TW201942451A - Faucet - Google Patents

Abstract

This faucet is provided with a spout, a switching valve, an operating section, and an alternating mechanism. The switching valve is located at a position where water pressure resistance to which the switching valve is subjected when the switching valve moves from a first position to a second position is lower than water pressure resistance to which the switching valve is subjected when the switching valve moves from the second position to the first position.

Description

Faucet

The invention relates to a water tap.

Conventionally, a faucet used in a kitchen, a bathroom, or the like has been disclosed (for example, refer to Patent Document 1). The faucet disclosed in Patent Document 1 includes a water outlet pipe forming a water outlet and a button attached to a front end of the water outlet pipe. With the operation of a button, you can switch between straight outflow and spray outflow.

A spring biasing the button forward is provided inside the outlet pipe. When the user presses the button, the button moves from the forward position to the rear position against the biasing force of the spring and remains in the rear position. Spray water will be sprayed. When the user further presses the button, the button returns to the forward position from the rear position by the biasing force of the spring, and remains in the forward position. The water will be discharged straight.
[Xizhi technical literature]
[Patent Literature]

Patent Document 1: Japanese Patent Application Laid-Open No. 2005-16032

[Problems to be solved by the invention]

In the configuration of Patent Document 1, since the biasing force of the spring is used to return the button, when the biasing force of the spring is insufficient, the button may not be reset and the normal operation may not be performed. In order to prevent this, it is necessary to cope with a large increase in the biasing force of the spring. As described above, there is still room for improvement in the normal operation of the button in the mechanism for operating the button by the biasing force of the spring.

Therefore, an object of the present invention is to provide a faucet capable of operating a button more normally in a mechanism for operating a button using a biasing force of a spring in order to solve the above-mentioned problem.
[Technical means to solve the problem]

In order to achieve the above object, the faucet of the present invention includes a water outlet pipe that extends in the axial direction and is formed inside: an upstream-side flow passage, a first downstream-side flow passage branched downstream of the upstream-side flow passage, and a second downstream A side flow channel and a connection flow channel connecting the upstream flow channel with the first and second downstream flow channels; a switching valve is provided in the connection flow channel and can be between the first position and the second position Moving, the first position is a position where the inlet of the first downstream side flow path is closed to communicate the upstream side flow path with the second downstream side flow path, and the second position is the second downstream side A position where the inlet of the flow path is closed so that the upstream flow path communicates with the first downstream flow path; the position holding mechanism is a mechanism that holds the switching valve at each of the first position and the second position And has a biasing member that biases the switching valve toward the second position; and an operation unit that moves the switching valve between the first position and the second position by a user's operation, the switching The valve system is arranged to move from the first position to the second position. Hydraulic resistance opposed by the water pressure resistance is less than the movement position when subjected to the first position from the second position.
[Compared with the efficacy of the prior art]

According to the faucet of the present invention, the button can be operated more normally.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The present invention is not limited by this embodiment.

(Implementation)
1 and 2 are schematic perspective views of the faucet 2 in the embodiment of the present invention. FIG. 1 shows a state where the water outlet pipe 6 of the faucet 2 is stored, and FIG. 2 shows a state where the water outlet pipe 6 is withdrawn to the front. 3 and 4 are diagrams showing a schematic configuration of the water pipe 6. FIG. 3 is a side view of the water outlet pipe 6, and FIG. 4 is a bottom view of the water outlet pipe 6.

The faucet 2 shown in FIG. 1 and FIG. 2 is a single lever type faucet device used in a kitchen, a bathroom, and the like. The faucet 2 includes a main body portion 4, a rod 5, a water outlet pipe 6, a button 10, and a water outlet portion 12 which are erected on a setting table (not shown). The water outlet portion 12 is a member having a plurality of water spray holes through which hot and cold water flows, and is also referred to as a "water spray plate" and a "spray panel".

The main body portion 4 is a member that integrally supports the rod 5 and the outlet pipe 6. A button 10 and a water outlet 12 are attached to a front end portion of the water outlet pipe 6. The water outlet pipe 6 is also called a "sprinkler". The water outlet pipe 6 extends in the axial direction C from the base end side connected to the main body portion 4 toward the front end side on which the button 10 is mounted.

The user can switch the water outlet / water stop from the water outlet 12 and adjust the water outlet temperature and water outlet volume by operating the lever 5. In addition, the user can switch between the spouted water and the flat spouted water by pressing the operation button 10 from the spouting water 12. The button 10 is an example of an operation unit for switching water out by a user's operation. The detailed mechanism for switching the water will be described later.

The internal structure of the water outlet pipe 6 shown in Figs. 3 and 4 will be described using Figs. 5 and 6. Fig. 5 is a sectional view taken along the line A-A of Fig. 3, and Fig. 6 is a sectional view taken along the line B-B of Fig. 4.

As shown in FIGS. 5 and 6, a flow path forming portion 14 is provided inside the outlet pipe 6. The flow path forming portion 14 is a member that forms a flow path of hot and cold water for discharging water from the water outlet portion 12. The hot and cold water is supplied from the hot and cold water supply source (not shown) located on the upstream side through the other flow path forming portion 38 to the flow path forming portion 14.

As shown in FIG. 6, the flow path forming portion 14 includes a tube portion 15. The pipe portion 15 is a tubular member that internally forms a first downstream-side flow path 16 and a second downstream-side flow path 18. The first downstream side flow channel 16 is a flow channel for straight water discharge, and the second downstream side flow channel 18 is a flow channel for spray water. Both the first downstream-side flow path 16 and the second downstream-side flow path 18 are connected to the water outlet hole of the water outlet portion 12.

The flow path forming section 14 further includes a flow path switching section 20 for selectively switching the first downstream-side flow path 16 and the second downstream-side flow path 18. The flow path switching portion 20 includes a switching valve 22 (FIG. 6), a valve holding portion 24, a cam mechanism 26 (FIG. 5), a connecting portion 28, and a position holding mechanism 30.

The switching valve 22 is a valve body that selectively closes any one of the first downstream-side flow path 16 and the second downstream-side flow path 18. The switching valve 22 according to the embodiment of the present invention is a ball valve provided so as to be capable of rotating around the axial direction C of the outlet pipe 6. The switching valve 22 is rotatable between a position (first position) that closes the inlet 16A of the first downstream-side flow path 16 and a position (second position) that closes the inlet 18A of the second downstream-side flow path 18. FIG. 6 shows a state where the switching valve 22 is in the first position. In this state, the water is sprayed from the water outlet 12 through the second downstream-side flow path 18.

The valve holding portion 24 is a member that holds the switching valve 22. The valve holding portion 24 is connected to a cam mechanism 26 (FIG. 5). The cam mechanism 26 is a member that converts a linear motion in the axial direction C generated by pressing the button 10 into a rotational motion centered on the axial direction C of the outlet pipe 6. The cam mechanism 26 is connected to the second connection portion 28 b of the connection portion 28.

The connecting portion 28 is a member that connects the cam mechanism 26 and a position holding mechanism 30 described later to each other. The connection portion 28 is attached to the inside of the button 10 and moves in the axial direction C of the outlet pipe 6 in response to the pressing of the button 10. The connection portion 28 includes a first connection portion 28a and a second connection portion 28b, and these are used as two branch portions. The first connection portion 28 a is connected to the position holding mechanism 30, and the second connection portion 28 b is connected to the cam mechanism 26.

The position holding mechanism 30 is a mechanism that maintains both the pressed state and the non-pressed state of the button 10. That is, the position holding mechanism 30 has a function of holding the switching valve 22 at each of the first position and the second position. The position holding mechanism may also be referred to as an "alternate mechanism". The first position of the switching valve 22 shown in FIGS. 5 and 6 corresponds to the pressed state of the button 10, and the second position of the switching valve 22 corresponds to the non-pressed state of the button 10.

As shown in FIG. 5, the position holding mechanism 30 includes a percussion mechanism including springs 32A and 32B. The springs 32A and 32B according to the embodiment of the present invention are examples of a biasing member that biases the switching valve 22 toward the second position. In the first position shown in FIG. 6, although the springs 32A and 32B bias the switching valve 22 toward the second position, they are maintained in the first position by the position holding mechanism 30.

In the above configuration, when the switching valve 22 is in a non-pressing state, that is, it is located at the second position, it moves to the first position against the biasing force of the springs 32A and 32B by the pressing operation of the button 10. In the first position, the spray water is sprayed from the water outlet 12. When the operation button 10 is further pressed from this state, the maintenance state of the switching valve 22 by the position holding mechanism 30 is released. Accordingly, the switching valve 22 is moved to the second position by the biasing force of the springs 32A and 32B. In the second position, the water is discharged straight. By pressing the button 10 in this manner, the position of the switching valve 22 can be switched between the first position and the second position, and the spray water and the straight water can be switched.

Next, the peripheral configuration of the switching valve 22 will be described using FIG. 7. FIG. 7 is an enlarged longitudinal sectional view of the periphery of the switching valve 22.

As shown in FIG. 7, in addition to the first downstream-side flow path 16 and the second downstream-side flow path 18, an upstream-side flow path 34 and a connection flow path 36 are also provided inside the outlet pipe 6.

The upstream side flow path 34 is the most upstream flow path among the flow paths provided in the outlet pipe 6. The upstream-side flow path 34 is provided on the upstream side of the connection flow path 36 and is connected to the connection flow path 36. The upstream-side flow path 34 is formed by another flow path forming portion 38. The hot and cold water whose temperature and flow rate have been adjusted is supplied from the body portion 4 (FIG. 1, FIG. 2) to the upstream side flow path 34.

The connecting flow path 36 is a flow path connecting the upstream flow path 34 with the first downstream flow path 16 and the second downstream flow path 18. The connection flow path 36 is provided between the upstream-side flow path 34 and the first downstream-side flow path 16 and the second downstream-side flow path 18. As shown in FIG. 7, a switching valve 22 and a valve holding portion 24 are arranged in the connection flow path 36. FIG. 7 shows a state where the switching valve 22 is in a second position that closes the second downstream-side flow path 18.

As shown in FIG. 7, an orifice 39 is formed at a boundary between the upstream flow passage 34 and the connection flow passage 36. The orifice 39 is formed by an orifice plate 40 protruding inward from the inner peripheral wall of the flow path forming portion 38. The orifice 39 constitutes an outlet 34A of the upstream-side flow path 34.

In a state where hot and cold water flows in the outlet pipe 6, the water flow W from the upstream side flow path 34 hits the side surface 24A of the valve holding portion 24, and the switching valve 22 held by the valve holding portion 24 is applied to the first Water pressure resistance R when moving between the position and the second position.

Next, the hydraulic pressure resistance R that the switching valve 22 receives when it is positioned at each of the first position and the second position will be described with reference to FIGS. 8A and 8B. FIG. 8A shows a state where the switching valve 22 is in the first position, and FIG. 8B shows a state where the switching valve 22 is in the second position.

In an embodiment of the present invention, the water pressure resistance R1 at the first position shown in FIG. 8A is designed to be smaller than the water pressure resistance R2 at the second position shown in FIG. 8B. Specifically, this is achieved by setting the positional relationship of the plurality of flow paths 16, 18, and 34 and the positions of the switching valve 22 and the valve holding portion 24 to predetermined positions in advance. With this setting, the hydraulic pressure resistance (≒ R1) when the switching valve 22 moves from the first position to the second position will be smaller than the hydraulic pressure resistance (≒ R2) when it moves from the second position to the first position. ). As described above, when the switching valve 22 is moved from the first position to the second position, the biasing force of the springs 32A and 32B of the position holding mechanism 30 is used to move the switching valve 22. At this time, since the hydraulic resistance (≒ R1) received by the switching valve 22 is set to be small, even when the biasing force of the springs 32A and 32B is small, the switching valve 22 can be moved and returned. Thereby, the button 10 can be operated normally.

On the other hand, when the switching valve 22 is moved from the second position to the first position, the switching valve 22 is moved by pressing the button 10 against the biasing force of the springs 32A and 32B. Although the hydraulic pressure resistance (≒ R2) is set to be large at this time, unlike the case where the biasing force of the springs 32A and 32B is used, the user can surely move the switching valve 22 by applying a large pressing force. .

To calculate and measure the water pressure resistances R1 and R2 in the first position and the second position, for example, the pressure of the button 10 (maximum ) 値 "is calculated indirectly by replacing" hydraulic resistance R1, R2 ". The dynamometer can also use a commercially available dynamometer. Alternatively, a pressure gauge may be provided in the connection flow path 36 to directly calculate the water pressure resistances R1 and R2.

In order to achieve the above-mentioned relationship of water pressure resistance, the faucet 2 according to the embodiment of the present invention adopts a careful concept of the positional relationship shown in FIG. 9. FIG. 9 is a diagram showing the inside of the outlet pipe 6 when viewed from the flow channel direction (the axial direction C of the outlet pipe 6) of the upstream flow channel 34. FIG.

As shown in FIG. 9, the outlet 34A (orifice 39) of the upstream-side flow path 34 is circular in cross section. A center 34C exists at the outlet 34A of the upstream-side flow path 34. The inlet 16A of the first downstream side flow passage 16 and the inlet 18A of the second downstream side flow passage 18 are located in front of the outlet 34A of the upstream side flow passage 34 (the front end side of the outlet pipe 6) through the connection flow passage 36. The cross sections of the inlet 16A and the inlet 18A are formed in a circular shape. A center 16C exists at the entrance 16A, and a center 18C exists at the entrance 18A.

As shown in FIG. 9, the center 16C of the entrance 16A is located above the center 34C of the exit 34A. On the other hand, the center 18C of the entrance 18A is located below the center 34C of the exit 34A.

The distance (section distance, height distance) D1 from the center 16C to the center 34C is set to be longer than the distance (section distance, height distance) D2 from the center 34C to the center 18C. With this configuration, in the longitudinal section shown in FIG. 9, the inlet 16A of the first downstream side flow passage 16 is located at a higher position than the inlet of the second downstream side flow passage 18 with respect to the outlet 34A of the upstream side flow passage 34. 18A farther away. As a result, compared with the second position, the area of the switching valve 22 in the first position that closes the inlet 16A of the first downstream side flow passage 16 by the water flow W directly hits the side surface 24A of the valve holding portion 24 is smaller. . Therefore, the hydraulic pressure resistance R to which the switching valve 22 is subjected is also small. By setting the positions of the centers 16C, 18C, and 34C in this way, it is possible to simply realize that the water pressure resistance R1 received at the first position shown in FIG. 8A will be smaller than the water pressure resistance received at the second position shown in FIG. 8B. The composition of R2.

The first downstream-side flow path 16 is located above the second downstream-side flow path 18, so when the switching valve 22 is moved from the first position to the second position, it can receive a propulsive force caused by gravity . Since the biasing force of the springs 32A and 32B can be used in addition to the propulsive force of gravity, the switching valve 22 can be reliably moved even when the biasing force of the springs 32A and 32B is further reduced. Thereby, the button 10 can be operated normally.

Furthermore, since the first downstream side flow passage 16 and the second downstream side flow passage 18 are arranged side by side up and down, the dimension of the width direction X of the outlet pipe 6 can be shortened. Thereby, the outlet pipe 6 can be made thin, and the design of the faucet 2 can be improved.

As described above, the faucet 2 according to the embodiment of the present invention includes the water outlet pipe 6, the button 10, the switching valve 22, and the position holding mechanism 30. The outlet pipe 6 is formed inside: an upstream-side flow path 34, a first downstream-side flow path 16, a second downstream-side flow path 18, and a connection flow path 36. The switching valve 22 is movable between a first position and a second position, which closes the inlet 16A of the first downstream-side flow path 16 and communicates the upstream-side flow path 34 with the second downstream-side flow path 18 The second position is a position where the inlet 18A of the second downstream-side flow path 18 is closed and the upstream-side flow path 34 communicates with the first downstream-side flow path 16. The button 10 is an operation portion that moves the switching valve 22 between the first position and the second position by a user's pressing operation. The position holding mechanism 30 is a mechanism that holds the switching valve 22 at each of the first position and the second position, and includes springs 32A and 32B that bias the switching valve 22 toward the second position. The switching valve 22 is provided at a position where the hydraulic pressure resistance (≒ R1) when moving from the first position to the second position is smaller than the hydraulic pressure resistance (≒ R2) when moving from the second position to the first position. .

According to this structure, when the switching valve 22 is moved from the second position to the first position, the button 10 is pressed against the spring force. On the other hand, when returning from the first position to the second position, the spring 32A is used. And 32B biasing pressure to reset the switching valve 22. Since the hydraulic pressure resistance (≒ R1) when the switching valve 22 is reset is set using the biasing force of the springs 32A and 32B, it is smaller than the hydraulic pressure resistance (≒ R2) when the switching valve 22 moves in the reverse direction. By setting the bias pressure in the form of the hydraulic pressure resistance, the switching valve 22 can be reliably returned. With this configuration, the switching valve 22 can be reliably returned even if the spring force is set to be small, and the button 10 can be normally operated in a mechanism that uses the biasing force of the springs 32A and 32B to operate the button 10.

In the faucet 2 according to the embodiment of the present invention, the first downstream side flow relative to the center 34C of the outlet 34A of the upstream side flow passage 34 in a cross section viewed from the flow direction of the upstream side flow passage 34 The center 16C of the entrance 16A of the channel 16 is located farther than the center 18C of the entrance 18A of the second downstream side flow channel 18.

With such a configuration, the inlet 16A of the first downstream side flow path 16 is farther from the outlet 34A of the upstream side flow path 34 than the inlet 18A of the second downstream side flow path 18, and is therefore located in the first position that closes the inlet 16A. The hydraulic pressure resistance R1 experienced by the switching valve 22 will also be smaller. Thereby, the hydraulic pressure resistance (≒ R1) when the switching valve 22 moves from the first position to the second position can be simply realized. The hydraulic pressure resistance (≒ R1) when the switching valve 22 moves from the second position to the first position can be easily realized. R2).

In the faucet 2 according to the embodiment of the present invention, the center 16C of the inlet 16A of the first downstream side flow channel 16 is located downstream of the second downstream side in a cross-section viewed from the direction of the upstream channel 34 The center 18C of the entrance 18A of the side flow path 18 is further above.

With such a configuration, when the switching valve 22 is moved from the first position closing the first downstream side flow path 16 to the second position closing the second downstream side flow path 18, the switching valve 22 may be in addition to the biasing force of the spring , Even more affected by the propulsive force caused by gravity. Thereby, even if the biasing force of the spring is further reduced, the switching valve 22 can be reliably moved, and the button 10 can be normally operated.

Moreover, according to the faucet 2 according to the embodiment of the present invention, the first downstream side flow passage 16 and the second downstream side flow passage 18 are arranged side by side up and down.

Thus, by arranging the two downstream side flow channels 16, 18 side by side, the lateral size of the outlet pipe 6 can be made small. Thereby, the designability of the faucet 2 can be improved.

In addition, if the faucet 2 according to the embodiment of the present invention, the switching valve 22 is provided at a position where the water pressure resistance R1 received at the first position is smaller than the water pressure resistance R2 received at the second position.

With this structure, the water pressure resistance (≒ R1) when moving from the first position to the second position can be simply realized. The water pressure resistance (≒ R1) when moving from the second position to the first position ( ≒ R2).

The present invention is not limited to those embodiments, but can be implemented in various other aspects. For example, in the embodiment, the case where the faucet 2 is a single lever type faucet device will be described, but it is not limited to this case, and may be a faucet device other than the single lever type.

In addition, in the embodiment, the center 16C of the inlet 16A of the first downstream side flow channel 16 is provided at a center 34C of the inlet 34A of the first downstream side flow channel 16 with respect to the center 34C of the outlet 34A of the upstream side flow channel 34 The case where the center of 18A is further away will be described, but it is not limited to this case. The distance D1 from the center 16C to the center 34C and the distance D2 from the center 34C to the center 18C may be set to be the same. In such a case, the vertical relationship between the inlet 16A of the first downstream side flow channel 16 and the inlet 18A of the second downstream side flow channel 18 may be maintained, or the side surface 24A of the valve holding portion 24 impacted by the water flow W may be changed Shape, etc. to achieve the magnitude relationship of the hydraulic pressure resistance shown in FIG. 8A and FIG. 8B.

In addition, in the embodiment, the case where two springs, that is, springs 32A and 32B are provided as the springs 32A and 32B of the position holding mechanism 30 will be described, but the number and position of the springs are not limited thereto. Any spring can be used as long as it has a function of biasing the switching valve 22 toward either the first position or the second position.

In the embodiment, the springs 32A and 32B are exemplified as the biasing members of the bias switching valve 22, but the invention is not limited to this case. As long as it has the function of the bias switching valve 22, any biasing member other than a spring may be used.

In addition, in the embodiment, the button 10 is exemplified as an operation portion where the user switches the position of the switching valve 22, but it is not limited to this case. The position of the switching valve 22 may be switched by an operation other than a pressing operation (for example, torsion or rotation), and an operation unit of any aspect may be used.

In addition, in the embodiment, the case where the water flow W flowing through the upstream side flow path 34 directly hits the side surface 24A of the valve holding portion 24 will be described, but it is not limited to this case. For example, as shown in the modification shown in FIG. 10, the flow rate adjustment plate 52 may be provided. As shown in FIG. 11, the flow rate adjusting plate 52 shown in FIG. 10 is a disc-shaped member having a plurality of through holes 54 formed in the thickness direction. In the example shown in FIG. 10, the flow rate adjustment plate 52 is provided at a position adjacent to the orifice plate 40. The flow adjustment plate 52 is fixed by being pressed by a hose (not shown) in a state where it is inserted in the position shown in FIG. 10, but is not limited to the case where it is provided separately from the flow path forming portion 38. It may be integrally formed with the flow path forming portion 38. With this structure, the flow rate of the water flow W flowing through the upstream side flow path 34 decreases when passing through the flow rate adjustment plate 52. This can prevent the hydraulic pressure resistance R2 applied to the side surface 24A of the valve holding portion 24 from becoming excessively large. Therefore, the position of the switching valve 22 can be easily switched by the pressing operation of the button 10.

The flow rate adjustment plate 52 is not limited to the structure shown in FIGS. 10 and 11, and any structure may be adopted as long as the flow rate of the water flow W can be reduced. For example, the flow adjustment plates 62 and 72 shown in FIG. 12 and FIG. 13 may be used. The flow adjustment plate 62 shown in FIG. 12 is a disc-shaped member that passes through the plurality of through-holes 64 in the thickness direction, and the flow adjustment plate 72 shown in FIG. 13 similarly passes through the plurality of through-holes 74 in the thickness direction. Disc-shaped member. With such a configuration, the flow rate of the water flow W can be reduced when the water flow W flowing through the upstream flow path 34 passes through the flow adjustment plate 62 or the flow adjustment plate 72. This can prevent the hydraulic pressure resistance R2 from becoming excessively large. Therefore, the position of the switching valve 22 can be easily switched by the pressing operation of the button 10.

Furthermore, by appropriately combining the various aspects described above, the respective effects can be achieved.

The present invention is fully described with reference to additional drawings and in combination with preferred embodiments, but those with ordinary knowledge in the technical field should be aware of its various variations or modifications. Such variations or amendments should be understood to be included in the present invention as long as they do not depart from the scope of the present invention which is regulated by the scope of the attached patent application for invention. In addition, the combination of elements or the order change in the implementation form can be realized without departing from the scope and technical idea of the present invention.
[Industrial availability]

The invention has its benefits for faucets.

2‧‧‧faucet

4‧‧‧Body

5‧‧‧ par

6‧‧‧ Outlet pipe

8‧‧‧ Outlet

10‧‧‧ button (operation part)

12‧‧‧ Outlet

14‧‧‧ runner formation department

15‧‧‧ Management Department

16‧‧‧First downstream side runner

16A, 18A‧‧‧ Entrance

16C, 18C, 34C‧‧‧ Center

18‧‧‧Second downstream side runner

20‧‧‧ runner switching department

22‧‧‧ switching valve

24‧‧‧Valve holding section

24A‧‧‧Side

26‧‧‧ cam mechanism

28‧‧‧Connecting Department

28a‧‧‧first connection

28b‧‧‧Second connection section

30‧‧‧Position holding mechanism (alternating mechanism)

32A, 32B‧‧‧Spring (biasing member)

34‧‧‧ upstream side runner

34A‧‧‧Exit

36‧‧‧Connecting runner

38‧‧‧ runner formation section

39‧‧‧ orifice

40‧‧‧ orifice plate

52, 62, 72‧‧‧ flow adjustment board

54, 64, 74‧‧‧through holes

C‧‧‧ axis direction

D1, D2‧‧‧ distance

R, R1, R2 ‧‧‧ Hydraulic resistance

W‧‧‧ current

X‧‧‧Width direction

FIG. 1 is a diagram showing a schematic configuration of a faucet in an embodiment of the present invention.

FIG. 2 is a diagram showing a schematic configuration of a faucet in an embodiment of the present invention.

Fig. 3 is a side view showing a water outlet pipe in an embodiment of the present invention.

FIG. 4 is a bottom view showing a water outlet pipe according to an embodiment of the present invention.

Fig. 5 is a sectional view taken along the line A-A in Fig. 3.

Fig. 6 is a sectional view taken along line B-B in Fig. 4.

FIG. 7 is an enlarged longitudinal sectional view of the periphery of a switching valve in an embodiment of the present invention.

FIG. 8A is a longitudinal sectional view showing the switching valve and its periphery in the first position.

FIG. 8B is a longitudinal sectional view showing the switching valve and its periphery in the second position.

FIG. 9 is a diagram showing the inside of the outlet pipe when viewed from the flow channel direction of the upstream flow channel.

Fig. 10 is a sectional view showing a switching valve and its surroundings in a modification of the present invention.

FIG. 11 is a perspective view showing a flow rate adjusting plate in a modification of the present invention.

FIG. 12 is a perspective view showing a flow rate adjusting plate according to another modification of the present invention.

FIG. 13 is a perspective view showing a flow rate adjusting plate according to another modification of the present invention.

Claims (5)

A faucet comprising: The outlet pipe extends in the axial direction and is formed internally: an upstream-side flow path; a first downstream-side flow path and a second downstream-side flow path, branching downstream of the upstream-side flow path; The upstream flow channel is connected to the first downstream flow channel and the second downstream flow channel; A switching valve is provided in the connecting flow path and can be moved between a first position and a second position; the first position is to close the inlet of the first downstream flow path so that the upstream flow path and the A position where the second downstream side flow channel is connected; the second position is a position where the inlet of the second downstream side flow channel is closed so that the upstream side flow channel is in communication with the first downstream side flow channel; A position holding mechanism that holds the switching valve at each of the first position and the second position, and includes a biasing member that biases the switching valve toward the second position; and An operating unit that moves the switching valve between the first position and the second position by an operation of a user; The switching valve is disposed at a position where the water pressure resistance received when moving from the first position to the second position is smaller than the water pressure resistance received when moving from the second position to the first position. The faucet as described in claim 1, wherein: In a cross-section viewed from the flow path direction of the upstream flow path, the center of the inlet of the first downstream flow path is located at a position that is higher than the center of the outlet of the upstream flow path. The center of the entrance is further away. The faucet as described in claim 1, wherein: In a cross section viewed from the flow path direction of the upstream flow path, the center of the inlet of the first downstream flow path is located above the center of the inlet of the second downstream flow path. The faucet as described in claim 1, wherein: The first downstream-side flow path and the second downstream-side flow path are arranged side by side vertically. The faucet according to any one of claims 1 to 4, wherein: The switching valve is provided at a position where the water pressure resistance received in the first position is smaller than the water pressure resistance received in the second position.