Faucet equipment

Abstract

To provide a faucet device capable of releasing excess water pressure to the outside without affecting the appearance of the faucet device.SOLUTION: A faucet device includes: a main body 10 having a water passage 19 inside; a mixing part 40 placed inside the main body 10 for mixing hot water flowing in the water passage 19; an opening / closing part 50 placed inside the main body 10 for opening / closing the water passage 19 at the downstream of the mixing part 40; and a pressure relief part 60 placed inside the main body 10 for releasing the water pressure when the water pressure of the water passage 19 exceeds a predetermined value. The pressure relief part 60 is configured to release the water pressure to an inner space S of the main body 10, and the inner space S communicates with the outside of the main body 10.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a water faucet device. [Background technology]

[0002] A water faucet device, for example, as described in Patent Document 1 below, is known in the prior art. A pressure relief valve is provided in the main body of this water faucet device. The pressure relief valve protrudes outward from the main body. When the water pressure in the main body suddenly increases, the pressure relief valve opens the flow path of the main body to the outside of the main body. This makes it possible to prevent damage to the main body due to water pressure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-82069 A Summary of the Invention [Problem to be solved by the invention]

[0004] Since the pressure relief valve of the faucet device as described above protrudes outward from the main body, it is likely to affect the appearance of the faucet device. There is a demand for a way to release excess water pressure to the outside without affecting the appearance of the faucet device.

[0005] The present disclosure has been completed based on the above-mentioned circumstances, and aims to provide a faucet device that is capable of releasing excess water pressure to the outside without affecting the appearance of the faucet device. [Means for solving the problem]

[0006] The faucet device of the present disclosure comprises a main body having a water passage therein, a mixing section disposed inside the main body for mixing hot and cold water that flows into the water passage, an opening / closing section disposed inside the main body for opening and closing the water passage downstream of the mixing section, and a pressure relief section disposed inside the main body for releasing the water pressure when the water pressure in the water passage reaches or exceeds a predetermined value, the pressure relief section releasing the water pressure into the internal space of the main body, and the internal space being connected to the outside of the main body.

[0007] The faucet device of the present disclosure comprises a main body having a water passage therein, a mixing section disposed inside the main body for mixing hot and cold water that flows into the water passage, an opening / closing section disposed inside the main body for opening and closing the water passage downstream of the mixing section, and a pressure relief section disposed inside the main body for releasing the water pressure when the water pressure in the water passage reaches or exceeds a predetermined value, wherein a long space is formed in the axial direction inside the main body, and the mixing section, the opening / closing section, and the pressure relief section are disposed on the axis of the long space in the main body. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a water faucet device according to a first embodiment; [Diagram 2] FIG. 1 is an exploded perspective view showing a water faucet device. [Diagram 3] Cross-sectional view of a water faucet device [Figure 4] FIG. 2 is an enlarged perspective view of a portion of the pressure relief portion; [Diagram 5] An enlarged cross-sectional view of the pressure relief portion in a closed state. [Figure 6] Enlarged cross-sectional view of the pressure relief portion in an open state [Figure 7] FIG. 11 is an enlarged cross-sectional view showing a pressure relief portion of a water faucet device according to a second embodiment. [Figure 8] FIG. [Figure 9] Enlarged cross-sectional view of the pressure relief portion in an open state [Figure 10]FIG. 11 is an enlarged cross-sectional view showing a pressure relief portion of a water faucet device according to a third embodiment. [Figure 11] Enlarged cross-sectional view of the pressure relief portion in an open state DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] <Embodiment 1> 1, the faucet device M includes a main body 10, a discharge pipe 12, a shower elbow 13, a first crank leg 14, a second crank leg 15, a first operating part 16, and a second operating part 17. The faucet device M is a mixer faucet that is attached to a wall surface of a bathroom or the like by the first crank leg 14 and the second crank leg 15.

[0010] Hereinafter, in each component, the side where the second operating part 17 is provided is referred to as the left side, the side where the first operating part 16 is provided is referred to as the right side, the side where the discharge pipe 12 is provided is referred to as the front side, and the side where the shower elbow 13 is provided is referred to as the rear side. The positive side of the X-axis in FIG. 1 indicates the right side, the negative side of the X-axis indicates the left side, the positive side of the Z-axis indicates the front side, and the negative side of the Z-axis indicates the rear side. The X-axis is parallel to the axial direction of the main body 10. "Parallel" includes a state where the faucet device M is almost parallel in addition to a state where the faucet device M is strictly parallel. The positive side of the Y-axis in FIG. 1 indicates the upper side when the faucet device M is attached to a wall surface, and the negative side of the Y-axis indicates the lower side when the faucet device M is attached to a wall surface.

[0011] The main body 10 has a cylindrical shape that is long in the left-right direction. The water discharge pipe 12 extends forward from the underside of the main body 10. The tip of the water discharge pipe 12 is provided with a water outlet 18. The shower elbow 13 is connected to the rear surface of the main body 10. A shower hose (not shown) is connected to the shower elbow 13. The tip of the shower hose is connected to a shower head (not shown).

[0012] The first crank leg 14 is connected to the right of the center in the left-right direction on the rear surface of the main body 10. The first crank leg 14 is a pipe for supplying water. The inside of the first crank leg 14 is a water supply passage. The second crank leg 15 is connected to the left of the center in the left-right direction on the rear surface of the main body 10. The second crank leg 15 is a pipe for supplying hot water. The inside of the second crank leg 15 is a hot water supply passage.

[0013] The first operating part 16 is attached to the right end of the main body 10. The first operating part 16 is an operating part that switches between water discharge and water stop of the faucet device M, switches between water discharge on the water discharge pipe 12 side and water discharge on the shower side, and adjusts the amount of water discharged when water is discharged. The first operating part 16 is operated by rotating.

[0014] The second operating part 17 is attached to the left end of the main body 10. The second operating part 17 is an operating part that adjusts the temperature of the water discharged from the water faucet device M. The second operating part 17 is operated by rotating.

[0015] As shown in Fig. 3, the main body 10 has a water passage 19 therein. The water passage 19 is connected to the downstream side of the water supply passage of the first crank leg 14 and the hot water supply passage of the second crank leg 15. The water passage 19 has a water passage, a hot water passage, and a passage for mixed water in which cold water and hot water are mixed. The water passage and the hot water passage are formed upstream of a mixer 40, which will be described later. The mixed water passage is formed downstream of the mixer 40.

[0016] As shown in Fig. 2, the main body 10 has a cylindrical shape that is long in the left-right direction. An axially long space 10S is formed inside the main body 10. A first opening 21 and a second opening 22 are formed on both the left and right ends of the main body 10. The first opening 21 opens to the right side of the main body 10. The second opening 22 opens to the left side of the main body 10.

[0017] The main body 10 has a double structure having an outer pipe 23 and an inner pipe 24. The outer pipe 23 is made of metal. The outer pipe 23 is cylindrical. The inner surface of the outer pipe 23 is a smooth surface without any irregularities. The outer pipe 23 has an opening (not shown) that communicates with the water supply passage. A passage for water flowing in from the water supply passage is formed between the outer pipe 23 and the inner pipe 24.

[0018] The inner pipe 24 is made of resin. The inner pipe 24 is cylindrical. The inner pipe 24 forms a space 10S, a first opening 21, and a second opening 22. The first opening 21 is provided for disposing an opening / closing unit 50 inside the main body 10. The second opening 22 is provided for disposing a mixing unit 40 inside the main body 10. The inner pipe 24 is formed with a hot water side opening (not shown) that directly communicates with the hot water supply passage, and a cold water side opening (not shown) that communicates with the water passage. The hot water side opening and the cold water side opening are provided to the left of the center of the inner pipe 24 in the left-right direction.

[0019] A pipe seal member 25 is disposed between the outer pipe 23 and the inner pipe 24. The pipe seal members 25 are disposed on both left and right ends of the outer pipe 23 and the inner pipe 24. The water passage is sealed by the left and right pipe seal members 25.

[0020] A mixing section 40, an opening / closing section 50, and a pressure relief section 60 are arranged inside the main body section 10. The mixing section 40, the opening / closing section 50, and the pressure relief section 60 are arranged on an axis L extending in the longitudinal direction of the space 10S of the main body section 10. The axis L is parallel to the rotation axis of the mixing operation shaft 43 and the extension direction of the opening / closing operation shaft 53 described later.

[0021] The mixing unit 40 is disposed on the left side of the main body 10. The mixing unit 40 is inserted into the inside of the inner tube 24 from the second opening 22 and assembled. The mixing unit 40 includes a thermostatic (with automatic temperature control function) hot and cold water mixing valve. The mixing unit 40 includes a mixing case 41, a mixing valve body 42, a mixing operation shaft 43, and a second operation unit 17.

[0022] The mixing case 41 has a water inlet and a hot water inlet (not shown). The inside of the mixing case 41 communicates with a water passage through the water inlet. The inside of the mixing case 41 communicates with a hot water passage through the hot water inlet.

[0023] The mixing case 41 has a mixing chamber 44. The cold water and hot water that flow into the mixing case 41 are mixed in the mixing chamber 44. A coil-shaped temperature-sensitive spring 46 made of a shape memory alloy is housed in the mixing chamber 44. The temperature-sensitive spring 46 expands and contracts in response to the temperature of the mixed water of cold water and hot water mixed inside the mixing chamber 44, and adjusts the position of the mixing valve body 42.

[0024] The mixing valve body 42 moves left and right to adjust the amount of water flowing in from the water inlet and the amount of hot water flowing in from the hot water inlet, thereby changing the ratio of water and hot water mixed in the mixing chamber 44.

[0025] The mixing operation shaft 43 protrudes to the left side from the second opening 22, and is connected to the second operation part 17. The mixing operation shaft 43 rotates by operation of the second operation part 17, and moves the mixing valve body .

[0026] The mixing section 40 is fixed to the inner tube 24 by the second end member 26 and the second fixing member 27. The second end member 26 is disposed on the left side of the mixing section 40. The second fixing member 27 is fitted onto the outer periphery of the second end member 26. The second fixing member 27 is fixed to the left end of the inner tube 24.

[0027] A mixing section seal member 28 is disposed between the mixing section 40 and the inner pipe 24. The mixing section seal member 28 is annular, and is in close contact with the outer circumferential surface of the mixing case 41 and the inner circumferential surface of the inner pipe 24. A plurality of mixing section seal members 28 are disposed at predetermined intervals in the left-right direction.

[0028] The inner pipe 24 has a wall portion 24W between a space in which the mixing section 40 is disposed and a space in which the opening / closing section 50 is disposed. An outlet 45 is formed in the wall portion 24W. The mixed water that has passed through the mixing section 40 flows out through the outlet 45 to the opening / closing section 50 side.

[0029] The opening / closing unit 50 is disposed on the right side of the main body 10. The opening / closing unit 50 is inserted into the inside of the inner pipe 24 from the first opening 21 and assembled therein. The opening / closing unit 50 opens and closes the passage of the mixed water downstream of the mixer 40.

[0030] The opening / closing part 50 has an opening / closing case 51, an opening / closing valve body 52, an opening / closing operation shaft 53, and a first operation part 16. The opening / closing case 51 has an inlet 54, a discharge pipe side outlet 55, and a shower side outlet (not shown). The inlet 54 is formed at the left end of the opening / closing case 51. The inlet 54 is adjacent to the outlet 45 of the inner pipe 24. The discharge pipe side outlet 55 communicates with the discharge pipe 12. The shower side outlet communicates with the shower elbow 13.

[0031] The on-off valve body 52 is a cylinder valve body. The on-off valve body 52 is housed inside the on-off case 51. The on-off valve body 52 has a discharge pipe side opening and a shower side opening (not shown). The discharge pipe side opening is formed in a position that overlaps with the discharge pipe side outlet 55 of the opening and closing case 51 when the on-off valve body 52 is rotated. The shower side opening is formed in a position that overlaps with the shower side outlet of the opening and closing case 51 when the on-off valve body 52 is rotated.

[0032] The opening / closing operation shaft 53 connects the first operation part 16 and the opening / closing valve body 52 of the opening / closing part 50. The opening / closing operation shaft 53 is disposed on the axis L of the space 10S of the main body 10. The rotation center of the opening / closing valve body 52 is parallel to the axis L. The opening / closing operation shaft 53 transmits the operation of the first operation part 16 to the opening / closing valve body 52.

[0033] The opening / closing valve body 52 rotates by operating the first operating part 16. As a result, when the discharge pipe side opening and the discharge pipe side outlet 55 are connected, the mixed water flows out to the discharge pipe 12 side. When the shower side opening and the shower side outlet are connected, the mixed water flows out to the shower side. The amount of water discharged increases or decreases depending on the degree of overlap between the discharge pipe side opening and the discharge pipe side outlet 55 and the degree of overlap between the shower side opening and the shower side outlet. When neither the discharge pipe side opening and the discharge pipe side outlet 55 nor the shower side opening and the shower side outlet are connected, the water faucet device M is shut off.

[0034] The opening / closing part 50 is fixed to the inner tube 24 by a first end member 29 and a first fixing member 31. The first end member 29 is disposed on the right side of the opening / closing part 50. The first fixing member 31 is fitted onto the outer periphery of the first end member 29. The first fixing member 31 is fixed to the right end part of the inner tube 24.

[0035] An opening / closing part seal member 32 is disposed between the opening / closing part 50 and the inner tube 24. The opening / closing part seal member 32 is annular, and is in close contact with the outer circumferential surface of the opening / closing case 51 and the inner circumferential surface of the inner tube 24. A plurality of opening / closing part seal members 32 are disposed at predetermined intervals in the left-right direction.

[0036] The pressure relief section 60 is disposed downstream of the mixing section 40 and on the primary side of the opening / closing section 50. The primary side of the opening / closing section 50 is upstream of the opening that is opened and closed by the rotation of the opening / closing valve body 52. ​​The secondary side of the opening / closing section 50 is downstream of the opening that is opened and closed by the rotation of the opening / closing valve body 52.

[0037] The pressure relief section 60 is provided inside the opening / closing section 50. The pressure relief section 60 is formed on the opening / closing operation shaft 53. When the water pressure in the water passage 19 on the primary side of the opening / closing section 50 becomes equal to or higher than a predetermined value, the pressure relief section 60 relieves the water pressure in the water passage 19 on the primary side of the opening / closing section 50 to the internal space S. The internal space S is in communication with the outside of the main body section 10.

[0038] As shown in Figs. 3 to 6, the pressure relief portion 60 has an axial hole 61, a relief portion sealing member 63, a shaft 62, an attachment member 64, and an elastic body 65. The axial hole 61 is formed inside the opening / closing operation shaft 53. The axial hole 61 extends from the end face of the opening / closing operation shaft 53 to the right along the axis L. The left end of the axial hole 61 is open. The axial hole 61 communicates with the outside of the opening / closing operation shaft 53 by a through hole 66. The axial hole 61 and the through hole 66 are included in the internal space S.

[0039] 5, the escape portion sealing member 63 is disposed inside the axial hole 61. The escape portion sealing member 63 has an annular shape. The escape portion sealing member 63 is prevented from coming off the axial hole 61 by an attachment member 64. The escape portion sealing member 63 is disposed to the left of the through hole 66.

[0040] The shaft 62 fits into the shaft hole 61 and passes through the seal member 63 for the escape portion. The shaft 62 is cylindrical. The outer diameter dimension of the shaft 62 varies. The shaft 62 has a sealed portion 62A and a non-sealed portion 62B. The sealed portion 62A is formed to the right of the non-sealed portion 62B. The outer diameter dimension of the sealed portion 62A is larger than the outer diameter dimension of the non-sealed portion 62B. The sealed portion 62A is in close contact with the inner circumferential surface of the seal member 63 for the escape portion. The non-sealed portion 62B forms a gap with the inner circumferential surface of the seal member 63 for the escape portion.

[0041] The shaft 62 has a flange 67. The flange 67 is provided on the left end of the shaft 62. The flange 67 and the shaft 62 move together. The shaft 62 is a moving member that moves toward the first opening 21 when the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 reaches or exceeds a predetermined value.

[0042] The mounting member 64 is attached to the tip of the opening / closing operation shaft 53 (see FIG. 4). The mounting member 64 has a contact portion 68, a hook portion 71, and a cylindrical portion 69. The contact portion 68 is disposed so as to cover the end face of the opening / closing operation shaft 53. A first insertion hole 72 is formed in the contact portion 68. The shaft 62 is inserted into the first insertion hole 72.

[0043] The hook portion 71 extends to the right from the abutment portion 68. The hook portion 71 hooks onto a receiving portion 73 provided on the outer circumferential surface of the opening / closing operation shaft 53. This keeps the mounting member 64 attached to the opening / closing operation shaft 53.

[0044] 5, the cylindrical portion 69 is provided so as to protrude to the right side from the abutment portion 68. The cylindrical portion 69 is fitted into the left end portion of the shaft hole 61.

[0045] The elastic body 65 is housed inside the cylindrical portion 69. The elastic body 65 is a coil spring. The elastic force of the elastic body 65 acts in a direction to move the shaft 62 to the left. The elastic body 65 is attached around the shaft 62. One end of the elastic body 65 abuts against the flange portion 67, and the other end abuts against the bottom wall of the cylindrical portion 69. The elastic body 65 expands and contracts in a direction parallel to the axis L between the flange portion 67 and the bottom wall. The elastic body 65 contracts until the flange portion 67 abuts against the abutment portion 68. A second insertion hole 74 is formed in the bottom wall of the cylindrical portion 69. The shaft 62 is inserted into the second insertion hole 74.

[0046] The function of the pressure relief section 60 will now be described. When the water pressure in the water passage 19 on the primary side of the opening / closing section 50 is lower than a predetermined value, the pressure relief section 60 closes the water passage 19 on the primary side of the opening / closing section 50, as shown in Fig. 5. This state is referred to as the closed state of the pressure relief section 60. When the pressure relief section 60 is in the closed state, the seal section 62A of the shaft 62 is in close contact with the relief section seal member 63. This seals the water passage 19 on the primary side of the opening / closing section 50. The flange section 67 is separated from the abutment section 68 to the left.

[0047] For example, when the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 becomes higher than a predetermined value due to freezing of water, the force acting on the shaft 62 to the right increases. As a result, the shaft 62 moves to the right while contracting the elastic body 65. As a result of the movement of the shaft 62, the non-sealed portion 62B of the shaft 62 is positioned at the position of the sealing member 63 for the relief portion, as shown in FIG. 6. As a result, the pressure relief unit 60 opens the water passage 19 on the primary side of the opening / closing unit 50. This state is called the open state of the pressure relief unit 60. The water pressure in the water passage 19 on the primary side of the opening / closing unit 50 is released to the shaft hole 61 by the gap between the sealing member 63 for the relief portion and the non-sealed portion 62B, and becomes lower. At this time, the mixed water in the water passage 19 on the primary side of the opening / closing unit 50 leaks out to the shaft hole 61. The shaft hole 61 is connected to a gap formed inside the main body 10 by the through hole 66. The gaps formed inside the main body 10 are specifically a gap formed between the opening / closing part 50 and the first end member 29, a gap formed between the first end member 29 and the inner tube 24, a gap formed between the main body 10 and the first operating part 16, etc. These gaps communicate with the outside of the main body 10.

[0048] When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 is reduced by the pressure relief unit 60, the flange 67 is pushed to the left by the elastic force of the elastic body 65, and the shaft 62 moves to the left. This returns the pressure relief unit 60 to the closed state. The seal portion 62A of the shaft 62 comes into close contact with the relief unit seal member 63, and the water passage 19 on the primary side of the opening / closing unit 50 is sealed.

[0049] According to the embodiment configured as described above, the following effects are achieved. The water faucet device M includes a main body 10, a mixing section 40, an opening / closing section 50, and a pressure relief section 60. The main body 10 has a water passage 19 inside. The mixing section 40 is disposed inside the main body 10 and mixes hot and cold water that flows into the water passage 19. The opening / closing section 50 is disposed inside the main body 10 and opens and closes the water passage 19 downstream of the mixing section 40. The pressure relief section 60 is disposed inside the main body 10 and releases the water pressure when the water pressure in the water passage 19 on the primary side of the opening / closing section 50 reaches or exceeds a predetermined value. The pressure relief section 60 releases the water pressure to the internal space S of the main body 10. The internal space S is connected to the outside of the main body 10.

[0050] According to this configuration, the pressure relief section 60 releases water pressure into the internal space S of the main body 10, and therefore does not affect the appearance of the main body 10. Since the internal space S of the main body 10 is connected to the outside of the main body 10, excess water pressure in the water passage 19 on the primary side of the opening / closing section 50 is released to the outside of the main body 10. Therefore, excess water pressure can be released to the outside without affecting the appearance of the faucet device M.

[0051] An axially long space 10S is formed inside the main body 10. The mixing section 40, the opening / closing section 50, and the pressure relief section 60 are arranged on the axis L of the space 10S of the main body 10. With this configuration, excess water pressure can be released to the outside without affecting the appearance of the water faucet device M.

[0052] The pressure relief section 60 is disposed downstream of the mixing section 40. According to this configuration, excess water pressure downstream of the mixing section 40 can be released to the outside.

[0053] The pressure relief section 60 has a shaft 62 that moves in the axial direction of the space 10S of the main body section 10 when the water pressure in the water passage 19 on the primary side of the opening / closing section 50 reaches or exceeds a predetermined value. The shaft 62 moves toward the first opening 21. The pressure relief section 60 releases the water pressure by the movement of the shaft 62. With this configuration, the shaft 62 moves in the axial direction of the space 10S of the main body section 10, allowing the main body section 10 to be made compact.

[0054] The pressure relief portion 60 is provided inside the opening / closing portion 50. With this configuration, the main body portion 10 can be made compact.

[0055] The opening / closing unit 50 has an opening / closing valve body 52, a first operation part 16, and an opening / closing operation shaft 53. The first operation part 16 rotatably operates the opening / closing valve body 52. ​​The opening / closing operation shaft 53 connects the opening / closing valve body 52 and the first operation part 16. The pressure relief part 60 is formed on the opening / closing operation shaft 53. With this configuration, the main body 10 can be made compact.

[0056] <Embodiment 2> Next, a water faucet device M according to a second embodiment of the present disclosure will be described with reference to Figures 7 to 9. The water faucet device M of this embodiment differs from the first embodiment in that the mixer 87 is a moving member. Note that the same components as those in the first embodiment are given the same reference numerals and redundant explanations will be omitted.

[0057] As in the first embodiment, the faucet device M includes a main body 10, a discharge pipe 12, a shower elbow 13, a first crank leg 14, a second crank leg 15, a first operating section 16, and a second operating section 17. As in the first embodiment, the main body 10 has a double structure having an outer pipe 23 and an inner pipe 24. As in the first embodiment, a mixing section 87 and an opening / closing section 50 are arranged inside the main body 10.

[0058] The pressure relief section 80 is provided in the mixing section 87. The pressure relief section 80 has an elastic body 81, a relief section sealing member 85, a non-sealed surface 82, and a mixing section 87 as a moving member. As in the second embodiment, the mixing section 87 has a mixing case 41, a mixing valve body 42, a mixing operation shaft 43, and a second operation section 17. The mixing section 87 moves toward the second opening 22 when the water pressure in the water passage 19 on the primary side of the opening / closing section 50 reaches or exceeds a predetermined value. The second end member 26 moves together with the mixing section 87.

[0059] The elastic body 81 is sandwiched between the second end member 26 and the second fixed member 27. As shown in Fig. 8, the elastic body 81 is a wave spring in which a plate-shaped steel wire is wound in a spiral shape.

[0060] The second end member 26 has a first surface 83 perpendicular to the axis L. The second fixing member 27 has a second surface 84 perpendicular to the axis L. "Perpendicular" includes a state of being roughly perpendicular in addition to a state of being strictly perpendicular. The elastic body 81 expands and contracts in a direction parallel to the axis L between the first surface 83 and the second surface 84.

[0061] The escape portion seal member 85 is one of the multiple mixing portion seal members 28. The escape portion seal member 85 is disposed between the outer circumferential surface of the mixing case 41 and the inner circumferential surface of the inner pipe 24. The escape portion seal member 85 is attached to a seal groove 86 formed on the outer circumferential surface of the mixing case 41.

[0062] The non-seal surface 82 is formed on the inner peripheral surface of the inner pipe 24. The non-seal surface 82 is provided on the left side of the relief portion sealing member 85. The non-seal surface 82 is inclined with respect to the axis L. The non-seal surface 82 gradually becomes farther away from the outer peripheral surface of the mixing case 41 from the right side to the left side.

[0063] When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 is lower than a predetermined value, the pressure relief unit 80 closes the water passage 19 on the primary side of the opening / closing unit 50 as shown in FIG. 7. When the pressure relief unit 80 is in a closed state, the relief unit seal member 85 is in close contact with the inner peripheral surface of the inner pipe 24. When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 becomes higher than a predetermined value, the leftward force applied to the mixer 87 increases, and the mixer 87 moves to the left while contracting the elastic body 81. The relief unit seal member 85 moves to the left together with the mixer 87, and is positioned at the non-sealed surface 82 as shown in FIG. 9. As a result, the pressure relief unit 80 opens the water passage 19 on the primary side of the opening / closing unit 50. Due to the gap between the relief portion sealing member 85 and the non-sealed surface 82, the water pressure in the water passage 19 on the primary side of the opening / closing portion 50 is lowered by being released into the gap between the inner pipe 24 and the mixing case 41. The gap between the inner pipe 24 and the mixing case 41 is included in the internal space S.

[0064] When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 is reduced by the pressure relief unit 80, the mixing unit 87 is pushed to the right by the elastic force of the elastic body 81, and moves to the right. This causes the pressure relief unit 80 to return to the closed state. The relief unit seal member 85 comes into close contact with the inner circumferential surface of the inner pipe 24, and the water passage 19 on the primary side of the opening / closing unit 50 is sealed.

[0065] As described above, in this embodiment, as in the first embodiment, the pressure relief portion 80 releases water pressure into the internal space S of the main body 10, and therefore does not affect the appearance of the main body 10. Since the internal space S of the main body 10 is connected to the outside of the main body 10, excess water pressure in the water passage 19 on the primary side of the opening / closing portion 50 is released to the outside of the main body 10. Therefore, excess water pressure can be released to the outside without affecting the appearance of the faucet device M.

[0066] The pressure relief section 80 has a mixing section 87 that moves in the axial direction of the main body section 10 when the water pressure in the water passage 19 on the primary side of the opening / closing section 50 reaches or exceeds a predetermined value. The mixing section 87 moves toward the second opening 22. The pressure relief section 80 releases the water pressure by the movement of the mixing section 87. According to this configuration, the mixing section 87 moves in the axial direction of the space 10S of the main body section 10, so that the main body section 10 can be made compact, similar to the first embodiment.

[0067] <Embodiment 3> Next, a water faucet device M according to a third embodiment of the present disclosure will be described with reference to Figures 10 and 11. The pressure relief portion 90 of the water faucet device M of this embodiment differs from that of the second embodiment in that the relief portion sealing member 95 is a movable member. Note that the same components as those of the second embodiment are given the same reference numerals and redundant explanations will be omitted.

[0068] As in the first embodiment, the faucet device M includes a main body 10, a discharge pipe 12, a shower elbow 13, a first crank leg 14, a second crank leg 15, a first operating section 16, and a second operating section 17. As in the first embodiment, the main body 10 has a double structure having an outer pipe 23 and an inner pipe 24. As in the first embodiment, a mixing section 40 and an opening / closing section 50 are arranged inside the main body 10.

[0069] The pressure relief portion 90 includes a relief portion sealing member 95, an elastic body 81, an annular body 91, and a non-seal surface 82. As in the second embodiment, the relief portion sealing member 95 is one of the multiple mixing portion sealing members 28. The relief portion sealing member 95 is restricted from moving to the right by a stopper surface 92 formed on the mixing case 41. The stopper surface 92 is perpendicular to the axis L.

[0070] The elastic body 81 is a wave spring, similar to the second embodiment.

[0071] The annular body 91 is attached to the outer circumferential surface of the mixing case 41. The annular body 91 is disposed on the left side of the relief portion sealing member 95. The annular body 91 moves together with the relief portion sealing member 95 in the left-right direction.

[0072] The annular body 91 has a first surface 94 perpendicular to the axis L. The mixing case 41 has a second surface 93 perpendicular to the axis L. The elastic body 81 expands and contracts in a direction parallel to the axis L between the first surface 94 and the second surface 93.

[0073] The non-seal surface 82 is formed on the inner peripheral surface of the inner pipe 24, similarly to the second embodiment.

[0074] When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 is lower than a predetermined value, the pressure relief unit 90 closes the water passage 19 on the primary side of the opening / closing unit 50 as shown in FIG. 10. When the pressure relief unit 90 is in a closed state, the sealing member 95 for the relief unit is in close contact with the inner peripheral surface of the inner pipe 24. When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 becomes higher than a predetermined value, the leftward force applied to the sealing member 95 for the relief unit increases, and the sealing member 95 for the relief unit pushes the annular body 91 to the left. The sealing member 95 for the relief unit moves to the left together with the annular body 91 while compressing the elastic body 81, and is positioned at the position of the non-sealed surface 82 as shown in FIG. 11. As a result, the pressure relief unit 90 opens the water passage 19 on the primary side of the opening / closing unit 50. As in embodiment 2, the gap between the relief sealing member 95 and the non-sealed surface 82 causes the water pressure in the primary water passage 19 of the opening / closing section 50 to escape into the gap between the inner pipe 24 and the mixing case 41, thereby reducing the water pressure.

[0075] When the water pressure in the water passage 19 on the primary side of the opening / closing unit 50 is reduced by the pressure relief unit 90, the annular body 91 is pushed to the right by the elastic force of the elastic body 81, and moves to the right together with the relief unit sealing member 95. This returns the pressure relief unit 90 to the closed state. The relief unit sealing member 95 comes into close contact with the inner circumferential surface of the inner pipe 24, and the primary side water passage 19 of the opening / closing unit 50 is sealed.

[0076] As described above, in this embodiment, as in the second embodiment, the pressure relief portion 90 releases water pressure into the internal space S of the main body 10, and therefore does not affect the appearance of the main body 10. Since the internal space S of the main body 10 is connected to the outside of the main body 10, excess water pressure in the water passage 19 on the primary side of the opening / closing portion 50 is released to the outside of the main body 10. Therefore, excess water pressure can be released to the outside without affecting the appearance of the faucet device M.

[0077] The pressure relief section 90 has a relief section sealing member 95 that moves in the axial direction of the main body section 10 when the water pressure in the water passage 19 on the primary side of the opening / closing section 50 reaches or exceeds a predetermined value. The relief section sealing member 95 moves toward the second opening 22. The pressure relief section 90 releases the water pressure by the movement of the relief section sealing member 95. According to this configuration, the relief section sealing member 95 moves in the axial direction of the space 10S of the main body section 10, so that the main body section 10 can be made compact, similar to the second embodiment.

[0078] <Other embodiments> The present disclosure is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included within the technical scope of the present disclosure. (1) In the above embodiment, the first operating unit 16 and the second operating unit 17 are rotated. However, the present invention is not limited to this and the first operating unit and the second operating unit may be pushed. (2) In the above embodiment, the water faucet device M can select either water spouting from the water outlet pipe 12 or water spouting in a shower. However, the water faucet device may be one that only spouts water from the water outlet pipe, or one that only spouts water in a shower. (3) In the above embodiment, the main body 10 is exposed to the outside. However, this is not limiting, and the main body may be covered with a cover member. (4) In the above-mentioned second and third embodiments, the elastic body 81 is a wave spring. However, the elastic body is not limited to this, and may be a coil spring, a disc spring, or the like, or may be a wave spring having a C-ring shape. (5) In the above embodiment, the main body 10 has a double structure including the outer tube 23 and the inner tube 24. However, the main body is not limited to this and may be formed of a single tube. (6) In the above embodiment, the faucet device M is a mixer faucet that is attached to a wall of a bathroom, etc. However, the faucet device is not limited to this, and may be one that is attached to, for example, a kitchen or washstand. (7) In the above embodiment, the pressure relief portion 60 relieves the water pressure of the water passage 19 into the internal space S of the main body 10. However, the present invention is not limited to this, and the pressure relief portion may relieve the water pressure directly into the external space of the main body. (8) In the above embodiment, the outer shape of the main body 10 is exemplified. However, the outer shape of the main body may be any shape as long as a long space is formed inside the main body. For example, the outer shape of the main body may be a flat rectangular shape. [Explanation of symbols]

[0079] L...axis, M...faucet device, S...internal space, 10...main body, 10S...space, 16...first operating section (operating section), 19...water passage, 21...first opening (opening), 22...second opening (opening), 40...mixing section, 50...opening / closing section, 52...opening / closing valve body (cylinder valve body), 53...opening / closing operation shaft (rotating operation shaft), 60, 80, 90...pressure relief section, 62...shaft (moving member), 87...mixing section (moving member), 95...sealing member for relief section (moving member)

Claims

1. A main body having a water passage therein; A mixing section disposed inside the main body section and mixing the hot and cold water flowing into the water passage; An opening / closing section that is disposed inside the main body and opens and closes the water passage downstream of the mixing section; a pressure relief portion that is disposed inside the main body and releases the water pressure when the water pressure in the water passage reaches or exceeds a predetermined value; The pressure relief portion releases the water pressure to an internal space formed inside the main body, A faucet device, wherein the internal space is in communication with the outside of the main body.

2. A main body having a water passage therein; A mixing section disposed inside the main body section and mixing the hot and cold water flowing into the water passage; An opening / closing section that is disposed inside the main body and opens and closes the water passage downstream of the mixing section; a pressure relief portion that is disposed inside the main body and releases the water pressure when the water pressure in the water passage reaches or exceeds a predetermined value; An axially long space is formed inside the main body, A water faucet device in which the mixing section, the opening / closing section, and the pressure relief section are arranged on the axis of the long space of the main body section.

3. The water faucet device according to claim 1 , wherein the pressure relief section is disposed downstream of the mixing section.

4. An axially long space is formed inside the main body, A faucet device as described in any one of claims 1 to 3, wherein the pressure relief section has a movable member that moves in the axial direction of the long space when the water pressure of the water passage exceeds a predetermined value, and the water pressure is relieved by moving the movable member.

5. A long space is formed in the inside of the main body in the axial direction, and an opening is formed on one end side of the main body in the axial direction, A faucet device as described in any one of claims 1 to 3, wherein the pressure relief section has a movable member that moves toward the opening when the water pressure in the water passage reaches or exceeds a predetermined value, and the water pressure is relieved by the movement of the movable member.

6. The water faucet device according to claim 1 , wherein the pressure relief portion is provided on the inside of the opening and closing portion.

7. The opening / closing unit includes a cylinder valve body, an operating unit that rotatably operates the cylinder valve body, and a rotary operating shaft that connects the cylinder valve body and the operating unit, The water faucet device according to claim 1 , wherein the pressure relief portion is formed on the rotating operation shaft.

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