JP3394935B2 - Water outlet - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water outlet which can supply water to a water supply hose of equipment such as a water purifier, a dishwasher, a water heater and a washing machine, and more particularly, to a cold water outlet. Water supply outlets used in the area. 2. Description of the Related Art As a conventional water outlet, a housing, a faucet body provided in the housing and having an inflow port, an outflow port, and a valve body, and a water supply outlet from the faucet body are provided. A flow rate adjustment handle for adjusting the flow rate of water, a joint part fixed to the outlet, and having a detachable fitting member for a downstream water supply hose, provided at the inlet, and a backflow from the downstream side. And a non-return valve for preventing the pressure. In the conventional water outlet having the above-mentioned structure, for example, when a water supply hose of a water purifier is connected to the joint, the handle of the water outlet is operated to move the water purifier from the water outlet. The amount of water supplied to the can be adjusted. And, for example, when water was supplied to the water purifier by connecting the water supply hose of the water purifier to the existing water faucet in the kitchen, there was a problem that the existing water faucet and the water purifier could not be used at the same time. However, such a problem can be solved by using the conventional water outlet having the above-described configuration. [0004] By the way, in a cold region or the like, when the temperature becomes low and water remaining inside a faucet such as a water supply outlet freezes, the faucet is damaged. for that reason,
In order to prevent the occurrence of such breakage, in cold regions or the like, work is generally performed to drain water remaining in the faucet before going to bed or the like from the upstream side of the faucet. However, when the conventional water outlet having the above configuration is used in a cold region or the like, the water in the water outlet located downstream of the check valve is not checked even when the above-described drainage operation is performed. Since the valve prevents the water from flowing upstream, the water remains in the water outlet, and the water remaining in the water outlet freezes due to a decrease in temperature, and the water outlet is damaged. Was. [0005] Therefore, when the conventional water outlet having the above configuration is used in a cold region or the like, it is necessary to remove the check valve in advance. However, the conventional water outlet with the check valve removed as described above cannot prevent the backflow of water from the downstream side during normal use. For example, when a washing machine is connected to the downstream side of the water outlet, the sewage flowing backward from the washing machine into the water outlet flows directly upstream and enters another faucet or the like. There was a problem. [0007] The present invention has been made in consideration of the above-mentioned matter, and the object thereof can be used even in a cold region.
Another object of the present invention is to provide a water outlet that can reliably prevent backflow of water even during normal use. [0008] In order to achieve the above object, a water outlet according to the present invention is provided with a housing and a faucet provided in the housing and having an inflow port, an outflow port and a valve body. A main body, a flow adjustment handle for adjusting a flow rate of water that can be sent out from an outlet of the faucet main body, a transmission mechanism for transmitting a rotation operation of the flow adjustment handle to the valve body, and A joint part fixed to the outlet of the stopper body and having a detachable joint member provided at the upstream end of the water supply hose, and a release type provided at the inlet to prevent backflow of water from the downstream side. and a check valve, which is capable of releasing the prevention of the reverse flow of water by the release type check valve water
A road outlet, wherein the release type check valve is connected to the outlet.
Check valve body 26 provided in the inlet, and the check valve body
And a release mechanism 27 that can slide 26 downstream.
And the release mechanism 27 is
And located upstream of the check valve main body 26.
Abuts the tapered upstream end 26a
Contact member 31 having a possible flange portion 31a at its tip
Formed on the outer periphery of the central portion 31e of the contact member 31
Cylinder having a female thread portion 32b engaged with a male thread portion
The contact member 31 is formed from a tip end side.
In order, the flange portion 31a, the column portion 31b, and the cylinder
Abutment from outside on a valve seat portion 32a provided in the member 32.
A seal having a seal portion 31c that can be
Handle portion 31d, a center portion 31e, and a handle portion 31f.
And a space 31h provided inside the central portion 31e.
But communicates with the opening 31i was made form the outer surface of the central portion 31e
Is characterized in that is (claim 1). Therefore, the release mechanism 27 in the initial state is released.
To remove the handle, the handle 31f is moved around its axis.
All you have to do is rotate it. Rotation operation of this handle 31f
As a result, the entire contact member 31 becomes similar to the handle portion 31f.
Rotating and perpendicular to the axial direction of the check valve body 26
Will slide in the opposite direction. And the handle part 31f
Is rotated, for example, counterclockwise (see FIG. 1),
The flange 31a is a member belonging to the axis of the upstream end 26a.
The entire contact member 31 slides so as to approach a straight line
Eventually, the flange portion 31a will come into contact with the upstream end portion 26a.
Swell. Flange 31 for this upstream end 26a
The check valve body 26 is urged downstream by the contact of a.
Between the seal portion 26b and the valve seat 28.
A gap will be formed. That is, rather than the inlet
Solution to prevent downstream water from flowing back to the upstream side
Release machine with backflow prevention function of release check valve released
It will be released by the structure 27. In addition, said check
The upstream end 26a of the valve body 26 is formed in a tapered shape.
Therefore, the downstream side of the check valve main body 26 by the contact member 31
The urging to the side is such that the flange portion 31a of the contact member 31 is located upstream.
It becomes larger as it approaches the axis of the end 26a,
Accordingly, the check valve body 26 slides further downstream.
You. To return the release mechanism 27 in the release state to the initial state
Is to set the release mechanism 27 in the initial state to the release state.
It is only necessary to perform the operation reverse to the operation of. With the above configuration, it is possible to provide a water outlet that can be used in cold regions and that can reliably prevent backflow of water even during normal use. An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are front views schematically showing the configuration of a water outlet D according to a first embodiment of the present invention, and FIGS. 2 and 3 show the configuration of the water outlet D. FIG. FIG. 3 is a schematic longitudinal sectional view and an exploded perspective view. The water outlet D is provided with a housing 4 in which two vertically arranged openings 1 and 2 are formed in a front part 3, and provided in the housing 4, and an inlet 5 and an outlet 6 for water or hot water and a cartridge type. A water faucet main body 7 having a valve body 8 and a flow rate adjusting operation member arranged at one opening 1 of the housing 4 for adjusting the flow rate of water that can flow out of the outflow port 6 of the faucet main body 7. A dial-type flow rate adjusting handle 9, a transmission mechanism 10 for transmitting a turning operation of the flow rate adjusting handle 9 to the valve body 8,
The water supply hose H is fixed to the outflow port 6 of the faucet main body 7 and disposed at the other opening 2 of the housing 4.
4 (see FIG. 4).
(See FIG. 1), and a detachable joint portion 11;
A connection release mechanism 12 for releasing the connection of the joint member H ′ to the connection member, and a release check valve 13 provided at the inflow port 5 for preventing backflow of water from a downstream side of the inflow port 5. The prevention of backflow of water by the release check valve 13 can be released. The openings 1 and 2 are formed so as to be substantially circular in a front view. The front portion 3 comprises a central portion 3a in which the openings 1 and 2 are formed, and a frame 3b for holding the central portion 3a. The housing 4 has a substantially rectangular parallelepiped shape, and includes the front portion 3 and a housing body 14 to which the front portion 3 is detachable. At the inflow port 5, for example, a branch water supply pipe S (not shown) branched from a water supply pipe (not shown) provided for supplying water or hot water to an existing faucet (such as a hot and cold water mixing tap). 9 ( see FIG. 9 ). The faucet main body 7 is connected to the housing main body 1.
The water or hot water from a water supply pipe such as the branch water supply pipe is introduced into the inside from the inflow port 5 and sent out from the outflow port 6 to the downstream side. The cartridge type valve 8 is inserted into the faucet main body 7 and has a cylindrical body 15 rotatable around its axis. Then, the water that has reached the inside of the faucet main body 7 from the inflow port 5 is supplied to the inside of the cylindrical body 15 and the cylindrical body 1.
5 is formed on the side wall of the tube 5 and is sent out from the outlet 6 after passing through a through hole (not shown) communicating with the outlet 6. Since the size of the overlapping portion between the outlet 6 and the through hole changes, the flow rate of water that can be sent from the faucet body 7 to the outlet 6 also changes. Therefore, by performing the turning operation of the cylindrical body 15, the flow rate of the water sent out from the outlet 6 can be adjusted. The transmission mechanism 10 is a mechanism provided for rotating the cylindrical body 15 using the flow rate adjusting handle 9. The transmitting mechanism 10 projects above the faucet main body 7, and And a cylindrical portion 17 having an inner serration that meshes with an outer serration formed on the outer periphery of the spindle shaft 16.
And a pinion portion 1 connected to the outer periphery of the cylindrical portion 17.
8 and a gear member 20 connected to the rear side of the flow rate adjusting handle 9 and meshing with the pinion 18 of the rotating member 19. Water supply hose H connected to the joint 11
As the joint member H 'provided at the upstream end of the above, for example, the joint portions 3 and 4 described in the specification and drawings of Japanese Patent Application No. 11-010193 are used. The water supply hose H
Downstream, for example, water purifiers, dishwashers, water heaters,
Devices such as a washing machine are connected. FIG. 4 is a longitudinal sectional view schematically showing the structure of the disconnection mechanism 12 for the water outlet D. The connection release mechanism 12 includes one end portions 22a, 22a capable of pushing the flow rate adjusting handle 9 forward and a joint member H ′ of a water supply hose H connected to the joint portion 11.
The other end 22b, which can be pushed backward by
Swing lever 22 having a lock release button 22b
3 and a lock mechanism 25 comprising lock means 24. In order to release the connection of the coupling member H 'to the coupling portion 11 using the connection release mechanism 12, the flow rate adjusting handle 9 is closed, and then the lock release button 23 is pressed. It is only necessary to push the flow rate adjustment handle 9 rearward. In the state where the joint member H ′ of the water supply hose H is not connected to the joint portion 11,
Due to the bias of the spring 22c, the one end portions 22a, 22a
Is moved backward, and the other end portions 22b, 22b are brought forward (hereinafter, referred to as an initial state). When the swing lever 22 is in the initial state, the flow rate adjusting handle 9 cannot rotate, and the outflow port 6 of the faucet main body 7 is not rotated.
No water is delivered from The swing lever 22 is connected to the joint 11
When the joint member H 'of the water supply hose H is connected to
The other end portions 22b, 22b are pushed rearward by the joint member H ', whereby the one end portions 22a, 22a are brought forward (hereinafter, referred to as a connection state). When the swing lever 22 is in this connection state, the flow rate adjusting handle 9 can be turned, and the outflow port 6 of the faucet body 7 can be rotated.
From the water. The lock release button 23 is formed on the front part 3. And the lock means 24 is
When the swing lever 22 is in the connected state, it has an arm 24a located on the rear side of the flow adjustment handle 9, and this arm 24a prevents the flow adjustment handle 9 from retracting to the rear side. The joint member H ′ is locked so that the joint member H ′ does not come off the joint portion 11 even when the flow adjustment handle 9 is pushed backward. By pressing the lock release button 23, the arm 24a of the lock means 24 located on the rear side of the flow rate adjusting handle 9 retreats, and the lock of the joint member H 'by the lock means 24 is released. FIG. 5 is a longitudinal sectional view schematically showing the structure of the release check valve 13. As shown in FIG. The release type check valve 13 includes:
It comprises a check valve main body 26 provided in the inflow port 5 and a release mechanism 27 capable of sliding the check valve main body 26 downstream. The check valve main body 26 is arranged in order from the upstream side.
The upstream end portion 26 formed in a tapered shape that becomes thinner toward the upstream side.
a substantially cylindrical large-diameter portion 26c formed on the outer periphery with a seal portion 26b formed on the outer periphery of the seal portion 26b, which can be brought into contact with a valve seat 28 provided in the inflow port 5 from the downstream side;
And a downstream portion 26d guided by a guide member 29 provided therein, and is constantly urged upstream by an elastic member 30 such as a spring. The seal portion 26b is made of, for example, an O-ring. The check valve main body 26 having the above-described structure is used to pass water flowing from the upstream side of the inlet 5 and not to flow water flowing from the downstream side of the inlet 5. In addition, the check valve main body 26 prevents the water on the downstream side of the inflow port 5 from flowing backward and flowing toward the upstream side of the inflow port 5. The release mechanism 27 is connected to the check valve main body 26.
A contact member 31 having a flange portion 31a at its tip, which is disposed on the upstream side and can contact the upstream end portion 26a of the check valve body 26, and formed on the outer periphery of a central portion 31e of the contact member 31. Female thread portion 32b that meshes with the formed male thread portion
And a cylindrical member 32 having The contact member 31 includes a flange portion 31a, a cylindrical portion 31b, and the cylindrical member 32 in this order from the distal end side.
Seal portion 31 having a seal portion 31c on the outer periphery capable of abutting from outside on a valve seat portion 32a provided therein.
d, a central portion 31e, and a handle portion 31f. The seal portion 31c is made of, for example, an O-ring. The handle 31f has a substantially cylindrical shape and can be rotated around its axis. As shown in FIG. 2, an opening 3 is formed on the outer surface of the handle portion 31f.
1g is provided, and the opening 31g is
It communicates with a space 31h provided from the inside of f to the inside of the central portion 31e, and this space 31h communicates with an opening 31i formed on the outer surface of the central portion 31e. With such a configuration, the seal portion 3
Even if water enters between the contact member 31 and the cylindrical member 32 through a gap between the valve seat 1c and the valve seat 32a, the opening 3
It becomes possible to extract from 1 g. The cylindrical member 32 is connected to the check valve main body 26.
A member provided from the side wall of the inflow port 5 further upstream to the outside thereof, and the inner wall thereof has the valve seat portion 32a.
And the female screw portion 32b are formed. FIGS. 6A and 6B are explanatory views for schematically showing the operation of the release type check valve 13. FIG. Next, the operation of the release check valve 13 having the above configuration will be described. FIG. 6A shows the state of the check valve body 26 when the release mechanism 27 is in the initial state. At this time, the flange portion 31a of the contact member 31 is located upstream of the check valve body 26. Because it is at a position where it does not abut the end 26a,
The check valve main body 26 is in a state where it can exhibit the function of preventing the above-described backflow. FIG. 6B shows the state of the check valve body 26 when the release mechanism 27 is in the released state. In order to release the release mechanism 27 in the initial state, it is only necessary to rotate the handle 31f about its axis. By rotating the handle 31f, the entire contact member 31 rotates in the same manner as the handle 31f, and the check valve body 26
Will slide in the direction perpendicular to the axial direction of. Then, the handle 31f is moved, for example, counterclockwise (FIG. 1).
), The entire contact member 31 slides so that the flange 31a approaches the straight line to which the axis of the upstream end 26a belongs, and the flange 31a comes into contact with the upstream end 26a. Be in touch. This upstream end 26a
The check valve body 26 urged by the elastic member 30 to the upstream side is urged to the downstream side by the contact of the flange portion 31a against the
A gap is formed between the valve seat 28 and the valve seat 28. That is, the backflow prevention function of the release type check valve 13 for preventing the water downstream of the inflow port 5 from flowing back to the upstream side is released by the release mechanism 27 in the released state. The upstream end 26 of the check valve body 26
a is formed in a tapered shape, so that the contact member 31
Of the check valve body 26 to the downstream side by the contact member 3
As the one flange portion 31a approaches the axis of the upstream end portion 26a, the size increases, and the check valve body 26 slides further downstream accordingly. In order to return the release mechanism 27 in the release state to the initial state, it is only necessary to perform an operation reverse to the operation for bringing the release mechanism 27 in the initial state into the release state. By using the release check valve 13 having the above structure, the check valve preventing function of the check valve main body 26 can be arbitrarily set and released. Next, the operation of the water outlet D having the above configuration will be described. A state in which the joint member H ′ of the water supply hose H is not connected to the joint section 11 (see FIG. 4).
In this case, the swing lever 22 is in the initial state, and the flow adjustment handle 9 in the closed state cannot be rotated. Therefore, an accident such as an unexpected discharge of water from the outlet 6 due to an operation error or the like can be reliably prevented. When the joint member H 'is connected to the joint portion 11, the swing lever 22 is in the connected state, and the turning operation of the flow rate adjusting handle 9 can be performed. The flow rate of the water to be sent out can be adjusted using the flow rate adjustment handle 9. In order to release the connection of the joint member H 'to the joint portion 11, it is only necessary to first close the flow adjustment handle 9, press the lock release button 23, and then push the flow adjustment handle 9 backward. . With such a configuration, the joint member H 'does not come off from the joint portion 11 when water is being sent out from the outlet 6, so that a water leak accident or the like can be prevented beforehand. FIGS. 7, 8 and 9 are a front view, a cross-sectional view and an exploded perspective view schematically showing the structure of the installation of the water outlet D. Next, a method of mounting the water outlet D having the above configuration will be described. In the water outlet D, the front part 3 of the housing 4 has a wall W
Is disposed in the wall W so as to be substantially flush with the front surface of the stud, and is directly attached to the stud P. Housing body 14 of water outlet D
Is cut off on three sides of the side wall of the housing body 1
4, a bent portion 33 is formed which is bent inward and has a substantially U-shape in plan view. The bent portion 33 has a hole 33 ′ through which a screw 34 can be inserted. Then, in order to attach the water outlet D to the stud P, the side wall of the housing 4 where the bent portion 33 is formed is brought into contact with the stud P, and is fixed with a screw 34 inserted through a hole 33 '. In addition, since the hole 33 ′ is formed on the inclined surface on the front side of the bent portion 33, the mounting operation of the housing body 14 using the screw 34 can be easily performed. Further, a scissor plate 35 which can be freely positioned in the front-rear direction is provided on the side wall of the housing body 14, and the wall W is sandwiched between the scissor plate 35 and the frame 3b of the front portion 3. Is possible. To attach the front part 3 to the housing body 14 attached to the stud P as described above,
The rear part of the frame 3b, through which the wall W is inserted from the front side of the wall W, is fitted into the housing body 14, the wall W is sandwiched between the scissor plate 35 and the frame 3b, and then screwed as appropriate. It is only necessary to attach the central portion 3a of the front portion 3 to the frame 3b. When the water outlet D is attached only to the wall W, the water supply hose H is connected to the water outlet D.
Since the removal of the wall W leads to an operation of pushing and pulling the wall W, especially when the wall W is thin or not strong, the wall W quickly deteriorates. The water outlet D becomes rattled, and a gap is formed between the wall W and the water outlet D, and water or smoke may enter there. Stud P and wall W
And the water outlet D is attached to the wall W
As compared with the case where the camera is attached only to the camera, the camera can be held in a state where there is no play, and the invasion of water, smoke, and the like can be reliably prevented. The installation of the water outlet D is as follows.
The side wall of the housing body 14 may be fixed to the studs P, and the upper wall of the housing body 14 may be fixed to other studs P by screws or the like. (Not shown), and may be indirectly attached to the stud P. Water outlet D having the above structure
Can be used even in cold regions, and can reliably prevent backflow of water even during normal use. It should be noted that the water outlet D having the above structure may be configured without the disconnection mechanism 12. Further, the number of the openings is not limited to two, and may be three or more. [0048] Figure 10 is a longitudinal sectional view schematically showing the structure of a water outlet D ₂ according to the second embodiment of the present invention. Members having the same structure as those shown in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Water outlet D ₂ is different from the water outlet D of the first embodiment, the release-type check valve 13 is different in that they are lockable. The handle 31f of the water outlet D ₂ is
Inside, it has a long groove 36 formed in the axial direction thereof, and a wide groove 37 formed so as to be orthogonal to the long groove 36. The wide groove 37 has an elastic member 38 such as a spring fixed to the bottom wall of the wide groove 37, and a frame member 39 urged in the opening direction of the wide groove 37 by the elastic member 38. The frame member 3 urged by the elastic member 38
9 and a locking member 40 biased to the outside of the handle 31f. When the handle portion 31f is in the locked state, the locking member 40 urged by the frame member 39 is in a state of protruding outside the handle portion 31f. locked to the locking groove 40 'formed on an appropriate position of the outlet D _2, the grip portion 31f has a configuration in which a non-rotatable by the locking. When the lock release key 41 having an insertion portion 41a which can be inserted into the long groove 36 is inserted into the long groove 36, the insertion portion 41a passes through the through hole of the frame member 39. The frame member 39
Is urged toward the bottom of the wide groove 37 against the urging of the elastic member 38, and the urging causes the locking member 40 projecting outside the handle 31f to retract into the handle 31f. , The lock to the lock member 40 is released, and the handle 31f can be rotated. That is, the lock of the handle portion 31f that has been locked is released. In order to lock the unlocked handle portion 31f again, the locking member 40 must be locked by the locking groove 4f.
It is only necessary to pull out the lock release key 41 from the long groove 36 after rotating the handle portion 31f so as to come to a position facing 0 '. The water outlet D _{2 having the} above structure
In addition, in addition to the effects of the first embodiment, it is possible to obtain an effect that the backflow prevention function of the release check valve 13 can be prevented from being released due to mischief or the like. According to the present invention having the above-described structure, there is provided a water outlet which can be used even in a cold region and which can reliably prevent backflow of water even during normal use. Can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view schematically showing a configuration of a water outlet according to a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view schematically showing the configuration of the embodiment. FIG. 3 is an exploded perspective view schematically showing the configuration of the embodiment. FIG. 4 is a longitudinal sectional view schematically showing a configuration of a disconnection mechanism in the embodiment. FIG. 5 is a longitudinal sectional view schematically showing a configuration of a release type check valve in the embodiment. FIGS. 6A and 6B are explanatory diagrams schematically showing the operation of the release type check valve. FIG. 7 is a front view schematically showing a mounting configuration of the embodiment. FIG. 8 is a cross-sectional view schematically showing a mounting configuration of the embodiment. FIG. 9 is an exploded perspective view schematically showing a mounting configuration of the embodiment. FIG. 10 is a longitudinal sectional view schematically showing a configuration of a water outlet according to a second embodiment of the present invention. [Description of Signs] 4 ... Housing, 5 ... Inlet, 6 ... Outlet, 7 ... Faucet body, 8 ... Valve, 9 ... Flow adjustment handle, 10 ... Transmission mechanism, 11 ... Coupling part, 13 ... Release type Check valve, D: water outlet, H: water supply hose, H ': coupling member.

Claims (1)

(57) [Claim 1] A housing, a faucet main body provided in the housing and having an inflow port, an outflow port and a valve body,
A flow adjustment handle for adjusting the flow rate of water that can be sent out from the outlet of the faucet body, a transmission mechanism for transmitting a rotation operation of the flow adjustment handle to the valve body, A joint portion fixed to the outlet and having a detachable joint member provided at the upstream end of the water supply hose, and a release check valve provided at the inlet and for preventing backflow of water from the downstream side A water outlet capable of releasing prevention of backflow of water by the release type check valve.
Thus, the release type check valve is provided in the inflow port.
Check valve body 26 and slides this check valve body 26 downstream.
And a release mechanism 27 capable of
The mechanism 27 is disposed upstream of the check valve main body 26.
And a tapered shape that becomes thinner toward the upstream side of the check valve body 26.
3 that can contact the upstream end 26a formed in the
A contact member 31 having a leading end 1a;
Meshes with the external thread formed on the outer periphery of the central portion 31e
A cylindrical member 32 having a female screw portion 32b,
The abutting member 31 is, in order from the tip side, a flange portion 31.
a, a cylindrical portion 31b, and the cylindrical member 32.
That can be brought into contact with the valve seat 32a from outside
A sealing portion 31d having an outer periphery with a
31e and a handle portion 31f.
The space 31h provided inside is the outer surface of the central portion 31e.
It is communicated with an opening formed 31i tap outlet, characterized in Rukoto.