JP2005282024A - Hot-cold water mixing faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot-cold water mixing faucet superior in work efficiency allowing connection of a flexible pipe to a mixed water supply pipe in a single operation by the small number of part items. <P>SOLUTION: This hot-cold water mixing faucet 1 has the flexible pipe 4 for extractably connecting the mixed water supply pipe 2a and a shower head 3 arranged on the downstream side of a faucet body 2; and is constituted so as to communicate and connect a first plug 21 and a second plug 22 via a joint 30 having a simple attaching-detaching mechanism, by respectively arranging the first plug 21 and the second plug 22 in a downstream end part of the mixed water supply pipe 2a and an upstream end part of the flexible pipe 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hot and cold water mixing faucet.

  For example, the hot and cold water mixing tap 50 shown in FIG. 3 includes a faucet body 52 that appropriately mixes hot water and water flowing in from the hot water supply pipe H and the water supply pipe C, and supplies the hot and cold mixed water to the mixed water supply pipe 51. A shower head 53 that discharges mixed water supplied from the main body 52 or raw water made of water, and a flexible pipe 54 that connects the shower head 53 and the mixed water supply pipe 51 so that the shower head can be pulled out. have.

  And the connection of the mixed water supply pipe | tube 51 and the flexible pipe | tube 54 is as follows. That is, a threaded portion (not shown) is formed at the upstream end of the flexible tube 54, and after the connection fitting 55 is screwed into the threaded portion, the connection fitting 55 is provided on the downstream side of the mixed water supply pipe 51. The clip 59 is inserted into the inner diameter enlarged portion 58 of the relay pipe 57, and the clip 59 is placed in a state where the flange 58 formed at the tip of the relay pipe 57 and the flange 59 formed at the tip of the connection fitting 55 are in contact with each other. By inserting the flanges 58 and 59 so that the flanges 58 and 59 are sandwiched, the connection fitting 55 is prevented from being detached from the relay pipe 57. Thereafter, the drop-off prevention cover 60 is externally attached to the clip 59 through the prevention pieces 61 and 61 provided on the drop-off prevention cover 60 over the opening ends b and b of the clip 59 from above. Thereby, the prevention pieces 61 and 61 can contact the outer peripheral surfaces of the opening ends b and b, respectively, so that the opening ends b and b can be prevented from opening outward, and the clip 59 does not easily fall off.

  However, since the connection fitting 55 is screwed into the threaded portion of the flexible tube 54, there is a risk that water stop failure may occur due to insufficient screwing, and the flexible tube 54 is free from the mixed water supply tube 51 by the screwing. In other words, the flexible tube 54 may be twisted. If the flexible tube 54 is used while being twisted, the flexible tube 54 may be damaged in the worst case. Furthermore, after screwing, it is necessary to assemble the clip 59 and the drop-off prevention cover 60, and the connecting operation of the mixed water supply pipe 51 and the flexible pipe 54 is extremely complicated. In addition, the number of parts was large.

  The present invention has been made in consideration of the above-mentioned matters, and its purpose is to have a small number of parts and to connect the mixed water supply pipe and the flexible pipe with a single touch, and also to have a good workability. To provide a stopper.

  In order to achieve the above object, a hot and cold water mixing faucet according to the present invention includes a hot water and water mixing faucet provided with a mixed water supply pipe provided on the downstream side of the faucet body and a flexible pipe to which a shower head can be pulled out. , A first plug and a second plug are provided at the downstream end of the mixed water supply pipe and the upstream end of the flexible pipe, respectively, and the first plug and the second plug are connected via a joint having a simple attachment / detachment mechanism. It is configured to be connected in a movable manner.

  In the present invention, the first plug is provided at the downstream end of the mixed water supply pipe, the second plug is provided at the upstream end of the flexible pipe, and the first plug and the second plug are connected to each other via a joint. Therefore, the mixed water supply pipe and the flexible pipe can be connected with the number of parts of the first and second plugs and the joint. Moreover, in this invention, since a 1st plug and a 2nd plug are connected and connected via the coupling | joint with a simple attachment / detachment mechanism, while being able to connect a mixed water supply pipe and a flexible pipe by one touch, workability | operativity can be improved. In addition, since the first plug and the second plug are configured to be rotatably connected through a joint having a simple attachment / detachment mechanism, the flexible pipe can be free from the mixed water supply pipe, There is no risk of twisting the flexible tube.

  Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited thereby.

1 and 2 show an embodiment of the present invention.
1 and 2, for example, a hot water mixing tap 1 with a water purification function for a kitchen appropriately mixes hot water and water flowing in from a hot water supply pipe H and a water supply pipe C, and supplies the hot water mixed water to the mixed water supply pipe 2a. Mixing plug main body (water faucet main body) 2, mixed water supplied from the mixing plug main body 2, or raw water made of water, a shower head 3 for discharging the purified water, the shower head 3 and a mixed water supply pipe 2a And a flexible tube 4 for connecting the two. 2b and 2c are supply pipes connected to the hot water supply pipe H and the water supply pipe C, respectively, and 2d is an operation lever for adjusting the mixing ratio of hot water supplied to the mixed water supply pipe 2a and the amount of water discharged including water stoppage. It is. The mixing plug body (water faucet body) 2 is mounted on the mounting surface portion 16 via a cylindrical mounting member 17 that is fixed after being fitted into one through hole 16a provided in the mounting surface portion 16 of the sink. The supply pipes 2b and 2c and the mixed water supply pipe 2a are inserted into the mounting member 17. The shower head 3 is supported by a shower holder 3a through which the flexible tube 4 can be inserted, and can be pulled out together with the flexible tube 4 from the tip 3b of the shower holder 3a. The shower holder 3 a is attached to a cylindrical rotating lid F that covers the lower part of the mixing plug body 2. The shower head 3 is made of a synthetic resin grip 11 having a cylindrical water purification cartridge (not shown) removably incorporated therein and a synthetic resin connected to the downstream end of the grip 11 by screwing. And the spout main body 12. The water purification cartridge has, for example, a high performance antibacterial fiber activated carbon filter.

Hereinafter, a characteristic configuration will be described.
21 is a substantially cylindrical first plug provided at the downstream end of the mixed water supply pipe 2 a, and 22 is a substantially cylindrical second plug provided at the upstream end of the flexible pipe 4. The second plug 22 has the same structure. That is, on the outer peripheral surface of the first plug 21, a seal portion 23 having a flat outer periphery in order from the tip side, a taper portion 24 whose outer diameter increases as the distance from the seal portion 23 increases, a lock groove portion 25, and a seal portion 23. A larger diameter fitting portion 26 and a larger diameter contact portion 27 than the fitting portion 26 are formed. The plug 21 is not limited to being connected to the mixed water supply pipe 2a. For example, the plug 21 may be integrally formed at the downstream end of the mixed water supply pipe 2a.
Further, on the outer peripheral surface of the second plug 22 having the same structure as that of the first plug 21, a seal portion 23 having a flat outer periphery in order from the tip side, and a tapered portion 24 whose outer diameter increases as the distance from the seal portion 23 increases. In addition, a fitting portion 26 having a larger diameter than the lock groove portion 25 and the seal portion 23 and a contact portion 27 having a larger diameter than the fitting portion 26 are formed.

Reference numeral 30 denotes a synthetic resin joint that rotatably connects the first plug 21 and the second plug 22 and has a substantially cylindrical joint body 30a. The joint body 30a has a simple attachment / detachment mechanism, and has simple connection means 31 and 32 with the first plug 21 and the second plug 22 respectively having the same structure on one side and the other side thereof.
Hereinafter, the simple connection means 31 provided on one side of the joint 30 will be described.
The simple connection means 31 has a lock part 33 for engaging with the lock groove part 25 and a sliding member 35 on the joint body 30a. The lock portion 33 is held by the through-hole 34 and the through-hole 34, and is urged to the inside of the joint 30 by the projecting portion 36 of the sliding member 35 when locked, and the recessed portion of the sliding member 35 when not locked. And a lock ball 38 retracting to 37. The sliding member 35 of the simple connecting means 31 is substantially cylindrical and can slide in the axial direction of the joint body 30a along the outer wall A of the joint body 30a. It is urged to the tip side. That is, the protruding portion 36 is formed on the inner peripheral surface of the sliding member 35 toward the inner side, and the inner peripheral surface of the protruding portion 36 is formed on the distal end side of the protruding portion 36. The recessed portion 37 is formed so as to be outside the inner peripheral surface. Then, one end portion of the spring 39 that constantly urges the sliding member 35 toward one end side is in contact with the side surface 36a opposite to the recessed portion 37 of the protruding portion 36. On the other hand, the simple connection means 31 has an outward flange 42 that prevents the sliding member 35 from coming out of the joint 30 by contacting the end surface of the projecting portion 36 on the outer peripheral surface of the tip portion on one side thereof, The sliding member 35 has an inward flange 43 in contact with the flange 42 at the protruding portion 36. Reference numeral 44 denotes a notch provided in the joint 30, which is provided in the number of the lock balls 38 along the axial direction of the joint body 30 a and at equal intervals. The notch 44 has the through-hole 34 at substantially the center in the axial direction. When the sliding member 35 is fitted into the joint main body 30a, it is necessary to reduce the outer diameter of the joint main body 30a. For this purpose, the notch 44 is provided. The joint 30 is constituted by the sliding member 35 and the joint body 30a. The simple connection means 32 has the same configuration as the simple connection means 31 described above.

Next, the operation of the simple connection means 31 will be described. The operation of the simple connection means 32 is the same as the operation of the simple connection means 31.
As shown in FIG. 2, when the joint 30 is in the initial state, the sliding member 35 is located on the most distal end side (the distal end side on one side of the joint body 30a) of the slidable range. The protruding portion 36 of the sliding member 35 is located just outside the lock portion 33. In this state, the protruding portion 36 urges the lock ball 38 to the inside of the joint body 30a, and the lock ball 38 thus urged protrudes to the inside of the inner wall B of the joint body 30a. . And the lock ball 38 protruded to the inside of the inner wall of the joint body 30a prevents the first plug 21 from entering the inside of the joint body 30a.

  When the sliding member 35 in the initial state as described above is slid in a direction away from one end of the joint body 30a, the joint body 30a can be attached to the plug 21. That is, when the sliding member 35 is slid, the protruding portion 36 located just outside the lock portion 33 moves from this position, and the recessed portion 37 is located just outside the lock portion 33. . In this state, the lock ball 38 can be retracted from the inner wall B of the joint body 30a to the recessed portion 37, and the plug 21 can be advanced into the joint body 30a. Thereafter, the plug 21 is inserted into the joint body 30a so that the seal portion 23 of the plug 21 is fitted into an O-ring 48 provided on the inner peripheral surface of the joint body 30a. When the sliding member 35 that has been slid is left to the bias of the spring 39, the sliding member 35 returns to the initial position, and the lock ball 38 is again attached to the inside of the joint body 30a by the protrusion 36. Be forced. The lock ball 38 thus urged contacts the lock groove portion 25 of the plug 21, whereby the joint body 30 a is locked so as not to come out of the plug 21. By making the locked state as described above, hot water or the like can be sent from the mixed water supply pipe 2a to the water outlet main body 12 of the shower head 3 via the flexible pipe 4. In order to remove the joint body 30a from the plug 21 in the locked state, it is necessary to release the lock by the lock ball 38 and the lock groove portion 25. To release the lock, the sliding member 35 is slid downstream. It can be done by moving. That is, when the sliding member 35 is slid to the downstream side, the lock ball 38 can be retracted to the recessed portion 37 of the slide member 35, the lock groove portion 25 is unlocked by the lock ball 38, and the lock is released. It will be released. The above-described unlocking operation can be performed with one hand.

1 is an overall perspective view showing an embodiment of the present invention. It is composition explanatory drawing which shows the state before the connection of the mixed water supply pipe | tube and flexible tube in the said embodiment. It is a perspective view which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water mixing faucet 2 Faucet body 2a Mixed water supply pipe 3 Shower head 4 Flexible pipe 21 1st plug 22 2nd plug 30 Joint with simple attachment / detachment mechanism

Claims (2)

  A hot and cold water mixing faucet provided with a mixed water supply pipe provided on the downstream side of the faucet body and a flexible pipe connected to a shower head so that it can be pulled out. The downstream end of the mixed water supply pipe and the upstream end of the flexible pipe A first plug and a second plug are provided in each of the sections, and the first plug and the second plug are configured to be connected in a pivotable manner via a joint having a simple attachment / detachment mechanism. Hot and cold water faucet. The first plug and the second plug have the same structure, each having a substantially cylindrical shape and having a locking groove formed on the outer peripheral surface, while the joint has the same structure on one side and the other side, The first and second plugs have simple connection means, and the simple connection means has a lock portion for engaging with the lock groove portion on the inner wall of the joint, and the lock portion has a through hole. And a lock ball that is held by the through hole, biased to the inside of the joint by the protruding portion of the sliding member when locked, and retreats to the recessed portion of the sliding member when unlocked, The hot and cold water mixing faucet according to claim 1, wherein the sliding member is slidable along the outer wall of the joint and is always urged upstream by a spring.

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