JPH0752457Y2 - Water discharge control structure in self-closing water faucet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of the water discharge amount adjusting means in a self-closing faucet.

(Prior Art) Conventionally, as a controllable water discharge amount in a self-closing water faucet, there is one shown in Fig. 2 (Fig. 3 of the present application drawing) of Japanese Utility Model Publication No. 61-31229. Referring to FIG. 3, the inside of the main body 31 of the hot and cold water mixing tap is divided into a mixing chamber 32 and a water discharge chamber 33, and the handle 34 attached to the main body 31 is pressed to move the mixing chamber 32 to the water discharge chamber 33. A hot and cold water mixing plug having an automatic valve-closing on-off valve 35 for opening and closing the flow path of the partition wall 36 for partitioning the mixing chamber 32 and the water discharge chamber 33 with an annular port 37 and the water discharge chamber.
The outer wall of the main body 31 forming 33 is opened coaxially with the annular opening 37.
38 are opened respectively, and a cylindrical case 39 that can be inserted into the main body 31 from the opening 38 is inserted through the annular opening 37 and fixed between the mixing chamber 32 and the water discharge chamber 33. The valve hole 40 is opened, and a valve seat 41 is formed around the valve hole 40. The valve seat 41 is sandwiched between the mixed water flow inlet 42 on the side of the mixing chamber 32 and the mixed water flow outlet 43 on the side of the water discharge chamber 33. And a valve element 44 for opening and closing the valve hole 40 by sliding on the inner peripheral surface of the case 39 and contacting with and separating from the valve seat 41 from the primary side. The inner portion of the case 39 that communicates with the mixing chamber 32 via the small passage 45 on the rear side of the 44 is configured as a pressure chamber 46, and the spindle 47 that extends through the valve hole 40 through the valve hole 40 and extends in the opening direction. And a hollow cylindrical valve shaft 48 whose base end is linked to the handle 34 is arranged in the case 39 so as to be capable of advancing and retracting in the direction of the valve hole 40, and in the case 39. A spring 49 for urging the valve shaft 48 in the direction of the handle 34 is provided, and a spindle pushing rod 50 whose tip faces the spindle end face is screwed into the valve shaft 48, and the spindle pushing rod 50 and the spindle 47 are arranged. The distance between the abutting end surfaces of and is adjustable.

In the case of the above, in order to adjust the amount of water discharged from the water discharge pipe, the handle must be detached from the main body before adjusting the spindle pushing rod with a driver etc. It took time.

(Problem to be Solved by the Invention) A problem to be solved by the present invention is to provide a self-closing faucet capable of easily adjusting a discharge amount of water which can be supplied at one time by operating a handle.

(Technical Means for Solving Problems) The technical means taken by the present invention to solve the above problems is to form a valve seat opening in a partition wall that divides the water supply chamber and the water discharge chamber,
The water supply chamber has a valve body urged to close the valve seat opening by a first spring arranged in the valve chamber, and the operating shaft is supported in an insertion hole of a bush arranged in the water discharge chamber. A handle attached to the outer end of the actuating shaft has an inner end of the actuating shaft slidably associated with the driven shaft inserted through the insert hole of the valve body, and a handle attached to the outer end of the actuating shaft has an adjusting screw facing the bush in the screw hole of the rib. The amount of water discharged from the discharge pipe can be adjusted by adjusting the distance between the tip of the adjusting screw and the outer end surface of the bush, and the valve seat can be slid by pressing the handle. In a self-closing faucet in which the valve body closes the valve seat opening by opening the mouth and supplying the pressurized water from the water supply chamber to the valve chamber from the small passage, the cap that covers the end face of the handle has the adjusting screw. A small hole for inserting a driver on the same axis as A.

(Operation) By adjusting the distance between the tip of the adjusting screw screwed into the rib of the handle and the outer end surface of the bush arranged in the water discharge chamber, the amount of water discharged supplied by pressing the handle can be adjusted. This adjusting screw can be easily and quickly adjusted by inserting a driver through a small hole formed in the cap without removing the handle from the water faucet.

(Embodiment) An embodiment of the present invention will be described below in detail with reference to the drawings.

In this embodiment, as shown in FIGS. 1 and 2 (a) and (b), the handle 1 has a substantially horizontal H-shaped cross section, and the central rib 2 has a male screw portion 5 at the base end of the operating shaft 3. A sleeve 4 is formed by inserting an insertion hole 6 through which the rib 2 is sandwiched in the male screw portion 5.
And a nut 7 are attached to integrally connect the handle 1 and the operating shaft 3, and a separately provided adjusting screw 8 is screwed into a screw hole 9 of the rib 2 so as to be screw-feedable. A small screw 10 for fixing the adjusting screw 8 so as not to loosen during use over a long period of time is screwed into a screw hole 9a which communicates with the screw hole 9a. The cap 13 is provided with a small hole 12 for inserting a driver on the same axis as the adjusting screw 8. The bush 14 is supported by inserting the operating shaft 3 into the insertion hole 6a, and the bush 14 is attached to the female screw portion 11a of the self-closing faucet A described later through the male screw portion 5a. A handle unit B is constructed by attaching a snap ring 16 for preventing the slip-out from the insertion hole 6a to the outer end of the handle unit B. The self-closing faucet A has a small passage 20a formed by forming a valve seat opening 19 in a partition wall 28 that divides the water supply chamber 17 and the water discharge chamber 18, and by forming one end of a valve body 20 that opens and closes the valve seat opening 19. By the water supply room 1
7 and a valve chamber 21 formed between the valve body 20 and the plug 25 are always in communication with each other, and a guide 22 having a cross-shaped cross section that inserts the valve seat opening 19 is integrally connected to the valve body 20. The driven shaft 23 is inserted through a common insertion hole 6b provided in the guide 22 and the valve body 20, a snap ring 16a for retaining is provided at the tip of the driven shaft 23, and a large-diameter seat 24 is provided at the base end. The first spring 26 is mounted in the valve chamber 21 between the seat 24 and the seat 24a of the plug 25. This first
The elastic pressure of the spring 26 is weaker than that of the second spring 26a arranged between the handle 1 and the bush 14. The self-closing valve mechanism 15 configured as described above communicates with a mixing faucet body (not shown) that is connected to the water supply chamber 17, and is configured to supply from the discharge pipe 27 to the outside via the water discharge chamber 18.

Now, the case of supplying the mixed water of the proper temperature from the discharge pipe 27 will be described. When the pushing operation is applied to the handle 1, the handle 1 moves in the direction of the arrow P against the elasticity of the second spring 26a, 1 and the rib 2 move the operating shaft 3 integrated in the same direction, and the driven shaft 23 of the self-closing valve mechanism 15 standing by facing the end face of the operating shaft 3 is also in the direction of arrow P. Since the valve body 20 integrated with the driven shaft 23 moves the same, the valve seat opening 19 is opened. The opening amount of the valve seat opening 19 is equal to the length from the tip 8a of the adjusting screw 8 moved in the same direction together with the handle 1 to the collision with the outer end surface 14a of the bush 14. The mixed water that has reached the water supply chamber 17 due to the opening of the valve seat opening 19 is supplied to the outside from the valve seat opening 19 through the discharge chamber 18 and the discharge pipe 27. Next, when the hand is released from the handle 1, the handle 1 and the actuating shaft 3 are moved to the second spring 26.
It returns to its original position due to the elastic pressure of a. However, since the valve chamber 21 is in a depressurized state, the valve body 20 does not immediately close the valve seat opening 19, and the small passage 20a of the valve body 20 causes the valve body 20 to valve by the pressure water supplied from the water supply chamber 17 to the valve chamber 21. When the volume of the chamber 21 gradually increases and the valve body 20 moves to close the valve seat opening 19, the supply of the mixed water is stopped. In this case, the supply amount of the mixed water is determined by the distance between the tip 8a of the adjusting screw 8 and the outer end surface 14a of the bush 14, and the larger the distance, the more the valve body 20 acts in the direction away from the valve seat opening 19 when the handle 1 is pushed. However, the time until the valve body 20 closes the valve seat opening 19 after releasing the handle 1 becomes long, and the supply amount also increases. The supply amount can be adjusted by inserting a driver through the small hole 12 formed in the cap 13 and rotating the adjusting screw 8 without removing the handle 1 from the self-closing water faucet A.

(Effects) The present invention has the following advantages because of the above-described configuration.

(1) The cap that covers the end face of the handle is provided with a small hole that opens on the same axis as the adjusting screw, and the tip of the driver can be inserted through the small hole to adjust the adjusting screw. The flow rate can be adjusted easily and quickly without the trouble of removing the handle from the self-closing water faucet when adjusting the amount of water to be supplied.

[Brief description of drawings]

FIG. 1 is a partial side sectional view of the self-closing faucet of the present invention, and FIG. 2 (a).
Is a front view taken along the line ZZ in FIG. 1, (b) is an enlarged side sectional view of the handle unit, and FIG. 3 is an explanatory view of a conventional technique. (Explanation of symbols of main parts) 1 ... Handle, 2 ... Rib 3 ... Operating shaft, 6, 6a, 6b ... Insert hole 8 ... Adjusting screw, 8a ... Tip 9, 9a ... Insert hole, 12 …… Small hole 13 …… Cap, 14 …… Bush 14a …… Outer end face, 17 …… Water supply chamber 18 …… Water discharge chamber, 19 …… Valve seat 20 …… Valve, 20a …… Small passage 21… … Valve chamber, 23 …… Driven shaft 26 …… First spring, 27 …… Discharge pipe 28 …… Differential wall, A …… Self-closing faucet

Claims (1)

[Scope of utility model registration request] 1. A valve seat opening 19 is formed in a partition wall 28 that divides the water supply chamber 17 and the water discharge chamber 18, and the valve seat opening 19 is provided in the water supply chamber 17 by a first spring 26 arranged in the valve chamber 21. It has a valve body 20 which is biased to be closed, and supports the operating shaft 3 in the insertion hole 6a of the bush 14 arranged in the water discharge chamber 18, and the operating shaft 3
The handle 1 attached to the outer end of the actuating shaft 3 has a bush 14 in the screw hole 9 of the rib 2 and a bush 14 in which the bush 14 is attached to the driven shaft 23 which is inserted into the insertion hole 6b of the valve body 20 so as to freely come and go. By adjusting the distance between the tip 8a of the adjusting screw 8 and the outer end surface 14a of the bush 14 by screwing the adjusting screw 8 facing each other, the amount of water discharged from the discharge pipe 27 can be adjusted, and the pressing operation of the handle 1 is performed. The valve body 20 is slid to open the valve seat opening 19, and the pressurized water in the water supply chamber 17 is supplied to the valve chamber 21 from the small passage 20a so that the valve body 20 closes the valve seat opening 19 by self-closing. In faucet A,
A cap 13 for covering the end face of the handle 1 is provided with a small hole 12 into which a driver is inserted on the same axis as the adjusting screw 8 to form a water discharge adjusting structure for a self-closing faucet.