JPH0438140Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a single faucet, and more specifically, a cylinder that uses the body of a normal compression type faucet installed as a water faucet.・Regarding stem-type single faucets.

[Conventional technology and its issues]

As is well known, water taps have a maximum working pressure of 7.5 kg/
Since it is attached to the end of a cm ² water pipe, the material of the body of the faucet is cast bronze, for example, in order to comply with the standard. General water faucets can be categorized structurally as compression type, in which the valve seat is opened and closed by a screw on the faucet rod;
Plug type that opens and closes by turning 90 degrees, self-closing type where the valve seat opens manually and closes using a spring or water pressure, and ball tap type where the ball acts as a float in the water and the valve at the end of the ball opens and closes depending on the amount of water. It is classified as Of these, the most commonly used one is the compression type faucet. Compression type faucets have a simple structure, are inexpensive, and are less likely to break down, but on the other hand, because the compression type faucet is pressed every time the faucet is closed, The service life of the stopper is short, and in addition, in order to screw the screw of the stopper rod in the vertical direction, the stopper rod must be rotated with a handle or knob, which is a bit of a pain, but it is a bit of a hassle. .

Therefore, the inventor of the present invention tried to solve the inconveniences of compression type water faucets, and as a result of trial and error, for example, as shown in Japanese Utility Model Publication No. 56-26134 and Publication No. 56-30785, They came up with the idea of applying the cylinder-stem type structure using a single lever, which is well known for hot and cold water mixing faucets, to a single faucet. However, the cylinder stem type single-lever water mixing faucet has a complicated structure and has faced the problem of being significantly higher in cost than a general compression type faucet.

Although the branch type hydrant introduced in Publication of Utility Model Publication No. 59-7427 uses the body of the existing compression type hydrant as it is, it still has the same characteristics as the conventional compression type hydrant. The inconvenience has not been resolved.

Therefore, in an attempt to solve this problem, the inventor of the present invention used the body of a conventional compression type faucet without making any repairs, and added a single-lever type cylinder stem type body to the body. We devised a cylinder-stem type single faucet to replace the compression type faucet by making the parts extremely easy to install and remove, even for amateurs.

However, the single faucet devised by the present inventor can be operated by simply moving a single lever up and down.
Since the valve can be opened and closed, a problem has been discovered in that the valve can be closed rapidly, causing a water hammer sound, which causes discomfort to the user.

[Means to solve the problem]

Therefore, the present invention was devised to eliminate such problems, and its gist is that the inlet part 30 communicates with the water pipe, the outlet part 31 forming the faucet, and the inlet part 30. A horizontal top sheet part 32 that separates the exit part 31, and a cylindrical rising part 33 extending above the top sheet part 32.
In the body A of the compression type faucet, the body A of the compression type faucet includes:
Insert the cylinder 1 with the flange 2 around it through the opening, and place the lower end of the cylinder 1 on the top sheet part 32.
The cylinder 1 is secured to the cylinder 1 by a cap nut 3 whose flanges 2 are brought into contact with the opening ends of the cylindrical rising portion 33, inserted into the outer periphery of the cylinder 1, and screwed onto the packing screw 36 with the flange 2 in between. is fixed to the cylinder A, and the opening 10 provided at the upper and lower intermediate portions of the cylinder 1 is communicated with the outlet portion 31, and the sliding freely movable piston 9
is inserted into the opening 1 by sliding the piston 9 up and down using a lever 13 fixed to the piston 9.
The piston 9 is integrally connected with large diameter pipes 20 and small diameter pipes 21, and the inner periphery of the cylinder 1 is connected near the joint between the large diameter pipe 20 and the small diameter pipe 21. The accumulator 26 is formed with an enlarged diameter, and the small diameter pipe 21 is provided with a pore 23 to form the accumulator 26.
The single faucet is characterized in that an elastic O-ring 24 is fitted into the small diameter pipe 21 to constantly communicate with the small diameter pipe 21 and close the pore 23.

[Effect]

For a normal compression type water faucet installed at the end of a water pipe, remove the cap nut for holding the seal and the tap rod with a piece, leaving only the body A. Next, the cylinder 1 having the flange 2 on the outer periphery is inserted into the opening of the cylindrical rising part 33 of the cylinder A, and the lower end of the cylinder 1 is brought into contact with the piece seat part 32 of the cylinder A, and the flange 2 is attached to the cylinder A. The opening end of the cylindrical rising portion 33 is brought into contact with the opening end of the cylindrical rising portion 33.
Next, attach the cap nut 3 to the flange 2 of the cylinder 1.
The cylinder 1 is fixed to the body A of the faucet by screwing it onto the gasket retaining screw 36 of the body A. As a result, the inlet portion 30 of the body A and the cylinder 1 communicate with each other through the hole in the piece seat portion 32. Further, the cylinder 1 has an opening 10 in the middle thereof, and this opening 10 communicates with the outlet 31 of the barrel A.

Therefore, by inserting the piston 9 into the cylinder 1 and operating the lever 13 provided on the piston 9, the opening 10 provided in the cylinder 1 can be opened and closed. During opening and closing, the large-diameter pipe 20 and small-diameter pipe 21 of the piston 9 reciprocate inside the accumulator 26 provided in the cylinder 1, so that the inside of the accumulator 26 expands and contracts, and water flows in and out from the pores 23. However, when the valve is opened, the elastic O-ring 24 prevents its outflow, creating resistance to closing the valve.

〔Example〕

Hereinafter, the structure of the present invention will be explained in detail with reference to embodiments shown in the accompanying drawings. Fig. 1 is an overall side view of a single faucet according to the first embodiment of the present invention, which is attached to the body of an existing faucet; Fig. 2 is a cross-sectional view of the main parts of the single faucet shown in Fig. 1; The figure shows a cross-sectional view of the body of a general compression type water faucet.

First, the body A of a conventionally well-known compression type faucet will be explained. In FIG. 3, the body A includes an inlet part 30 that connects to a water pipe (not shown), an outlet part 31 that forms a faucet, and a partition between the inlet part 30 and the outlet part 31, as is well known. A horizontal top seat portion 32, a cylindrical rising portion 33 extending above the top sheet portion 32, and an inner portion of the cylindrical rising portion 33 for screwing a stopper (not shown) with a top 34 attached thereto. A threaded portion 35 for screwing into the stopper rod is carved on the circumference, a packing retaining screw 36 is carved on the outer periphery of this cylindrical rising portion 33, an abutment flange 37 provided on the outer periphery of the inlet portion 30, and a joint screw 38, It consists of

In this body A, the single faucet main part (cartridge) B of the embodiment of the present invention is assembled as follows. That is, in FIGS. 1 and 2, the screw part 35 for screwing the stopper rod is inserted from the upper opening of the cylindrical rising part 33 onto the horizontal top sheet part 32 of the barrel A.
Insert and place cylinder 1 with a diameter slightly smaller than the diameter of the ridge. This cylinder 1 has a piece sheet part 3.
A flange 2 is provided around the outer periphery at a position approximately equal to the length from the upper surface of 2 to the opening end of the cylindrical rising portion 33. With this flange 2 in between, tighten the bag nut 3.
(corresponding to the gasket retainer of a conventional water faucet) is screwed onto the gasket retainer screw 36. A screw 1' is carved on the outer periphery above the flange 2, and the bottom part 5 of the first lever fulcrum case 6 is screwed onto this screw 1'. An inner case 7 is screwed onto this bottom part 5 and into a lever fulcrum case 6. A fixing nut 8 is screwed into the inner case 7 onto the screw 1' of the cylinder 1, and the inner case 7 is sandwiched and fixed between the bottom part 5 and the fixing nut 8. Therefore, by screwing the cap nut 3 onto the packing retaining screw 36 of the body A, the cylinder 1, lever fulcrum case 6, etc. are fixed in a state placed on the piece seat part 32.

A pipe-shaped piston 9 corresponding to a stem is loosely fitted into the cylinder 1 so as to be vertically slidable. At that time, the cylinder 1
O-rings 11, 11 are provided on the sides, and the piston 9 is loosely fitted through these O-rings 11. A fulcrum part 12 is provided between the upper and lower sides of the piston 9, and a lever 13 is fixed to the fulcrum part 12 so as to be able to swing vertically about the lever fulcrum case 6 as a fulcrum.

Note that a screw is carved on the upper outer periphery of the inner case 7, and the second lever fulcrum case 14 is attached to this screw.
to screw on. A screw is cut into the inner periphery of the small diameter portion 15 of the second lever fulcrum case 14, and a piston stroke adjustment cap 16 is screwed onto this screw. A flange 17 is extended from the outer periphery of the lower end of the adjustment cap 16, and this flange 17 is fitted into the first lever fulcrum case 6. An adjusting nut 18 splined to the upper end of the pressure adjusting cap 16 is engaged. Note that 19 indicates a makeup cap.

Here, the present invention provides the following water hammer prevention measures. The pipe-shaped piston 9 is connected to a large-diameter pipe 20 and a small-diameter pipe 21 smaller than the large-diameter pipe 20. That is, the small diameter pipe 21 is fitted into the large diameter pipe 20, and the lower end of the large diameter pipe 20 is brought into contact with the flange 22 provided halfway around the outer periphery of the small diameter pipe 21, so that both pipes 20, 2
Integrate 1. A small hole 23 is provided on the lower side of the flange 22, and an elastic O-ring 24 is fitted onto the small diameter pipe 21 so as to close the small hole 23.

Then, a large diameter pipe 2 is placed on the inner circumference of the cylinder 1.
0 and an enlarged diameter portion larger than the outer diameter (10 mmφ) of the small diameter pipe 21 to form a dead end chamber 26 as an accumulator. This dead-end chamber 26 is communicated with the inside of the piston 9 via the small hole 23.

Next, the operation of this embodiment will be described. First, to attach an existing compression type faucet to the body A, remove the seal retainer and tap rod, and take out the stopper. Next, main part B of the single faucet of this embodiment
is placed on the frame sheet part 32 of the body A, and screwed with a cap nut 3 to secure the main part B of the single faucet.

Therefore, in order to open the cap, when the lever 13 is pushed down, the fulcrum 12 rises, and the piston 9 integrated therewith rises. As a result, the piston 9 opens the opening 10 of the cylinder 1, and the tap water that has been introduced to the top seat portion 32 is discharged from the outlet portion 31. Here, when pressing down the lever 13, since the piston 9 is pipe-shaped and the fulcrum part 12 is penetrated by the small hole 27,
Even if the piston 9 enters the adjustment cap 16, which is a balance case, no resistance is generated.
The lever 13 can be easily operated. By adjusting the degree to which the lever 13 is pressed down, the opening area of the opening 10 can be adjusted and the amount of water discharged can be adjusted.

In addition, to close the cap, press lever 1 in the opposite direction to the above-mentioned opening.
Just pick up 3.

Also, if the lever 13 is pushed down, the piston 9
At that time, after the large-diameter pipe 20 rises and passes through the dead-end chamber 26, the small-diameter pipe 21 newly enters, and its volume expands, so the tap water inside the piston 9 flows into the blind alley 26 while deforming the O-ring 24 to expand its diameter. On the other hand, when the lever 13 is raised, the piston 9 descends, but at that time, the volume of the cul-de-sac chamber 26 is reduced, so the tap water in the cul-de-sac chamber 26 is blocked by the O-ring 24 pressing against the pore 23. This creates resistance and allows the piston 9 to return only gradually, making it difficult to push up the lever 13 and, in turn, closing the opening 10 of the piston 9 slowly, making it possible to avoid water hammer.

Although the present embodiment has been described with respect to a basic single faucet, the present invention is not limited thereto, and can also be applied to a branch type single faucet in which a branch path is provided in the vicinity of the second lever fulcrum case 14.

[Effect of idea]

According to the present invention, the main part of a cylinder-stem type single faucet (cartridge) is created by using the body of a normal compression type faucet installed as a water faucet.
By using the existing inexpensive body that is commercially available and attached to walls, etc., the overall cost of the single faucet can be reduced, and ordinary compression type faucets can be used in daily life. The piece is often replaced by removing the seal retainer, stopper rod, and piece, but since the main parts of a cylinder-stem type single faucet can be installed in the same way, the installation work is extremely easy. . Moreover, since it is a cylinder/stem type single faucet, unlike compression type faucets, there is no pressure on the seal, and the life of the seal can be extended. In addition, since the piston can be moved up and down, the operation is much easier than turning the stopper rod of a normal compression type faucet.

In particular, the cylinder is fixed to the cylindrical rising part by sandwiching the flange of the cylinder using a cap nut that is screwed onto the packing screw, so the cylinder can be fixed without using a special fixing member, simplifying the structure. Therefore, in conjunction with the above, the cost of a single faucet can be further reduced.

The capacity of the accumulator can be expanded and contracted using a large-diameter pipe and a small-diameter pipe, and it is gradually reduced only when the valve is closed, so it provides a so-called brake to light lever operation, and prevents the valve from closing too quickly. , avoid water hammer effect.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of the first embodiment of the present invention;
FIG. 2 is a sectional view of the main part of FIG. 1, and FIG. 3 is a sectional view of the body of a conventional compression type faucet. 1... Cylinder, 2... Flange, 3... Cap nut, 9... Piston, 10... Opening, 11
... O-ring, 13 ... lever, 23 ... pore,
26... Cul-de-sac room, 30... Entrance part, 31... Outlet part, 32... Top seat part, 33... Cylindrical rising part, A... Body, B... Single faucet main part, 36... Packing Holder screw.

Claims (1)

[Claims for Utility Model Registration] An inlet portion 30 communicating with a water pipe, an outlet portion 31 forming a faucet, and these inlet portion 30 and outlet portion 3
1, a cylindrical rising portion 33 extending above the cylindrical rising portion 32, and a gasket retaining screw 36 carved on the upper outer periphery of the cylindrical rising portion 33. In the body A of the compression type faucet, the cylinder 1 with the flange 2 surrounding it is inserted through the opening of the cylindrical rising part 33, the lower end of the cylinder 1 is inserted into the top seat part 32, and the flange 2 is inserted into the cylinder. The cylinder 1 is fixed to the body A with cap nuts 3 that abut the opening ends of the shaped rising portions 33, are inserted into the outer periphery of the cylinder 1, and are screwed onto the gasket retaining screws 36 with the flange 2 in between. and an opening 1 provided in the upper and lower intermediate parts of the cylinder 1.
0 communicates with the outlet portion 31, and the O provided above and below the opening 10 of the cylinder 1.
A slidable piston 9 is inserted through the ring 11, and the piston 9 is slid up and down by a lever 13 fixed to the piston 9 to open and close the opening 10, and the piston 9 is made to have a large diameter. and small diameter pipe 20,2
1, an accumulator 26 is formed in the vicinity of the joint between the large diameter pipe 20 and the small diameter pipe 21, and the inner circumference of the cylinder 1 is enlarged in diameter. A hole 23 is provided to constantly communicate with the accumulator 26, and the small diameter pipe 21
A single faucet characterized in that an elastic O-ring 24 that closes the pore 23 is fitted into the faucet.