CN2595898Y

CN2595898Y - Self control water inlet valve for flushing toilet cistern

Info

Publication number: CN2595898Y
Application number: CN 03211221
Authority: CN
Inventors: 何连祥; 郭燕昌; 周新民; 陶敏
Original assignee: 何连祥
Priority date: 2003-01-27
Filing date: 2003-01-27
Publication date: 2003-12-31
Anticipated expiration: 2013-01-27

Abstract

The utility model discloses an automatic control water inlet valve of a water tank of a water flushing toilet. A water inlet pipe head (501) with a bulge at the bottom part thereof and a tubular upper valve body (5) with a water outlet hole (502) thereof are connected with the upper end of a tubular lower valve body (1) arranged at the bottom of a water tank and connected with a water inlet pipe, an inner chamber of the upper valve body (5) is provided with a guide rod (7) which can move up and down and of which the upper part is fixed with a floating barrel (6) of which the inner side is provided with water, and the lower end of the guide rod (7) is connected with a valve core (8) with the function of closure. The utility model can realize the automatic control of not only water inlet opening, but also water stop closing, has a very good effect of closure, and can prevent the water from backflow. The utility model has the advantages of simple structure, easy installation, low failure rate in the operation process, long service life, and capability of ensuring the long normal use of the water tank.

Description

The automatic control inlet valve of flushing cistern for closet

Technical field

The utility model relates to the water feed apparatus in a kind of flushing cistern for closet, is specially the automatic control inlet valve of flushing cistern for closet.

Background technology

At present, be arranged on the water feed apparatus in the flushing cistern for closet, be in water tank, to be equipped with a vertical water inlet pipe that is connected with running water pipe, the upper end of water inlet pipe is equipped with the connection lever that its end is connected with the ball float of a spheroidal, connect the top that the lever other end places water inlet pipe, when in the water tank by water feed apparatus water inlet and when water level is reach a certain height, the ball float come-up, the other end that makes it to connect lever is sealed the water inlet of water inlet pipe, water tank has just stopped water inlet, otherwise when open gauge tap water on the water tank flow out from water tank wash away the toilet seat pond after, drawdown in the water tank, ball float moves down, and drives the connection lever and moves, the other end that makes it to connect lever leaves the water inlet of water inlet pipe, and water just flows to water tank.The water feed apparatus of this flushing cistern for closet can be opened automatically and be closed automatically; but service time is of a specified duration; contact imprecision between the other end that lever will occur connecting and the water inlet of water inlet pipe and seal tight water inlet; the effect of closing water is bad; water still can continue to flow in the water tank; and connect that lever also usually can break down or malfunctioning, not only to often overhaul, even can cause because water feed apparatus can not continue to make water tank inactive.

Summary of the invention

The purpose of this utility model provides a kind of automatic control inlet valve of flushing cistern for closet, and the opening and closing of this inlet valve can not only realize automatic control, and closes when closing effective, be difficult for breaking down, more can be not malfunctioning, long service life can ensure long-term normal use of water tank.

To achieve these goals, the utility model be connected with the tap water water inlet pipe of water tank bottom and be fixed in the water tank case at the bottom of on the upper end of following valve body of tubulose, be connected with the upper valve body that its bottom has projection water inlet tube head and has the tubulose of weep hole on it, be equipped with its top that can move up and down in the inner chamber of upper valve body the guide rod of the floating drum of water is housed in being fixed with, the lower end of guide rod is connected with the spool with closing function.

Effect and the characteristics that the utlity model has are:

1, this inlet valve is not only opened water inlet and is closed that cut off the water can automatic control, and closes that to close effect when cutting off the water very good, and can prevent the refluence of the water in the water tank;

2, simple in structure, be easy to make and install, be difficult in the use breaking down, long service life can ensure long-term normal use of water tank;

3, this inlet valve not only can be used on the water tank of the water-closet in esidential building, hotel, the washroom, hostel, can also be used on the cistern of public lavatory, can be used in again on the water tank of other purposes of opening water inlet and closing the requirement automatic control of cutting off the water.

Description of drawings

Fig. 1: front view of the present utility model

Fig. 2: structural representation of the present utility model

Fig. 3: A-A transverse cross-sectional view among Fig. 1

Fig. 4: the front view that is used for the inlet valve of low water stage water tank

The specific embodiment

The utility model be connected with the tap water water inlet pipe of water tank bottom and be fixed in the water tank case at the bottom of on the upper end of following valve body 1 of tubulose, being connected with its bottom has on projection water inlet tube head 501 and its and has the upper valve body 5 that weep hole 502 bottoms are the expanding reach tubulose, be equipped with a guide rod that can move up and down 7 in the inner chamber of upper valve body 5, the floating drum 6 that is loaded with water in one is fixed on the top of guide rod 7, the lower end of guide rod 7 be connected with can shutoff projection water inlet tube head 501 water inlets of upper valve body have the spool 8 of closing function, this spool 8 is that its upper end is connected with guide rod 7 by the external screw thread that has, its lower end is inlaid with the core bar of rubber seal 801, be equipped with the rubber non-return cover 9 that its bottom has the inlet opening in the following bottom of valve body 1 inner chamber, be placed with check ball 10 in the non-return cover 9.

Middle part at following valve body 1 has annular boss 101, the below of annular boss 101 is equipped with sealing mat 3, its hypomere has external screw thread, be equipped with hold-down nut 2 on it, top have with upper valve body 1 expanding reach on the interconnective internal thread of external screw thread, be equipped with sealing mat 4 between the annular boss 503 that on down valve body 1 and upper valve body 5, has.

Said floating drum 6, a cylindrical shell of pegging graft and forming by first cylindrical shell 602 and second cylindrical shell 603 of the central authorities at the tube intonation have respectively with it is vertical that cylindrical shell is combined as a whole bar cover 604,605, and be equipped with the bonding adhesive of sealing and fixing at splicing position, be equipped with water injection hole 601 on first cylindrical shell 602, the bar cover 604 of first cylindrical shell and the bar cover 605 of second cylindrical shell are docked, and stick with glue the agent fixing seal, in guide rod 5 insertion rods cover 604,605, floating drum 6 is stuck on the guide rod 5 securely.

Bar that the central authorities in second 603 chambeies of cylindrical shell have cover 605 is that the tube bear building-up with second cylindrical shell 603 is integrated, and upper valve body 5 places the below at the bottom of 603 of second cylindrical shells.

Bar that the central authorities in second 603 chambeies of cylindrical shell have cover 605 is that the cylindric groove that the tube with second cylindrical shell 603 is equipped with at the end is combined as a whole, and upper valve body 5 places groove.

Automatic control inlet valve of the present utility model is connected with the tap water water inlet pipe of water tank bottom by the external screw thread on the following valve body 1, and on being fixed at the bottom of the water tank case, makes it place water tank.This valve is when work, tap water enters down in the inner chamber of valve body 1, and check ball 10 is risen, tap water enters in the inner chamber of upper valve body 5 via the projection water inlet tube head 501 of upper valve body 5 bottoms again, flow in the water tank via the weep hole on the upper valve body 502 again, when the water level in the water tank reach a certain height, upwards float at buoyancy of water effect lower pontoon, the spool 8 that drive is connected guide rod 7 lower ends moves up, seal 801 on the spool 8 closely contacts with projection water inlet tube head 501, the water inlet of water inlet tube head is obturaged, water just stops to enter in the water tank, the inlet opening that check ball 10 falls after rise non-return cover 9 blocks, and can prevent the refluence of sealing, and this moment, valve was in closed condition; When water tank discharges water flushing toilet bowl, drawdown in the water tank, when drawdown during to certain altitude, floating drum moves down under the self gravitation effect, drives spool 8 and moves down, and the passage of water is opened, water just flows in the water tank, valve is in opening, relies on moving up and down of floating drum and spool like this, and makes the opening and closing of valve realize automatic control.

Shown in Figure 4 is the schematic diagram of the another kind of form of the utility model, as can be seen from Figure, the groove cylindraceous that upper valve body 5 is had on placing at the bottom of second cylindrical shell tube so just can reduce the height of valve accordingly, and it is adapted to be mounted within the water tank of low water stage.

Claims

1. the automatic control inlet valve of a flushing cistern for closet, it is characterized in that: be connected with the tap water water inlet pipe of water tank bottom and be fixed in the water tank case at the bottom of on the upper end of following valve body (1) of tubulose, being connected with its bottom has projection water inlet tube head (501) and has the upper valve body (5) that weep hole (502) bottom is the expanding reach tubulose on it, be equipped with a guide rod that can move up and down (7) in the inner chamber of upper valve body (5), the floating drum (6) that is loaded with water in one is fixed on the top of guide rod (7), the lower end of guide rod (7) is connected with the spool (8) that energy shutoff upper valve body projection water inlet tube head (501) water inlet has closing function, this spool (8) is that its upper end is connected with guide rod (7) by the external screw thread that has, its lower end is inlaid with the core bar of rubber seal (801), be equipped with the rubber non-return cover (9) that its bottom has the inlet opening in the following bottom of valve body (1) inner chamber, be placed with check ball (10) in the non-return cover (9).

2. the automatic control inlet valve of flushing cistern for closet according to claim 1, it is characterized in that: the middle part at following valve body (1) has annular boss (101), the below of annular boss (101) is equipped with sealing mat (3), its hypomere has external screw thread, be equipped with hold-down nut (2) on it, top has the internal thread that is connected with external screw thread on upper valve body (5) expanding reach, is equipped with sealing mat (4) between the annular boss (503) that has on valve body (1) and upper valve body (5) down.

3. the automatic control inlet valve of flushing cistern for closet according to claim 1, it is characterized in that: said floating drum (6), it is bar cover (604) by the central authorities in the tube chamber have respectively with it is vertical that cylindrical shell is combined as a whole, (605) cylindrical shell that first cylindrical shell (602) and second cylindrical shell (603) are pegged graft and formed, and be equipped with the bonding adhesive of sealing and fixing at splicing position, be equipped with water injection hole (601) on first cylindrical shell (602), the bar cover (604) of first cylindrical shell and the bar cover (605) of second cylindrical shell are docked and stick with glue the agent fixing seal, with guide rod (5) insertion rod cover (604), (605) in, floating drum (6) is stuck on the guide rod (7) securely.

4. according to the automatic control inlet valve of claim 1 or 3 described flushing cistern for closet, it is characterized in that: the bar cover (605) that the central authorities in second cylindrical shell (603) tube chamber have, be that a tube bear building-up with second cylindrical shell (603) is integrated, upper valve body (5) places the below at second cylindrical shell (603) tube end.

5. according to claim 1 or 3 described flushing cistern for closet automatic control inlet valves, it is characterized in that: the bar cover (605) that the central authorities in second cylindrical shell (603) tube chamber have, be that the cylindric groove that the tube with second cylindrical shell (603) was equipped with on the end is combined as a whole, upper valve body (5) places tongue.