CN2208134Y - Automatic inlet valve of water tank - Google Patents

Abstract

The utility model discloses an automatic inlet valve of a water tank. A rubber sealing ring which is arranged at the opening of an inlet pipe is connected with a moving valve plate which is a cone, and a moving axle pin is arranged in the middle part of the valve plate, which is hollow. The length of the axle pin is a little longer than the width of the valve plate, the upper end of the valve plate is hung by the axle pin, and a valve core forms a sphere or a cone. The sealing of the automatic inlet valve of the water tank is completed by adopting a secondary action, sealing performance is reliable, and the function of the valve core to the moving valve plate is displayed in the form of a point. Thus, sealing performance can not be influenced by component wear.

Description

Automatic inlet valve of water tank

The utility model relates to a kind of valving of water tank, belongs to the critical component of water-closet, flushing device, and it can be applicable to various types of water tanks.

Water shortage problem is more and more serious in the world, the water leakage phenomenon of water tank causes people's very big concern, usually the automatic water turn-off device of water tank often can reach the requirement of sealing when just using, but, will produce water leakage phenomenon after a while, there are many technological schemes to propose to improve water tank for this reason and close water sealing device, for example Chinese patent CN2127969Y number about mentioning in " a kind of water tank closes water sealing device automatically " that a kind of employing float lever makes upwards upset of support, and it is mobile inwards to promote spool by adjusting screw, the conical surface interface of conehead on the spool and spool bore is adjacent to, play seal action, this seal arrangement is regulated cumbersome, and part is easy deformation and influence sealability also.

Task of the present utility model is the automatic water inlet valve that a kind of high-seal will be provided, and the leak-proof measure of this automatic water inlet valve is reliable, and good sealing effect, component are not easy distortion, long service life.

Task of the present utility model is finished as follows, rubber seal in the valve seat is close to water inlet pipe mouth, one can join with it by movable valve block, the upper end of this movable valve block is fixed on the bearing pin, its intermediate hollow place places one can movable bearing pin, this bearing pin length is more longer slightly than the valve block width of plastics, it is conical that valve block is, spool is spherical in shape or conical, connected valve stem tip is to be suspended on the slide block with bearing pin, settles a seal ring between valve gap and valve seat.The seal arrangement of the automatic water inlet valve of this water tank is finished by secondary action, so sealability is good especially, contacting force way between spool and the movable valve block is become a little by the plane, parts depreciation can not have influence on whole sealability, thereby solved seepy question, this structure Design is that reasonably effect is more remarkable.

Below in conjunction with accompanying drawing the utility model is further elaborated.

Fig. 1 is the automatic water inlet valve sectional view of the utility model spherical valve core.

Fig. 2 is the automatic water inlet valve sectional view of the utility model cone plug.

As can be seen from Figure 1, spherical spool (1) forward extrusion valve block (2) and rubber seal (3), rubber ring (3) blocks intake pipe (4) water inlet, can make with plastic article by movable valve block (2), it tilts to contact with spool (1), the centre of valve block (2) is hollow, a bearing pin (5) is placed in its inside, its length is more longer than the width of valve block (2), the upper end of valve block (2) is to hang on the bearing pin (6), valve block (2) has the deflection of several angle when mobile like this, and outlet pipe (7) is positioned at the lower end, and flowing water can flow into water tank thus.Valve rod (8) one ends are to be connected with spool (1), its the other end is to be suspended on the slide block (10) by bearing pin (9), and along with slide block (10) moves up and down, ball float (11) joins with connecting rod (12), and connecting rod (12) is formed a leverage with slide block (10).When water tank discharged water, ball float (11) sank gradually, and leverage lifts slide block (10) and rises, and therefore drove valve rod (8) and spool (1) and rose; One side pressure of valve block (2) reduces, and the pressure of intake pipe (7) end is constant, it will promote rubber seal (3) and movable valve block (2) moves right, valve block (2) is made yaw motion around bearing pin (6) simultaneously, bearing pin (5) begins to expose the outside of valve block (2), water enters valve seat (13) from intake pipe (4), flow to outlet pipe (7) then, between valve gap (14) and valve seat (13) seal ring (15) is arranged, the next door of valve gap (14) also has an outlet pipe (16).When water tank water intake behind certain altitude, ball float (11) is held up by water, by means of leverage valve rod (8) is moved down, spool (1) little by little withstands the bearing pin (5) at valve block (2) intermediate hollow place, bearing pin (5) promotion rubber seal (3) moves forward and is attached to intake pipe (4) mouth, further moving down of spool (1), extruding valve block (2) also moves forward, make rubber seal (3) be adjacent to intake pipe (4) mouth, because the seal process of rubber ring (3) is a secondary action, so its sealability is strong especially, moreover contact is to adopt point stressed between valve block (2) and the spool (1), its effect is better than other patterns, can not be subjected to the influence of parts wear or distortion.

The structure of the spool that Fig. 2 is different with Fig. 1 (1), its spool (1) is to be conical, the automatic water inlet valve structure of this water tank is more reasonable, also adopts the sealing action of secondary, its sealability height, valve block (2) is conical with the surface of contact of spool (1), its stressed remaining a little, face effect, so flexible movements, significant sealing affection, long service life.

Claims (3)

1, a kind of spool (1), the water tank automatic water inlet valve that valve rod (8), ball float (11) and connecting rod (12) are formed, it is characterized in that: be equipped with a rubber seal (3) at intake pipe (4) mouth, it and movable valve block (2) join, and it is conical that valve block (2) is, and valve block (2) middle part is hollow, there is an active pin shaft (5) to put inside, its length is bigger than the width pin of valve block (2), and the upper end of valve block (2) hangs on the bearing pin (6), and spool (1) is spherical in shape.

2, by the water tank automatic water inlet valve of claim 1 defined, it is characterized in that: spherical valve core (1) also can use cone plug (1) to substitute, and movable valve block (2) is made with plastic article.

3, by the water tank automatic water inlet valve of claim 1 defined, it is characterized in that: between valve gap (14) and valve seat (13), a seal ring (15) is arranged, also have an outlet pipe (16) on valve gap (14) limit.

Images