CN2365478Y

CN2365478Y - Automatic exhausting antifreezing water valve

Info

Publication number: CN2365478Y
Application number: CN 98251234
Authority: CN
Inventors: 杨军山
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-30
Filing date: 1998-12-30
Publication date: 2000-02-23
Anticipated expiration: 2008-12-30

Abstract

The utility model provides an automatic exhausting anti-freezing water valve. In a valve core screw shaft rod which is connected with the valve body, a top hole whose lower part is a circular column-cone is equipped along the shaft axis from bottom to top, and a straight circular hole is connected to the transversal through hole on the upper part of the valve core rod, and the bottom of the valve core circular column-cone top hole is equipped with a circumferential flute in which an elastic supporting sheet is inlaid, and in the valve core circular column-cone top hole positioned on the upper part of the supporting sheet, a piston of prism cone point is equipped in movable fit. The utility model is novel in structure and convenient in use, and it can efficiently solve the freezing of water pipes and water valves, and it is suitable to the break hiatus water supply system in extensive rural districts and is a late-model anti-freezing water valve.

Description

The automatic vent type Anti-freezing water valve

The utility model relates to a kind of valve, especially a kind of water valve with the screw axis spool.

In people's daily life, the valve that the valve that is generally used for tap water mainly is made up of the spool of valve body and band screw axis, cooperating the unlatching that realizes water valve or close by rotary spool and valve body internal orifice seat.Because existing valve is closed the back or when stopping supplying water, storing in the ground water inlet before the valve has water, especially adopts to be interrupted in vast rural area and supplies water using up, winter temperature is low, easily cause water valve to water pipe to freeze, sometimes even with water pipe from freezing crack or water valve is freezing, cause inconvenience to use.

The purpose of the utility model provides a kind of improved water valve, makes its energy antifreeze, easy to use.

For achieving the above object, the technological scheme that the utility model is taked is: will be that cylinder vertex of a cone hole is communicated to valve core rod upper lateral through hole by clear opening along the bottom-up bottom of making of shaft axis with the spool of screw axis, make setting-in open type elasticity supporting spring in the circumferential groove in bottom, valve core rod cylinder vertex of a cone hole, the cylinder vertex of a cone hole that is positioned at supporting spring top is the load piston column movingly, consists of the automatic vent type Anti-freezing water valve.During use, water holder piston column after the water in the water pipe is to the valve with the sealing of the vertex of a cone hole in the valve core rod, just can carry out the unlatching of water valve or closes by rotary spool.When stopping supplying water, hydraulic pressure reduces in the water pipe, and external pressure apply piston post descends the through hole in the valve core rod is opened ventilation, makes the interior drawdown of water pipe get back to and freezes in the following pipeline of layer.

Because the utility model has adopted and installed piston column in valve core rod, can open exhaust automatically or close according to the hydraulic pressure size, effectively solved freezing of water pipe and water valve, its novel structure, easy to use, particularly being applicable to the interruption water system in vast rural area, is a kind of novel Anti-freezing water valve.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the sectional view of the utility model embodiment concrete structure.

Fig. 2 is the enlarged view of piston column among Fig. 1.

Fig. 3 is the plan view of Fig. 2 piston column.

Fig. 4 is that Fig. 1 is the enlarged view of overlooking of elasticity supporting spring.

Reference character: 1 spool, 2 valve bodies, 3 piston columns, 4 elasticity supporting springs.

Embodiment as shown in Figure 1, the utility model comprises spool (1), piston column (3) and the elasticity supporting spring (4) of valve body (2), band screw axis, it is that cylinder vertex of a cone hole is communicated to valve core rod upper lateral through hole by straight circular hole that the screw spindle of spool (1) of valve body (2) of will being connected is shaped on the bottom along shaft axis, and be shaped on circumferential groove in spool (1) axostylus axostyle cylinder vertex of a cone hole bottom, setting-in open type elasticity supporting spring (4) in the groove is positioned at the cylinder vertex of a cone hole load piston column (3) movingly of spool (1) axostylus axostyle on supporting spring (4) top.

As accompanying drawing 2, shown in Figure 3, the novel piston column (3) of this reality is the piston column on prism circular cone top, or is shaped on cylindrical directional post in cone tip conjuncted adding again.Fig. 2 embodiment is a hexagonal prism, certainly, also can be the piston column on four bank or ridge, five rib bodies or other multi-arris body or oblate cylinder or arc prism circular cone top.Piston column (3) is glue post of being made by rubber or plastic column or the rubber and plastic post of being made by plastic materials, and the piston column made from other nonmetallic material.

Claims

1, a kind of automatic vent type Anti-freezing water valve, the spool that comprises valve body (2) and band screw axis, it is characterized in that this water valve also comprises elasticity supporting spring (4) and piston column (3), spool is that to be shaped on the bottom at its screw spindle from bottom to top along shaft axis be that the bottom, cylinder vertex of a cone hole of cylinder vertex of a cone hole and spool (1), the spool (1) that is communicated to valve core rod upper lateral through hole by straight circular hole is shaped on setting-in open type elasticity supporting spring (4) in circumferential groove, the groove, is positioned at the cylinder vertex of a cone hole load piston column (3) movingly of spool (1) axostylus axostyle on supporting spring (4) top.

2, Anti-freezing water valve according to claim 1 is characterized in that piston column (3) is the piston column on prism circular cone top or the piston column on oblate post circular cone top or arc prism circular cone top.

3, Anti-freezing water valve according to claim 2, also conjuncted adding, be shaped on cylindrical directional post in vertex of a cone termination to it is characterized in that piston column (3).

4,, it is characterized in that plastic column or rubber and plastic post that piston column (3) is made for the glue post made by rubber or plastics according to claim 2 or 3 described Anti-freezing water valves.