CN202531984U

CN202531984U - Exhaust valve provided with plug and guide pillar

Info

Publication number: CN202531984U
Application number: CN 201220012478
Authority: CN
Inventors: 许国荣
Original assignee: TONGLING GUOFANG PLUMBING TECHNOLOGY Co Ltd
Current assignee: TONGLING GUOFANG PLUMBING TECHNOLOGY Co Ltd
Priority date: 2012-01-12
Filing date: 2012-01-12
Publication date: 2012-11-14
Anticipated expiration: 2022-01-12

Abstract

The utility model discloses an exhaust valve provided with a plug and a guide pillar. The exhaust valve includes a valve body, and a valve cap connected with the top of the valve body, wherein the plug is glidingly mounted in a step cavity mouth at the center of the top of the valve cap, the bottom end of the plug stretches into a through cavity of the valve body and plugs a side wall at the bottom end to form an annular step, a spring is connected between the inner wall of the top of the valve body and the annular step of the bottom end of the plug, an exhaust port of an exhaust port passage in the plug is arranged on the side wall of the plug, a lower cavity mouth is arranged at the bottom of the valve body, the inner wall at the bottom of the valve body is connected with the guide pillar, a float is arranged in the through cavity of the valve body, a fixing seat is mounted at the upper part of the float, the top of the float is connected with a plurality of push rods, the float is pressed downwards at the lower cavity mouth of the valve body, and the fixing seat of the float is glidingly mounted on the guide pillar. The exhaust valve is provided with a simple structure and can be realized easily, the float can reset timely and precisely, and the performance of the exhaust valve is improved.

Description

A kind of outlet valve with obstruction and guide pillar

Technical field

The utility model relates to the outlet valve field, is specially a kind of outlet valve with obstruction and guide pillar.

Background technique

Water heating system generally adopts water as the medium that transmits heat; Usually be dissolved with certain air in the water; When water temperature raise, the gas in the water can be separated from water gradually, and get together gradually formation big bubble even gas column; Therefore, generally need in the water heating system to adopt outlet valve that the gas in the water is discharged.Outlet valve generally by valve body be arranged on float in the valve body etc. and constitute; Gas is from valve body lower portion accent entering valve body and make the float come-up of blocking the valve body lower portion accent to realize exhaust, and the valve body lower portion accent was blocked in float falling under action of gravity again after exhaust finished.In the existing technology, vent valve float is behind gas pressure effect float downward, and often return speed is slower, influences the proper functioning of outlet valve, and the position is prone to skew during the float return, causes the outlet valve can't proper functioning.

The model utility content

The utility model purpose provides a kind of outlet valve with blocking plate, and slow to solve existing technology vent valve float return speed, the position is prone to the problem of skew during the float return.

In order to achieve the above object, the technological scheme that the utility model adopted is:

A kind of outlet valve with obstruction and guide pillar comprise the valve body with cavity, and flange is tightly connected at the valve gap at valve body top; Valve gap has the center cavity; The top of valve gap has center step accent, it is characterized in that: be slidingly fitted with the obstruction of blocking valve gap center step accent in the step accent of said valve gap center, the obstruction bottom is stretched in the valve body cavity and is stopped up the bottom sidewall and forms ring-shaped step; Be connected with spring between the ring-shaped step of said valve body top inner wall and obstruction bottom; Have the center vent in the said obstruction, and the relief opening that stops up vent is arranged on and stops up on the sidewall, said valve body bottom has the following accent of undergauge; The valve body bottom interior wall of following accent both sides is connected with vertical guide pillar respectively; But be provided with the float of free floating in the valve body cavity, buoy upper is equipped with fixed base, and the float top is connected with a plurality of vertical replacing at the push rod that stops up on the bottom; Said float is being pressed in accent place under the valve body under the self gravitation effect, and the fixed base of float is slidingly mounted on the guide pillar.

The utility model is simple in structure, is easy to realize.Be provided with in the valve gap slidably and stop up; Float is floated along the guide pillar on the valve body bottom interior wall by gas pressure during exhaust; The push rod at float top will stop up upwards top, and the relief opening of vent exposes from valve gap in stopping up, thereby carries out exhaust; Be blocked in after exhaust finishes under gravity and the spring action and glide; And replace the push rod at float top, be pressed on the seal ring thereby float can in time be reset to along the guide pillar on the valve body bottom interior wall, and accurately block the endoporus of seal ring.Float can in time accurately reset in the utility model, has improved the performance of outlet valve.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

As shown in Figure 1.A kind of outlet valve with blocking plate comprises the valve body 1 with cavity, and flange is tightly connected at the valve gap 2 at valve body 1 top; Valve gap 2 has the center cavity; The top of valve gap 2 has center step accent 3, is slidingly fitted with the obstruction 4 of blocking valve gap 2 center step accents 3 in the valve gap 2 center step accents 3, stops up 4 bottoms and stretches in valve body 1 cavity and stop up 4 bottom sidewalls and form ring-shaped step 5; Be connected with spring 6 between the ring-shaped step 5 of valve body 1 top inner wall and obstruction 4 bottoms; Stop up in 4 and have center vent 7, and the relief opening that stops up vent 7 is arranged on and stops up on 4 sidewalls, valve body 1 bottom has the following accent 8 of undergauge; Valve body 1 bottom interior wall of following accent 8 both sides is connected with vertical guide pillar 9 respectively; But be provided with the float 10 of free floating in valve body 1 cavity, float 10 tops are equipped with fixed base 12, and float 10 tops are connected with a plurality of vertical replacing at the push rod 11 that stops up on 4 bottoms; Float 10 is pressed in 1 time accent 8 place of valve body under the self gravitation effect, and the fixed base 12 of float 10 is slidingly mounted on the guide pillar 9.

Claims

1. the outlet valve with obstruction and guide pillar comprise the valve body with cavity, and flange is tightly connected at the valve gap at valve body top; Valve gap has the center cavity; The top of valve gap has center step accent, it is characterized in that: be slidingly fitted with the obstruction of blocking valve gap center step accent in the step accent of said valve gap center, the obstruction bottom is stretched in the valve body cavity and is stopped up the bottom sidewall and forms ring-shaped step; Be connected with spring between the ring-shaped step of said valve body top inner wall and obstruction bottom; Have the center vent in the said obstruction, and the relief opening that stops up vent is arranged on and stops up on the sidewall, said valve body bottom has the following accent of undergauge; The valve body bottom interior wall of following accent both sides is connected with vertical guide pillar respectively; But be provided with the float of free floating in the valve body cavity, buoy upper is equipped with fixed base, and the float top is connected with a plurality of vertical replacing at the push rod that stops up on the bottom; Said float is being pressed in accent place under the valve body under the self gravitation effect, and the fixed base of float is slidingly mounted on the guide pillar.