CN2699079Y

CN2699079Y - Automatic exhaust valve

Info

Publication number: CN2699079Y
Application number: CN 200420033781
Authority: CN
Inventors: 龙勇军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-27
Filing date: 2004-05-27
Publication date: 2005-05-11
Anticipated expiration: 2014-05-27

Abstract

The utility model discloses an automatic air exhausting valve. The utility model comprises a valve body, a sealing strip, a floating block, a connecting pair, a sealing ring and a valve seat. The inner top part of the valve body is provided with a convex bed. The lower part of the convex bed is V-shaped. The V-shaped slope is provided with a strip-shaped air exhausting port. The two sides of the valve body are provided with guide convex ribs. The floating block is a rectangular solid. The top part of the floating block is opened with a V-shaped groove. The shape of the V-shaped groove matches with the V-shaped slope of the convex bed. The bottom part of the V-shaped groove is provided with a vertical through hole. The two ends of the top part of the floating block are provided with concave grooves. The sealing strip is V-shaped. The sealing strip is embedment-connected with the V-shaped groove of the floating block. The two ends of the sealing strip are embedded into the concave grooves. The valve seat is provided with a strip-shaped groove. A guide plate is positioned on the strip-shaped groove. The guide plate is fixed together by the valve body and the valve seat. The utility model has the advantages of a simple structure, the big air exhausting, the high reliability, the high flexibility, the self-cleaning function, the uneasy blocking, the little failure and the long service life.

Description

Automatic control pressure vent

Technical field

The utility model relates to a kind of venting gas appliance, especially relates to a kind of automatic control pressure vent.

Background technique

In the fresh water pipeline system of tall building, on-site pipe arrangement, small pumping station, owing to the air that is dissolved with 2% in the water, when discharging, will assemble these little airs in the higher location of pipe-line system, form the airspace section, cause the interruption of water conveying, reduced the conveying capacity of system.Thereby usually automatic control pressure vent is installed at the higher position of pipe-line system, and discharge intrasystem air, improve the transfer efficiency of pipeline.Venting gas appliance in the market adopts traditional floating ball lever mechanical mechanism mostly.Because of the restriction of self structure, relief opening is less, and air displacement is corresponding also very little, is not suitable for the big or more pipe-line system of air quantity of diameter, and fault such as relief opening obstruction, inconvenient maintenance take place easily.Volume is big, Heavy Weight.

Summary of the invention

At above-mentioned defective, the utility model provides the automatic control pressure vent that a kind of simple in structure, air displacement is big, have self-cleaning function.The utility model comprises valve body, Stamping Steel Ribbon, floating block, auxiliary connection, seal ring and valve seat, its structure characteristic is: the inner top at valve body is provided with a boss that the bottom is V-shaped, the V-arrangement inclined-plane is provided with the bar shaped relief opening, and the both sides of valve body are provided with the guiding fin; Described floating block is the cuboid that a top has V-shaped groove, and the V-arrangement inclined-plane of the shape of V-shaped groove and boss is complementary, and the V-shaped groove bottom is provided with a vertical through hole, and the two ends, top of floating block are provided with groove; Stamping Steel Ribbon is V-shaped, is connected with the V-shaped groove of floating block is embedded, and its two ends embed in the groove; Valve seat is provided with a bar-shaped trough, is placed with guide plate on it, and guide plate is fixing jointly by valve body and valve seat.

Angle between two inclined-planes of boss is 90 degree.One tiny turning point is arranged on its inclined-plane, the inclined-plane is divided into two sections parallel inclined-planes.

The utility model has the advantages that: simple in structure, volume is little, and is in light weight, air displacement is big, the exhaust flexibility and reliability.Have self-cleaning function, be difficult for stopping up, fault is few, and is easy to maintenance, long service life.

Description of drawings

Fig. 1 is a structural drawing of the present utility model;

Fig. 2, Fig. 3 are process chart of the present utility model;

Fig. 4 is the structural drawing of valve body;

Fig. 5 is the A-A view of Fig. 4;

Fig. 6 is the worm's eye view of Fig. 4;

Fig. 7 is the structural drawing of floating block;

Fig. 8 is the plan view of Fig. 7;

Fig. 9 is the structural drawing of Stamping Steel Ribbon;

Figure 10 is the plan view of Fig. 9;

Figure 11, Figure 12 are the structural drawing of guide plate;

Figure 13 is the structural drawing of valve seat;

Figure 14 and Figure 15 are respectively the top and bottom perspective views of Figure 13;

Figure 16 is the partial enlarged drawing of Fig. 4.

Embodiment

Automatic control pressure vent, comprise valve body 1, Stamping Steel Ribbon 2, floating block 3, auxiliary connection 4, seal ring 6 and valve seat 7, its structure characteristic is: the inner top at valve body 1 is provided with a boss 1-1 that the bottom is V-shaped, and the V-arrangement inclined-plane is provided with the bar shaped relief opening, and the both sides of valve body 1 are provided with guiding fin 1-2; Described floating block 3 is the cuboid that a top has V-shaped groove, and the V-arrangement inclined-plane of the shape of V-shaped groove and boss 1-1 is complementary, and the V-shaped groove bottom is provided with a vertical through hole 3-2, and the two ends, top of floating block 3 are provided with groove 3-1; Stamping Steel Ribbon 2 is V-shaped, is connected with the V-shaped groove of floating block 3 is embedded, and its two ends embed in the groove 3-1; Valve seat 7 is provided with a bar-shaped trough 7-1, is placed with guide plate 4 on it, and guide plate 4 is fixing jointly by valve body 1 and valve seat 7.

Owing to be provided with guiding fin 1-2, guaranteed that floating block 3 vertically moves up and down, the vertical through hole 3-2 of the V-shaped groove bottom of floating block 3 is used to get rid of the ponding in the V-shaped groove.

Guide plate 4 mainly is with gas shunting, prevents that air-flow from directly impacting floating block 3, and shipper pole motive sealing bar 2 is closed relief opening too early and reduced the exhaust efficiency of automatic control pressure vent on the floating block 3.

Angle between two inclined-planes of boss 1-1 is 90 degree, and a tiny turning point is arranged on its inclined-plane, and the inclined-plane is divided into two sections parallel inclined-planes.

Fig. 1-Fig. 3 shows the working procedure of automatic control pressure vent:

When in the valve body when anhydrous, floating block 3 is on the guide plate 4 and contacts with it, Stamping Steel Ribbon 2 is adsorbed in the V-shaped groove of floating block 3, air in the pipeline is entered by the lower end endoporus of valve seat 7, through guide plate 4 shuntings, enter valve body 1 epicoele from the valve body 1 inner chamber left and right sides, the bar shaped relief opening on the V-arrangement inclined-plane of boss 1-1 is discharged, be in standard-sized sheet and put state this moment, as shown in Figure 1.

Rising along with liquid level in the valve body 1, after the buoyancy that floating block 3 is subjected to increases to certain degree gradually, floating block 3 drives on the Stamping Steel Ribbon 2 and moves, after Stamping Steel Ribbon 2 rises to certain altitude,, rise on Stamping Steel Ribbon 2 lower ends and seal the part relief opening of boss 1-1 lower end because of the suction-operated of flowing gas, Stamping Steel Ribbon 2 upper ends are because of the pulling force on floating block 3 both sides and the acting in conjunction of air-flow adsorption force, the exhaust of open portion relief opening, this moment, automatic control pressure vent was in the part open state, as shown in Figure 2.

Along with the further rising of liquid level in the valve body 1, on continuing, moves floating block 3, and drive Stamping Steel Ribbon 2 and close relief opening gradually, up to the relief opening complete closed, this moment, valve was in full closing state automatically.As shown in Figure 3.

Air in pipe-line system enters valve body 1 inner chamber through 7 times stomidiums of valve seat, assemble gradually on valve body 1 inner chamber top, liquid level descends gradually in the valve body 1, the buoyancy of floating block 3 also descends thereupon, after liquid level and floating block 3 drop to certain altitude, and the two ends of drop-down Stamping Steel Ribbon 2, Stamping Steel Ribbon 2 breaks away from from top to bottom gradually with the V-arrangement inclined-plane of boss 1-1, open the part relief opening, get back to state shown in Figure 2, automatic control pressure vent begins to discharge the air that valve body 1 inner top is assembled.Less or do not have air and continue to enter valve body 1 inner chamber as the air quantity that continues to enter valve body 1 inner chamber this moment in the pipe-line system, then along with the discharge of valve body 1 inner top build-up of air, liquid level also rises thereupon in the valve body 1, and floating block 3 drives Stamping Steel Ribbon 2 again and seals relief opening.

Relatively large air in pipe-line system constantly enters valve body 1 inner chamber, and liquid level further descends in the valve body 1, and floating block 3 descends gradually, and further drop-down Stamping Steel Ribbon 2 is up to opening relief opening fully.Get back to state shown in Figure 1, automatic control pressure vent was in standard-sized sheet again and put state this moment.

So far, automatic control pressure vent is finished its work cycle.

When automatic control pressure vent is in contract fully or fraction open state, if have a large amount of air rapidly to enter valve body 1 inner chamber in the pipe-line system this moment, the air of valve body 1 inner chamber upper top is assembled rapidly, liquid level descends rapidly in the valve body 1, the buoyancy of floating block 3 also descends fast, this moment the water that floating block 3 is not in time discharged in buoyancy and V-shaped groove the acting in conjunction of gravity under, floating block 3 pulling Stamping Steel Ribbons 2 are opened relief opening rapidly up to standard-sized sheet.

Claims

1, a kind of automatic control pressure vent, comprise valve body (1), Stamping Steel Ribbon (2), floating block (3), auxiliary connection (4), seal ring (6) and valve seat (7), it is characterized in that: the inner top at valve body (1) is provided with a boss (1-1) that the bottom is V-shaped, the V-arrangement inclined-plane is provided with the bar shaped relief opening, and the both sides of valve body (1) are provided with guiding fin (1-2); Described floating block (3) is the cuboid that a top has V-shaped groove, and the V-arrangement inclined-plane of the shape of V-shaped groove and boss (1-1) is complementary, and the V-shaped groove bottom is provided with a vertical through hole (3-2), and the two ends, top of floating block (3) are provided with groove (3-1); Stamping Steel Ribbon (2) is V-shaped, and with embedded connection of V-shaped groove of floating block (3), its two ends embed in the groove (3-1); Valve seat (7) is provided with a bar-shaped trough (7-1), is placed with guide plate (4) on it, and guide plate (4) is fixing jointly by valve body (1) and valve seat (7).

2, automatic control pressure vent according to claim 1 is characterized in that: the angle between two inclined-planes of described boss (1-1) is 90 degree.

3, automatic control pressure vent according to claim 1 and 2 is characterized in that: a tiny turning point is arranged on two inclined-planes of described boss (1-1), the inclined-plane is divided into two sections parallel inclined-planes.