CN2751186Y

CN2751186Y - Slowly closing air-inlet and air-outlet valve for open barrel

Info

Publication number: CN2751186Y
Application number: CN 200420076983
Authority: CN
Inventors: 王洪运; 吕新泽; 余芳
Original assignee: Hubei Hongcheng General Machinery Co ltd
Current assignee: Hubei Hongcheng General Machinery Co ltd
Priority date: 2004-10-15
Filing date: 2004-10-15
Publication date: 2006-01-11
Anticipated expiration: 2014-10-15

Abstract

The utility model relates to a slowly-closed air-inlet-outlet valve for open barrels, which comprises a valve body, a valve cover and a floating barrel which is arranged in the valve body, wherein the floating barrel is designed into a structure that the upper part is closed and the lower part is open, and a one-way air-saving valve is connected to the valve cover; a guide rod which is arranged on the upper part of the floating barrel is arranged in a piston cylinder, and connected with a piston and a spring; a piston cover is arranged on the piston cylinder, and the one-way air-saving valve is composed of an air-saving screw, a limiting core which is arranged on the piston cylinder and a steel ball. The utility model makes the wall thickness and the specific weight of the floating barrel of a sinking-floating component reduced, and can also controls the rising speed of the floating barrel of the sinking-floating component. The consequence that the floating barrel is impacted upwards and the sealing surface is damaged when large quantity of water rises in a rush is avoided.

Description

Opening barrel Slow Close air inlet and exhaust valve

One, technical field

The utility model relates to valve, particularly relates to air inlet and exhaust valve.

Two, background technique

Owing to air inlet and exhaust valve works sink-float part lifting realization exhaust by buoyancy of water, therefore require the proportion of the proportion of valve sink-float part less than water, practical experience proves, the proportion of sink-float part is better between 0.6-0.75, otherwise, when the valve exhaust is finished, the sink-float part just can not float throttle down and valve is produced and leaks during water-filling.Traditional sink-float part keg float is a full-enclosed structure, for the bigger high pressure valve of pressure, sink-float part keg float will bear the pressure that equates with valve pressure, therefore its wall thickness requires thicklyer, otherwise keg float can be not withstand voltage and break, so, after the keg float wall thickness increased, whole proportion was just very big, so limited the manufacturing of high pressure air inlet and exhaust valve.

Three, summary of the invention

The purpose of this utility model is to provide a kind of opening barrel Slow Close air inlet and exhaust valve, and it is high pressure a kind of easy to manufacture, simple in structure, bigbore high pressure air inlet and exhaust valve.

The technical solution of the utility model realizes as follows:

The utility model includes the keg float (3) in valve body (1), valve gap (2) and the valve body (1), it is characterized in that, keg float (3) is top closure, lower openings structure, and the unidirectional air throttle of piston/cylinder (8) (7) is arranged on the valve gap (2), keg float (3) top has guide rod (4) to be connected with piston (6), and spring (5) is arranged at the piston bottom, and a solar term screw (10) is arranged on the piston cap (9), spacing core (11) is on the top of piston/cylinder (8), and steel ball (12) is in the bottom of spacing core (11).

Be called the sink-float part after keg float (3), guide rod (4), piston (6) combination.

Advantage of the present utility model is as follows:

1. because sink-float part keg float of the present utility model adopts the top sealing, the structural type of lower openings, behind the keg float pressurized, enter the interior buoyancy that produces of bucket bottom air enters from the bottom in the press water compacting barrel keg float wall thickness is only required that top has enough intensity to get final product, other position wall thickness can very thin (1-2mm gets final product) so, the weight of keg float can significantly alleviate, and the proportion of sink-float part is reduced.

2. because after having increased the buoyancy secondary spring on the sink-float part keg float, having remedied because of a small amount of overweight problem of sink-float part, the utility model reaches the purpose that proportion reduces.

3. owing to after the utility model increased unidirectional air throttle, can control the speed that sink-float part keg float rises, keg float is slowly risen, cause keg float upwards to impact when having avoided sharply rising, damage sealing surface and produce the consequence of noise because of big water gaging.

Four, description of drawings

Fig. 1: structural representation during the utility model anhydrous (advancing) exhaust (during air inlet among the figure arrow opposite);

Fig. 2: structural representation when the utility model has water-stop;

Fig. 3: the utility model I place enlarged view.

Five, embodiment

Among Fig. 1-2: be connected with a valve gap (2) above the valve body (1), keg float (3) in the valve body (1) is the top sealing, lower openings shape is connected with a unidirectional air throttle (7) on the valve gap (2), the guide rod (4) on keg float (3) top extend in the piston/cylinder (8) and with piston (6) and links to each other, spring (5) is arranged at piston (6) bottom, when valve air inlet keg float (3) descended, piston (6) was descending, and piston cavity is by unidirectional air throttle (7) tonifying Qi fast, keg float (3) falls rapidly; When the valve exhaust, the interior water level of valve body (1) rises, the interior air of compression keg float (3), and when keg float (3) rose, piston (6) was up, and piston cavity gas is through unidirectional air throttle (7) exhaust.Its A is an exhaust airstream, and B is a pressurized air, and C is a press water.

Among Fig. 3: be connected with a piston cap (9) above the piston/cylinder (8), a pore arranged on the piston cap (9), on solar term screw (10) is arranged, the top of piston/cylinder (8) has one spacing core (11) is arranged; The position of motion when its restriction steel ball (12) is air-breathing.

After gas sucked from aperture, steel ball (12) moved upward during one-way throttle valve (7) air inlet, and air enters in the piston/cylinder (8) through aperture, and piston (6), keg float (3) on the guide rod (4) are in time moved down, and valve is finished intake process.

Among Fig. 2,, after water enters valve body (1), compress air in the opening barrel, keg float (3) is moved up,, make keg float (3) seal valve by spring (5) power when the valve air is discharged.Simultaneously piston (6) is up, and gas is discharged through unidirectional air throttle (7) in the cylinder block, regulates solar term screws (10), just can the interior air rate of outflow of control cylinder, also just controlled keg float (3) speed uplink.This process is that valve changes the Slow Close sealing stage by exhaust.

Claims

A kind of opening barrel Slow Close air inlet and exhaust valve, include the keg float (3) in valve body (1), valve gap (2) and the valve body (1), it is characterized in that, keg float (3) is top closure, lower openings structure, and the unidirectional air throttle of piston/cylinder (8) (7) is arranged on the valve gap (2), keg float (3) top has guide rod (4) to be connected with piston (6), spring (5) is arranged at the piston bottom, a solar term screw (10) is arranged on the piston cap (9), spacing core (11) is on the top of piston/cylinder (8), and steel ball (12) is in the bottom of spacing core (11).