CN2494896Y

CN2494896Y - Floator valve

Info

Publication number: CN2494896Y
Application number: CN 01246785
Authority: CN
Inventors: 戚晖
Original assignee: Sino Foreign Joint Venture Ningbo Aimeike Copper Valve Co ltd
Current assignee: Sino Foreign Joint Venture Ningbo Aimeike Copper Valve Co ltd
Priority date: 2001-07-27
Filing date: 2001-07-27
Publication date: 2002-06-12
Anticipated expiration: 2011-07-27

Abstract

The utility model discloses a floater valve used for the automatic control over the water level of the water tank. The utility model comprises a valve, a piston, a compressing cover, a spring seat, a spring, a connecting cap, a rear cover, a small shell, an airproof piece, a plunger, a curved panel, a floating ball, a filter and so on. The filter is arranged in front of a main water outlet of the valve body. The valve body stretches to form a slanting valve body, in which a filtering net with the outer end sealed by a valve cover and the inner end tightened with the inner wall of the valve body is arranged. The design of the utility model integrates the filter with the floater valve, which changes the tie-in connecting method of the original technology. The utility model has the advantages of simple and compact structure, material saving, simple founding process, convenient installation and so on. Because of the slanting-installed filter, the utility model has better filtering effectiveness. And the operation of the floater valve is stable and reliable.

Description

Float valve

Technical field

The utility model relates to the water level float valve of control automatically.

Background technique

Roof tank must have certain water level could satisfy user's water downstairs, and float valve is adopted in the automatic control of cistern water level usually, control the cistern water level height according to the design of intake-outlet sectional area and the sink-float of ball float, cistern water level is controlled on the certain altitude position all the time.The pressure that enters float valve spring blocking seat aperture and influence active chamber for the oxide of avoiding peeling off in silt foreign material in the tap water and the galvanized pipe is set up, make the float valve work effect out of hand of being obstructed, usually the place ahead at float valve is provided with filter on inlet pipeline, filter and float valve are the stand-alone products of two splits, in pipeline, connect by joint, make complex structure, pipeline prolongs, and inconvenience is installed.

Summary of the invention

Problem to be solved in the utility model is that filter and float valve are designed to make up the disjunctor pattern, with the simplification floating ball valve structure with to the better filtering effect of silt foreign material.

Embodiment of the present utility model is: float valve, one valve body with water intake and main water outlet is arranged, be provided with the piston that opens and closes main water outlet in the valve body, piston nose is provided with by the fixing seal ring of gland, piston rear end is sealedly connected with the spring seat that has ostium excurrens by spring push, valve rear end is provided with by the bonnet that has through hole that connects the cap sealing and fixing, forms the active chamber of area greater than the valve inleting water mouth; Bonnet connects the small shell with auxiliary waterexit mouth, be provided with the diaphragm seal and the plunger and hinged that open and close the auxiliary waterexit mouth in the small shell with small shell, and the bent plate that the promotion plunger moves connects ball float, it is characterized in that described valve body is provided with filter in the place ahead of main water outlet, filter has the oblique valve body of a diagonally extending, is provided with filter screen that connected by the end valve bonnet seal, inner and that valve interior wall links closely in the body.

Compared with prior art, the utility model filter and float valve are designed to make up disjunctor, changed the structural type of past with the joint connection, make float valve have advantages such as designs simplification, compactness, material-saving, casting technique be simple, easy for installation, from filtering effect, because filter is obliquely installed, filtering effect is better, make the oxide that silt foreign material and galvanized pipe peel off in the water all be blocked in the filter, elimination guarantees that to the blocking phenomenon of spring seat ostium excurrens the float valve working stability is reliable.

Description of drawings

Accompanying drawing 1 has provided the utility model structural representation.

Embodiment

Embodiment is specifically described the utility model again below with reference to accompanying drawing.

As shown in Figure 1, float valve includes a valve body that is connected with inlet pipeline (1), this valve body has water intake (3) and main water outlet (25), both sectional areas equate, axis is orthogonal, and main water outlet sectional shape is rectangle, and its long side direction is vertical with valve axis, has so both guaranteed the water inlet and outlet balance, piston stroke is reduced, make compact structure, improve working stability.

Be provided with the tubular piston (7) that opens and closes main water outlet in the valve body (1), be embedded with retaining mud collar (6) near the valve interior wall groove main water outlet, prevent that dirt from entering.Piston nose is provided with by the fixing seal ring (5) of the gland that is threaded (4), prevents to leak after main water outlet from closing.

Valve body is provided with filter in the place ahead of main water outlet, filter has the oblique valve body (28) of a diagonally extending, tilt angle alpha=50 °-70 °, and ° be most preferred embodiment with α=60, be provided with the inner filter screen (2) that links closely with valve interior wall in the body, outlet end is provided with seal ring (27) and valve gap (26), because filter screen is held in valve interior wall, when water enters from the valve inleting water mouth, at first pass through filter, the oxide that grains of sand dirt and galvanized pipe are peeled off is filtered and blocks, and avoids entering in the piston.

Piston rear end is provided with the spring seat that has ostium excurrens (24) (8) by spring (13) pushing tow, and spring seat is connected with piston thread, is provided with bowl-type circle (9) formation and is tightly connected on its surface of contact.

Valve rear end be provided be threaded connect cap (10), and seal ring (11) and the bonnet (12) that has a through hole be pressed on the valve rear end face, make and form the active chamber (23) of the area of sealing between spring seat and the bonnet much larger than the water intake area, spring just is located between spring seat and the bonnet, guarantees to be lower than 0.2Kg/cm in water pressure ²Situation under main water outlet be in closed condition all the time, avoid the water tank spill and leakage.

The small shell (22) that has auxiliary waterexit mouth (21) is threaded with bonnet, be provided with diaphragm seal (14) and plunger (15) in the small shell, both setting-in one, promoting plunger, to move, open and close the bent plate (16) of auxiliary waterexit mouth hinged by cotter pin (17) and small shell, bent plate one end stretches into plunger, and the other end is connected ball float (18) by nut (20) with lever (19).

The utility model is when water level is low, ball float falls, bent plate promotion plunger moves to right when falling, drive diaphragm seal and break away from bonnet, the interior low amounts of water of active chamber is discharged by the auxiliary waterexit mouth through the bonnet through hole, active chamber pressure is reduced, under the pipeline effect of water pressure, piston moves right, and drives gland and separates with water intake with seal ring, and main water outlet just is opened and discharges filtered water.When water level rises to certain altitude, ball float rises thereupon, plunger and diaphragm seal are moved to left seal the auxiliary waterexit mouth with bonnet contact seal, this moment, the active chamber internal pressure increased suddenly, because the active chamber area is much larger than the valve inleting water open area, so piston is moved to the left, and makes seal ring and gland and the contact seal of valve inleting water mouth, main water outlet is closed, and reaches water level and controls purpose automatically.

Claims

1. float valve, one valve body (1) with water intake (3) and main water outlet (25) is arranged, be provided with the piston (7) that opens and closes main water outlet in the valve body, piston nose is provided with by the fixing seal ring (5) of gland (4), piston rear end is sealedly connected with the spring seat that has ostium excurrens (24) (8) by spring (13) pushing tow, valve rear end is provided with by the bonnet that has through hole (12) that connects cap (10) sealing and fixing, forms the active chamber (23) of area greater than the valve inleting water mouth; Bonnet connects the small shell (22) with auxiliary waterexit mouth (21), be provided with the diaphragm seal (14) and the plunger (15) and hinged that open and close the auxiliary waterexit mouth in the small shell with small shell, and the bent plate (16) that the promotion plunger moves connects ball float (18), it is characterized in that described valve body is provided with filter in the place ahead of main water outlet (25), filter has the oblique valve body (28) of a diagonally extending, is provided with filter screen (2) that be tightly connected by end valve gap (26), inner and that valve interior wall links closely in the body.

2. float valve according to claim 1 is characterized in that described oblique valve body (28) and valve body (1) axis angle α=50 °～70 °.