CN2186331Y

CN2186331Y - Liquid control valve

Info

Publication number: CN2186331Y
Application number: CN 93246469
Authority: CN
Inventors: 唐志中
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-16
Filing date: 1993-12-16
Publication date: 1994-12-28
Anticipated expiration: 2003-12-16

Abstract

The utility model relates to a liquid control valve, which can be used for tightly closing a water inlet by using the principle of liquid pressure difference, the indirect action of the buoyancy force of a ball float, and the combined action of the self buoyancy force of a piston valve disk filled with water in a valve body and the elastic force of a spring. The product is mainly made of glass fiber reinforced plastic. The bad phenomena of using metal materials in the prior art, such as large volume, bulkiness, high cost, untight water seal in operation, serious leakage, proneness of rustiness, generation of harmful matters, etc., can be overcome. The utility model has the advantages of small size, light weight, corrosion resistance, high strength, facility, reliability, smooth opening, tight closing, convenient maintenance and installation, long service life, etc., and the liquid control valve is an ideal device for controlling liquid levels.

Description

Liquid control valve

The utility model relates to the fluid level control valve in a kind of fluid level control device.

The control valve that sell the existing market, volume are big and sealing is not firm, leak serious.The structure that adopts is that lever adds ball float, the direct water blockoff of valve, and this structure often when fluid pressure is big, only relies on ball float self buoyancy, water intake can not be blocked, and causes leakage easily.The used raw material of component are based on metallic material.Not only heaviness but also cost costliness, in use, because material aging and corrosion are more serious, particularly the part of nonferrous materials also can produce harmful matter after the corrosion, drinks water tank if be loaded on, and also can bring certain influence to health.

The purpose of this utility model is to utilize the fluid pressure difference principle, the letter of buoyancy of utilization ball float connects effect, is full of behind the water self buoyancy by the piston valve disc again and adds the spring force acting in conjunction, and water intake is tightly stopped up, material therefor is based on nonmetallic material, to overcome the deficiencies in the prior art.

The utility model is achieved in that the end that it is included in lever is connected with ball float, does not have water intake on the inner chamber top of valve body, does not encircle tank under the water intake.There are not a plurality of osculums on the ring tank perisporium, in the inner chamber of valve body, be equipped with the piston valve disc that can slide up and down along internal chamber wall, top at the piston valve disc is equipped with seal ring, in the center hole of piston valve disc, there is not gland on the seal ring, the center of gland is shaped on the water inlet, when moving on the piston valve disc seal ring can with the ring tank above the formation sealing surface, inner chamber at the piston valve disc is provided with a spring, the upper end of spring is assigned in the piston plate inner chamber, the spring lower end is assigned in the groove above the base, base is fixed by bolts to the following formation integral body of valve body, the lower edge of base is provided with a boss, be shaped in the boss by body cavity and lead to the external weep hole of valve body, do not control weep hole in the boss simultaneously and open, pair valve that closes.

Described fluid level control valve, the inner chamber of valve body has a convex shoulder hole between ring tank and piston hole, and the piston valve disc is empty stomach " protruding " font, and piston valve disc top places body cavity convex shoulder hole, and the neutral position of piston valve disc bottom does not have seal ring and is assigned in the piston hole.

Described fluid level control valve, the gland that is equipped with on the piston valve disc top is " umbrella shape ", " handle of umbrella " of gland located the system screw thread, " umbrella handle " of gland is assigned in the center hole at piston valve disc top, by the screw thread on " handle of umbrella " of gland, gland, seal ring are fastened on the top of piston valve disc with nut.

Described fluid level control valve, be provided with in the boss of base edge by inner chamber and lead to the external weep hole of valve body, the duct becomes " L " font, change the corner in the duct and be provided with a pair valve, and paying valve is assigned in the set bush hole of base lower edge boss, pay valve with end face that the duct contacts on be provided with sealing gasket, the other end of paying valve is connected on the certain position of lever, the other end of lever is connected below the base becomes balance pivot on the boss, pay valve under the ball float buoyancy of lever one end drives, can be below base move up and down the switching of control weep hole in the set bush hole of boss.

Described fluid level control valve is connected with the case that anti-sealing spatters with screw on the shoulder of valve body top.

Described fluid level control valve, most of component adopt glass fibre reinforced plastics to make.

Working procedure of the present utility model is: after liquid injects water intake with certain pressure, fluid pressure acts on the umbrella shape gland, thereby driving spring compression, the piston valve disc moves down, liquid flows into liquid tank from water outlet after being full of the ring tank, and there is a spot of liquid to go into piston valve disc inner chamber simultaneously by the gland orifice flow, and through weep hole inflow water storage box, ball float rises with liquid in the liquid tank, during the reserves in fluid reaches liquid tank, stipulated, move on one end of ball float drive lever, thereby drive to pay on the valve and move and progressively close weep hole, stop the liquid of piston valve disc inner chamber to flow out, at this moment the liquid of piston valve disc inner chamber increases gradually and fills with, and the piston valve disc is at the inner chamber buoyancy of water, under the acting in conjunction of the elastic force of spring, finally overcome the fluid pressure of coming in, make seal ring water outlet be stopped up, thereby satisfy liquid in liquid tank, to reach the reserves of regulation and close the water outlet water inlet in company with moving on the piston valve disc from water intake.

Advantage of the present utility model is owing to employing fluid pressure difference principle, the source of not consuming energy, and controlling liquid resets automatically, have that volume is little, in light weight, corrosion-resistant, intensity is high, flexibility and reliability, do not produce harmful matter, harmless, unimpeded during unlatching, tight when closing, no phenomenon of striking water, stable action, not influenced by liquid fluctuating, simple installation is easy to maintenance simultaneously, there is not " stuck " phenomenon, long service life.

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is a section of structure of the present utility model.

Among Fig. 1, on valve body 1 top shoulder, be fastened with case 7 with screw 22, in case the liquid splash that osculum 5 flows out, valve body 1 inner chamber has water outlet 23, be shaped on connecting thread on the water outlet 23, so that connect with relevant fluid pipeline, water outlet is shaped on ring tank 21 for 23 times, there are not 4 osculums 5 on ring tank 21 perisporiums, ring tank 21 belows are shaped on piston hole 20, between ring tank 21 and piston hole 20, a convex shoulder hole is arranged, in piston hole 20, be provided with piston valve disc 8, piston valve disc 8 is empty stomach " protruding " font, the top is shaped on center hole, piston valve disc 8 tops are assigned in the convex shoulder hole, the bottom neutral position of piston valve disc 8 does not have seal ring 9 to be assigned in the piston hole 20, piston valve disc 8 tops are equipped with seal ring 4, the gland 3 that seal ring 4 is provided with, gland 3 is " umbrella shape ", the center of gland 3 is shaped on water inlet 2, " handle of umbrella " of gland 3 locates to be shaped on screw thread, " umbrella handle " of gland 3 is assigned in the center hole at piston valve disc 8 tops, by the screw thread on " handle of umbrella ", with nut 6 with gland 3, seal ring 4 is fastened on the top of piston plate 8, inner chamber at piston valve disc 8 is provided with spring 10, the upper end of spring 10 is assigned in the inner chamber of piston valve disc 8, the lower end of spring 10 is assigned in the circular groove of base 13, base 13 usefulness bolts 19 are fastened on the following formation integral body of valve body 1, the lower edge of base 13 is provided with a boss 14, be shaped in the boss 14 by valve body 1 inner chamber and lead to the external weep hole 11 of valve body 1, the duct becomes " L " font, be provided with a pair valve 15 in the corner, duct, pay valve 15 and be provided with sealing gasket at a end with the contacting point, duct, the other end of paying valve 15 is connected on the certain position of lever 17, one end of lever 17 is connected with ball float 18, the other end is connected on base 13 boss 14 with link, ball float 18 rise with liquid level and on move, an end that drives lever 17 moves on fulcrum, move until sealing weep hole 11 on drive paying in set lining 16 holes of valve 15 boss 14 base 13 below, when ball float 18 when cistern water level descends, ball float descends thereupon, an end that drives lever 17 moves down around fulcrum, drive to pay in set lining 16 holes of valve 15 boss 14 below base 13 and move down, make weep hole 11 unimpeded.

Claims

1, a kind of fluid level control valve, the end that it is included in lever (17) is connected with ball float (18), it is characterized in that being provided with water intake (23) on the inner chamber top of valve body (1), water intake (23) has ring tank (21), ring tank (21) perisporium is provided with a plurality of osculums (5), in the inner chamber of valve body (1), be equipped with the piston valve disc (8) that can slide up and down along internal chamber wall, be equipped with seal ring (4) at the top of piston valve disc (8), in the center hole of piston valve disc (8), seal ring (4) is provided with gland (3), the center of gland (3) is shaped on water inlet (2), by nut (6) with gland (3), seal ring (4) is fastened on the top of piston valve disc (8), when moving on the piston valve disc (8) seal ring (4) can with the ring tank (21) above the formation sealing surface, inner chamber at piston valve disc (8) is provided with a spring (10), the upper end of spring (10) is assigned in the inner chamber of piston valve disc (8), the lower end of spring (10) is assigned in the top groove of base (13), base (13) is whole with the following formation that bolt (19) is fixed on valve body (1), the lower edge of base (13) is provided with a boss (14), the inner chamber that is shaped in the boss (14) by valve body (1) leads to the external weep hole (11) of valve body (1), is provided with control weep hole (11) in the boss (14) simultaneously and opens, pair valve (15) that closes.

2, fluid level control valve according to claim 1, the inner chamber that it is characterized in that valve body (1) has a convex shoulder hole between ring tank (21) and piston hole (20), and piston valve disc (8) is empty stomach " protruding " font, the top of piston valve disc (8) places valve body (1) inner chamber convex shoulder hole, and the neutral position of the bottom of piston valve disc (8) is provided with seal ring (9) and is assigned in the piston hole (20).

3, fluid level control valve according to claim 1, it is characterized in that the gland (3) that piston valve disc (8) top is equipped with is " umbrella shape ", " handle of umbrella " of gland (3) locates to be shaped on screw thread, " umbrella handle " of gland (3) is assigned in the center hole at piston valve disc (8) top, by the screw thread on " handle of umbrella ", gland (3), seal ring (4) are fastened on the top of piston valve disc (8) with nut (6).

4, fluid level control valve according to claim 1, it is characterized in that: be provided with in the boss (14) at base (13) edge by inner chamber and lead to the external weep hole (11) of valve body (1), the duct becomes " L " font, change the corner in the duct and be provided with a pair valve (15), and paying valve (15) is assigned in set lining (16) hole of base (13) lower edge boss (14), pay valve (15) and on that face that contacts with the duct, be provided with sealing gasket (12), the other end of paying valve (15) is connected on the certain position of lever (17), the other end of lever (17) is connected on the following boss (14) of base (13) becomes balance pivot, pay valve (15) under ball float (18) buoyancy of an end of lever (17) drives, can be below base (13) move up and down the opening of control weep hole (11) in set lining (16) hole of boss (14), close.

5, fluid level control valve according to claim 1 is characterized in that, is connected with the case (7) that anti-sealing spatters with screw (22) on the shoulder of valve body (1) top.

6, fluid level control valve according to claim 1 is characterized in that most of component raw material are that glass fibre reinforced plastics is made.