CN201281163Y

CN201281163Y - Sliding valve type ball valve

Info

Publication number: CN201281163Y
Application number: CNU200820199908XU
Authority: CN
Inventors: 张建松
Original assignee: YUNNAN YITONG SOLAR ENERGY TECHNOLOGY Co Ltd
Current assignee: YUNNAN YITONG SOLAR ENERGY TECHNOLOGY Co Ltd
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2009-07-29
Anticipated expiration: 2018-10-24

Abstract

The utility model discloses a sliding valve type ball float valve, relating to a sliding valve type ball float valve, of which a liquid channel can automatically open and close. The ball float valve comprises a valve body, a cylindrical hole is arranged in the center of the valve body, a cylindrical valve core which can slide in a reciprocating manner is arranged in the cylindrical hole, a circumferential hole is arranged on the valve core, the circumferential hole is communicated with a liquid inlet end after being communicated with a center hole, ring-shaped sealing ring grooves are respectively arranged at the two ends of the circumferential hole on the valve core along the circular periphery of the valve core, and O-shaped sealing rings are hooped in the sealing ring grooves; a ring-shaped water outlet groove is arranged right above a liquid outlet on the valve body, the diameter of the ring-shaped water outlet groove is slightly larger than that of the circumferential hole, and the water outlet groove is communicated with the liquid outlet; a top rod is fixedly connected at the end part of the valve core, an adjustable screw rod is fixed on the valve body by a rocker and a rocker support, the adjustable screw rod can push the top rod to move, one end of a connecting rod is fixed on the rocker, and the other end of the connecting rod is connected with a floating ball. As the end face sealing of the ball float valve is changed into side sealing, the sliding valve type ball float valve can effectively and reliably close liquid stream; meanwhile, the sealing is reliable, the closing is soft, and sealing pieces cannot be easily damaged.

Description

The sliding valve style float valve

Technical field

The utility model relates to a kind of machinery of controlling liquid level, and open automatically on especially a kind of liquid road, the sliding valve style float valve of closure.

Background technique

At present, known float valve has two kinds, and a kind of to be the buoyancy that utilizes ball float compress the mouth of pipe from end face and block liquid stream by shouldering bar, reaches the purpose of closing liquid stream; Another kind is that the buoyancy of ball float amplifies and to compress the aperture of blocking a guide afterwards by shouldering bar, makes the internal differential pressure balance and reaches the purpose of closing liquid stream.First kind of float valve since end face to compress the impacting force that sealing needs bigger, the impacting force that replaces of degree of tightness usually makes Sealing damage easily in actual applications, is not closed completely.Second kind of float valve is because the pilot hole differential action has reduced the impacting force that need close, but owing to remain end face seal, the pressure that acts on the Sealing does not still reduce, and does not therefore solve the problem that Sealing damages easily.In addition, in the application in water route, because water unholiness, often occur that pilot hole is blocked and situation that float valve was lost efficacy.

Summary of the invention

To be solved in the utility model is exactly the problem that existing float valve Sealing damages easily, and a kind of sliding valve style float valve is provided, and this sliding valve style float valve not only can avoid Sealing to damage, and closes, opens steadily reliable.

Sliding valve style float valve of the present utility model, constitute by ball float and the connecting rod that is attached thereto and the valving of connecting rod end, it is characterized in that valving comprises a valve body, the center of valve body is a columniform hole, a cylindrical spool that slidably reciprocates is housed in the hole, circumferential hole is set on the spool, be communicated with liquid feeding end after circumferentially the hole communicates with center hole, circumferential two ends, hole are provided with the O-ring seal groove along the spool circular periphery respectively on the spool, and hoop has O-ring seals in the o-ring groove; There is an annular water outlet groove that the circumferential bore dia of ratio is bigger the position directly over the valve body upper liquid outlet, and water outlet groove and liquid outlet communicate; The affixed push rod in spool end, adjusting screw is fixed on the valve body by rocking arm and rocker arm support, and adjusting screw can promote push rod and move, and connecting rod one end is fixed on the rocking arm, and the other end is connected with ball float.

Circumferentially the size in hole and number are determined according to liquid feeding end feed liquor amount size, can be arranged to liquid outlet, so that valve works well by circumferential hole smoothly to guarantee the feed liquor amount.

Two ends, the circumferential hole of spool are provided with the O-ring seal groove along the spool circular periphery, and the O-ring seals that in the groove there is hoop plays the effect of sealing, makes the liquid that circumferential orifice flow goes out in the time of opening of valves be drained into the water outlet groove and not be back to liquid feeding end; And when valve cuts out, avoid the liquid in circumferential hole to flow into the water outlet groove.The number of its seal ring is one at least, and sealability requires height that a plurality of seal grooves and its corresponding O-ring seals can be set.

The termination of feed liquor extreme direction also can be provided with o-ring groove and its corresponding O-ring seals on the spool, to guarantee the sealing of liquid feeding end.

When liquid level is elevated to the height of ball float, will pass to spool by connecting rod, rocking arm, adjusting screw, push rod by the buoyancy of its generation.Liquid level constantly rises, buoyancy function makes on the ball float and lifts, spool adjusting screw to the promotion of push rod under slippage left thereupon, water outlet groove on the valve body is intercepted gradually by the O-ring seals at the two ends, circumferential hole on the spool, fluid path constantly reduces, and the sealed circle of liquid that comes out up to circumferential hole is thoroughly shut, and can not enter liquid outlet, liquid level no longer rises, and this moment, valve was in closed condition.If liquid level descends, ball float descends, adjusting screw loses thrust to push rod, spool promotes to glide to the right at the pressure of liquid feeding end liquid stream, and the water outlet groove is opened gradually, and liquid progresses into liquid outlet from the circumferential hole of spool by the water outlet groove, valve is opened gradually, when the circumferential hole of spool faces valve body water outlet groove, the complete conducting of liquid feeding end and liquid outlet, this moment, valve was in the complete opening state.The opening and closing of valve are controlled by ball float by liquid level, and so forth, reach the effect of automatic control water inlet.

Sliding valve style float valve of the present utility model can reach the liquid road and open automatically, closes, and is simple in structure.And because the utility model changes the float valve end face seal into lateral seal, therefore can be when effectively closing liquid stream reliably, sealing is reliable, it is soft to close, Sealing is not fragile.

Description of drawings

Structural representation when Fig. 1 is the utility model valve opening

Structural representation when Fig. 2 is the utility model valve closing

Wherein the reference character of Fig. 1 and Fig. 2 is respectively: ball float 1, connecting rod 2, valve body 3, spool 4, circumferential hole 5, center hole 6, liquid feeding end 7, o-ring groove 8, O-ring seals 9, water outlet groove 10, liquid outlet 11, push rod 12, adjusting screw 13, rocking arm 14, rocker arm support 15

Embodiment

Embodiment 1: the sliding valve style float valve, constitute by ball float 1 and the connecting rod 2 that is attached thereto and the valving of connecting rod end, it is characterized in that valving comprises a valve body 3, the center of valve body 3 is columniform holes, a cylindrical spool that slidably reciprocates 4 is housed in the hole, four circumferential holes 5 are set on the spool 4, be communicated with liquid feeding end 7 after circumferentially hole 5 communicates with center hole 6, circumferential 5 two ends, hole respectively are provided with two O-ring seal grooves 8 along spool 4 circular periphery on the spool 4, hoop has O-ring seals 9 in the seal groove 8, be close to the purpose that reaches sealing with the inwall of valve body 3, thereby in the time of valve closing, the sideshake that O-ring seals 9 stifled disconnected circumferential holes 5 and water outlet groove 10 are communicated with is closed valve.There is the annular water outlet groove 10 of the circumferential hole of ratio 5 slightly larger in diameter the position directly over valve body 3 upper liquid outlets 11, and it collects the liquid that comes out in spool 4 circumferential holes 5, and it is discharged from liquid outlet 11.The affixed push rod 12 in spool 4 ends, adjusting screw 13 is fixed on the valve body 3 by rocking arm 14 and rocker arm support 15, and adjusting screw 13 can promote push rod 12 and move, and connecting rod 2 one ends are fixed on the rocking arm 14, and the other end is connected with ball float 1.

Liquid level descends, ball float 1 descends, 13 pairs of push rods 12 of adjusting screw lose thrust, spool 4 promotes to glide to the right at the pressure of liquid feeding end liquid stream, and water outlet groove 10 is opened gradually, and liquid progresses into liquid outlet 11 from spool 4 circumferential holes 5, valve is opened gradually, when the circumferential hole 5 of spool 4 faces valve body 3 water outlet grooves 10, liquid feeding end 7 and liquid outlet 11 complete conductings, this moment, valve was in the complete opening state.

Liquid level rises, buoyancy function makes on the ball float 1 and lifts, spool 4 is slippage left thereupon under the promotion of 13 pairs of push rods 12 of adjusting screw, water outlet groove 10 on the valve body 3 is intercepted gradually by the O-ring seals 9 at 5 two ends, circumferential hole on the spool 4, and valve cuts out gradually, and fluid path constantly reduces, thoroughly shut by O-ring seals 9 up to the liquid that comes out in circumferential hole 5, can not enter liquid outlet 11, liquid level no longer rises, and this moment, valve was in buttoned-up status.

Claims

1, a kind of sliding valve style float valve, valving by ball float (1) and connecting rod (2) that is attached thereto and connecting rod end constitutes, it is characterized in that valving comprises a valve body (3), the center of valve body (3) is a columniform hole, a cylindrical spool that slidably reciprocates (4) is housed in the hole, circumferential hole (5) is set on the spool (4), be communicated with liquid feeding end (7) after circumferentially hole (5) communicates with center hole (6), spool (4) is gone up two ends, circumferential hole (5) and along spool (4) circular periphery O-ring seal groove (8) is set respectively, and hoop has O-ring seals (9) in the seal groove (8); There is the annular water outlet groove (10) of a circumferential hole of ratio (5) slightly larger in diameter the position directly over valve body (3) upper liquid outlet (11), and water outlet groove (10) and liquid outlet (11) communicate; The affixed push rod in spool (4) end (12), adjusting screw (13) is fixed on the valve body (3) by rocking arm (14) and rocker arm support (15), adjusting screw (13) can promote push rod (12) and move, and connecting rod (2) one ends are fixed on the rocking arm (14), and the other end is connected with ball float (1).

2, sliding valve style float valve as claimed in claim 1 is characterized in that the size in circumferential hole (5) and number and liquid feeding end (7) feed liquor amount size are complementary.

3, sliding valve style float valve as claimed in claim 1 is characterized in that it is one along O-ring seal groove (8) and its corresponding O-ring seals (9) that spool (4) circular periphery is provided with respectively at least that spool (4) is gone up two ends, circumferential hole (5).

4, sliding valve style float valve as claimed in claim 1 is characterized in that spool (4) upward is provided with O-ring seal groove (8) and its corresponding O-ring seals (9) in the termination of liquid feeding end (7) direction.