CN2314172Y

CN2314172Y - Valve

Info

Publication number: CN2314172Y
Application number: CN 97239394
Authority: CN
Inventors: 周华明; 杨亲应; 陈春元
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-18
Filing date: 1997-12-18
Publication date: 1999-04-14
Anticipated expiration: 2007-12-18

Abstract

The utility model relates to an improved valve which is composed of a valve body, a valve core and a knob. The utility model has the main improved points that the valve core is divided into an upper valve core and a lower valve core which are made by adopting wear-resistance ceramic, wherein, the lower valve core is provided with two valve holes which are symmetrical on the warp direction are separated by a separating bar and are communicated with a water inlet pipe and a water outlet pipe; the upper valve core is provided with two valve core cavities which are corresponding to the valve holes and are separated by a separating plate. The opening and the closing of the valve can be realized by changing the plane engaging state of the corresponding separating plate and the separating bar through poking the upper valve core. The utility model has the advantages of quick opening, quick closing, labor saving, no leakage, low cost, and long service life.

Description

Valve

The utility model is a kind of improved valve.

Known commercially available valve adopts spiral spool mostly, utilization area is wide, though practical, make it reach peak rate of flow just needs spool is changeed upward several circles by rotatable handle, equally, when closing, must turn round the same number of turns, have suspicion too slow unavoidably, and its sealing main part is a rubber ring, very easily rhegma is scrapped, and its upper parts again more adopts the copper material antirust, very uneconomical.Even so also leak seriously, reason is to adopt packing seal between spool and the nut, and filler is not wear-resisting, so produce due to the gap.And the filler friction factor is big, uses effort.

The purpose of this utility model provides a kind of can changing up soon and closes and don't the long-lived valve that leak at valve rod place especially occurs leaking.

The utility model is to realize like this, this improved valve, referring to accompanying drawing, it is by valve body (4), valve rod (2), be fixed in the knob (1) of valve rod (2) top and be positioned at the spool composition of valve rod (2) below, wherein spool is positioned between the intake pipe (10) and outlet pipe (11) of valve body (4), improvements are that described spool is divided into upper valve core (5) and lower valve core (6), lower valve core wherein (6) is inserted the middle location of groove (12) of valve body (4) by its groove bar (14), lower valve core (6) has two spool bore (15) of warp-wise to lining, and the spool bore (15) of lower valve core (6) two sides respectively with intake pipe (11), outlet pipe (10) pipe is logical, described upper valve core (5) is folded mutually with lower valve core (6) concentric, upper valve core (5) is and has the spool cavity (17) that is mated by dividing plate (7) its cavity at interval and two side spool bore (15) size of lower valve core (6) in the inverted bowl-shape spool chamber, parting bead (8) between the two side spool bore (15) of this dividing plate (7) and above-mentioned lower valve core (6) has the good plane of sealing and coincide and contact, the inner chamber of valve body (4) top has the gland nut (3) that pipe with it connects, valve rod (2) is inserted in the above-mentioned gland nut (3), the edge of upper valve core (5) has the groove (16) to lining, the groove (16) of the corresponding upper valve core in the lower end of valve rod (2) (5) has two shift forks that match (13), and above-mentioned knob (1) is affixed and can upper valve core (5) be pivoted by rotating freely the groove (16) that valve rod (2) stirs upper valve core (5) through shift fork (13) with valve rod (2).Be subjected to the upper valve core (5) of shift fork (13) control of valve rod (2) only to need half-twist promptly need the clockwise or counterclockwise Fang Tongsi of rotary knob (1)/circle can realize the totally-enclosed or full open of the dividing plate (7) of upper valve core (5) to the parting bead (8) of lower valve core (6) with lower valve core (6) the concentric overlapping event relative lower valve core of upper valve core (5) (6), instantaneous closing when reaching instantaneous realization peak rate of flow or max-flow promptly changes up the pass soon.At least improve ten times of work efficiency than known technology.Owing to as have between above-mentioned dividing plate (7) and the parting bead (8) that the good plane of sealing is identical to be contacted, and two surface of contact are along with increasing of keying ground smooth more more, under the cooperation of gland nut, produce the minute surface fit effect and cooperate closelyr, auxiliary without other materials, solved leakage simultaneously, especially the valve rod place problem of leaking and wasting time and energy, and upper and lower two spools all adopt ceramic making, both there be not copper material costliness, durable wear again, thereby be again fabulous long-lived product, this structure is not only applicable to valve, and general water is chewed, tap all can adopt.

Be the accompanying drawing of a specific embodiment of the utility model below, wherein:

Fig. 1 is the structural representation of valve;

Fig. 2 is the left view of valve shown in Figure 1:

Fig. 3 is the structural representation of lower valve core;

Fig. 4 is the structural representation of upper valve core;

Fig. 5 is the rear view of upper valve core shown in Figure 4.

Among above Fig. 1-5, wherein

1-knob 2-valve rod 3-gland nut 4-valve body 5-upper valve core

6-lower valve core 7-dividing plate 8-parting bead 9-seal ring 10-outlet pipe

11-intake pipe 12-groove 13-shift fork 14-groove bar 15-spool bore

16-groove 17-spool cavity

Valve body among this embodiment (4) adopts engineering plastics to mould notes as shown in the figure and forms, knob (1) is also moulded notes with the engineering plastics one, the intake pipe (11) of valve body (4) both sides all is processed into shape of threads with general general conduit pipe joint size coupling and with tube wall with water pipe (10), concentric is followed successively by the rubber seal (9) of favorable sealing property from bottom to top in the valve pocket, have groove bar (14) lower valve core (6) that wear-resistant ceramic makes of drawing materials, lower valve core (6) has by two spool bore (15) about parting bead (8) warp-wise symmetry at interval, and have a upper valve core of making of wear-resistant ceramic (5) of groove (12), upper valve core (5) is inverted bowl-shape, in the spool chamber by the dividing plate (7) of integral production be partitioned into two respectively with the spool cavity (17) of the corresponding coupling of valve opening (15) of above-mentioned lower valve core (6).Aforementioned barriers (7) is coincide with the corresponding plane good minute surface of formation sealing in opposite directions of parting bead (8) and is contacted, and by valve rod (2) and the knob (1) of its shift fork (13) insertion groove (12) with control upper valve core (5).Wherein upper valve core (5) is located by the shift fork (13) that its groove (16) buckles into valve rod (2) lower end, between valve rod (2) and valve body (4) the valve pocket inwall gland nut (3) is installed.The valve of the present utility model of Gou Chenging is respond well through sampling thus, reaches designing requirement fully, has to change up the pass soon, and is cheap, practical, corrosion-resistant, use for a long time water-tight, long service life, the advantage of rapid operation.

Claims

1, a kind of improved valve, it is by valve body (4), valve rod (2), be fixed in the knob (1) of valve rod (2) top and be positioned at the spool composition of valve rod (2) below, wherein spool is positioned between the intake pipe (10) and outlet pipe (11) of valve body (4), it is characterized in that described spool is divided into upper valve core (5) and lower valve core (6), lower valve core wherein (6) is inserted the middle location of groove (12) of valve body (4) by its groove bar (14).Lower valve core (6) has two spool bore (15) of warp-wise to lining, and the spool bore (15) of lower valve core (6) two sides respectively with intake pipe (11), outlet pipe (10) pipe is logical, described upper valve core (5) is folded mutually with lower valve core (6) concentric, upper valve core (5) is and has the spool cavity (17) that is mated by dividing plate (7) its cavity at interval and two side spool bore (15) size of lower valve core (6) in the inverted bowl-shape spool chamber, parting bead (8) between the two side spool bore (15) of this dividing plate (7) and above-mentioned lower valve core (6) has the good plane of sealing and coincide and contact, the inner chamber of valve body (4) top has the gland nut (3) that pipe with it connects, valve rod (2) is inserted in the above-mentioned gland nut (3), the edge of upper valve core (5) has the groove (16) to lining, the groove (16) of the corresponding upper valve core in the lower end of valve rod (2) (5) has two shift forks that match (13), and above-mentioned knob (1) is affixed and can upper valve core (5) be pivoted by rotating freely the groove (16) that valve rod (2) stirs upper valve core (5) through shift fork (13) with valve rod (2).