CN2221131Y - Reverse open-close valve - Google Patents

Abstract

The utility model relates to a reverse open-close valve. A valve core is installed in a valve body; a rubber sealing cone, a pressure spring, an upper sealing and a pressing handle or a pedaling cover are installed on the valve core; a sealed shock absorbing ring corresponding to the rubber sealing cone is installed on the valve body; the big head end of the rubber sealing cone faces to the entry end of the valve body; the outer edge of the upper sealing and the inner edge of the upper sealing are respectively fixed on a valve cover of the valve body and the valve core. The utility model has the advantages of reasonable design, novel structure, long service life, good sealing effect, prevention of cross infection of viruses in public places, sanitation performance and good performance.

Description

Reverse keying valve

The utility model relates to valve and the tap in the mechanical engineering, and particularly a kind of is the valve of medium with liquid gaseous state.

Existing valve or tap mostly are the manual rotary valve core, driving the rubber seal packing ring moves up and down, realize to open and close, the keying of this valve generally all is open-minded along liquid or gas flow, thereby will overcome hydrodynamic pressure when closing, it is poor to reset, rubber seal contacts with valve body is rigid, and is fragile, seals bad, general remnants is at " run, drip, leak " this a great problem, and working life is short.Particularly these valve applications in public places, switch need be used handling, easily produces viral cross infection, and is extremely unhygienic.

The purpose of the utility model is intended to develop a kind ofly to be utilized that hydrodynamic pressure is closed automatically, reverse unlatching, vibrationproof, good sealing effect, long service life, can be applicable to various places, prevents the reverse keying valve of viral cross infection, favourable health.

Technical solution of the present utility model is: this reverse keying valve includes valve body, valve gap, spool, pressure handle, spool is equipped with in the valve body, the valve body entrance point that leans on of spool is fixed with the rubber seal awl, the fluid inlet end of stub end in valve body of rubber seal awl, on valve body, be mounted with and the absorbing ring that seals the corresponding driving fit of the awl conical surface, the spool stage casing is set with stage clip, hold and valve body for pressured of spool, sealing is installed between the valve gap, the outer of last sealing is pressed abd fixed on the valve body by valve gap, the interior of last sealing is fixed on the spool along banding, and the valve outlet end leads directly to the spool stage casing.

The technical solution of the utility model is described in further detail and provides embodiment below in conjunction with accompanying drawing.

Fig. 1 is the utility model structure sectional view.

Fig. 2 is embodiment's 1 structure sectional view.

Fig. 3 is embodiment's 2 structure sectional views.

Fig. 4 is embodiment's 3 structure sectional views.

Fig. 5 is embodiment's 4 structure sectional views.

As shown in Figure 1, this reverse keying valve includes valve body 1, valve gap 2, spool 3, pressure handle 4, spool 3 is installed in the valve body 1, the upper end of valve body 1 and left chamber are the entrance point of fluid, one end of spool 3 promptly is fixed with rubber seal awl 5 by that end of valve body import, the fluid inlet end of stub end in valve body of rubber seal awl 5, in valve body 1, be mounted with and the absorbing ring 6 that seals the corresponding driving fit of awl 5 conical surfaces, spool 3 stage casings are set with stage clip 7, spool 3 pressured 4 those ends and valve body 1, sealing 8 is installed between the valve gap 2, the outer of last sealing 8 is pressed abd fixed in the step hole of valve body 1 by valve gap 2, last sealing 8 interior is fixed on along banding in the circular groove of spool 3, and valve body 1 outlet end leads directly to spool 3 stage casings.

Reverse keying valve shown in Figure 1 can be used as the hand flushing valve, its pressure handle 4 one ends are connected with spool 3 terminations by pressure handle inserts 9, be fixed with a spacing pressure cap 10 on the valve small cup 2, spacing pressure cap 10 1 sides have the hole, being convenient to pressure handle 4 one ends stretches into pressure handle inserts 9 and is connected, this hole of spacing pressure cap 10 also is a fulcrum of pressure handle 4, this reverse keying valve shown in Figure 1 is during as the hand flushing valve, the outlet end of its valve body 1 is equipped with nozzle 11, thereby outside valve body 1 outlet end suit one swivel nut 12, swivel nut 12 sides have inlet hole 13, are communicated with ambient air, when this hand flushing valve is closed, nozzle 11 is interior as negative pressure occurring, then ambient air is entered inside and outside the nozzle 11 by inlet hole 13, pressure and barometric pressure balance, the pollution of having avoided foul to reflux and cause.

Figure 2 shows that embodiment 1 structure sectional view, has valve body 1 among the figure equally, valve gap 2, spool 3, pressure handle 4 is handwheel 14 in the present embodiment, spool 3 is installed in the valve body 1, the left end of valve body 1 and cavity of resorption are the entrance point of fluid, the lower end of spool 3 promptly is fixed with rubber seal awl 5 by that end of import cavity of resorption of valve body 1, the stub end of rubber seal awl 5 is towards valve body 1 cavity of resorption, be mounted with in the valve body 1 and the absorbing ring 6 that seals the corresponding driving fit of awl 5 conical surfaces, spool 3 stage casings are set with stage clip 7, the upper end of spool 3 and valve body 1, sealing 8 is installed between the valve gap 2, the outer of last sealing 8 is pressed abd fixed in the step hole of valve body 1 by valve gap 2, last sealing 8 interior is fixed on along banding in the circular groove of spool 3, and valve body 1 outlet end leads directly to spool 3 stage casings, and present embodiment valve body 1 its entrance point and outlet end are point-blank, thereby can be used for the hand stop valve of pipeline break-make, handwheel 14 is fixed on spool 3 upper ends by taper pin 15.

Figure 3 shows that embodiment 2 structure sectional view, being mainly used in 90 ° of pin compresses and washes and gargles valve, the feed-water end and the waterexit end of valve body 1 are orthogonal, the lower end is a feed-water end among the figure, left end is the waterexit end, spool 3 vertically is installed in the valve body 1, spool 1 upper end is mounted with one and steps on and cover 16, spool 3 lower ends promptly are mounted with rubber seal awl 5 by feed-water end, the stub end of rubber seal awl 5 is towards the entrance point of valve body 1, be mounted with absorbing ring 6 in the valve body 1, absorbing ring 6 is bored 5 the corresponding driving fit of the conical surface with sealing when valve is closed, and spool 3 stage casings also are set with stage clip 7, the upper end of spool 3 and valve body 1, sealing 8 is installed between the valve gap 2, the outer of last sealing 8 is pressed abd fixed in valve body 1 step hole by valve gap 2, on seal in 8 the interior circular groove that is fixed on spool 3 along banding, valve body 1 outlet end leads directly to spool 3 stage casings.

Figure 4 shows that embodiment 3 structure sectional view, this is that a kind of 45 ° of pin compress and wash and gargle valve, the feed-water end of valve body 1 and waterexit end angle at 45, promptly tiltedly the below is the valve inleting water end, the left side is the valve body waterexit end, spool 3 vertically is installed in the valve body 1, spool 3 upper ends are mounted with to step on covers 16, spool 3 lower ends promptly install and fix rubber seal awl 5 by feed-water end, the stub end of rubber seal awl 5 is towards the entrance point of valve body, be mounted with absorbing ring 6 in the valve body 1, absorbing ring 6 is when valve is closed, with sealing awl 5 the corresponding driving fit of the conical surface, spool 3 stage casing suit stage clips 7, the upper end of spool 3 and valve body 1, sealing 8 is installed between the valve gap 2, the outer of last sealing 8 is rubber rectangular rings, tightly be pressed in by valve small cup 2 in the step hole of valve body 1, the interior edge of last sealing 8 is O RunddichtringOs, closely cooperate together with the circular groove of spool 3, the rectangular seal of last sealing 8 and O-ring seals are linked to be an integral body by the rubber membrane of 2 millimeters thick, and rubber membrane is pressed in spool 3 and does to open and close when moving up and down, and flowing medium can't be leaked outside, spool 3 does not have extravasation of fluid with valve gap 2 holes and valve small cup 2 with valve body 1 junction plane, and valve body 1 outlet end leads directly to spool 3 stage casings.

Fig. 5 is embodiment 4 a structure sectional view; this is a kind of axial compression flushing valve; the feed-water end and the waterexit end of valve body are orthogonal; valve body 1 lower end is a water intake; valve body 1 left end is the waterexit end; spool 3 vertically is installed in the valve body 1; spool 3 upper ends are mounted with steps on small cup 16; spool 3 lower ends promptly install and fix rubber seal awl 5 by feed-water end; the stub end of rubber seal awl 5 is towards the entrance point of valve body 1; be mounted with absorbing ring 6 in the valve body 1; absorbing ring 6 is when valve is closed; the corresponding driving fit of the conical surface with sealing awl 5; spool 3 stage casing suit stage clips 7; the upper end of spool 3 and valve body 1; sealing 8 is installed between the valve gap 2; the outer of last sealing 8 is rubber rectangular rings; tightly be pressed in by valve small cup 2 in the step hole of valve body 1; the interior edge of last sealing 8 is O-ring seals; closely cooperate together with the circular groove of spool 3; the rectangular seal of last sealing 8 and O-ring seals are linked to be an integral body by the rubber membrane of 2 millimeters thick; when rubber membrane is done to open and close motion up and down at spool 3; flowing medium can't be leaked outside, and spool 3 does not have extravasation of fluid with valve gap 2 holes and valve gap 2 with valve body 1 junction plane, and valve body 1 outlet end leads directly to spool 3 middle parts; when this axial compression flushing valve is used; because pin is trampled lid,, around valve body 1, have mounting box 17 and cover plate 18 in order to protect valve body; valve seat 19.

Swivel nut of the present utility model (12), valve gap (2), valve body (1) are steel-plastic structure.

During these reverse keying openings of valves, by artificial manually or pin step on to spool and apply axial pressure, spool is made the direction opposite with direction of flow and is moved, this moment, valve was logical, liquid or gas flow out, then need not the people when closing for applying any external force, pressure by fluid self, reposition force after the stage clip compressive strain and go up the sealing resiliently deformable after the reposition force three work simultaneously and the purpose that realizes closing automatically, very little even when being 0 when liquefied gas pressure, by the precompression of stage clip and the reposition force acting in conjunction after the last caulking gum resiliently deformable in spool, the same realization well closed automatically, in addition, the absorbing ring is installed in the valve body, making the sealing awl is non-rigid the contact with valve body, vibration and noise have been avoided, again because the sealing awl all has the corresponding conical surface with the absorbing ring, sealing property is good, the utility model is the usage requirement of satisfying the different situations different places, carried out serial new design, as be used for the public lavatory, adopt the foot-operated structure of pack, be used for the public place of washing one's face and rinsing one's mouth, adopt 90 ° or 45 ° of foot valves, be used for old lavatory and transform and newly-built lodging building, can adopt the hand flushing valve, be used for pilot line, adopt the hand stop valve, family's toilet room adopts the self-locking hand press valve, may cause backflow pollution for avoiding the hand flushing valve to be connected with the toilet stool device, swivel nut and inlet hole are installed around the nozzle of waterexit end, are realized inside and outside air pressure balance, prevent the dirt backflow pollution, for eliminating various damage factors, on valve design, carried out structure and newly designed, all part adopts corrosion-resistant raw material and new production process, as adopt engineering plastics, steel-plastic structure, the intensity height, corrosion-resistant, anti-oxidant, low temperature resistant not embrittlement.

The utility model is reasonable in design, novel structure, and long service life, good sealing effect, applied range prevents viral cross infection, favourable health, function admirable.

Claims (7)

1, a kind of reverse keying valve, it is characterized in that having valve body (1), valve gap (2), spool (3), pressure handle (4), spool (3) is equipped with in the valve body (1), the valve body entrance point that leans on of spool (3) is fixed with rubber seal awl (5), the fluid inlet end of stub end in valve body (1) of rubber seal awl, on valve body (1), be mounted with and the absorbing ring (6) that seals the corresponding driving fit of awl (5) conical surface, spool (3) stage casing is set with stage clip, pressured handle (4) end and the valve body (1) of spool (3), sealing (8) is installed between the valve gap (2), the outer of last sealing (8) is pressed abd fixed on the valve body (1) by valve gap (2), last sealing the interior of (8) is fixed on the spool (3) along banding, and valve body (1) outlet end leads directly to spool (3) stage casing.

2, reverse keying valve according to claim 1, it is characterized in that pressure handle (4) one ends are connected with spool (3) termination by pressure handle inserts (9), be fixed with a spacing pressure cap (10) on the valve gap (2), spacing pressure cap (10) one sides have the hole, become a fulcrum of pressure handle (4).

3, reverse keying valve according to claim 1 is characterized in that the outlet end of valve body (1) is equipped with nozzle (11), suit one swivel nut (12) outside valve body (1) outlet end, and swivel nut (12) side has inlet hole (13), is communicated with ambient air.

4, reverse keying valve according to claim 1 is characterized in that pressure handle (4) is handwheel (14) or steps on lid (16).

5, reverse keying valve according to claim 1, the outer that it is characterized in that sealing (8) is a rubber rectangular ring, tightly be pressed in the step hole of valve body (1) by valve gap (2), the interior edge of last sealing (8) is an O-ring seals, closely cooperate together with the circular groove of spool (3), the rectangular seal of last sealing (8) and O-ring seals are linked to be an integral body by the rubber membrane of 2 millimeters thick.

6, reverse keying valve according to claim 1 is characterized in that its entrance point of valve body (1) and outlet end angle orthogonal or at 45 point-blank.

7, reverse keying valve according to claim 1 is characterized in that swivel nut (12), valve gap (2), valve body (1) are steel-plastic structure.

Images