Tap
Technical field
The utility model belongs to the engineering element technical field, relates to a kind of control gear of flowing medium, particularly a kind of tap.
Background technique
The production of pressurized beverage (for example beer) is to make beverage contain a certain amount of dissolved gas, normally carbon dioxide (CO
2).Although in brewing and fermentation process, can produce a certain amount of dissolving CO by nature
2, most of commercial winerys can dissolve extra CO in its product
2For commercial winery, add extra CO
2Have two main purposes: the first, from the viewpoint of quality control, all beer that can regulate is produced make it to comprise the CO of same amount
2The second, extra CO
2Offer the more bubbling quality of beer, allow the Consumer feel better comfortable feel and local flavor.
Although a lot of beer of primary commercial winery production trend towards packing with bottle and jar, a large amount of beer are also packed with the container that is called keg (keg) big, sealing.Keg is can use once again and the aluminium vessel of can once again, and it is easy to use, hygiene.Be contained in the beer in the keg, be called barrelled beer, supply bar, public house, nightclub, sports ground, red-letter day and big party usually.Barrelled beer has developed nearly 30 years abroad, and barrelled beer accounts for the ratio of beer gross production, is 30% in Germany, is 80% in Britain, also occupies suitable ratio in West Europe other countries.
When consumption, need special device for barrelled beer being assigned to open hood type container.Beer dispense tap (being called beer tap usually) is one of important components, and it comprises valve and nozzle, is used for controlling and guiding beer, makes it to flow into open hood type container.For example, Chinese patent literature just once disclosed a kind of beverage dispensing apparatus and beverage dispensing system [China Patent No.: ZL03826133.2; Notice of authorization number: CN100509608C], it is fast that the present invention has improved a kind of flow velocity, can not produce the beverage dispensing apparatus of excess foam.Again for example, Chinese patent literature just once disclosed a kind of sanitary faucet with improved flow restriction feature and foam control feature [Chinese patent application number: 200380102925.7; Publication number: CN1781000A], one has the valve body of a valve opening, and this valve opening has the entrance and exit port of axially aligning; One plunger assembly, it is arranged in the valve opening basically; One mobile limiter assembly, it comprises: a bar, it has second rod end that first rod end and that is removably attached to the ingress port of valve body is removably attached to the distributing fluids source; One mobile limiter parts, it is arranged in the bar, and flow limiter has a head that is communicated with plunger assembly; And an adjustment screw, the motion of the flow limiter assembly in its adjustable lever.Though clean hygiene is provided and has not dismantled the cock that valve just can clean effectively in conjunction with Figure of description the present invention, also deposited some defectives.1, when need with this valve when connected state switches to closed condition, must realize switching by pulling handle, and after hand is just removed during in opening state, can not realize the problem that automaticallyes switch, so exist inconvenient operation, the problem of hommization inadequately.2, when the unexpected touching of people handle causes this opening of valves or be not closed completely when close, this valve can't be eliminated above-mentioned situation automatically, so the situation that often causes a large amount of beverages to run off in vain takes place, causes the waste of resource.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of tap that hand can automatically switch to closed condition that unclamps when this leading mangetic core assembly is in disengaging sealing surface state.
The purpose of this utility model can realize by following technical proposal: a kind of tap, comprise valve body with liquid passage, and have sealing surface on the inwall of liquid passage excessively, it is characterized in that, be provided with valve rod and the mangetic core assembly that is connected on the valve rod in the described valve body; Hinged driving lever on the described valve body, an end of driving lever penetrates valve body and valve rod is hinged, and the other end is fixed with handle; Be provided with between described valve rod and the valve body mangetic core assembly is had all the time to the spring one that is resisted against sealing surface direction movement tendency.
Open this leading process for by pulling handle, drive moving axially of driving lever swing, valve rod and mangetic core assembly successively and make mangetic core assembly break away from sealing surface, cross the liquid passage and be in connected state, spring one is compressed.Unclamp handle when finishing branch dixie cup defensive position, under the elastic force effect of spring one, make valve rod overcome the frictional force between valve rod and valve body and valve rod and the driving lever and move axially, and then mangetic core assembly is resisted against on the sealing surface automatically, realize closing automatically.Obviously, when the unexpected touching of people handle causes tap to open, also can make mangetic core assembly under the effect of spring one automatically against returning on the sealing surface.
In above-mentioned tap, described mangetic core assembly is connected the place, an end of valve rod, and the other end of described valve rod is connected with regulator bolts one; Above-mentioned spring one is set on the valve rod, and an end of spring one is resisted against on the regulator bolts one, and the other end is resisted against on the valve body.Regulator bolts one is set promptly in order to make things convenient for mounting spring one and to adjust the elastic force of spring one, again for convenience spring one against.
In above-mentioned tap, one end of described valve rod has annular recessed shoulder, described mangetic core assembly comprises the valve seat that is set in the recessed shoulder of valve rod annular place, be arranged with seal ring on the described valve seat, be provided with between described valve seat and the valve rod seal ring is had all the time to the spring two that is resisted against annular recessed shoulder bottom surface direction motion trend; The elastic force of described spring two is greater than the elastic force of spring one.
In above-mentioned tap, place, the top of the recessed shoulder of described annular is connected with regulator bolts two, and an end of above-mentioned spring two is resisted against on the regulator bolts two, and the other end is resisted against on the valve seat.The effect of regulator bolts two and regulator bolts one is basic identical, promptly in order to make things convenient for mounting spring two and to adjust the elastic force of spring two, again for convenience spring two against.
In above-mentioned tap, the annular recessed shoulder of described valve rod is the row's of having foam passage one axially, and the outlet of described row's foam passage one is positioned at the place, bottom of annular recessed shoulder; Have the row's foam passage two that was communicated with liquid channel entrance end and row's foam passage one on the described regulator bolts two.
In above-mentioned tap, the middle part of described valve rod is provided with the annular liquid bath of stepping down.Cross the liquid passage and be kink, sealing surface is positioned at the kink place, and mangetic core assembly is positioned at a side of sealing surface, and valve rod is located substantially on the opposite side of sealing surface.Valve rod passed the kink of liquid passage, and promptly the middle part of valve rod was positioned at the kink place of liquid passage; This will inevitably reduce the section area of liquid passage, thus do not influencing valve rod normal use and the situation in life-span under, the annular liquid bath of stepping down is set can guarantees the flow of liquid passage.
In above-mentioned tap, the liquid channel outlet place of crossing of described valve body is connected with the fluid mouth.
In above-mentioned tap, have the gas-entered passageway that was communicated with the liquid channel outlet and the external world on the described valve body, and above-mentioned gas-entered passageway is cut off when mangetic core assembly is in disengaging sealing surface state.
In above-mentioned tap, have on the described valve rod for the hinged hinging hole of driving lever, has the valve rod hole that passes for valve rod on the described valve body, above-mentioned gas-entered passageway comprises the hinging hole place that is communicated with valve rod hole and extraneous gas-entered passageway one and is communicated with the hinging hole place and the gas-entered passageway two of crossing the liquid channel outlet of valve rod hole, and valve rod ends gas-entered passageway one when mangetic core assembly is in disengaging sealing surface state.
Compared with prior art, this tap has the following advantages:
1, state still is in opening state no matter tap is in row's foam, all can switch to closed condition as long as unclamp hand under the effect of spring one or spring two, and it is more convenient, more humane that this tap is used; Simultaneously also stopped to be not closed completely close and problem that cause beverage to run off in vain.
2, the fluid mouth has made things convenient for this tap to link to each other with workpiece (as bottle, wineglass).The liquid passage of crossing that gas-entered passageway is avoided again is cut off the problem that the medium in the fluid mouth of back can't be got rid of, and obviously this tap has easy to use, reasonable in design and can guarantee hygienic advantages.
Description of drawings
Fig. 1 is this leading perspective view.
Fig. 2 is the sectional structure schematic representation of this tap when being in closed condition.
Fig. 3 is the sectional structure schematic representation of this tap when being in opening state.
Fig. 4 is that this tap is in the sectional structure schematic representation when arranging the foam state.
Among the figure, 1, handle; 2, driving lever; 21, articulated section; 22, joint; 3, valve body; 31, cross the liquid passage; 32, annular convex shoulder; 33, sealing surface; 34, gas-entered passageway; 341, gas-entered passageway one; 342, gas-entered passageway two; 35, the annular recessed shoulder of stepping down; 4, valve rod; 41, hinging hole; 42, the annular liquid bath of stepping down; 43, annular recessed shoulder; 44, row's foam passage one; 5, mangetic core assembly; 51, seal ring; 52, valve seat; 53, spring two; 6, fluid mouth; 7, regulator bolts one; 8, regulator bolts two; 81, row's foam passage two; 9, spring one; 10, O type circle; 11, positioning cap; 12, pressure cap.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this tap comprises valve body 3, valve rod 4, mangetic core assembly 5, driving lever 2, handle 1, spring 1.
Specifically, as depicted in figs. 1 and 2, have one in the valve body 3 and cross liquid passage 31 and a valve rod hole that supplies valve rod 4 to pass.Cross have on the inwall of liquid passage 31 have on annular convex shoulder 32 and the annular convex shoulder 32 for mangetic core assembly 5 against and can form the sealing surface 33 of circumferential seal.
Valve rod 4 and mangetic core assembly 5 all are arranged in the valve body 3, and mangetic core assembly 5 is positioned at annular convex shoulder 32 near a side of crossing liquid passage 31 entrance points, and valve rod 4 major parts are positioned at the opposite side of annular convex shoulder 32.One end of valve rod 4 links to each other with mangetic core assembly 5, and the other end is located in the above-mentioned valve rod hole; Valve rod 4 can move axially along the inwall of valve rod hole and the sidewall of valve rod 4 and the inwall formation sealing of valve rod hole.
Have on the valve rod 4 for the hinged hinging hole 41 of driving lever 2.The middle part of driving lever 2 has articulated section 21, one ends that are spherical and has the joint 22 that is spherical, and the other end has screw thread and links to each other with handle 1.So this driving lever 2 is hinged in valve body 3 by articulated section 21, the end with joint 22 penetrates valve body 3 and above-mentioned joint 22 is embedded in hinging hole 41, and valve rod 4 is hinged with driving lever 2 thus.And when pulling handle 1, drive driving lever 2 swing successively, valve rod 4 moves axially and mangetic core assembly 5 moves, and then makes mangetic core assembly 5 be resisted against on the sealing surface 33 or breaks away from sealing surface 33, realizes the switching of this tap.
Have the annular recessed shoulder 35 of stepping down in the outer end of valve rod hole, the other end end of valve rod 4 is connected with a regulator bolts 1, spring 1 is set on the valve rod 4 for stage clip and its, and an end is resisted against annular and steps down on the bottom surface of recessed shoulder 35, and the other end is resisted against on the regulator bolts 1.Mangetic core assembly 5 is had all the time to being resisted against sealing surface 33 directions motion trend.It is to be spring 1 to install the space is provided that the annular recessed shoulder 35 of stepping down is set, again for convenience spring 1 against.Regulator bolts 1 is set promptly in order to make things convenient for mounting spring 1 and to adjust the elastic force of spring 1, again for convenience spring 1 against.As shown in Figures 2 and 3, mangetic core assembly 5 in this tap is in and breaks away from the Sealing state and unclamp handle 1, under the elastic force effect of spring 1, make valve rod 4 overcome the frictional force between valve rod 4 and valve body 3 and valve rod 4 and the driving lever 2 and move axially, and then mangetic core assembly 5 is resisted against on the sealing surface 33 automatically, realize closing automatically.
Mangetic core assembly 5 comprises valve seat 52, seal ring 51 and spring 2 53.More particularly, an end of valve rod 4 has annular recessed shoulder 43 and is connected with regulator bolts 28 in this end; Valve seat 52 is set in annular recessed shoulder 43 places of valve rod 4 and can moves axially along the sidewall of the recessed shoulder 43 of annular.Seal ring 51 is set on the valve seat 52, and when spool drive mangetic core assembly 5 moved, sealing circle 51 was resisted against on the sealing surface 33 or breaks away from sealing surface 33.Spring 2 53 also is annular recessed shoulder 43 places of stage clip and its also sheathed valve rod 4; One end of spring 2 53 is resisted against on the valve seat 52, and the other end is resisted against on the regulator bolts 28; Obviously, the elastic force effect lower seal 51 at spring 2 53 has all the time to the trend that is resisted against annular recessed shoulder 43 bottom surface direction motions; Simultaneously, by turning the decrement of regulator bolts 28 adjustable springs 2 53.As shown in Figure 2, in this tap, when being resisted against on the sealing surface 33, seal ring 51 also need seal ring 51 to be resisted against on the bottom surface of annular recessed shoulder 43; So the elastic force of spring 2 53 needs the elastic force greater than spring 1; This moment, this tap was in closed condition.Thus, as shown in Figure 3, seal ring 51 is resisted against on the bottom surface of annular recessed shoulder 43 certainly when mangetic core assembly 5 breaks away from sealing surface 33, this moment, this tap was in opening state, cross taking of liquid passage 31 in order to reduce 4 pairs of valve rods, dependable flow is so be provided with the annular liquid bath 42 of stepping down at the middle part of valve rod 4.
Extremely shown in Figure 4 as Fig. 2, when this tap is applied in the bulking system that beer, cola etc. easily produce foam, need be at front-seat ducted foam and the gas of removing of can, so at the axial row's of the having foam passage 1 of 43 of the annular recessed shoulders of valve rod 4, the outlet of row's foam passage 1 is positioned at the place, bottom of annular recessed shoulder 43; The import of row's foam passage 1 is positioned on the end face that valve rod 4 has annular recessed shoulder 43 1 ends.Because regulator bolts 28 is connected place, above-mentioned end, for the row of making foam passage 1 can with cross liquid passage 31 entrance points and be connected, so on regulator bolts 28, have the row's foam passage 2 81 that was communicated with liquid passage 31 entrance points and arranged foam passage 1.
As shown in Figure 4, when with handle 1 when the posterior direction of valve body 3 is pulled, valve rod 4 moves to the anterior direction of valve body 3, this moment, Sealing still was resisted against on the sealing surface 33, but disengagement of seal member the bottom surface of the annular recessed shoulder 43 on the valve rod 4, spring 2 53 further is compressed, and makes liquid passage 31 entrance points be connected by row's foam passage 1 and row's foam passage 2 81 with outlet end, and foam and gas change drain into outside the pipeline.Utilize this structure eliminating foam and gas to have the advantage that flow is little, be easy to control.When the manipulator unclamps hand, under the elastic force effect of spring 2 53, valve rod 4 moves to the posterior direction of valve body 3, and the bottom surface and the Sealing of the annular recessed shoulder 43 on valve rod 4 lean.
This tap links to each other with workpiece (as bottle, wineglass) for convenience, so be connected with fluid mouth 6 at the liquid passage 31 outlet end places of crossing of valve body 3.But can't get rid of for fear of the media that mistake liquid passage 31 is cut off in the back fluid mouth 6, be communicated with liquid passage 31 outlet end and extraneous gas-entered passageway 34 so have on valve body 3, this gas-entered passageway 34 is communicated with hinging hole 41 places of valve rod hole and extraneous gas-entered passageway 1 and hinging hole 41 places that are communicated with valve rod hole and the gas-entered passageway 2 342 of crossing liquid passage 31 outlet end.As shown in Figure 3, valve rod 4 also needs the joint between driving lever 2 and the valve body 3 to be in sealing state by gas-entered passageway 1 simultaneously when mangetic core assembly 5 is in disengaging sealing surface 33 states, is provided with O type circle 10 thus between pressure cap 12 and positioning cap 11.As shown in Figure 2, when the seal ring in the mangetic core assembly 5 51 is resisted against on the sealing surface 33, gas-entered passageway 1 and gas-entered passageway 2 342 are connected by hinging hole 41, and gas entered into liquid passage 31 outlet end from gas-entered passageway 34 equates the air pressure at fluid mouth 6 two ends, makes things convenient for medium to discharge.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used handle 1 morely; Driving lever 2; Articulated section 21; Joint 22; Valve body 3; Cross liquid passage 31; Annular convex shoulder 32; Sealing surface 33; Gas-entered passageway 34; Gas-entered passageway 1; Gas-entered passageway 2 342; The annular recessed shoulder 35 of stepping down; Valve rod 4; Hinging hole 41; The annular liquid bath 42 of stepping down; The recessed shoulder 43 of annular; Row's foam passage 1; Mangetic core assembly 5; Seal ring 51; Valve seat 52; Spring 2 53; Fluid mouth 6; Regulator bolts 1; Regulator bolts 28; Row's foam passage 2 81; Spring 1; O type circle 10; Positioning cap 11; Pressure cap 12 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.