CN108799547A - A kind of Auto-drainage connector - Google Patents

Abstract

The present invention provides a kind of Auto-drainage connectors, belong to field of mechanical technique.It, which solves the problems, such as that existing Auto-drainage connector does not have, prevents tap freezing function.It includes that upper end is water inlet end, lower end is the ontology of water outlet, the catch that gasket and cross section in a ring is less than gasket is equipped in water inlet end, catch is resisted against on gasket and by orifice closing on the centre bore of gasket, outer body is equipped with the air admission hole communicated with water outlet, when water inlet, gasket can deform downwards and close air admission hole, cutting ferrule is slidably connected in water outlet, flexible support element is connected on cutting ferrule, there is gap between the upper end of support element and the lower face of gasket, moving up rear support upper end in cutting ferrule can withstand on gasket.It has the advantages that prevent tap from freezing again while the anti-antipriming pipe of energy freezes.

Description

A kind of Auto-drainage connector

Technical field

The invention belongs to field of mechanical technique, are related to a kind of connector more particularly to a kind of Auto-drainage connector.

Background technology

With the continuous development of society, requirement of the people for itself living environment is also higher and higher, more and more lives The all included garden of residence (especially some developed countries), to facilitate people that can plant flowers and plants or vegetables in garden.Plantation flower Grass or vegetables just can't do without needing to be arranged in garden tap and connecting water pipe to be used, can facilitate in this way people into The watering of row large area.When tap is closed, more water is often remained in water pipe, such case is in the temperature lower winter Season or some throughout the year all in the area of cold snap, it is easy to water pipe occur can not use because residual water freezes, seriously Shi Keneng there is also the phenomenon that water pipe from freezing crack.

To solve the above-mentioned problems, the applicant is it is proposed that cross automatic drain valve [application number：201620500946.9], it Including tubular valve body, valve body upper end is water inlet end, and the lower end of valve body is water outlet, is equipped in several and valve body on the outside of valve body The air admission hole that chamber is connected offers annular seal groove in valve body, and air admission hole is opened up by the lateral wall of valve body to annular seal groove Downside cell wall on, Gask-O-Seal is equipped in annular seal groove, the inner edge of Gask-O-Seal is stretched out outside annular seal groove, valve body Water outlet in be equipped with and be oriented to core and spring, the upper end for being oriented to core acts against under the elastic force effect of spring under Gask-O-Seal It holds and Gask-O-Seal is made to be located at the upside of annular seal groove, Gask-O-Seal heads under the action of hydraulic pressure when valve inleting water Core is oriented to overcome the elastic force of spring to act on the downside movement to annular seal groove and close air admission hole.When use by valve body into Water end (W.E.) is connected on the water outlet of tap, and the water outlet of valve body is connected with water pipe, and when tap is opened, hydraulic pressure acts on On Gask-O-Seal, Gask-O-Seal heads on guiding core and overcomes the elastic force of spring to act on the downside movement to annular seal groove and incite somebody to action Air admission hole is closed, at this time valve body normally water outlet and air admission hole not air inlet.When the faucet is turned off, hydraulic pressure effect, annular are lost Gasket resets and air admission hole is made to open under the action of the spring, and the air outside valve body is entered by air admission hole in valve body, And it is entered in water pipe by the water outlet of valve body so that remain in the water in water pipe and is discharged automatically under gas pressure, from And make that the phenomenon that freezing will not be generated because of ponding in water pipe.

However, be also to have existing for residual water in addition to water pipe, in tap, it can although with above-mentioned automatic drain valve Water in water pipe is automatically drained out, but just will not be removed again after being connected on tap due to automatic drain valve, water is caused Remaining ponding can not be discharged by automatic drain valve in tap, therefore the problem of be frozen in there is tap.In order to prevent Tap is frozen in, and the conventional means of those skilled in the art are that this body structure is improved to tap, make it when closed Have an antifreeze function, for example, application No. is disclosed in 201721002087.1 from return water anti-freezing water tap, application No. is 201721044271.2 a kind of disclosed antifreezing faucet, application No. is one kind disclosed in 201721099098.6 with anti- Freeze the tap of effect and application No. is a kind of frost-cracking-preventing faucet devices etc. disclosed in 201621394131.3.

Invention content

The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of Auto-drainage connector is wanted The technical issues of solution is that how to have the function of preventing tap from freezing while having anti-antipriming pipe freezing function.

Object of the invention can be realized by the following technical scheme：

A kind of Auto-drainage connector, including upper end is water inlet end, lower end is water outlet ontology, it is in ring to be equipped in water inlet end The gasket of shape and cross section are less than the catch of gasket, and catch is resisted against on gasket and by hole on the centre bore of gasket Mouthful closing, outer body are equipped with the air admission hole that is communicated with water outlet, and when water inlet, gasket can deform downwards and by air admission hole Closing, which is characterized in that slidably connect cutting ferrule in the water outlet, flexible support element is connected on cutting ferrule, prop up There is gap, gasket can be withstood on by moving up rear support upper end in cutting ferrule between the upper end of support member and the lower face of gasket On.

In use, the water inlet end of ontology is connected on the water outlet of tap, water pipe is connected on the water outlet of ontology, Water pipe pushes up cutting ferrule upwards, and due to being connected with flexible support element on cutting ferrule, support element will be upward together with cutting ferrule Support element upper end is moved to withstand on gasket lower face.When tap is opened, flow enters in the water inlet end of ontology, influent pressure It is powerful to add support element to withstand on the elastic force on gasket in gasket own resilient, so that gasket and support element are downward simultaneously It deforms, the centre bore upper port on gasket is separated with catch and opens gasket simultaneously and close air admission hole, such flow It will and can only be flowed into the water outlet of ontology and be flowed out from water pipe.

After tap is closed, ponding is remained in tap and water pipe, gasket and support element rely on own resilient It resets upwards simultaneously, the upper end of support element is withstood on the lower face of gasket again, has remaining ponding to enter this in tap In the water inlet end of body, but the power that only ponding acts on gasket is to be less than gasket own resilient support element is added to withstand on Elastic force on gasket, therefore ponding is isolated in water inlet end, and since the reason that air admission hole is opened makes extraneous sky Be so incensed that with along water outlet into oral siphon, to which the water remained in water pipe be discharged under the influence of air pressure, to prevent water Ponding inside Guan Yin and freeze.After residual water in water pipe drains, water pipe is removed from the water outlet of ontology, cutting ferrule loses at this time It has gone the constraint of water pipe and has moved down, thus support element is with moving down, such support element upper end and gasket lower face Between just there is gap, that is to say, that the elastic force of gasket part no longer supported acts on, and is separated the tap in water inlet end Internal ponding acts on the own resilient that the power on gasket is more than gasket, and the centre bore upper port of such gasket is beaten again It opens, so that ponding discharges inside tap, to prevent water tap from freezing because of internal ponding.

This Auto-drainage connector can not only be arranged the residual water in water pipe automatically by the cooperation of cutting ferrule and support element Go out, freeze to prevent antipriming pipe, while can also also be automatically drained out the residual water in tap after water pipe removes, to prevent water Tap freezes, and further improves the practicability of this Auto-drainage connector, enriches function.

In above-mentioned Auto-drainage connector, the cutting ferrule includes the cylinder of both ends open, is leaned in the water outlet There is annular shoulder, cylinder to be located at proximal port on the inside of annular shoulder, and there is annular shoulder block one on the outside of cylinder upper end, it is described One lower face of annular shoulder block lean with annular shoulder upper surface.

Cutting ferrule includes the cylinder of both ends open, and cylinder is located on the inside of annular shoulder to be slided so that being formed between cutting ferrule and water outlet Dynamic connection, it is possible thereby to allow cutting ferrule to move up when connecting water pipe, and makes support element upper end be resisted against on gasket lower face, Ensure that air admission hole is in the open state so that outside air can be automatically drained out through water outlet into oral siphon and by remaining water, To achieve the purpose that anti-antipriming pipe freezes；Meanwhile it being moved down come sealing element far from sealing by cylinder in not connected water pipe Cylinder is in water outlet when padding, and leaning to keep not connected water pipe by one lower face of annular convex shoulder and annular shoulder upper surface Interior position ensures that remaining water can open aperture on the centre bore on gasket to be automatically drained out, to reach in tap To the purpose for preventing tap from freezing.

In above-mentioned Auto-drainage connector, there is circular step in the water outlet, big spring is equipped in water outlet, The lower end of big spring is withstood on the upper surface of cylinder, and the upper end of big spring withstands on circular step towards on the face of cylinder upper surface.

Big spring is set in water outlet, and the upper end of big spring withstands on circular step towards on the face of cylinder upper surface, greatly The lower end of spring is withstood on the upper surface of cylinder, and allow for cutting ferrule in this way has the trend moved down always, especially at this Auto-drainage connector be not connected with water pipe when, big spring elastic force cooperation under can make always support element upper end far from gasket under End face prevents the fire hose so that it is guaranteed that the ponding remained in tap can be automatically drained out by this Auto-drainage connector to play The effect that head freezes.

In above-mentioned Auto-drainage connector, the cylinder lower end extends to outside water outlet, and on the outside of cylinder lower end With annular shoulder block two, when connecting water pipe, the upper surface of annular shoulder block two and the lower face of annular shoulder lean.

The elastic force effect of support element is closely coupled with cylinder, and annular shoulder block two is arranged on the outside of cylinder lower end, when The axial position of cylinder can be made by being leant by the upper surface of annular shoulder block two and the lower face of annular shoulder when connecting upper hose It sets and is fixed, then the elastic force of support element can act on sealing element always, the upper surface of such support element can be in water pipe It steadily withstands on the lower face of gasket after connection, cannot be introduced into water outlet with the residual water ensured in tap, to It is not in interference to avoid the guard tube freezing function of this Auto-drainage connector and anti-tap freezing function.

In above-mentioned Auto-drainage connector, the cylinder adopts cylinder upper surface made of plastic, described circumferentially Equipped with several notches.

Due to the presence of annular shoulder, cylinder upper end band annular shoulder block one can not in normal mounting to water outlet, because This is in the circumferentially arranged several notches in cylinder upper surface, then to coordinate upper shell to adopt made of plastic so that cylinder upper end can lead to Inside contraction distortion is crossed to be packed into water outlet, so that this Auto-drainage connector is able in water outlet utilize cutting ferrule and branch The cooperation of support member is freezed realizing anti-antipriming pipe and prevents tap from freezing.

In above-mentioned Auto-drainage connector, the cutting ferrule further includes guide post and several weeks being located on the inside of cylinder To the connection sheet being distributed on the outside of guide post, the guide post along cylinder axial direction be arranged, each connection sheet with outside guide post Wall and cylinder inboard wall are fixedly connected with, and the support element includes valve rod and the little spring that is set on valve rod, and valve rod, which passes through, to be oriented to Column, little spring lower end act on the junction of each connection sheet and guide post, and little spring upper end acts on valve rod.

It further includes on the inside of cylinder that cutting ferrule, which is set as, and axially disposed guide post and several circumferential directions are distributed on and lead The connection sheet being fixedly connected with cylinder inboard wall on the outside of to column and by guiding column outer wall, support element include valve rod and are set on valve rod Little spring, little spring and valve rod can be driven to move up together when cutting ferrule moves up, while valve rod upper end is in little spring It is withstood on the lower face of gasket under elastic force effect.The presence of each connection sheet the setting of cutting ferrule not interfere with normally to go out Water, while the setting of guide post is again so that having the structure that valve rod can be made to pass through on cutting ferrule and little spring lower end can be allowed to support Thus the position leaned on makes so as to change the matching relationship between support element and gasket by the variation of cutting ferrule position Obtaining this Auto-drainage connector can realize that being automatically drained out for ponding is remained in water pipe freezes to prevent antipriming pipe when connecting water pipe, and Being automatically drained out to prevent water tap from freezing for ponding is remained in realization tap when water pipe removes.

In above-mentioned Auto-drainage connector, as another technical solution, the cutting ferrule further includes being located in cylinder The guide post of side and several circumferential directions are distributed on the connection sheet on the outside of guide post, and the guide post is arranged along the axial direction of cylinder, Each connection sheet is fixedly connected with guiding column outer wall and cylinder inboard wall, and the support element is support spring, and support spring lower end is inserted In guide post, the lower face of support spring is resisted against the upper surface of each connection sheet.

It further includes on the inside of cylinder that cutting ferrule, which is set as, and axially disposed guide post and several circumferential directions are distributed on and lead The connection sheet being fixedly connected with cylinder inboard wall on the outside of to column and by guiding column outer wall, support element is support spring, and each connection sheet is deposited The setting of cutting ferrule is being enable not interfere with normal water outlet, while the setting of guide post support spring to be inserted in lead again It is formed and is connected with cutting ferrule on column, so as to change the cooperation between support element and gasket by the variation of cutting ferrule position Relationship, so that this Auto-drainage connector can realize that remaining ponding in water pipe is automatically drained out to prevent when connecting water pipe Water pipe freezes, and realizes that residual ponding is automatically drained out to prevent water tap from freezing in tap when water pipe removes.

In above-mentioned Auto-drainage connector, the valve rod includes cylinder and diaphragm seal, diaphragm seal connection In cylinder upper end, when cutting ferrule moves up, diaphragm seal is resisted against on gasket lower face and by the lower opening of centre bore on gasket Mouth closing.

Valve rod includes cylinder and diaphragm seal, cylinder play the role of it is matched with cutting ferrule, cutting ferrule move up or to It moves up or down, enable the elastic force of little spring far from gasket or acts on cylinder and little spring when lower mobile On gasket, so that this Auto-drainage connector is achieved anti-antipriming pipe and freezes or prevent tap from freezing；Diaphragm seal then exists By the lower orifice closing of centre bore on gasket after connection water pipe, this is primarily to play the aqueous reflux return water in anti-antipriming pipe Effect in tap.

In above-mentioned Auto-drainage connector, the cylinder includes from top to bottom head, bar portion and tail portion, bar successively Portion passes through guide post, the upper end of little spring to withstand on the lower face on head, and tail portion is in elastic force of the barb-like and tail portion in little spring It is buckled on the lower face of guide post under effect.

Head is arranged primarily to the upper end with little spring matches, and tail portion is set as barb-like primarily to anti- Only cylinder is mutually disengaged with cutting ferrule, can be made more stably be coordinated between little spring, valve rod and cutting ferrule in this way and be come in fact Now anti-antipriming pipe freezes and prevents tap from freezing.

In above-mentioned Auto-drainage connector, the head upper surface has positioning plush copper, positions the longitudinal section of plush copper T-shaped, diaphragm seal is set on the smaller part of positioning plush copper outer diameter, and it is larger that the outer rim of diaphragm seal extends to positioning plush copper outer diameter Part is outer, and has the sealing protruded in a ring at the upper end edge of diaphragm seal, and the centre bore and sealing of gasket are coaxial The internal diameter of line and sealing is less than the aperture of centre bore on gasket.

Since positioning plush copper is positioned on the head end face, while the longitudinal section for positioning plush copper is T-shaped, and diaphragm seal is set in positioning On the smaller part of plush copper outer diameter, it is meant that diaphragm seal is axial limiting.It is in ring to have simultaneously at the upper end edge of diaphragm seal The sealing of shape protrusion, the centre bore of gasket are less than the hole of centre bore on gasket with the internal diameter of sealing axis and sealing Diameter, in this way after connection water pipe makes cutting ferrule move up, sealing upper surface can be resisted against on the lower face of gasket, and close Aperture can fall aperture under the centre bore for making gasket on the inside of sealing and be closed under the centre bore of packing, thus by the fire hose Ponding in head separates in water inlet end, while keeping air admission hole to open always to enable outside air to enter in water outlet simultaneously Residual ponding in water pipe is automatically drained out, is freezed to prevent antipriming pipe.

Compared with prior art, cutting ferrule and support element is arranged in this Auto-drainage connector in water outlet, passes through cutting ferrule and branch Residual water in water pipe can not only be automatically drained out, freeze to prevent antipriming pipe, while can also be torn open in water pipe by the cooperation of support member Residual water in tap is also automatically drained out after lower, to prevent water tap from freezing, further improves this Auto-drainage connector Practicability, enrich function.

Description of the drawings

Fig. 1 be in embodiment one this Auto-drainage connector be not connected with water pipe when sectional view.

Fig. 2 is cuing open when this Auto-drainage connector is not connected with water pipe and is automatically drained out ponding inside tap in embodiment one View.

Fig. 3 be in embodiment one this Auto-drainage connector connection water pipe and tap open when sectional view.

Fig. 4 be in embodiment one this Auto-drainage connector connection water pipe and tap close when sectional view.

Fig. 5 is the sectional view of valve rod in embodiment one.

In figure, 1, ontology；1a, water inlet end；1b, water outlet；1b1, annular shoulder；1b2, circular step；1c, air admission hole； 2, gasket；2a, support portion；3, catch；4, cutting ferrule；4a, cylinder；4a1, annular shoulder block one；4a2, annular shoulder block two；4a3, it lacks Mouthful；4b, guide post；4c, connection sheet；5, support element；6, big spring；7, valve rod；7a, cylinder；7a1, head；7a11, convex Head；7a2, bar portion；7a3, tail portion；7b, diaphragm seal；7b1, sealing；8, little spring；9, tap；10, water pipe；11, locking screw It is female.

Specific implementation mode

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

Embodiment one

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of Auto-drainage connector, including ontology 1,1 upper end of ontology are to be used for and water It is provided through locking hole on the outside of tap 9 connected water inlet end 1a, water inlet end 1a, locking hole internal thread is connected with lock screw, When mounted, the water inlet end 1a of ontology 1 is sleeved on outside the water outlet of tap 9, then tightens lock screw and is fixed on ontology 1 On the water outlet of tap 9.1 lower end of ontology is the water outlet 1b for being connected with water pipe 10, has screw thread on the outside of the 1b of water outlet, In use, being socketed locking nut 11 on the outside of 10 end of water pipe, 10 end of water pipe and the end face of water outlet 1b are leant, then Locking nut 11 is threaded on the screw thread on the outside of the 1b of water outlet, water pipe 10 is made to be fixed together with ontology 1.

As shown in Figure 1, having circular orientation step in the water inlet end 1a of ontology 1, compression is provided on circular orientation step Ring, compression ring include ring body, the catch 3 on the inside of ring body and are fixedly connected with 3 outer wall of catch inner wall of ring body several Bar.1 inside of ontology also has annular positioning groove, and gasket 2 in a ring is equipped in annular positioning groove, and gasket 2 has elasticity, Gasket 2 is located at the top of annular seal groove, and the inner edge of gasket 2 is stretched out outside annular seal groove, 3 lower end of catch on compression ring Face and the upper surface of gasket 2 lean, and catch 3 blocks the centre bore of gasket 2.

As shown in Figure 1, the lower part cell wall of annular positioning groove is arc-shaped, it is in arc downwards to have at the lower end edge of gasket 2 The support portion 2a of shape bending, support portion 2a are located at the lower part of annular positioning groove, and the lateral wall of support portion 2a is cambered surface, outside ontology 1 Side is provided through air admission hole 1c, and air admission hole 1c is connected with the lower part of annular seal groove, and when water inlet, gasket 2 can be downward It deforms and closes air admission hole 1c.

As Figure 1-Figure 4, it has been in axial sliding connection cutting ferrule 4 along ontology 1 in the water outlet 1b of ontology 1, cutting ferrule 4 includes There is in the cylinder 4a of both ends open, water outlet 1b at proximal port annular shoulder 1b1, there is annular gear on the outside of the upper ends cylinder 4a There is annular shoulder block two 4a2, annular shoulder 1b1 to be located at annular one 4a1 of shoulder block and annular gear for one 4a1 of shoulder, cylinder 4a lower end outsides Between two 4a2 of shoulder.There is circular step 1b2 in the water outlet 1b of ontology 1, be equipped with big spring 6 in the water outlet 1b of ontology 1, greatly The lower end of spring 6 withstands on the upper surface of cylinder 4a, and the upper end of big spring 6 withstands on circular step 1b2 towards the upper surfaces cylinder 4a On face, the lower ends cylinder 4a are stretched out under the elastic force effect of big spring 6 outside the water outlet 1b of ontology 1 and under one 4a1 of annular shoulder block End face is resisted against on the upper surface of annular shoulder 1b1, after connecting water pipe cutting ferrule 4 move up and annular two 4a2 of shoulder block it is upper End face is resisted against on the lower face of annular shoulder 1b1.Cylinder 4a adopts made of plastic, and the upper surfaces cylinder 4a are circumferentially arranged with several Notch 4a3, due to the presence of annular shoulder 1b1, one 4a1 of the upper ends cylinder 4a band annular shoulder block be can not normal mounting to water outlet In 1b, therefore in the circumferentially arranged several notch 4a3 in the upper surfaces cylinder 4a, then to coordinate upper shell 4a to adopt made of plastic, makes Obtaining the upper ends cylinder 4a can be packed by inside contraction distortion in the 1b of water outlet.

As Figure 1-Figure 4, cutting ferrule 4 further includes guide post 4b and several circumferentially uniformly distributed companies being located on the inside of cylinder 4a Contact pin 4c, each connection sheet 4c are fixedly connected with guide post 4b outer walls and cylinder 4a inner walls.Flexible branch is connected on cutting ferrule 4 Support member 5 has gap, when cutting ferrule 4 moves up 5 upper end of rear support between the upper end and the lower face of gasket 2 of support element 5 It can withstand on 2 lower face of gasket.

Specifically, as shown in Figure 1, support element 5 includes valve rod 7 and the little spring 8 being set on valve rod 7,7 edge of valve rod Ontology 1 is axial to be arranged, and axially through pilot hole is provided on guide post 4b, 7 lower end of valve rod is under pilot hole, little spring 8 End acts on the junction of each connection sheet 4c and guide post 4b, and 8 upper end of little spring acts on valve rod 7, and valve rod 7 is in little spring There is the trend close to 2 lower face of gasket upwards always under 8 elastic force effect.

As shown in Figure 1 and Figure 5, valve rod 7 includes cylinder 7a and diaphragm seal 7b, and diaphragm seal 7b is connected to main body upper end, when Diaphragm seal 7b is resisted against on 2 lower face of gasket and by the lower orifice closing of centre bore on diaphragm seal 7b when cutting ferrule 4 moves up. Cylinder 7a includes from top to bottom head 7a1, bar portion 7a2 and tail portion 7a3 successively, and bar portion 7a2 passes through the guiding on guide post 4b Hole, little spring 8 is set on bar portion 7a2 and the upper end of little spring 8 is withstood on the lower face of head 7a1, and tail portion 7a3 is in barb-like And tail portion 7a3 is buckled under the elastic force effect of little spring 8 on the lower face of guide post 4b.

As shown in Figure 1 and Figure 5, the upper surfaces head 7a1 have positioning plush copper 7a11, and the longitudinal section of positioning plush copper 7a11 is in T Type, diaphragm seal 7b are set on the smaller part of positioning plush copper 7a11 outer diameters, and the outer rim of diaphragm seal 7b extends to positioning plush copper 7a11 Outside the larger part of outer diameter, the upper end edge of diaphragm seal 7b has the sealing 7b1 protruded in a ring, the centre bore of gasket 2 It is less than the aperture of centre bore on gasket 2, the upper surface of sealing 7b1 with the internal diameter of sealing 7b1 coaxial lines and sealing 7b1 There is gap between the lower face of gasket 2, and when cylinder 4a overcomes the elastic force of big spring 6 to act on and while moving up seals The upper surface of portion 7b1 and the lower face of gasket 2 lean.It is supported with 2 lower face of gasket to increase the upper surfaces sealing 7b1 By when contact area, improve sealing effect, there is annular lug in the upper end peripheral side of sealing 7b1.

As shown in Figure 1, after this Auto-drainage connector is mounted on the water outlet of tap 9, in not connected water pipe 10, card The lower ends cylinder 4a of set 4 under the elastic force effect of big spring 6 are stretched out outside the water outlet 1b of ontology 1, in this state, although Valve rod 7 has the trend that moves up always under the elastic force effect of little spring 8, but the elastic force effect of big spring 6 at this time with it is small The elastic force effect of spring 8 is opposite, therefore on diaphragm seal 7b between the upper surface of sealing 7b1 and the lower face of gasket 2 With gap.

If as shown in Fig. 2, having ponding in tap 9 after the closing of tap 9, then the ponding in tap 9 will be in weight It is flowed under power in the water inlet end 1a of ontology 1 and positive effect is on the upper surface of gasket 2, although gasket 2 has elasticity, The elastic force of itself of gasket 2 is to be less than its own gravity of 9 internal water accumulation of tap, close therefore after the impact by ponding It can be deformed downwards at the center of packing 2, to make the upper surface of gasket 2 be separated with compression ring, the centre bore on gasket 2 Thus it is opened, so, the centre bore that ponding will be on sealed pad 2 enters in the water outlet 1b of ontology 1, and by being discharged End 1b is flowed outwardly, that is to say, that the ponding in tap 9 is just drained, to prevent tap 9 from freezing because of internal ponding. After water drains, gasket 2 resets upwards under the elastic force effect of itself, and the upper surface of gasket 2 offsets with compression ring again It leans on and blocks the centre bore on gasket 2.

As shown in figure 3, when this Auto-drainage connector connects water pipe 10, water pipe 10 can overcome the cylinder 4a of cutting ferrule 4 greatly The elastic force of spring 6 is acted on and is inwardly squeezed, and is equivalent to cutting ferrule 4 at this time and is moved up relative to valve rod 7.It is finished in the connection of water pipe 10 Afterwards, the end face of water pipe 10 and the end face of the water outlet 1b of ontology 1 lean, and the position of cutting ferrule 4 is just fixed, at this time valve rod 7 move up under the effect of the elastic force of little spring 8 again so that under the upper surfaces sealing 7b1 and gasket 2 on diaphragm seal 7b End face leans, that is to say, that the elastic force of little spring 8 is acted at this time on gasket 2.When tap 9 is opened, the fire hose Water in first 9 enters in the water inlet end 1a of ontology 1, and the pressure intake at this time is to be greater than gasket 2 elastic force of itself to add small bullet The elastic force of spring 8, therefore deformed downwards at 2 center of gasket and the centre bore of gasket 2 is made to open, flow enters going out for ontology 1 In water end (W.E.) 1b and finally flow into water pipe 10.

As shown in figure 4, after closing tap 9, gasket 2 resets under the elastic force effect of itself, while little spring 8 Elastic force act on again on gasket 2, gasket 2 leans with compression ring and the centre bore on gasket 2 is made to be sealed again It closes.At this point, even if with the presence of ponding and entering in the water inlet end 1a of ontology 1 in tap 9, but the gravity of ponding itself is to want small Add the elastic force of little spring 8 in 2 own resilient of gasket, therefore ponding is just isolated in the water inlet end 1a of ontology 1.Meanwhile Also remain ponding in water pipe 10, outside air can enter in ontology 1 through air admission hole 1c, and due to the upper surface of gasket 2 It leans with compression ring and the centre bore upper port of gasket 2 is caused to be enclosed, therefore outside air can only going out along ontology 1 Water end (W.E.) 1b remaining ponding in water pipe 10 is discharged into oral siphon 10, freezes to prevent antipriming pipe 10.It is remaining in water pipe 10 After ponding emptying, then water pipe 10, which is removed, makes this Auto-drainage connector restore to the state of not connected water pipe 10, remains in this way Water in tap 9 will be automatically drained out by abovementioned steps.

Embodiment two

The present embodiment is essentially identical with the structure and principle of embodiment one, the difference is that：In the present embodiment, it supports Part 5 is support spring, and support spring lower end is inserted on guide post 4b, and the lower face of support spring is resisted against the upper of each connection sheet 4c On end face.Support element 5 is support spring, and the presence of each connection sheet 4c enables the setting of cutting ferrule 4 not interfere with normal water outlet, Support spring is enable to be inserted on guide post 4b again for the setting of guide post 4b simultaneously and cutting ferrule 4 is formed and connected, so as to logical The variation of 4 position of cutting ferrule is crossed to change the matching relationship between support element 5 and gasket 2, so that this Auto-drainage connector It can realize that being automatically drained out for ponding of residual is freezed to prevent antipriming pipe 10 in water pipe 10 when connecting water pipe 10, and be torn open in water pipe 10 Being automatically drained out to prevent water tap 9 from freezing for the interior residual ponding of tap 9 will be realized when lower.

Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (10)

1. a kind of Auto-drainage connector, including upper end is water inlet end (1a), lower end is water outlet (1b) ontology (1), water inlet end The catch (3) that gasket (2) and cross section in a ring is less than gasket (2) is equipped in (1a), catch (3) is resisted against sealing It pads on (2) and by orifice closing on the centre bore of gasket (2), ontology (1) outside is equipped with the air inlet communicated with water outlet (1b) Hole (1c), when water inlet, gasket (2) can deform downwards and close air admission hole (1c), which is characterized in that the water outlet Cutting ferrule (4) is slidably connected in end (1b), flexible support element (5), the upper end of support element (5) are connected on cutting ferrule (4) There is gap between the lower face of gasket (2), gasket can be withstood on by moving up rear support (5) upper end in cutting ferrule (4) (2) on.

2. Auto-drainage connector according to claim 1, which is characterized in that the cutting ferrule (4) includes both ends open There is in the water outlet (1b) at proximal port cylinder (4a) annular shoulder (1b1), cylinder (4a) to be located at annular shoulder On the inside of (1b1), and there is annular shoulder block one (4a1), described lower face annular shoulder block one (4a1) on the outside of the upper end cylinder (4a) It leans with the upper surface annular shoulder (1b1).

3. Auto-drainage connector according to claim 2, which is characterized in that have cyclic annular platform in the water outlet (1b) Rank (1b2) is equipped with big spring (6) in water outlet (1b), the lower end of big spring (6) is withstood on the upper surface of cylinder (4a), big bullet The upper end of spring (6) withstands on circular step (1b2) towards on the face of the upper surface cylinder (4a).

4. Auto-drainage connector according to claim 3, which is characterized in that described lower end cylinder (4a) extends to water outlet (1b) outside, and has annular shoulder block two (4a2), the annular shoulder block two when connecting water pipe (10) on the outside of the lower end cylinder (4a) The upper surface of (4a2) and the lower face of annular shoulder (1b1) lean.

5. Auto-drainage connector according to claim 4, which is characterized in that the cylinder (4a) adopt it is made of plastic, The cylinder upper surface (4a) is circumferentially arranged with several notches (4a3).

6. the Auto-drainage connector according to Claims 2 or 3 or 4 or 5, which is characterized in that the cutting ferrule (4) further includes Guide post (4b) and several circumferential directions on the inside of cylinder (4a) are distributed on the connection sheet (4c) on the outside of guide post (4b), described Guide post (4b) along cylinder (4a) axial direction setting, each connection sheet (4c) with guide post (4b) outer wall and cylinder (4a) inner wall It is fixedly connected with, the support element (5) includes valve rod (7) and the little spring (8) being set on valve rod (7), and valve rod (7) is passed through and led To column (4b), little spring (8) lower end acts on the junction of each connection sheet (4c) and guide post (4b), and little spring (8) upper end is made On valve rod (7).

7. the Auto-drainage connector according to Claims 2 or 3 or 4 or 5, which is characterized in that the cutting ferrule (4) further includes Guide post (4b) and several circumferential directions on the inside of cylinder (4a) are distributed on the connection sheet (4c) on the outside of guide post (4b), described Guide post (4b) along cylinder (4a) axial direction setting, each connection sheet (4c) with guide post (4b) outer wall and cylinder (4a) inner wall It is fixedly connected with, the support element (5) is support spring, and support spring lower end is inserted in guide post (4b), the lower end of support spring Face is resisted against the upper surface of each connection sheet (4c).

8. Auto-drainage connector according to claim 6, which is characterized in that the valve rod (7) include cylinder (7a) with And diaphragm seal (7b), the diaphragm seal (7b) are connected to the upper end cylinder (7a), the diaphragm seal (7b) when cutting ferrule (4) moves up It is resisted against on gasket (2) lower face and by the lower orifice closing of centre bore on gasket (2).

9. Auto-drainage connector according to claim 8, which is characterized in that the cylinder (7a) from top to bottom wraps successively Including head (7a1), bar portion (7a2) and tail portion (7a3), bar portion (7a2) passes through guide post (4b), the upper end of little spring (8) to push up On the lower face of head (7a1), tail portion (7a3) is buckled in barb-like and tail portion (7a3) under the elastic force effect of little spring (8) On the lower face of guide post (4b).

10. Auto-drainage connector according to claim 9, which is characterized in that described upper surface head (7a1) has fixed Position plush copper (7a11), positioning plush copper (7a11) longitudinal section it is T-shaped, diaphragm seal (7b) be set in positioning plush copper (7a11) outer diameter compared with On small part, the outer rim of diaphragm seal (7b) extends to outside the larger part of positioning plush copper (7a11) outer diameter, and at diaphragm seal (7b) Upper end edge there is the sealing (7b1) that protrudes in a ring, the centre bore of gasket (2) and sealing (7b1) coaxial line and The internal diameter of sealing (7b1) is less than the aperture of centre bore on gasket (2).