Siphon air inlet/outlet valve
Technical field
The present invention relates to valve technology field, and in particular to a kind of siphon air inlet/outlet valve.
Technical background
Siphon air inlet/outlet valve is used for siphon water system, in across river dike water lift or drainage system, because pipeline needs to get over
Jiang Di, if according to maximum boosting water lift or the draining of pipeline, the pumping plant head for needing is larger, so designer often designs rainbow
Suction pipe line, can save part head, by the design requirement of municipal designing institute, be typically designed with no more than 7 meters of water in Jiang Dichu
The negative-pressure siphon pipeline of head, so as to save 7 meters of head for pumping plant.Therefore, siphon water lift or flowing line are a kind of energy-saving pipes
Line, is widelyd popularize in municipal pipeline by municipal designing institute.But, the high point of siphon water system is Jiang Dichu, at the beginning of pipeline
Automatic exhaust is needed during phase water flowing, otherwise pipeline vapour lock cannot water flowing;Need to keep negative pressure state in pipeline performance, at high point
Otherwise pipeline siphon is destroyed;Need quickly to eliminate negative pressure to sky at high point during termination of pumping, otherwise river can pour in down a chimney.And existing sky
Air valve cannot concurrently reach above-mentioned three kinds of requirements.
The content of the invention
The present invention is aiming at above-mentioned technical problem, there is provided a kind of siphon air inlet/outlet valve, the siphon air inlet/outlet valve can not only
Automatic exhaust is realized, while when pipeline performance, can make to keep negative pressure state at high point, during termination of pumping, can effectively prevent current from falling
Fill.
In order to achieve this, the siphon air inlet/outlet valve designed by the present invention, including valve body, ball float is provided with valve body and opens and closes dress
Put, body top cooperation is fixed with bonnet, bonnet top is fixed with gland, it is characterised in that:The ball float headstock gear it is floating
Connecting rod is connected with the top of ball, suction disc is connected with the top of connecting rod, gland is provided with the magnet corresponding with suction disc.
Further, guiding trestle is provided with the bonnet, pilot hole, one end of connecting rod is provided with the middle part of guiding trestle
It is fixedly connected with the top of ball float, the other end is fixedly connected through pilot hole with suction disc.
Further, screwed hole is provided with the top of the gland, regulating bolt is fixedly connected through screwed hole with magnet.
Further, the stroke of the distance between the suction disc and magnet not less than ball float.
Further, the magnet is electromagnet.
The beneficial effects of the invention are as follows:By setting electromagnet on gland, the structure of suction disc is set on ball float, is utilized
After valve exhaust, suction disc is close-connected simultaneously with electromagnet, it is ensured that sealing of the valve under negative pressure state, simultaneously because electric
Magnet shares same switch with water pump, therefore during termination of pumping, electromagnet and suction disc can also be simultaneously switched off, and moment releases the negative pressure of valve
State, prevents aqueous reflux, and simple structure of the invention, practicality is good.
Brief description of the drawings
Fig. 1 is suction disc and the structural representation of magnet disengaging in the present invention;
Fig. 2 is the structural representation that suction disc is brought into close contact with magnet in the present invention;
Wherein, 1-valve body, 2-ball float, 3-bonnet, 4-gland, 5-suction disc, 6-magnet, 7-regulating bolt, 8-
Connecting rod, 9-pilot hole, 10-valve seat, 11-guiding trestle.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Ball float headstock gear is provided with siphon air inlet/outlet valve as shown in Figure 1, including valve body 1, valve body 1, the top of valve body 1 is matched somebody with somebody
Conjunction is fixed with bonnet 3, and the top of bonnet 3 is fixed with gland 4, and the top of the ball float 2 of the ball float headstock gear is connected with connecting rod
8, the top of connecting rod 8 is connected with suction disc 5, and gland 4 is provided with the magnet 6 corresponding with suction disc 5.Ball float headstock gear includes floating
Ball 2 and valve seat 10, ball float 2 are supported on valve seat 10, and when valve is vented, ball float 2 rises, and magnet 6 is mutually adsorbed with suction disc 5,
Ball float 2 blocks bonnet 3, realizes the sealing to valve, it is ensured that pipeline operationally, keeps negative pressure, it is ensured that siphon is steady in valve body 1
It is fixed.
In above-mentioned technical proposal, as shown in Fig. 2 being provided with guiding trestle 11 in the bonnet 3, the middle part of guiding trestle 11 is opened
The one end for having pilot hole 9, connecting rod 8 is fixedly connected with the top of ball float 2, and the other end is fixed with suction disc 5 through pilot hole 9 and connected
Connect.By the design of pilot hole 9, it is ensured that connecting rod 8 is vertically moving in valve body 1, suction disc 5 is all the time with magnet 6 just
It is right, the interaction between suction disc 5 and magnet 6 is further ensured, so as to ensure sealing of the valve body 1 under negative pressure state.
In above-mentioned technical proposal, the top of the gland 4 is provided with screwed hole, and regulating bolt 7 is consolidated through screwed hole with magnet 6
Fixed connection.Regulating bolt 7 is welded and fixed with magnet 6, and regulating bolt 7 coordinates with screwed hole, therefore regulating bolt 7 can be in screw thread
Moved up and down in hole, so that the position of regulating magnet 6.Practicality of the invention is further increased, using more convenient.
In above-mentioned technical proposal, the stroke of the distance between the suction disc 5 and magnet 6 not less than ball float 2.As shown in Fig. 2
Magnet 6 is identical with the stroke of ball float 2 with the distance between suction disc 5, and when valve seal, magnet 6 is just closely pasted with suction disc 5
Close, be preferred scheme.But effective scheme provided by the present invention is not limited thereto, if the distance between magnet 6 and suction disc 5 set
Meter is reasonable, even if being separated from each other between magnet 6 and suction disc 5, also can be by the interaction between magnet 6 and suction disc 5, and it is right to realize
Effective sealing of valve, this design reduces the length of connecting rod 8, saves material, can effectively control cost.With good
Market application value.
In above-mentioned technical proposal, the magnet 6 is electromagnet.Preferably, the magnetic field of generation is stronger for the adsorption capacity of electromagnet
And it is more stable, the switch of electromagnet is consistent with pump switch, it is ensured that electromagnet is consistent with pump working, when water pump is opened,
Automatically after exhaust, electromagnet is interacted valve with suction disc 5, and negative pressure state is kept in valve, when water pump stops, electromagnet and
Effect between suction disc 5 disappears at once, can at once eliminate negative pressure, prevents the refluence of water.
The present invention sets electromagnet in gland, and the structure of suction disc 5 is set on ball float 2, realizes valve in negative pressure shape
Sealing under state, while when also ensure that water pump stops, water will not flow backwards.After water enters valve, valve is largely vented, and floats
Ball 2 rises, while driving suction disc 5 to rise, suction disc 5 is mutually adsorbed with magnet 6, valve is sealed by ball float 2, it is ensured that valve
Door negative pressure state stabilization, when water pump stops, ball float 2 declines, and moment releases negative pressure state, effectively prevent the refluence of water, ties
Structure is simple, and easy to operate, practicality is good.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those of ordinary skill in the art disclosed herein technical scope in, the change or replacement that can be readily occurred in should all be contained
Cover within protection scope of the present invention.Therefore, the protection model that protection scope of the present invention should be limited with claims
Enclose and be defined.