Check valve of current limiter structure
Technical field
Pipeline valve structure is the utility model is related to, particularly relates to a kind of Check valve of current limiter structure.
Background technology
Water resource shortage is the major issue of global concern, and using water wisely in daily life is the environmentally friendly class for needing to advocate
Topic.In some public places, current are always opened very big, actually such mass-flow also only has by people for convenience of water is used
20% or so flowing water plays cleaning function, and 80% or so water is to waste in addition, thus for up to water-saving purpose, it is necessary to
The current-limiting apparatus for forcing water saving is set;In addition, in case of cut off the water suddenly or when hydraulic pressure changes in some water routes, pipeline
Backflow phenomenon can also occur for current, remain in a standstill for a long time in pipeline and form the easy breed bacteria of current contacted, hair with air
Raw backflow can pollute to watering, influence the safety of water source.But typically there was only the limit of single current-limiting function on the market at present
The check valve of valve or single inverse-stopping functions is flowed, and the valve mechanism of integrated current limliting and inverse-stopping functions is more complicated, it is therefore desirable to
It is a kind of simple in construction, while the valve mechanism of current limliting and inverse-stopping functions can be realized, thus this case just produces.
Utility model content
The purpose of this utility model is to provide a kind of Check valve of current limiter structure, and its is simple in construction, at the same have current limliting and
Non-return two kinds of functions, can not only using water wisely, while water safety can also be ensured.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of Check valve of current limiter structure, include the bonnet and base of mutual cooperation, wherein the bonnet is a column sleeve, bonnet
Upper end is water inlet, and the current limliting body for coordinating current limiting sealing ring, the external diameter of the current limliting sealing ring are provided among the water inlet
Less than the internal diameter of water inlet, the bonnet inwall below the current limliting body is inwards formed with block face;The block face and base of the bonnet
Between activity be combined with nonreturn valve core, spring is provided between the nonreturn valve core and base;The nonreturn valve core includes sealing piece
With valve rod of the cooperation in sealing piece lower surface, the sealing piece is combined with non-return sealing ring, the minimum inner edge diameter of the block face
Less than the external profile diameter of sealing piece;The base is also a column sleeve, and its lower end is formed goes out the water surface, the water outlet with apopore
Face is provided with the limited post coordinated for valve rod.
The current limliting body includes a body and some limit ribs on body, and current limliting body passes through with water inlet to be connected
Rib is connected, and described current limliting sealing ring is combined between the body and limit ribs, and some limit ribs are formed most
Big external profile diameter is less than the internal diameter of current limliting sealing ring.
The limit ribs are from the outward-dipping arrangement in the centre of body.
The water hole run through up and down is formed among the current limliting body.
The limited post is hollow-core construction, and valve rod is placed through in limited post.
The valve rod is hollow-core construction, and valve rod is nested with limited post.
The periphery of the base is upwardly formed several leads, and the inner edge diameter that the lead is formed is equal to sealing piece
The diameter of side.
The sealing piece is upwardly formed the necking down coordinated for non-return sealing ring, and necking down forms outwardly confined planes,
The external profile diameter of the confined planes is less than the external profile diameter of sealing piece.
The water inlet includes middle circular several gap regions for crossing aqua region and outer rim.
The lower end of the spring acts against out the upper surface of the water surface, and the upper end of spring is held in the lower surface of sealing piece.
After said structure, the utility model changes water inlet by the transverse deformation of the current limliting sealing ring on water inlet
Discharge area realize current-limiting function, the forward direction for passing through nonreturn valve core between bonnet and base mobile opens water route and list
Reversing reset movement to valve element closes water route and realizes the inverse-stopping functions in water route, simple in construction, can using water wisely, and can protects
Hinder water safety.
Brief description of the drawings
Fig. 1 is three-dimensional exploded view of the present utility model;
Fig. 2 is profile of the present utility model(Normally without water inlet);
Fig. 3 is profile of the present utility model(State one);
Fig. 4 is top view of the present utility model(State one);
Fig. 5 is profile of the present utility model(State two);
Fig. 6 is top view of the present utility model(State two);
Fig. 7 is profile of the present utility model(State three);
Fig. 8 is top view of the present utility model(State three);
Fig. 9 is profile of the present utility model(State four).
Symbol description:
The body 121 of 1 water inlet of bonnet, 11 current limliting body 12
The water hole 123 of limit ribs 122
The block face 15 of 13 connecting bar of current limliting sealing ring 14
The sealing ring 17 of groove 16
Base 2 goes out the lead 23 of 21 limited post of the water surface 22
The confined planes 312 of 3 sealing piece of nonreturn valve core, 31 necking down 311
The non-return sealing ring 33 of valve rod 32
Spring 4.
Embodiment
In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row elaborates.
As shown in Figures 1 to 9, the utility model discloses a kind of Check valve of current limiter structure, and it can be installed on water outlet dress
In putting, the water inlet of gondola water faucet is such as installed on, or is installed in the water outlet of tap.
Described Check valve of current limiter structure includes the bonnet 1 and base 2 to cooperate, and the water inlet 11 of the bonnet 1 is set
Limited fluid 12, current limiting sealing ring 13 is coordinated on the current limliting body 12, the external diameter of the current limliting sealing ring 13 is less than water inlet
11 internal diameter, between bonnet 1 and base 2 activity be combined with nonreturn valve core 3, spring 4 is provided between nonreturn valve core 3 and base 2;Just
When often crossing water, nonreturn valve core 3 and spring 4 be pressurized it is positive it is mobile open water route, the current limliting sealing ring 13 on current limliting body 12 is pressurized meeting
The discharge area of generation transverse deformation and then change water inlet 11 reaches the purpose of current limliting;When being more than water inlet end in water outlet end pressure
During pressure, that is, when backflow phenomenon occurs, the reverse movement under the effect of the reset force of spring 4 of nonreturn valve core 3 can close water route, prevent
Water side current are back to water inlet end.
Coordinate Fig. 1, specifically, the bonnet 1 is a column sleeve, upper end is water inlet 11, and lower end is with base 2 with synthesis one
Body, the water inlet 11 connect the current limliting body 12 by some connecting bars 14, and the current limliting body 12 includes the He of a body 121
Some limit ribs 122 on body 121, the current limliting sealing is combined between the body 121 and limit ribs 122
Circle 13, wherein described limit ribs 122 can be from the outward-dipping arrangement in the centre of body 121 so that limit ribs 122 are presented
A kind of petal-shaped of expansion, so that the maximum external profile diameter of the limit ribs 122 is more than the internal diameter of current limliting sealing ring 13
So that current limliting sealing ring 13 can be nested on current limliting body 12, prevent current limliting sealing ring 13 from being come off from current limliting body 12.In current limliting
The inwall of bonnet 1 of the lower section of body 12 is inwards formed with block face 15 to coordinate nonreturn valve core 3 to realize the opening and closing in water route.It is described
The lateral wall of bonnet 1 can form groove 16 with fitted seal circle 17 and form sealing with discharging device and coordinate.
The nonreturn valve core 3 includes sealing piece 31 and coordinates the valve rod 32 in the lower surface of sealing piece 31;The block face 15
Minimum inner edge diameter is less than the external profile diameter of sealing piece 31, and the nonreturn valve core 3 is located between block face 15 and base 2;It is described to stop
Water piece 31 is upwardly formed a necking down 311 for being combined with non-return sealing ring 33, formed in necking down outwardly confined planes 312 with
Limit non-return sealing ring 33;For ensure sealing piece 31 can against block face 15 and cause non-return sealing ring 33 be in close contact with block face 15
Form sealing to coordinate, the external profile diameter of the confined planes 312 is less than the external profile diameter of sealing piece 31.
The base 2 is also a column sleeve, and its top forms inner chamber and placed for nonreturn valve core, and lower end is formed with apopore
Go out the water surface 21, go out the water surface 21 herein and coordinate provided with limited post 22 for the valve rod 32 of nonreturn valve core 3, to be realized to nonreturn valve core 3
The spacing function of guiding action.Wherein described limited post 22 can be hollow structure so that valve rod 32 places;Can also be described
Valve rod 32 is hollow structure, and the limited post 22 is nested with for valve rod 32.Further, the periphery of the base 2 can be upwardly formed
Several leads 23, the inner edge diameter that the lead 23 is formed are equal to the diameter of the side of sealing piece 31, are ensureing this practicality
By lead 23 and limited post 22 it is also ensured that the direction that nonreturn valve core 1 moves will not be inclined while new discharge capacity
Move, can guarantee that sealing piece 31 coordinates with the sealing of block face 15.
The lower end of the spring 4 acts against out the upper surface of the water surface 21, and upper end is held in the lower surface of sealing piece 31.
During actual use, the utility model is assembled in the water route of discharging device, as shown in Fig. 2 normally without water inlet when, bullet
Spring 4 is to make the sealing piece 31 of nonreturn valve core 3 hold block face 15 in normal condition, and water route is blocked, and now the water in water route is
It can not be flowed back from lower to upper part of the present utility model, realize the function of unidirectional counterflow-preventing.
Coordinate shown in Fig. 3, Fig. 5 and Fig. 7, when opening effluent switch and making discharging device normally intake, current are from bonnet 1
Water inlet 11 enters, and is acted on by hydraulic pressure, and nonreturn valve core 3 can be positive mobile downwards, and sealing piece 31 departs from block face 15, sealing piece 15
Water space was formed with the inwall of bottom 2 or the inwall of bonnet 1, realizes normal effluent functions, spring 4 now is in pressure
Contracting energy accumulating state, water pressure hour is served as, i.e., for the moment, as shown in Figure 3 and Figure 4, hydraulic pressure is insufficient to allow current limliting sealing ring 13 to state
Deformation, now the discharge area of water inlet 11 is maximum;When the water flow pressure further increases, i.e., state two when, such as Fig. 5 and figure
Shown in 6, hydraulic pressure acts on the upper surface of current limliting sealing ring 13, and because of the elastic characteristic of current limliting sealing ring 13, current limliting is acted on by hydraulic pressure
Transverse deformation can occur for sealing ring 13, so as to reduce the discharge area of its water inlet 11, so realize flow control function, reach
The purpose of water saving.
Further, the water inlet 11 can include middle circular several relief areas for crossing aqua region and outer rim
Domain so that when the water flow pressure continues increase, i.e. state three, as shown in Figure 7 and Figure 8, current limliting sealing ring 13 produce maximum distortion,
Block the circular of water inlet 11 and cross aqua region, and gap regions normal can also cross water, ensure that forward direction of the present utility model crosses water
Ability.The water hole 123 run through up and down can also be formed among the current limliting body 12, to ensure that forward direction of the present utility model crosses water
Ability.
The utility model is when water side pressure occur and being more than water inlet end pressure, i.e. state four, as shown in figure 9, sealing piece
When 31 insufficient pressures born against spring 4 to compress the elastic force resetted, spring 4 promotes sealing piece 31 to reset, and sealing piece 31 is anti-
To moving up, sealing piece 31 coordinates with the sealing of block face 15, closes water route, can effectively prevent occurring backflow phenomenon in pipeline.
In summary, the utility model realizes current limliting work(by the transverse deformation of the current limliting sealing ring 13 on water inlet 11
Can, the inverse-stopping functions in water route are realized by the displacement of the nonreturn valve core 3 between bonnet 1 and base 2, it is simple in construction, can
Using water wisely, and can ensure water safety guarantee.
Above-described embodiment and schema and non-limiting product form of the present utility model and style, any art
The appropriate change or modification that those of ordinary skill is done to it, all should be regarded as not departing from patent category of the present utility model.