CN202612738U

CN202612738U - Filtering check valve

Info

Publication number: CN202612738U
Application number: CN 201220280498
Authority: CN
Inventors: 郑珊红
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-14
Filing date: 2012-06-14
Publication date: 2012-12-19
Anticipated expiration: 2022-06-14

Abstract

The utility model relates to a fluid control valve, and provides a filtering check valve which is simple in structure, low in cost, convenient to install and operate, capable of effectively preventing medium from flowing back, and capable of filtering suspending impurities in water at the same time. The filtering check valve comprises a valve body, a valve cover, a valve clack and a valve rod, wherein the valve body is provided with a water inlet and a water outlet along the axial direction, the valve body is provided with a valve seat which is situated between the water inlet and the water outlet, the valve seat is provided with a valve port which is communicated with the water inlet and the water outlet, the valve cover is installed above the valve seat of the valve body, the valve clack is installed on the valve port of the valve seat through pressure of medium fluid in an opening and closing mode, a guide seat is installed under the valve cover, one end of the valve rod is installed inside the guide seat of the valve cover in a telescopic mode, and the other end of the valve rod is fixedly connected with the valve clack. The filtering check valve is characterized in that a detachable filtering barrel is installed at the front of the valve port where the valve body is situated.

Description

A kind of filter check valve

Technical field

The utility model relates to a kind of fluid control valve, particularly a kind of filter check valve.

Background technique

Safety check is claimed one-way valve or check valve again, and its effect is to prevent that the medium in the pipeline from flowing backwards, and is widely used in the fluid line.

Existing Lift check valve mainly comprises valve body, valve gap, flap and valve rod, and said valve body is provided with water intake and water outlet vertically; Said valve body is provided with valve seat between water intake and water outlet, have the valve port that connects water intake and water outlet on the said valve seat, and said valve gap is located at the top of the above valve seat of valve body; But on the valve port of being located at valve seat of said flap through the pressure folding of medium fluid, said bonnet lower is provided with guide holder, and an end of said valve rod is telescopic to be located in the guide holder of valve gap; The other end is fixedly connected with flap; When the pressure of water intake during greater than the pressure of water outlet, thereby can making valve rod move upward, pressure medium washes flap open, pass through smoothly; When the pressure of water outlet during greater than the pressure of water intake; Flap is closed under the effect of refluence medium and deadweight, and its sealing surface and sealing surface of seat closely cooperate, and plays the effect that stops flowing medium to flow backwards.Existing Lift check valve can not filter out the impurity that suspends in the water, in order to remove the impurity that suspends in the pipeline because its valve body does not possess filtering function; After installing safety check on the tap water pipe line, also need mounting filtering valve near the pipeline adjacent safety check, because filter tap and the non-integrative-structure of safety check; Must install respectively, fitting operation is complicated, time-consuming, effort; Increased the junction point of pipeline, also improved installation and maintenance cost simultaneously, made troubles to the workmen; And the partial installation filter tap takies pipeline location, and filter tap cleans and change trouble.

The model utility content

To the problems referred to above, the utility model propose a kind of simple in structure, cost is low, installation, easy to operate, can prevent effectively that medium from flowing backwards, can also filter out the filter check valve of suspended impurity in the water non-return time.

For solving this technical problem; The utility model is taked following scheme: a kind of filter check valve, comprise valve body, valve gap, flap and valve rod, and said valve body is provided with water intake and water outlet vertically; Said valve body is provided with valve seat between water intake and water outlet; Have the valve port that connects water intake and water outlet on the said valve seat, said valve gap is located at the top of the above valve seat of valve body, but on the valve port of being located at valve seat of said flap through the pressure folding of medium fluid; Said bonnet lower is provided with guide holder; One end of said valve rod is telescopic to be located in the guide holder of valve gap, and the other end is fixedly connected with flap, and said valve body is positioned at the also removable cartridge filter that is equipped with in the place ahead of valve port.

Further improvedly be: the bottom that said valve body is positioned at the valve seat valve port is outward extended with the oblique chamber of cartridge filter that connects entery and delivery port; Said cartridge filter is removable to be installed in the oblique chamber of cartridge filter, also removablely on the free end in the oblique chamber of said cartridge filter is provided with obstruction.

Further improvedly be: also comprise spring, said spring housing is located on the periphery of said guide holder in the valve body, and the one of which end resists on valve gap, and the other end resists on flap.

Through adopting the aforementioned techniques scheme; The beneficial effect of the utility model is: this novel filter check valve; Said valve body is positioned at the also removable cartridge filter that is equipped with in the place ahead of valve port; Cartridge filter can Direct Filtration fall the impurity in the water, has solved to have impurity in the water, influences the technical barrier of hot-water heating facility proper functioning; Cartridge filter is connected with valve body is dismantled and assembled, makes cartridge filter dismounting convenience for washing; Cartridge filter is directly installed in the valve body, and it is simple in structure, cost is low, need not to install respectively, has reduced the junction point of pipeline, has reduced the installation and the maintenance cost of drainage system, and installation, maintenance is convenient, and is time saving and energy saving, brings convenience to the workmen.

Description of drawings

Fig. 1 is the utility model example structure schematic representation.

Embodiment

Combine accompanying drawing and specific embodiment that the utility model is further specified at present.

With reference to figure 1, present embodiment discloses a kind of filter check valve, comprises valve body 1, valve gap 2, flap 3, valve rod 4 and cartridge filter 5; Said valve body 1 is provided with water intake 11 and water outlet 12 vertically, and said valve body 1 is provided with valve seat 13 between water intake 11 and water outlet 12, has the valve port 131 that connects water intake 11 and water outlet 12 on the said valve seat 13; Said valve gap 2 is located at the top of valve body 1 the above valve seat 13; But on the valve port of being located at valve seat 13 131 of said flap 3 through the pressure folding of medium fluid, said valve gap 2 bottoms are provided with guide holder 21, and an end of said valve rod 4 is telescopic to be located in the guide holder 21 of valve gap 2; The other end is fixedly connected with flap 3; The bottom that said valve body 1 is positioned at valve seat 13 valve ports 131 is outward extended with the oblique chamber 14 of cartridge filter that connects entery and delivery port, said cartridge filter 5 removable being installed in the oblique chamber 14 of cartridge filter, and cartridge filter can Direct Filtration fall the impurity in the water; Solved and had impurity in the water; Influence the technical barrier of hot-water heating facility proper functioning, also removable being provided with stops up 6 on the free end in said cartridge filter 5 oblique chambeies, stops up to make cartridge filter dismounting convenience for washing; This novel filter check valve, its cartridge filter is directly installed in the valve body, and is simple in structure, cost is low; Need not to install respectively, reduced the junction point of pipeline, reduced the installation and the maintenance cost of drainage system; Installation, maintenance is convenient, and is time saving and energy saving, brings convenience to the workmen.

Also comprise spring 7, said spring 7 is sheathed on the periphery of said guide holder 21 in the valve body 1, and the one of which end resists on valve gap 2, and the other end resists on flap 3.When the pressure of water intake in the valve body during greater than the pressure of water outlet, pressure medium can be washed pressure that flap overcomes spring open and valve rod moved upward pass through smoothly, and spring can be alleviated the instantaneous pressure of water intake; Play a part to regulate current, have energy-conservation effect, when the flow of fluid changes; The pressure of the telescopic variation available buffer fluid of spring makes media flow constant, has quiet effect; When water outlet pressure during greater than water intake pressure, compressed spring return, the elastic force of spring return and the pressure of adverse current act on flap simultaneously; Make fast downwards throttle down of flap, prevent the water hammer and the pneumatic hammer that produce because of adverse current, can protect the safety of pipe-line system; Prolong the working life of valve body, the pressure of water outlet hour in valve body can not produce leakage phenomenon yet.

The above record is merely the embodiment who utilizes this origination techniques content, anyly is familiar with modification, the variation that this creation of this art utilization is done, and all belongs to the claim of this creation opinion, and is not limited to embodiment announcement person.

Claims

1. a filter check valve comprises valve body, valve gap, flap and valve rod, and said valve body is provided with water intake and water outlet vertically; Said valve body is provided with valve seat between water intake and water outlet; Have the valve port that connects water intake and water outlet on the said valve seat, said valve gap is located at the top of the above valve seat of valve body, but on the valve port of being located at valve seat of said flap through the pressure folding of medium fluid; Said bonnet lower is provided with guide holder; One end of said valve rod is telescopic to be located in the guide holder of valve gap, and the other end is fixedly connected with flap, it is characterized in that: said valve body is positioned at the also removable cartridge filter that is equipped with in the place ahead of valve port.

2. filter check valve according to claim 1; It is characterized in that: the bottom that said valve body is positioned at the valve seat valve port is outward extended with the oblique chamber of cartridge filter that connects entery and delivery port; Said cartridge filter is removable to be installed in the oblique chamber of cartridge filter, also removablely on the free end in the oblique chamber of said cartridge filter is provided with obstruction.

3. filter check valve according to claim 1 is characterized in that: also comprise spring, said spring housing is located on the periphery of said guide holder in the valve body, and the one of which end resists on valve gap, and the other end resists on flap.