CN202597878U

CN202597878U - Encrypted backflow-preventing gauge rear valve

Info

Publication number: CN202597878U
Application number: CN 201220178781
Authority: CN
Inventors: 陈建华; 郑开省; 陈世伟; 郑盛丰
Original assignee: FUJIAN OCEAN COPPER Co Ltd
Current assignee: FUJIAN HAIYANG VALVE TECHNOLOGY CO., LTD.
Priority date: 2012-04-24
Filing date: 2012-04-24
Publication date: 2012-12-12
Anticipated expiration: 2022-04-24

Abstract

The utility model relates to a fluid control valve, and provides an encrypted backflow-preventing gauge rear valve which is simple in structure, low in cost and convenient to install, has a magnetic sensing locking function and integrates a gate valve and a check valve, and the encrypted backflow-preventing gauge rear valve comprises a valve body, a valve cover, a gate plate and a valve rod, wherein the valve cover is arranged above the valve body, the valve body is provided with a water inlet and a water outlet along the axial direction part, the gate plate is ascendably arranged between the water inlet and the water outlet, one end of the valve rod penetrates the valve cover to be connected with the gate plate, and the encrypted backflow-preventing gauge rear valve also comprises a lock cover, wherein a cavity of the water inlet of the valve body is integrally connected with a check valve, the lock cover is sleeved on the valve cover in a rotating way and fixedly connected with the valve rod through a plugging pin, a magnetic locking device is arranged between the lock cover and the valve cover, and the lock cover is also movably connected with a magnetic lock opening device for unlocking the magnetic locking device.

Description

Valve behind a kind of encryption anti-back flow table

Technical field

The utility model relates to a kind of fluid control valve, valve behind particularly a kind of encryption anti-back flow table.

Background technique

At present, small towns, city tap-water user are equipped with water meter usually in order to measure its water consumption on tap water pipe line; For the ease of water utility's management, prevent that tap water from leaking the loss that causes water resources, at user's water meter rear the gate valve that dams is installed also usually, as regulating and the cut-off device use.

Known gate valve mainly comprises valve body, valve gap, valve plate, valve rod and opening device, and said valve gap is located at the valve body top, and said valve body upper edge axial component is provided with water intake and water outlet; Said valve plate is located between water intake and the water outlet, and said valve rod one end passes valve gap and is connected with valve plate, in order to guarantee the sealing of gate valve; Usually between valve rod and valve gap, be provided with the filler that seals, said opening device is located on the free end of valve rod, during work; The keying that utilizes the up-down of flashboard to come control valve, thus realize switching on or off of pipeline medium, influence the metering of user's water meter usually for the refluence that prevents medium; Management to water resources causes confusion, and in the water inlet of gate valve body safety check is installed also generally, and known its opening device of gate valve (rotation handgrip) that dams is directly arranged on the valve body; Do not have and establish protective gear, in use can't open and close operation to it and limit, any people that can touch gate valve can arbitrarily open or close; Be prone to be destroyed and open steathily, be not easy to water utility's management, strengthened the difficulty of public utilities and community's property management; And the safety check of above-mentioned gate valve and gate valve body are the split setting, install loaded down with trivial detailsly, and waste of material is big; Increased the slot that pipeline connects, made troubles to the workmen.

Summary of the invention

To the problems referred to above, the utility model propose a kind of simple in structure, cost is low, easy for installation, have Magnetic Induction locking function, gate valve and safety check concentrate and be valve behind the encryption anti-back flow table of one.

For solving this technical problem, the utility model is taked following scheme: valve behind a kind of encryption anti-back flow table comprises valve body, valve gap, flashboard, valve rod and opening device; Said valve gap is located at valve body top, and said valve body upper edge axial component is provided with water intake and water outlet, and what said flashboard can upper and lower up-down is located between water intake and the water outlet; Said valve rod one end passes valve gap and is connected with flashboard; Said opening device is located on the free end of valve rod, also comprises locking closure, and one is connected with safety check on the cavity of the water intake of said valve body; Said locking closure is rotating to be sheathed on the valve gap; And be fixedly connected with valve rod through latch, be provided with magnetic lock device between said locking closure and the valve gap, also be connected with the magnetic lock opening device of a releasing magnetic lock device on the said locking closure.

Further improvedly be: said magnetic lock device comprises upper and lower magnet steel; Offer down lockhole on the said valve gap; Said locking closure and valve gap contacted that the one side with valve gap under the corresponding position of lockhole be provided with lockhole; Said lower magnetic steel through spring can upper and lower slip be located between the upper and lower lockhole, said magnetic lock opening device and the corresponding position of upper and lower lockhole be provided with upper and lower lockhole in the identical upper magnetic steel of lower magnetic steel magnetic.

Further improvedly be: flexibly connect a union nut through back-up ring on the axial free-ended periphery wall of said valve body water outlet, the free end of said union nut is provided with internal thread or the outside thread that is connected with pipeline.

Further improvedly be: said magnetic lock opening device is handwheel or handle.

Through adopting the aforementioned techniques scheme, the beneficial effect of the utility model is: valve behind this novel encryption anti-back flow table, and one is connected with safety check on the water intake of its valve body; Safety check and gate valve united two into one is combined as unidirectional gate valve, and simple in structure, cost is low; Easy to install; The utility model is installed on the pipeline of tap water before the water meter, not only can controls the break-make of tap water, can also prevent the refluence of tap water; Avoid the existing technology tap water to flow backwards and caused the inaccurate defective of water meter measurement, made things convenient for the management of water resources; And valve behind this novel encryption anti-back flow table, said locking closure is rotating to be sheathed on the valve gap, and is fixedly connected with valve rod through latch; Be provided with magnetic lock device between said locking closure and the valve gap; Also be connected with the magnetic lock opening device of a releasing magnetic lock device on the said locking closure, the administrative staff of water utility can realize the locking to shutoff valve through the control to the magnetic lock opening device, have protected the open and close structure of valve body; Has the function that the restriction shutoff valve opens and closes operation; Guarantee the keying of personal management's ball valve, be convenient to public utilities and community's property management, make the allotment and planned the carrying out of conveying of the energy; Practiced thrift the cost of use and the energy, can prevent effectively that the user from stealing water.

Description of drawings

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

The structure for amplifying schematic representation of Fig. 2 the utility model safety check.

Embodiment

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

With reference to figure 1; Present embodiment discloses valve behind a kind of encryption anti-back flow table, comprises valve body 1, valve gap 2, flashboard 3, valve rod 4, and said valve gap 2 is located at valve body 1 top; Said valve body 1 upper edge axial component is provided with water intake 11 and water outlet 12; Said flashboard 3 can upper and lower up-down be located between water intake 11 and the water outlet 12, said valve rod 4 one ends pass valve gap 2 and are connected with flashboard 3, one is connected with safety check 7 on water outlet 12 cavitys of said valve body 1; Also comprise locking closure 8; Said locking closure 8 rotating being sheathed on the valve gap 2, and be fixedly connected with valve rod 4 through latch 6, magnetic lock device be provided with between said locking closure 8 and the valve gap 2; Also be connected with the magnetic lock opening device 5 of a releasing magnetic lock device on the said locking closure 8; Said magnetic lock device comprises upper magnetic steel 51 and lower magnetic steel 91, along the circumferential direction is uniformly distributed with on the said valve gap 2 to offer 3 following lockholes 21, be uniformly distributed with on said locking closure 8 and valve gap 2 contacted those circumferential surfacies and 3 the following lockhole 21 corresponding positions offer 3 on lockholes 81; Said lower magnetic steel 91 through spring 92 can upper and lower slip be located between each upper and lower lockhole, be respectively equipped with on said magnetic lock opening device 5 and each corresponding position of upper and lower lockhole with upper and lower lockhole in the identical upper magnetic steel 51 of lower magnetic steel 91 magnetic.

When needing Open valve, the magnetic lock opening device of carrying is sheathed on locking closure top, because of the magnetic pole of the lower magnetic steel between the upper magnetic steel in the magnetic lock opening device and valve gap and the locking closure is a homopolarity; Under the effect that the magnetic homopolarity repels mutually, lower magnetic steel produces in the following lockhole of the complete retraction valve gap of pressure spring, makes locking closure to rotate with the turn of magnetic lock opening device; Then driving the valve rod rotation makes flashboard do the oscilaltion campaign; Realize the open and close of valve body, administrative staff can realize the locking to shutoff valve through the control to the magnetic lock opening device, have protected the open and close structure of valve body; Has the function that the restriction shutoff valve opens and closes operation; Guarantee the keying of personal management's shutoff valve, be convenient to public utilities and community's property management, make the allotment and planned the carrying out of conveying of the energy; Practiced thrift the cost of use and the energy, can prevent effectively that the user from stealing water.

Like Fig. 2, said safety check comprises that sidewall has the supporting base 71 of a plurality of water outlet through holes, end cap 72, guide rod 73, flap 74 and Returnning spring 75, and said end cap 2 revolves on the feed-water end of being located at supporting base 1; The side direction feed-water end b direction that said supporting base 1 is positioned at waterexit end a is extended with protruding flap bearing 76, has pilot hole on the said flap bearing 76, said guide rod 73 telescopic being located in the pilot hole; Said flap 74 is fixedly arranged on guide rod 73 that end away from waterexit end b, and with guide rod 73 one-body molded making, said end cap 72 is provided with into water valve port 721; But on the water inlet valve port 721 of end cap 72, said Returnning spring 75 is sheathed on the periphery of flap bearing 76 said flap 74 away from the resistance of that end folding of guide rod 73, and the one of which end resists on flap 74 and that end face that guide rod 73 is connected; Said flap 74 is extended with the retaining edge 741 of fixed reset spring 5 usefulness downwards near the periphery of Returnning spring 75 those ends; The effect of fixed reset spring 75 is played on retaining edge 741, prevents the Returnning spring skew, and Returnning spring mainly plays support guide bar and flap; Make and form opening and closing between the water inlet valve port of flap and valve gap on the guide rod and be dynamically connected; Make the guide rod can be along the pilot hole axial motion, when pipeline was connected, the pressure that the pressure of fluid overcomes Returnning spring be washed the sealing surface disengaging that flap and guide rod make flap and valve gap import valve port open; Realize one-directional fluid flow; When pipeline turn-offed, guide rod is return under the effect of Returnning spring then, drove flap and was fitted in closely on the water inlet valve port of valve gap; Realize the function of non-return, prevent the refluence of medium.

Flexibly connect a union nut 14 through back-up ring 13 on the axial free end periphery wall of said valve body 1 water outlet 12; The free end of said union nut 14 is provided with internal thread or the outside thread that is connected with pipeline; When installing, changing and keep in repair unidirectional gate valve, need not 360 degree and repeat to rotate unidirectional gate valve, only need tighten or unscrew union nut just can easily accomplish installation or removal; Do not receive the few restriction in wall gap; Installation, maintenance is convenient, flexible, time saving and energy saving, brings convenience for production and workmen work.

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. encrypt valve behind the anti-back flow table for one kind, comprise valve body, valve gap, flashboard, valve rod, said valve gap is located at the valve body top; Said valve body upper edge axial component is provided with water intake and water outlet, and what said flashboard can upper and lower up-down is located between water intake and the water outlet, and said valve rod one end passes valve gap and is connected with flashboard; It is characterized in that: also comprise locking closure; One is connected with safety check on the cavity of the water intake of said valve body, and said locking closure is rotating to be sheathed on the valve gap, and is fixedly connected with valve rod through latch; Be provided with magnetic lock device between said locking closure and the valve gap, also be connected with the magnetic lock opening device of a releasing magnetic lock device on the said locking closure.

2. valve behind the encryption anti-back flow table according to claim 1; It is characterized in that: said magnetic lock device comprises upper and lower magnet steel; Offer down lockhole on the said valve gap; Said locking closure and valve gap contacted that the one side with valve gap under the corresponding position of lockhole be provided with lockhole; Said lower magnetic steel through spring can upper and lower slip be located between the upper and lower lockhole, said magnetic lock opening device and the corresponding position of upper and lower lockhole be provided with upper and lower lockhole in the identical upper magnetic steel of lower magnetic steel magnetic.

3. valve behind the encryption anti-back flow table according to claim 1 and 2; It is characterized in that: flexibly connect a union nut through back-up ring on the axial free-ended periphery wall of said valve body water outlet, the free end of said union nut is provided with internal thread or the outside thread that is connected with pipeline.

4. want valve behind the 1 or 2 said encryption anti-back flow tables according to right, it is characterized in that: said magnetic lock opening device is handwheel or handle.