CN208871097U - A kind of Tiny Drag Slow Shut Check Valves - Google Patents

Abstract

The utility model discloses a kind of Tiny Drag Slow Shut Check Valves, including valve body, the body base is equipped with water inlet, flanged joint has water inlet pipe below the water inlet, water outlet is equipped on the right side of the valve body, the water outlet and outlet pipe flanged joint, the body top has been bolted valve top, valve deck is installed above the valve top, valve top inside top is fixedly connected with top plate, the top plate bottom is fixedly connected with spring, the spring bottom end is fixedly connected with spool, spare bar is fixedly connected on the left of the spool, the upper end of the spare bar passes through top plate and valve top and is equipped with handle, gasket is installed with valve apical grafting synapsis at the top of the spare bar, fulcrum is welded at the top of valve top on the right side of the spare bar, the Tiny Drag Slow Shut Check Valves, easily spool can be jacked up when the water of spool bottom, in spool closure, no Biggish impact force can be generated, is damaged so as to cause the sealing surface of spool because of frequent impact.

Description

A kind of Tiny Drag Slow Shut Check Valves

Technical field

The utility model belongs to valve technology field, and in particular to a kind of Tiny Drag Slow Shut Check Valves.

Background technique

Check-valves refers to be flowed and automatic open and close flap by medium itself, for the valve for preventing medium from flowing backwards, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and main function is to prevent medium from falling It flows, prevent pump and drive motor reversion and vessel media from releasing.It can also be used to be raised above to pressure therein The auxiliary system of system pressure is provided on the pipeline of supply.Check-valves can be divided mainly into swing check valve (being rotated according to center of gravity) with Lift check valve (moves) along axis.Usual this valve is automatic work, and the Fluid pressure flowed in one direction is made Under, flap is opened；When fluid opposite direction flowing, valve seat is acted on by the flap that is overlapped certainly of Fluid pressure and flap, to cut Cutout is dynamic.

Existing check-valves, all can be to biggish impact force be generated, so as to cause the sealing of spool when spool is closed every time Face is damaged because of frequent impact, causes valve leak.

Utility model content

The purpose of this utility model is to provide a kind of Tiny Drag Slow Shut Check Valves, mentioned above in the background art to solve Problem.

To achieve the above object, the utility model provides the following technical solutions: a kind of Tiny Drag Slow Shut Check Valves, including valve Body, the body base are equipped with water inlet, and flanged joint has water inlet pipe below the water inlet, are equipped with water outlet on the right side of the valve body Mouthful, the water outlet and outlet pipe flanged joint, the body top have been bolted valve top, are equipped with valve above the valve top Lid, valve top inside top are fixedly connected with top plate, and the top plate bottom is fixedly connected with spring, the spring bottom end and valve Core is fixedly connected, and spare bar is fixedly connected on the left of the spool, and the upper end of the spare bar passes through top plate and valve top and installs There is handle, the spare bar top is equipped with gasket with valve apical grafting synapsis, is welded at the top of the valve top on the right side of the spare bar Fulcrum.

Preferably, valve inner lower horizontal part is equipped with cushion, and the cushion is rubber material.

Preferably, the spring is pulled down by spool extremely prescribes a time limit, and spool bottom left is just fallen on cushion.

Preferably, sealing shroud is enclosed on the outside of the spool, the spool bottom is equipped with groove, and the groove is hemisphere Type.

Preferably, for the spool on the right side of valve inner, spool left side area is about bigger by two than water outlet open area / mono-.

The technical effect and advantage of the utility model: the Tiny Drag Slow Shut Check Valves, the spring of installation is by spool in gravity weight It is extremely prescribed a time limit with pulling down, spool bottom left is just fallen on cushion, is blocked water outlet on the left of such spool, is played Anti-backflow effect, when spool bottom water, can easily jack up spool, then flow out from water outlet, the spare bar of installation In spring failure, spool can be lifted with squeeze grip, not influence temporarily to use, work on, in spool closure, because of bullet The elastic limit of spring can only make spool reach exactly to valve inner bottom end, so biggish impact force will not be generated, so as to cause The sealing surface of spool is damaged because of frequent impact.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the valve core structure schematic diagram of the utility model.

In figure: 1 handle, 2 gaskets, 3 top plates, 4 spare bars, 5 cushions, 6 water inlets, 7 water inlet pipes, 8 spools, 81 sealings Set, 82 grooves, 9 outlet pipes, 10 water outlets, 11 springs, 12 valve bodies, 13 valve tops, 14 valve decks, 15 fulcrums.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, structural schematic diagram of the Fig. 1 for the utility model, a kind of Tiny Drag Slow Shut Check Valves, including valve body 12, 12 bottom of valve body is equipped with water inlet 6, and the 6 lower section flanged joint of water inlet has water inlet pipe 7, sets on the right side of the valve body 12 There are water outlet 10, the water outlet 10 and 9 flanged joint of outlet pipe, 12 top bolt of valve body is connected with valve top 13, described Valve deck 14 is installed, 13 inside top of valve top is fixedly connected with top plate 3, and 3 bottom of top plate is fixed to be connected above valve top 13 It is connected to spring 11,11 bottom end of spring is fixedly connected with spool 8, and the 12 inner bottom horizontal component of valve body is equipped with buffering Pad 5, the cushion 5 is rubber material, then plays buffer function when the whereabouts of spool 8, and the spring 11 is pulled down by spool 8 It extremely prescribes a time limit, 8 bottom left of spool is just fallen on cushion 5, and at this moment 8 left side of spool will be blocked at water outlet 10, is played Anti-backflow acts on, and spare bar 4 is fixedly connected on the left of the spool 8, and the upper end of the spare bar 4 passes through top plate 3 and valve top 13 and handle 1 is installed, spare 4 top of bar is equipped with gasket 2 with 13 contact position of valve top, prevents leak, described spare It is welded with fulcrum 15 at the top of the valve top 13 on 4 right side of bar, it, can under squeeze grip 1, then the support of fulcrum 15 in 11 failure of spring To lift spool 8, work is not influenced.

Referring to Fig. 2, Fig. 2 is the valve core structure schematic diagram of the utility model, sealing shroud is enclosed on the outside of the spool 8 81, the oxidation and corrosion of spool 8 are reduced, 8 bottom of spool is equipped with groove 82, and the groove 82 is dome-type, the spool 8 Against 12 inner right side of valve body, 8 left side area of the spool half about bigger than 10 area of water outlet.

Working principle: when the check-valves bottom no liquid rises, spool 8 will be blocked at water outlet 10 prevents liquid from flowing backwards, When the check-valves works, water flow, which jacks up spool 8, to be entered in valve body 12, is then flowed out from water outlet, when stopping working When, spool 8 just drops down above water inlet 7 under the action of 11 dual power of gravity and spring, by water inlet 7 and water outlet 10 Block, when 11 failure of spring, open the valve deck 14 of top, squeeze grip 1 can lift spool 8, make the check-valves after Continuous work, repairs again after power cut-off.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of Tiny Drag Slow Shut Check Valves, including valve body (12), it is characterised in that: valve body (12) bottom is equipped with water inlet (6), there is water inlet pipe (7) flanged joint below the water inlet (6), is equipped with water outlet (10) on the right side of the valve body (12), described Water outlet (10) and outlet pipe (9) flanged joint, valve body (12) top bolt are connected with valve top (13), the valve top (13) Top is equipped with valve deck (14), and valve top (13) inside top is fixedly connected with top plate (3), and top plate (3) bottom is fixed It is connected with spring (11), spring (11) bottom end is fixedly connected with spool (8), is fixedly connected on the left of the spool (8) standby With bar (4), the upper end of the spare bar (4) passes through top plate (3) and valve top (13) and is equipped with handle (1), the spare bar (4) Top and valve top (13) contact position are equipped with gasket (2), are welded with fulcrum at the top of the valve top (13) on the right side of the spare bar (4) (15)。

2. a kind of Tiny Drag Slow Shut Check Valves according to claim 1, it is characterised in that: valve body (12) the inner bottom water Flat part is equipped with cushion (5), and the cushion (5) is rubber material.

3. a kind of Tiny Drag Slow Shut Check Valves according to claim 2, it is characterised in that: the spring (11) is by spool (8) It pulls down and extremely prescribes a time limit, spool (8) bottom left is just fallen on cushion (5).

4. a kind of Tiny Drag Slow Shut Check Valves according to claim 1, it is characterised in that: be enclosed on the outside of the spool (8) Sealing shroud (81), spool (8) bottom are equipped with groove (82), and the groove (82) is dome-type.

5. a kind of Tiny Drag Slow Shut Check Valves according to claim 1, it is characterised in that: the spool (8) abuts valve body (12) inner right side, spool (8) left side area half about bigger than water outlet (10) area.