High-precision micro-flow regulating valve
Technical field
The utility model relates to the control valve technical fields of automation equipment, specially high-precision micro-flow regulating valve.
Background technique
Existing micro-flow regulating valve is mainly by valve body, spool, valve seat, valve rod, core assembly, filler, gasket etc. zero
The machining accuracy of component composition, spool and valve seat is difficult to ensure, causes the spool that thickening comes out every time, valve seat needs to repair multiple
It is just able to satisfy flow accuracy requirement, based on the above issues, it is necessary to a kind of high-precision tiny flow quantity single-seat valve is invented, to meet use
The requirement of the not offline checking maintenance such as family scene quick-replaceable.
Utility model content
The purpose of this utility model is to provide high-precision micro-flow regulating valves, have advantage convenient to overhaul, solve
Existing high-precision micro-flow regulating valve problem not easy to overhaul.
To achieve the above object, the utility model provides the following technical solutions: high-precision micro-flow regulating valve, including valve
Body, the inner cavity of the valve body are connected with valve seat set, and it is compound that the top fixation of valve seat set inner cavity is connected with graphite
Pad, the top movable of the graphite composite pad are connected with valve seat, and activity connects between the valve seat set and the inner cavity of graphite composite pad
It is connected to spool, the top movable of the valve body is connected with valve deck, and the two sides of the body top are fixedly connected to bolt, described
It is through to the top of valve deck at the top of bolt and is arranged with the first nut, core bar is fixedly connected at the top of the spool, it is described
It is through to the top of valve deck at the top of core bar and is arranged with the second nut and travel indicator respectively, the inner cavity setting of the valve deck
There is filler assembly, the inner cavity of the filler assembly is flexibly connected with core bar, is arranged with round nut at the top of the valve cover surfaces.
Preferably, the channel of the valve body is in through-type, no dead angle.
Preferably, the valve deck is connected and sealed by dentiform gasket and valve body.
Preferably, the connection type between the valve seat set, valve body is attached by pressing sleeve.
Preferably, the core bar is to realize that high-precision tiny flow quantity is adjusted by cooperating with gasket.
Preferably, the filler assembly uses V-type PTFE filling-material structure form in low temperature;At high temperature using flexible stone
Black filling-material structure form can have seven kinds of filler combinations under different operating conditions.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model passes through setting valve body, valve seat set, gasket, graphite composite pad, valve seat, core bar, pressing sleeve, tooth form
Pad, valve deck, the first nut, bolt, filler assembly, round nut, the second nut, travel indicator and spool are used cooperatively, together
When solve the problems, such as that existing high-precision micro-flow regulating valve is not easy to overhaul.
2, the utility model is adjusted water flow by setting valve body, the through-type valve body person of being convenient to use, together
When facilitate the maintenance of service personnel, by the way that dentiform gasket is arranged, makes the better tightness of valve deck Yu valve body junction, pass through setting
Pressing sleeve, the person of being convenient to use dismantle the intracorporal valve seat set of valve, by the way that gasket is arranged, make the sealing of core bar when in use
Property it is more preferable, by the way that filler assembly is arranged, the material of filler assembly determines by temperature, and when low temperature uses V-type PTFE filling-material structure shape
Formula uses flexible graphite packing structure type at high temperature, can have seven kinds of filler combinations under different operating conditions, to guarantee to adjust
Section valve normally effectively acts on.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In figure: 1 valve body, 2 valve seat sets, 3 gaskets, 4 graphite composite pads, 5 valve seats, 6 core bars, 7 pressing sleeves, 8 dentiform gaskets, 9 valves
Lid, 10 first nuts, 11 bolts, 12 filler assemblies, 13 round nuts, 14 second nuts, 15 travel indicators, 16 spools.
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, high-precision micro-flow regulating valve, including valve body 1, the inner cavity of valve body 1 are connected with valve seat set
2, the top fixation that valve seat covers 2 inner cavities is connected with graphite composite pad 4, and the top movable of graphite composite pad 4 is connected with valve seat
5, it is connected with spool 16 between valve seat set 2 and the inner cavity of graphite composite pad 4, the top movable of valve body 1 is connected with valve deck 9,
The two sides at 1 top of valve body are fixedly connected to bolt 11, and the top of bolt 11 is through to the top of valve deck 9 and is arranged with the first spiral shell
Mother 10, the top of spool 16 is fixedly connected with core bar 6, and the top of core bar 6 is through to the top of valve deck 9 and is arranged with second respectively
Nut 14 and travel indicator 15, the inner cavity of valve deck 9 are provided with filler assembly 12,6 activity of inner cavity and core bar of filler assembly 12
Connection, is arranged with round nut 13 at the top of 9 surface of valve deck, and in through-type, no dead angle, valve deck 9 passes through dentiform gasket for the channel of valve body 1
8 are connected and sealed with valve body 1, and the connection type between valve seat set 2, valve body 1 is attached by pressing sleeve 7, and core bar 6 is
Realize that high-precision tiny flow quantity is adjusted by cooperating with gasket 3, filler assembly 12 uses V-type PTFE filling-material structure in low temperature
Form;Flexible graphite packing structure type is used at high temperature, there can be seven kinds of filler combinations under different operating conditions, by setting
Valve body 1 is set, water flow is adjusted in through-type 1 person of being convenient to use of valve body, while facilitating the maintenance of service personnel, leads to
Setting dentiform gasket 8 is crossed, the better tightness of valve deck 9 Yu 1 junction of valve body is made, by the way that pressing sleeve 7 is arranged, the person of being convenient to use is to valve
Valve seat set 2 in body 1 is dismantled, and by the way that gasket 3 is arranged, is made the better tightness of core bar 6 when in use, is filled out by setting
Expect component 12, the material of filler assembly 12 determines by temperature, and when low temperature uses V-type PTFE filling-material structure form, adopts at high temperature
With flexible graphite packing structure type, there can be seven kinds of filler combinations under different operating conditions, to guarantee that regulating valve is normally effective
Effect, pass through setting valve body 1, valve seat cover 2, gasket 3, graphite composite pad 4, valve seat 5, core bar 6, pressing sleeve 7, dentiform gasket 8, valve
Lid 9, the first nut 10, bolt 11, filler assembly 12, round nut 13, the second nut 14, travel indicator 15 and spool 16 are matched
It closes and uses, while solving the problems, such as that existing high-precision micro-flow regulating valve is not easy to overhaul.
In use, user passes through the first nut 10 in regulating valve when user needs to overhaul regulating valve
Separate valve body 1 and valve deck 9 with bolt 11, user removes pressing sleeve 7 and valve seat is covered 2, gasket 3, stone at this time
Black composite pad 4 and valve seat 5 take out out of valve body 1, to carry out maintenance convenient for users to the inside to regulating valve or to part
Replacement.
In summary: the high-precision micro-flow regulating valve, it is multiple by setting valve body 1, valve seat set 2, gasket 3, graphite
Close pad 4, valve seat 5, core bar 6, pressing sleeve 7, dentiform gasket 8, valve deck 9, the first nut 10, bolt 11, filler assembly 12, round nut 13,
Second nut 14, travel indicator 15 and spool 16 are used cooperatively, and solve existing high-precision micro-flow regulating valve not
The problem of easy access.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.