CN207848426U - A kind of hydraulic drive two way seal the needle valve - Google Patents
A kind of hydraulic drive two way seal the needle valve Download PDFInfo
- Publication number
- CN207848426U CN207848426U CN201820104765.3U CN201820104765U CN207848426U CN 207848426 U CN207848426 U CN 207848426U CN 201820104765 U CN201820104765 U CN 201820104765U CN 207848426 U CN207848426 U CN 207848426U
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- piston formula
- formula spool
- piston
- spherical crown
- spool
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Abstract
The utility model provides a kind of hydraulic drive two way seal the needle valve, including valve body, left piston formula spool, right piston formula spool, left piston formula spool, right piston formula spool are symmetrical arranged, left spherical crown and right spherical crown are cast in valve body, left spherical crown and right spherical crown are symmetrical arranged, for left piston formula spool with left spherical crown with left adjusting sealing pair is combined into, right piston formula spool is matched with right spherical crown is combined into right adjusting sealing pair；Handwheel connects leading screw by square hole, leading screw is connect by feed screw nut with valve body, leading screw is pumped by upper and lower two slide thrust bearings and plunger lock nut band piston, it can be relatively rotated between piston and leading screw, piston motion drives hydraulic medium along the reciprocal driving space of hydraulic fluid passage discrepancy left piston formula spool and right piston formula spool, hydraulic medium flowing driving left piston formula spool and the movement of right piston formula spool synchronous reciprocating.Valve described in the utility model can realize two way seal, the function of bidirectional modulation.
Description
Technical field
The utility model belongs to hydraulic drive valve field, more particularly, to a kind of hydraulic drive two way seal current-regulating voltage-regulating
Valve.
Background technology
Existing the needle valve generally use one-way sealing regulating mechanism, installation need stringent direction to require, medium
Pressure change bad adaptability.
Invention content
In view of this, the utility model is directed to a kind of hydraulic drive two way seal the needle valve, it is existing to solve
The problem of installation of one-way sealing the needle valve needs stringent direction to require, and pressure medium changes bad adaptability.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of hydraulic drive two way seal the needle valve, including valve body, left piston formula spool, right piston formula spool, it is left
Piston valve core, right piston formula spool are symmetrical arranged, and left spherical crown and right spherical crown are cast in valve body, left spherical crown and right spherical crown are symmetrically set
It sets, for left piston formula spool with left spherical crown with left adjusting sealing pair is combined into, right piston formula spool is close with right adjusting is combined into right spherical crown
Envelope is secondary；
Handwheel connects leading screw by square hole, and leading screw is connect by feed screw nut with valve body, and leading screw is slided by upper and lower two
Thrust bearing and plunger lock nut band piston pump, and can be relatively rotated between piston and leading screw, piston motion
Drive hydraulic medium along the reciprocal driving space of hydraulic fluid passage discrepancy left piston formula spool and right piston formula spool, hydraulic pressure is situated between
Matter flow driving left piston formula spool and the movement of right piston formula spool synchronous reciprocating.
Further, it is provided with three annular grooves at the inner hole of the leading screw and piston, O-shaped sealing is equipped in annular groove
Circle.
Further, it is equipped with three annular grooves at the neck inner cavity cooperation of the piston and valve body, is equipped in annular groove O-shaped close
Seal.
Further, the left piston formula spool is equipped with left limit circle, right piston formula valve in the end in back and forth driving space
Core is equipped with right limit circle in the end in back and forth driving space.
Further, the valve body is equipped with the silk plug of control hydraulic fluid passage opening and closing.
Further, valve body is equipped with the locking bolt of locking screw nut.
Compared with the existing technology, the needle valve described in the utility model has the advantage that：Achievable two way seal,
The function of bidirectional modulation.Valve also has the advantages that good seal performance.
Description of the drawings
The attached drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The illustrative embodiments and their description made do not constitute the improper restriction to the invention for explaining the invention.
In attached drawing：
Fig. 1 is the structural schematic diagram of the needle valve described in the utility model embodiment；
Fig. 2 is the partial schematic diagram of the needle valve described in the utility model embodiment.
Reference sign：
1- handwheels；2- leading screws；3- feed screw nuts；4- locking bolts；5- slide thrust bearings；6- pistons；7-O types seal
Circle；8- plunger lock nuts；9- silk plugs；10- valve bodies；11- right limit circles；12- right piston formula spools；The right spherical crowns of 13-；14- is left
Spherical crown；15- left limit circles；16- left piston formula spools；17- hydraulic fluid passages；18- back and forth drives space.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies to describe, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
The technical program the technical problem to be solved is that：Existing one-way sealing the needle valve installation needs stringent side
To requiring, pressure medium changes bad adaptability.
In order to solve the above-mentioned technical problem, as shown in Figure 1, present embodiments providing a kind of hydraulic drive two way seal tune stream
Pressure regulator valve, including valve body 10, left piston formula spool 16, right piston formula spool 12, left piston formula spool 16, right piston formula spool 12
It is symmetrical arranged, left spherical crown 14 and right spherical crown 13 is cast in valve body 10, left spherical crown 14 and right spherical crown 13 are symmetrical arranged, left piston formula valve
For core 16 with left spherical crown 14 with left adjusting sealing pair is combined into, right piston formula spool 12 is matched with right spherical crown 13 is combined into right adjusting sealing pair；
Handwheel 1 connects leading screw 2 by square hole, and leading screw 2 is connect by feed screw nut 3 with valve body 10, and leading screw 2 passes through upper and lower two
A slide thrust bearing 5 and plunger lock nut 8 pump with piston 6, opposite can turn between piston 6 and leading screw 2
Dynamic, the movement of piston 6 driving hydraulic medium comes in and goes out left piston formula spool 16 and right piston formula spool 12 along hydraulic fluid passage 17
Reciprocal driving space 18, hydraulic medium flowing driving left piston formula spool 16 and the movement of 12 synchronous reciprocating of right piston formula spool.
The technical solution that the embodiment is provided has the technical effect that：Two way seal, the function of bidirectional modulation can be achieved.Valve
Door also has the advantages that good seal performance.
As shown in Fig. 2, being provided with three annular grooves at the leading screw 2 and the inner hole of piston 6, it is equipped in annular groove O-shaped
Sealing ring 7.Three annular grooves are equipped at the piston 6 and the neck inner cavity cooperation of valve body 10, O-ring seal 7 is equipped in annular groove.
The left piston formula spool 16 is equipped with left limit circle 15, right piston formula spool 12 in the end in back and forth driving space 18
It is equipped with right limit circle 11 in the end in back and forth driving space 18.
The valve body 10 is equipped with the silk plug 9 that control hydraulic fluid passage 17 is opened and closed.
Valve body 10 is equipped with the locking bolt 4 of locking screw nut 3.
This hydraulic drive two way seal the needle valve can connect Vidacare corp, realize automatic regulation function.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection domain within.
Claims (6)
1. a kind of hydraulic drive two way seal the needle valve, it is characterised in that：Including valve body, left piston formula spool, right piston
Formula spool, left piston formula spool, right piston formula spool are symmetrical arranged, and left spherical crown and right spherical crown, left spherical crown and the right side are cast in valve body
Spherical crown is symmetrical arranged, and left piston formula spool coordinates with left adjusting sealing pair, right piston formula spool is combined into right spherical crown with left spherical crown
For right adjusting sealing pair；
Handwheel connects leading screw by square hole, and leading screw is connect by feed screw nut with valve body, and leading screw passes through upper and lower two slope thrusts
Bearing and plunger lock nut band piston pump, and can be relatively rotated between piston and leading screw, piston motion driving
Hydraulic medium is along the reciprocal driving space of hydraulic fluid passage discrepancy left piston formula spool and right piston formula spool, hydraulic fluid flow
Dynamic driving left piston formula spool and the movement of right piston formula spool synchronous reciprocating.
2. a kind of hydraulic drive two way seal the needle valve according to claim 1, it is characterised in that：Leading screw and piston
Inner hole at be provided with three annular grooves, be equipped with O-ring seal in annular groove.
3. a kind of hydraulic drive two way seal the needle valve according to claim 1, it is characterised in that：Piston and valve body
The cooperation of neck inner cavity at be equipped with three annular grooves, be equipped with O-ring seal in annular groove.
4. a kind of hydraulic drive two way seal the needle valve according to claim 1, it is characterised in that：Left piston formula valve
Core is equipped with left limit circle in the end in back and forth driving space, and right piston formula spool is equipped with right limit in the end in back and forth driving space
Circle.
5. a kind of hydraulic drive two way seal the needle valve according to claim 1, it is characterised in that：Valve body is equipped with
Control the silk plug of hydraulic fluid passage opening and closing.
6. a kind of hydraulic drive two way seal the needle valve according to claim 1, it is characterised in that：Valve body is equipped with
The locking bolt of locking screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820104765.3U CN207848426U (en) | 2018-01-22 | 2018-01-22 | A kind of hydraulic drive two way seal the needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820104765.3U CN207848426U (en) | 2018-01-22 | 2018-01-22 | A kind of hydraulic drive two way seal the needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848426U true CN207848426U (en) | 2018-09-11 |
Family
ID=63415825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820104765.3U Active CN207848426U (en) | 2018-01-22 | 2018-01-22 | A kind of hydraulic drive two way seal the needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167453A (en) * | 2018-01-22 | 2018-06-15 | 博纳斯威阀门股份有限公司 | A kind of hydraulic drive two way seal the needle valve |
-
2018
- 2018-01-22 CN CN201820104765.3U patent/CN207848426U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167453A (en) * | 2018-01-22 | 2018-06-15 | 博纳斯威阀门股份有限公司 | A kind of hydraulic drive two way seal the needle valve |
| CN108167453B (en) * | 2018-01-22 | 2024-04-02 | 博纳斯威阀门股份有限公司 | Hydraulic transmission bidirectional sealing flow regulating pressure regulating valve |
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