CN206386500U - A kind of needle valve - Google Patents
A kind of needle valve Download PDFInfo
- Publication number
- CN206386500U CN206386500U CN201621472964.7U CN201621472964U CN206386500U CN 206386500 U CN206386500 U CN 206386500U CN 201621472964 U CN201621472964 U CN 201621472964U CN 206386500 U CN206386500 U CN 206386500U
- Authority
- CN
- China
- Prior art keywords
- valve
- control hole
- hole
- passage
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model discloses a kind of needle valve, including valve body and valve rod, horizontal inlet opening is provided with the valve body, the fluid hole of level and the control hole of vertical direction, the inlet opening is connected by passage one with the bottom of control hole, the valve rod is arranged in control hole, internal thread is provided with the middle part of the control hole, the valve rod outer wall is provided with screw thread, the valve rod is threadedly coupled with control hole, the valve rod upper end is stretched out valve body and is fixedly connected with the hand wheel, lower end is provided with coniform valve element, the valve seat for coordinating with valve element and control hole being blocked to closing is additionally provided with the control hole, the valve seat is bell mouth shape, and can be fitted completely with coniform valve element, the side of the valve seat is fixedly installed elastic packing packing ring, the fluid hole is connected with the control hole on valve seat top by passage two, the utility model is rational in infrastructure, good airproof performance and wear and tear it is small.
Description
Technical field
The utility model is related to valve technology field, more particularly to a kind of needle valve.
Background technology
According to the difference of valve element, valve can be divided into stop valve, gate valve, ball valve, butterfly valve, needle valve etc., needle valve
Bigger pressure, good seal performance are resistant to compared to other kinds of valve, so being generally used for compared with low discharge, elevated pressures
Gas or liquid medium sealing, can also accurately adjust, it is widely used.
Because needle valve needs valve element being tightly against on valve seat when closed, and the valve seat of current most of needle valve is all
To be step-like, therefore valve element easily weares and teares with valve seat in use, reduces the sealing of valve, shortens making for valve
Use the life-span.
Utility model content
It is rational in infrastructure the utility model discloses a kind of needle valve to solve the above problems, good airproof performance and abrasion
It is small.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：
A kind of needle valve, including valve body and valve rod, it is characterised in that：Horizontal inlet opening, water are provided with the valve body
Flat fluid hole and the control hole of vertical direction, the inlet opening are connected by passage one with the bottom of control hole, described
Valve rod is arranged in control hole, and internal thread is provided with the middle part of the control hole, and the valve rod outer wall is provided with screw thread, the valve rod and control
Drilling is threadedly coupled, and the valve rod upper end is stretched out valve body and is fixedly connected with the hand wheel, and lower end is provided with coniform valve element, the control
Be additionally provided with drilling with valve element coordinate by control hole block closing valve seat, the valve seat be bell mouth shape, and with it is coniform
Valve element can fit completely, and the side of the valve seat is fixedly installed elastic packing packing ring, the fluid hole and the control on valve seat top
Drilling is connected by passage two.
As a kind of improvement of the present utility model, the valve body upper end is provided with the bonnet for closing valve body.
As a kind of improvement of the present utility model, the hole heart line of the inlet opening and fluid hole is parallel to each other.
As a kind of improvement of the present utility model, the axis of the passage one and the angle of inclination of horizontal plane are 5-10 °,
The axis of the passage two and the angle of inclination of horizontal plane are 10-15 °.
As a kind of improvement of the present utility model, the fluid hole is connected with flowmeter.
The beneficial effects of the utility model：
The needle valve that the utility model is provided is rational in infrastructure, the bell mouth shape that valve seat is arranged to fit completely with valve element,
The effectively abrasion during reduction use between valve element and valve seat；Elastic packing packing ring is provided with the side of valve seat, is improved
While valve tightness, it is also prevented from because temperature change is big and produces the locking phenomenon between valve element and valve seat；Will be logical
Road one and passage two are all provided with being set to incline structure, and passage two is arranged on into the top of passage one, are prevented due to closing valve not
The leakage produced in time, improves the accuracy of needle valve；The connection flow gauge at fluid hole, can carry out fluid flow
Statistics, at the same time it can also check whether that liquid is revealed when closing valve, pinpoints the problems in time.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Reference numerals list：
1st, valve body, 2, valve rod, 3, inlet opening, 4, fluid hole, 5, control hole, 6, passage one, 7, handwheel, 8, valve element, 9, valve
Seat, 10, elastic washer, 11, passage two, 12, bonnet, 13, flowmeter.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is further elucidated, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limits scope of the present utility model.
As illustrated, a kind of needle valve, including valve body 1 and valve rod 2, it is characterised in that：Level is provided with the valve body 1
Inlet opening 3, the control hole 5 of the fluid hole 4 of level and vertical direction, the inlet opening 3 passes through passage 1 and control hole 5
Bottom be connected, the valve rod 2 is arranged in control hole 5, and the middle part of the control hole 5 is provided with internal thread, the outer wall of valve rod 2
Provided with screw thread, the valve rod 2 is threadedly coupled with control hole 5, and the upper end of valve rod 2 is stretched out valve body 1 and is fixedly connected with handwheel 7,
Lower end is provided with coniform valve element 8, the control hole 5 and is additionally provided with the valve seat for coordinating with valve element 8 and control hole 5 being blocked to closing
9, the valve seat 9 is bell mouth shape, and can be fitted completely with coniform valve element 8, and the side of the valve seat 9 is fixedly installed flexible
Seal washer 10, the fluid hole 4 is connected with the control hole 5 on the top of valve seat 9 by passage 2 11.
In the course of work of utility model, when needing Open valve, turn clockwise handwheel 7, and band ovable valve stem 2 is in valve body
Turned clockwise in 1, valve rod 2 is carried out spiral helicine upward motion so that the also motion upwards therewith of valve element 8, lift off a seat 9,
So as to conductive channel 2 11, needle valve is opened, and liquid flows into control hole 5 from inlet opening 3 by passage one, is then flowed by passage 2 11
Enter fluid hole 4, flowmeter 13 can be counted to fluid flow；When needing to close valve, handwheel 7, band are rotated counterclockwise
The rotate counterclockwise in valve body 1 of ovable valve stem 2, makes valve rod 2 carry out spiral helicine move downward so that valve element 8 is also transported downwards therewith
It is dynamic, valve element 8 is fitted completely with valve seat 9, closed so that passage 2 11 be blocked, needle valve is closed, closed when needle valve is in
During, flowmeter 13 can be monitored to fluid hole 4, as flowmeter shows fluid flow, then it represents that let out
Dew to needle valve, it is necessary to place under repair or change.
The upper end of valve body 1 described in the utility model is provided with the bonnet 12 for closing valve body 1.
The hole heart line of inlet opening 3 and fluid hole 4 described in the utility model is parallel to each other.
The axis of passage 1 described in the utility model and the angle of inclination of horizontal plane are 5-10 °, described passage two
11 axis and the angle of inclination of horizontal plane are 10-15 °, can be prevented due to closing the leakage that valve is produced not in time,
Improve the accuracy of needle valve.
Fluid hole described in the utility model is connected with flowmeter 13, can carry out the statistics of fluid flow, meanwhile, may be used also
To have checked whether that liquid is revealed when closing valve, pinpoint the problems in time.
Above-described embodiment is only optimal technical scheme of the present utility model, and is not construed as limit of the present utility model
The technical scheme that system, the technical scheme that protection domain of the present utility model should be recorded with claim, including claim are recorded
The equivalents of middle technical characteristic are protection domain, i.e., equivalent substitution within this range is improved, also in the utility model
Protection domain within.
Claims (5)
1. a kind of needle valve, including valve body（1）And valve rod（2）, it is characterised in that：The valve body（1）In be provided with horizontal to enter
Fluid apertures（3）, level fluid hole（4）And the control hole of vertical direction（5）, the inlet opening（3）Pass through passage one（6）With control
Drilling（5）Bottom be connected, the valve rod（2）It is arranged on control hole（5）It is interior, the control hole（5）Middle part is provided with internal thread,
The valve rod（2）Outer wall is provided with screw thread, the valve rod（2）With control hole（5）Threaded connection, the valve rod（2）Valve is stretched out in upper end
Body（1）And and handwheel（7）It is fixedly connected, lower end is provided with coniform valve element（8）, the control hole（5）Inside it is additionally provided with and valve
Core（8）Coordinate control hole（5）Block the valve seat of closing（9）, the valve seat（9）For bell mouth shape, and with coniform valve element（8）
It can fit completely, the valve seat（9）Side be fixedly installed elastic packing packing ring（10）, the fluid hole（4）With valve seat（9）
The control hole on top（5）Pass through passage two（11）It is connected.
2. a kind of needle valve according to claim 1, it is characterised in that：The valve body（1）Upper end is provided with valve body（1）
The bonnet of closing（12）.
3. a kind of needle valve according to claim 2, it is characterised in that：The inlet opening（3）And fluid hole（4）The hole heart
Line is parallel to each other.
4. a kind of needle valve according to claim 3, it is characterised in that：The passage one（6）Axis and horizontal plane
Angle of inclination be 5-10 °, the passage two（11）Axis and horizontal plane angle of inclination be 10-15 °.
5. a kind of needle valve according to claim 4, it is characterised in that：The fluid hole（4）It is connected with flowmeter（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621472964.7U CN206386500U (en) | 2016-12-30 | 2016-12-30 | A kind of needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621472964.7U CN206386500U (en) | 2016-12-30 | 2016-12-30 | A kind of needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386500U true CN206386500U (en) | 2017-08-08 |
Family
ID=59491559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621472964.7U Expired - Fee Related CN206386500U (en) | 2016-12-30 | 2016-12-30 | A kind of needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386500U (en) |
-
2016
- 2016-12-30 CN CN201621472964.7U patent/CN206386500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20191230 |