CN206468889U - A kind of needle valve - Google Patents
A kind of needle valve Download PDFInfo
- Publication number
- CN206468889U CN206468889U CN201720180040.8U CN201720180040U CN206468889U CN 206468889 U CN206468889 U CN 206468889U CN 201720180040 U CN201720180040 U CN 201720180040U CN 206468889 U CN206468889 U CN 206468889U
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- CN
- China
- Prior art keywords
- valve
- ventilation
- contiguous block
- wall
- 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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Abstract
The utility model discloses a kind of needle valve of valve technology field, including valve body, locking nut is installed at the top of the valve body, the inner chamber of the locking nut is bolted with valve rod, the top outer wall of the valve rod is provided with handwheel, buffering spacer is installed between the valve body and valve rod, gasket seal is provided with the top of the buffering spacer, the inner chamber of the locking nut and the outer wall of valve rod are provided with elastic component, the inner chamber of the valve body is provided with ventilation contiguous block, the bottom of the ventilation contiguous block is connected with air intake duct, the right wall of the ventilation contiguous block is provided with gas off-take, the inner cavity top of the ventilation contiguous block is provided with packed layer, the inner chamber of the packed layer is provided with bearing, the intracavity bottom of the ventilation contiguous block is provided with air inlet port, the bottom of the valve rod is provided with valve element, with load is big and the characteristics of short stroke, it is simple in construction, it is easy to operate, stationarity and sealing are greatly improved.
Description
Technical field
The utility model is related to valve technology field, specially a kind of needle valve.
Background technology
Needle valve has easy installation and removal, corrosion-resistant, connection fastening, is conducive to fire prevention, armored cassette voltage endurance capability high, close
Sealing property is good, and the advantage of service life length is a kind of advanced company in power station, oil refining, chemical plant installations and instrument measurement pipeline
The valve of mode is connect, with developing rapidly for the industries such as steel, space flight, chemical industry, coalification and shipbuilding, gas flow is controlled to adjust
It is more and more important in the application, to using upper convenient, safe and stable property the need for greatly improve, current needle valve sealing
Poor, bearing capacity is low, and service life is short, and gas leakage easily occurs for overall needle valve, in view of it is mentioned above the problem of, this practicality is new
Type designs a kind of needle valve, the problem of to solve mentioned above.
Utility model content
The purpose of this utility model is to provide a kind of needle valve, to solve the current needle-like proposed in above-mentioned background technology
Valve sealing is poor, bearing capacity is low, and service life is short, the problem of easily gas leakage occurs for overall needle valve.
To achieve the above object, the utility model provides following technical scheme：A kind of needle valve, including valve body, the valve
Locking nut is installed, the inner chamber of the locking nut is bolted with valve rod, and the top outer wall of the valve rod is provided with the top of body
Handwheel, is provided with the top of buffering spacer, the buffering spacer between the valve body and valve rod and is provided with gasket seal, the lock
The tight inner chamber of nut and the outer wall of valve rod are provided with elastic component, and the inner chamber of the valve body is provided with ventilation contiguous block, the valve rod
Bottom with ventilation contiguous block be connected, it is described ventilate contiguous block bottom be connected with air intake duct, the left wall of the valve body is provided with
Air admission hole, the left end of the air intake duct is connected with air admission hole, and the right wall of the ventilation contiguous block is provided with gas off-take, the valve body
Right wall be provided with venthole, the right-hand member of the valve body is connected with venthole, the outer wall of the air intake duct and the outer wall of gas off-take
Locking pressure ring is provided with, the inner cavity top of the ventilation contiguous block is provided with packed layer, and the inner chamber of the packed layer is provided with
Bearing, the bottom of the valve rod is arranged on the intracavity bottom of ventilation contiguous block, the interior bottom of chamber of the ventilation contiguous block by bearing
Portion is provided with air inlet port, and the right-hand member of the air intake duct is connected with air inlet port, and the bottom of the valve rod is provided with valve element.
It is preferred that, the elastic component is disc spring.
It is preferred that, the internal diameter of the valve element is more than the external diameter of air inlet port, and the inwall of the valve element is provided with O-shaped sealing
Circle.
It is preferred that, the packed layer is soft graphite packed layer.
It is preferred that, the top outer wall of the valve rod is provided with stop nut.
Compared with prior art, the beneficial effects of the utility model are：This kind of needle valve, by the way that be arranged to valve element can be right
Air inlet port is sealedly acted on, and effectively prevents gases did escape, by setting buffering spacer, gasket seal and elasticity
Part so that needle valve has load big, and stroke is short, and required space is small, is applied in combination conveniently, and maintenance changes the outfit easily, economic security
The characteristics of property is high, simple in construction, easy to operate, stationarity and sealing are greatly improved, and considerably increase service life.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model ventilation connecting block structure schematic diagram.
In figure：1 valve body, 2 locking nuts, 3 valve rods, 4 handwheels, 5 buffering spacers, 6 gasket seals, 7 elastic components, 8 ventilations connect
Connect block, 9 air intake ducts, 10 air admission holes, 11 gas off-takes, 12 ventholes, 13 locking pressure rings, 14 valve elements, 15 packed layers, 16 bearings, 17
Air inlet port.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of needle valve, including valve body 1, the valve body 1
Top locking nut 2 is installed, the inner chamber of the locking nut 2 is bolted with valve rod 3, and the top outer wall of the valve rod 3 is installed
There is handwheel 4, buffering spacer 5 is installed between the valve body 1 and valve rod 3, the top of the buffering spacer 5 is provided with gasket seal
6, the inner chamber of the locking nut 2 and the outer wall of valve rod 3 are provided with elastic component 7, and the inner chamber of the valve body 1 is provided with ventilation connection
Block 8, the bottom of the valve rod 3 is connected with ventilation contiguous block 8, and the bottom of the ventilation contiguous block 8 is connected with air intake duct 9, described
The left wall of valve body 1 is provided with air admission hole 10, and the left end of the air intake duct 9 is connected with air admission hole 10, the right side of the ventilation contiguous block 8
Wall is provided with gas off-take 11, and the right wall of the valve body 1 is provided with venthole 12, and the right-hand member of the valve body 1 is connected with venthole 12,
The outer wall of the air intake duct 9 and the outer wall of gas off-take 11 are provided with locking pressure ring 13, the inner cavity top of the ventilation contiguous block 8
Packed layer 15 is provided with, the inner chamber of the packed layer 15 is provided with bearing 16, and the bottom of the valve rod 3 is arranged on by bearing 16
The intracavity bottom of ventilation contiguous block 8, the intracavity bottom of the ventilation contiguous block 8 is provided with air inlet port 17, the air intake duct 9
Right-hand member is connected with air inlet port 17, and the bottom of the valve rod 3 is provided with valve element 14.
Wherein, the elastic component 7 is disc spring, and load is big, and stroke is short, and required space is small, is applied in combination conveniently, maintenance changes the outfit
Easily, economy and security is high, and the internal diameter of the valve element 14 is more than the external diameter of air inlet port 17, and the inwall of the valve element 14 is provided with
O-ring seal, is easy to carry out air inlet port 17 sealing treatment by valve element 14, the packed layer 15 is filled for soft graphite
Layer, the top outer wall of the valve rod 3 is provided with stop nut, plays spacing effect.
Operation principle：When needle valve is operated, by rotate counterclockwise handwheel 4, valve rod 3 coordinates with locking nut 2
Connection so that valve rod 3 is moved up, valve element 14 departs from air inlet port 17 so that gas is passed through by air admission hole 10 and air intake duct 9
To gas off-take 11 and venthole 12 so that gas can be transported, when needing to close needle valve, pass through the handwheel that turns clockwise
4, valve rod 3 is moved down, and because the internal diameter of valve element 14 is more than the external diameter of air inlet port 17, and the inwall of valve element 14 sets O-shaped close
Seal, plays fine sealing function to air inlet port 17, prevents gases did escape, by setting buffering spacer 5 and sealing gasket
Piece 6 plays a part of sealing well to needle valve and buffered, and elastic component 7 is disc spring, and load is big, and stroke is short, and required space is small,
It is applied in combination conveniently, maintenance changes the outfit easily, and economy and security is high, in the ventilation flexible graphite-filled layer of the lumen loading of contiguous block 8,
It ensure that the air-tightness and plasticity of needle valve.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of needle valve, including valve body (1), it is characterised in that：Locking nut (2), institute are installed at the top of the valve body (1)
The inner chamber for stating locking nut (2) is bolted with valve rod (3), and the top outer wall of the valve rod (3) is provided with handwheel (4), the valve body
(1) it is provided between valve rod (3) at the top of buffering spacer (5), the buffering spacer (5) and is provided with gasket seal (6), it is described
The inner chamber of locking nut (2) and the outer wall of valve rod (3) are provided with elastic component (7), and the inner chamber of the valve body (1) is provided with ventilation and connected
Connect block (8), the bottom of the valve rod (3) be connected with ventilation contiguous block (8), the bottom for ventilating contiguous block (8) be connected with into
Air flue (9), the left wall of the valve body (1) is provided with air admission hole (10), and left end and the air admission hole (10) of the air intake duct (9) connect
Logical, the right wall of the ventilation contiguous block (8) is provided with gas off-take (11), and the right wall of the valve body (1) is provided with venthole (12),
The right-hand member of the valve body (1) is connected with venthole (12), and the outer wall of the air intake duct (9) and the outer wall of gas off-take (11) are respectively provided with
Have a locking pressure ring (13), the inner cavity top of the ventilation contiguous block (8) is provided with packed layer (15), the packed layer (15) it is interior
Chamber is provided with bearing (16), and the bottom of the valve rod (3) is arranged on the intracavity bottom of ventilation contiguous block (8) by bearing (16),
The intracavity bottom of the ventilation contiguous block (8) is provided with air inlet port (17), the right-hand member and air inlet port of the air intake duct (9)
(17) connect, the bottom of the valve rod (3) is provided with valve element (14).
2. a kind of needle valve according to claim 1, it is characterised in that：The elastic component (7) is disc spring.
3. a kind of needle valve according to claim 1, it is characterised in that：The internal diameter of the valve element (14) is more than air inlet port
(17) external diameter, the inwall of the valve element (14) is provided with O-ring seal.
4. a kind of needle valve according to claim 1, it is characterised in that：The packed layer (15) is filled for soft graphite
Layer.
5. a kind of needle valve according to claim 1, it is characterised in that：The top outer wall of the valve rod (3) sets limited
Position nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180040.8U CN206468889U (en) | 2017-02-27 | 2017-02-27 | A kind of needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180040.8U CN206468889U (en) | 2017-02-27 | 2017-02-27 | A kind of needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468889U true CN206468889U (en) | 2017-09-05 |
Family
ID=59713163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720180040.8U Expired - Fee Related CN206468889U (en) | 2017-02-27 | 2017-02-27 | A kind of needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578602A (en) * | 2018-11-21 | 2019-04-05 | 浙江工贸职业技术学院 | A kind of guide type valve |
-
2017
- 2017-02-27 CN CN201720180040.8U patent/CN206468889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578602A (en) * | 2018-11-21 | 2019-04-05 | 浙江工贸职业技术学院 | A kind of guide type valve |
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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 |
Granted publication date: 20170905 Termination date: 20180227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |