CN209705356U - A kind of exhaust valve - Google Patents
A kind of exhaust valve Download PDFInfo
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- CN209705356U CN209705356U CN201920437038.3U CN201920437038U CN209705356U CN 209705356 U CN209705356 U CN 209705356U CN 201920437038 U CN201920437038 U CN 201920437038U CN 209705356 U CN209705356 U CN 209705356U
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- valve
- air inlet
- hole section
- venthole
- valve body
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Abstract
The utility model discloses a kind of exhaust valves, including the first valve body, first valve body has the first valve chamber up and down, valve rod is installed in first valve chamber, first valve chamber includes upper hole section, lower hole section, the diameter of upper hole section is less than the diameter of lower hole section, step surface is equipped between upper hole section and lower hole section, the first cylinder expanded is arranged at intervals on valve rod up and down, second cylinder, the lower part of lower hole section is equipped with air inlet duct, the lower end of air inlet duct penetrates through the lower end surface of the first valve body, first valve body is equipped with the first venthole of connection lower hole section, first venthole is higher than the upper end of air inlet duct, spring is set on valve rod, the upper and lower ends of spring are acted against respectively on step surface and the first cylinder, part outside the first valve chamber of stretching of valve rod is equipped with external screw thread and is screwed with locking nut.The utility model can be mounted on melt conveying pipeline, for the exhaust in thermally conductive oil circulation process, have the advantages that simple, easy to use, the safe and reliable advantage of structure.
Description
Technical field
The utility model relates to a kind of exhaust valves.
Background technique
It needs to be sent to extruding machine by conveyance conduit after plastic molting, is processed into type, the plastics after fusing are known as molten
Body during melt conveying, needs to heat conveyance conduit, to keep the temperature of melt, currently used method is
It is arranged one layer of outer tube again on conveyance conduit, outer tube and conveyance conduit form cavity, then form thermally conductive oil pocket for closed at both ends, lead
Circulate conduction oil in hot oil chamber, and outside setting oil pump is allowed to recycle, and heating device is arranged and heats to conduction oil, is allowed to protect
Hold certain temperature.During conduction oil circulation, centre can adulterate air, and air, which is constantly assembled, to be formed in conduction oil
Bubble, bubble stop the circulation that will affect conduction oil in thermally conductive oil pocket, make the reduction of conveyance conduit local temperature, influence melt
Normal conveying, it is therefore desirable to install exhaust of the exhaust valve for thermally conductive oil pocket.
Utility model content
The purpose of this utility model is to provide a kind of exhaust valve for the exhaust of thermally conductive oil pocket regarding to the issue above.
To reach above-mentioned purpose, the utility model includes the first valve body, and the first valve body has the first valve chamber up and down,
Valve rod is installed in the first valve chamber, the upper end of valve rod is stretched out outside the first valve chamber, and the first valve chamber includes upper hole section, lower hole section,
The diameter of upper hole section is less than the diameter of lower hole section, and step surface is equipped between upper hole section and lower hole section, on valve rod up and down
It is arranged at intervals with the first cylinder expanded, the second cylinder, the lower part of lower hole section is equipped with air inlet duct, the lower end perforation of air inlet duct the
The lower end surface of one valve body, the first valve body are equipped with the first venthole of connection lower hole section, and the first venthole is higher than air inlet duct
Upper end, valve rod can be up and down in the first valve body and has upper and lower two operating positions, when valve rod is located at upper working position
When the first cylinder be higher than the first venthole and the second cylinder position equipped with air inlet duct that is located at lower hole section, when valve rod is located at lower part
The first cylinder can block the first venthole when operating position and the second cylinder is located at the position that lower hole section is equipped with air inlet duct, valve
Spring is set on bar, the upper and lower ends of spring act against the top surface of step surface and the first cylinder, the stretching first of valve rod respectively
Part outside valve chamber is equipped with external screw thread and is screwed with locking nut.The usage mode of the exhaust valve is as follows: thermally conductive oil pocket be connected to
The exhaust pipe of upper extension, the lower end of the first valve body are connected with the upper end of exhaust pipe, and connection type can be welding, threaded connection
Etc., thus exhaust valve is mounted on exhaust pipe, when needing to be vented, locking nut is screwed, valve rod rises to top work
Position, the first cylinder are higher than the first venthole, and gas can enter lower hole section by air inlet duct, then outside by the first venthole
Discharge.After exhaust, locking nut is unscrewed, valve rod, which is under spring action, drops to lower part operating position, the first cylinder
First venthole is blocked, can prevent conduction oil from flowing outwardly by the first venthole, when conduction oil intracavity gas pressure is excessive
Valve rod can be jacked up, realize self-exhausting, play the role of safety valve.
First valve body is equipped with the second venthole of connection lower hole section, and the second venthole is located at the first venthole
Lower section, when valve rod is located at upper working position, the second cylinder is located at the top of the second venthole, when valve rod is located at lower part work
The second cylinder can block the second venthole when position；The exhaust valve further includes the second valve body, is equipped with the second valve in the second valve body
Chamber, the side of the second valve body be equipped between the upper and lower every the first air inlet, the second air inlet, the top of the second valve body is equipped with connection the
The gas vent of two valve chambers, the first air inlet are connected to through the hole wall of gas vent with gas vent, the first venthole and the first air inlet
Between be connected with the first connecting tube, be connected with the second connecting tube between the second venthole and the second air inlet, peace in the second valve chamber
Equipped with rocker piece that is movable up and down and can floating in conduction oil, the top of rocker piece is connected with inserting column, inserting column it is upper
End is inserted into gas vent, and when rocker piece is fallen under gravity, inserting column is located at the lower section of the first air inlet, rocker piece
Inserting column can block the first air inlet after floating.After adopting the above structure, when exhaust valve is in exhaust condition, valve rod is located at upper
Portion operating position, if lower hole section do not have conduction oil enter exhaust valve can normal exhaust, if there is conduction oil entrance in lower hole section,
Conduction oil can enter the second valve chamber by the second venthole, the second air inlet, finally rocker piece be made to float, inserting column rise and by the
One air inlet blocks, and thus conduction oil can be prevented to enter gas vent, plays the role of preventing conduction oil from leaking；If in lower hole section
There is no conduction oil entrance, rocker piece falls under gravity, and inserting column declines and gas is allow to pass through the first venthole, the
One connecting tube, the first air inlet, gas vent discharge.It can be seen that by making exhaust valve when exhaust after above-mentioned improvement
It can prevent conduction oil from leaking.
The rocker piece that the bottom of second valve body is equipped with the second valve chamber of connection installs entrance, and rocker piece installation entrance is equipped with
Sealing screw thread is simultaneously screwed with blanking cover.Make rocker piece that entrance disengaging can be installed by rocker piece, after adopting the above structure convenient for floating
The installation of motion block.
First valve body is column structure, and the top of the first valve body is equipped with external screw thread and is screwed with upper end cover, upper end cover
It is equipped with through-hole, the through-hole of valve rod passed through on upper end cover, locking nut is pressed against on the top surface of upper end cover, under the first valve body
Portion's outer peripheral surface is equipped with connection screw thread.After adopting the above structure, upper end cover can be replaced, direct with locking nut using upper end cover
Contact, can prevent from damaging the upper surface of the first valve body when locking nut is elastic, and connection screw thread can facilitate to be connected with exhaust pipe
It connects.
The valve rod is equipped with location hole close to the position of upper end, and positioning hole is fitted with positioning pin.By holding positioning pin
It can prevent valve rod from rotating, convenient for screwing for locking nut, in addition positioning pin has the function of limit to locking nut, prevents its rotation
Degree of being threaded through guarantees normal exhaust.
In conclusion the exhaust valve can be mounted on melt conveying pipeline, for the exhaust in thermally conductive oil circulation process,
Guarantee the normal work of Heat-conduction oil circulation system, which has the advantages that structure is simple, easy to use, when conduction oil is intracavitary
Gas pressure it is excessive when can self-exhausting, guarantee safety.
Detailed description of the invention
Specific embodiment of the present utility model is further described in detail with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is the structural schematic diagram in Fig. 1 after line A-A cutting；
Fig. 3 is the structural schematic diagram of another working condition of embodiment shown in FIG. 1；
Fig. 4 is the structural schematic diagram of two kinds of embodiments of the utility model；
Fig. 5 is the structural schematic diagram of another working condition of embodiment shown in Fig. 4.
Specific embodiment
Referring to figs. 1 to Fig. 3, in the first embodiment of the utility model, exhaust valve includes the first valve body 1, the first valve
Body 1 has the first valve chamber 2 up and down, and valve rod 3 is equipped in the first valve chamber 2, and the upper end of valve rod 3 is stretched out outside the first valve chamber 2,
First valve chamber 2 includes upper hole section 4, lower hole section 5, and the diameter of upper hole section 4 is less than the diameter of lower hole section 5, upper hole section 4
It is equipped with step surface 6 between lower hole section 5, is arranged at intervals with the first cylinder 7 expanded, the second cylinder 8 up and down on valve rod 3, under
The lower part of portion's hole section 5 is equipped with air inlet duct 9, and the lower end of air inlet duct 9 penetrates through the lower end surface of the first valve body 1, and the first valve body 1, which is equipped with, to be connected
First venthole 10 of logical lower hole section 5, the first venthole 10 are higher than the upper end of air inlet duct 9, and valve rod 3 can be in the first valve body 1
Up and down and have upper and lower two operating positions, when valve rod 3 is located at upper working position, the first cylinder 7 is higher than the first outlet
Hole 10 and the second cylinder 8 are located at the position that lower hole section 5 is equipped with air inlet duct 9, the first column when valve rod 3 is located at lower part operating position
Body 7 can block the first venthole 10 and the second cylinder 8 is located at the position that lower hole section 5 is equipped with air inlet duct 9, be set on valve rod 3
There is spring 11, the upper and lower ends of spring 11 act against the top surface of step surface 6 and the first cylinder 7, the first valve of stretching of valve rod 3 respectively
Part outside chamber 2 is equipped with external screw thread and is screwed with locking nut 12.The usage mode of the exhaust valve is as follows: thermally conductive oil pocket be connected to
The lower end of the exhaust pipe of upper extension, the first valve body 1 is connected with the upper end of exhaust pipe, and connection type can connect for welding, screw thread
Connect etc., thus exhaust valve is mounted on exhaust pipe, when needing to be vented, locking nut 12 is screwed, valve rod 3 rises to top
Operating position, the first cylinder 7 are higher than the first venthole 10, and gas can enter lower hole section 5 by air inlet duct 9, then pass through first
Venthole 10 discharges.After exhaust, locking nut 12 is unscrewed, valve rod 3 is down to lower part by under the action of spring 11
Operating position, the first cylinder 7 block the first venthole 10, can prevent conduction oil from flowing outwardly by the first venthole 10, when
Conduction oil intracavity gas pressure is excessive to jack up valve rod 3, realize self-exhausting, play the role of safety valve.It can be seen that should
Exhaust valve can be mounted on melt conveying pipeline, for the exhaust in thermally conductive oil circulation process, guarantee Heat-conduction oil circulation system
Normal work, which has the advantages that structure is simple, easy to use, can when conduction oil intracavity gas pressure is excessive from
Row exhaust, guarantees safety.
With continued reference to Fig. 1 to Fig. 3, the first valve body 1 is column structure, and the top of the first valve body 1 is equipped with external screw thread and spiral shell dress
There is upper end cover 24, upper end cover 24 is equipped with through-hole, the through-hole of valve rod 3 passed through on upper end cover 24, and locking nut 12 is pressed against
On the top surface of end cap 24, the lower, outer perimeter face of the first valve body 1 is equipped with connection screw thread 25.After adopting the above structure, upper end cover 24
It can replace, directly be contacted using upper end cover 24 with locking nut 12, to the first valve body 1 when locking nut 12 can be prevented elastic
Upper surface damages, and connection screw thread 25 can facilitate to be connected with exhaust pipe.
With continued reference to Fig. 1 to Fig. 3, valve rod 3 is equipped with location hole 26 close to the position of upper end, is fitted with positioning in location hole 26
Pin.It can prevent valve rod 3 from rotating by holding positioning pin, convenient for screwing for locking nut 12, in addition positioning pin is to locking nut 12
Have the function of limit, prevents it from screwing excessively, guarantee normal exhaust.
Referring to Fig. 4, Fig. 5, second of embodiment of the utility model has been done further on the basis of the first embodiment
Improvement, improved first valve body 1 is equipped with the second venthole 13 of connection lower hole section 5, and the second venthole 13 is located at the
The lower section of one venthole 10, when valve rod 3 is located at upper working position, the second cylinder 8 is located at the top of the second venthole 13, when
The second cylinder 8 can block the second venthole 13 when valve rod 3 is located at lower part operating position；The exhaust valve further includes the second valve body
14, be equipped with the second valve chamber 15 in the second valve body 14, the side of the second valve body 14 be equipped between the upper and lower every the first air inlet 16, second
Air inlet 17, the top of the second valve body 14 are equipped with the gas vent 18 of the second valve chamber 15 of connection, and the first air inlet 16 penetrates gas vent
18 hole wall is connected to gas vent 18, is connected with the first connecting tube 19 between the first venthole 10 and the first air inlet 16, and second
The second connecting tube 20 is connected between venthole 13 and the second air inlet 17, be equipped in the second valve chamber 15 it is movable up and down simultaneously
And the rocker piece 21 that can be floated in conduction oil, the top of rocker piece 21 are connected with inserting column 22, the upper end of inserting column 22 is inserted into row
In stomata 18, when rocker piece 21 is fallen under gravity, inserting column 22 is located at the lower section of the first air inlet 16, rocker piece 21
Inserting column 22 can block the first air inlet 16 after floating.After adopting the above structure, when exhaust valve is in exhaust condition, valve rod 3
Positioned at upper working position, if lower hole section 5 without conduction oil enter exhaust valve can normal exhaust, if being led in lower hole section 5
Hot oil enters, and conduction oil can enter the second valve chamber 15 by the second venthole 13, the second air inlet 17, finally makes on rocker piece 21
Floating, inserting column 22 rises and blocks the first air inlet 16, conduction oil thus can be prevented to enter gas vent 18, playing prevents conduction oil
The effect of leakage；If entering in lower hole section 5 without conduction oil, rocker piece 21 falls under gravity, and inserting column 22 declines
And gas is discharged by the first venthole 10, the first connecting tube 19, the first air inlet 16, gas vent 18.It can be seen that
By making exhaust valve that can prevent conduction oil from leaking when exhaust after above-mentioned improvement.
With continued reference to Fig. 4, Fig. 5, the rocker piece that the bottom of the second valve body 14 is equipped with the second valve chamber 15 of connection installs entrance 27,
Rocker piece installation entrance 27 is equipped with sealing screw thread and is screwed with blanking cover 23.Make rocker piece 21 can be by floating after adopting the above structure
Motion block is installed entrance 27 and is passed in and out, convenient for the installation of rocker piece 21.
In conclusion the utility model is not limited to above-mentioned specific embodiment.Those skilled in the art are not departing from this reality
Under the premise of with novel spirit and scope, several change and modification can be done, it is practical new that all these variations should all fall into this
The protection scope of type.
Claims (5)
1. a kind of exhaust valve, including the first valve body (1), it is characterized in that first valve body (1) has the first valve up and down
Chamber (2), the first valve chamber (2) is interior to be equipped with valve rod (3), and the first valve chamber (2) are stretched out outside in the upper end of valve rod (3), and the first valve chamber (2) is
Including upper hole section (4), lower hole section (5), the diameter of upper hole section (4) is less than the diameter of lower hole section (5), upper hole section
(4) step surface (6) are equipped between lower hole section (5), are arranged at intervals with the first cylinder (7) expanded, the on valve rod (3) up and down
The lower part of two cylinders (8), lower hole section (5) is equipped with air inlet duct (9), the lower end of the lower end perforation the first valve body (1) of air inlet duct (9)
Face, the first valve body (1) are equipped with the first venthole (10) of connection lower hole section (5), and the first venthole (10) is higher than air inlet duct
(9) upper end, valve rod (3) can be up and down in the first valve body (1) and has upper and lower two operating positions, when valve rod (3) position
The first cylinder (7) is higher than the first venthole (10) when upper working position and the second cylinder (8) is located at lower hole section (5) and is equipped with
The position of air inlet duct (9), when valve rod (3) is located at lower part operating position, the first cylinder (7) can block the first venthole (10)
And second cylinder (8) be located at position that lower hole section (5) are equipped with air inlet duct (9), be set with spring (11), spring on valve rod (3)
(11) upper and lower ends act against the top surface of step surface (6) and the first cylinder (7), the first valve chamber of stretching (2) of valve rod (3) respectively
Outer part is equipped with external screw thread and is screwed with locking nut (12).
2. exhaust valve according to claim 1, it is characterized in that first valve body (1) is equipped with connection lower hole section (5)
The second venthole (13), the second venthole (13) is located at the lower section of the first venthole (10), when valve rod (3) is located at top work
The second cylinder (8) is located at the top of the second venthole (13), the second cylinder when valve rod (3) is located at lower part operating position when position
(8) the second venthole (13) can be blocked；The exhaust valve further includes the second valve body (14), is equipped with the second valve in the second valve body (14)
Chamber (15), the side of the second valve body (14) be equipped between the upper and lower every the first air inlet (16), the second air inlet (17), the second valve body
(14) top is equipped with the gas vent (18) of connection the second valve chamber (15), and the first air inlet (16) penetrates the hole wall of gas vent (18)
It is connected to, is connected between the first venthole (10) and the first air inlet (16) the first connecting tube (19), second with gas vent (18)
It is connected between venthole (13) and the second air inlet (17) the second connecting tube (20), being equipped in the second valve chamber (15) can be upper and lower
Rocker piece (21) that is movable and can floating in conduction oil, the top of rocker piece (21) is connected with inserting column (22), inserting column
(22) upper end is inserted into gas vent (18), and when rocker piece (21) is fallen under gravity, inserting column (22) is located at first
The lower section of air inlet (16), inserting column (22) can block the first air inlet (16) after rocker piece (21) floats.
3. exhaust valve according to claim 2, it is characterized in that the bottom of second valve body (14) is equipped with the second valve of connection
The rocker piece of chamber (15) installs entrance (27), and rocker piece installation entrance (27) is equipped with sealing screw thread and is screwed with blanking cover (23).
4. exhaust valve according to claim 1, it is characterized in that first valve body (1) is column structure, the first valve body (1)
Top be equipped with and external screw thread and be screwed with upper end cover (24), upper end cover (24) is equipped with through-hole, and valve rod (3) passes through upper end cover
(24) through-hole on, locking nut (12) are pressed against on the top surface of upper end cover (24), are set on the lower, outer perimeter face of the first valve body (1)
There are connection screw thread (25).
5. exhaust valve according to claim 1, it is characterized in that the valve rod (3) is equipped with location hole close to the position of upper end
(26), positioning pin is fitted in location hole (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437038.3U CN209705356U (en) | 2019-04-02 | 2019-04-02 | A kind of exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437038.3U CN209705356U (en) | 2019-04-02 | 2019-04-02 | A kind of exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705356U true CN209705356U (en) | 2019-11-29 |
Family
ID=68646643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920437038.3U Active CN209705356U (en) | 2019-04-02 | 2019-04-02 | A kind of exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812606A (en) * | 2019-04-02 | 2019-05-28 | 威海旭日过滤器有限公司 | A kind of exhaust valve |
-
2019
- 2019-04-02 CN CN201920437038.3U patent/CN209705356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812606A (en) * | 2019-04-02 | 2019-05-28 | 威海旭日过滤器有限公司 | A kind of exhaust valve |
| CN109812606B (en) * | 2019-04-02 | 2024-02-09 | 威海旭日过滤器股份有限公司 | Exhaust valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 264200 dongxuri Industrial Park, yangjiatai village, Zhuhai Road, Weihai Economic and Technological Development Zone, Shandong Province (self declaration) Patentee after: Weihai Xuri filter Co.,Ltd. Address before: 264205 room a2705, no.6, Letian Century City, Weihai Economic and Technological Development Zone, Shandong Province Patentee before: WEIHAI RISING SUN FILTER Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of exhaust valve Effective date of registration: 20230703 Granted publication date: 20191129 Pledgee: Postal Savings Bank of China Limited Weihai Branch Pledgor: Weihai Xuri filter Co.,Ltd. Registration number: Y2023980046956 |