CN208967140U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN208967140U CN208967140U CN201821629657.4U CN201821629657U CN208967140U CN 208967140 U CN208967140 U CN 208967140U CN 201821629657 U CN201821629657 U CN 201821629657U CN 208967140 U CN208967140 U CN 208967140U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- spring
- gas vent
- 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
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of safety valves, including lower valve body, it is installed on the upper valve body of lower valve body and is set to the runner of lower valve body, bolt is installed on the upper valve body, the valve rod for extending into upper valve body is equipped on the bolt, the runner includes air intake duct and the gas vent for being connected to air intake duct, valve seat is installed between the air intake duct and gas vent, the spool that cooperation valve seat realizes sealing is installed on the valve rod, the valve rod is equipped with driving seal spool in the spring of valve seat, the lower valve body outer wall, which is located at below gas vent, is installed with positive stop lug boss, the gauze net cover for being fixed on positive stop lug boss top and seal vents is arranged with outside the lower valve body.The utility model has the following advantages that and effect: the utility model has product small and exquisite, compact-sized and can prevent extraneous particulate matter from entering inside lower valve body.
Description
Technical field
The utility model relates to a kind of valve, in particular to a kind of safety valve.
Background technique
Safety valve is that opening and closing element is in normally off under by external force, is surpassed when the pressure medium in equipment or pipeline increases
When crossing specified value, by outside system discharge medium come to prevent pressure medium in pipeline or equipment be more than the particular usage valve of specified value
Door.Safety valve belongs to automatic valve class, is mainly used for boiler, tank body, on pressure vessels and pipes, and control pressure is no more than regulation
Value, has run important protective effect to personal safety and equipment.When safety valve applies to tank body, safety valve is for adjusting tank
Gas extra in tank body is discharged in outside air by the internal pressure of body, so that the pressure of tank interior does not exceed rule
Definite value.
But safety valve volume in the prior art is all larger, is not suitable for installing and using on some small-sized tank bodies, and existing
During opening exhaust, the particulate matter in outside air is easy to enter peace by gas vent safety valve in technology
In full valve and then tank interior is reached, the substance of tank interior is impacted.
Utility model content
It is the safety valve compact, compact-sized and can prevent outer the purpose of the utility model is to provide a kind of safety valve
The particulate matter on boundary enters inside lower valve body.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of safety valve, including
Lower valve body, the upper valve body for being installed on lower valve body and the runner for being set to lower valve body are equipped with bolt on the upper valve body, described
The valve rod for extending into upper valve body is equipped on bolt, the runner includes the gas vent of air intake duct and connection air intake duct, described
It is installed with valve seat between air intake duct and gas vent, the spool that cooperation valve seat realizes sealing, the valve rod are installed on the valve rod
Driving seal spool is equipped in the spring of valve seat, the lower valve body outer wall, which is located at below gas vent, is installed with positive stop lug boss,
The gauze net cover for being fixed on positive stop lug boss top and seal vents is arranged with outside the lower valve body.
By using above-mentioned technical proposal, spring drives seal spool in valve seat, when the gas pressure in air intake duct is greater than
When the active force of spring, gas pressure drives spool to be detached from valve seat, realizes air intake duct and the conducting of gas vent between the two, so that
Gas is drained into outside air by gas vent, this kind of setting structure is small and exquisite, compact, and being suitble to install on small-sized tank body makes
With.And the gauze net cover by being arranged plays barrier action to gas vent and the external world, prevents the particulate matter in the external world from passing through exhaust
Hole enters inside lower valve body, and gauze net cover is arranged to be arranged the mode for being fixed on lower valve body, can facilitate and carry out to gauze net cover
Assembling and replacement.
Be further arranged to: the axial direction of the gas vent and the axially vertical setting of valve rod, the gas vent is around valve
The center of circle of bar be distributed with it is multiple, the lower valve body outer wall close to the position of air intake duct be equipped with for installing fixed flank.
By using above-mentioned technical proposal, the setting of multiple gas vents can increase the capacity of the valve, realize gas pressure
The quick adjusting of power, and this kind of set-up mode does not need to increase additional gauze net cover, is able to achieve by an original gauze net cover
Multiple gas vents are stopped, there is better practicability.And the set-up mode of flank can facilitate the valve in installation site
Installation it is fixed and achieve the purpose that be detachably connected, make the easier for installation of valve.
It is further arranged to: being equipped with sealing ring between the spool and valve seat.
By using above-mentioned technical proposal, the setting of sealing ring increases spool and the leakproofness of valve seat between the two.
Be further arranged to: the spring base being arranged with inside upper valve body on the valve rod, the spring pocket are set to valve
Bar and between spring base and spool, the spring base extend into spring and contradict in spring towards being installed on one side for spring
First retention bead of circle, an end face of the spool towards spring, which is installed with, to be extended into spring and contradicts the second of spring inner ring
Retention bead.
Cooperation pair by using above-mentioned technical proposal, between the first retention bead, the second retention bead and valve rod three
Spring is limited, and spring is prevented to be subjected to displacement or be detached from because over-stressed, and the spring of setting provides more spool
Add stable driving force.
Be further arranged to: the upper valve body is threadedly coupled with lower valve body, bolt is threadedly coupled with upper valve body, the bolt
Position outside upper valve body is threaded with nut.
By using above-mentioned technical proposal, the mode of threaded connection, which can facilitate, assemble and can apply spring to valve
Active force be adjusted, the bolt being threadedly coupled with upper valve body is locked by the setting of nut, prevents its generation
It loosens or is detached from.
Be further arranged to: the gas vent includes linkage section and the flared section for being connected to linkage section, and the linkage section is set
It sets in the side close to valve rod.
By using above-mentioned technical proposal, the setting of flared section increases the capacity of gas vent, so that the exhaust of gas vent
It is more smooth.
Be further arranged to: the position that the stem outer circumference wall is located above bolt is equipped with pull rod, the pull rod and valve
Bar is threadedly coupled.
By using above-mentioned technical proposal, the setting of pull rod is able to achieve to the manually opened of valve.
In conclusion the utility model has the following beneficial effects: the utility model has small and exquisite, the compact-sized and energy of product
Prevent extraneous particulate matter from entering inside lower valve body.
Detailed description of the invention
Fig. 1 is the cross-sectional view of embodiment.
In figure: 1, lower valve body；2, upper valve body；3, runner；31, air intake duct；32, gas vent；321, linkage section；322, it is flared
Section；4, bolt；5, valve rod；6, valve seat；7, spool；8, spring；9, positive stop lug boss；10, gauze net cover；11, flank；12, it seals
Circle；13, spring base；14, the first retention bead；15, the second retention bead；16, nut；17, pull rod.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
With reference to Fig. 1, a kind of safety valve, including lower valve body 1 is threaded with upper valve body 2 above lower valve body 1, in lower valve body 1
Offer runner 3, runner 3 includes air intake duct 31 and is connected to air intake duct 31 and vertically disposed gas vent 32, gas vent 32
It is distributed with around the center of circle of air intake duct 31 multiple.The lower section that 1 outer wall of lower valve body is located at gas vent 32 be wholely set around
The annular stop boss 9 in 31 center of circle of air intake duct is arranged with gauze net cover 10 in lower valve body 1, and the lower end surface of gauze net cover 10 contacts at limit
Upper surface, the internal perisporium of gauze net cover 10 and the periphery wall of lower valve body 1 of position boss 9 offset, and the sealing of gauze net cover 10 is vented
Hole 32.The lower position that 1 periphery wall of lower valve body is located at positive stop lug boss 9 offers flank 11, and gas vent 32 includes linkage section 321
And the flared section 322 of connection linkage section 321, flared section 322 are positioned close to the straight of the side of gauze net cover 10 and flared section 322
Diameter is greater than the diameter of linkage section 321.
It is threaded with bolt 4 above upper valve body 2, the nut 16 for contacting at 2 top of upper valve body, spiral shell are arranged on bolt 4
Mother 16 is threadedly coupled with bolt 4, and the valve rod 5 extended into inside upper valve body 2, air intake duct 31 and gas vent 32 are equipped on bolt 4
It is wholely set valve seat 6 between the two, one end that valve rod 5 is located inside upper valve body 2 is installed with the valve that cooperation valve seat 6 realizes sealing
Core 7 is equipped with sealing ring 12 between spool 7 and valve seat 6, the position that 5 periphery wall of valve rod is located at 4 top of bolt is equipped with pull rod 17,
It is threadedly coupled between pull rod 17 and valve rod 5.The spring base 13 being arranged with inside upper valve body 2 on valve rod 5 is arranged on valve rod 5
There is the spring 8 between spring base 13 and spool 7, the one side of spring base 13 towards spring 8, which is equipped with, to be extended into spring 8 and contradict
First retention bead 14 of 8 inner ring of spring, spool 7 is equipped with towards an end face of spring 8 to be extended into spring 8 and contradicts in spring 8
Second retention bead 15 of circle.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
1. a kind of safety valve, it is characterised in that: including lower valve body (1), be installed on the upper valve body (2) of lower valve body (1) and be arranged
Runner (3) in lower valve body (1) is equipped with bolt (4) on the upper valve body (2), is equipped with and extends on the bolt (4)
The valve rod (5) of valve body (2), the runner (3) includes the gas vent (32) of air intake duct (31) and connection air intake duct (31), described
It is installed between air intake duct (31) and gas vent (32) valve seat (6), it is close that cooperation valve seat (6) realization is installed on the valve rod (5)
The spool (7) of envelope, the valve rod (5) are equipped with the spring (8) that driving spool (7) is sealed in valve seat (6), the lower valve body (1)
Outer wall, which is located at below gas vent (32), is installed with positive stop lug boss (9), is arranged with outside the lower valve body (1) and is fixed on positive stop lug boss
(9) gauze net cover (10) of top and seal vents (32).
2. safety valve according to claim 1, it is characterised in that: the axial direction of the gas vent (32) and the axis of valve rod (5)
To being vertically arranged, the center of circle of gas vent (32) around the valve rod (5) is distributed with multiple, and lower valve body (1) outer wall is close
The position of air intake duct (31) is equipped with for installing fixed flank (11).
3. safety valve according to claim 1, it is characterised in that: be equipped with sealing ring between the spool (7) and valve seat (6)
(12)。
4. safety valve according to claim 1, it is characterised in that: be arranged on the valve rod (5) in upper valve body (2)
The spring base (13) in portion, the spring (8) are sheathed on valve rod (5) and between spring base (13) and spools (7), the spring
Seat (13) is installed with the first retention bead for extending into spring (8) and contradicting spring (8) inner ring towards spring (8) on one side
(14), an end face of spool (7) towards the spring (8), which is installed with, extends into spring (8) and contradicts the second of spring (8) inner ring
Retention bead (15).
5. safety valve according to claim 1, it is characterised in that: the upper valve body (2) is threadedly coupled with lower valve body (1),
Bolt (4) is threadedly coupled with upper valve body (2), and the bolt (4) is located at the external position of upper valve body (2) and is threaded with nut
(16)。
6. safety valve according to claim 1, it is characterised in that: the gas vent (32) include linkage section (321) and
It is connected to the flared section (322) of linkage section (321), the linkage section (321) is positioned close to the side of valve rod (5).
7. safety valve according to claim 1, it is characterised in that: valve rod (5) periphery wall is located above bolt (4)
Position is equipped with pull rod (17), and the pull rod (17) is threadedly coupled with valve rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821629657.4U CN208967140U (en) | 2018-10-08 | 2018-10-08 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821629657.4U CN208967140U (en) | 2018-10-08 | 2018-10-08 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208967140U true CN208967140U (en) | 2019-06-11 |
Family
ID=66759032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821629657.4U Expired - Fee Related CN208967140U (en) | 2018-10-08 | 2018-10-08 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208967140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413138A (en) * | 2020-11-17 | 2021-02-26 | 中航通飞华南飞机工业有限公司 | Water-tight liquid discharge valve for seaplane |
-
2018
- 2018-10-08 CN CN201821629657.4U patent/CN208967140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413138A (en) * | 2020-11-17 | 2021-02-26 | 中航通飞华南飞机工业有限公司 | Water-tight liquid discharge valve for seaplane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202942685U (en) | Three-phase separator with externally-adjustable weir plate structure | |
| CN207454852U (en) | A kind of double-direction relief valve | |
| CN107013717A (en) | A kind of automatic decompression device for relief valve | |
| CN208967140U (en) | Safety valve | |
| CN204254239U (en) | Low-pressure large-displacement double-valve-clack natural gas trap | |
| CN105757279B (en) | A kind of magnetic suspension air blower two-stage guide's blow valve | |
| CN203395303U (en) | One-way and two-way switching valve | |
| CN206864930U (en) | A kind of fire-retardent distribution box | |
| CN206377312U (en) | Enclosed type safety valve and electric heater | |
| CN207378165U (en) | It is a kind of to push closed steam-water separation valve | |
| CN204083393U (en) | Inlet valve high pressure air inlet and exhaust valve | |
| CN207648155U (en) | A kind of novel soft sealing butterfly valve | |
| CN206539746U (en) | A kind of spring loaded safe valve of energy sediment prevention intrusion | |
| CN206754583U (en) | A kind of ball valve being conveniently replaceable | |
| CN205978671U (en) | Decompression type hangs down resistance backflow preventer | |
| CN203604702U (en) | Full-welding top-assembling-type floating ball valve | |
| CN206708473U (en) | A kind of deadweight safety valve | |
| CN206830922U (en) | A kind of spilling water safety valve | |
| CN208792444U (en) | A kind of automatic air intaking valve for low-pressure drainage system | |
| CN207297901U (en) | A kind of dark valve with cut-off spool | |
| CN207609826U (en) | A kind of safety valve | |
| CN206234422U (en) | A kind of power plant handle spring formula safety valve | |
| CN208397402U (en) | A kind of electromagnetic valve | |
| CN207246426U (en) | Full balance blow valve | |
| CN205944986U (en) | Dive axial -flow pump cable outlet structure |
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: 20190611 Termination date: 20211008 |