CN207829923U - A kind of safety valve - Google Patents
A kind of safety valve Download PDFInfo
- Publication number
- CN207829923U CN207829923U CN201820114969.5U CN201820114969U CN207829923U CN 207829923 U CN207829923 U CN 207829923U CN 201820114969 U CN201820114969 U CN 201820114969U CN 207829923 U CN207829923 U CN 207829923U
- Authority
- CN
- China
- Prior art keywords
- spool
- cylinder body
- cavity
- guide sleeve
- flow guide
- 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
- Multiple-Way Valves (AREA)
Abstract
The utility model discloses a kind of safety valve, including gas plug, cylinder body and spool, cylinder interior is penetrating cavity, and chuck is arranged in cavity inner wall；Annular through-hole is set in the middle part of cylinder body；Spool is loaded on cylinder interior centre position, and is close to cylinder body chuck inner wall；And pass through sealing ring sealed valve core and cylinder gap；Gas plug is composed of plug, hermetic seal, gaseous core, little spring, catch, snap ring；The spool is in the form of a column, and one end is equipped with spool cavity, and the other end is equipped with cricoid stomata；The stomata is connected with the valve pool being arranged on spool outer ring；Flow guide sleeve is also cased on the cylinder body, flow guide sleeve is equipped with liquid return hole；The utility model not only makes its production difficulty reduce the improvement of spool, but also the opposite pressure release coefficient for increasing safety valve, is even more to have accomplished rational recovery processing for the oil spout after pressure release.
Description
Technical field
The utility model is related to technical field of hydraulic pressure, and in particular to a kind of safety valve.
Background technology
Hydraulic system is the key that comprehensive mechanical coal mining support apparatus, it is related to the safety of entire fully mechanized mining process,
And the security performance of hydraulic support depends on hydraulic package to realize, in order to ensure that the pressure in hydraulic support is no more than most
Big limit value, to ensure the security performance of hydraulic support, therefore safety valve becomes the important safety component of hydraulic support, existing
Safety valve in, since hydraulic support load capacity is big, there are no a kind of suitable hydraulic supports to be used multiple times, facilitates Byway
Safety valve；Therefore, it is necessary to a kind of novel deadweight safety valves, to ensure the normal support capacity of holder and provide reliable safety
Coefficient；In existing technology, a kind of fluid pressure type check valve disclosed in Patent No. CN201621101045.9, discloses one kind
The unloading cutout valve combined with check valve, but found when putting into practice use, in unloading cutout valve disclosed in the utility model
The both sides cavity of spool setting, the annular being arranged on the two gas balance holes and other side cavity also on the cavity of side are let out
Oilhole, these combination production difficulties are larger, not simple and direct laborsaving enough, and are to accomplish at rational recycling for the oil spout after pressure release
Reason.
Invention content
Shortcomings and deficiencies present in view of the above technology, the utility model aim be to provide a kind of safety valve, the dress
Setting the improvement to spool not only makes its production difficulty reduce, but also the opposite pressure release coefficient for increasing safety valve, for letting out
Oil spout after pressure is even more to have accomplished rational recovery processing.
Technical solution is used by realizing above-mentioned purpose of utility model：A kind of safety valve, including gas plug, cylinder body and valve
Core, cylinder interior are penetrating cavity, and are equipped with chuck in cavity inner wall；Annular through-hole is set in the middle part of cylinder body；Spool is loaded on cylinder body
Bosom position, and it is close to cylinder body chuck inner wall；And pass through sealing ring sealed valve core and cylinder gap；Gas plug by plug,
Hermetic seal, gaseous core, little spring, catch, snap ring are composed；The spool is in the form of a column, and one end is equipped with spool cavity, the other end
Equipped with cricoid stomata；The stomata is connected with the valve pool being arranged on spool outer ring；It is also cased with flow guide sleeve on the cylinder body,
Flow guide sleeve is equipped with liquid return hole.
Further, the flow guide sleeve is that cross section is more than the cylindric of cylinder body, is internally provided with mantle cavity, and mantle cavity exists with setting
The liquid return hole of flow guide sleeve side is connected；The running-on at flow guide sleeve both ends is sleeved on the annular through-hole both sides in the middle part of cylinder body.
Further, the valve pool on the spool outer ring is equipped with chamfering.
The utility model has the beneficial effects that：By the combination of gas plug, cylinder body, spool and flow guide sleeve, spool is done
Accurate improvement has achieved the effect that production is easy, increases access times；Intrinsic safety full valve is wide using pressure limit, can bear
Super-pressure, small, simple in structure, reasonable design, easy operation, using flexible are more than rated pressure when industrial and mineral hypertonia
When, safety valve moves draining, plays the role of safeguard protection, and the effect of recycling environmental protection is also played for draining.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the valve core structure schematic diagram of the utility model.
Fig. 3 is the spool right view of the utility model.
Fig. 4 is the flow guide sleeve structural schematic diagram of the utility model.
In figure：1. 2. cylinder body of gas plug, 3. flow guide sleeve 3-1. liquid return hole 3-2. running-on 3-3. mantle cavities, 4. spool 4-
1. spool cavity 4-2. valve pool 4-3. stomatas.
Specific implementation mode
The specific implementation mode provided with reference to the accompanying drawings with utility model people makees a kind of safety valve of the utility model
It further describes：
Safety valve as shown in Figs 1-4, including gas plug 1, cylinder body 2 and spool 4,2 inside of cylinder body is penetrating cavity, and
Chuck is arranged in cavity inner wall；One end of cylinder body 2 is equipped with gas plug 1, and the other end is equipped with connector, and spool 4 is loaded in 2 inside of cylinder body
Between position, and be close to 2 chuck inner wall of cylinder body；And pass through sealing ring sealed valve core 4 and 2 gap of cylinder body；It is logical that 2 middle part of cylinder body sets annular
Hole；Gas plug 1 is composed of plug, hermetic seal, gaseous core, little spring, catch, snap ring；The threaded one end of plug and cylinder body 2 connects
It connects；Cavity is arranged in the side of the plug, is connected to outer by air admission hole, and is equipped with annular groove in cavity end inner wall；Gas
Air admission hole is inserted into core one end by plug cavity side, and junction is equipped with hermetic seal；It is inserted in spring, spring on the other side stock of gaseous core
Catch is withstood, snap ring is close to catch and is stuck in interior cavity groove；4 installation end of the spool is equipped with chamfering.It is set between cylinder body 2 and spool 4
Sealing ring is set, plug also is provided with sealing ring with 2 junction of cylinder body, and the joint of 2 one end of cylinder body is equipped with sealing ring, all sealings
Circle setting is provided to play the sealing function to gas；The spool 4 is in the form of a column, and one end is another equipped with spool cavity 4-1
End is equipped with cricoid stomata 4-3；The stomata 4-3 is connected with the valve pool 4-2 being arranged on 4 outer ring of spool；On the cylinder body 2
It is also cased with flow guide sleeve 3, flow guide sleeve 3 is equipped with liquid return hole 3-1；The flow guide sleeve 3 is that cross section is more than the cylindric of cylinder body 2,
It is internally provided with mantle cavity 3-3, mantle cavity 3-3 is connected with the liquid return hole 3-1 for being arranged in 3 side of flow guide sleeve；The running-on at 3 both ends of flow guide sleeve
3-2 is sleeved on the annular through-hole both sides at 2 middle part of cylinder body；Valve pool 4-2 on 4 outer ring of the spool is equipped with chamfering, when installing spool 4
Play the role of protecting 2 cavity of cylinder body, and facilitates being slidably installed for spool 4.
When using the utility model, the direction of cavity chuck is set from cylinder body 2, to being inserted into spool 4 in cylinder body 2, and with card
Platform is connected, and is arranged sealing ring between the two, after being inserted into spool 4, in 2 tail portion of cylinder body, installs gas plug 1, then by 3 sets of flow guide sleeve
It is covered in mantle cavity 3-3 on cylinder body 2, and by the annular through-hole on cylinder body 2, liquid return hole 3-1 and the fuel tank phase of the flow guide sleeve 3
The purpose that oil return recycles is realized in connection.
The utility model is illustrated by specific implementation process, in the case where not departing from the scope of the utility model,
Various transformation and equivalent substitute can also be carried out to the utility model patent, therefore, it is public that the utility model patent is not limited to institute
The specific implementation process opened, and should include the whole embodiments fallen into the utility model patent right.
Claims (3)
1. a kind of safety valve, including gas plug（1）, cylinder body（2）And spool（4）, internal cylinder body (2) is penetrating cavity, and in sky
Chuck is arranged in cavity wall；Annular through-hole is equipped in the middle part of cylinder body (2)；Spool (4) is loaded on cylinder body (2) bosom position, is close to
Cylinder body (2) chuck inner wall；And pass through sealing ring sealed valve core（4）With cylinder body（2）Gap；Gas plug（1）By plug, hermetic seal,
Gaseous core, little spring, catch, snap ring are composed；It is characterized in that, the spool（4）It is in the form of a column, one end is equipped with spool cavity
（4-1）, the other end is equipped with cricoid stomata（4-3）；The stomata（4-3）With setting in spool（4）Valve pool on outer ring（4-2）
It is connected；The cylinder body（2）On be also cased with flow guide sleeve（3）, flow guide sleeve（3）It is equipped with liquid return hole（3-1）.
2. a kind of safety valve according to claim 1, which is characterized in that the flow guide sleeve（3）Cross section be more than cylinder body
（2）It is cylindric, be internally provided with mantle cavity（3-3）, mantle cavity（3-3）With setting in flow guide sleeve（3）The liquid return hole of side（3-1）Phase
Connection；Flow guide sleeve（3）The running-on at both ends（3-2）It is sleeved on cylinder body（2）The annular through-hole both sides at middle part.
3. a kind of safety valve according to claim 1, which is characterized in that the spool（4）Valve pool on outer ring（4-2）If
There is chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114969.5U CN207829923U (en) | 2018-01-24 | 2018-01-24 | A kind of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114969.5U CN207829923U (en) | 2018-01-24 | 2018-01-24 | A kind of safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207829923U true CN207829923U (en) | 2018-09-07 |
Family
ID=63394318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820114969.5U Expired - Fee Related CN207829923U (en) | 2018-01-24 | 2018-01-24 | A kind of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207829923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953007A (en) * | 2019-12-11 | 2020-04-03 | 西安重装澄合煤矿机械有限公司 | Safety valve with flow guide device |
-
2018
- 2018-01-24 CN CN201820114969.5U patent/CN207829923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953007A (en) * | 2019-12-11 | 2020-04-03 | 西安重装澄合煤矿机械有限公司 | Safety valve with flow guide device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105298981B (en) | Safe and reliable derrick lifting Multi-stage cylinder | |
| CN202628024U (en) | Hyperpressure packer device | |
| CN203476280U (en) | Improved oil sleeve gas tightness detection packer | |
| CN110424920B (en) | Self-expanding antiscaling water injection packer | |
| CN204311997U (en) | A kind of pressure break reverse circulation valve | |
| CN207829923U (en) | A kind of safety valve | |
| CN201794552U (en) | Large-diameter fracturing packer | |
| CN107917115A (en) | A kind of fluid pressure type check valve | |
| CN202432032U (en) | Swing check valve | |
| CN207621439U (en) | Totally-enclosed steam flange form safety valve | |
| CN202338318U (en) | Separate-layer fracturing control device | |
| CN201068776Y (en) | Heavy pressure acidizing fracturing packer | |
| CN206233895U (en) | Water plugging of horizontal well process pipe string | |
| CN201428666Y (en) | Multi-stage hydraulic cylinder type packer | |
| CN202654586U (en) | Fire hydrant | |
| CN107917116A (en) | A kind of fluid pressure type check valve | |
| CN203594402U (en) | Oil tube plugging device | |
| CN204984389U (en) | But nothing of automatic control pressure boost throttle pressure differential staged fracturing tubular column | |
| CN201007192Y (en) | High pressure blowout prevention polish rod sealer | |
| CN201884704U (en) | Novel spherical valve with double block and drain structure | |
| CN205577922U (en) | Can force recovery type deep water sleeve pipe cutting means | |
| CN205936669U (en) | Stand with card key formula jar mouth dustproof mechanism | |
| CN2665354Y (en) | Dual tubing heat extraction wellhead | |
| CN205172516U (en) | Well head fracturing valve protection device | |
| CN205445975U (en) | Oil well oil gas in pit mixes suction pump |
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: 20180907 Termination date: 20210124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |