CN207687427U - High-pressure overflow valve - Google Patents
High-pressure overflow valve Download PDFInfo
- Publication number
- CN207687427U CN207687427U CN201721686361.1U CN201721686361U CN207687427U CN 207687427 U CN207687427 U CN 207687427U CN 201721686361 U CN201721686361 U CN 201721686361U CN 207687427 U CN207687427 U CN 207687427U
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- sealing
- spring
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- valve
- hole
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- 238000007789 sealing Methods 0.000 claims abstract description 81
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a high-pressure overflow valve, which comprises an end joint and a valve body, wherein the end joint is provided with a first interface, a first flow guide channel and a sealing cone part; the sealing cambered surface is arranged at one end of the valve rod, and the valve rod is also provided with a first retaining ring and a second retaining ring; the sealing slide hole is arranged on the valve body, and the valve body is also provided with a second connector, a liquid inlet hole, a first sealing groove and a mounting hole; one end of the valve rod, which is far away from the sealing cambered surface, penetrates through the connecting hole, the first sealing groove and the pressing ring and then is assembled and fixed with the spring front seat; the spring front seat is provided with a matching tightening groove and a first assembling bulge; the first assembling bulge is fixedly assembled with one end of the spring, the other end of the spring is fixedly assembled with the second assembling bulge, and the second assembling bulge is arranged on the spring rear seat; the front spring seat, the rear spring seat and the spring are all arranged in a resetting assembly hole, the resetting assembly hole is arranged on the supporting cylinder, and the supporting cylinder is also provided with a connecting screw hole; and an adjusting stud of the adjusting screw penetrates through the connecting screw hole and is assembled and fixed with the spring rear seat.
Description
Technical field
The utility model is related to a kind of overflow valves, more particularly to a kind of high-pressure overflow valve.
Background technology
Overflow valve is a kind of hydraulic pressure control valve, mainly plays level pressure overflow, voltage stabilizing in hydraulic test, and system is unloaded
Lotus and safeguard protection effect.
It is generally used in hyperbaric environment being pilot operated compound relief valve, and through type overflow valve is mainly used in low-voltage ring
Border.But if through type overflow valve is applied to hyperbaric environment, spool is easy to happen collision, to influence the spool longevity
Ordering and will produce ear-piercing strike note influences the use of operator.But the manufacturing cost of pilot operated compound relief valve is generally higher than straight
General formula overflow valve.And pilot operated compound relief valve sensitivity is generally below through type overflow valve.
Therefore, it is applicant's understanding that it is necessary to design a kind of high-pressure overflow valve, uses straight-through structure and can prevent
Spool impacts.
Utility model content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the utility model is to provide a kind of high pressures to overflow
Flow valve.
To achieve the above object, the utility model provides a kind of high-pressure overflow valve, including, end-fitting, valve body are described
End-fitting be equipped with first interface, the first flow-guiding channel, sealing wimble fraction, the sealing wimble fraction be equipped with sealing arc
Slot, the sealing arc slot are connected to the first flow-guiding channel, and the sealing arc slot and the assembly of sealing cambered surface, sealing；
Sealing cambered surface setting is additionally provided with the first baffle ring, the second baffle ring on valve rod (spool) one end, the valve rod, described
The first baffle ring and the second baffle ring between the first baffle ring, the first sealing ring be installed, first sealing ring, the first baffle ring are used
In will valve rod and sealing slide opening inner wall between seal；First baffle ring, the first sealing ring are made of elastic material, thus can be to valve
The impact that bar generates when moving is absorbed, and valve rod is prevented to be damaged.
The sealing slide opening is arranged on valve body, and second interface, inlet opening, the first sealing are additionally provided on the valve body
Slot, mounting hole, the inlet opening are used to second interface being connected to sealing slide opening；
The sealing slide opening is connected to the first seal groove by connecting hole, and valve rod passes through connection far from sealing cambered surface one end
It assembles and fixes with spring front stall after hole, the first seal groove, pressure ring；
The spring front stall is equipped with cooperation and holds out against slot, the first assembly protrusion；
The first assembly protrusion is fixed with spring one end assembly, the spring other end and the second assembly protrusion dress
With fixation, the described second assembly protrusion is arranged in spring back seat；
The spring front stall, spring back seat, spring, which are installed in, to be resetted in pilot hole, reset pilot hole setting
On support tube, connecting screw hole is additionally provided on the support tube；
The regulation stud of adjusting screw rod is fixed after passing through connecting screw hole with spring back seat assembly；The support drum outer wall point
It is not fixed with mounting hole and the assembly of dust-proof pilot hole.
The feed liquor bore dia is less than second interface diameter as a further improvement of the utility model,.
The cooperation holds out against slot and holds out against assembly side top with first on valve rod as a further improvement of the utility model,
It is closely assembled.
Second is additionally provided in the regulation stud hold out against assembly side as a further improvement of the utility model, it is described
Second hold out against assembly side and hold out against groove top with the cooperation in spring back seat and be closely assembled.
The dust-proof pilot hole is arranged on dust cap as a further improvement of the utility model, the adjusting
Screw rod end is fitted into the dust-proof inner cavity of dust cap.
Gasket seal, the gasket are installed in the first seal groove as a further improvement of the utility model,
Piece is used for the gap sealing between the first seal groove and valve rod.
As a further improvement of the utility model, the second stop nut is equipped on support drum outer wall.
It is equipped with the first stop nut in regulation stud as a further improvement of the utility model, described first
Stop nut is assembled with regulation stud by threaded engagement.
Second stop nut is equipped with trapezoidal with valve body contact endface as a further improvement of the utility model,
Slot, the dovetail groove is interior to be equipped with the second sealing ring, and second sealing ring is made of expanded rubber；The valve body exists
It is equipped with fitted seal slot with dovetail groove corresponding position.
The second sealing ring described in as a further improvement of the utility model, is in its unexpanded preceding end face without departing from trapezoidal
Slot open end；
Cutting groove is provided between valve body and the second stop nut, cutting groove end is coated with fluid sealant, and described is close
Cutting groove is closed in sealing.
The utility model has the beneficial effects that：
1, the utility model uses straight-through structure so that overall structure is fairly simple, and manufacturing cost is also relatively low, and right
The sensitivity of high pressure is higher, and the more existing pilot operated compound relief valve of overall performance will be got well.
2, the utility model is close using gasket seal and the first sealing ring, the first baffle ring, the two-way line face of the second baffle ring
Envelope can reduce the damage of core assembly (valve rod and sealing wimble fraction) simultaneously in enhancing leakproofness.
3, the Opening pressure of the utility model is adjustable, and the service life is longer, and use scope is wide.
4, the connection bore dia of the utility model is less than sealing slide opening diameter, and this design can prevent valve rod is anti-to go out.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of high-pressure overflow valve specific implementation mode of the utility model.
Fig. 2 is a kind of another structural schematic diagram of high-pressure overflow valve specific implementation mode of the utility model.
Fig. 3 is enlarged drawing at F1 in Fig. 2.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples：
Referring to Fig. 1-Fig. 3, a kind of high-pressure overflow valve, including, end-fitting 900, valve body 200, the end-fitting 900
It is equipped with first interface 901, the first flow-guiding channel 911, sealing wimble fraction 920, the sealing wimble fraction 920 is equipped with sealing
Arc slot 921, the sealing arc slot 921 are connected to the first flow-guiding channel 911, and the sealing arc slot 921 and sealing cambered surface
333 assembly, sealing；
The sealing setting of cambered surface 333 is additionally provided with the first baffle ring 331, second gear on 330 one end of valve rod, the valve rod 330
Ring 332 is equipped with the first baffle ring 820, the first sealing ring 830 between first baffle ring 331 and the second baffle ring 332, described
The first sealing ring, the first baffle ring for will valve rod 330 and sealing 202 inner wall of slide opening between seal；
The sealing slide opening 202 is arranged on valve body 200, be additionally provided on the valve body 200 second interface 220, into
Fluid apertures 221, the first seal groove 201, mounting hole 210, the inlet opening 221 are used for second interface 220 and sealing slide opening 202
Connection, and 221 diameter of inlet opening is less than 220 diameter of second interface, it is this to be designed with conducive to increasing is generated at inlet opening
Effect is pressed, to keep spool folding sensitiveer.
The sealing slide opening 202 is connected to the first seal groove 201 by connecting hole 203, and valve rod 300 is far from sealing cambered surface
333 one end are fixed after passing through connecting hole 203, the first seal groove 201, pressure ring 630 with the assembly of spring front stall 620；
The spring front stall 620 is equipped with cooperation and holds out against the assembly of slot 640, first protrusion 621, and the cooperation holds out against slot
640 hold out against assembly side 334 with first on valve rod 330 holds out against assembly；
The first assembly protrusion 621 is fixed with the assembly of 710 one end of spring, 710 other end of spring and second
Assembly protrusion 611 assembly fix, described second assembly protrusion 611 be arranged in spring back seat 610, the spring front stall and
Spring back seat structure is the same；
The spring front stall, spring back seat, spring, which are installed in, to be resetted in pilot hole 512, the reset pilot hole
512 are arranged on support tube 510, and connecting screw hole 511 is additionally provided on the support tube 510；
The regulation stud 320 of adjusting screw rod 310 is fixed after passing through connecting screw hole 511 with the assembly of spring back seat 610, described
Regulation stud 320 screws assembly by screw thread and connecting screw hole 511；
Be additionally provided with second in the regulation stud 320 and hold out against assembly side 321, described second hold out against assembly side 321 with
Cooperation in spring back seat 610 holds out against slot 640 and holds out against assembly.
In use, by by regulation stud 320 to the precession of spring direction so that spring back seat is by spring to spring front stall pressure
Tightly, this can increase the pressure for opening valve rod, Opening pressure that is on the contrary then can reducing opening valve rod.
510 outer wall of support tube is fixed with mounting hole 210 and the assembly of dust-proof pilot hole 110 respectively, it is preferable that described
510 outer wall of support tube pass through threaded engagement assembly with mounting hole 210 and dust-proof pilot hole 110 respectively and fix；
The dust-proof pilot hole 110 is arranged on dust cap 100, and 310 end of adjusting screw rod is packed into dust cap
In 100 dust-proof inner cavity 101.
It further, can be in the first seal groove in order to make to be sealed between connecting hole 203 and the first seal groove 201
Gasket seal 810 is installed, the gasket seal 810 is used for the gap sealing between the first seal groove and valve rod in 201.
Further, in order to limit the length that support tube is packed into mounting hole 210, the can be assembled on support drum outer wall
Two stop nuts 420, second stop nut 420 can limit support tube by the different location being fixed on support tube
The length being packed into mounting hole 210.The support drum outer wall is assembled with the first adjusting nut by threaded engagement.
Further, it is packed into the length resetted in pilot hole in order to limit regulation stud, can be assembled in regulation stud
First stop nut 410, first stop nut 410 are assembled with regulation stud by threaded engagement.
Fig. 1 is the state that this overflow valve is not opened, and Fig. 2 is the state that this overflow valve is opened.Detailed process is as follows, described
Second interface 220 is connected to overflow pipe, and the first interface is connected to relief sewer, when overflow overpressure is excessive,
Hydraulic pressure, which can enter in sealing slide opening, pushes valve rod that spring force is overcome to be moved to the left so as to seal cambered surface 333 and sealing arc slot 921
It no longer seals, at this point, gap of the fluid between sealing cambered surface 333 and sealing arc slot 921 flows out to from first interface, and passes through
Relief sewer is discharged.When hydraulic pressure at second interface restores normal, spring pushes valve rod to move right, until sealing cambered surface
It is assembled with sealing arc slot sealing.
Referring to Fig. 2-Fig. 3, dovetail groove 250, institute are equipped at second stop nut 420 and 200 contact face of valve body
Second sealing ring 840 is housed, second sealing ring is made of expanded rubber, can meet water in the dovetail groove 250 stated
Expanded rubber or oil swellable rubber；
The valve body is being equipped with fitted seal slot 421 with 250 corresponding position of dovetail groove；
Then the second stop nut and valve body are assembled in use, the second sealing ring is fitted into dovetail groove 250 first,
The last injection in dovetail groove or fitted seal slot 421 can make the water or oil that the second sealing ring expands, to make the second sealing ring
It expands, its general volume may expand 2-3 times before being, can be generated between dovetail groove and fitted seal slot so strong
Extruding, to further increase the leakproofness between the second stop nut and valve body 200, and anti-high pressure.
Further, the assembly between the second stop nut and valve body for convenience, second sealing ring is not swollen
Its end face is without departing from dovetail groove open end (one end being connected to fitted seal slot) before swollen.
Further, the second stop nut and valve body can be simply dismantled in order to facilitate the later stage, it can be in valve body and
Cutting groove 260 is set between two stop nuts.Such as since huge extruding force can not rotate after the expansion of the second sealing ring of later stage
Second stop nut and valve body can be cut off the second sealing ring across cutting groove by pocket knife, to which easy to disassemble second limits
Position nut and valve body.It, can be in the second sealing ring and dovetail groove and fitted seal of course for the taking-up for facilitating the second sealing ring
Coating lubricating oil or powdered lubricant on slot contact surface.
Further, foreign matters from being blocked cutting groove in order to prevent can smear fluid sealant 850 in cutting groove end, described
Fluid sealant 850 closes cutting groove.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of high-pressure overflow valve, including, end-fitting, valve body, it is characterized in that：The end-fitting connects equipped with first
Mouth, the first flow-guiding channel, sealing wimble fraction, the sealing wimble fraction are equipped with sealing arc slot, the sealing arc slot and the
One flow-guiding channel is connected to, and the sealing arc slot and the assembly of sealing cambered surface, sealing；Cambered surface is sealed to be arranged in valve rod one end；
It seals slide opening to be arranged on valve body, second interface, inlet opening, the first seal groove, mounting hole is additionally provided on the valve body,
The inlet opening is used to second interface being connected to sealing slide opening；
The sealing slide opening is connected to the first seal groove by connecting hole, valve rod far from sealing cambered surface one end pass through connecting hole,
It assembles and fixes with spring front stall after first seal groove, pressure ring；
The spring front stall is equipped with cooperation and holds out against slot, the first assembly protrusion；
The first assembly protrusion is fixed with spring one end assembly, and the spring other end and the second assembly protrusion assembly are solid
Fixed, the second assembly protrusion is arranged in spring back seat；
The spring front stall, spring back seat, spring, which are installed in, to be resetted in pilot hole, and reset pilot hole setting is being propped up
It supports on cylinder, connecting screw hole is additionally provided on the support tube；
The regulation stud of adjusting screw rod is fixed after passing through connecting screw hole with spring back seat assembly；The support drum outer wall respectively with
Mounting hole and the assembly of dust-proof pilot hole are fixed.
2. high-pressure overflow valve as described in claim 1, it is characterized in that：The feed liquor bore dia is less than second interface diameter.
3. high-pressure overflow valve as described in claim 1, it is characterized in that：The cooperation holds out against slot and is held out against with first on valve rod
Assembly side holds out against assembly.
4. high-pressure overflow valve as described in claim 1, it is characterized in that：It is additionally provided with second in the regulation stud and holds out against assembly
End, described second, which holds out against assembly side, holds out against groove top with the cooperation in spring back seat and is closely assembled.
5. high-pressure overflow valve as described in claim 1, it is characterized in that：The dust-proof pilot hole is arranged on dust cap, institute
The adjusting screw rod end stated is fitted into the dust-proof inner cavity of dust cap.
6. high-pressure overflow valve as described in claim 1, it is characterized in that：Gasket seal is installed in the first seal groove, it is described
Gasket seal be used for the gap sealing between the first seal groove and valve rod.
7. high-pressure overflow valve as described in claim 1, it is characterized in that：It is equipped with the second stop nut on support drum outer wall.
8. high-pressure overflow valve as described in claim 1, it is characterized in that：The first stop nut, institute are equipped in regulation stud
The first stop nut stated is assembled with regulation stud by threaded engagement.
9. high-pressure overflow valve as described in claim 1, it is characterized in that：The first baffle ring, second gear are additionally provided on the valve rod
Ring is equipped with the first baffle ring, the first sealing ring, first sealing ring, between first baffle ring and the second baffle ring
One baffle ring is used to seal between valve rod and sealing slide opening inner wall.
10. high-pressure overflow valve as claimed in claim 7, it is characterized in that：Second stop nut and valve body contact end face
Place is equipped with dovetail groove, the second sealing ring is housed in the dovetail groove, second sealing ring is made of expanded rubber；Institute
The valve body stated is being equipped with fitted seal slot with dovetail groove corresponding position；
Second sealing ring is in its unexpanded preceding end face without departing from dovetail groove open end；
Cutting groove is provided between valve body and the second stop nut, cutting groove end is coated with fluid sealant, the fluid sealant
Cutting groove is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721686361.1U CN207687427U (en) | 2017-12-07 | 2017-12-07 | High-pressure overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721686361.1U CN207687427U (en) | 2017-12-07 | 2017-12-07 | High-pressure overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687427U true CN207687427U (en) | 2018-08-03 |
Family
ID=62996399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721686361.1U Active CN207687427U (en) | 2017-12-07 | 2017-12-07 | High-pressure overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488796A (en) * | 2018-12-29 | 2019-03-19 | 武昌船舶重工集团有限公司 | A kind of high-pressure large-displacement relief valve |
-
2017
- 2017-12-07 CN CN201721686361.1U patent/CN207687427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488796A (en) * | 2018-12-29 | 2019-03-19 | 武昌船舶重工集团有限公司 | A kind of high-pressure large-displacement relief valve |
| CN109488796B (en) * | 2018-12-29 | 2020-08-18 | 武昌船舶重工集团有限公司 | High-pressure large-discharge safety relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 400700 15-1, No. 6, Fengqi Road, caijiagang Town, Beibei District, Chongqing Patentee after: CHONGQING JIUHUAN MACHINERY & ELECTRIC Co.,Ltd. Address before: 400000 No.1 Xinmao Road, Beibei District, Chongqing (Free Trade Zone) Patentee before: CHONGQING JIUHUAN MACHINERY & ELECTRIC Co.,Ltd. |