CN109751436A - The sealing structure of Combined valve - Google Patents
The sealing structure of Combined valve Download PDFInfo
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- CN109751436A CN109751436A CN201910075919.XA CN201910075919A CN109751436A CN 109751436 A CN109751436 A CN 109751436A CN 201910075919 A CN201910075919 A CN 201910075919A CN 109751436 A CN109751436 A CN 109751436A
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- valve block
- sealing
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- nozzle
- sealing structure
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- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention discloses a kind of sealing structure of Combined valve, the endface between the adjacent valve block being applied in combination is arranged in sealing structure, and cylinder is arranged at high pressure pipe mouth and seals, flat seal is arranged in low pressure nozzle.Since the connection of two adjacent valve blocks needs while penetrating through oil inlet pipe and two nozzles of oil return pipe, the thus connector for joint that the present invention uses cylinder to seal at high pressure pipe mouth (oil inlet pipe), and the sealing ring of flat seal is used only at low pressure nozzle (oil return pipe), both it had avoided while using assembly difficulty caused by two cylinder sealed connecting components, it also avoids that the requirement of craftsmanship and leakproofness can be met simultaneously using high pressure oil seepage caused by two flat seals simultaneously simultaneously.
Description
Technical field
The present invention relates to hydraulic valve technology, especially a kind of sealing structure of Combined valve.
Background technique
Combined valve is widely used in the field of hydraulic control of various engineering machinery, industrial machinery and agricultural machinery.With
The increase for needing to control hydraulic device quantity can reduce the processing and manufacturing difficulty of single valve using Combined valve, to be formed
Standardized production reduces the cost manufactured with inventory's stock, and has preferable scalability, is suitable for new equipment and researches and develops
Or the upgrading of matured product improves.Flat seal mode is generally used between existing Combined valve, due to valve body oil inlet pipe
The liquid of place's circulation is in high pressure conditions, therefore is easy oil leak using flat seal herein.
Summary of the invention
The disadvantages of being easy oil leak existing for sealing structure of the applicant for above-mentioned existing Combined valve, provides one kind
Different sealing structure is arranged in different zones, to effectively avoid using plane in the sealing structure of structurally reasonable Combined valve
High pressure oil leakage scenarios caused by sealing element.
The technical solution adopted in the present invention is as follows:
A kind of sealing structure of Combined valve, the endface between the adjacent valve block being applied in combination is arranged in sealing structure, in height
Cylinder is arranged at pressure pipe mouth to seal, flat seal is arranged in low pressure nozzle.
As a further improvement of the above technical scheme:
The high pressure pipe mouth of each valve block end face is equipped with stepped hole, and two neighboring valve block is at the stepped hole of high pressure pipe mouth using two-way
Seal nipple is attached to form cylinder sealing.
The valve block of outermost end is attached to form cylinder sealing using one-way sealing connector at the stepped hole of high pressure pipe mouth.
The outer peripheral surface of the two way seal connector is equipped with two seals slot, is nested with sealing ring in seal groove.
The outer peripheral surface for stating one-way sealing connector is equipped with a road sealing groove, is nested with sealing ring in seal groove.
It is equipped with gasket groove at the low pressure nozzle of each one side end face of valve block, sealing ring is set in gasket groove.
Beneficial effects of the present invention are as follows:
Since oil inlet liquid in pipe is in high pressure conditions (usually 16 ~ 31.5MPA), the present invention includes the height between each valve block
Two way seal connector is set at pressure pipe mouth (oil inlet nozzle), connects the two sections of oil inlet pipes in front and back using two way seal connector, passes through column
Surface seal structure makes line connection have the sealing effect for being preferably directed to high pressure pipe mouth.Due in oil return nozzle at liquid
In low-pressure state (usually within 5Mpa), the present invention includes one of low pressure nozzle (oil return nozzle) junction between valve block
Planar seal ring is set on side end face, meets the seal request of low pressure nozzle.Since the connection of two adjacent valve blocks needs together
Shi Guantong oil inlet pipe and two nozzles of oil return pipe, thus the present invention is connected at high pressure pipe mouth (oil inlet pipe) using the connector that cylinder seals
Fitting, and the sealing ring of flat seal is used only at low pressure nozzle (oil return pipe), both avoided while being sealed using two cylinders
Assembly difficulty caused by connector, while also avoiding simultaneously using high pressure oil seepage caused by two flat seals, it can
To meet the requirement of craftsmanship and leakproofness simultaneously.
Fixation hole provided around high pressure pipe mouth (oil inlet pipe) of the present invention is more than the fixation around low pressure nozzle (oil return pipe)
Hole is arranged more fixation hole on the oil inlet nozzle periphery of high pressure, the leakproofness of oil inlet pipe can be effectively ensured, in the oil return of low pressure
Less fixation hole is arranged in nozzle periphery, also can satisfy the seal request of low pressure nozzle.Fixation hole can be between each valve block
Each valve block is connected into an entirety by bolt by the bolt hole being correspondingly arranged, easy to operate, and can guarantee to seal
Precision；Fixation hole is also possible to part valve block setting threaded hole, and part is arranged bolt hole, will be provided with bolt hole by bolt
Valve block is connected in the valve block of setting threaded hole, finally connects into an overall structure.Bolt hole, bolt and nut are respectively positioned on valve
The inside of block will not be impacted to external element is arranged in, and practicability is good.Fastener is set up directly on oil inlet by the present invention
Nozzle or fuel-displaced nozzle periphery, rather than the four corners in valve body are simply provided, both the inside of reasonable utilization valve body was empty
Between, while coupling mechanism force can also be provided with line up sealing device, fastener caused by avoiding frequent charge and discharge hydraulic coupling from changing is dynamic
State fatigue loosens, and effectively increases the sealing effect and reliability of equipment.
Detailed description of the invention
Fig. 1 uses disassembly diagram for embodiment one.
Fig. 2 is the perspective view of basic valve block.
Fig. 3 is the perspective view for extending valve block.
Fig. 4 is the perspective view of two way seal connector.
Fig. 5 is the perspective view of one-way sealing connector.
Fig. 6 is the cross-sectional view of embodiment one.
Fig. 7 is the cross-sectional view of embodiment three.
Fig. 8 is the perspective view of transition block.
Fig. 9 uses disassembly diagram for example IV.
Figure 10 is the perspective view of chip valve block.
In figure: 1, basic valve block；2, valve block is extended；3, oil inlet pipe；4, oil return pipe；5, oil inlet nozzle；6, oil return nozzle；7,
Two way seal connector；8, seal groove；9, gasket groove；10, valve opening；11, threaded hole；12, bolt hole；13, counterbore；14, sealing ring；
15, one-way sealing connector；16, transition block；17, chip valve block.
Specific embodiment
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment one:
As shown in Figure 1 and Figure 2, basic valve block 1 is equipped with oil inlet pipe 3 and oil return pipe 4 in inside, and oil inlet pipe 3 and oil return pipe 4 run through valve
Block body, and oil inlet nozzle 5 and oil return nozzle 6 are formed in valve block both ends of the surface.Step is equipped at the oil inlet nozzle 5 of two sides
Hole is equipped with gasket groove 9 at the oil return nozzle 6 of basic 1 one side end face of valve block, and another side end face does not set gasket groove 9.Sealing ring 14
It is arranged in gasket groove 9, for being sealed to 6 junction of oil return nozzle.Several valve openings are set inside basic valve block 1
10, it is used to form oil circuit or installation inserted valve.Inserted valve is connected with each pipeline of oil inlet pipe 3, oil return pipe 4 and composition oil circuit,
Each oil communication or closing are controlled at work.Several threaded holes 11, the present embodiment are equipped on the end face of basic valve block 1
It is five, two of them are arranged between oil inlet nozzle 5 and oil return nozzle 6, and in 5 outside of oil inlet nozzle, one is set for two settings
It sets in 6 outside of oil return nozzle.
As shown in figure 3, concatenated oil inlet pipe 3 corresponding with basic valve block 1 and oil return pipe 4 are equipped with inside extension valve block 2, two
Stepped hole is equipped at the oil inlet nozzle 5 of side.Gasket groove 9 is equipped at the oil return nozzle 6 of extension 2 one side end face of valve block, it is another
Side end face does not set gasket groove 9.Two two junctions between extension valve block 2 and basic valve block 1 or adjacent extension valve block 2 are corresponding to be contained
One gasket groove 9.Sealing ring 14 is arranged in gasket groove 9, for being sealed to 6 junction of oil return nozzle.In extension valve block 2
The valve opening 10 of several installation inserted valves of inside setting and each pipeline for forming oil circuit.
Extension valve block 2 end face on be equipped with several bolts hole 12, the present embodiment be five, two of them setting into
Between oil pipe mouth 5 and oil return nozzle 6, two settings are in 5 outside of oil inlet nozzle, and a setting is in 6 outside of oil return nozzle.Such as Fig. 6
Shown, the bolt hole 12 extended in valve block 2 is corresponding with the position of threaded hole 11 in basic valve block 1, and the perforation of bolt hole 12 is expanded
2 ontology of valve block is opened up, the both ends of bolt hole 12 are counterbore 13.It locks, makes with threaded hole 11 after the bolt passing through bolt hole 12 of adapted
Basic valve block 1 and extension valve block 2 are cascaded.If 2 quantity of extension valve block of 1 side of basic valve block is two or more, adopt
The length of bolt will run through two or more extension valve blocks 2 corresponding thereto.
As shown in figure 4, the setting of two way seal connector 7 of the invention is between extension valve block 2 and basic valve block 1 or adjacent
In the stepped hole for extending the oil inlet nozzle 5 between valve block 2, for being sealed to 5 junction of oil inlet nozzle.Two way seal connector
7 be round set, and twice annular seal groove 8 is equipped on the outer peripheral surface of circle set, is nested with sealing ring (in figure not in seal groove 8
Show), two adjacent oil inlet nozzles 5, the jointing as the two are sealed respectively.Two way seal connector 7 of the invention exists
Cylinder sealing is carried out at two oil inlet nozzles 5, and the highly pressurised liquid leakage of oil inlet pipe can be effectively prevented.
As shown in figure 5, one-way sealing connector 15 of the invention is arranged at the outermost end oil inlet nozzle 5 of combination valve block, it is single
It is round set to seal nipple 15, length is the half of two way seal connector 7.The platform of one-way sealing connector 15 and oil inlet nozzle 5
Rank hole is adapted, and the periphery of one-way sealing connector 15 is equipped with one of annular seal groove 8, is nested with sealing ring in seal groove 8, unidirectionally
Seal nipple 15 carries out cylinder sealing to oil inlet nozzle 5.
The Combined valve of the present embodiment determines used basic valve block 1 and extension valve at work, according to operative scenario
Block 2, as used a basic valve block 1 and two extension valve blocks 2 in the present embodiment, combination is two extension valve block 2 series connection
In the two sides of basic valve block 1.As shown in Figure 1, two extension valve blocks 2 are individually positioned in the two sides of basic valve block 1, valve block it
Between oil inlet nozzle 5 at place two way seal connector 7, there are a face embedding sealing circles 14 of gasket groove 9 at oil return nozzle 6, so
The oil inlet nozzle 5 of adjacent valve block is docked to the two way seal connector 7 for filling in protrusion afterwards, extends the disengaging oil oil of valve block 2 at this time
1 serial communication of road and basic valve block.As shown in fig. 6, the threaded hole 11 at 1 both ends of basic valve block and the bolt hole 12 of extension valve block 2
Coaxially, the screw rod of bolt is inserted into bolt hole 12 and fixed with threaded hole 11 and locked, in the head merging counterbore 13 of bolt, make base
Plinth valve block 1 and extension valve block 2 closely connect and realize that the oil circuit between adjacent valve block seals.
Embodiment two:
In the present embodiment, it is not provided with screw thread in basic valve block 1, but the through-hole of perforation is set on the position.Had using both ends
The through-hole of bar the perforation entire basic valve block 1 and extension valve block 2 of screw thread, and use nut check at bar both ends, can also be with
Realize fastening requirements.Stay bolt can certainly be used, the other end is locked using nut.
Embodiment three:
As shown in Figure 7 and Figure 8, the Combined valve of embodiment one, which is additionally provided with, realizes big specification valve block and small dimension valve block variable diameter group
The transition block 16 for closing connection, in the extension valve block 2 of the outside of the basic valve block 1 of big specification connection small dimension in the present embodiment, two
It is connected between person using transition block 16, transition block 16 connects the oil inlet nozzle 5 of one end of big specification valve block and the position of oil return nozzle 6
It sets suitable with the oil inlet nozzle 5 and oil return nozzle 6 of big specification valve block with caliber；The oil inlet nozzle 5 of the other end and small dimension valve block
Quite with oil return nozzle 6, the gasket groove arranged at the two way seal connector 7 and oil return nozzle 6 placed at oil inlet nozzle 5
9, sealing ring 14 is identical as above embodiments.Pass through stepped hole, bellmouth, the staggeredly change of the realization such as hole diameter inside transition block 16
Diameter, to realize the target of the valve block variable diameter combination of different size.As shown in figure 8, being equipped on the end face of transition block 16 several
The bolt hole 12 of a perforation is connect by bolt with the basic valve block 1 of big specification；It is located at extension 2 side of valve block in transition block 16
End face on be provided with several threaded holes 11, pass through the extension valve block 2 of bolt and small dimension connect.
Example IV:
As shown in Figure 9, Figure 10, Combined valve can also be composed of several chip valve blocks 17,17 both ends of the surface of chip valve block
Oil inlet nozzle 5 at be equipped with stepped hole, two way seal connector 7 of the invention is arranged between two adjacent chip valve blocks 17
Oil inlet nozzle 5 stepped hole in, for being sealed to 5 junction of oil inlet nozzle.In the oil return nozzle 6 one of chip valve block 17
Gasket groove 9 is set on side end face, is not provided with gasket groove 9 on corresponding another side end face.Sealing ring is provided in gasket groove 9
14, for being sealed to 6 junction of oil return nozzle.Several bolts hole 12 are provided on the end face of chip valve block 17, into
Bolt hole 12 around oil pipe mouth 5 is more than the bolt hole 12 around oil return nozzle 6.It is surrounded in the present embodiment for three bolts hole 12
Oil inlet nozzle 5 is radially arranged, one of them is located at 5 top of oil inlet nozzle, other two is located at oil inlet nozzle 5 and two
Between the oil return nozzle 6 of side.As shown in Figure 10,12 position of bolt hole in adjacent chip valve block 17 is corresponding, and the two of bolt hole 12
End is counterbore 13, locks adjacent chip valve block 17 after the bolt passing through bolt hole 12 of adapted, chip valve block 17 is made to be connected on one
It rises, if the quantity of chip valve block 17 is two or more, the bolt length of use will be corresponding to it, through all chip valve blocks
17。
Above description is explanation of the invention, is not intended to limit the invention, without departing from the spirit of the invention,
The present invention can make any type of modification.
Claims (6)
1. a kind of sealing structure of Combined valve, it is characterised in that: sealing structure is arranged between the adjacent valve block being applied in combination
Endface, at high pressure pipe mouth be arranged cylinder seal, low pressure nozzle be arranged flat seal.
2. the sealing structure of Combined valve described in accordance with the claim 1, it is characterised in that: the high pressure pipe mouth of each valve block end face
Equipped with stepped hole, two neighboring valve block is attached to form column at the stepped hole of high pressure pipe mouth using two way seal connector (7)
Face sealing.
3. the sealing structure of Combined valve described in accordance with the claim 1, it is characterised in that: the valve block of outermost end is in high pressure pipe mouth
Stepped hole at using one-way sealing connector (15) be attached to be formed cylinder sealing.
4. the sealing structure of Combined valve according to claim 2, it is characterised in that: the two way seal connector (7)
Outer peripheral surface is equipped with two seals slot (8), is nested with sealing ring in seal groove (8).
5. the sealing structure of Combined valve described in accordance with the claim 3, it is characterised in that: state the outer of one-way sealing connector (15)
Circumferential surface is equipped with a road sealing groove (8), is nested with sealing ring in seal groove (8).
6. the sealing structure of Combined valve described in accordance with the claim 1, it is characterised in that: the low pressure of each one side end face of valve block
Gasket groove (9) are equipped at nozzle, sealing ring (14) are set in gasket groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075919.XA CN109751436A (en) | 2019-01-25 | 2019-01-25 | The sealing structure of Combined valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075919.XA CN109751436A (en) | 2019-01-25 | 2019-01-25 | The sealing structure of Combined valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109751436A true CN109751436A (en) | 2019-05-14 |
Family
ID=66404877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910075919.XA Pending CN109751436A (en) | 2019-01-25 | 2019-01-25 | The sealing structure of Combined valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109751436A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326737Y (en) * | 2008-12-29 | 2009-10-14 | 中国第一重型机械股份公司 | Slotless sealing structure between planes |
| EP2824335A1 (en) * | 2013-05-29 | 2015-01-14 | Bomar S.A. | Multifunctional modular hydraulic valve block assembly |
| CN205639136U (en) * | 2016-05-06 | 2016-10-12 | 福州德格索兰机械有限公司 | Manual two return circuits hydraulic power station valve block structure |
| CN209540116U (en) * | 2019-01-25 | 2019-10-25 | 鼎斯（上海）液压科技有限公司 | The sealing structure of Combined valve |
-
2019
- 2019-01-25 CN CN201910075919.XA patent/CN109751436A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326737Y (en) * | 2008-12-29 | 2009-10-14 | 中国第一重型机械股份公司 | Slotless sealing structure between planes |
| EP2824335A1 (en) * | 2013-05-29 | 2015-01-14 | Bomar S.A. | Multifunctional modular hydraulic valve block assembly |
| CN205639136U (en) * | 2016-05-06 | 2016-10-12 | 福州德格索兰机械有限公司 | Manual two return circuits hydraulic power station valve block structure |
| CN209540116U (en) * | 2019-01-25 | 2019-10-25 | 鼎斯（上海）液压科技有限公司 | The sealing structure of Combined valve |
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