CN108202098A - Interior high pressure sealing is cut somebody's hair - Google Patents
Interior high pressure sealing is cut somebody's hair Download PDFInfo
- Publication number
- CN108202098A CN108202098A CN201810175272.3A CN201810175272A CN108202098A CN 108202098 A CN108202098 A CN 108202098A CN 201810175272 A CN201810175272 A CN 201810175272A CN 108202098 A CN108202098 A CN 108202098A
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- Prior art keywords
- hair
- somebody
- cut somebody
- hole
- high pressure
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
Abstract
The invention discloses a kind of interior high pressure sealings to cut somebody's hair, including：It cuts somebody's hair outside；Inside cut somebody's hair；Wherein, outer cut somebody's hair is equivalent to traditional sleeve type and cuts somebody's hair, it inside cuts somebody's hair and is equivalent to traditional taper and cuts somebody's hair, the two is integrated into a structure for being similar to hydraulic cylinder, the conical head that end has of inside cutting somebody's hair can form pipe nozzle reliable sealing, and avoid pipe nozzle bulging based on this constraint with outer inner wall cooperation of cutting somebody's hair.
Description
Technical field
The present invention relates to a kind of interior high pressures to cut somebody's hair, and is cut somebody's hair used in Internal High-pressure Forming Equipment.
Background technology
Internal high pressure forming is also hydroforming or Hydraulic shaping, is that one kind uses fluid as forming medium, passes through control
Interior pressure and material flow the material forming technique to reach shaped hollow part purpose.
Interior high-pressure molding is mainly used for pipe fitting（Pipe, square tube, shape tube etc., pipe fitting are known as pipe in moulding process）'s
Molding, corresponding Internal High-pressure Forming Equipment include mold, pressing device and Hydrodynamic unit, and usual mold includes mold and lower die
Tool forms mold cavity after being engaged at die joint.During processing, pipe is put into the cavity portion of lower mold, then transfers upper mold
Tool, and pipe is constrained in cavity.It is then within each one of pipe both ends and cuts somebody's hair to withstand pipe respective end, pipe axis is provided
Xiang Li, the axial force are used for feed supplement.
One of those or two cut somebody's hair with hydraulic inlet, swollen for generating pipe for being filled into pipe
The liquid of shape, so that the wall thickness of design is obtained, have the feed supplement described in epimere.The interior required liquid pressure ratio of high-pressure molding
It is larger, this requirement cut somebody's hair engaged with blank end caused by sealability it is higher.
In this it is found that fluid power is enough to be deformed pipe, that is to say, that there is very big pressure, thus, it cuts somebody's hair not
Pipe axial force is merely provided for, is provided outside the liquid with certain pressure intensity, also should be guaranteed that the sealing with pipe nozzle, this is close
The rank of envelope should be greater than being equal to the sealing grade that liquid pressure is allowed.If sealing grade is inadequate, shaping medium can be caused to lose
The defects of pressing, leading to insufficient pipe molding, corrugation, final product quality is unqualified in other words.
Common cut somebody's hair is found in Chinese patent literature CN104438540A, and so-called punch is to cut somebody's hair, and is set on punch
There is feeding device, the structure that punch is used to engage with blank end is the round platform for having circular conical surface, and circular conical surface partly probes into pipe
Base nozzle realizes engagement sealing based on pushing.Circular conical surface belongs to wedge structure, can generate the tension of axial thrust and radial direction,
Pipe nozzle can be caused stuck in mold cavity end so as to generate the bulging of pipe nozzle, when distending is bigger than normal, it is difficult to further
Pushing.In addition, bulging it is overproof need it is further to pipe nozzle modified, and increase the burden that perhaps handles.
In view of this, in some implementations, such as Chinese patent literature CN106734493A, it is required that pipe is entirely located in mould
Intracavitary, die cavity both ends are formed as guide hole, partly cut somebody's hair and are configured to the guide post for being guided on guide hole, and there is no wedge shape knots in this structure
Structure will not generate the tension of radial direction, however, the usual tube wall of pipe is relatively thin, nozzle end stress may result in nozzle when larger
Even flange, intractability of the nozzle defect in subsequent handling that wrinkle is larger.
In some implementations, end is cut somebody's hair using sheath structure, and blank end can be inserted in sheath structure, be easily formed
Sealing, but be still plane engagement between body bottom and the end of pipe, it can not solve the problems, such as blank end forming defect.
Invention content
In view of this, the purpose of the present invention is to provide one kind can effectively avoid at the time of molding blank end wrinkle
The interior high pressure sealing of defect or bulging defect is cut somebody's hair.
Embodiment according to the present invention provides a kind of interior high pressure sealing and cuts somebody's hair, including：
It cuts somebody's hair outside, which is the casing of one end closing, and the blind end of the casing is extrapolation headstock end, and closing
End is provided with the first flow for importing liquid；Wall surface is provided with a groove in the middle part of cannula cavity, which has casing axial direction
Given width；
It inside cuts somebody's hair, the axially guiding plunger in casing is formed in casing, which is provided with second flow channel and third stream
Road, wherein, the first end that second flow channel is cut somebody's hair in is connected to the first hole of interior side of cutting somebody's hair, and the first end and blind end are same
End；Third flow channel second end for cutting somebody's hair in is cut somebody's hair the second hole of side in being connected to, which has a conical head, and with set
Pipe nozzle position gap is formed between tube wall face；First hole is located at interior homonymy of cutting somebody's hair with the second hole；
Wherein, when first end is in blind end, at least the first hole is biased in the sleeve closure side of groove, impulse stroke of inside cutting somebody's hair
In, the first hole is gradually connected with the second hole by groove, is inside cut somebody's hair in the end stop of impulse stroke, the first hole and the second hole
It is axial in groove in casing.
Above-mentioned interior high pressure sealing is cut somebody's hair, and optionally, conical head is configured to：Conical head bottom is equipped with stopping table, the stopping table
The anchor ring of offer and pipe nozzle end joined.
Optionally, the angle of conical head busbar and axis is 5 ° ~ 10 °.
Optionally, the height of conical head is 0.215 ~ 0.247 times of pipe spout diameter.
Optionally, casing imports for pipe nozzle；
Sealing ring is equipped in the pipeline section of casing and the cooperation of pipe nozzle.
Optionally, it inside cuts somebody's hair equipped with left sealing ring and right sealing ring；
First hole and the second hole are between left sealing ring and right sealing ring；
In the impulse stroke cut somebody's hair inside, groove is between left sealing ring and right sealing ring.
Optionally, left sealing ring and right sealing ring are y-type seal ring.
Optionally, the seat end cut somebody's hair outside is configured to：The blind end cut somebody's hair outside axially connects an installing handle.
Optionally, first flow includes axial component, and axial component forms the central duct of installing handle；
Second flow channel further includes the radial component for being connected to axial component, so as to form liquid injection hole in the side of installing handle.
Optionally, the groove is using casing axis as the annular groove of axis.
Embodiment according to the present invention, the interior high pressure sealing provided cut somebody's hair tool there are one it is outer cut somebody's hair with one in cut somebody's hair,
It compared with existing cut somebody's hair, is equivalent to existing bushing type and cuts somebody's hair the assembly cut somebody's hair with taper, and interior cut somebody's hair and cut somebody's hair outside not
It is simple to combine.Specifically, it cuts somebody's hair outside and constructs a plunger case on the whole with interior cut somebody's hair, inside cut somebody's hair and form plunger, inside cut somebody's hair
First flow and second flow channel are provided with, two runners do not connect directly；Outer cut somebody's hair forms cylinder body, and there are one be used for tool in cylinder body
The groove that first flow is connected with second flow channel, connection are to cut somebody's hair to be fully finished when reaching given position inside, in other words, are inside pushed away
Head needs first to run could complete connecting for first flow and second flow channel to set a distance, should be first for pipe nozzle to set a distance
Phase is extrapolated under conditions of the constraint of inner wall, then the pushing based on conical head reliably pipe nozzle constrain in cut somebody's hair with outside
Between cutting somebody's hair.By the interior constraint cut somebody's hair and cut somebody's hair outside, pipe nozzle will not generate bulging, and comprehensive due to cutting somebody's hair inside and outside being based on
Clamp is closed, the sealing surface formed is more complicated, and sealing surface area is bigger, substantially increases sealability.
Description of the drawings
Fig. 1, which cuts somebody's hair to lead for interior high pressure sealing in one embodiment of the invention, cuts open structure diagram.
Fig. 2 is to cut somebody's hair and status diagram before fluid injection after pipe initial engagement in an embodiment.
Fig. 3 is to cut somebody's hair to be fully engaged rear status diagram with pipe in an embodiment.
Fig. 4 is the A portions enlarged drawing of Fig. 3.
Fig. 5 is extrapolation header structure schematic diagram.
In figure：1. screw hole, 2. installing handles, 3. liquid injection holes, 4. first flows, main body of cutting somebody's hair outside 5., 6. sealing rings, 7. second
Runner, 8. third flow channels, 9. grooves, main body of cutting somebody's hair in 10., 11. sealing rings, 12. stopping tables, 13. sealing rings, 14. chambers, 15.
Conical head, 16. pipes.
Specific embodiment
It is a kind of extrapolation header structure shown in figure with reference to Figure of description 5, outer similar to existing sleeve type is cut somebody's hair,
Relative to cutting somebody's hair outside traditional sleeve type, the length of outer main body 5 of cutting somebody's hair is longer, for cutting somebody's hair in receiving.
It cuts somebody's hair for interior, can be found in shown in attached drawing 1 main body 10 of cutting somebody's hair, cut somebody's hair on the whole with traditional taper
Compare similar.
Outer cut somebody's hair with interior cut somebody's hair all is revolving body, and correspondingly, the inner face cut somebody's hair outside is inner cylinder, and the interior main part cut somebody's hair
It is cylindrical structure to divide, and head end, that is, conical head shown in figure 15 is a frustum cone structure on the whole, and end portion has
Circle.
It is understood that for having the pipe fitting of determining axis, shaft forgings, there is end based on axis direction,
It is commonly referred to as circumferential around the direction of axis, axis direction is then referred to as axial direction, is then referred to as radially perpendicular to the direction of axis.
About cutting somebody's hair outside, referring to Figure of description 1 ~ 3 and 5, it is seen that its main part, i.e., outer main body of cutting somebody's hair shown in figure
5, it is the casing of one end closing, the structure is similar with the cylinder body of hydraulic cylinder, and one end that hydraulic cylinder opens is used to import
Piston rod, the other end are then the seat end oil cylinder seats in other words of cylinder body.Correspondingly, the blind end of casing is the seat end cut somebody's hair outside.
Unlike hydraulic cylinder, the first flow 4 for importing fluid is not to be opened in cylinder body and cylinder sleeve, but is opened in
The seat end cut somebody's hair outside.In this field in order to avoid movement interference, liquid injection hole 3 is usually opened in the side cut somebody's hair, therefore, for first
Runner 4, it includes two parts, i.e. axial component and radial component, and wherein axial component is a blind hole, have given depth,
Its depth will not be in generation position and movement when being mainly thought of as 3 piping of liquid injection hole interference.Radial component is then axial part
Divide the side for being communicated to and cutting somebody's hair, piping is carried out to pass through liquid injection hole 3.
In Fig. 1, wall surface is provided with a groove 9 in the middle part of cannula cavity of cutting somebody's hair outside determined by main body 5, the groove 9 in figure
It is the axis collinear of an annular groove, the axis of annular groove and main body 5 of cutting somebody's hair outside.For this kind of groove 9, major parameter is wide
Degree and depth, depthmeter therein is now based on the dimensions of radial direction, and width is then based on axial dimensions.
It is rotated in casing discounting for interior cut somebody's hair, annular groove can retain a part, such as 90 degree of fan annular groove.
In addition, in some implementations, groove 9 may have the state of certain helix angle or other curved arrangements,
Its width then according to usual method, is determined by a pair of of cell wall vertical join line.
Groove 9 is used as connectivity slot, under given conditions, to realize the company between second flow channel 7 and third flow channel 8 in Fig. 1
It is logical.Second flow channel 7 and third flow channel 8 are molded on interior cut somebody's hair.
It cuts somebody's hair about interior, as previously mentioned, it forms the axially guiding plunger in aforementioned casing, correspondingly, inside cuts somebody's hair and cover
Prismatic pair is formed between pipe.
As it can be seen that the interior upside cut somebody's hair is set side by side, there are two fluid apertures in Fig. 1, inside cut somebody's hair and are provided with second flow channel 7 and third stream
Road 8, wherein, the left end cut somebody's hair in of second flow channel 7 be connected in cut somebody's hair the fluid apertures positioned at the left side of upside, which is denoted as the
One hole, another fluid apertures are denoted as the second hole.Its pore-forming mode is also the pore-forming by the way of such as drilling, accordingly from the interior left side cut somebody's hair
End and upside, which pull out of hole, carries out pore-forming.
Right end in Fig. 1 that third flow channel 8 is cut somebody's hair in is connected to the second aforementioned hole.Obviously, it can be seen in fig. 2 that
Two runners 7 can not be connected directly with third flow channel 8, and needing to cut somebody's hair inside, it is complete to be realized at given position
Connection, this is similar with spool, i.e., realizes the keying of valve by the variation of position, generally speaking, cut somebody's hair and borrow shown in Fig. 1
The principle of 2/2-way valve is helped.And corresponding 2/2-way valve is hydraulic control 2/2-way valve, and only hydraulic control mouth is not required to
It is separately provided, but directly uses the pressure oil port in other words of first flow 4.
Wherein, in structure shown in fig. 1 and 4 it can be clearly seen that the interior second end cut somebody's hair have conical head 15, it is whole
For body, inside cutting somebody's hair, it is more similar to cut somebody's hair to traditional taper, and the nozzle of pipe 16 is carried out using the wedge principle of the conical surface
Sealing.Difference lies in an embodiment of the present invention, also there are cutting somebody's hair outside one, can be avoided by the reaction cut somebody's hair outside
The opening part of pipe 16 is by distending.
Correspondingly, as shown in figure 4, in figure as it can be seen that between conical head 15 and casing wall surface formed pipe nozzle position gap, pipe
The nozzle of base 16 is finally clamped in pipe nozzle position gap, can form good sealing.
In addition, the first hole is located at interior homonymy of cutting somebody's hair with the second hole, in Fig. 1, the first hole is cut somebody's hair upper inside with the second hole
Bus bar side.
About the position on cutting somebody's hair including the first hole and the second hole, the principle based on 2/2-way, shown in Fig. 2 is first
During beginning position, it is off between the first hole and the second hole（Perfect condition, and micro leakage nor affects on the interior work cut somebody's hair
Into）.
It in Fig. 2, inside cuts somebody's hair in left dead-centre position, at this point, being realized cut-off by the interior engagement cut somebody's hair with internal surface of sleeve pipe, such as
Preceding described, this cut-off is not required for accomplishing completely ending, generate micro leakage nor affect on the interior work cut somebody's hair into.
In the state of fig. 2, the first hole and the second hole are respectively positioned on the left side of groove 9, based on aforementioned principle it is found that
If groove 9 is sufficiently wide, the second hole can be in the state of fig. 2 in groove 9.Consider in terms of processing capacity, it should
Reduce processing capacity as far as possible, therefore, in a preferred embodiment, during original state shown in Fig. 2, the first hole and the second hole are equal
Positioned at the left side of groove 9 shown in Fig. 2.
During original state, if first flow 4 is passed through such as hydraulic oil or other kinds of interior bulging fluid, fluid filling
Full first flow and second flow channel, effective liquid level in left side of inside cutting somebody's hair depend on the aperture of first flow 4.It is assumed that first flow 4
Sectional area for 1 square centimeter, for interior high-pressure molding, Fluid pressure is usually in tens megapascal, then on 1 square centimeter
Area on can form the power of thousands of newton, can push in cut somebody's hair and move right.
It inside cuts somebody's hair once disengaging the contact with left closed bottom of cutting somebody's hair outside, hydraulic pressure effective area increases rapidly interior cut somebody's hair
Left side area, thrust further increase.
It inside cuts somebody's hair and continues to move right, the conical head 15 inside cut somebody's hair probes into 16 nozzle of pipe, starts the nozzle of extruded tube 16
Inner wall cuts somebody's hair for traditional taper, and the nozzle of pipe 16 can generate bulging, but in an embodiment of the present invention, be cut somebody's hair outside
The constraint of internal face, the bulging of 16 nozzle of pipe are suppressed.It inside cuts somebody's hair and continues to move to right and be squeezed into the nozzle of pipe 16.Due to pipe
The bulging of the nozzle of base 16 is suppressed, and the taper of conical head 15 can be relatively small, can be deeper insinuated into pipe 16, from
And the area in sealing engagement face can be greatly improved, improve sealing grade.
Work of inside cutting somebody's hair is into the process, and by taking structure shown in Fig. 2 as an example, the second hole connects first with groove 9, but the first hole is still
It is covered by internal surface of sleeve pipe, effective connect still can not be formed between the first hole and the second hole.As interior further work of cutting somebody's hair is into
One hole is gradually connected with groove 9, and connected surface area is increasing, until it is maximum, fully connect so as to fulfill the first hole and the second hole
Logical, fluid flows into pipe inner cavity by first flow 4, second flow channel 7 and third flow channel 8.
With the further engagement of conical head 15 and pipe 16, suffered reaction force is increasing, until and hydraulic pressure
Dynamic balance and stopping movement of cutting somebody's hair in making, it is right stop position to stop mobile position.
Since 15 taper of conical head is smaller, angle of friction is more than pressure angle, self-locking can be formed, so as to make the first hole and second
Stable connection is realized in groove 9 in hole.
It is understood that when fluid initially enters pipe inner cavity, since intracavity liquid is less, inside cut somebody's hair in fig. 2
Right end can't be by hydraulic coupling.
In aforementioned structure, in order to ensure that interior cut somebody's hair has determining right stop, in structure shown in Fig. 4, inside push away
Head main body 10 is cylinder, and conical head 15 is frustum cone structure, and the outsole diameter of round platform is less than the diameter of cylinder, when conical head 15
Outsole and cylinder a bottom surface it is coplanar, and during coaxial line, stopping table 12 as shown in Figure 1 can be formed, and determine
The table top of stopping table 12 gone out is an annular surface.Stopping table 12 is used to accept the end face of pipe 16, so as to so that left stop
With determining position.
Stopping table 12 determines that anchor ring is identical with the end face ring geometry of pipe 6.
It cuts somebody's hair compared to traditional taper, in an embodiment of the present invention, the busbar of conical head 15 and the angle of axis are
5 ° ~ 10 °, less than the taper that traditional taper is cut somebody's hair, larger sealing engagement face can be obtained.It is related to sealing engagement face, only
Second level sealing is formed at mouth platform 12.And then the gabarit of the internal face cut somebody's hair outside and 16 nozzle of pipe forms third level sealing, from
And form reliable sealing.
For round platform, height refers to the distance at two bottom, and the height of conical head 15 is 16 spout diameter of pipe
0.215 ~ 0.247 times, the factor considered is that its height is adapted, and in impulse stroke relatively with the interior impulse stroke cut somebody's hair
Under conditions of small, the taper of aforementioned conical head 15 is adapted to, conical head 15 is needed to have given height, is realized to pipe 16
Reliable grip.
Further, in order to improve sealability, in structure shown in Fig. 4, casing imports for 16 nozzle of pipe, into
And the pipeline section in casing and the cooperation of 16 nozzle of pipe is equipped with sealing ring 13.
It shown in Fig. 1 ~ 3, is inside cutting somebody's hair equipped with left sealing ring and right sealing ring, left and right herein is only used for two technology spies
The differentiation of sign, subsequent content have the explanation for determining construction.
In Fig. 1, the first hole and the second hole are between left sealing ring and right sealing ring, 6 He of sealing ring as shown in Figure 1
Sealing ring 11.
In the impulse stroke cut somebody's hair inside, groove 9 is between left sealing ring and right sealing ring.
Left sealing ring and right sealing ring are y-type seal ring, in addition, about sealing ring 13, also using y-type seal ring.Y types
The section of sealing ring is Y-shaped, is a kind of typical lip-type packing.It is widely used in reciprocating dynamic seal device, uses the longevity
Life is higher than O-ring seal.The applicable operating pressure of y-type seal ring is not more than 40MPa, and operating temperature is -30~80 DEG C.
In the construction shown in fig. 1, the seat end cut somebody's hair outside is configured to：The blind end cut somebody's hair outside axially connects an installing handle
2, for the installation on hydraulic test of cutting somebody's hair.About this structure, traditional assembling knot cut somebody's hair with hydraulic test may be used
Structure, details are not described herein.
Claims (10)
1. a kind of interior high pressure sealing is cut somebody's hair, which is characterized in that including：
It cuts somebody's hair outside, which is the casing of one end closing, and the blind end of the casing is extrapolation headstock end, and closing
End is provided with the first flow for importing liquid；Wall surface is provided with a groove in the middle part of cannula cavity, which has casing axial direction
Given width；
It inside cuts somebody's hair, the axially guiding plunger in casing is formed in casing, which is provided with second flow channel and third stream
Road, wherein, the first end that second flow channel is cut somebody's hair in is connected to the first hole of interior side of cutting somebody's hair, and the first end and blind end are same
End；Third flow channel second end for cutting somebody's hair in is cut somebody's hair the second hole of side in being connected to, which has a conical head, and with set
Pipe nozzle position gap is formed between tube wall face；First hole is located at interior homonymy of cutting somebody's hair with the second hole；
Wherein, when first end is in blind end, at least the first hole is biased in the sleeve closure side of groove, impulse stroke of inside cutting somebody's hair
In, the first hole is gradually connected with the second hole by groove, is inside cut somebody's hair in the end stop of impulse stroke, the first hole and the second hole
It is axial in groove in casing.
2. interior high pressure sealing according to claim 1 is cut somebody's hair, which is characterized in that conical head is configured to：Conical head bottom is set
There is stopping table, the anchor ring which provides and pipe nozzle end joined.
3. interior high pressure sealing according to claim 2 is cut somebody's hair, which is characterized in that the angle of conical head busbar and axis is 5 °
~10°。
4. the interior high pressure sealing according to Claims 2 or 3 is cut somebody's hair, which is characterized in that the height of conical head is pipe nozzle
0.215 ~ 0.247 times of internal diameter.
5. the interior high pressure sealing according to Claims 2 or 3 is cut somebody's hair, which is characterized in that casing imports for pipe nozzle；
Sealing ring is equipped in the pipeline section of casing and the cooperation of pipe nozzle.
6. cut somebody's hair according to any interior high pressure sealing of claim 1 ~ 3, which is characterized in that inside cut somebody's hair equipped with left sealing ring
With right sealing ring；
First hole and the second hole are between left sealing ring and right sealing ring；
In the impulse stroke cut somebody's hair inside, groove is between left sealing ring and right sealing ring.
7. interior high pressure sealing according to claim 6 is cut somebody's hair, which is characterized in that left sealing ring and right sealing ring are Y types
Sealing ring.
8. cut somebody's hair according to any interior high pressure sealing of claim 1 ~ 3, which is characterized in that the seat end cut somebody's hair outside is configured to：
The blind end cut somebody's hair outside axially connects an installing handle.
9. interior high pressure sealing according to claim 8 is cut somebody's hair, which is characterized in that first flow includes axial component, and
Axial component forms the central duct of installing handle；
Second flow channel further includes the radial component for being connected to axial component, so as to form liquid injection hole in the side of installing handle.
10. cut somebody's hair according to any interior high pressure sealing of claim 1 ~ 3, which is characterized in that the groove is with quill
Line is the annular groove of axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175272.3A CN108202098B (en) | 2018-03-02 | 2018-03-02 | Internal high pressure sealing push head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175272.3A CN108202098B (en) | 2018-03-02 | 2018-03-02 | Internal high pressure sealing push head |
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| Publication Number | Publication Date |
|---|---|
| CN108202098A true CN108202098A (en) | 2018-06-26 |
| CN108202098B CN108202098B (en) | 2023-04-11 |
Family
ID=62605671
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810175272.3A Active CN108202098B (en) | 2018-03-02 | 2018-03-02 | Internal high pressure sealing push head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821959A (en) * | 2019-02-14 | 2019-05-31 | 佛山市南海兴迪机械制造有限公司 | A kind of push top for high-pressure molding technique in Large Diameter Pipeline |
| CN111014416A (en) * | 2019-12-26 | 2020-04-17 | 哈尔滨工大海卓智能成形科技有限公司 | Internal and external constraint type pipe liquid filling pressing sealing device and method |
| CN111014416B (en) * | 2019-12-26 | 2021-05-11 | 哈尔滨工大海卓智能成形科技有限公司 | Internal and external constraint type pipe liquid filling pressing sealing device |
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| CN108202098B (en) | 2023-04-11 |
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