CN105276317B - Connection parts and combination device that pressure hose is used cooperatively with it - Google Patents
Connection parts and combination device that pressure hose is used cooperatively with it Download PDFInfo
- Publication number
- CN105276317B CN105276317B CN201510803460.2A CN201510803460A CN105276317B CN 105276317 B CN105276317 B CN 105276317B CN 201510803460 A CN201510803460 A CN 201510803460A CN 105276317 B CN105276317 B CN 105276317B
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- Prior art keywords
- half cone
- cone valve
- conical surface
- joint
- ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/222—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the external piece comprising segments pressed against the hose by wedge shaped elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
Abstract
The invention discloses connection parts and combination device that pressure hose is used cooperatively with it, its pipeline component for belonging to machinery industry hydraulic/pneumatic system.It solves the problems, such as existing withhold hose assembly complex manufacturing technology, quality control difficulties, withhold that position fault rate is high, joint has throttling and turbulent flow, joint core and Hose Jacket cannot be reused, use cost is high.It mainly includes taper joint 1, stop nut 2, lock screw 3, counterbored outer ring 4, half cone valve 5, body 6, sealing ring 7, stepped inner ring 8.When lock screw 3 is gradually screwed in taper joint 1 by screw thread, the conical opening internal conical surface of body is pressed in the outer conical surface of taper joint by half cone valve 5, reaches the purpose of crush seal.Present invention is mainly used for engineering machinery hydraulic pipe-line system, it can also be used to other fluid piping systems.
Description
Technical field
The invention belongs to the pipeline component of machinery industry hydraulic/pneumatic system, more particularly to construction machinery hydraulic system
High-pressure hose and its connection parts.
Background technology
It is well known that the Leakage of construction machinery hydraulic system is always the problem for perplexing industry, and its mesohigh is soft
The oil leak of pipe occupies the overwhelming majority, is the most weak link of reliability in whole hydraulic system, and maintenance is changed frequent, not only carried
The use cost of user high, also pollutes environment, serious it is possible that body pull-off causes the malignant event of people's injures and deaths.
Hose assembly is generally divided into attaching type and detachable, and Demountable is difficult to ensure that because of sealing and quality
（《Mechanical design handbook》.20-677 pages of 1.2.5 hose coupling of-hydraulic drive chapter 8 hydraulic pressure auxiliary member and hydraulic power unit,
2004 editions separate edition Cheng great Xian chief editors of Chemical Industry Press）, therefore the engineering machinery high-pressure hose of prior art is substantially all
Using attaching type structure, as shown in figure 1, joint core X, body G, Hose Jacket T are withheld and linked together using crimping equipment, it is soft
Annular groove is set on pipe sleeve and joint core and (withholds tooth）, snap-in force is withheld so as to improve anti-pulling-and-doffing performance energy to tube wall to strengthen.With
Although upper technology comparative maturity, still suffers from the following obvious deficiency for being difficult to and overcoming：1st, complex manufacturing technology, withholds quality control
System is difficult：The amount of withholding is excessive to be easy to damage body steel wire and glue-line, and joint core tube wall is easily longitudinally collapsed；The amount of withholding is too small again
Influence sealing effectiveness, and use the easy pull-off of middle tube body；2nd, the latus rectum of joint core is less than pipe body drift diameter, and joint area has section
Stream, is easy to produce turbulent energy loss at variable cross-section；3rd, there is polygon effect in the place of withholding, and withhold the footpath of the border of position body one
It is not equally distributed to decrement, the position decrement positioned at polygon wedge angle is less than normal, and inboard wall of tube body is easy to be produced herein
Raw gauffer, causes oil leak；4th, joint core, Hose Jacket cannot be reused, and cause the wasting of resources, and the maintenance for also increasing user makes
Use cost.The technical deficiency due to more than, causes engineering machinery that the high-pressure hose place of withholding often occurs in use and leaks
The failures such as oil, body pull-off.For the problem present on, substantial amounts of improvement is have also been made in recent years, for example：To improve sealing
Can, if setting arterial highway sealing ring and being withheld in joint core with body at the position of withholding of joint core（The patent No.：
201210167200.7；201420600091.8)；To improve anti-pull-off performance, annular groove in Hose Jacket and joint core is improved（Withhold
Tooth）Set-up mode（The patent No.：99248007.8；200520077228.7；200620160181.5；201120246152.1；
201120575790.8；201220297887.1；201220359891.6；201220719076.6；201320416406.9；
201320654065.9；201320891514.1), or by the way of outer even steel wire joint core and body are connected in outside
Connect, be further added by anti-pull-off safety curtain together（The patent No.：201420464379.7）；To avoid joint from producing turbulent flow, joint
Core sets up flow-guiding structure（The patent No.：201420548536.2）.Above technology has been partially improved existing in terms of different respectively
The deficiency of technology, but still disadvantages described above fundamentally cannot be thoroughly eliminated, especially for engineering machinery, because of its operating environment
Badly, the reason such as applying working condition complexity, field maintenance inconvenience, has requirement higher to the reliability index of high-pressure hose, existing
Some technologies there is no method to fully meet the demand of client, and a kind of high-pressure hose product of high reliability of market in urgent need meets machine
Operating mode need, with reduce field fault power time, meet project progress, reduce part replacement cost, to reduce leakage dirty
Dye.
The content of the invention
In order to solve existing to withhold hose assembly complex manufacturing technology, quality control difficulties, withhold that position fault rate is high, connect
Head place there are problems that throttling and turbulent, joint core and Hose Jacket cannot be reused, use cost, the invention provides one
Pressure hose and its connection parts are planted, the deficiencies in the prior art are fundamentally solved.
The present invention is realized using following technical scheme：A kind of pressure hose and its connection parts, including taper connect
Head, body, half cone valve and locked instrument.The stage casing of body is tubular, and two ends are the wall expanded and formed that stretches out along axis
Thick uniformly tapered mouth.The center of taper joint is an insertion oil duct consistent with pipe body drift diameter, and one end of joint is bullet,
Outwardly, the outer conical surface of bullet is inserted within the internal conical surface of body conical opening and matches shape with its conical surface the small end of bullet
Coordinate into conical surface seal；The other end of joint is that fastening structure can cooperatively form fastening company with locked instrument, hydraulic part Y
Connect.Half cone valve has a datum level M and the indent conical surface that a surface is 1/2 circular conical surface, and the axis of the indent conical surface and starting are female
Line and termination bus are respectively positioned on datum level M（In reality production, due to the difference of manufacture method, half cone valve actual parts it is interior
The actual effective area in concave cone face is likely less than theoretic 1/2 circular conical surface.Such as, when first two half cone valves are manufactured in production
Into an entirety, two half cones are then obtained simultaneously by the way of middle subdivision along the theoretical principle face M for crossing female cone axis
Valve part, now due to the influence of otch thickness, the part indent conical surface is removed, the actual indent conical surface certainty of half cone valve part
Less than theoretic 1/2 circular conical surface.For the ease of literal description, it is actual to half cone valve interior that we ignore different manufacture methods
The influence in concave cone face, and assume that half cone valve is formed as cutting plane with the theoretical principle face M of zero thickness, its indent conical surface is
Theoretic 1/2 circular conical surface）.Half cone valve must be matched and used, and made datum level M relative during assembling and overlapped, and be right with datum level M
Title face is symmetrically assemblied in the outer conical surface of body conical opening, it is ensured that the indent conical surface of two half cone valves formed in theory one it is complete
Whole internal conical surface simultaneously matches to form cooperation with the outer conical surface of body conical opening.As locked instrument and taper joint, hydraulic part Y
After being fastened together, two half cone valves under the constraint of radial and axial both direction, two indent conical surfaces of half cone valve
A complete internal conical surface is consistently formed to be pressed in the outer conical surface of body conical opening and keep correct cooperation, and and this
The internal conical surface of body conical opening is then pressed in the outer conical surface of taper joint bullet simultaneously.As taper joint, body, half
Cone valve and locked instrument are coaxially assembled together by above assembly relation and ensure that taper joint reaches suitably with locked instrument
After fastening force, the tube wall of body conical opening is just subject to reasonable between the outer conical surface of taper joint and the indent conical surface of half cone valve
Extruding and produce and meet the elastic deformation of seal request, so as to reach the purpose that the present invention is tightly connected.The axle of locked instrument
It is bigger to fastening force, it is clamped in suffered by the conical opening tube wall between the outer conical surface of taper joint and the indent conical surface of half cone valve
Extruding force is also bigger, therefore sealing effectiveness can easily be controlled by locked instrument, so as to avoid the generation of leakage.
Within the rational regime of elastic deformation that tube wall can bear, fastening force is bigger, and sealing effectiveness is better, resists the energy of body pull-off
Power is also stronger.In theory, the conical opening of body is objectively also beneficial to prevent body pull-off, when body is subject to axial tension,
The trend of the oriented smaller sectional flow of material on body conical opening on the section of axis, and due to the size in section
It is already confined between the outer conical surface of taper joint and the indent conical surface of half cone valve, therefore big section will be cut by small
Face must reduce area of section by bigger crimp, so that tube wall is extruded by bigger, produce bigger supporting
The de- ability of resistance to plucking, so, body conical opening can draw tighter and tighter when axial tension is born, the automatic energy for increasing resistance pull-off
Power, it is to avoid the generation of pull-off phenomenon.
The combination unit of a kind of pressure hose and its connection parts, including taper joint, body and locked instrument, it is special
Levy and be：The two ends of body are provided with the conical opening of the expansion formation that stretches out along axis, the joint outer conical surface of taper joint
1.5 are inserted in formation cone match in conical opening internal conical surface 6.2；Also include two half cone valves that pairing is used（5；5a；5b）, half
Cone valve has an indent conical surface 5.5, and parcel is assemblied in the outer conical surface 6.3 of body conical opening, and locked instrument is suitably fastening
Power coordinates to two half cone valves with taper joint（5；5a；5b）Formed in radial and axial both direction and constrained, and connect in taper
Formed between the joint outer conical surface 1.5 and the indent conical surface 5.5 of half cone valve of head to the extruding of body conical opening tube wall so that pipe
Body conical opening tube wall produces the elastic deformation for meeting seal request.
Further, stretch out from the big end of body conical opening and be provided with the lip of annular, the internal diameter of lip is equal to cone
The outside diameter of the intraoral circular conical surface 6.2 of shape, the outside diameter of the external diameter not less than conical opening outer conical surface 6.3 of lip.
Further, the lip also counterbored outer ring 4 and stepped inner ring 8 including ring-type, the two is enclosed within body oral area simultaneously
Body enhancement layer is connected firmly between the inner surface of counterbored outer ring 4 and the outer surface of stepped inner ring 8.
Further, from half cone valve（5；5a；5b）The small conical surface end of the indent conical surface 5.5 axially outwardly extend semicolumn
Face II 5.2, the pipe face 6.1 of semi-cylindrical II 5.2 and body is wrapped on its surface with merging.
Further, half cone valve（5；5a；5b）The oral area of semi-cylindrical II 5.2 seamed edge rounding in case damage body appearance
Face.
Further, locked instrument is a lock screw 3, and inner surface setting has locknut inner cylinder face I 3.1, locknut inner circle
Cylinder II 3.3 and locknut shoulder 3.2, outer one end of locknut inner cylinder face II 3.3 are additionally provided with locknut internal thread 3.4 and taper
The external screw thread II 1.3 of joint 1 coordinates；Half cone valve 5 is provided with the locknut inner cylinder face II of semi-cylindrical III 5.7 and lock screw 3
3.3 coordinate, by its radial constraint；And the circular bead surface 5.4 that half cone valve 5 is set is against on locknut shoulder 3.2, by its axial constraint；
The diameter of locknut inner cylinder face I 3.1 should ensure that and may pass through body lip（K1；K2；K3）, and the semicolumn of half cone valve 5 can be enclosed within
On face I 5.1.
Further, locked instrument includes locking ring I 13, locking ring II 14, alignment pin 16；Taper joint is flange taper
Joint 1a, half cone valve is flange half cone valve 5a, and flange half cone valve 5a datum levels M is provided with dowel hole 5a.2, can install fixed
Position pin 16, the flange half cone valve 5a that uses of pairing is positioned and is assembled together by alignment pin 16, and with locking ring I 13, locking ring
II 14 entangle its periphery locks its radial direction free degree.
Further, half cone valve is winged side flange half cone valve 5b, and the both sides of winged side flange half cone valve 5b are provided with edge
The wing side 5b.1 that datum level M is extended outward, is provided with some mounting holes being engaged with lock bolt 17 on the 5b.1 of wing side, lock
Flange half cone valve 5b is fastened as a whole during the winged that fixing bolt 17 uses two pairings through mounting hole of the wing on 5b.1.
Further, at least one oil groove can be set in the joint outer conical surface 1.5 of taper joint and sealing ring 7 is disposed.
Further, the sealing ring 7 can be replaced sealing shroud 9 or compound a layer at the position of conical opening internal conical surface 6.2
Elaxtic seal.
A kind of pressure hose, including body, tube wall are in turn divided into Inner glue-lines, enhancement layer, 3 work(of outer glue-line from inside to outside
Ergosphere, it is characterised in that：The two ends of body are provided with the conical opening of the expansion formation that stretches out along axis, and conical opening includes taper
Intraoral circular conical surface 6.2 and conical opening outer conical surface 6.3；Stretch out from the big end of body conical opening and be provided with the lip of annular,
The internal diameter of lip is equal to the outside diameter of conical opening internal conical surface 6.2, and the external diameter of lip is not less than conical opening outer conical surface 6.3
Outside diameter；The lip also counterbored outer ring 4 and stepped inner ring 8 including ring-type, the two is enclosed within body oral area and increases body
Strong layer is connected firmly between the inner surface of counterbored outer ring 4 and the outer surface of stepped inner ring 8.
A kind of connection parts used cooperatively with above-mentioned pressure hose, the connection parts include taper joint, locking
Two half cone valves that device and pairing are used, the joint outer conical surface 1.5 of taper joint is inserted in shape in conical opening internal conical surface 6.2
Into cone match；Half cone valve has the indent conical surface 5.5, and parcel is assemblied in the outer conical surface 6.3 of body conical opening, locked instrument
Coordinated to two half cone valves with suitable fastening force and taper joint（5；5a；5b）Formed about in radial and axial both direction
Beam, and formed between the joint outer conical surface 1.5 of taper joint and the indent conical surface 5.5 of half cone valve to body conical opening tube wall
Extruding meet the elastic deformation of seal request so that body conical opening tube wall is produced.
Further, from half cone valve（5；5a；5b）The small conical surface end of the indent conical surface 5.5 axially outwardly extend semicolumn
Face II 5.2, the pipe face 6.1 of semi-cylindrical II 5.2 and body is wrapped on its surface with merging.
Further, half cone valve（5；5a；5b）The oral area of semi-cylindrical II 5.2 seamed edge rounding in case damage body appearance
Face.
Further, locked instrument is a lock screw 3, and inner surface setting has locknut inner cylinder face I 3.1, locknut inner circle
Cylinder II 3.3 and locknut shoulder 3.2, outer one end of locknut inner cylinder face II 3.3 are additionally provided with locknut internal thread 3.4 and taper
The external screw thread II 1.3 of joint 1 coordinates；Half cone valve 5 is provided with the locknut inner cylinder face II of semi-cylindrical III 5.7 and lock screw 3
3.3 coordinate, by its radial constraint；And the circular bead surface 5.4 that half cone valve 5 is set is against on locknut shoulder 3.2, by its axial constraint；
The diameter of locknut inner cylinder face I 3.1 should ensure that and may pass through body lip（K1；K2；K3）, and the semicolumn of half cone valve 5 can be enclosed within
On face I 5.1.
Further, also including locking ring I 13, locking ring II 14, alignment pin 16；Set on flange half cone valve 5a datum levels M
There is dowel hole 5a.2, alignment pin 16 can be installed, the flange half cone valve 5a that pairing is used is positioned and be assemblied in by alignment pin 16
Together, and entangle its periphery with locking ring I 13, locking ring II 14 and lock its radial direction free degree.
Further, winged 5b.1 when the both sides of flange half cone valve 5b are provided with the wing extended outward along datum level M,
Some mounting holes being engaged with lock bolt 17 are provided with the 5b.1 of wing side, lock bolt 17 passes through the installation on the 5b.1 of wing side
Be fastened as a whole for the winged side flange half cone valve 5b that two pieces pairing is used by hole.
Further, at least one oil groove can be set in the joint outer conical surface 1.5 of taper joint and sealing ring 7 is disposed.
Further, the sealing ring 7 can be replaced sealing shroud 9 or compound a layer at the position of conical opening internal conical surface 6.2
Elaxtic seal.
Compared with prior art, the beneficial effects of the invention are as follows：1st, the place's of withholding oil leak of prior art, body is eliminated to pull out
De- phenomenon；2nd, the variable cross-section at pipe joint is eliminated, it is to avoid throttling, the generation of turbulent flow, while increasing pipeline by energy
Power；3rd, solve the problems, such as that joint cannot be reused, economize on resources；4th, manufacturing process is simplified, quality control becomes simple
It is reliable；5th, the body injury that annular groove occlusion body is likely to result in of withholding of prior art is avoided；6th, beneficial to environmental protection, peace is used
Entirely, easy to maintenance, use cost is low.
Brief description of the drawings
Fig. 1 is that prior art withholds hose assembly and its pipeline connecting parts structural representation.
Fig. 2 is the half-sectional front view of the embodiment 1 of a kind of pressure hose of the invention and its connection parts, figure middle tube body
Lip configuration is K1 types.
Fig. 3 is the A-A sectional views of Fig. 2.
Fig. 4 is the partial enlarged drawing II of Fig. 2.
Fig. 5 is the partial enlarged drawing I of Fig. 2, and the lip configuration of body is K1 types.
Fig. 6 is the partial enlarged drawing I of Fig. 2, and the lip configuration of body is K2 types.
Fig. 7 is the partial enlarged drawing I of Fig. 2, and the lip configuration of body is K3 types.
Fig. 8 is the structural representation that sealing ring 7 changes sealing shroud 9 into Fig. 5, and the lip configuration of body is K1 types.
Fig. 9 is the half-sectional front view and broken section of the embodiment 2 of a kind of pressure hose of the invention and its connection parts
Figure.
Figure 10 is the B-B sectional views of Fig. 9.
Figure 11 is the half-sectional front view and broken section of the embodiment 3 of a kind of pressure hose of the invention and its connection parts
Figure.
Figure 12 is the C-C sectional views of Figure 11.
In figure, 1, taper joint；1.1st, external screw thread I；1.2nd, outer six side；1.3rd, external screw thread II；1.4th, the transition face of cylinder；
1.5th, joint outer conical surface；2nd, stop nut；3rd, lock screw；3.1st, locknut inner cylinder face I；3.2nd, locknut shoulder；3.3rd, lock
Female inner cylinder face II；3.4th, locknut internal thread；4th, counterbored outer ring；5th, half cone valve；5.1st, semi-cylindrical I；5.2nd, semi-cylindrical
Ⅱ；5.3rd, platform；5.4th, circular bead surface；5.5th, the semicircle conical surface；5.6th, fillet surface；5.7th, semi-cylindrical III；6th, body；6.1st, pipe
Face；6.2nd, conical opening internal conical surface；6.3rd, conical opening outer conical surface；7th, sealing ring；8th, stepped inner ring；9th, sealing shroud；K1, lip
Ⅰ；K2, lip II；K3, lip III；M, datum level；Y, hydraulic part；1a, flange taper joint；1a.1, flange I；5a, flange half
Cone valve；5a.1, flange II；5a.2, dowel hole；10th, flange gasket；11st, check ring I；12nd, check ring II；13rd, locking ring
Ⅰ；14th, locking ring II；15th, bolt；16th, alignment pin；17th, lock bolt；5b, winged side flange half cone valve；5b.1, wing side.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings
Embodiment 1：
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of pressure hose and its connection parts, including 1, taper joint；2nd, prevent
Loose nut；3rd, lock screw；4th, counterbored outer ring；5th, half cone valve；6th, body；7th, sealing ring；8th, stepped inner ring.
Body 6 is flexible flexible pipe, and tube wall is in turn divided into Inner glue-lines, enhancement layer, 3 functions of outer glue-line from inside to outside
Layer.The stage casing of body is tubular, and two ends are to stretch out to expand the conical opening of the uniform wall thickness for being formed, conical opening bag along axis
Include conical opening internal conical surface 6.2 and conical opening outer conical surface 6.3.Stretch out from the big end of conical opening and be provided with the lip of annular
I K1, as shown in Figure 5.
The K1 of lip I also counterbored outer ring 4 and stepped inner ring 8 including ring-type, its forming method are as follows：From the conical opening of body 6
Big end axially outwardly extend one section of body, mouth of pipe position is peelled off into interior outer glue-line is allowed to be formed one section with counterbored outer ring 4 etc.
, be enclosed within this section of external cylindrical surface of exposed enhancement layer and inner circle for counterbored outer ring 4 and stepped inner ring 8 respectively by exposed enhancement layer wide
In cylinder and end face is kept to align, being then allowed to internal diameter by shrinking counterbored outer ring 4 reduces and deform so as to tightly will be exposed
Enhancement layer is squeezed on the outer surface of stepped inner ring 8, forms the K1 of lip I of firmly connection.In order to further increase the connection
Firmness, if setting arterial highway annular grooving on the inner surface of counterbored outer ring 4 and on the outer surface of stepped inner ring 8, is allowed to
Under it is concavo-convex relative and sting the exposed enhancement layer of tight body, reach the purpose of firm connection.The inner cylinder face diameter of the K1 of lip I is equal to cone
The outside diameter of the intraoral circular conical surface 6.2 of shape, the big end of the external cylindrical surface diameter not less than conical opening outer conical surface 6.3 of lip I K1
Diameter.
The endoporus of taper joint 1 is an insertion oil duct consistent with pipe body drift diameter, and the outer surface of taper joint 1 is from right to left
It is followed successively by:It is roundlet tapered end joint outer conical surface 1.5 outwardly, the transition face of cylinder 1.4, external screw thread II 1.3, outer six side 1.2, outer
Screw thread I 1.1.Joint outer conical surface 1.5 is inserted in the conical opening internal conical surface 6.2 of body 6 and forms conical surface seal cooperation；Outer spiral shell
Line II 1.3 coordinates with locknut internal thread 3.4；The transition face of cylinder 1.4 coordinates with the inner cylinder face of body lip K1.Taper joint 1
Joint outer conical surface 1.5 on be provided with least 1 road sealing groove and place sealing ring 7, to strengthen sealing effectiveness.Outer six side 1.2
External screw thread I 1.1 is fastened to hydraulic part Y for convenient.
The same side of the datum level M of half cone valve 5 has the semi-cylindrical I 5.1 of coaxial line, semi-cylindrical II 5.2, semicolumn
Face III 5.7 and the semicircle conical surface 5.5, axis are located in datum level M.Half cone valve 5 must be used in pairs, and datum level M phases are made during assembling
Pair and overlap and after being symmetrically assemblied in the conical opening outer conical surface 6.3 of body 6 with datum level M as the plane of symmetry, just formation one
Complete overall structure, two semi-cylindricals of half cone valve 5 I 5.1 and semi-cylindrical III 5.7 just form respectively two it is complete
External cylindrical surface, and intermediate transition surface is used as by circular bead surface 5.4 and fillet surface 5.6 links together, semi-cylindrical III 5.7 and lock
Gu the locknut inner cylinder face II 3.3 of nut 3 coordinates and by radial constraint, circular bead surface 5.4 is against on locknut shoulder 3.2 and is subject to
Axial constraint；And two semicircle conical surfaces 5.5 of half cone valve 5 are then formed outside the conical opening of a complete internal conical surface and body 6
Circular conical surface 6.3 wraps up its surface with merging；The big end side of the semicircle conical surface 5.5 axially outwardly extends to the lip position of body 6
And be against on the inner side end of counterbored outer ring 4；Two semi-cylindricals of half cone valve 5, II 5.2 formation, one complete interior cylinder
Match somebody with somebody with the pipe face 6.1 of body 6 and merge its surface of parcel, oral area seamed edge rounding in order to avoid damaging outer surface of tube body in face；Semi-cylindrical I
5.1 top also cuts out a platform 5.3, is clamped with convenient wrench, and half cone valve 5 is rotated with lock screw 3 when preventing assembling.
The outer surface of lock screw 3 is outer hexagon, and inner surface setting has locknut inner cylinder face I 3.1, locknut inner cylinder face
II 3.3 and locknut shoulder 3.2, outer one section of locknut inner cylinder face II 3.3 is additionally provided with can be with the external screw thread II of taper joint 1
The locknut internal thread 3.4 of 1.3 connections.When lock screw 3 is after taper joint 1 passes through together with screw threads for fastening, two half cone valves 5
It is radial and axial just simultaneously constrained by the inner cylinder face II 3.3 and locknut shoulder 3.2 of lock screw 3.Locknut inner cylinder face I
3.1 diameter should ensure that the lip that may pass through body 6, and can be enclosed within the semi-cylindrical I 5.1 of half cone valve 5.
Stop nut 2 is commonly connected on the external screw thread II 1.3 of taper joint 1 with lock screw 3, when lock screw 3 is tight
After being affixed to position, it is close to and is held out against lock screw 3 by rotating stop nut 2 and reach locking purpose.
Specifically assembly method is：
1st step, takes a taper joint 1 for assembling sealing ring 7, connects end external screw thread I 1.1 and is assembled to hydraulic part Y
Go up and fasten in place；2nd step, stop nut 2 is assembled on the external screw thread II 1.3 of taper joint 1；3rd step, takes body 6, will
The end of thread of lock screw 3 is set on body 6 outwardly through the conical opening of body 6 and leaves the segment distance party B of conical opening one and continues dress after an action of the bowels
Match somebody with somebody；4th step, takes two pieces half cone valve 5, its semicircle conical surface 5.5 is symmetrically coordinated the taper in body 6 with datum level M as the plane of symmetry
In mouth outer conical surface 6.3, clamp two half cone valve 5 and keep end face alignment and datum level M coincidences；5th step, lock screw 3 is enclosed within
On the semi-cylindrical III 5.7 of half cone valve 5, and its locknut shoulder 3.2 is set to be against on the circular bead surface 5.4 of half cone valve 5；6th step, connection
To on the external screw thread II 1.3 of taper joint 1, fastening in place and ensures suitable torque to lock screw 3；7th step, keeps locking spiral shell
Female 3 is motionless, and rotation stop nut 2 makes its close lock screw 3 and holds out against, it is ensured that reliable locking torque；8th step, by above-mentioned
Same method assembles the other end of body 6.
Specifically the mechanism of action is：
During lock screw 3 moves closer to taper joint 1 and passes through threaded engagement connection together, by it
While locknut inner cylinder face II 3.3 constrains the radial direction free degree of the semi-cylindrical III 5.7 of half cone valve 5, by its locknut platform
Shoulder 3.2 promotes the circular bead surface 5.4 of half cone valve 5 to move axially, while the semicircle conical surface 5.5 of half cone valve 5 promotes the conical opening of body 6
Outer conical surface 6.3 is moved together, forces the conical opening internal conical surface 6.2 of body 6 to move closer to the outer conical surface of taper joint 1
1.5 and fit together.Now continue to screw lock screw 3, due to the radial direction of half cone valve 5 and axially respectively by lock screw
The limitation of 3 locknut inner cylinder face II 3.3 and locknut shoulder 3.2, then the semicircle conical surface 5.5 of half cone valve 5 and connecing for taper joint 1
The distance between head outer conical surface 1.5 can only continue to reduce, so as to the tube wall to sealing ring 7 and the conical opening of body 6 produces extruding
, there is elastic deformation in effect, form elastic packing.In rational regime of elastic deformation, the clamp load torque of lock screw 3 is got over
Greatly, extrusion effect and elastic deformation are also bigger, and the effect of elastic packing is also better.When the clamp load torque of lock screw 3 reaches symbol
Desired appropriate value is closed so as to after the sealing effectiveness that ensure that requirement, keep lock screw 3 motionless while rotating stop nut 2
Make its close lock screw 3 and be fastened to satisfactory locking Tightening moment value, so as to complete to uncage the anti-of lock screw 3
It is fixed.The conical opening of body 6 is squeezed after fastening, can prevent the pull-off phenomenon between body and joint；And the annular lip of body 6
Mouth structure K1 can be conducive to allowing body enhancement layer directly to bear pull-out force, so as to protect interior outer glue-line from excessive tensile, half
Bore under the restriction of valve 5, prevent the pull-off of body, enhance the reliability of body connection.
The structure of the lip of body 6 can have various changes, and the present embodiment has also listed the K2 of lip II, lip III K3, two kinds of lips
Structure, as shown in Figure 6, Figure 7.K2 structures profile compared with K1 is consistent, and main change is：Eliminate counterbored outer ring 4 and fore shaft
Inner ring 8, stepped inner ring 8 is replaced with Inner glue-lines, and the position of counterbored outer ring 4 is filled up with enhancement layer, so as to simplify structure；K3 structures by
The big end of conical opening of body 6 directs out axially extending acquisition, and its inner cylinder face diameter is equal to the big of conical opening internal conical surface 6.2
End diameter, and external cylindrical surface diameter is equal to the outside diameter of conical opening outer conical surface 6.3, so that structure more simplifies.It is suitable
The structure of the structure change of lip K2, K3, half cone valve 5 is answered to do accommodation, from the lateral outer shaft in big end one of the semicircle conical surface 5.5
To extending the structure that can coat lip outer surface and terminating at lip outer face, as shown in Figure 6, Figure 7.
In addition, sealing ring 7 can also be replaced by sealing shroud 9, corresponding structure change as shown in figure 8, no longer illustrate herein.It is aobvious
And be clear to, the effect of sealing shroud 9 can also use compound one layer of mode of elaxtic seal on body conical opening internal conical surface
Realize.
Embodiment 2：
As shown in Figure 9, Figure 10, a kind of pressure hose and its connection parts, compared with Example 1, embodiment 2 is changed
The mode locked with lock screw originally, eliminates lock screw 3, and threaded connection is become into flange connection, correspondingly, cone
Shape joint 1 is replaced with the flange taper joint 1a with flange, and half cone valve 5 is replaced with the flange half cone valve 5a with flange, together
When increased locking ring I 13, locking ring II 14, check ring I 11, check ring II 12, bolt 15, flange gasket 10, alignment pin
16, other structures keep constant.
Locking ring I, locking ring II are the rectangular annulus of section, and internal diameter size should be greater than the lip external diameter of body 6, and with
The external cylindrical surface interference fit of flange half cone valve 5a, check ring I, check ring II respectively limit locking ring I, locking ring II
Axial location.
Flange taper joint 1a remains the joint outer conical surface 1.5, the transition face of cylinder 1.4 of taper joint 1 in embodiment 1
And the insertion oil duct at center, and instead of the external screw thread II 1.3 of taper joint 1, outer with the 1a.1 of flange I with some mounting holes
Six sides 1.2 and external screw thread I 1.1.
The inner-cavity structure of flange half cone valve 5a remains the semicircle conical surface of half cone valve 5 in embodiment 1 as half cone valve 5
5.5th, the interior surface features such as semi-cylindrical II 5.2 are so as to keep being adapted with the contour structures of body 6 and coordinate with its outer surface；
Outer surface is provided with the mounting surface that can coordinate with locking ring I, locking ring II, and sets check ring mounting groove to install spring catch
Circle is so as to limit locking ring axial location.The end face of flange half cone valve 5a also sets up the 5a.1 of flange II with some mounting holes,
Can be used cooperatively with the 1a.1 of flange I of flange taper joint 1a, the quantity of mounting hole and position, size and the 1a.1 of flange I are one
One is corresponding.2 symmetrical dowel hole 5a.2 are additionally provided with the datum level M of flange half cone valve 5a, alignment pin 16 can be installed,
So as to ensure that matching the flange half cone valve 5a for using is in correct rigging position.
Flange gasket 10 is a ring flange, is placed between the adpting flange of flange taper joint 1a and flange half cone valve 5a,
Main Function is：Limit between the outer conical surface 1.5 and the semicircle conical surface 5.5 of flange half cone valve 5a of flange taper joint 1a away from
From so as to ensure that the conical opening tube wall of body 6 is subject to the extruding force of suitable size and produces satisfactory rational elasticity to become
Shape, and then it is met the sealing effectiveness of requirement.The thickness of flange gasket 10 can determine according to actual needs.
Specifically assembly method is：
1st step, takes 1 flange half cone valve 5a, and 2 alignment pins 16 are loaded into dowel hole 5a.2；2nd step, takes body 6,
Check ring II, locking ring II, check ring I, locking ring I are sequentially passed through the conical opening of body 6 in the above sequence, pipe is enclosed within
On the pipe face of body 6, and the segment distance of conical opening one is left, to facilitate follow-up assembling；3rd step, will install the flange of alignment pin 16
Half cone valve 5a is assembled in the conical opening outer conical surface 6.3 of body 6, its semicircle conical surface 5.5 is fitted with it；1 flange is taken again
Half cone valve 5a, it is symmetrically assembled on the conical opening of body 6, and alignment pin 16 is inserted its dowel hole 5a.2；4th step, folder
Tight two flanges half cone valve 5a, keeps two datum level M to overlap, successively by locking ring I, check ring I, locking ring II, check ring
II is assembled on the external cylindrical surface correspondence position of flange half cone valve 5a.Now it is total in alignment pin 16 and locking ring I, locking ring II
Under same-action, two flange half cone valve 5a have been combined into a global facility and are wrapped on the conical opening of body 6；5th step, takes
1 flange taper joint 1a and 1 flange gasket 10, flange gasket 10 are enclosed within flange taper joint 1a and are leaned against with flange 1a.1
Together and mounting hole is aligned, then the joint outer conical surface 1.5 of flange taper joint 1a is inserted and has assembled flange half cone valve
In the conical opening of the body 6 of 5a, and make flange gasket 10 lean against on flange 5a.1 keep mounting hole align, put on bolt 15；6th
Step, the above-mentioned assembly for assembling is assembled on hydraulic part Y, has fastened bolt 15；7th step, is filled by above-mentioned same mode
Prepare the other end of body 6.
Specifically the mechanism of action is：
The present embodiment determines the correct cooperation position of the flange half cone valve 5a that pairing is used by datum level M, alignment pin 16,
The two reliability is fixed together by locking ring I, locking ring II, limits its radial direction free degree；Limited by flange gasket 10 and bored
Axial mounting distance between shape joint 1 and flange half cone valve 5a, so as to ensure that the conical opening tube wall of body 6 connects in flange taper
The extruding force of suitable size is subject between the head joint outer conical surface 1.5 of 1a and the semicircle conical surface 5.5 of flange half cone valve 5a and is produced
Life meets the elastic deformation of seal request；Fastening bolt 15 in place keeps above-mentioned assembling to close while above-mentioned extruding force is provided
System.
Embodiment 3：
As shown in Figure 11, Figure 12, a kind of pressure hose and its connection parts, compared with Example 2, embodiment 3 changes
The radial direction locking mode of embodiment 2, eliminates alignment pin 16, locking ring I, locking ring II, check ring I, check ring II,
Lock bolt 17 is increased, correspondingly, flange half cone valve 5a is replaced with winged side flange half cone valve 5b.Winged side flange half cone valve
Extend wing side 5b.1 to both sides along datum level M in the outer conical surface of 5b, some and lock bolt 17 is provided with the 5b.1 of wing side
The mounting hole of matching.Other structures are consistent with embodiment 2.
Specifically assembly method is：
Two pieces winged side flange half cone valve 5b is taken, is made datum level M coincidences and is symmetrically assemblied in the conical opening outer cone of body 6
On face 6.3, flange half cone valve 5b fastenings when lock bolt 17 passes through mounting hole of the wing on 5b.1 by two pieces winged are taken successively is
Integrally.Follow-up assembly method is with reference to embodiment 2.
Specifically the mechanism of action is：
The present embodiment will match the flange half cone valve 5b for using and coordinates position by correct by datum level M, lock bolt 17
Put and the two is reliably fixed together, lock bolt 17 plays a part of positioning and clamps simultaneously.Other mechanisms of action and reality
Apply example 2 same.
The present invention preferably specific embodiment is the foregoing is only, but protection scope of the present invention is not limited thereto.
It is clear that according to actual needs, many variations can also be made.For example：Taper joint 1 can also be bent sub, can also
It is any as needed to lengthen, change shape；Type of attachment both can be for external screw thread connection, or internal thread or using spelling
Flange is connected；Taper joint 1 can both exist as an independent parts, can also be integrated in conduct on hydraulic part Y
The connecting interface ... of hydraulic part.Any one skilled in the art the invention discloses technical scope in, root
Be subject to equivalent or change according to technical scheme and its inventive concept, should all cover protection scope of the present invention it
It is interior.
Claims (17)
1. the combination unit of a kind of pressure hose and its connection parts, including taper joint, body and locked instrument, body pipe
Wall is in turn divided into Inner glue-lines, enhancement layer, 3 functional layers of outer glue-line from inside to outside, it is characterised in that：The two ends of body are provided with
Stretch out the conical opening expanded and formed along axis, stretches out from the big end of body conical opening and is additionally provided with the lip of annular,
The internal diameter of lip is equal to conical opening internal conical surface（6.2）Outside diameter, the external diameter of lip is not less than conical opening outer conical surface
（6.3）Outside diameter；The lip also counterbored outer ring including ring-type（4）With stepped inner ring (8), the two is enclosed within body oral area
And body enhancement layer is connected firmly to counterbored outer ring（4）Between inner surface and stepped inner ring (8) outer surface；Taper joint connects
Head outer conical surface（1.5）It is inserted in body conical opening internal conical surface (6.2）Interior formation cone match；Also include two that pairing is used
Half cone valve（5；5a；5b）, half cone valve has the indent conical surface（5.5), parcel is assemblied in the outer conical surface (6.3 of body conical opening）
On, locked instrument is coordinated to two half cone valves with suitable fastening force and taper joint（5；5a；5b）At radial and axial two
Direction forms constraint, and in the joint outer conical surface of taper joint（1.5）With the indent conical surface of half cone valve（5.5) it is right to be formed between
The extruding of body conical opening tube wall is so that body conical opening tube wall produces the elastic deformation for meeting seal request.
2. a kind of pressure hose according to claim 1 and its connection parts combination unit, it is characterised in that：From half
Cone valve（5；5a；5b）The indent conical surface（5.5) semi-cylindrical II is axially outwardly extended in small conical surface end（5.2）, semi-cylindrical
Ⅱ（5.2）With the pipe face of body（6.1）It is wrapped on its surface with merging.
3. a kind of pressure hose according to claim 2 and its connection parts combination unit, it is characterised in that：Half cone
Valve（5；5a；5b）Semi-cylindrical II（5.2）The seamed edge rounding of oral area is in order to avoid damage outer surface of tube body.
4., according to a kind of any described pressure hoses of claim 1-3 and its combination unit of connection parts, its feature exists
In：Locked instrument is a lock screw（3）, inner surface setting has locknut inner cylinder face I（3.1）, locknut inner cylinder face II（3.3）
And locknut shoulder（3.2）, locknut inner cylinder face II（3.3）Outer one end is additionally provided with locknut internal thread（3.4）Connect with taper
Head（1）External screw thread II（1.3）Coordinate；Half cone valve（5）It is provided with semi-cylindrical III（5.7）With lock screw（3）Locknut in
The face of cylinder II（3.3）Coordinate, by its radial constraint；And half cone valve（5）The circular bead surface of setting（5.4）It is against locknut shoulder（3.2）
On, by its axial constraint；Locknut inner cylinder face I（3.1）Diameter should ensure that and may pass through body lip（K1；K2；K3）, and can cover
In half cone valve（5）Semi-cylindrical I（5.1）On.
5., according to a kind of any described pressure hoses of claim 1-3 and its combination unit of connection parts, its feature exists
In：Locked instrument includes locking ring I（13）, locking ring II（14）, alignment pin（16）；Taper joint is flange taper joint
（1a）, half cone valve is flange half cone valve（5a）, flange half cone valve（5a）Datum level（M）It is provided with dowel hole（5a.2）, can be with
Alignment pin is installed（16）, the flange half cone valve that pairing is used（5a）By alignment pin（16）Position and be assembled together, and with locking
Ring I（13）, locking ring II（14）Entangle its periphery and lock its radial direction free degree.
6., according to a kind of any described pressure hoses of claim 1-3 and its combination unit of connection parts, its feature exists
In：Half cone valve is winged side flange half cone valve（5b）, winged side flange half cone valve（5b）Both sides be provided with along datum level（M）To
The outer wing side extended（5b.1）, wing side（5b.1）On be provided with some and lock bolt（17）The mounting hole being engaged, locking
Bolt（17）Through wing side（5b.1）On mounting hole match the winged side flange half cone valve that uses by two（5b）Fasten is one
Body.
7., according to a kind of any described pressure hoses of claim 1-3 and its combination unit of connection parts, its feature exists
In：The joint outer conical surface of taper joint（1.5）It is upper that at least one oil groove can be set and sealing ring is disposed（7）.
8. a kind of pressure hose according to claim 7 and its connection parts combination unit, it is characterised in that：It is described
Sealing ring（7）Can be replaced sealing shroud（9）Or in conical opening internal conical surface (6.2）Position is combined one layer of elaxtic seal.
9. a kind of pressure hose, including body, tube wall is in turn divided into Inner glue-lines, enhancement layer, 3 functions of outer glue-line from inside to outside
Layer, it is characterised in that：The two ends of body are provided with the conical opening of the expansion formation that stretches out along axis, and conical opening includes conical opening
Internal conical surface (6.2) and conical opening outer conical surface (6.3)；Stretch out from the big end of body conical opening and be provided with the lip of annular
Mouthful, the internal diameter of lip is equal to conical opening internal conical surface（6.2）Outside diameter, the external diameter of lip is not less than conical opening outer conical surface
（6.3）Outside diameter；The lip also counterbored outer ring including ring-type（4）With stepped inner ring (8), the two is enclosed within body oral area
And body enhancement layer is connected firmly to counterbored outer ring（4）Between inner surface and stepped inner ring (8) outer surface.
10. a kind of connection parts that pressure hose with described in claim 9 is used cooperatively, the connection parts include taper
Two half cone valves that joint, locked instrument and pairing are used, it is characterised in that：The joint outer conical surface of taper joint（1.5）Insert
In conical opening internal conical surface (6.2）Interior formation cone match；Half cone valve has the indent conical surface（5.5), parcel is assemblied in body cone
The outer conical surface (6.3 of shape mouthful）On, locked instrument is coordinated to two half cone valves with suitable fastening force and taper joint（5；5a；
5b）Formed in radial and axial both direction and constrained, and in the joint outer conical surface of taper joint（1.5）With the indent of half cone valve
The conical surface（5.5) formed between to the extruding of body conical opening tube wall so that body conical opening tube wall produces the bullet for meeting seal request
Property deformation.
11. connection parts according to claim 10, it is characterised in that：From half cone valve（5；5a；5b）The indent conical surface
（5.5) semi-cylindrical II is axially outwardly extended in small conical surface end（5.2）, semi-cylindrical II（5.2）With the pipe face of body
（6.1）It is wrapped on its surface with merging.
12. connection parts according to claim 11, it is characterised in that：Half cone valve（5；5a；5b）Semi-cylindrical II
（5.2）The seamed edge rounding of oral area is in order to avoid damage outer surface of tube body.
13. according to any described connection parts of claim 10-12, it is characterised in that：Locked instrument is a lock screw
（3）, inner surface setting has locknut inner cylinder face I（3.1）, locknut inner cylinder face II（3.3）And locknut shoulder（3.2）, in locknut
The face of cylinder II（3.3）Outer one end is additionally provided with locknut internal thread（3.4）With taper joint（1）External screw thread II（1.3）Match somebody with somebody
Close；Half cone valve（5）It is provided with semi-cylindrical III（5.7）With lock screw（3）Locknut inner cylinder face II（3.3）Coordinate, by it
Radial constraint；And half cone valve（5）The circular bead surface of setting（5.4）It is against locknut shoulder（3.2）On, by its axial constraint；In locknut
The face of cylinder I（3.1）Diameter should ensure that and may pass through body lip（K1；K2；K3）, and half cone valve can be enclosed within（5）Semi-cylindrical I
（5.1）On.
14. according to any described connection parts of claim 10-12, it is characterised in that：Also include locking ring I（13）, lock
Gu ring II（14）, alignment pin（16）；Flange half cone valve（5a）Datum level（M）It is provided with dowel hole（5a.2）, can install fixed
Position pin（16）, the flange half cone valve that pairing is used（5a）By alignment pin（16）Position and be assembled together, and with locking ring I
（13）, locking ring II（14）Entangle its periphery and lock its radial direction free degree.
15. according to any described connection parts of claim 10-12, it is characterised in that：Winged side flange half cone valve（5b）
Both sides be provided with along datum level（M）The wing side for extending outward（5b.1）, wing side（5b.1）On be provided with it is some with locking spiral shell
Bolt（17）The mounting hole being engaged, lock bolt（17）Through wing side（5b.1）On mounting hole by the two pieces winged that uses of pairing
Side flange half cone valve（5b）It is fastened as a whole.
16. according to any described connection parts of claim 10-12, it is characterised in that：The joint outer cone of taper joint
Face（1.5）It is upper that at least one oil groove can be set and sealing ring is disposed（7）.
17. connection parts according to claim 16, it is characterised in that：The sealing ring（7）Can be replaced sealing shroud
（9）Or in conical opening internal conical surface (6.2）Position is combined one layer of elaxtic seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510803460.2A CN105276317B (en) | 2015-11-20 | 2015-11-20 | Connection parts and combination device that pressure hose is used cooperatively with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510803460.2A CN105276317B (en) | 2015-11-20 | 2015-11-20 | Connection parts and combination device that pressure hose is used cooperatively with it |
Publications (2)
| Publication Number | Publication Date |
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| CN105276317A CN105276317A (en) | 2016-01-27 |
| CN105276317B true CN105276317B (en) | 2017-07-04 |
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| CN201510803460.2A Active CN105276317B (en) | 2015-11-20 | 2015-11-20 | Connection parts and combination device that pressure hose is used cooperatively with it |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458191A (en) * | 2018-05-24 | 2018-08-28 | 嘉兴宸轩管件制造科技有限公司 | A kind of pipe fitting |
| CN109140087B (en) * | 2018-09-18 | 2019-09-17 | 四川大学 | The self-sealing circumference crossover sub of resistance to mesohigh and the seal connecting method of hose |
| CN110107757B (en) * | 2019-05-09 | 2021-01-05 | 浙江东航消防泵业有限公司 | Water pipe connecting structure of self-priming pump |
| CN110056652B (en) * | 2019-05-14 | 2023-11-03 | 扬州赛普润橡塑有限公司 | Extrusion type rubber sealing ring |
| CN111578020B (en) * | 2020-05-23 | 2021-10-26 | 浙江帕茨精工股份有限公司 | Easily-installed hydraulic pipe joint for engineering machinery |
| CN113389720A (en) * | 2021-05-27 | 2021-09-14 | 中国十七冶集团有限公司 | Conveniently-installed triple control pump and use method thereof |
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| GB747116A (en) * | 1953-01-16 | 1956-03-28 | Aeroquip Corp | Hose end fitting |
| US2853319A (en) * | 1956-10-04 | 1958-09-23 | Resistoflex Corp | Reusable end fitting for plural layer hose |
| GB897366A (en) * | 1957-10-31 | 1962-05-23 | Titeflex Inc | Reusable fitting for braid-covered hose |
| US4729583A (en) * | 1985-08-07 | 1988-03-08 | Titeflex Corporation | Reusable end fitting for convoluted hose |
| CN101162067A (en) * | 2006-10-13 | 2008-04-16 | 黄金伦 | Bipyramid pipe joint |
| CN201779380U (en) * | 2010-09-21 | 2011-03-30 | 罗模 | Separation-proof leak-prevention hose joint |
| CN202647010U (en) * | 2012-05-22 | 2013-01-02 | 四川简阳港通集团有限公司 | Withhold type hose sealing joint |
| CN203099162U (en) * | 2012-12-27 | 2013-07-31 | 安徽铜陵科力阀门有限责任公司 | Flexible connector |
| CN103629456A (en) * | 2013-05-08 | 2014-03-12 | 孙海潮 | Connecting nut special for refrigerating fluid connecting line of split-type air conditioner |
| CN104110539B (en) * | 2013-07-22 | 2016-11-23 | 广东美的制冷设备有限公司 | Air-conditioner and Anti-dismantling pipe connecting device |
| CN103481514B (en) * | 2013-10-11 | 2015-09-09 | 宁波贝达管业有限公司 | A kind of plastics pipe interface technique |
| CN203549175U (en) * | 2013-11-26 | 2014-04-16 | 中国重汽集团济南动力有限公司 | Inserted connection type liquid pipeline connection pipe |
| CN205261090U (en) * | 2015-11-20 | 2016-05-25 | 朱德伟 | Pressure hose, connection spare part that uses rather than cooperation and composite set of two |
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Effective date of registration: 20180608 Address after: 266000 A101-6, 5 Jiading Road, Shibei District, Qingdao, Shandong. Patentee after: Qingdao extreme Creative Technology Limited Address before: 266044 Baoli Lily Garden 12, Jinhua Branch Road, Shibei District, Qingdao, Shandong 20-1-801 Patentee before: Zhu Dewei |