CN206496128U - A kind of length adjustable rubber hose connection unit - Google Patents
A kind of length adjustable rubber hose connection unit Download PDFInfo
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- CN206496128U CN206496128U CN201720115962.0U CN201720115962U CN206496128U CN 206496128 U CN206496128 U CN 206496128U CN 201720115962 U CN201720115962 U CN 201720115962U CN 206496128 U CN206496128 U CN 206496128U
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Abstract
The utility model is related to a kind of length adjustable rubber hose connection unit, including rubber hose, flexible pipe nut and cone hose coupling；Flexible pipe nut one end is provided with the first internal thread, and the other end is provided with zigzag internal thread, and the first internal thread and zigzag internal thread are oppositely oriented；Cone hose coupling includes cylindrical section and conical section, and one end that the cylinder of cylindrical section is connected with conical section is provided with the first external screw thread, and the first external screw thread matches with the first internal thread；Rubber hose is screwed in flexible pipe nut by zigzag internal thread, cone hose coupling enters flexible pipe nut through hole from conical section, conical section cone enters in flexible pipe nut, cone hose coupling is connected fastening with flexible pipe nut by the first external screw thread with screwing for the first internal thread, the sealing formed between rubber hose and flexible pipe nut；The cylindrical section openend of cone hose coupling is connected by connector device with pipeline.Have the advantages that simple in construction, cost is low, easy for installation, adaptability is good, high pressure, reliability it is high.
Description
Technical field
The utility model is related to compressor field, more particularly to a kind of length adjustable rubber hose connection unit.
Background technology
The water supply line of large-size water-cooling compressor, traditional structure generally has the steel pipe of antirust coat, two ends using surfaces externally and internally
Set cuts external screw thread, is equipped with various pipe fittings, " docking ", " elbow ", " movable joint " such as with internal thread, and various pipe controls
Element, such as " hand stop valve ", " water flow indicator ", " electromagnetic water valve ", constitute supply channel.
For ease of the assembly and disassembly of pipeline and each component, to repair and to update, the two ends of each control element and one group
The closure of pipeline must all install " movable joint ".It was verified that " movable joint " is easy to occur seepage.Because, one group of pipe
The two ends in road are mounted on two different parts, and volumetric position error is very big, cause two adapters of closure not coaxial,
Cause " movable joint " sealing surface installed in blanked-off nozzle end crooked not parallel.It is not enough although being provided with soft seal pad in sealing surface
To make up larger skew error, cause percolating water, flexible pipe sealing gasket extrusion damage can become seepage by excessive screwing " movable joint "
Into big leakage；Even if leak-stopping, it is permanent to maintain, and after machine is carried or runs certain time, due to reasons such as vibrations, makes pipe
There is seepage in some weak links in road, especially " movable joint ".For exclude breakthrough, sometimes even by a pipeline each zero
Part all solutions body is readjusted, and is made crooked reduce as far as possible of closure and can just be proved effective, and this tradition turned into industry is difficult
Topic.
Therefore, a kind of attractive selection is turned into using the rubber hose substitution steel pipe with certain flexibility.But market
The rubber hose (containing joint) of upper commercialization, although various in style, but be all non-removable, length can not be adjusted, and be not suitable with
Compressor water channel pipeline is tall and straight, smooth vertical and horizontal aesthetic.
Based on above-mentioned situation, a kind of simple in construction, cost of research and development is low, easy for installation, adaptability is good, high pressure, reliability
High length adjustable rubber hose connection unit seems particularly necessary.
The content of the invention
The technical problems to be solved in the utility model is that a kind of simple in construction, cost of design is low, easy for installation, adaptability
The high length adjustable rubber hose connection unit of good, high pressure, reliability, solves existing technical problem.
In order to solve the above technical problems, length adjustable rubber hose connection unit of the present utility model is soft including rubber
Pipe, flexible pipe nut and cone hose coupling；Described flexible pipe nut one end is provided with the first internal thread, and the other end is provided with spiral shell in zigzag
Line, first internal thread and zigzag internal thread are coaxial, and the first internal thread and zigzag internal thread rotation are on the contrary, the sawtooth
The path of shape internal thread is in back taper, and undercut is provided between first internal thread and zigzag internal thread；The cone flexible pipe
Joint includes cylindrical section and conical section, and the cylindrical section and conical section are coaxial, what the cylinder of the cylindrical section was connected with conical section
One end is provided with the first external screw thread, and first external screw thread matches with the first internal thread；The rubber hose passes through in zigzag
It is threaded into flexible pipe nut, the cone hose coupling enters flexible pipe nut through hole from conical section, conical section cone enters soft
In pipe nut, the cone hose coupling is connected fastening with screwing for the first internal thread by the first external screw thread with flexible pipe nut,
The sealing formed between rubber hose and flexible pipe nut；The cylindrical section openend of the cone hose coupling by connector device with
Pipeline is connected.
When rubber hose screws in flexible pipe nut, spiral print is extruded in rubber hose outer wall, then cone hose coupling is revolved
Enter flexible pipe nut, cone is pressed into rubber hose hole, expand rubber hose, be tightly clamped in the circular cone of cone hose coupling
Between section and the zigzag internal thread of flexible pipe specialized nut.If rubber hose follows cone hose coupling to rotate, due to first
Internal thread and the oppositely oriented design of zigzag internal thread, in the presence of positive and negative pitch thread, rubber hose is more revolved more axially
Tightly, simultaneously because the path of zigzag internal thread, central diameter, top footpath are in back taper, its thread form is zigzag, be greatly strengthen anti-
Pull-off ability.
In practice, generally in right-handed thread, therefore the application, zigzag internal thread is spiral shell in left hand thread, first
Line, the first external screw thread, the second internal thread and the second external screw thread are right-handed thread.
Further, the rubber hose is provided with the enhanced Oil resistant rubber tube of steel wire braid.According to pumped (conveying) medium
The height of pressure, can select individual layer, double-deck or multi-layer braided layer.For large-scale compressor supply channel, because hydraulic pressure is relatively low, individual layer
It is enough.In water supply pipline system, such as straight line connection, due to can accurately adjust installation dimension, makes pipeline straight and upright attractive in appearance, is such as used for
Angle is connected, and directly can be bent rubber hose without right angle or angle pipe joint and connect, smooth U.S. of rubber hose of bending
See.Certainly, bending radius should be greater than being equal to rubber hose minimum bending radius.
Further, the pitch of the zigzag internal thread is 5~8mm, and the rubber hose of matching is cylindrical is engaged, rubber
Glue hose outside diameter takes large values greatly, otherwise gets the small value.The thread of zigzag internal thread is not allow for burr, and sharp edge should be repaiied blunt.
Further, the small end aperture of the zigzag internal thread is provided with guiding chamfering α, usual α=60 ° or so.
Further, the large diameter-ratio big 0.8~1mm of rubber hose external diameter in the small end aperture of the zigzag internal thread, saw
External diameter small 1.5~2mm of the internal diameter in the small end aperture of tooth form internal thread than rubber hose.It is easy to rubber hose to screw in and screw
Keep sealing.
Further, the big 0.8~1mm in big footpath at the big end of aperture ratio zigzag internal thread of the undercut, undercut
Axial length value is 1~1.5 times of zigzag internal thread pitch.
Further, the conical section is provided with guide cone, and the guide cone and conical section are coaxial；The guide cone
Internal diameter small 0.8~1mm of the small end outside diameter than rubber hose；The axial length of the guide cone is 3~4mm, described
The cone of guide cone compares for 1:3；The smallest end of the guide cone is cylindrical to be provided with seamed edge between through hole, and the width of the seamed edge is
0.5~0.8mm, the seamed edge repaiies blunt, smoothing, prevents from damaging rubber hose internal layer during insertion rubber hose.Guide cone is set
Meter can facilitate cone hose coupling to insert in rubber hose.
Further, the conical section cone outside diameter is less than the first externally threaded root diameter.
Further, the diameter of the cylindrical section cylinder is more than or equal to the first externally threaded crest footpath.
Further, the cylindrical section is cylindrical flat provided with milling, and so that back-up wrench clamping is screwed, the flat axial direction of milling is long
Degree is than the corresponding big 2~3mm of back-up wrench thickness.
Further, the cone of the conical section cone compares for 1:7.
Further, the connector device includes pipe joint and pipe nut, and the cylindrical section of the cone hose coupling is opened
Mouth end is provided with shoulder, and the shoulder is cylinder；Described pipe joint one end is provided with the second external screw thread, provided with second external screw thread one end
End face be provided with counterbore, O-ring seal is installed in the counterbore；The pipe nut is provided with the second internal thread, described second
Screw thread and the second external screw thread match；The cone hose coupling is inserted in pipe nut bore, pipe nut by the second internal thread and
Second external screw thread, which is tightened, is pressed on the shoulder of cone hose coupling on the end face of pipe joint, compresses O-ring seal, is formed close
Envelope；The other end of the pipe joint is threadedly coupled provided with screw thread with connecting line.
Further, path small 0.2~0.3mm of the diameter of the shoulder than the second internal thread of pipe nut.
Further, the axial length of the shoulder should meet bonding strength, not less than the axial direction of pipe nut minimum vias
Length.
Further, the diameter of the cylindrical section cylinder than the minimum vias of pipe nut the small 0.2~0.3mm in aperture, i.e.,
The minimum vias of the cylindrical section cylinder energy insertion tube nut, and leave 0.2~0.3mm of radial clearance.
Further, the flat place of the milling and the distance between shoulder are long more than or equal to the axial direction of pipe nut minimum vias
Degree.
Certainly, the structure of connector device can be diversified, as long as ensureing the sealing between cone hose coupling,
In addition, jointing has loose joint function with attaching nut, the interface of different tube diameters is suitable for, is convenient to mount and dismount, it is wide using scope,
Controllability is strong.
The beneficial effects of the utility model：
Length adjustable rubber hose connection unit two ends of the present utility model connected mode has movable joint function, O-shaped close
The decrement of seal is controllable, forms reliable sealing, convenient disassembly, rubber hose has certain flexibility, it is to avoid due to flexible pipe
The problem of per-interface space site error at connection unit two ends causes card strength, can be square when two connectors are not in straight line
Just curved spout is adapted to, in addition, installation length can be adjusted accurately, there is that simple in construction, cost is low, easy for installation, adapt to
The high and non-leakage advantage of the good, good anti-vibration of property, high pressure, reliability.
Brief description of the drawings
Embodiment of the present utility model is further elucidated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of length adjustable rubber hose connection unit of the present utility model；
Fig. 2 is the structural representation of the flexible pipe nut of length adjustable rubber hose connection unit of the present utility model；
Fig. 3 is the structural representation of the cone hose coupling of length adjustable rubber hose connection unit of the present utility model
Figure；
Fig. 4 is the enlarged diagram at A in Fig. 3；
Fig. 5 is the structural representation of the pipe joint of length adjustable rubber hose connection unit of the present utility model；
Fig. 6 is the structural representation of the pipe nut of length adjustable rubber hose connection unit of the present utility model；
Fig. 7 is the installation instrumentation plan of length adjustable rubber hose connection unit of the present utility model；
Fig. 8 is the application connection diagram of length adjustable rubber hose connection unit of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, it is soft that length adjustable rubber hose connection unit of the present utility model includes rubber
Pipe 1, flexible pipe nut 2 and cone hose coupling 3；Described one end of flexible pipe nut 2 is provided with the first internal thread 41, and the other end is provided with sawtooth
Shape internal thread 5, first internal thread 41 and zigzag internal thread 5 are coaxial, the first internal thread 41 and the rotation direction of zigzag internal thread 5
On the contrary, the path of the zigzag internal thread 5, central diameter, top footpath are in back taper, spiral shell in first internal thread 41 and zigzag
Undercut 21 is provided between line 5；The cone hose coupling 3 includes cylindrical section 301 and conical section 302, the cylindrical section 301 and circle
Bore section 302 coaxially, one end that the cylinder of the cylindrical section 301 is connected with conical section 302 is provided with the first external screw thread 42, described first
External screw thread 42 matches with the first internal thread 41；The rubber hose 1 is screwed in flexible pipe nut 2 by zigzag internal thread 5, institute
The conical section 302 for stating cone hose coupling 3 enters outside the through hole of flexible pipe nut 2, further make the cone hose coupling 3 first
Screw thread 42 is connected with the first internal thread 41 and screwed.Hose coupling 3 is further tightened, conical section 302 is squeezed into rubber hose 1
Endoporus, makes sebific duct radially dilate, compressed with the zigzag internal thread 5 of flexible pipe nut 2 and form sealing, and zigzag internal thread 5 falls
Cone makes resistance to plucking take off ability enhancing.The encasement tube nut 7 of cylindrical section 301 of the cone hose coupling 3, its internal thread 81 and pipe joint
External screw thread 82 is combined, and the O-ring seals in the counterbore of pipe joint 6 are compressed by the shoulder 33 of cone hose coupling 3, tool is constituted
There is the sealing structure of movable joint function.
With reference to shown in Fig. 5 and Fig. 6, in the present embodiment, the connector device includes pipe joint 6 and pipe nut 7, the cone
The openend of cylindrical section 301 of hose body joint 3 is provided with shoulder 33, and the shoulder 33 is cylinder；Described one end of pipe joint 6 is provided with
Second external screw thread 82, the end face provided with the one end of the second external screw thread 82 is provided with counterbore 61, the counterbore 61 and is provided with O-ring seal
9；The pipe nut 7 is provided with the second internal thread 81, and the external screw thread 82 of the second internal thread 81 and second matches；The cone is soft
Pipe joint 3 is inserted in the hole of pipe nut 7, and pipe nut 7 is tightened by the second internal thread 81 and the second external screw thread 82 and connect cone flexible pipe
First 3 shoulder 33 is pressed on the end face of pipe joint 6, forms sealing；The other end of the pipe joint 6 provided with the 3rd screw thread 62 with
Connecting line is threadedly coupled.In the present embodiment, the 3rd screw thread 62 is connected using ZG type Taper Pipe external screw threads with other parts or part
Connect.Path small 0.2~0.3mm of the diameter of the shoulder 33 than the second internal thread 81 of pipe nut 7.The axial direction of the shoulder 33
Length should meet bonding strength, not less than the axial length of the minimum vias of pipe nut 7.The diameter ratio of the cylinder of cylindrical section 301
Small 0.2~the 0.3mm in aperture of the minimum vias of pipe nut 7, i.e., the minimum of the described cylinder energy insertion tube nut 7 of cylindrical section 301 is led to
Hole, and leave 0.2~0.3mm of radial clearance.
In the present embodiment, zigzag internal thread 5 is designed to reverse taper left hand thread, the first internal thread 41, the first external screw thread
42nd, the second internal thread 81 and the second external screw thread 82 are right-handed thread.
In the present embodiment, the path of zigzag internal thread 5, central diameter, top footpath are reverse taper, and cone angle is 3 °~4 °.
When rubber hose 1 screws in flexible pipe nut 2, spiral print is extruded in the outer wall of rubber hose 1, then by cone hose coupling
3 (putting pipe nut 7 in advance) screw in flexible pipe nut 2, cone is pressed into the hole of rubber hose 1, expand rubber hose 1, tightly
It is clamped between the conical section 302 of cone hose coupling 3 and the zigzag internal thread 5 of flexible pipe specialized nut 2.If rubber hose
1 follows cone hose coupling 3 to rotate, due to the first internal thread 41 and the oppositely oriented design of zigzag internal thread 5, in positive and negative tooth
In the presence of screw thread, rubber hose 1 is axially being revolved tighter and tighter, simultaneously because zigzag internal thread 5 is in back taper, its thread form is saw
Dentation, greatly strengthen resistance to plucking and takes off ability.
Preferably, the rubber hose 1 is the enhanced Oil resistant rubber tube provided with steel wire braid to the present embodiment.According to defeated
The height of pressure medium is sent, individual layer, double-deck or multi-layer braided layer is can select.For large-scale compressor supply channel, because hydraulic pressure compared with
Low, individual layer is enough.In water supply pipline system, such as straight line connection, due to can accurately adjust installation dimension, makes the straight and upright U.S. of pipeline
See, be such as used for angle connection, rubber hose 1 directly can be bent into connection, the rubber of bending is soft without right angle or angle pipe joint
The smooth and beautiful appearance of pipe 1.Certainly, bending radius should be greater than being equal to the minimum bending radius of rubber hose 1.
Preferably, the pitch of the zigzag internal thread 5 is 5~8mm to the present embodiment, and the rubber hose 1 with matching is cylindrical
It is engaged, the external diameter of rubber hose 1 takes large values greatly, otherwise gets the small value.The thread of zigzag internal thread 5 is not allow for burr, sharp edge
It should repair blunt.
Preferably, the small end aperture of the zigzag internal thread 5 is provided with guiding chamfering α, a usual α=60 ° left side for the present embodiment
It is right.Scratch sebific duct when preventing from screwing in rubber hose.
Preferably, the external diameter of large diameter-ratio rubber hose 1 in the small end aperture of the zigzag internal thread 5 is big by 0.8 for the present embodiment
~1mm, the external diameter small 1.5~2mm of the internal diameter than rubber hose 1 in the small end aperture of zigzag internal thread 5.It is easy to rubber hose 1
Screw in and screw holding sealing.
The present embodiment preferably, the big 0.8~1mm in big footpath that the aperture ratio zigzag internal thread 5 of the undercut 21 is held greatly,
The axial length value of undercut 21 is 1~1.5 times of the pitch of zigzag internal thread 5.
Preferably, the conical section 302 is provided with guide cone 303, the guide cone 303 and conical section to the present embodiment
302 is coaxial；Internal diameter small 0.8~1mm of the small end outside diameter of the guide cone 303 than rubber hose 1；The guide cone
303 axial length is 3~4mm, and the cone of the guide cone 303 compares for 1:3；The smallest end of the guide cone 303 is cylindrical
Seamed edge 32 is provided between through hole, the thickness of the seamed edge 32 is 0.5~0.8mm, and the seamed edge 32 repaiies blunt, smoothing, prevents insertion
The internal layer of rubber hose 1 is damaged during rubber hose 1.It is soft that the design of guide cone 303 can facilitate cone hose coupling 3 to insert rubber
In pipe 1.
Preferably, the centrum basal diameter of conical section 302 is less than the diameter of the cylinder of cylindrical section 301 to the present embodiment.
Preferably, the diameter of the cylinder of cylindrical section 301 is more than or equal to the crest footpath of the first external screw thread 42 to the present embodiment；
Preferably, the outer wall of the cylindrical section 301 is provided with milling flat 31 to the present embodiment, so that back-up wrench clamping is screwed, milling
Flat 31 axial length is than the corresponding big 2~3mm of back-up wrench thickness.
Preferably, the cone of the cone of conical section 302 compares for 1 the present embodiment:7.
Preferably, the flat place of the milling flat 31 and the distance between shoulder 33 are minimum more than or equal to pipe nut 7 for the present embodiment
The axial length of through hole.
With reference to shown in Fig. 7, the assembling in actual use of the length adjustable rubber hose connection unit of the present embodiment and
Installation steps are：
S1：In the corresponding interface screw that two pipe joints 6 are respectively pivoted to two parts or part, by pipe nut 7 and cone
Hose body joint 3 (wouldn't mounting O-shaped sealing ring 9) is respectively assembled on two pipe joints 6；
S2：Two cone 302 of cone hose coupling 3 the distance between end L greatly are measured with steel tape0, by L0Measured length is used
Cutoff wheel cut rubber hose 1, should make cutting end face with it is cylindrical vertical；Cone hose coupling 3 and pipe nut 7 are pulled down；
S3：The overlap on the cut surface of rubber hose 1 is removed, the impurity in pore, the cylindrical painting suds of rubber hose 1 is blown down
Lubricate, screw in counterclockwise in zigzag internal thread 5, until the end face of rubber hose 1 is crowded with undercuts 21；
S4：Loaded onto in cone hose coupling in pipe nut 7, conical section 302 after smearing liquid soap for 3 sets, insertion zigzag
In internal thread 5, the first external screw thread 42 and the first internal thread 41 match, and screw cone hose coupling 3, make its conical section 302,303
The pressure insertion endoporus of rubber hose 1；
S5：O-ring seal 9 is put on pipe joint 6, pipe nut 7 and cone hose coupling 3 are respectively assembled to two pipes
On joint 6.
When the first 41 precession of external screw thread of cone hose coupling 3, the radial dilatation of rubber hose 1 is pressed on cone soft
Between the conical section 302 of pipe joint 3 and the zigzag internal thread 5 of flexible pipe nut 2, due to the zigzag internal thread 5 of flexible pipe nut 2
For zigzag, while there is 3 °~4 ° of back taper (i.e. threaded bores are small, and the inside is big), make it have very strong resistance to plucking and take off ability.
Various control elements, such as hand stop valve, water flow indicator, electromagnetism water are often equipped with practical water piping system
Valve etc., these elements are generally supported with traditional metal tube, with " tube unit " Hybrid connections, constitute supply channel, its
Closure uses " tube unit ".Because pipeline parts species is various, certain grade of cylinder of certain M type water-cooled compressor is now lifted
Enter/water return pipeline example illustrates important function of the length adjustable rubber hose connection unit of the present embodiment in pipeline.
With reference to shown in Fig. 8, water cooling cylinder 20 generally using from the water inlet of cylinder front stall lower end, is brought out on cylinder back seat
Water, so that sufficiently cool cylinder wall.The water inlet pipe of water cooling cylinder 20 is connected with water inlet manifold water cooling cylinder 10；Water cooling gas
The outlet pipe of cylinder 20 is connected with total return pipe 50.Water flow indicator 60, hand stop valve 30, electromagnetism are housed in return pipe branch road
The water lines component such as water valve 40.These components are by traditional fastener for connection, on total return pipe, and at the three of piping
Closure uses rubber hose connection unit 100.I.e.：From water inlet manifold 10 to the water inlet of water cooling cylinder 20, from water
Cool down at delivery port to the import of water flow indicator 60 of cylinder 20 and parallel branch closed section, it is different using same latus rectum
The rubber hose connection unit 100 of length.Because the two ends connected mode of rubber hose connection unit 100 has the work(of movable joint
Can, convenient disassembly, it is not necessary to special movable joint.Meanwhile, flexible pipe has certain flexibility, therefore connects single in the absence of due to rubber hose
The per-interface space site error at first 100 two ends causes card strength.When two connectors are not in straight line, it is convenient to bend soft
Pipe is adapted to.When two connectors point-blank when, because the installation length of rubber hose connection unit 100 of the present embodiment can
Easily accurate adjustment, it is also very convenient to install.Because rubber hose 1 has steel wire braid, straightness preferably, makes piping attractive in appearance,
And with vibration resistance, it is most important that once mounting success rate is high, will not seepage, substantially increase operating efficiency, save big
The movable joint of amount.
The length adjustable rubber hose connection unit two ends connected mode of the present embodiment has movable joint function, O-shaped sealing
The decrement of circle is controllable, forms reliable sealing, convenient disassembly, rubber hose has certain flexibility, it is to avoid because flexible pipe connects
The problem of per-interface space site error at order member two ends causes card strength, when two connectors are not in straight line, it can facilitate
Ground curved spout is adapted to, in addition, installation length can be adjusted accurately, there is that simple in construction, cost is low, easy for installation, adaptability
The high and non-leakage advantage of good, good anti-vibration, high pressure, reliability.
Many details are elaborated in the above description to fully understand the utility model.But above description
Only it is preferred embodiment of the present utility model, the utility model can be come with being much different from other manner described here
Implement, therefore the utility model is not limited by specific implementation disclosed above.Any those skilled in the art exist simultaneously
Do not depart under technical solutions of the utility model ambit, it is all new to this practicality using the methods and techniques content of the disclosure above
Type technical scheme makes many possible variations and modification, or is revised as the equivalent embodiment of equivalent variations.It is every without departing from this
The content of utility model technical scheme, any is simply repaiied according to technical spirit of the present utility model to made for any of the above embodiments
Change, equivalent variations and modification, in the range of still falling within technical solutions of the utility model protection.
Claims (10)
1. a kind of length adjustable rubber hose connection unit, it is characterised in that：Including rubber hose (1), flexible pipe nut (2) and
Cone hose coupling (3)；Described flexible pipe nut (2) one end is provided with the first internal thread (41), and the other end is provided with zigzag internal thread
(5), coaxially, the first internal thread (41) and zigzag internal thread (5) revolve for first internal thread (41) and zigzag internal thread (5)
To on the contrary, the path of the zigzag internal thread (5) is in back taper, first internal thread (41) and zigzag internal thread (5)
Between be provided with undercut (21)；The cone hose coupling (3) includes cylindrical section (301) and conical section (302), the cylindrical section
(301) and conical section (302) coaxially, one end that the cylinder of the cylindrical section (301) is connected with conical section (302) is provided with outside first
Screw thread (42), first external screw thread (42) matches with the first internal thread (41)；The rubber hose (1) is by zigzag
Screw thread (5) is screwed in flexible pipe nut (2), and the cone hose coupling (3) enters flexible pipe nut (2) through hole from conical section (302),
Conical section (302) cone enters in flexible pipe nut (2), and the cone hose coupling (3) passes through the first external screw thread (42) and first
Screwing for internal thread (41) is connected fastening with flexible pipe nut (2), the sealing formed between rubber hose (1) and flexible pipe nut (2)；Institute
Cylindrical section (301) openend for stating cone hose coupling (3) is connected by connector device with pipeline.
2. length adjustable rubber hose connection unit according to claim 1, it is characterised in that：The conical section
(302) guide cone (303) is provided with, the guide cone (303) and conical section (302) are coaxial.
3. length adjustable rubber hose connection unit according to claim 2, it is characterised in that：The guide cone
(303) axial length is 3~4mm, and the small end outside diameter of the guide cone (303) is smaller than the internal diameter of rubber hose (1)
0.8~1mm.
4. length adjustable rubber hose connection unit according to claim 2, it is characterised in that：The guide cone
(303) smallest end is cylindrical to be provided with seamed edge (32) between through hole.
5. length adjustable rubber hose connection unit according to claim 1, it is characterised in that：Spiral shell in the zigzag
Line (5) is being axially that aperture is small in the path of reverse taper, i.e. screw thread, central diameter, top footpath, and the inside is big, and cone angle is 3 °~4 °.
6. length adjustable rubber hose connection unit according to claim 1, it is characterised in that：Spiral shell in the zigzag
Large diameter-ratio rubber hose (1) big 0.8~1mm of external diameter in the small end aperture cone hole of line (5), the small end of zigzag internal thread (5)
External diameter small 1.5~2mm of the internal diameter of aperture cone than rubber hose (1).
7. length adjustable rubber hose connection unit according to claim 1, it is characterised in that：The undercut (21)
The big 0.8~1mm in big footpath that holds greatly of aperture ratio zigzag internal thread (5), the axial length of undercut (21) is spiral shell in zigzag
1~1.5 times of line (5) pitch.
8. the length adjustable rubber hose connection unit according to claim any one of 1-7, it is characterised in that：The company
Piecing devices include pipe joint (6) and pipe nut (7), and cylindrical section (301) openend of the cone hose coupling (3) is provided with shoulder
Platform (33), the shoulder (33) is cylinder；Described pipe joint (6) one end is provided with the second external screw thread (82), provided with the second outer spiral shell
The end face of line (82) one end is provided with counterbore (61), the counterbore (61) and is provided with O-ring seal (9)；The pipe nut (7) sets
There is the second internal thread (81), second internal thread (81) and the second external screw thread (82) match；The cone hose coupling (3)
It is inserted in pipe nut (7) hole, pipe nut (7) is tightened by the second internal thread (81) and the second external screw thread (82) and connect cone flexible pipe
The shoulder (33) of head (3) is pressed on the end face of pipe joint (6), forms sealing；The other end of the pipe joint (6) is provided with screw thread
It is threadedly coupled with connecting line.
9. length adjustable rubber hose connection unit according to claim 8, it is characterised in that：The shoulder (33)
Path small 0.2~0.3mm of the diameter than the second internal thread (81) of pipe nut (7).
10. length adjustable rubber hose connection unit according to claim 8, it is characterised in that：The cylindrical section
(301) aperture small 0.2~0.3mm of the diameter of cylinder than the minimum vias of pipe nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720115962.0U CN206496128U (en) | 2017-02-08 | 2017-02-08 | A kind of length adjustable rubber hose connection unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720115962.0U CN206496128U (en) | 2017-02-08 | 2017-02-08 | A kind of length adjustable rubber hose connection unit |
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| CN206496128U true CN206496128U (en) | 2017-09-15 |
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| CN201720115962.0U Active CN206496128U (en) | 2017-02-08 | 2017-02-08 | A kind of length adjustable rubber hose connection unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641529A (en) * | 2017-02-08 | 2017-05-10 | 南京尚爱机械制造有限公司 | Length-adjustable rubber hose connecting unit |
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2017
- 2017-02-08 CN CN201720115962.0U patent/CN206496128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641529A (en) * | 2017-02-08 | 2017-05-10 | 南京尚爱机械制造有限公司 | Length-adjustable rubber hose connecting unit |
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