CN207729102U

CN207729102U - A kind of fFour piece type high-pressure rubber hose coupling

Info

Publication number: CN207729102U
Application number: CN201721486660.0U
Authority: CN
Inventors: 李文书
Original assignee: Yancheng Minghui Hydraulic Co Ltd
Current assignee: Yancheng Minghui Hydraulic Co Ltd
Priority date: 2017-11-09
Filing date: 2017-11-09
Publication date: 2018-08-14
Anticipated expiration: 2027-11-09

Abstract

The utility model is related to a kind of fFour piece type high-pressure rubber hose couplings, including sebific duct core, sebific duct core inner is equipped with first through hole, sebific duct core includes the insertion tube for being in turn connected into integral structure, coupling tube and ring washer, it is inserted into pipe outer wall and is equipped with several concave rings, the first inner wall and the second inner wall of concave ring are obliquely installed with insertion pipe outer wall, it is fixed that at least two external locks are equipped with outside insertion tube, outer locking is put on equipped with the second through-hole and several connecting holes, second through-hole section is in truncated cone-shaped structure, interior clamping sleeve is equipped between second through-hole and insertion tube, interior clamping sleeve includes four limbs being distributed in a ring, nut is equipped with outside coupling tube；The utility model structure novel is compact; it is reasonable in design; it is easy to use; using splicing structure, have simple in structure, manufacture is easy to loading and unloading; the characteristics of applicability is extremely strong, resistance to high burst pressure power; only a people can fast install, and system worked well pressure is reached after installation, and suitable for scale production and random length tubing safety stablizes installation.

Description

A kind of fFour piece type high-pressure rubber hose coupling

Technical field

The utility model is related to a kind of fFour piece type high-pressure rubber hose coupling, the pipe fitting technical field.

Background technology

In the pipeline of the fluid conveyings such as hydraulic drive, other than using steel pipe, rubber tube is also often applied.High pressure resistant, The wire braided hose of oil resistant mass production, but at present these sebific ducts due to equipment, technique of each sebific duct factory etc. no Together, the outer diameter for the same nominal bore diameter sebific duct that they are produced is variant, cause rubber hose coupling modular in design, at Criticizing production and the work of assembly glue pipe, there is various difficulties.Generally rational structure type, ruler can be had by being intended to rubber hose coupling It is very little, so as to centralized production, the sebific duct of the dimension of most of sebific duct factory production can be substantially mixed again, and is assembled and disassembled and also wanted It is convenient, but high-pressure rubber hose coupling in the prior art includes the installation form etc. of the tightening of the band of three-clove style, hoop, needs more people auxiliary Installation is helped, and stripping rubber layer is needed to reuse, cumbersome, difficult to load and unload, there is also joint area compressive resistance energy force differences, cause It is unreliable to work, and the defect of adjusting work pressure is needed when high-pressure oil pipe accesses, it would be highly desirable to improve.

Utility model content

The purpose of this utility model is in view of the drawbacks of the prior art, to provide a kind of fFour piece type high-pressure rubber hose coupling, is used Splicing structure has the characteristics of simple in structure, manufacture is easy to loading and unloading, and applicability is extremely strong, resistance to high burst pressure power, and only a people can be fast Victory installation, reaches system worked well pressure after installation, suitable for scale production and random length tubing safety stablizes installation.

The utility model is achieved by the following technical solutions：

A kind of fFour piece type high-pressure rubber hose coupling, including sebific duct core, wherein the sebific duct core inner is equipped with first through hole, institute It includes the insertion tube for being in turn connected into integral structure, coupling tube and ring washer to state sebific duct core, if the insertion pipe outer wall is equipped with Dry concave ring, several concave rings are coaxial with first through hole and uniform intervals are arranged, by the top of insertion tube to bottom direction, the concave ring according to Secondary have the first inner wall and the second inner wall, is connected at the top of first inner wall bottom and the second inner wall, and with insertion pipe outer wall It is obliquely installed；

It is fixed that at least two external locks are equipped with outside the insertion tube, the outer locking is put on equipped with the second through-hole and several Connecting hole, second through-hole are coaxially disposed with first through hole, and section is in truncated cone-shaped structure, second through-hole and insertion tube Between be equipped with interior clamping sleeve, the interior clamping sleeve outer wall and the second shape of through holes coordinate, and the interior clamping sleeve including dividing in a ring Four limbs of cloth, adjacent limb sidewall shape cooperation, several connecting holes are around the uniform intervals setting in one week of the second through-hole, the mistake It crosses and is equipped with nut outside pipe.

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein the spacing between adjacent concave ring is d1, first inner wall top Vertical range between portion and the second inner wall bottom is d2, d1:d2=1:( 6~7).

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein the shaft section length of first inner wall is less than the second inner wall Shaft section length.

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein first inner wall and the inclination being inserted between pipe outer wall are pressed from both sides Angle a is 60 °.

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein the cone angle e of second through-hole is 15 ° ± 0.5 °.

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein the limb is equipped with several arc grooves, and several arcs are recessed Slot is coaxial with first through hole, and uniform intervals are arranged.

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein the maximum gauge of second through-hole is d3, the interior compression Set bottom width is d4, d3>D4, it is preferable that d3-d4=2.5 ~ 4mm.

Above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, wherein the transition pipe outer wall is equipped with protrusion, is set in the nut There are screw hole and third through-hole, the diameter of the screw hole to be more than the diameter of third through-hole, the third through-hole inner wall and raised outer wall Shape coordinates, and the top and bottom of the screw hole, third through-hole and the second through-hole is equipped with chamfer groove.

A kind of above-mentioned fFour piece type high-pressure rubber hose coupling, wherein it is equipped with the first bevel edge at the top of the insertion tube, described first The angle b of bevel edge and insertion tube top surface is 70 ~ 75 °, and the nut top and bottom are equipped with the second bevel edge, described the The angle c of two bevel edges and nut side wall is 30 °.

The beneficial effects of the utility model are：

The utility model structure novel is compact, reasonable in design, easy to use, and using sebific duct core, external lock is fixed, internal pressure Fixed and nut constitutes cooperation splicing structure, it is only necessary to be inserted into the insertion pipe portion of sebific duct core after cutting off high-pressure rubber pipe, be inserted at least External lock is fixed, and the interior clamping sleeve of four valve structures is fixed to whole insertion external lock interior, and sebific duct is pressed abd fixed on several concave rings, recessed Ring uses special the first inner wall of inclination and the second interior wall construction, then to tighten nut, band, the hoop of previous three-clove style The installation form of tightening is convenient and efficient very much, it is only necessary to which a people is individually operated to complete；While woth no need to be withheld as tradition Hose assembly needs to shell rubber layer, and until it can not twist eastern nut, pressure just has reached service pressure at this time, passes through Multiple impact highest burst pressure test performance is excellent, and dimensional structure is suitable for scale production, can need reality according to scene Existing random length tubing safety stabilization is installed and used.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model.

Fig. 2 is the fixed present invention looks up structural representation of the utility model external lock.

Fig. 3 is the utility model internal pressure tight tube structure schematic diagram.

Fig. 4 is the utility model nut structure diagram.

（In figure, sebific duct core 1, first through hole 2, insertion tube 3, coupling tube 4 and ring washer 5, concave ring 6, the first inner wall 7 and second Inner wall 8, external lock fixed 20, the second through-hole 9, connecting hole 10, interior clamping sleeve 11, limb 12, arc groove 13, nut 14, protrusion 15, screw hole 16, third through-hole 17, the first bevel edge 18, the second bevel edge 19, chamfer groove 21）.

Specific implementation mode

Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.

A kind of fFour piece type high-pressure rubber hose coupling, including sebific duct core 1, wherein the sebific duct core 1 is internally provided with first through hole 2, The sebific duct core 1 includes being in turn connected into insertion tube 3, coupling tube 4 and the ring washer 5 of integral structure, on 3 outer wall of the insertion tube Equipped with several concave rings 6, several concave rings 6 are coaxial with first through hole 2 and uniform intervals are arranged, by 3 top of insertion tube to bottom direction, There is the concave ring 6 first inner wall 7 and the second inner wall 8,7 bottom of the first inner wall to be connected with 8 top of the second inner wall successively, and It is obliquely installed with 3 outer wall of insertion tube；

Spacing between adjacent concave ring 6 is d1, first inner wall, 7 top it is vertical between 8 bottom of the second inner wall away from From for d2, d1:d2=1:(6 ~ 7), the shaft section length of first inner wall 7 are less than the shaft section length of the second inner wall 8, institute It is 60 ° to state the slanted angle a between 3 outer wall of the first inner wall 7 and insertion tube,

Set outside the insertion tube 3 there are two external lock fixed 20, if the external lock fixed 20 be equipped with the second through-hole 9 and Dry connecting hole 10, second through-hole 9 are coaxially disposed with first through hole 2, and section is in truncated cone-shaped structure, second through-hole 9 Cone angle e be 15 ° ± 0.5 °, the maximum gauge of second through-hole 9 is d3；

Interior clamping sleeve 11 is equipped between second through-hole 9 and insertion tube 3,11 bottom width of interior clamping sleeve is d4, d3>D4, it is preferable that d3-d4=2.5 ~ 4mm, 11 outer wall of interior clamping sleeve and 9 shape of the second through-hole coordinate, the interior clamping sleeve 11 include four limbs 12 being distributed in a ring, and the cooperation of 12 sidewall shape of adjacent limb, the limb 12 is equipped with several arcs Groove 13, several arc grooves 13 and first through hole 2 are coaxial, and uniform intervals are arranged, and several connecting holes 10 are around the second through-hole 9 one All uniform intervals settings, 4 outside of the coupling tube are equipped with nut 14；

4 outer wall of the coupling tube is equipped with protrusion 15, and screw hole 16 and third through-hole 17, the spiral shell are equipped in the nut 14 The diameter in hole 16 is more than the diameter of third through-hole 17, and 17 inner wall of the third through-hole coordinates with raised 15 outer wall shapes, the spiral shell The top and bottom in hole 16, third through-hole 17 and the second through-hole 9 is equipped with chamfer groove；

3 top of the insertion tube is equipped with the first bevel edge 18, the angle of first bevel edge 18 and 3 top surface of insertion tube B is 70 ~ 75 °, and 14 top and bottom of the nut are equipped with the second bevel edge 19, second bevel edge 19 and 14 side wall of nut Angle c be 30 °；

Further, a kind of above-mentioned fFour piece type high-pressure rubber hose coupling, constituent are by weight percentage：Carbon is 0.17 ~ 0.22%, manganese be 0.35 ~ 0.65%, phosphorus≤0.04%, sulphur≤0.04%, nickel≤0.25%, chromium≤0.25%, silicon be 0.17 ~ 0.37%, copper≤0.20%, remaining is iron；FFour piece type high-pressure rubber hose coupling is subjected to measuring mechanical property, measuring hardness is 156HB, tensile strength are >=250Mpa, and yield strength is >=250Mpa, and elongation >=25%, area reduction >=55% is free of Lead does not discharge noxious material, and health, wearability is good, and ageing-resistant service life is long, is not damaged by ultraviolet radiation.

Further, above-mentioned a kind of fFour piece type high-pressure rubber hose coupling, the sebific duct core 1, external lock be fixed 20, interior clamping sleeve 11 It is equipped with corrosion-inhibiting coating outside with nut 14, the corrosion-inhibiting coating heats copolymer glue by epoxy resin 593, and silica is modified Polypropylene powder, curing agent YH-82 is in mass ratio：25:（30~34）：（10~12）:5:3 compositions；With raw material, color, appearance, The advantages of performance is stablized, non-corrosive non-scaling, corrosion.

The working method of the utility model is：

After high-pressure rubber pipe is cut off, it is inserted into outside the insertion tube 3 of sebific duct core 1, two external locks fixed 20 is put on, by four valves Piece 12 is inserted into whole in the second through-hole 9 of external lock fixed 20, forms interior clamping sleeve 11, high-pressure rubber pipe is fixed on several concave rings 6 Between the arc groove 13 of limb 12, using angle and be dimensioned so that 3 structure of insertion tube facilitate machining manufacture, save at This, sebific duct insertion is smooth, keeps high-pressure rubber pipe fixed on sebific duct core 1, prevents high-pressure rubber pipe from slipping；Due to the cone of the second through-hole 9 Angle e is 15 ° ± 0.5 °, and d3>D4 makes 11 outer rim of interior clamping sleeve protrude from external lock fixed 20, is inserted not only through conveniently, also passes through interior Clamping sleeve 11 fixed to adjacent external lock 20 squeezes locking, passes through the partial pressure locking of connecting hole 10 with bolt, is then twisted with die nut Tight nut 14, only seals high-pressure rubber pipe end, and until twisting motionless by hand, pressure just has reached service pressure at this time, Can be according to live needs, the oil pipe of random length carries out erection joint, and safety and stability uses, and a people is individually operated can be complete At.

Hose assembly after connection is subjected to multiple high burst pressure power experiment, test(ing) medium：Compressed air, water, ethylene glycol, Mineral oil, brake fluid, gear box oil etc., pulse：1 ~ 200mpa（It can be adjusted with precision）, rate of pressure rise：0~120MPa/ S, pulse frequency is adjustable, trapezoidal wave, triangular wave, etc. pressure impulse waveform, highest burst pressure acquisition experiment in prove situation it is good It is good, achieve the purpose that reliable operation, simple structure, convenient loading and unloading.

The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should all cover within the protection scope of the present utility model.Therefore, the scope of protection of the utility model should be with Subject to the protection domain of claims.

Claims

1. a kind of fFour piece type high-pressure rubber hose coupling, including sebific duct core, it is characterized in that, the sebific duct core inner is equipped with first through hole, The sebific duct core includes the insertion tube for being in turn connected into integral structure, coupling tube and ring washer, and the insertion pipe outer wall is equipped with Several concave rings, several concave rings are coaxial with first through hole and uniform intervals are arranged, by insertion tube top to bottom direction, the concave ring There is the first inner wall and the second inner wall, first inner wall bottom and the second inner wall top to be connected successively, and with outside insertion tube Wall is obliquely installed；

Fixed equipped at least two external locks outside the insertion tube, the outer locking is put on equipped with the second through-hole and several connections Hole, second through-hole are coaxially disposed with first through hole, and section is in truncated cone-shaped structure, between second through-hole and insertion tube Equipped with interior clamping sleeve, the interior clamping sleeve outer wall and the second shape of through holes coordinate, and the interior clamping sleeve includes being distributed in a ring Four limbs, adjacent limb sidewall shape cooperation, several connecting holes are around the uniform intervals setting in one week of the second through-hole, the coupling tube Outside is equipped with nut.

2. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, the spacing between adjacent concave ring is D1, the vertical range at the top of first inner wall between the second inner wall bottom are d2, d1: d2=1: (6~7).

3. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, the shaft section of first inner wall is long Shaft section length of the degree less than the second inner wall.

4. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, outside first inner wall and insertion tube Slanted angle a between wall is 60 °.

5. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, the cone angle e of second through-hole is 15°±0.5°。

6. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, the limb is equipped with several arcs Groove, several arc grooves and first through hole are coaxial, and uniform intervals are arranged.

7. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, the maximum gauge of second through-hole For d3, the interior clamping sleeve bottom width is d4, d3 ＞ d4, d3-d4=2.5~4mm.

8. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, the transition pipe outer wall is equipped with convex It rises, screw hole and third through-hole is equipped in the nut, the diameter of the screw hole is more than the diameter of third through-hole, the third through-hole Inner wall coordinates with raised outer wall shape, and the top and bottom of the screw hole, third through-hole and the second through-hole is equipped with chamfer groove.

9. a kind of fFour piece type high-pressure rubber hose coupling as described in claim 1, it is characterized in that, first is equipped at the top of the insertion tube The angle b of bevel edge, first bevel edge and insertion tube top surface is 70~75 °, and the nut top and bottom are equipped with The angle c of second bevel edge, second bevel edge and nut side wall is 30 °.