CN203809915U - Hose nippler for high-pressure rubber hose bursting test - Google Patents

Hose nippler for high-pressure rubber hose bursting test Download PDF

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Publication number
CN203809915U
CN203809915U CN201420042697.4U CN201420042697U CN203809915U CN 203809915 U CN203809915 U CN 203809915U CN 201420042697 U CN201420042697 U CN 201420042697U CN 203809915 U CN203809915 U CN 203809915U
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China
Prior art keywords
core bar
hose
flexible pipe
overcoat
groove
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Active
Application number
CN201420042697.4U
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Chinese (zh)
Inventor
赵建勋
刘有超
高奇
钟艳玲
常小刚
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Yankuang Group Corp Ltd
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Yankuang Group Corp Ltd
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Priority to CN201420042697.4U priority Critical patent/CN203809915U/en
Application granted granted Critical
Publication of CN203809915U publication Critical patent/CN203809915U/en
Active legal-status Critical Current
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Abstract

The utility model discloses a hose nippler for a high-pressure rubber hose bursting test. The tube nippler comprises a metal core rod and a metal jacket which are matched with each other; the jacket sleeves a hose; the core rod is inserted into the hose; a core rod head, a core rod middle and a core rod tail are sequentially on the core rod from front to back; the core rod head is closed; the outer side of the core rod middle is provided with an annular hose clamping groove used for clamping the hose; the back of the top of the hose clamping groove is provided with a conical chamfer realizing a function of introducing the hose; the front of the top of the hose clamping groove is provided with an annular jacket clamping groove used for clamping the jacket; the outer side of the core rod tail is provided with a plurality of scale buttons used for sealing; the core rod tail is provided with a conical chamfer used for introducing the hose behind the scale buttons. The hose nippler has the beneficial effects that the hose nippler is convenient to use and easy to assemble and quickens the test efficiency, a screw plug is not required, a sealing effect is good, the other end of the hose boy is not required to be sealed any more before the test, leak points are decreased, the potential safety hazard that the traditional test plug falls off is stopped and the hose nippler is safe and reliable.

Description

A kind of high-pressure rubber pipe bursting test pipe joint
Technical field
The utility model relates to a kind of pipe joint, particularly a kind of high-pressure rubber pipe bursting test pipe joint.
Background technique
After rubber hoses with wire reinforced hydraulic type has designed or all need to carry out bursting test after certain batch production and check its load performance, before inspection, need with metal joint be combined into hose assembly then could with bursting test equipment connection.The pipe joint of test use mainly contains K type and A type at present, in its core bar, there is through hole, core bar head has draw-in groove outward, be communicated with other equipment for flexible pipe two, when test, one end is connected on blasting gear, the other end adopts corresponding plug sealing to realize the airtight of explosion body, and this mode had both increased assembly process affects test efficiency, increased again leak point and easily caused test failure, and part screw plug Reusability is easily deviate to damage burst-chamber and had potential safety hazard in experimentation.
Summary of the invention
The utility model is in order to make up the deficiencies in the prior art, provide a kind of easy to use, assembling is simple, good sealing effect, safe and reliable high-pressure rubber pipe bursting test pipe joint.
The utility model is achieved by the following technical solution:
High-pressure rubber pipe bursting test pipe joint of the present utility model, comprises the core bar cooperatively interacting and the overcoat of metal, and overcoat is enclosed within flexible pipe outside, and core bar inserts flexible pipe inside, by special crimping equipment, overcoat is shunk to the combination that realizes flexible pipe and metallic pipe coupling; On core bar, be followed successively by from front to back core bar head, core bar middle part and core bar afterbody, it is characterized in that: the sealing of core bar head; Core bar middle part outside is provided with the annular hose draw-in groove for blocking flexible pipe, flexible pipe draw-in groove top be provided with the taper chamfering that imports flexible pipe effect below, be provided with the ring-shaped jacket draw-in groove for blocking overcoat before flexible pipe draw-in groove top; Core bar afterbody outside has the some roads fish scale button for sealing, and the rear portion that core bar afterbody is positioned at fish scale button is also provided with the taper chamfering for pouring flexible pipe into; Overcoat front end is provided with inside gear along being stuck in the overcoat draw-in groove of core bar, and inner side, overcoat middle part is provided with the annular molar of the flexible pipe draw-in groove of corresponding core bar, and flexible pipe is subject to the compressing of annular molar on overcoat to enter the flexible pipe draw-in groove on core bar; Overcoat inner tail has the some roads annular denticle for blocking flexible pipe sealing.
Core bar head is cylindrical, and is positioned at the front, outside of overcoat.
The flexible pipe draw-in groove subtended angle at core bar middle part is 60 °, and the annular molar putting is outward trapezoidal tooth.
There is the loss of weight blind hole from afterbody opening core bar inside.
The beneficial effects of the utility model are, easy to use, assembling is simple, accelerate conventional efficient, do not need screw plug, good sealing effect, is not easy to cause test failure, makes to test the front body the other end without sealing again, reduce leak point, stop the potential safety hazard of deviating from of traditional experiment plug, safe and reliable, be mainly used in rubber hoses with wire reinforced hydraulic type.
Brief description of the drawings
Fig. 1 is traditional K type joint schematic diagram.Fig. 2 is silently bursting test pipe joint schematic diagram of the present utility model.Fig. 3 is core bar schematic diagram.Fig. 4 is overcoat schematic diagram.
In figure, 1 core bar head, 2 core bar afterbodys, 3 core bar middle parts, 4 overcoats, 5 core bars, 6 outer glue-lines, 7 steel wire reinforcement layers, 8 inner glue layers, 9 flexible pipe draw-in grooves, 10 annular molars, 11 taper chamferings, 12 overcoat draw-in grooves, 13 fish scale buttons, 14 taper chamferings, 15 gear edges, 16 annular denticles, 17 blind holes.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
High-pressure rubber pipe bursting test pipe joint of the present utility model, comprise the core bar cooperatively interacting 5 and the overcoat 4 of metal, overcoat is enclosed within flexible pipe outside, and core bar inserts flexible pipe inside, by special crimping equipment, overcoat is shunk to the combination that realizes flexible pipe and metallic pipe coupling; On core bar, be followed successively by from front to back core bar head 1, core bar middle part 2 and core bar afterbody 3, the sealing of core bar head; Core bar middle part outside is provided with the annular hose draw-in groove 9 for blocking flexible pipe, flexible pipe draw-in groove top be provided with the taper chamfering 11 that imports flexible pipe effect below, be provided with the ring-shaped jacket draw-in groove 12 for blocking overcoat before flexible pipe draw-in groove top; Core bar afterbody outside has the some roads fish scale button 13 for sealing, and the rear portion that core bar afterbody is positioned at fish scale button is also provided with the taper chamfering 14 for pouring flexible pipe into; Overcoat front end is provided with inside gear and is stuck in the overcoat draw-in groove of core bar along 15, and inner side, overcoat middle part is provided with the annular molar 10 of the flexible pipe draw-in groove of corresponding core bar, and flexible pipe is subject to the compressing of annular molar on overcoat to enter the flexible pipe draw-in groove on core bar; Overcoat inner tail has the some roads annular denticle 16 for blocking flexible pipe sealing.Core bar head is cylindrical, and is positioned at the front, outside of overcoat.The flexible pipe draw-in groove subtended angle at core bar middle part is 60 °, and the annular molar putting is outward trapezoidal tooth.There is the blind hole 17 for loss of weight from afterbody opening core bar inside.The sealing of core bar head, suffocate in top, makes to test front body one end without sealing again, reduced leak point, stopped the potential safety hazard that traditional experiment plug is deviate from.
Or outside, core bar middle part is provided with annular molar, the annular groove that overcoat inner side is provided with corresponding annular molar, can play the effect that prevents flexible pipe slippage equally.
Core bar afterbody is seal section, has a lot of fish scale button, after glue in sebific duct is squeezed, cold flow occurs, and is filled into and in the groove of fish scale button, realizes sealing; The anti-pull-off section in core bar middle part, having one U-shaped groove is flexible pipe draw-in groove, and groove depth is about according to specification difference, and groove subtended angle is 60 ° of left and right, and the wide L1 of groove bottom is 4-6mm.The crest of the annular molar of overcoat is loose than the little 1mm of core bar hose clip well width.Fish scale button is exactly some roads ring packing sheet or seal rings side by side, if diaphragm seal, can be to lopsidedness.
When use, peel sebific duct inner glue layer 8 off one section, the inside of flose wire enhancement layer 7 is exposed, peel outer sebific duct glue-line 6 off one section, the outside of steel wire reinforcement layer is exposed, now only remaining steel wire reinforcement layer of the front end of sebific duct, joint overcoat is enclosed within to the sebific duct termination of having shelled inside and outside glue, then joint core bar is inserted, use crimping equipment to require outer cover locking according to interior glue decrement, now steel wire reinforcement layer is subject to the compressing of the trapezoidal tooth of overcoat, enter the U-shaped groove on core bar, realize the anti-pull-off function of pipe joint.Bursting test pipe joint of the present utility model is installed in sebific duct one end, and encapsulation is good, and the other end is installed traditional pipe joint, for connecting blasting gear.

Claims (4)

1. a high-pressure rubber pipe bursting test pipe joint, comprises the core bar cooperatively interacting and the overcoat of metal, and overcoat is enclosed within flexible pipe outside, and core bar inserts flexible pipe inside, by special crimping equipment, overcoat is shunk to the combination that realizes flexible pipe and metallic pipe coupling; On core bar, be followed successively by from front to back core bar head, core bar middle part and core bar afterbody, it is characterized in that: the sealing of core bar head; Core bar middle part outside is provided with the annular hose draw-in groove for blocking flexible pipe, flexible pipe draw-in groove top be provided with the taper chamfering that imports flexible pipe effect below, be provided with the ring-shaped jacket draw-in groove for blocking overcoat before flexible pipe draw-in groove top; Core bar afterbody outside has the some roads fish scale button for sealing, and the rear portion that core bar afterbody is positioned at fish scale button is also provided with the taper chamfering for pouring flexible pipe into; Overcoat front end is provided with inside gear along being stuck in the overcoat draw-in groove of core bar, and inner side, overcoat middle part is provided with the annular molar of the flexible pipe draw-in groove of corresponding core bar, and flexible pipe is subject to the compressing of annular molar on overcoat to enter the flexible pipe draw-in groove on core bar; Overcoat inner tail has the some roads annular denticle for blocking flexible pipe sealing.
2. high-pressure rubber pipe bursting test pipe joint according to claim 1, is characterized in that: core bar head is cylindrical, and is positioned at the front, outside of overcoat.
3. high-pressure rubber pipe bursting test pipe joint according to claim 1 and 2, is characterized in that: the flexible pipe draw-in groove subtended angle at core bar middle part is 60 °, and the annular molar putting is outward trapezoidal tooth.
4. high-pressure rubber pipe bursting test pipe joint according to claim 1 and 2, is characterized in that: there is the loss of weight blind hole from afterbody opening core bar inside.
CN201420042697.4U 2014-01-23 2014-01-23 Hose nippler for high-pressure rubber hose bursting test Active CN203809915U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420042697.4U CN203809915U (en) 2014-01-23 2014-01-23 Hose nippler for high-pressure rubber hose bursting test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420042697.4U CN203809915U (en) 2014-01-23 2014-01-23 Hose nippler for high-pressure rubber hose bursting test

Publications (1)

Publication Number Publication Date
CN203809915U true CN203809915U (en) 2014-09-03

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Application Number Title Priority Date Filing Date
CN201420042697.4U Active CN203809915U (en) 2014-01-23 2014-01-23 Hose nippler for high-pressure rubber hose bursting test

Country Status (1)

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CN (1) CN203809915U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065821A (en) * 2015-07-31 2015-11-18 西安斯通管业有限公司 Pipe joint for flexible high-pressure composite conveying pipe
CN109555923A (en) * 2018-10-17 2019-04-02 南京利德东方橡塑科技有限公司 A kind of connection structure for R744 air conditioning hose assembly pipe fitting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065821A (en) * 2015-07-31 2015-11-18 西安斯通管业有限公司 Pipe joint for flexible high-pressure composite conveying pipe
CN109555923A (en) * 2018-10-17 2019-04-02 南京利德东方橡塑科技有限公司 A kind of connection structure for R744 air conditioning hose assembly pipe fitting

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