CN102847254B - Portable water hose interface and production method thereof - Google Patents

Portable water hose interface and production method thereof Download PDF

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Publication number
CN102847254B
CN102847254B CN201210295176.5A CN201210295176A CN102847254B CN 102847254 B CN102847254 B CN 102847254B CN 201210295176 A CN201210295176 A CN 201210295176A CN 102847254 B CN102847254 B CN 102847254B
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core pipe
fixed cover
elastic seal
seal cartridge
water hose
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CN102847254A (en
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徐宇飞
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Hangzhou Fuyang Yongming fire equipment factory
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Abstract

The invention relates to fire fighting equipment, in particular to a small-caliber portable fire fighting hose joint and a production method thereof. This light tap area interface, including core pipe and water hose, the core pipe include connector and spliced pole, the outside cover of the spliced pole of core pipe is equipped with the elastic sealing cover, the surface and the elastic sealing cover internal surface interference fit of the spliced pole of core pipe, the elastic sealing cover be located between water hose and the core pipe, the outside cover of water hose area department is equipped with fixed cover, the lateral wall of fixed cover on be provided with the axial withhold muscle of a plurality of. The fixing structure has the advantages of effectively enhancing the fixing firmness of the water hose and the core pipe, avoiding the water hose and the core pipe from being disengaged, enhancing the sealing performance of the interface of the water hose, facilitating the production and the like.

Description

Portable water hose joint and production method thereof
Technical field
The present invention relates to a kind of fire-fighting equipment, especially relate to a kind of small-bore light fire hose interface and production method thereof.
Background technology
In existing fire-fighting equipment, have the small-bore rotary hose of a class, GB diameter is 25mm.This class small-bore light fire hose band mouth place mounting core pipe, core pipe can install the device such as tap or joint.The fixed form of core pipe and rotary hose usually adopts iron wire to carry out binding and fixes, this fixed form sealing is poor, firmness is low, when hydraulic pressure is larger, easily causes iron wire to be out of shape, core pipe and rotary hose junction easily leak, and core pipe and rotary hose are easily threaded off.Also have the fixed form of a kind of core pipe and rotary hose to adopt radial texture to cooperatively interact, but due to rotary hose be flexible material, the fitness of rotary hose and core tube-surface is lower, sealing is poor.
As Chinese patent notification number is: CN201997026U, on October 5th, 2011, a kind of fire hose of bulletin connected binding apparatus, comprise base, winding part, limit part and winding silk supply portion, winding part is arranged on base, limit part is arranged on and is wound around partly upper and is fixed on base by limit pull rod, is wound around silk supply portion and is fixed on base.The fire hose coupling be wound around on part and main shaft rotates, and winding silk is wrapped on fire hose by limit part.This patent adopts and is wound around silk and is wound around water hose joint part, and when hydraulic pressure is larger, easily cause and be wound around silk fracture or thread off, rotary hose is flexible material, and smooth surface, frictional force are little, and the firmness be fastened is low, sealing is poor.
Summary of the invention
The present invention mainly for existing small-bore Portable water hose joint place core pipe and rotary hose fitness is lower, fixing firmness is low, sealing is poor, easily cause core pipe and rotary hose junction to leak and the problem such as dropout, provide a kind of and effectively can strengthen firmness that rotary hose and core pipe fix, avoid rotary hose and core pipe thread off, strengthen water hose joint place sealing, be convenient to the Portable water hose joint of producing and production method thereof.
Object of the present invention is mainly achieved by following proposal: a kind of Portable water hose joint, comprise core pipe and rotary hose, described core pipe comprises connector and joint pin, the outside of the joint pin of core pipe is arranged with elastic seal cartridge, the outer surface of the joint pin of core pipe and elastic seal cartridge inner surface interference fit, described elastic seal cartridge is between rotary hose and core pipe, the outer cover at rotary hose band mouth place is provided with fixed cover, and what the sidewall of described fixed cover is provided with several axis withholds muscle.Core pipe is made up of connector and joint pin, can connecting tap or the joint that is connected with fire hydrant on connector, and the band mouth that joint pin inserts rotary hose is inner.Overlap flexible sealing shroud in the outside of joint pin, elastic seal cartridge is between rotary hose and core pipe, and the joint pin interference fit of elastic seal cartridge and core pipe, strengthens the sealing between elastic seal cartridge and core pipe.Outside the band mouth place of rotary hose, cover has fixed cover, the sidewall of fixed cover is withheld be formed with some axis withhold muscle, withhold the moieties into close laminating rotary hose between muscle and rotary hose is pressed on elastic seal cartridge outer surface for adjacent two, elastic seal cartridge can not only be made to clamp the joint pin of core pipe, and fixed cover inner surface and elastic seal cartridge outer surface clamp rotary hose, avoid causing rotary hose and core pipe to thread off because hydraulic pressure is excessive.Namely enhance the firmness that rotary hose is connected with core pipe, and strengthen the sealing of rotary hose and core pipe junction.Elastic seal cartridge self has elasticity, can not only play the effect of support, and can play the effect of sealing between rotary hose and core pipe.Elastic seal cartridge can avoid rotary hose directly to contact with core pipe, strengthens the fiting effect between rotary hose and elastic seal cartridge and between elastic seal cartridge and core pipe.Elastic seal cartridge can adopt elastomeric material to make, and fixed cover can adopt metal material to make.
As preferably, described fixed cover is provided with spacing anchor ring near one end of the connector of core pipe, described spacing anchor ring is positioned at fixed cover radial direction, the annular diameters of described spacing anchor ring is less than the external diameter of elastic seal cartridge, and the outer shroud edge of described spacing anchor ring is fixedly connected with fixed cover outer surface.Fixed cover arranges the spacing anchor ring of radial direction near one end of the connector of core pipe, the annular diameters of spacing anchor ring is less than the external diameter of elastic seal cartridge, when fixed cover is set in outside rotary hose, spacing anchor ring can carry out spacing to the elastic seal cartridge of rotary hose band mouth inside, due to joint pin and the elastic seal cartridge interference fit of core pipe, therefore, when pulling the connector of core pipe, spacing anchor ring on fixed cover can stop elastic seal cartridge, avoid core pipe and elastic seal cartridge to pull out in rotary hose, prevent core pipe and elastic seal cartridge and rotary hose from threading off.
As preferably, the inner annular edge of described spacing anchor ring is provided with flange, and described flange is parallel with fixed cover outer surface.The inner annular edge of spacing anchor ring is provided with flange, and flange is parallel with fixed cover outer surface, and flange can strengthen the structural strength of spacing anchor ring, avoids spacing ring facial disfigurement, strengthens the limit effect of spacing anchor ring.
As preferably, the section thickness of described fixed cover, spacing anchor ring is identical.The section thickness of fixed cover, spacing anchor ring is identical, and fixed cover and the integrated technique of spacing anchor ring can be made to be made.
As preferably, described muscle of withholding evenly is distributed on the sidewall of fixed cover around the axle center of fixed cover.Withholding muscle is evenly distributed on the sidewall of fixed cover around the axle center of fixed cover, make to withhold that muscle applies rotary hose, elastic seal cartridge and core pipe withholds the axle center of pressure uniform around water hose joint place, strengthen the fastness that each parts in water hose joint place connect.
As preferably, the outer surface of described core pipe joint pin is provided with some pawls, and described pawl comprises the guiding conical surface, connects cylinder and anticreep plane, the radial direction of described anticreep plane parallel core pipe.Arrange some pawls at the outer surface of core pipe joint pin, when the joint pin of core pipe inserts elastic seal cartridge, the guiding conical surface can play guide effect, and the joint pin being convenient to core pipe coaxially inserts in elastic seal cartridge; Connect cylinder can with elastic seal cartridge interference fit, strengthen the sealing between elastic seal cartridge and core pipe joint pin; Anticreep plane can strengthen elastic seal cartridge inner surface and be connected frictional force between outer surface with core pipe, avoids causing core pipe and elastic seal cartridge to thread off because hydraulic pressure is excessive.
As preferably, the joint pin length of described core pipe is less than or equal to the length of elastic seal cartridge, and the length of described elastic seal cartridge is more than or equal to the length of fixed cover.In order to strengthen firmness that elastic seal cartridge is connected with core pipe joint pin and ensure to seal, the length of core pipe joint pin is made to be less than or equal to the length of elastic seal cartridge.Because adjacent two parts of withholding between muscle on fixed cover sidewall clamp rotary hose jointly with elastic seal cartridge outer surface, therefore, make the length of elastic seal cartridge be more than or equal to the length of fixed cover, strengthen the firmness that fixed cover is fixed rotary hose and elastic seal cartridge.
As preferably, the thickness of described elastic seal cartridge is 1mm-3mm.The thickness of elastic seal cartridge, between 1mm to 3mm, can make elastic seal cartridge play the effect of support, and can be convenient to elastic seal cartridge compressive deformation.
A production method for above-mentioned Portable water hose joint, production method step is as follows: the inside of 1, elastic seal cartridge being inserted rotary hose band mouth place; 2, fixed cover is enclosed within the outside at rotary hose band mouth place; 3, the joint pin of core pipe is expressed to elastic seal cartridge inside; What 4, apply interval to the outer surface of the sidewall of fixed cover withholds pressure, and the interval of withholding pressure is withheld formation and withheld muscle on fixed cover.Elastic seal cartridge is inserted the inside at rotary hose band mouth place, the rotary hose of elastic seal cartridge to flexible material is supported.Fixed cover is enclosed within the outside at rotary hose band mouth place, now, the spacing anchor ring on fixed cover can carry out spacing to the elastic seal cartridge of inside, rotary hose band mouth place again.Again the joint pin of core pipe run through the spacing anchor ring of fixed cover and be expressed to elastic seal cartridge inside, the guiding conical surface of pawl can lead, connect cylinder elastic seal cartridge is expanded and with the inner surface interference fit of elastic seal cartridge.The outer surface of fixed cover sidewall is divided into several deciles and spaced arc section face, apply to withhold pressure to each arc section face on the wall outer surface of fixed cover, the arc section be stressed is assembled facing to axle center place, and the part between adjacent two the arc section faces be stressed is formed and withholds muscle.Withholding in the shaping process of muscle, the pressure be subject to is passed to rotary hose and elastic seal cartridge by fixed cover, and elastic seal cartridge outer surface is squeezed distortion, and makes elastic seal cartridge be pressed on the joint pin of core pipe, meanwhile, elastic seal cartridge and fixed cover compress rotary hose.The rotary hose of elastic seal cartridge to flexibility is adopted to support, fixed cover sidewall withholds formation and withholds muscle, adjacent two moieties into close withheld between muscle to be fitted on rotary hose and to compress rotary hose, not only strengthen rotary hose and the firmness be connected between core pipe, and strengthen the sealing between rotary hose and core pipe.
As preferably, withhold pressure all towards the axis of fixed cover in described step 4, the described pressure withheld is 20MPa-35MPa.Because rotary hose is small-bore fire hose, and the thickness of elastic seal cartridge is between 1mm to 3mm, what apply fixed cover withholds pressure between 20MPa to 35MPa, can be formed on fixed cover sidewall and withhold muscle, can elastic seal cartridge be extruded, and fixed cover can be avoided to be pressed down.
Therefore, Portable water hose joint of the present invention and production method thereof possess following advantage: 1, sheathed elastic seal cartridge outside the joint pin of core pipe, elastic seal cartridge can not only play the effect of support to rotary hose, and the sealing that can strengthen between rotary hose and elastic seal cartridge outer surface and between core pipe joint pin and elastic seal cartridge inner surface, avoid rotary hose directly to contact with core pipe joint pin, strengthen the fitness of rotary hose and core pipe joint pin; 2, sheathed fixed cover outside rotary hose, and muscle is withheld in setting on fixed cover sidewall, withhold the moieties into close laminating rotary hose between muscle and compress rotary hose for adjacent two, the firmness that rotary hose is connected with between elastic seal cartridge and core pipe can not only be strengthened, and adjacent two can be utilized to withhold the part laminating rotary hose between muscle and compress rotary hose, strengthen the sealing between rotary hose and elastic seal cartridge, avoid the excessive rotary hose and elastic seal cartridge and core pipe of causing of hydraulic pressure to depart from; 3, fixed cover arranges spacing anchor ring near one end of core pipe connector, and spacing anchor ring can carry out spacing to the elastic seal cartridge of inside, rotary hose band mouth place; 4, the thickness of elastic seal cartridge is between 1mm-3mm, can not only ensure the intensity of the support of elastic seal cartridge, and can be convenient to elastic seal cartridge outer surface compressive deformation, strengthens the sealing of elastic seal cartridge; 5, the outer surface of fixed cover sidewall is divided into several deciles and spaced arc section face, apply to withhold pressure to each arc section face on the wall outer surface of fixed cover, the arc section be stressed is assembled facing to axle center place, part between adjacent two the arc section faces be stressed is formed and withholds muscle, withhold adjacent two moieties into close withheld between muscle in muscle forming process to be fitted on rotary hose and to compress rotary hose, be convenient to the production of water hose joint; 6, the pressure withheld fixed cover, between 20MPa-35MPa, is applicable to the production of small-bore water hose joint, can not only be formed and withhold muscle, and fixed cover can be prevented to be pressed down on fixed cover.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is the partial enlarged drawings at A place in accompanying drawing 1;
Accompanying drawing 3 is the sectional views at B-B place in accompanying drawing 1;
Accompanying drawing 4 is the decomposing schematic representations before the present invention produces.
Illustrate: 01-core pipe, 011-connector, 012-joint pin, 013-anticreep plane, 014-connects cylinder, and 015-leads the conical surface, and 02-fixed cover, the spacing anchor ring of 021-, 022-flange, 023 withholds muscle, 03-elastic seal ring, 04-rotary hose.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of Portable water hose joint, comprises core pipe 01 and rotary hose 04, and core pipe 01 to be connected the metal tube formed by connector 011 and joint pin 012 one.As shown in Figure 2, the joint pin of core pipe 01 is processed with pawl, pawl is made up of anticreep plane 013, connection cylinder 014 and the guiding conical surface 015, anticreep plane 013 is positioned on the cross section of core pipe 01, connect the axis being parallel of cylinder 014 and core pipe 01, the guiding conical surface 015 tilts towards one end away from connector 011 of joint pin 012.The joint pin 012 of core pipe 01 overlaps flexible sealing shroud 03, and the inner surface of elastic seal cartridge 03 and joint pin 012 interference fit of core pipe 01, elastic seal cartridge 03 adopts elastomeric material to be made.Elastic seal cartridge 03 is arranged on rotary hose 04 and is with mouth place, and outside the band mouth place of rotary hose 04, cover has fixed cover 02, and the length of the joint pin 012 of core pipe 01 is less than the length of elastic seal cartridge 03, and the length of elastic seal cartridge 03 equals the length of fixed cover 02.Fixed cover 02 has spacing anchor ring 021 near one end of the connector 011 of core pipe 01, and the joint pin 011 of the inner ring core tube feeding 01 of spacing anchor ring 021 runs through.The annular diameters of spacing anchor ring 021 is less than the external diameter of elastic seal cartridge 03, and have flange 022 at the inner annular edge of spacing anchor ring 021, the outer shroud edge of spacing anchor ring 021 is connected with fixed cover 02.Spacing anchor ring 021, flange 022 are identical with the section thickness of fixed cover 02, and namely spacing anchor ring 021, flange 022 and fixed cover 02 adopt the one-body molded making of panel beating.As shown in Figure 3, on the sidewall of fixed cover 02, axially having withheld eight withholds muscle 023, withholds muscle 023 for eight and evenly distributes around the axis of fixed cover 02.Withhold muscle 023 and adjacent two inner surfaces withholding the part between muscle 023 are all fitted with rotary hose 04.
A production method for above-mentioned Portable water hose joint, rotary hose 04 is small-bore lightweight rotary hose, and the diameter of rotary hose 04 is 25mm.Be the band mouth place that the elastic seal cartridge 03 of 3mm inserts rotary hose 04 by thickness, as shown in Figure 4.Outside the band mouth place again fixed cover 02 being enclosed within rotary hose 04, now, the spacing anchor ring 021 on fixed cover 02 can play position-limiting action to the elastic seal cartridge 03 in rotary hose 04.Again the joint pin 012 of core pipe 01 run through the spacing anchor ring 021 of fixed cover 02 and insert in elastic seal cartridge 03, the joint pin 012 of core pipe 01 is inserted in elastic seal cartridge 03 completely.Now, the connector 011 of core pipe 01 is fitted near one end end face of joint pin 012 and the spacing anchor ring 021 of fixed cover 02.The outer surface of fixed cover 02 sidewall is divided into eight deciles and spaced arc section face, what apply 35MPa to each arc section face on the wall outer surface of fixed cover 02 withholds pressure, withhold pressure all towards the axis of fixed cover 02, the arc section be stressed is assembled facing to axle center place, and the portion extrusion between adjacent two the arc section faces be stressed is formed and withholds muscle 023.In the process of withholding muscle 023 formation, adjacent two part of withholding between muscle 023 effects of being under pressure, reduced also compresses rotary hose 04, rotary hose 04 is under pressure and compresses elastic seal cartridge 03, elastic seal cartridge 03 compresses the joint pin 012 of core pipe 01 by natural resiliency distortion, realizes the fixing of rotary hose 04 and core pipe 01.The pressure of 35MPa can not only make adjacent two to withhold being pressed on rotary hose 04 of moieties into close between muscle 023, and fixed cover 02 can be avoided to break.
Due to elastic seal cartridge 03 and joint pin 012 interference fit of core pipe 01, elastic seal cartridge 03 can play sealing function to the joint pin 012 of core pipe 01, and the pawl of joint pin 012 outer surface can strengthen the firmness that elastic seal cartridge 03 is connected with joint pin 012.In the process of withholding muscle 023 formation, further enhancing the firmness and sealing that are connected between elastic seal cartridge 03 and the joint pin 012 of core pipe 01.Withhold muscle 023 and adjacent two parts of withholding between muscle 023 all compress rotary hose 04, rotary hose 04 is fixed with elastic seal cartridge 03 and core pipe 01, rotary hose 04 is avoided directly to contact with core pipe 01, increase the firmness connected, avoid causing because hydraulic pressure is excessive rotary hose 04 and core pipe 01 to thread off.Elastic seal cartridge 03 adopts elastomeric material, and thickness adopts 3mm, and not only itself having elasticity can strengthen sealing effectiveness; And there is certain intensity, can support the rotary hose 04 of flexibility.The connector 011 of core pipe 01 can be connected on fire hydrant, also can connecting tap.
Should be understood that this embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.

Claims (10)

1. a Portable water hose joint, comprise core pipe and rotary hose, it is characterized in that, described core pipe comprises connector and joint pin, the outside of the joint pin of core pipe is arranged with elastic seal cartridge, the outer surface of the joint pin of core pipe and elastic seal cartridge inner surface interference fit, and described elastic seal cartridge is between rotary hose and core pipe, the outer cover at rotary hose band mouth place is provided with fixed cover, and what the sidewall of described fixed cover is provided with several axis withholds muscle.
2. Portable water hose joint according to claim 1, it is characterized in that, described fixed cover is provided with spacing anchor ring near one end of the connector of core pipe, described spacing anchor ring is positioned at fixed cover radial direction, the annular diameters of described spacing anchor ring is less than the external diameter of elastic seal cartridge, and the outer shroud edge of described spacing anchor ring is fixedly connected with fixed cover outer surface.
3. Portable water hose joint according to claim 2, is characterized in that, the inner annular edge of described spacing anchor ring is provided with flange, and described flange is parallel with fixed cover outer surface.
4. Portable water hose joint according to claim 2, is characterized in that, the section thickness of described fixed cover, spacing anchor ring is identical.
5. the Portable water hose joint according to claim 1 or 2 or 3 or 4, is characterized in that, described muscle of withholding evenly is distributed on the sidewall of fixed cover around the axle center of fixed cover.
6. the Portable water hose joint according to claim 1 or 2 or 3 or 4, it is characterized in that, the outer surface of described core pipe joint pin is provided with some pawls, and described pawl comprises the guiding conical surface, connects cylinder and anticreep plane, the radial direction of described anticreep plane parallel core pipe.
7. the Portable water hose joint according to claim 1 or 2 or 3 or 4, is characterized in that, the joint pin length of described core pipe is less than or equal to the length of elastic seal cartridge, and the length of described elastic seal cartridge is more than or equal to the length of fixed cover.
8. the Portable water hose joint according to claim 1 or 2 or 3 or 4, is characterized in that, the thickness of described elastic seal cartridge is 1mm-3mm.
9., by a production method for the arbitrary described Portable water hose joint of claim 1 to 8, it is characterized in that, production method step is as follows: the inside of 1, elastic seal cartridge being inserted rotary hose band mouth place; 2, fixed cover is enclosed within the outside at rotary hose band mouth place; 3, the joint pin of core pipe is expressed to elastic seal cartridge inside; What 4, apply interval to the outer surface of the sidewall of fixed cover withholds pressure, and the interval of withholding pressure is withheld formation and withheld muscle on fixed cover.
10. the production method of Portable water hose joint according to claim 9, is characterized in that, withholds pressure all towards the axis of fixed cover in described step 4, and the described pressure withheld is 20MPa-35MPa.
CN201210295176.5A 2012-08-20 2012-08-20 Portable water hose interface and production method thereof Active CN102847254B (en)

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CN102847254B true CN102847254B (en) 2015-08-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103542213A (en) * 2013-08-19 2014-01-29 泉州市三星消防设备有限公司 Fire hose provided with press fitting buckles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201997026U (en) * 2011-02-16 2011-10-05 中国石油化工股份有限公司 Connecting and banding device for fire hoses
CN202724527U (en) * 2012-08-20 2013-02-13 徐宇飞 Portable water hose interface

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0984894A (en) * 1995-09-22 1997-03-31 Itachibori Seisakusho:Kk Hose joint for fire-fighting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201997026U (en) * 2011-02-16 2011-10-05 中国石油化工股份有限公司 Connecting and banding device for fire hoses
CN202724527U (en) * 2012-08-20 2013-02-13 徐宇飞 Portable water hose interface

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TR01 Transfer of patent right
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Patentee after: Hangzhou Fuyang Yongming fire equipment factory

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Patentee before: Xu Fengliang