CN113007473A - High joint strength's flexible hose assembly - Google Patents
High joint strength's flexible hose assembly Download PDFInfo
- Publication number
- CN113007473A CN113007473A CN202110173764.0A CN202110173764A CN113007473A CN 113007473 A CN113007473 A CN 113007473A CN 202110173764 A CN202110173764 A CN 202110173764A CN 113007473 A CN113007473 A CN 113007473A
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- CN
- China
- Prior art keywords
- layer
- hose
- flange
- clamping piece
- flexible hose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000036961 partial effect Effects 0.000 claims abstract description 6
- 238000004073 vulcanization Methods 0.000 claims abstract 2
- 239000004744 fabric Substances 0.000 claims description 32
- 238000004804 winding Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 20
- 239000000853 adhesive Substances 0.000 claims 3
- 230000001070 adhesive effect Effects 0.000 claims 3
- 239000011247 coating layer Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/01—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses adapted for hoses having a multi-layer wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/088—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising a combination of one or more layers of a helically wound cord or wire with one or more braided layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar
Abstract
The invention discloses a flexible hose assembly with high connection strength. Hose (1) including multilayer structure layer, the key is that the flange joint of the tip of hose (1) comprises left flange (2) and right flange (3), be equipped with between left and right flange (2, 3) at least two with the clamping face parallel arrangement's of left and right flange (2, 3) clamping piece, the structural layer or partial structural layer of hose (1) are held with the clamping piece between the clamping piece and left and right flange (2, 3), foretell hose (1) and clamping piece and left and right flange (2, 3) whole vulcanization fixes. The invention can realize larger bending, is particularly suitable for small fields or small spaces, and can be coiled and stored in a smaller radius.
Description
The technical field is as follows:
the invention relates to an industrial hose, in particular to a hose assembly with a small bending curvature radius.
Background art:
the hose made of rubber or rubber plastic material has good flexibility, wear resistance, oil resistance, erosion resistance, compression resistance or tensile resistance, so the hose is widely applied to the technical fields of aerospace, petroleum and natural gas, industrial chemical industry, food transportation, engineering machinery and the like, in practical use, the rubber hose mainly conveys liquid, slurry fluid, granular fluid and the like, and has higher liquid pressure or flow speed under many conditions, therefore, in order to ensure good connection strength and good liquid tightness with the hose, the metal pipe joint connected with the end part of a general hose has a considerable length so as to meet the requirements, for example, the length of the metal pipe joint of a general buckling type, a high pressure type or a pre-embedded type reaches dozens of centimeters, when the hose is used in a small space or needs to be stored on a reel frame, the hose cannot be bent so that the hose is difficult to use, if external force is applied to excessively bend the hose part in the hose assembly, the junction part of the metal pipe joint and the hose is excessively bent or the internal stress is excessively large to damage the hose, the service life of the hose is shortened, and leakage or burst accidents can occur in severe cases. Therefore, how to solve the above-mentioned drawbacks of the hose assembly in the prior art is still a problem to be solved.
The invention content is as follows:
the invention aims to disclose a hose assembly with high connection strength and large bending.
The technical solution for realizing the invention is as follows: the hose comprises a plurality of layers of structural layers, the key is that a flange joint at the end part of the hose is composed of a left flange and a right flange, at least two clamping pieces which are parallel to the clamping surfaces of the left flange and the right flange are arranged between the left flange and the right flange, the structural layers or partial structural layers of the hose are clamped between the clamping pieces and the left flange and the right flange, and the hose is integrally vulcanized and fixed with the clamping pieces and the left flange and the right flange.
The clamping piece consists of a left clamping piece and a right clamping piece.
The hose comprises interior glue film, interior rubberized fabric layer, the supporting layer that has the winding steel wire, outer rubberized fabric layer and outer rubberized fabric layer from inside to outside order, interior rubberized fabric layer and outer rubberized fabric layer constitute by at least two-layer winding cloth.
And a middle clamping piece is arranged between the left clamping piece and the right clamping piece.
And a part of supporting layer is clamped between the left clamping piece and the middle clamping piece, or a layer of winding cloth of the part of supporting layer and the inner rubberized fabric layer is clamped.
And a layer of winding cloth of a part of the supporting layer or the supporting layer and the outer rubberized fabric layer is clamped between the middle clamping piece and the right clamping piece.
The outer end of the left clamping piece is provided with a left extending section bent to the left, and the outer end of the right clamping piece is provided with a right extending section bent to the right.
The surface of left side flange coat have the end covering layer that extends by interior glue film an organic whole, the excircle surface covering of left and right flange has the excircle protection glue film.
The part of the winding steel wire in the supporting layer, which is close to the right flange, is provided with 3-6 circles of winding steel wires, and the winding density of the winding steel wire is greater than that of the winding steel wire in the middle of the hose.
The unique design of the joint in the technical scheme disclosed by the invention ensures the connecting strength and the sealing performance of the joint and the hose, and simultaneously, the length of the metal joint is in the magnitude of several centimeters, and is greatly reduced compared with the length of the metal pipe joint in the prior art, so that the hose assembly can realize larger bending, is particularly suitable for small fields or small spaces, can be coiled and released with smaller radius, and has specific protection on the connecting area when the hose assembly is bent due to the specific design of the connecting area of the hose and the joint, thereby having remarkable progress and technical effects.
The attached drawings of the specification:
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention.
Fig. 2 is an enlarged schematic structural view of a part of the structure of fig. 1.
Fig. 3 is a schematic connection diagram of the structure shown in fig. 1.
The specific implementation mode is as follows:
specific embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are provided to facilitate understanding of the technical spirit of the present invention and should not be construed as limiting the scope of the claims of the present invention.
Referring to fig. 1 to 3, a technical solution of an embodiment of the present invention is: the hose 1 comprises a plurality of layers of structural layers, the key is that a flange joint at the end part of the hose 1 is composed of a left flange 2 and a right flange 3, the left flange (2) and the right flange (3) are respectively provided with a plurality of bolt holes and correspond to each other, so that bolts for connection penetrate through the left flange and the right flange, at least two clamping pieces which are parallel to the clamping surfaces of the left flange and the right flange (2) and (3) are arranged between the left flange and the right flange (2) and (3), the structural layers or partial structural layers of the hose 1 are clamped between the clamping pieces and the left flange and the right flange (2) and (3), and the hose 1 and the clamping pieces are integrally vulcanized and fixed with the. In the technical scheme, the hose 1 is mainly made of rubber materials and is prepared by other bendable materials, the hose 1 has good bending performance, the flange joint is composed of the left flange (2) and the right flange (3), the non-bendable part in the hose assembly is a clamping piece between the left flange (2) and the right flange (3) and between the left flange (2) and the right flange (3), the length of the joint is the sum of the thicknesses of the left flange (2) and the right flange (3) and the clamping piece, the length of the joint is several centimeters because the thicknesses of the left flange (2) and the right flange (3) are 1-2 centimeters and the thickness of the clamping piece is millimeter, and compared with the length of dozens of centimeters of metal pipe joints in the prior art, the length of the joint is greatly reduced, and the influence on the bending. When the hose assembly is in actual use, the two flange joints are connected through the fixing bolts (as shown in figure 3, the bolts are not shown), the fastening force of the bolts enables the left and right flanges (2 and 3) to apply a pressure to the structure layer of the hose 1 clamped in the middle, so that the hose 1 is more difficult to be separated from the flange joints when being subjected to external force such as stretching force, the structure layer of the hose 1 is clamped between the left flange (2), the right flange (3) and the at least two clamping pieces respectively, so that at least six friction surfaces are arranged between the hose 1 and the joint, the friction surfaces greatly increase the friction resistance of the structural layer of the hose 1, and the at least two clamping pieces increase the extrusion deformation degree of the clamped structural layer of the hose 1 when the bolt is fastened, therefore, the connection strength between the hose 1 and the joint is improved, and the sealing property between the hose 1 and the joint is also improved.
The clamping pieces are composed of a left clamping piece 4 and a right clamping piece 5, the left flange and the right flange (2 and 3) and the left clamping piece 4 and the right clamping piece 5 form three clamping areas, and each clamping area clamps a structural layer or a part of the structural layer of the hose 1, and the structure is determined according to the multilayer structure of the hose 1; the hose 1 is composed of an inner rubber layer 6, an inner rubber cloth layer 7, a supporting layer 9 with wound steel wires 8, an outer rubber cloth layer 10 and an outer rubber layer 11 in sequence from inside to outside, wherein the inner rubber cloth layer 7 and the outer rubber cloth layer 10 are composed of at least two layers of wound cloth; the inner rubber layer 6 is the innermost layer of the hose 1 and is in direct contact with the conveyed liquid, the inner rubber layer 6 is made of a rubber material or a plastic material which is wear-resistant, acid-base corrosion-resistant or high-temperature-resistant according to the requirements of the hose 1 such as application and specification, the inner rubber layer 7 and the outer rubber layer 10 improve the radial supporting performance of the hose 1 and axial tensile resistance, and the supporting layer 9 with the wound steel wires 8 can greatly improve the radial supporting performance, axial tensile resistance and pressure resistance of the hose 1.
In order to further improve the performance of the hose assembly and the connection strength between the hose 1 and the joint, a middle clamping piece 12 is arranged between the left clamping piece 4 and the right clamping piece 5; the middle clamping piece is added to ensure that eight friction surfaces are formed between the left flange (2), the right flange (3), the three clamping pieces and the clamped hose 1, so that the friction resistance of the clamped structural layer of the hose 1 when tensile force is applied is further improved, namely the connection strength between the hose 1 and the joint is further improved; the clamping part of the supporting layer 9 between the left clamping piece 4 and the middle clamping piece 12, or the clamping part of the supporting layer 9 and the inner rubberized fabric layer 7, if the inner rubberized fabric layer 7 is formed by a plurality of layers of winding fabrics, or more than two layers of winding fabrics can be clamped, and meanwhile, the inner rubberized fabric layer 7 or part of the inner rubberized fabric layer 6 and part of the inner rubberized fabric layer 7 are clamped between the left flange 2 and the left clamping piece 4, so that the tensile force applied to the clamped layer between the left clamping piece 4 and the left flange 2 and the tensile force applied to the clamped layer between the left clamping piece 4 and the middle clamping piece 12 are relatively balanced, and excessive tensile force difference; the middle clamping piece 12 and the right clamping piece 5 are provided with a layer of winding cloth of the clamping part supporting layer 9 or the clamping part supporting layer 9 and the outer rubberized fabric layer 10, if the outer rubberized fabric layer 10 is formed by a plurality of layers of winding cloth, more than two layers of winding cloth can be clamped, meanwhile, the outer rubberized fabric layer 10 or the partial rubberized fabric layer 10 and the partial outer rubberized fabric layer 11 are clamped between the right clamping piece 5 and the right flange 3, and similarly, the tensile force borne by the structure layer clamped by the middle clamping piece 12 and the right clamping piece 5 and the structure layer clamped by the right clamping piece 5 and the right flange 3 is relatively balanced, and the excessive tensile force difference is not. Through the technical scheme, the hose 1 and the joint have excellent connection strength, and when the hose 1 is stressed, the tensile force between the hose 1 and the joint can be uniformly distributed on each clamping friction surface, so that the displacement difference between each structural layer of the hose 1 caused by uneven stress of each structural layer is effectively avoided, and the sealing performance is improved.
In order to further improve the connection strength between the hose 1 and the joint, the outer end of the left clamping piece 4 is provided with a left extending section 13 bent to the left, the outer end of the right clamping piece 5 is provided with a right extending section 14 bent to the right (shown in fig. 2), the left extending section 13 covers part or all of the outer circle surface of the left flange 2, the right extending section 14 also covers part or all of the outer circle surface of the right flange 3, on one hand, the left extending section 13 and the right extending section 14 prevent displacement when the hose 1 is subjected to tensile force to cause the displacement of the left clamping piece 4 and the right clamping piece 5, on the other hand, the left extending section (13, 14) and the right extending section seal the interface between the left flange 2 and the left clamping piece 4 and the interface between the right flange 3 and the right clamping piece 5, so that the connection strength and the sealing effect between the hose 1.
In order to further improve the effect of the hose assembly, the outer surface of the left flange 2 is covered with an end covering layer 15 integrally extended by the inner rubber layer 6, and the outer circle surfaces of the left flange (2) and the right flange (3) are covered with an outer circle protective rubber layer 16; the end covering layer 15 improves the sealing performance of the joint and the hose 1, and can be used as a sealing element between the joints when the two joints are connected (shown in figure 3), so that the installation and the use are greatly facilitated, and the outer circle protective glue layer 16 can cover all the interfaces on the outer circle surface of the joint, so that the sealing performance of the joint is improved.
The winding steel wire 8 in the supporting layer 9 increases the radial supporting performance of the hose 1 and improves the tensile resistance of the hose 1, the joint of the invention has small length, so that the hose assembly of the invention is allowed to have larger bending when in use, but the larger bending can cause a section of the connection between the joint and the hose 1 to be locally damaged due to larger bending, so that the winding density of 3-6 circles of winding steel wires 7 at the part, close to the right flange 3, of the winding steel wire 8 in the supporting layer 9 is greater than that of the winding steel wire 8 at the middle part of the hose 1 (shown in figures 1-2), the higher density of the winding steel wire 8 in the section, close to the right flange 3, increases the strength of the hose 1 in the section, the bending resistance is increased, when the hose assembly is bent to a larger extent, the bending of the hose 1 in the section is smaller, and a bending transition area is formed, this reduces possible damage between the hose 1 and the fitting due to excessive bending, such as slight detachment of the fitting from the hose 1.
Claims (9)
1. The utility model provides a flexible hose assembly of high joint strength, hose (1) including multilayer structure layer, its characterized in that hose (1)'s the flange joint of tip comprises left flange (2) and right flange (3), be equipped with at least two clamping pieces that set up with the clamping face parallel of left and right flange (2, 3) between left and right flange (2, 3), the structural layer or partial structural layer of hose (1) are held with the clamping piece between the clamping piece and between left and right flange (2, 3), foretell hose (1) and clamping piece and left and right flange (2, 3) whole vulcanization fixes.
2. The flexible hose assembly with high joint strength as set forth in claim 1, wherein said clip is formed of a left clip (4) and a right clip (5).
3. Flexible hose assembly with high joint strength according to claim 1 or 2, characterised in that the hose (1) is formed by an inner layer (6), an inner layer (7), a support layer (9) with wound steel wires (8), an outer layer (10) and an outer layer (11) of adhesive in this order from the inside to the outside, the inner layer (7) and the outer layer (10) of adhesive being formed by at least two layers of wound adhesive.
4. The flexible hose assembly with high joint strength as set forth in claim 3, wherein an intermediate jaw (12) is provided between the left jaw (4) and the right jaw (5).
5. Flexible hose assembly with high connection strength according to claim 4, characterized in that a part of the support layer (9) is held between the left jaw (4) and the middle jaw (12), or a part of the support layer (9) and the inner rubberized fabric layer (7) is wrapped.
6. A flexible hose assembly of high bond strength as claimed in claim 5 wherein said intermediate jaw (12) is disposed between said right jaw (5) and said intermediate jaw to hold a portion of said support layer (9) or to hold a portion of said support layer (9) and said outer rubberized fabric layer (10) in a wrapped configuration.
7. The flexible hose assembly with high connection strength as claimed in claim 6, wherein the left clip (4) has a left extension (13) bent to the left at the outer end thereof, and the right clip (5) has a right extension (14) bent to the right at the outer end thereof.
8. The flexible hose assembly with high joint strength as claimed in claim 7, wherein the outer surface of the left flange (2) is covered with an end coating layer (15) integrally extended from the inner rubber layer (6), and the outer circumferential surfaces of the left and right flanges (2, 3) are covered with an outer circumferential protective rubber layer (16).
9. The flexible hose assembly with high joining strength as claimed in claim 8, wherein the portion of the winding wires (8) in the support layer (9) near the right flange (3) has a winding density of 3 to 6 turns of the winding wires (8) greater than that of the winding wires (8) in the middle portion of the hose (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110173764.0A CN113007473A (en) | 2021-02-08 | 2021-02-08 | High joint strength's flexible hose assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110173764.0A CN113007473A (en) | 2021-02-08 | 2021-02-08 | High joint strength's flexible hose assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113007473A true CN113007473A (en) | 2021-06-22 |
Family
ID=76385177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110173764.0A Pending CN113007473A (en) | 2021-02-08 | 2021-02-08 | High joint strength's flexible hose assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113007473A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100803A (en) * | 2014-07-17 | 2014-10-15 | 宁波市正一砼泵配件有限公司 | Rubber damping throat for delivering concrete |
| CN104964113A (en) * | 2015-07-02 | 2015-10-07 | 中国铁建重工集团有限公司 | Compensator for slurry balance shield mud circulation system |
| CN110726022A (en) * | 2019-09-25 | 2020-01-24 | 烟台泰悦流体科技有限公司 | Hose assembly |
-
2021
- 2021-02-08 CN CN202110173764.0A patent/CN113007473A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100803A (en) * | 2014-07-17 | 2014-10-15 | 宁波市正一砼泵配件有限公司 | Rubber damping throat for delivering concrete |
| CN104964113A (en) * | 2015-07-02 | 2015-10-07 | 中国铁建重工集团有限公司 | Compensator for slurry balance shield mud circulation system |
| CN110726022A (en) * | 2019-09-25 | 2020-01-24 | 烟台泰悦流体科技有限公司 | Hose assembly |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210622 |
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| RJ01 | Rejection of invention patent application after publication |