CN113503411B

CN113503411B - Hydraulic high-stability rubber hose connector

Info

Publication number: CN113503411B
Application number: CN202111058768.0A
Authority: CN
Inventors: 钟淑云; 严慧
Original assignee: Nantong Maylead Technology Co ltd
Current assignee: Nantong Maylead Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2021-11-12
Anticipated expiration: 2041-09-10
Also published as: CN113503411A

Abstract

The invention discloses a hydraulic high-stability rubber pipe joint, belonging to the field of pipe joints, wherein a hydraulic variable pipe is arranged, when a fluid passes through, the hydraulic variable pipe is used for pressing the rubber pipe and expanding towards the inner wall of an outer casing under the action of fluid pressure, so that an outer top ring wedge block extrudes the rubber pipe, the rubber pipe is locally deformed and then sinks into a corresponding inner sunken ring wedge groove, the connection between the rubber pipe and the joint is extruded and fastened through the self pressure of the fluid, the effect that the connection stability between the rubber pipe and the joint is higher along with the increase of the fluid pressure is realized, compared with the prior art, the loosening of the joint caused by the impact force of the fluid is effectively avoided, in addition, after the accidental loosening between the rubber pipe and the joint, the sealing performance is weakened, part of the fluid permeates into an early warning ring groove along a liquid guide layer, so that a color developing point is changed, thereby early warning a worker is carried out, the occurrence rate of pipe explosion is reduced through timely maintenance.

Description

Hydraulic high-stability rubber hose connector

Technical Field

The invention relates to the field of pipe joints, in particular to a hydraulic high-stability rubber pipe joint.

Background

Tubular rubber products of the type used for conveying gaseous, liquid, pasty or granular materials. The composite material consists of inner and outer rubber layers and skeleton layer, and the skeleton layer may be cotton fiber, various synthetic fiber, carbon fiber, asbestos, steel wire, etc. The inner and outer rubber layers of the common rubber tube are made of natural rubber, styrene butadiene rubber or butadiene rubber; the oil-resistant rubber tube adopts chloroprene rubber and nitrile rubber; the acid and alkali resistant and high temperature resistant rubber tube is made of ethylene propylene rubber, fluorine rubber or silicon rubber and the like.

In the liquid transportation system, no matter metal coupling, still hose nipple all has the problem that produces the leakage easily, especially in the liquid that transportation mobility is strong, because its high permeability, easily leaks, and the pipeline is receiving great external force or is coming from the impact force of liquid, leads to the joint to become flexible and causes the leakage, and when liquid impact force was too big, the phenomenon that the joint drops the booster appears even, causes very big maintenance degree of difficulty.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a hydraulic high-stability rubber pipe joint, through the arrangement of a hydraulic variable pipe, when a fluid passes through, the variable pipe is pressed to extrude the rubber pipe and expands towards the inner wall of an outer casing under the action of fluid pressure, so that an outer top ring wedge block extrudes the rubber pipe, the rubber pipe is locally deformed and then falls into a corresponding inner sunken ring wedge groove, the connection between the rubber pipe and the joint is extruded and fastened through the self pressure of the fluid, the effect that the connection stability between the rubber pipe and the joint is higher along with the increase of the fluid pressure is realized, compared with the prior art, the joint loosening condition caused by the impact force of the fluid is effectively avoided, in addition, after the rubber pipe and the joint are accidentally loosened, the sealing performance is weakened, part of the fluid permeates into an early warning ring groove along a fluid guide layer, so that a color developing point is changed, and therefore, workers can be warned, the occurrence rate of pipe explosion is reduced through timely maintenance.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A hydraulic high-stability rubber pipe joint comprises a hydraulic variable pipe and an outer jacket sleeved outside the hydraulic variable pipe, wherein the hydraulic variable pipe comprises a fixed rod and a pressure variable pipe fixedly connected to the right end part of the fixed rod, the fixed rod is close to the outer end part fixedly connected with a limit backing ring of the pressure variable pipe, the sliding end of the pressure variable pipe is positioned on the left side of the limit backing ring, an early warning annular groove is drilled at the outer end of the fixed rod, a liquid filling hole is drilled on the inner wall of the early warning annular groove, the opening part of the liquid filling hole facing the upper part is positioned on the left side of the limit backing ring, a plurality of uniformly distributed color developing points are fixedly connected to the inner end of the early warning annular groove, a plurality of liquid guiding fiber bundles are fixedly penetrated on the color developing points, the end parts of the liquid guiding fiber bundles extend to the opening parts of the liquid filling hole, a plurality of uniformly distributed invagination ring wedge grooves are drilled at the outer end of the pressure variable pipe, a plurality of outer top ring wedge blocks are fixedly connected to the inner wall of the outer jacket, the outer top ring wedge block is matched with the inner sunken ring wedge groove, the distance between the end part of the outer top ring wedge block and the pressure change pipe is the thickness of the rubber pipe, the inner wall of the rubber pipe is in interference fit with the pressure change pipe, the hydraulic pressure change pipe is arranged, when a fluid passes through, the pressure change pipe extrudes the rubber pipe under the action of fluid pressure and expands towards the inner wall of the outer casing, so that the outer top ring wedge block extrudes the rubber pipe, the rubber pipe is locally deformed at the moment and is sunk into the corresponding inner sunken ring wedge groove, the connection between the fastening rubber pipe and the joint is realized through the self-pressure extrusion of the fluid, the effect that the connection stability is higher along with the increase of the fluid pressure is realized, compared with the prior art, the condition that the joint is loosened due to the impact force of the fluid is effectively avoided, in addition, after the accidental looseness between the rubber pipe and the joint is realized, the sealing performance is weakened, part of the fluid permeates into the early warning ring groove along the fluid guide layer, the color developing points are changed, so that the early warning is carried out on the working personnel, and the occurrence rate of the pipe explosion phenomenon is reduced through timely maintenance.

Furthermore, the fixed rod and the outer casing are hard structures, the pressure variable pipe is of an elastic sealing structure, and can deform outwards under the action of fluid pressure to extrude the rubber pipe, so that the connection strength between the rubber pipe and the joint is increased.

Further, the distance between the edge of the groove opening on the right side of the early warning ring groove and the limiting cushion ring is not less than the thickness of the sliding end of the outer sleeve shell, so that when the rubber pipe is connected, the sliding end of the outer sleeve shell can be effectively ensured to be completely in surface contact with the fixed rod, and the connection strength between the rubber pipe and the joint is effectively improved.

Further, outer top ring voussoir and invagination ring wedge groove cross-section are right angled triangle, and the nodical department of the short right-angle limit of outer top ring voussoir and hypotenuse is towards pressing the pipe that becomes, and nodical department polishes and handles, and when making and receive fluidic extrusion force, the local deformation that the rubber tube produced under the conflict effect of outer top ring voussoir just can be absorbed in to invagination ring wedge groove in, makes the rubber tube higher with this joint strength who connects, and fluid pressure is joint strength is higher more greatly.

Further, spacing backing ring is close to the one end outward flange fixedly connected with of outer shell slip end and separates the blank ring, separate the surface that the blank ring kept away from the spacing backing ring and glue and be equipped with the glue film, with the rubber tube connection back, effectively guarantee the leakproofness between the two, the liquid magnetic pole is lured that spacing backing ring is close to a plurality of evenly distributed of one end of outer shell slip end and the equal fixedly connected with of outer shell slip end inner wall.

Further, when outer shell sliding end and spacing backing ring contact, under spacing ring limiting displacement, make and form the space between the two, and irritate liquid orifice portion just to the space, make when pouring into liquid solution magnetism liquid, it can enter into this space, form the drainage layer after the solidification, when taking place not hard up and lead to leaking, because not hard up leakproofness is weak between outer shell inner wall and the spacing backing ring, the fluid infiltration is to in the drainage layer this moment, make the drainage layer dissolved gradually, thereby make this fluid enter into the early warning annular and with the colour development point contact, lead to it to change colour, thereby in time play the early warning effect to the staff, it in time maintains, effectively avoid the emergence of the pipe explosion phenomenon, reduce the maintenance degree of difficulty and loss.

Further, lure a plurality of evenly distributed's of liquid magnetic pole outer end fixedly connected with to lure liquid magnetic stripe, lure liquid magnetic pole and lure liquid magnetic stripe to communicate with each other, and the inside magnetic current body that all fills of the two makes to lure liquid magnetic pole and lure the liquid magnetic stripe all to possess magnetism, is pouring liquid solution magnetism liquid into, makes to lure liquid magnetic pole and lure liquid magnetic stripe to produce certain absorption guiding power to it, effectively accelerates the filling of stretching of liquid solution magnetism liquid to the space, makes the liquid layer of leading that forms comparatively full simultaneously, is difficult for appearing the hole.

Further, lure liquid magnetic stripe to attach completely on the surface of the spacing backing ring surface at its place or outer jacket slip end inner wall, it is a plurality of lure liquid magnetic stripe to increase along the one end length of keeping away from the hydraulic pressure change pipe gradually, make shorter lure liquid magnetic stripe be difficult for producing the liquid solution magnetic fluid that spills over to the liquid filling orifice portion and block, it stretches to the space in to be convenient for, its length lengthens gradually simultaneously, makes and keeps away from the longer guide power of luring liquid magnetic stripe to liquid solution magnetic fluid of liquid filling orifice portion better, the liquid solution magnetic fluid of being convenient for is full of the space between outer jacket inner wall and the spacing backing ring completely, helps when not becoming flexible, guarantees the terminal surface stress area grow that outer jacket and spacing backing ring are close to each other, and stability is better.

A hydraulic high-stability rubber hose joint and a using method thereof comprise the following steps:

s1, selecting a joint with a corresponding size according to the pipe diameter of the rubber pipe, sliding the outer casing to the left to expose the pressure-variable pipe, sleeving the rubber pipe on the pressure-variable pipe, and enabling the end part of the rubber pipe to abut against the limiting cushion ring;

s2, reversely sliding the outer sleeve shell to wrap the outer sleeve shell outside the rubber tube until the outer sleeve shell abuts against the other end of the limiting cushion ring and then stops moving, and at the moment, fastening the right side of the outer sleeve shell through a hoop structure to improve the connection stability between the outer sleeve shell and the rubber tube;

s3, injecting liquid-soluble magnetic liquid into the gap between the inner wall of the sliding end of the outer casing and the limiting backing ring through the liquid injection hole, solidifying to form a liquid guide layer, then continuously filling transparent sealant into the early warning ring groove to form a color development layer until the end part of the color development layer covers the joint between the outer casing and the fixed rod, and completing the installation between the joint and the rubber pipe.

Furthermore, the liquid-soluble magnetic liquid is made of a molten liquid-soluble material uniformly doped with magnetic powder, and the doping volume ratio of the magnetic powder to the liquid-soluble material is 1:3-5, so that the magnetic liquid can be dissolved after contacting with the transported fluid, the leaked fluid can conveniently enter the early warning ring groove, and the color developing point changes color.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme passes through the setting of hydraulic pressure change pipe, when the fluid passes through, press the pipe extrusion rubber tube and expand towards outer cover shell inner wall under the fluid pressure effect, make outer top ring wedge piece extrusion rubber tube, local deformation takes place for the rubber tube this moment, just sink into the interior sunken ring wedge inslot that corresponds, realize through being connected between fluid self pressure extrusion fastening rubber tube and this joint, the realization is along with the fluid pressure increase, the higher effect of connection stability between the two, compare in prior art, effectively avoid leading to the not hard up condition of joint to take place because of liquid impact force, in addition, unexpected not hard up back between rubber tube and this joint, the leakproofness weak, partial fluid is along in the drain layer infiltration early warning annular, make the point of developing look change color, thereby early warning the staff, reduce the incidence of the phenomenon of blowing out through timely maintenance.

(2) The fixed rod and the outer casing are both hard structures, and the pressure change pipe is of an elastic sealing structure, so that the pressure change pipe can deform outwards under the pressure action of fluid to extrude the rubber pipe, and the connection strength between the rubber pipe and the joint is increased.

(3) The distance between the edge of the right notch of the early warning ring groove and the limiting cushion ring is not less than the thickness of the sliding end of the outer sleeve shell, so that when the rubber pipe is connected, the sliding end of the outer sleeve shell can be effectively ensured to be completely contacted with the surface of the fixed rod, and the connection strength between the rubber pipe and the joint is effectively improved.

(4) The cross-section of the outer top ring wedge block and the section of the inner sunken ring wedge groove are right-angled triangles, the short right-angled edge of the outer top ring wedge block and the intersection point of the bevel edge face to the pressure-variable pipe, the intersection point is polished, so that when the extrusion force of fluid is received, the local deformation of the rubber pipe under the conflict effect of the outer top ring wedge block can just be trapped in the inner sunken ring wedge groove, the connection strength between the rubber pipe and the joint is higher, and the connection strength is higher when the fluid pressure is higher.

(5) Spacing backing ring is close to the one end outward flange fixedly connected with of outer shell slip end and separates the blank ring, separates the blank ring and keeps away from the surface of spacing backing ring and glues and be equipped with the glue film, after being connected with the rubber tube, effectively guarantees the leakproofness between the two, and spacing backing ring is close to the one end of outer shell slip end and the equal fixedly connected with of outer shell slip end inner wall lures liquid magnetism pole a plurality of evenly distributed.

(6) When outer shell slip end and spacing backing ring contact, under spacing ring limiting displacement, make and form the space between the two, and irritate liquid orifice portion just to the space, make when the liquid solution magnetic fluid of pouring into, it can enter into in this space, form the drainage layer after the solidification, when taking place not hard up and lead to leaking, because not hard up leakproofness debilitation between outer shell inner wall and the spacing backing ring, the fluid infiltration is to in the drainage layer this moment, make the drainage layer dissolved gradually, thereby make this fluid enter into in the early warning annular and with the colour development point contact, lead to it to change colour, thereby in time play the early warning effect to the staff, it in time maintains, effectively avoid the emergence of pipe explosion phenomenon, reduce the maintenance degree of difficulty and loss.

(7) Luring liquid magnetic stripe that lures a plurality of evenly distributed of liquid magnetic pole outer end fixedly connected with, luring liquid magnetic pole and luring liquid magnetic stripe to communicate with each other, and the inside magnetic current body that all fills of the two, make and lure liquid magnetic pole and lure the liquid magnetic stripe all to possess magnetism, pouring liquid solution magnetic fluid, make and lure liquid magnetic pole and lure liquid magnetic stripe to produce certain absorption guiding power to it, effectively accelerate the filling of stretching in liquid solution magnetic fluid to the space, the liquid layer of leading that makes the formation simultaneously is comparatively full, is difficult for appearing the hole.

(8) Lure liquid magnetism strip to attach completely on the surface of the spacing backing ring surface at its place or outer jacket slip end inner wall, a plurality ofly lure liquid magnetism strip to increase gradually along the one end length of keeping away from hydraulic pressure change pipe, make shorter lure liquid magnetism strip be difficult for producing the liquid solution magnetism liquid that overflows to the liquid filling orifice portion and block, it stretches to the space in to be convenient for, its length lengthens gradually simultaneously, it is better to the guide force of liquid solution magnetism liquid to the liquid solution magnetism liquid to make to keep away from the longer liquid magnetism strip of luring of liquid filling orifice portion, be convenient for liquid solution magnetism liquid is full of the space between outer jacket inner wall and the spacing backing ring completely, help when not becoming flexible, guarantee the terminal surface stress area grow that outer jacket and spacing backing ring are close to each other, stability is better.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the outer casing of the present invention when it is moved outside the pressure-variable pipe;

FIG. 3 is a schematic front view of the outer casing of the present invention moving outside the pressure-variable pipe;

FIG. 4 is a schematic structural diagram of the front side of the present invention;

FIG. 5 is a schematic diagram of the structure of the present invention during use;

FIG. 6 is a schematic structural view of a cross section of the early warning ring groove of the present invention;

FIG. 7 is a schematic view of the construction of the joint between the hose and the joint of the present invention as fluid passes through it;

FIG. 8 is a schematic view of the spacing washer of the present invention;

FIG. 9 is a schematic structural view of the joint between the outer casing and the limiting cushion ring according to the present invention;

fig. 10 is a schematic structural view of the liquid-attracting magnetic rod of the present invention.

The reference numbers in the figures illustrate:

11 fixed rods, 12 pressure change pipes, 2 outer casings, 31 outer top ring wedges, 32 inner sunken ring wedge grooves, 4 limiting cushion rings, 41 spacing rings, 42 liquid-trapping magnetic rods, 5 early warning ring grooves, 51 liquid-filling holes and 6 liquid-trapping magnetic strips.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 2-3, a hydraulic high-stability rubber pipe joint comprises a hydraulic variable pipe and an outer casing 2 sleeved outside the hydraulic variable pipe, the hydraulic variable pipe comprises a fixed rod 11 and a pressure variable pipe 12 fixedly connected to the right end of the fixed rod 11, the fixed rod 11 and the outer casing 2 are both of hard structures, the pressure variable pipe 12 is of an elastic sealing structure, the pressure variable pipe 12 can deform outwards under the pressure of fluid to extrude the rubber pipe, so that the connection strength between the rubber pipe and the joint is increased, the fixed rod 11 is fixedly connected with a limiting cushion ring 4 near the outer end of the pressure variable pipe 12, the sliding end of the pressure variable pipe 12 is positioned on the left side of the limiting cushion ring 4, the outer end of the pressure variable pipe 12 is provided with a plurality of uniformly distributed inner sunken ring wedge grooves 32, the inner wall of the outer casing 2 is fixedly connected with a plurality of outer top ring wedge blocks 31, the outer top ring wedge blocks 31 are matched with the inner sunken ring wedge grooves 32, and the distance between the end of the outer top ring blocks 31 and the pressure variable pipe 12 is the thickness of the rubber pipe, and rubber tube inner wall and press and become interference fit between pipe 12, outer apical ring voussoir 31 and undercut ring wedge groove 32 cross-section are right angled triangle, and the nodical department of the short right-angle limit of outer apical ring voussoir 31 and hypotenuse is towards pressing and becomes pipe 12, and nodical department polishes and handles, as figure 7, when making and receiving fluidic extrusion force, the rubber tube just can be absorbed into to undercut ring wedge groove 32 in the local deformation that the rubber tube produced under the effect of contradicting of outer apical ring voussoir 31, make the joint strength between rubber tube and this joint higher, and fluid pressure is the joint strength higher more.

Referring to fig. 6, an early warning ring groove 5 is cut at the outer end of the fixed rod 11, a liquid filling hole 51 is cut in the inner wall of the early warning ring groove 5, the upward opening of the liquid filling hole 51 is located on the left side of the limiting backing ring 4, a plurality of color display points which are uniformly distributed are fixedly connected to the inner bottom end of the early warning ring groove 5, a liquid guiding fiber bundle penetrates through the color display points, and the end of the liquid guiding fiber bundle extends to the opening of the liquid filling hole 51.

Referring to fig. 3, the distance between the edge of the right notch of the early warning ring groove 5 and the limiting backing ring 4 is not less than the thickness of the sliding end of the outer casing 2, so that when the rubber pipe is connected, the sliding end of the outer casing 2 can be effectively ensured to be completely contacted with the surface of the fixed rod 11, and the connection strength between the rubber pipe and the joint is effectively improved.

Referring to fig. 8, an outer edge of one end of the limiting gasket ring 4 close to the sliding end of the outer casing 2 is fixedly connected with a spacing ring 41, a glue layer is adhered on the surface of the spacing ring 41 far away from the limiting gasket ring 4, and after the rubber layer is connected with the glue layer, the sealing performance between the two is effectively ensured, one end of the limiting gasket ring 4 close to the sliding end of the outer casing 2 and the inner wall of the sliding end of the outer casing 2 are fixedly connected with a plurality of liquid-inducing magnetic rods 42 which are uniformly distributed, as shown in fig. 3 and 9, when the sliding end of the outer casing 2 is contacted with the limiting gasket ring 4, a gap is formed between the two under the limiting action of the spacing ring 41, and the mouth of the liquid-filling hole 51 is opposite to the gap, so that when the liquid-dissolved magnetic liquid is filled, the liquid can enter the gap, a liquid-guiding layer is formed after solidification, when leakage occurs due to looseness, the sealing performance between the inner wall of the outer casing 2 and the limiting gasket ring 4 becomes weak, and at this time, the fluid permeates into the liquid-guiding layer, make the drainage layer dissolved gradually to make this fluid enter into in the early warning annular 5 and with the color development point contact, lead to it to change colour, thereby in time play the early warning effect to the staff, it is in time maintained, effectively avoids the emergence of tube explosion phenomenon, reduces the maintenance degree of difficulty and loss.

Referring to fig. 10, the outer end of the liquid-attracting magnetic rod 42 is fixedly connected with a plurality of liquid-attracting magnetic strips 6 which are uniformly distributed, the liquid-attracting magnetic rod 42 is communicated with the liquid-attracting magnetic strips 6, and magnetic fluids are filled in the liquid-attracting magnetic rod and the liquid-attracting magnetic strips, so that the liquid-attracting magnetic rod 42 and the liquid-attracting magnetic strips 6 have magnetism, when liquid-dissolving magnetic liquid is filled in, the liquid-attracting magnetic rod 42 and the liquid-attracting magnetic strips 6 generate a certain adsorption guiding force on the liquid-attracting magnetic strips, the spreading and filling of the liquid-dissolving magnetic liquid into the gap is effectively accelerated, meanwhile, the formed liquid-guiding layer is relatively full and is not easy to generate holes, the liquid-attracting magnetic strips 6 are completely attached to the surface of the limiting cushion ring 4 where the liquid-attracting magnetic strips are located or the surface of the inner wall of the sliding end of the outer casing 2, the lengths of the plurality of liquid-attracting magnetic strips 6 are gradually increased along the end far away from the liquid-pressure change pipe, so that the relatively short liquid-attracting magnetic strips 6 are not easy to block the liquid-dissolving magnetic liquid overflowing from the mouth of the liquid-filling hole 51 and gradually increase, the messenger keeps away from the longer liquid magnetic strip 6 that lures of liquid hole 51 oral area better to the guide power of liquid solution magnetism liquid, and the liquid solution magnetism liquid of being convenient for is full of the space between outer mantle 2 inner wall and the spacing backing ring 4 completely, helps when not becoming flexible, guarantees the terminal surface stress area grow that outer mantle 2 and spacing backing ring 4 are close to each other, and stability is better.

Referring to fig. 5, a method for using a hydraulic type high stability hose joint includes the following steps:

s1, selecting a joint with a corresponding size according to the pipe diameter of the rubber pipe, sliding the outer casing 2 to the left to expose the pressure-variable pipe 12 as shown in figures 1 and 4, sleeving the rubber pipe on the pressure-variable pipe 12 at the moment, and enabling the end part of the rubber pipe to abut against the limiting cushion ring 4;

s2, the outer sleeve shell 2 is reversely slid to be wrapped outside the rubber tube, and the outer sleeve shell 2 stops moving until the outer sleeve shell 2 abuts against the other end of the limiting cushion ring 4, at the moment, the right side of the outer sleeve shell 2 is fastened through a hoop structure, and the connection stability between the outer sleeve shell 2 and the rubber tube is improved;

s3, pouring liquid-soluble magnetic liquid into the gap between the inner wall of the sliding end of the outer casing 2 and the limiting cushion ring 4 through the liquid pouring hole 51, forming a liquid guide layer after solidification, then continuously filling transparent sealant into the early warning ring groove 5 to form a color development layer until the end part of the color development layer covers the joint between the outer casing 2 and the fixed rod 11, and completing the installation between the joint and the rubber pipe.

The liquid-soluble magnetic liquid is made of a molten liquid-soluble material uniformly doped with magnetic powder, and the doping volume ratio of the magnetic powder to the liquid-soluble material is 1:3-5, so that the magnetic liquid can be dissolved after contacting with transported fluid, the leaked fluid can conveniently enter the early warning annular groove 5, and the color developing point is changed.

It should be noted that the specific materials of the liquid-soluble material, the color point and the liquid-guiding fiber bundle are set according to the kind of the high-fluidity fluid actually transported by the hose, for example, when the transported fluid is water, the liquid-soluble material is water-soluble material, the color point is made of material changing color when meeting water, and the liquid-guiding fiber bundle is made of water-absorbent fiber.

Through the arrangement of the hydraulic variable pipe with elastic end part, as shown in figure 7, when fluid passes through the joint of the rubber pipe and the joint, the pressure pipe 12 extrudes the end part of the rubber pipe and expands towards the inner wall of the outer casing 2 under the action of fluid pressure, so that the outer top ring wedge block 31 extrudes the rubber pipe, the rubber pipe is locally deformed and then is sunk into the corresponding inner sunken ring wedge groove 32, the connection between the rubber pipe and the joint is extruded and fastened through the self pressure of the fluid, the effect that the connection stability is higher along with the increase of the liquid pressure is realized, compared with the prior art, the situation that the joint is loosened due to the liquid impact force is effectively avoided, in addition, when the rubber tube is accidentally loosened from the joint, the sealing performance is weakened, and part of fluid permeates into the early warning ring groove 5 along the liquid guide layer to change the color of the color point, so that the early warning is performed on the working personnel, and the occurrence rate of the tube burst phenomenon is reduced through timely maintenance.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a hydraulic pressure type high stability rubber tube connector, includes that hydraulic pressure changes the pipe and overlaps and establish overcoat shell (2) outside the hydraulic pressure changes the pipe, its characterized in that: the hydraulic transformer comprises a fixed rod (11) and a pressure variable pipe (12) fixedly connected to the right end of the fixed rod (11), the fixed rod (11) is close to a limiting backing ring (4) fixedly connected to the outer end of the pressure variable pipe (12), the sliding end of the pressure variable pipe (12) is positioned on the left side of the limiting backing ring (4), an early warning ring groove (5) is drilled at the outer end of the fixed rod (11), a liquid filling hole (51) is drilled on the inner wall of the early warning ring groove (5), the mouth part of the liquid filling hole (51) facing the upper side is positioned on the left side of the limiting backing ring (4), a plurality of uniformly distributed color display points are fixedly connected to the inner bottom end of the early warning ring groove (5), a plurality of liquid guide fiber bundles are fixedly penetrated on the color display points, the outer end of the liquid guide fiber bundles extend to the mouth part of the liquid filling hole (51), and a plurality of uniformly distributed inner sunken ring wedge grooves (32) are drilled on the pressure variable pipe (12), outer jacketing (2) inner wall fixedly connected with a plurality of outer top ring voussoirs (31), outer top ring voussoirs (31) and sunken ring wedge groove (32) match each other, outer top ring voussoir (31) tip with press the distance that becomes between pipe (12) to be rubber tube thickness, and the rubber tube inner wall with press and become interference fit between pipe (12).

2. The hydraulic high-stability hose joint according to claim 1, wherein: the fixed rod (11) and the outer casing (2) are both hard structures, and the pressure variable pipe (12) is an elastic sealing structure.

3. The hydraulic high-stability hose joint according to claim 2, wherein: the distance between the edge of the right side notch of the early warning ring groove (5) and the limiting cushion ring (4) is not less than the thickness of the sliding end of the outer sleeve shell (2).

4. The hydraulic high-stability hose joint according to claim 1, wherein: the cross sections of the outer top ring wedge block (31) and the inner sunken ring wedge groove (32) are right-angled triangles, the intersection point of the short right-angled edge and the bevel edge of the outer top ring wedge block (31) faces the pressure-variable pipe (12), and the intersection point is polished.

5. The hydraulic high-stability hose joint according to claim 1, wherein: spacing backing ring (4) are close to one end outward flange fixedly connected with that outer shell (2) slip end separates empty ring (41), separate the surface that empty ring (41) kept away from spacing backing ring (4) and glue the layer, spacing backing ring (4) are close to the one end of outer shell (2) slip end and outer shell (2) slip end inner wall equal fixedly connected with a plurality of evenly distributed lure liquid magnetism pole (42).

6. The hydraulic high-stability hose joint according to claim 5, wherein: when the sliding end of the outer casing (2) is contacted with the limiting cushion ring (4), a gap is formed between the sliding end and the limiting cushion ring under the limiting action of the spacing ring (41).

7. The hydraulic high-stability hose joint according to claim 5, wherein: lure liquid magnetic pole (42) outer end fixedly connected with a plurality of evenly distributed to lure liquid magnetic stripe (6), lure liquid magnetic pole (42) to communicate with each other with luring liquid magnetic stripe (6), and the inside magnetic current body that all fills of the two.

8. The hydraulic high-stability hose joint according to claim 7, wherein: lure liquid magnetic stripe (6) to attach totally on the surface of spacing backing ring (4) surface or outer jacket (2) slip end inner wall at its place, it is a plurality of lure liquid magnetic stripe (6) to increase gradually along the one end length of keeping away from hydraulic pressure and change the pipe.

9. The hydraulic high-stability hose joint according to claim 1, wherein: the using method comprises the following steps:

s1, selecting a joint with a corresponding size according to the pipe diameter of the rubber pipe, sliding the outer casing (2) to the left to expose the pressure variable pipe (12), sleeving the rubber pipe on the pressure variable pipe (12) at the moment, and enabling the end part of the rubber pipe to abut against the limiting cushion ring (4);

s2, reversely sliding the outer sleeve shell (2) to wrap the outer sleeve shell outside the rubber tube until the outer sleeve shell (2) abuts against the other end of the limiting cushion ring (4) and then stops moving, and at the moment, fastening is carried out on the right side of the outer sleeve shell (2) through a hoop structure, so that the connection stability between the outer sleeve shell (2) and the rubber tube is improved;

s3, injecting liquid-soluble magnetic liquid into a gap between the inner wall of the sliding end of the outer casing (2) and the limiting cushion ring (4) through the liquid injection hole (51), forming a liquid guide layer after solidification, and then continuously filling transparent sealant into the early warning ring groove (5) to form a color development layer until the end part of the color development layer covers the joint between the outer casing (2) and the fixed rod (11), so that the installation between the joint and the rubber pipe is completed.

10. The hydraulic high-stability hose joint according to claim 9, wherein: the liquid-soluble magnetic liquid is made of a molten liquid-soluble material uniformly doped with magnetic powder, and the doping volume ratio of the magnetic powder to the liquid-soluble material is 1: 3-5.