CN210860148U

CN210860148U - High-pressure rubber pipe for braking

Info

Publication number: CN210860148U
Application number: CN201921828798.3U
Authority: CN
Inventors: 吕育才; 赵玉涛
Original assignee: Nanjing Hanwei New Material Co ltd
Current assignee: Nanjing Hanwei New Material Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-26
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to a high-pressure rubber tube is used in brake, including the rubber tube body, rubber tube body middle section is equipped with the rubber tube cover, the rubber tube body is kept away from rubber tube cover one end and is equipped with the snap ring, the cover is equipped with the ring cover on the rubber tube cover, be connected with damping spring between screw thread cover and the ring cover, damping spring is close to rubber tube cover one end and is equipped with the coupling mechanism who is used for connecting damping spring, damping spring is close to snap ring one end and is fixed with the screw thread cover, the screw thread is sheathe in and is threaded. The high-pressure rubber hose has the effect of conveniently replacing the steel wire spring ring on the outer side of the high-pressure rubber hose.

Description

High-pressure rubber pipe for braking

Technical Field

The utility model belongs to the technical field of the technique of rubber tube and specifically relates to a high-pressure rubber tube is used in brake.

Background

The high-pressure rubber pipe assembly is mostly used for pipe connection among oil exploration, automobile brake and pressure test gas, and the high-pressure rubber pipe forming the high-pressure rubber pipe assembly comprises an inner rubber pipe core for conveying media, a steel woven skeleton layer, an outer rubber layer, a fireproof rubber layer, an outer woven steel wire layer and a polyurethane insulating layer. Because the rubber tube assembly is extremely widely used and is mostly pulled and dragged in the using process, the pipe connection is completed.

Chinese patent No. CN203488869U discloses a high pressure hose assembly. The high-pressure rubber pipe assembly comprises a high-pressure rubber pipe and a pipe connector connected to the end of the high-pressure rubber pipe, wherein the high-pressure rubber pipe comprises an inner rubber pipe core, a steel woven framework layer, an outer rubber layer, a fireproof rubber layer, an outer woven steel wire layer and a polyurethane insulating layer; the outside of the high-pressure rubber pipe is sleeved with a steel wire spring ring.

The above prior art suffers from the following disadvantages: after the high-pressure rubber pipe is used for too long, the steel wire spring ring on the outer side of the high-pressure rubber pipe is easy to fatigue, so that the high-pressure rubber pipe is insufficient in elasticity and can be normally used after being replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-pressure rubber tube is used in brake, it has the effect that the steel wire spring circle in the high-pressure rubber tube outside is changed to the convenience.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a high-pressure rubber tube for brake, includes the rubber tube body, rubber tube body middle section is equipped with the rubber tube cover, the rubber tube body is kept away from rubber tube cover one end and is equipped with the snap ring, the cover is equipped with the ring cover on the rubber tube cover, be connected with damping spring between screw thread cover and the snap ring, damping spring is equipped with the coupling mechanism who is used for connecting damping spring near rubber tube cover one end, damping spring is close to snap ring one end and is fixed with the thread bush, it has the cylinder cover to overlap the screw thread on the.

Through adopting above-mentioned technical scheme, when the installation rubber tube, the operator overlaps the ring cover that damping spring was served and is established on the rubber tube cover, then utilize coupling mechanism to be connected ring cover and rubber tube cover, fix damping spring's one end, then carry out threaded connection with damping spring's the other end and snap ring, thereby install whole high-pressure rubber tube, can install the car with the rubber tube body this moment on, in whole damping spring live time overlength, damping spring self is tired, elasticity reduces, utilize this structure can realize the dismouting to damping spring, be convenient for change.

The utility model discloses further set up to: coupling mechanism sheathes and with ring cover complex annular including offering at the rubber tube, set up the draw-in groove that communicates with the annular on the rubber tube cover, it is connected with the card strip to rotate on the cell wall of draw-in groove, the radial direction of card strip rotation plane along the rubber tube body, ring cover stretches into annular one end and is equipped with the cardboard, set up on the cardboard with card strip complex ratchet, be equipped with drive cardboard in the pivot of card strip to the cell wall direction pivoted torsional spring that is close to the draw-in groove.

Through adopting above-mentioned technical scheme, when connecting damping spring's one end, the operator is gone into the draw-in groove department of rubber tube sleeve with the cardboard card, card along with the card income of cardboard, the ratchet of cardboard front end promotes the card strip and rotates, then when installing suitable position, the card strip is under the effect of spring, the card stops the ratchet, prevent the ratchet pull-back, thereby fix the position of cardboard, when dismantling damping spring, the operator only needs to stir the card strip, stir the card strip to the direction that is close to the ring cover, make card strip and ratchet unblock, can pull out the ring cover, dismantle damping spring.

The utility model discloses further set up to: the rubber tube body is connected with the staple bolt near snap ring port department, the staple bolt has seted up the card hole, set up on the snap ring with card hole complex through-hole, wear to be equipped with the locking bar between card hole and the through-hole.

Through adopting above-mentioned technical scheme, be connected damping spring's one end and crown plate after, the operator will block the hole and correspond with the through-hole, then insert the holding strip in card hole and through-hole, utilize this structure to prevent that damping spring when receiving external effort, threaded connection unscrews, fixes damping spring's position.

The utility model discloses further set up to: the locking strip is provided with a conical bulge at one end penetrating through the clamping hole.

Through adopting above-mentioned technical scheme, set up the protruding purpose of toper and restrict the locking strip and play from card hole and through-hole.

The utility model discloses further set up to: the inner side of the rubber tube body is attached with a nickel-chromium carbide wear-resistant coating.

By adopting the technical scheme, the coating has the advantages of low stress, strong membrane-base binding force, good high-temperature friction and wear resistance and good thermal stability, and the coating is arranged on the inner side wall of the high-pressure rubber pipe, so that the wear resistance of the whole high-pressure rubber pipe is increased, the service life of the whole high-pressure rubber pipe is prolonged, and meanwhile, the high-pressure rubber pipe is enabled to have certain high-temperature resistance.

The utility model discloses further set up to: and a magnesium phosphate inorganic heat-insulating coating layer is attached between the rubber tube body and the nickel-chromium carbide wear-resistant coating.

By adopting the technical scheme, the coating is attached to the inner side wall of the rubber tube body, so that the rubber tube body has better heat-insulating property, and meanwhile, the coating has strong adhesive property, can be stably attached to the inner side of the rubber tube body, and is convenient for attaching the nickel-chromium carbide wear-resistant coating.

The utility model discloses further set up to: and a tungsten carbide coated wear-resistant material layer is attached between the nickel-chromium carbide wear-resistant coating and the magnesium phosphate inorganic heat-insulating coating layer.

By adopting the technical scheme, the main material of the wear-resistant material layer coated by the tungsten carbide is the tungsten carbide which is a compound consisting of tungsten and carbon, the hardness of the compound is close to that of diamond, and the chemical property of the compound is stable. The tungsten carbide has the characteristics of good hardness and stable property, so that the rubber hose body has certain wear resistance and corrosion resistance, and the tungsten carbide is attached between the nickel-chromium carbide wear-resistant coating and the magnesium phosphate inorganic heat-insulating coating layer to enhance the wear-resistant effect of the nickel-chromium carbide wear-resistant coating and further protect the magnesium phosphate inorganic heat-insulating coating layer on the inner side.

The utility model discloses further set up to: and a nano ceramic wear-resistant coating is attached to the outer side of the nickel-chromium carbide wear-resistant coating.

By adopting the technical scheme, the nano ceramic wear-resistant coating is mainly made of alumina with nanoscale granularity, and protects the coating in the whole rubber tube body, so that the wear resistance of the rubber tube body is further enhanced.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the damping spring is used for a long time, the damping spring is fatigue and the elasticity is reduced, and the damping spring can be disassembled and assembled and replaced by the structure;

2. the nickel-chromium carbide wear-resistant coating coated on the inner side wall of the rubber hose body increases the wear resistance of the whole high-pressure rubber hose, prolongs the service life of the whole high-pressure rubber hose and simultaneously ensures that the high-pressure rubber hose has certain high-temperature resistance.

Drawings

Fig. 1 is a schematic view of the external structure of the present invention.

Fig. 2 is a longitudinal sectional view of the coupling mechanism.

Fig. 3 is a schematic view of the cylindrical sleeve connection structure of the present invention.

Fig. 4 is a schematic view of the layer structure of the present invention.

In the figure, 1, a hose body; 11. a damping spring; 12. a rubber hose sleeve; 13. a snap ring; 14. sleeving a ring; 15. a threaded sleeve; 2. a connecting mechanism; 21. a ring groove; 22. a card slot; 23. clamping the strip; 24. clamping a plate; 25. a ratchet; 26. a torsion spring; 3. a cylindrical sleeve; 31. hooping; 32. a clamping hole; 33. a through hole; 34. a locking bar; 35. a conical projection; 4. a nickel chromium-chromium carbide wear resistant coating; 41. a magnesium phosphate inorganic heat insulation coating layer; 42. tungsten carbide cladding wear-resistant material layer; 43. a nano ceramic wear-resistant coating.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A high-pressure rubber pipe for a brake is shown in figures 1 and 2 and comprises a rubber pipe body 1, a rubber pipe sleeve 12 is fixed at the middle section of the rubber pipe body 1, a snap ring 13 is connected to one end, far away from the rubber pipe sleeve 12, of the rubber pipe body 1, a ring sleeve 14 is connected to the rubber pipe sleeve 12, a threaded sleeve 15 is connected to the snap ring 13, a damping spring 11 is connected between the threaded sleeve 15 and the ring sleeve 14, the damping spring 11 is sleeved on the outer side of the whole rubber pipe body 1, and a connecting mechanism 2 for connecting one end of the damping spring 11 with the rubber pipe sleeve 12 is arranged between the ring sleeve 14 and the rubber pipe sleeve 12. After the end of the damping spring 11 is installed, the threaded sleeve 15 on the other end of the damping spring 11 is sleeved on the snap ring 13, and the threaded sleeve 15 is in threaded connection with the cylindrical sleeve 3 to connect the other end of the damping spring 11.

As shown in fig. 2, in the present embodiment, the connecting mechanism 2 includes a ring groove 21 formed on the rubber hose sleeve 12, the ring groove 21 is connected to the ring sleeve 14 in a matching manner, a locking groove 22 is formed on the ring groove 21, the locking groove 22 connects the outer surface of the rubber hose sleeve 12 with the inside of the ring groove 21, and the number of the locking grooves 22 is two and is formed along the radial direction of the rubber hose sleeve 12. All be connected with a card strip 23 in the groove limit department of every draw-in groove 22 rotation, the radial direction of rubber tube sleeve 12 is followed to the rotation plane of card strip 23, stretch into annular 21 one end at ring cover 14 simultaneously and be fixed with a cardboard 24, the card 24 be close to draw-in groove 22 one end still be fixed with a plurality of ratchets 25, ratchet 25 sets up towards the outside of annular 21, and be connected with drive card strip 23 in the pivot of card strip 23 and to the cell wall department pivoted torsional spring 26 that is close to draw-in groove 22, torsional spring 26 makes the position of card strip 23 keep being in the radial direction of rubber tube body 1. When one end of the damping spring 11 is installed, an operator firstly clamps the ring sleeve 14 into the annular groove 21, at the moment, the clamping plate 24 is inserted into the annular groove 21 along with the clamping plate 24, then the lower end of the clamping strip 23 is pushed, and after the damping spring is installed in place, the ratchet 25 is meshed with the clamping strip 23 to limit outward movement of the clamping plate 24, so that installation of one end of the damping spring 11 is completed.

As shown in fig. 3, an anchor ear 31 is further connected to an end of the snap ring 13 away from the damping spring 11, a locking hole 32 is formed on the anchor ear 31, a through hole 33 matching with the locking hole 32 is formed on the snap ring 13, and the locking hole 32 and the through hole 33 are both located near one end of the cylindrical sleeve 3. Meanwhile, a locking bar 34 is connected between the clamping hole 32 and the through hole 33 in a penetrating manner. In this embodiment, the locking bar 34 is made of elastic metal, and a tapered protrusion 35 is fixed to one end of the locking bar 34. After the locking bar 34 is inserted into the clamping hole 32 and the through hole 33, the side surface of the locking bar 34 is close to the upper end of the cylindrical sleeve 3, so that the cylindrical sleeve 3 is prevented from being unscrewed when the damping spring is used, and one end of the damping spring is prevented from loosening. When one end of the damping spring 11 is installed, an operator sleeves the threaded sleeve 15 on the snap ring 13, then threadedly connects the cylindrical sleeve 3 with the threaded sleeve 15, then sleeves the anchor ear 31 on the snap ring 13, then corresponds the clamping hole 32 with the through hole 33, and then inserts the locking bar 34 into the clamping hole 32 and the through hole 33 to complete installation of the damping spring 11.

As shown in fig. 4, a nickel-chromium carbide wear-resistant coating 4 is attached to the inner side of the rubber hose body 1, the nickel-chromium carbide wear-resistant coating 4 is made of metal ceramics composed of a metal alloy bonding phase NiCr and a ceramic hard phase Cr3C2 in different proportions, and is prepared by using the technologies of supersonic flame spraying, high enthalpy plasma spraying and the like, the nickel-chromium carbide has the characteristics of high hardness, good wear resistance and high bonding force, and simultaneously has excellent high-temperature oxidation resistance and wear resistance, and the coating is attached to the inner side of the rubber hose body 1, so that the whole rubber hose body 1 has certain wear resistance. Meanwhile, a magnesium phosphate inorganic heat insulation coating layer 41 is attached between the rubber hose body 1 and the nickel-chromium carbide wear-resistant coating 4, the magnesium phosphate material is mainly prepared by reacting active magnesium oxide with phosphate, and in the embodiment, the main component of the phosphate is potassium dihydrogen phosphate. The coating has certain high temperature resistance and certain strong adhesiveness, so that the whole rubber hose body 1 has high temperature resistance, and meanwhile, the strong adhesiveness also facilitates the attachment of the nickel-chromium carbide wear-resistant coating 4.

As shown in fig. 4, a tungsten carbide coated wear-resistant material layer 42 is bonded between the nickel-chromium carbide wear-resistant coating 4 and the magnesium phosphate inorganic heat-insulating coating layer 41, the main material of the tungsten carbide coated wear-resistant material layer 42 is tungsten carbide, and the hardness of the tungsten carbide is similar to that of diamond and the tungsten carbide has stable chemical properties. The tungsten carbide has the characteristics of good hardness and stable property, so that the rubber hose body 1 has certain wear resistance and corrosion resistance. Meanwhile, the coating thickness of the nickel-chromium carbide wear-resistant coating 4 is 40-60nm, the nano ceramic wear-resistant coating 43 is attached to the outer side of the nickel-chromium carbide wear-resistant coating 4, the main material of the nano ceramic wear-resistant coating 43 is alumina or titanium oxide with nanoscale granularity, and the wear resistance of the rubber hose body 1 is improved by utilizing the coating.

The specific implementation principle of the embodiment is as follows: when installing damping spring 11, the operator is blocked the ring cover 14 in draw-in groove 22, make cardboard 24 insert in draw-in groove 22 simultaneously, cardboard 24 will block 23 lower extreme jack-ups this moment, later along with stretching into of cardboard 24, make ratchet 25 and card strip 23 interlock mutually, realize being connected of damping spring 11 one end, later establish threaded sleeve 15 cover on snap ring 13, later carry out threaded connection with cylinder cover 3 and threaded sleeve 15, then insert card strip 23 in calorie hole 32 and through-hole 33, accomplish the installation of the damping spring 11 other end. At this point the damper spring 11 is installed.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a high-pressure rubber tube is used in brake, includes rubber tube body (1), characterized by: rubber tube body (1) middle section is equipped with rubber tube cover (12), rubber tube body (1) is kept away from rubber tube cover (12) one end and is equipped with snap ring (13), the cover is equipped with ring cover (14) on rubber tube cover (12), is connected with damping spring (11) between thread bush (15) and ring cover (14), damping spring (11) are close to rubber tube cover (12) one end and are equipped with coupling mechanism (2) that are used for connecting damping spring (11), damping spring (11) are close to snap ring (13) one end and are fixed with thread bush (15), threaded connection has cylinder cover (3) on thread bush (15).

2. The high-pressure rubber hose for a brake as claimed in claim 1, wherein: coupling mechanism (2) including offer on rubber tube sleeve (12) and with ring cover (14) complex annular (21), offer draw-in groove (22) with annular (21) intercommunication on rubber tube sleeve (12), it is connected with card strip (23) to rotate on the cell wall of draw-in groove (22), the radial direction of rubber tube body (1) is followed to card strip (23) rotation plane, ring cover (14) stretch into annular (21) one end and are equipped with cardboard (24), seted up on cardboard (24) with card strip (23) complex ratchet (25), be equipped with drive cardboard (24) in the pivot of card strip (23) to cell wall direction pivoted torsional spring (26) that is close to draw-in groove (22).

3. The high-pressure rubber hose for a brake as claimed in claim 1, wherein: snap ring (13) port department is connected with staple bolt (31), card hole (32) have been seted up on staple bolt (31), seted up on snap ring (13) with card hole (32) complex through-hole (33), wear to be equipped with locking strip (34) between card hole (32) and through-hole (33).

4. The high-pressure rubber hose for a brake as claimed in claim 3, wherein: one end of the locking strip (34) penetrating through the clamping hole (32) is provided with a conical protrusion (35).

5. The high-pressure rubber hose for a brake as claimed in claim 1, wherein: the inner side of the rubber tube body (1) is attached with a nickel-chromium carbide wear-resistant coating (4).

6. The high-pressure rubber hose for the brake as claimed in claim 5, wherein: and a magnesium phosphate inorganic heat insulation coating layer (41) is attached between the rubber tube body (1) and the nickel-chromium carbide wear-resistant coating (4).

7. The high-pressure rubber hose for a brake as claimed in claim 6, wherein: and a tungsten carbide coated wear-resistant material layer (42) is attached between the nickel-chromium carbide wear-resistant coating (4) and the magnesium phosphate inorganic heat-insulating coating layer (41).

8. The high-pressure rubber hose for a brake as claimed in claim 7, wherein: and a nano ceramic wear-resistant coating (43) is attached to the outer side of the nickel-chromium 4-chromium carbide wear-resistant coating (4).