High-performance wear-resistant extremely-cold-resistant inflatable hose

Abstract

The utility model relates to the technical field of inflatable hoses, in particular to a high-performance wear-resistant extremely-cold-resistant inflatable hose. The inflation hose comprises a metal corrugated pipe, the metal corrugated pipe is sleeved with a steel wire mesh sleeve, the steel wire mesh sleeve is sleeved with a long connecting pipe, the long connecting pipe is sleeved with a vulcanization layer, one end of the metal corrugated pipe is connected with a long inner cone connecting nozzle in an inserted mode, and the outer surface of the long inner cone connecting nozzle is sleeved with a nut in a threaded mode. And a long outer cone connecting nozzle is inserted into the other end of the steel wire mesh sleeve. The inflatable hose can meet the requirement of a dew point of-65 DEG C by adopting a metal corrugated pipe structure, can meet the requirements of 40MPa working pressure and 120MPa bursting pressure structure by adopting a steel wire mesh sleeve structure and adopting a high-pressure brazing form after double-layer weaving, and meanwhile, the vulcanization layer is arranged outside the long connecting pipe in a sleeving manner, so that the service life of the long connecting pipe is prolonged. Therefore, the inflatable hose has excellent oxidation resistance, ozone resistance and erosion resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable hoses, and more specifically, to a high-performance, wear-resistant and extremely cold-resistant inflatable hose. Background Art

[0002] The inflation hose is used for gas delivery and connection to deliver gas that meets the requirements, providing fast, convenient and highly reliable guarantee for ground inflation.

[0003] 1. According to the requirements, the inflatable vehicle needs to measure the dew point (-65℃) before each inflation, but non-metallic materials cannot meet the requirements due to their molecular structure problems;

[0004] 2. When the inflatable vehicle is inflated, the inflation pressure will reach 22.8MPa, and in some areas it can reach more than 30MPa, and the inflation frequency is frequent. The normal pressure of ordinary hoses can only reach 23MPa, which cannot meet the requirements;

[0005] 3. In extremely cold environments, the outer vulcanized rubber layer of the inflation hose will harden, making it difficult to connect the pipes and affecting operation;

[0006] 4. The inflatable hose needs to rub against the ground when in use. The outer vulcanized rubber layer is easily damaged after long-term use, causing the pipeline to fail and cannot be used for a long time;

[0007] Therefore, a new type of high-performance wear-resistant and extremely cold-resistant inflatable hose is urgently needed to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide a high-performance wear-resistant and extreme cold-resistant inflatable hose with a simple structure and reasonable design in order to solve the above problems.

[0009] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0010] A high-performance, wear-resistant and extremely cold-resistant inflatable hose, comprising a metal bellows, the outer shell of the metal bellows is connected with a wire mesh sleeve, the outer shell of the wire mesh sleeve is connected with a long connecting pipe, and the outer shell of the long connecting pipe is provided with a vulcanized layer, one end of the metal bellows is plugged with a long inner cone nozzle, and the outer surface of the long inner cone nozzle is threaded with a nut, and the other end of the wire mesh sleeve is plugged with a long outer cone nozzle; support mechanisms are provided inside and outside the metal bellows, and the support mechanisms are used to reinforce the metal bellows to ensure that the tube body of the metal bellows is not deformed, and the support mechanisms include a core rod, an inner support ring, an outer support ring and a rubber ring.

[0011] As a further optimization solution of the utility model, both ends of the wire mesh sleeve are fixedly sleeved with rings, and the outer wall of the ring fits with the inner wall of the long pipe.

[0012] As a further optimization scheme of the utility model, the core rod is transversely passed through the metal bellows, and a plurality of inner support rings are arranged on the core rod at intervals, and the plurality of inner support rings are distributed along the axial direction of the core rod, and a first telescopic component is arranged between each inner support ring and the core rod, and the plurality of inner support rings are distributed at intervals on the inner side of the trough of the metal bellows, and a plurality of outer support rings are arranged, and the plurality of outer support rings are distributed at intervals on the outer side of the trough of the metal bellows and correspond one-to-one with the inner support rings, and a second telescopic component is arranged on the outer side of each outer support ring.

[0013] As a further optimization scheme of the utility model, there are multiple rubber rings, and the multiple rubber rings are arranged at intervals outside the wave crest of the metal bellows. The rubber ring surrounds the outside of the wave crest of the metal bellows and fits tightly with the outer wall of the wave crest of the metal bellows.

[0014] As a further optimization scheme of the utility model, the first telescopic assembly includes a first insertion rod and a first sleeve, one end of the first insertion rod is fixed to the inner support ring, one end of the first sleeve is fixed to the core rod, a slot is provided at the end of the first sleeve facing away from the core rod, the other end of the first insertion rod is movably inserted in the slot, and a first spring is welded between the first insertion rod and the inner wall of the slot.

[0015] As a further optimization scheme of the utility model, the second telescopic assembly includes a second plug rod and a second sleeve, one end of the second plug rod is fixed to the outer support ring, the second sleeve is provided with another slot adapted to the second plug rod, and a second spring is welded between the inner wall of the other slot and the second plug rod, and one end of the second sleeve away from the outer support ring abuts against the inner wall of the wire mesh sleeve.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model adopts a metal bellows structure inside the inflatable hose to meet the dew point requirement of -65°C, and a wire mesh sleeve structure is adopted outside the metal bellows. After double-layer weaving, high-pressure brazing is adopted to meet the working pressure of 40MPa and the bursting pressure structure of 120MPa. At the same time, a vulcanized layer is arranged on the outer sleeve of the long connecting pipe. By improving the vulcanized layer to an extremely cold and low-temperature resistant rubber material, it has excellent vulcanization performance and protects the main structure of the inflatable hose, so that the inflatable hose has excellent oxidation resistance, ozone resistance and erosion resistance.

[0018] 2. The utility model is provided with a supporting mechanism. When gas flows through the metal bellows, the inner core rod, the inner supporting ring, the first insert rod, the first sleeve and the first spring cooperate with each other to support the inside of the metal bellows, thereby ensuring that the tube wall of the metal bellows is not deformed. At the same time, the outer supporting ring and the rubber ring are cooperated to protect the inner and outer sides of the metal bellows at the same time, thereby further improving the pressure-bearing capacity of the metal bellows and extending the service life of the metal bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the inflatable hose structure of the utility model;

[0021] Figure 3 It is a front view cross-sectional schematic diagram of the overall structure of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the metal bellows and the supporting mechanism of the utility model;

[0023] Figure 5 The utility model Figure 3 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 6 The utility model Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the outer support ring, the second insertion rod and the second sleeve of the utility model.

[0026] In the figure: 1. metal bellows; 2. wire mesh sleeve; 3. collar; 4. long connecting pipe; 5. vulcanized layer; 6. long inner cone joint; 7. nut; 8. long outer cone joint; 11. mandrel; 12. inner support ring; 121. first plug rod; 122. first sleeve; 123. first spring; 13. outer support ring; 131. second plug rod; 132. second sleeve; 133. second spring; 14. rubber ring. DETAILED DESCRIPTION

[0027] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0028] Embodiment 1:

[0029] Please refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 3 A high-performance wear-resistant and extremely cold-resistant inflatable hose comprises a metal bellows 1. The metal bellows 1 is used as a transmission channel for the medium, and plays a role in bending, displacement compensation and sealing. The metal bellows 1 adopts a metal bellows structure, which can meet the dew point requirement of -65°C. A steel wire mesh sleeve 2 is connected to the outer surface of the metal bellows 1. The steel wire mesh sleeve 2 and the metal bellows 1 form a double-layer structure. The steel wire mesh sleeve 2 is woven on the outside of the metal bellows 1 so that the inflatable hose has sufficient strength and can meet the expected working pressure requirements. The steel wire mesh sleeve 2 adopts a steel wire braided layer structure. After the double-layer brazing, high-pressure brazing is adopted to meet the working pressure of 40MPa and the bursting pressure of 120MPa. During high-frequency brazing, argon gas is passed through the inside and outside of the metal bellows 1 for protection to ensure the strength of the weld. A long pipe 4 is fixedly connected to the outer surface of the steel wire mesh sleeve 2, and a vulcanized layer 5 is provided on the outer fixed sleeve of the long pipe 4. The vulcanized layer 5 serves as a protective layer and plays a role in wear resistance. The chemical layer 5 is improved to an extremely cold and low temperature resistant rubber material (EPDM glue). EPDM glue is a terpolymer of ethylene, propylene and non-conjugated dienes, has excellent oxidation resistance, ozone resistance and corrosion resistance, has excellent vulcanization performance, and has a temperature adaptability of -60°C to +200°C. It can be used normally for a long time in this temperature range. Both ends of the steel wire mesh sleeve 2 are fixedly sleeved with a collar 3, and the outer wall of the collar 3 fits with the inner wall of the long pipe 4. The collar 3 sleeved at both ends of the steel wire mesh sleeve 2 can support the steel wire mesh sleeve 2, so that the steel wire mesh sleeve 2 can better protect the metal bellows 1. One end of the metal bellows 1 is plugged with a long inner cone nozzle 6, and the outer surface of the long inner cone nozzle 6 is threadedly sleeved with a nut 7. The other end of the steel wire mesh sleeve 2 is plugged with a long outer cone nozzle 8. The long inner cone nozzle 6, the nut 7 and the long outer cone nozzle 8 are used to assist the inflatable hose to connect the aircraft, the inflatable car and the bellows body without leakage.

[0030] Among them, the outer layer of the inflation hose is made of flame-retardant polyurethane, which is a high molecular compound composed of diisocyanate or polyisocyanate and polymers containing nitrogen, epoxy and other groups, commonly known as "wear-resistant rubber". It has excellent weather resistance and mechanical strength, and can thus protect the main structure of the inflation hose.

[0031] Embodiment 2:

[0032] Please refer to the attached Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7, a support mechanism is provided both inside and outside the metal bellows 1. The support mechanism is used to reinforce the metal bellows 1 and ensure that the pipe body of the metal bellows 1 does not deform;

[0033] The support mechanism includes a mandrel 11, an inner support ring 12, and an outer support ring 13. The mandrel 11 passes through the metal bellows 1. A plurality of inner support rings 12 are provided at intervals on the mandrel 11. The plurality of inner support rings 12 are distributed along the axial direction of the mandrel 11. And a first telescopic assembly is provided between each inner support ring 12 and the mandrel 11. The first telescopic assembly includes a first plug rod 121, a first sleeve 122, and a first spring 123. One end of the first plug rod 121 is fixed to the inner support ring 12. One end of the first sleeve 122 is fixed to the mandrel 11. A slot is opened at the end of the first sleeve 122 facing away from the mandrel 11. The other end of the first plug rod 121 is movably inserted into the slot, and a first spring 123 is welded between the other end of the first plug rod 121 and the inner wall of the slot. The plurality of inner support rings 12 are spaced apart and distributed inside the troughs of the metal bellows 1. A plurality of outer support rings 13 are provided. The plurality of outer support rings 13 are spaced apart and distributed outside the troughs of the metal bellows 1 and correspond to the inner support rings 12 one by one. A second telescopic assembly is provided on the outside of each outer support ring 13. The second telescopic assembly includes a second plug rod 131, a second sleeve 132, and a second spring 133. One end of the second plug rod 131 is fixed to the outer support ring 13. Another slot adapted to the second plug rod 131 is opened on the second sleeve 132. And a second spring 133 is welded between the inner wall of the other slot and the second plug rod 131. The end of the second sleeve 132 away from the outer support ring 13 abuts against the inner wall of the wire mesh sleeve 2. By respectively providing a plurality of inner support rings 12 and outer support rings 13 inside and outside the metal bellows 1, the inside and the outer wall of the metal bellows 1 can be protected, avoiding damage to the metal bellows 1 caused by the impact force generated when nitrogen flows inside the metal bellows 1. And when the metal bellows 1 expands and contracts, through the mutual cooperation between the first telescopic assembly and the second assembly, a buffer space is formed with the metal bellows 1, enabling the metal bellows 1 to withstand a greater axial force, thereby greatly improving the pressure-bearing capacity of the metal bellows 1;

[0034] The support mechanism further includes rubber rings 14. A plurality of rubber rings 14 are provided. And the plurality of rubber rings 14 are spaced apart and arranged outside the peaks of the metal bellows 1. The rubber rings 14 surround the outside of the peaks of the metal bellows 1 and are in close fit with the outer wall of the peaks of the metal bellows 1. By providing the plurality of rubber rings 14, the outside of the metal bellows 1 can be protected, thereby extending the service life of the metal bellows 1.

[0035] It should be noted that when the inflatable vehicle is inflated, the metal bellows 1 expands and contracts. Multiple inner support rings 12 and outer support rings 13 support the inner and outer sides of the troughs of the metal bellows 1. Through the interaction of the first telescopic component and the second telescopic component, the telescopic cooperation between the first plug rod 121, the first sleeve 122 and the first spring 123, as well as the second plug rod 131, the second sleeve 132 and the second spring 133 forms a certain buffer space, increasing the strength of the metal bellows 1 and effectively improving the pressure-bearing capacity of the metal bellows 1. Moreover, the rubber ring 14 is on the outer side of the peak of the metal bellows 1, which can further protect the outer side of the metal bellows 1 to support the metal bellows 1 to withstand greater pressure.

[0036] The above describes the embodiments of this example, but this example is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this example, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this example.

Claims

1. A high-performance wear-resistant and extremely cold-resistant inflatable hose, characterized in that, include: A metal bellows (1), wherein the outer surface of the metal bellows (1) is connected to a steel mesh sleeve (2), the outer surface of the steel mesh sleeve (2) is connected to a long pipe (4), and the outer surface of the long pipe (4) is provided with a vulcanized layer (5), one end of the metal bellows (1) is plugged with a long inner cone joint (6), and the outer surface of the long inner cone joint (6) is threadedly sleeved with a nut (7), and the other end of the steel mesh sleeve (2) is plugged with a long outer cone joint (8); The metal bellows (1) is provided with support mechanisms both inside and outside, the support mechanisms are used to reinforce the metal bellows (1) and ensure that the tube body of the metal bellows (1) does not deform, the support mechanisms comprising a core rod (11), an inner support ring (12), an outer support ring (13) and a rubber ring (14).

2. The high-performance wear-resistant and extremely cold-resistant inflatable hose according to claim 1, characterized in that, Both ends of the wire mesh sleeve (2) are fixedly sleeved with sleeve rings (3), and the outer wall of the sleeve ring (3) and the inner wall of the long pipe (4) fit each other.

3. The high-performance wear-resistant and extremely cold-resistant inflatable hose according to claim 1, wherein The core rod (11) is disposed transversely in the metal bellows (1). A plurality of inner support rings (12) are arranged at intervals on the core rod (11). The plurality of inner support rings (12) are distributed along the axial direction of the core rod (11). A first telescopic assembly is provided between each inner support ring (12) and the core rod (11). The plurality of inner support rings (12) are distributed at intervals on the inner side of the wave valley of the metal bellows (1). A plurality of outer support rings (13) are provided. The plurality of outer support rings (13) are distributed at intervals on the outer side of the wave valley of the metal bellows (1) and correspond one-to-one to the inner support rings (12). A second telescopic assembly is provided on the outer side of each outer support ring (13).

4. The high-performance wear-resistant and extremely cold-resistant inflatable hose according to claim 1, wherein A plurality of rubber rings (14) are provided, and the plurality of rubber rings (14) are arranged at intervals on the outside of the wave crest of the metal bellows (1); the rubber rings (14) surround the outside of the wave crest of the metal bellows (1) and fit tightly with the outer wall of the wave crest of the metal bellows (1).

5. The high-performance wear-resistant and extremely cold-resistant inflatable hose according to claim 3, wherein The first telescopic assembly comprises a first insertion rod (121) and a first sleeve (122), one end of the first insertion rod (121) is fixed to the inner support ring (12), one end of the first sleeve (122) is fixed to the core rod (11), a slot is provided at one end of the first sleeve (122) facing away from the core rod (11), the other end of the first insertion rod (121) is movably inserted in the slot, and a first spring (123) is welded between the first insertion rod (121) and the inner wall of the slot.

6. The high-performance wear-resistant and extremely cold-resistant inflatable hose according to claim 3, characterized in that, The second telescopic assembly comprises a second plug rod (131) and a second sleeve (132), one end of the second plug rod (131) is fixed to the outer support ring (13), the second sleeve (132) is provided with another slot adapted to the second plug rod (131), and a second spring (133) is welded between the inner wall of the other slot and the second plug rod (131), and one end of the second sleeve (132) away from the outer support ring (13) is in contact with the inner wall of the wire mesh sleeve (2).

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