High-temperature-resistant insulating rubber hose

Abstract

The utility model discloses a high-temperature-resistant insulating rubber hose which comprises a rubber hose main body, an anti-rolling structure is arranged on the outer side of the rubber hose main body, and the anti-rolling structure comprises a lantern ring, a supporting plate and a bottom plate. According to the utility model, the inner rubber layer made of the HNBR hydrogenated nitrile synthetic rubber material is arranged on the inner side of the rubber hose main body, and the HNBR hydrogenated nitrile synthetic rubber material has oil resistance, water resistance, high temperature resistance, low temperature resistance, low compression deformation and high sealing performance, so that the rubber hose can be normally used in a temperature range of-45 DEG C to + 130 DEG C; the anti-rolling structure is mounted on the outer side of the rubber hose main body, and the detachable anti-rolling structure is mounted on the part, easily rolled by a vehicle, of the rubber hose main body, so that the rubber hose main body is supported and protected, and the pressure generated when the vehicle passes through is shared; and the situation that material circulation is affected due to the fact that the rubber hose is subjected to large pressure in the material conveying process is avoided, or the situation that the rubber hose is damaged after being rolled for a long time is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rubber hose technology, and in particular to a high-temperature resistant insulating rubber hose. Background Technology

[0002] High-temperature resistant insulating rubber hoses are special types of hoses that maintain excellent insulation and physical-mechanical properties even at high temperatures. They can be used as insulating protective sleeves for wires and cables to prevent electrical faults such as current leakage and short circuits. In industrial equipment, these hoses can be used to connect various high-temperature fluid pipelines and electrical circuits, ensuring the normal operation of equipment and systems. In the automotive manufacturing industry, high-temperature resistant insulating rubber hoses can be used to protect high-temperature wires and cables in engine compartments, as well as to connect various sensors and actuators. In the aerospace industry, these hoses can be used for the connection and protection of electrical and hydraulic systems in high-temperature environments.

[0003] During pipeline transportation, the material may pass over road surfaces that are used by vehicles or trolleys. Without a hose protection structure, the hose may be subjected to significant pressure during vehicle passage, affecting the normal transportation of materials or even causing the hose to rupture.

[0004] A large-diameter long-distance fluid supply hose disclosed in Chinese patent document CN220354695U includes an inner tube and an outer tube sleeved outside the inner tube. The outer tube includes an outer wear-resistant rubber layer and an inner high-temperature resistant rubber layer. A metal mesh layer is disposed between the wear-resistant rubber layer and the high-temperature resistant rubber layer. The provided large-diameter long-distance fluid supply hose, with the outer tube composed of the wear-resistant rubber layer and the high-temperature resistant rubber layer, ensures that the hose is less worn when dragged, thus guaranteeing its service life. The metal mesh layer can improve the tensile strength of the hose. When exposed to high temperatures, the outer wear-resistant rubber layer melts, and the high temperature comes into contact with the metal mesh layer. The metal mesh layer transfers heat to the surroundings, preventing heat accumulation and reducing the temperature that the high-temperature resistant rubber layer needs to withstand, protecting the hose from burning through or prolonging the time before the hose burns through. However, this large-diameter long-distance fluid supply hose relies on its own material to achieve pressure and tensile strength. Some parts of the hose need to pass through sections of road where vehicles pass by, and frequent vehicle traffic may cause the hose without protective structure to rupture.

[0005] To address the shortcomings of the existing technology, providing a high-temperature resistant insulating rubber hose is a problem worthy of research. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of pipeline transportation, where the road surface may be traversed by vehicles or carts. Without a hose protection structure, the hose may be subjected to significant pressure during vehicle passage, affecting the normal transportation of materials or even causing the hose to rupture. This utility model provides a high-temperature resistant insulated rubber hose, achieving the technical effect of protecting the hose from crushing.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A high-temperature resistant insulating rubber hose includes a rubber hose body, and an anti-crushing structure is provided on the outside of the rubber hose body.

[0009] The anti-crushing structure includes several collars sleeved on the outside of the rubber hose body, support plates fixedly connected to both sides of the collars, and a base plate fixedly connected to the bottom of the collars.

[0010] The inner diameter of the collar is adapted to the diameter of the rubber hose body. The top of the collar is open. The friction coefficient between the inner wall of the collar and the rubber hose body is greater than two. By setting the collar on the outside of the rubber hose body, the anti-rollover structure is installed on the outside of the rubber hose body. The detachable anti-rollover structure is installed on the part of the rubber hose body that is easily run over by vehicles, thereby providing support and protection for the rubber hose body and distributing the pressure of passing vehicles.

[0011] The support plate is hollow, with a sloping top and a rounded bottom. The support plate is made of polyetherketone. By setting hollow support plates on both sides of the collar, the sloping top can guide the vehicle's tires to lift and pass through the rubber hose, reducing the pressure on the rubber hose from the vehicle or other heavy objects.

[0012] Each of the base plates is fixedly connected by a connecting strip, which is made of HNBR hydrogenated nitrile butadiene synthetic rubber and is located on both sides of the base plate.

[0013] An arc-shaped groove is formed in the middle of the base plate, and suction cup grooves are formed on both sides of the bottom of the base plate. The shape of the arc-shaped groove is adapted to the top shape of the rubber hose body.

[0014] The rubber hose body includes an inner rubber layer located on the inside, a reinforcing layer located on the outside of the inner rubber layer, and an outer rubber layer located on the outside of the reinforcing layer.

[0015] The inner rubber layer is made of HNBR hydrogenated nitrile butadiene synthetic rubber, and the temperature resistance range of the inner rubber layer is -45℃ to +130℃. HNBR hydrogenated nitrile butadiene synthetic rubber has oil resistance, water resistance, high temperature resistance, low temperature resistance, low compression deformation, and high sealing performance, enabling the rubber hose to be used normally in the temperature range of -45℃ to +130℃.

[0016] The reinforcing layer is made of impregnated polyester yarn or impregnated aramid yarn. The impregnated polyester yarn has a specification of 4000D. The reinforcing layer is composed of a fiber braided structure made of 1 to 3 layers of impregnated polyester yarn or impregnated aramid yarn. The tensile strength of the reinforcing layer is not less than 280N. A nitrile rubber filler layer is provided between the reinforcing layers. The nitrile rubber filler layer has good oil resistance, wear resistance and heat resistance, and is a commonly used material for manufacturing the filler layer of vulcanized hoses.

[0017] The outer adhesive layer is made of HNBR hydrogenated nitrile butadiene rubber or EPDM ethylene propylene diene monomer rubber.

[0018] 1. This high-temperature resistant insulating rubber hose has an inner rubber layer made of HNBR hydrogenated nitrile butadiene synthetic rubber on the inside of the hose body. HNBR hydrogenated nitrile butadiene synthetic rubber is oil-resistant, water-resistant, high-temperature resistant, low-temperature resistant, low compression deformation, and high sealing performance, enabling the rubber hose to be used normally in a temperature range of -45℃ to +130℃.

[0019] 2. This high-temperature resistant insulated rubber hose has an anti-rollover structure installed on the outside of the rubber hose body. The detachable anti-rollover structure is installed on the part of the rubber hose body that is easily run over by vehicles, thereby providing support and protection for the rubber hose body, distributing the pressure of passing vehicles, and preventing the rubber hose from being subjected to excessive pressure during the material conveying process, which would affect the material flow, or preventing the rubber hose from being damaged after long-term rolling.

[0020] 3. The high-temperature resistant insulating rubber hose has hollow support plates on both sides of the collar. The sloping surface at the top can guide the vehicle's tires to lift and pass through the rubber hose, reducing the pressure on the rubber hose from the vehicle or other heavy objects. When the support plate is under pressure, it bends downward so that the arc surface at the bottom contacts the top of the base plate, transmitting the pressure on the support plate to the base plate and the ground through the arc surface, thus improving the overall stability of the anti-rollover structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 4 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0025] In the diagram: 1-Rubber hose body, 101-Inner rubber layer, 102-Reinforcing layer, 103-Outer rubber layer, 2-Ring, 3-Support plate, 4-Bottom plate, 5-Connecting strip, 6-Arc groove, 7-Suction cup groove. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0027] like Figures 1 to 4 As shown, a high-temperature resistant insulating rubber hose includes a rubber hose body 1, and an anti-crushing structure is provided on the outside of the rubber hose body 1.

[0028] like Figures 1 to 2 As shown, the anti-rollover structure includes several collars 2 sleeved on the outside of the rubber hose body 1, support plates 3 fixedly connected to both sides of the collars 2, and a base plate 4 fixedly connected to the bottom of the collars 2.

[0029] like Figures 1 to 2 As shown, the inner diameter of the collar 2 is matched with the diameter of the rubber hose body 1. The top of the collar 2 is open. The friction coefficient between the inner wall of the collar 2 and the rubber hose body 1 is greater than two. By setting the collar 2 on the outside of the rubber hose body 1, the anti-rollover structure is installed on the outside of the rubber hose body 1. The detachable anti-rollover structure is installed on the part of the rubber hose body 1 that is easily rolled over by vehicles, thereby providing support and protection for the rubber hose body 1, distributing the pressure of passing vehicles, and preventing the rubber hose from being subjected to large pressure during the material conveying process, which would affect the material flow, or preventing the rubber hose from being damaged after being rolled over for a long time.

[0030] Furthermore, the material of the collar 2 is set to alloy spring steel, so that it can deform to a certain extent with the rubber hose when subjected to pressure, so that it can stay in contact with the rubber hose when it is rolled over and prevent it from falling off. At the same time, it can recover in time after the vehicle passes over, so that it maintains a good elastic support effect. Limiting the friction coefficient between the collar 2 and the rubber hose can also increase the connection stability between the rubber hose and the anti-rolling structure.

[0031] like Figures 1 to 2As shown, the support plate 3 is hollow, with a sloping top and a rounded bottom. The support plate 3 is made of polyetherketone (PEK). By setting hollow support plates 3 on both sides of the collar 2, the sloping top can guide the vehicle's tires to lift through the rubber hose, reducing the pressure on the hose from the vehicle or other heavy objects. When the support plate 3 is under pressure, it bends downwards, causing the rounded bottom surface to contact the top of the base plate 4, transmitting the pressure to the base plate 4 and the ground through the rounded surface, thus improving the overall stability of the anti-rollover structure. The PEV support plate 3 has high heat and chemical resistance, maintaining excellent mechanical properties even under high temperature and high pressure conditions. When conveying high-temperature chemical materials through the rubber hose, the PEV support plate 3 maintains stable properties. Example

[0032] like Figures 1 to 2 As shown, connecting strips 5 are fixedly connected between the base plates 4. The material of the connecting strips 5 is HNBR hydrogenated nitrile butadiene synthetic rubber. The connecting strips 5 are set on both sides of the base plate 4. By setting the connecting strips 5 between the base plates 4, multiple dispersed rubber hose support structures are connected together, which facilitates the assembly with the rubber hose and provides sufficient protection for the rubber hose. The connecting strips 5 can also be cut as needed to cut a certain length of anti-rollover support structure according to the length of the rubber hose to be supported.

[0033] like Figures 1 to 4 As shown, an arc-shaped groove 6 is provided in the middle of the base plate 4, and suction cup grooves 7 are provided on both sides of the bottom of the base plate 4. The shape of the arc-shaped groove 6 is adapted to the top shape of the rubber hose body 1. By providing suction cup grooves 7 on both sides of the bottom of the base plate 4, it can be attached to the ground to improve the overall stability of the rubber hose and the anti-rollover support structure, and avoid the rubber hose from shaking or shifting when a vehicle passes by or is run over by a heavy object, thereby improving the stability of the rubber hose laying and preventing the rubber hose from shaking and causing the joint to not be sealed tightly.

[0034] An arc-shaped groove 6 is provided at the bottom of the base plate 4. When the rubber hose with anti-rollover support structure needs to be rolled up, the outer side of the rubber hose body 1 can be aligned with the arc-shaped groove 6 on the outer ring base plate 4 for matching, making the storage of the rubber hose more convenient and neat. Example

[0035] like Figure 4 As shown, the rubber hose body 1 includes an inner rubber layer 101 located on the inside, a reinforcing layer 102 located on the outside of the inner rubber layer 101, and an outer rubber layer 103 located on the outside of the reinforcing layer 102.

[0036] like Figure 4As shown, the inner rubber layer 101 is made of HNBR hydrogenated nitrile butadiene synthetic rubber, and the temperature resistance range of the inner rubber layer 101 is -45℃ to +130℃. By setting the inner rubber layer 101 made of HNBR hydrogenated nitrile butadiene synthetic rubber on the inside of the rubber hose body 1, the HNBR hydrogenated nitrile butadiene synthetic rubber has oil resistance, water resistance, high temperature resistance, low temperature resistance, low compression deformation, and high sealing performance, enabling the rubber hose to be used normally in the temperature range of -45℃ to +130℃.

[0037] like Figure 4 As shown, the reinforcing layer 102 is made of impregnated polyester yarn or impregnated aramid yarn. The impregnated polyester yarn has a specification of 4000D. The reinforcing layer 102 is composed of a fiber braided structure made of 1 to 3 layers of impregnated polyester yarn or impregnated aramid yarn. The tensile strength of the reinforcing layer 102 is not less than 280N. A nitrile rubber filler layer is provided between the layers of the reinforcing layer 102. Polyester material itself has good high temperature resistance. After impregnation, its high temperature resistance is further improved. This allows the hose reinforcing layer to maintain stable mechanical properties in high temperature environments and extend the service life of the hose. The nitrile rubber filler layer has good oil resistance, wear resistance and heat resistance. It is a commonly used material for manufacturing the filler layer of vulcanized hoses.

[0038] like Figure 4 As shown, the outer adhesive layer 103 is made of HNBR hydrogenated nitrile butadiene rubber or EPDM ethylene propylene diene monomer rubber. Example

[0039] High-temperature cyclic testing process for hose assembly: The hose assembly is pumped from room temperature → high-temperature pressure stabilization (heating furnace temperature stabilized at 120 +100 ℃, internal pressure of the assembly is 4.5 +20MPa, lasting ≥1h) → room temperature pumping → high-temperature pressure stabilization → room temperature pumping → high-temperature pressure stabilization → room temperature pumping. The hose assembly should show no abnormalities such as leakage, bulging, cracking, or delamination during the entire 6-cycle test process.

[0040] The hose assembly should be pumped at 6.0 MPa and held for 30 minutes. There should be no abnormalities such as leakage, bulging, cracking, or delamination.

[0041] Explosion test ≥20MPa

[0042] Hose bending radius ≤200mm

[0043] Total length change rate of the hose: not greater than 0.1%

[0044] The performance parameters of this high-temperature resistant insulating rubber hose are as follows:

[0045] .

Claims

1. A high-temperature-resistant, insulated rubber hose comprising a rubber hose body (1), characterized in that: The outer side of the rubber hose body (1) is provided with an anti-rolling structure; the anti-rolling structure comprises a plurality of sleeves (2) sleeved on the outer side of the rubber hose body (1), support plates (3) fixedly connected to the two sides of the sleeves (2), and bottom plates (4) fixedly connected to the bottom of the sleeves (2).

2. A high temperature resistant insulated rubber hose according to claim 1, characterized in that: The inner diameter of the sleeve (2) is matched with the diameter of the rubber hose body (1), the top of the sleeve (2) is in an open state, and the friction coefficient between the inner wall of the sleeve (2) and the rubber hose body (1) is greater than two.

3. The high temperature resistant insulated rubber hose according to claim 1, characterized in that: The support plate (3) is in a hollow state, the top of the support plate (3) is a slope, the bottom of the support plate (3) is a circular arc surface, and the material of the support plate (3) is polyether ketone.

4. The high temperature resistant insulated rubber hose according to claim 1, characterized in that: The bottom plates (4) are fixedly connected with connecting belts (5) therebetween, the material of the connecting belt (5) is HNBR hydrogenated butyronitrile synthetic rubber, and the connecting belt (5) is arranged on the two sides of the bottom plate (4).

5. The high temperature resistant insulated rubber hose according to claim 1, wherein: The middle part of the bottom plate (4) is provided with an arc-shaped groove (6), and the two sides of the bottom of the bottom plate (4) are provided with suction disc grooves (7); the shape of the arc-shaped groove (6) is matched with the shape of the top of the rubber hose body (1).

6. The high temperature resistant insulated rubber hose according to claim 1, wherein: The rubber hose body (1) comprises an inner rubber layer (101) on the inner side, a reinforcing layer (102) on the outer side of the inner rubber layer (101), and an outer rubber layer (103) on the outer side of the reinforcing layer (102).

7. A high temperature resistant insulated rubber hose according to claim 6, characterized in that: The material of the inner rubber layer (101) is HNBR hydrogenated butyronitrile synthetic rubber, and the temperature resistance range of the inner rubber layer (101) is -45℃ to +130℃.

8. A high temperature resistant insulated rubber hose according to claim 6, characterized in that: The material of the reinforcing layer (102) is impregnated polyester thread or impregnated aramid thread, the specification of the impregnated polyester thread is 4000D, the reinforcing layer (102) is composed of a fiber woven structure made of 1-3 layers of impregnated polyester thread or impregnated aramid thread, the breaking strength of the reinforcing layer (102) is not less than 280N, and a filling layer made of nitrile rubber is arranged between the layers of the reinforcing layer (102).

9. A high temperature resistant insulated rubber hose according to claim 6, characterized in that: The material of the outer rubber layer (103) is HNBR hydrogenated butyronitrile or EPDM ternary ethylene propylene rubber.

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