A rubber composite hose

Abstract

The utility model relates to a pipe material technical field, concretely relates to a rubber composite hose. Including the inner tube, the rubber tube is fixed with the rubber pipe of inside tube outside set, the rubber pipe outside is provided with the reinforcing layer, the reinforcing layer outside injection moulded has the outer tube, its characterized in that, the pipe wall of rubber tube is opened with multiple through -holes in the circumference distribution, the rubber tube inner wall between the adjacent two through -holes all is opened with the arc -shaped groove, is provided with rubber strip in the arc -shaped groove, rubber strip is fixed in the inner tube outside, and the clearance is provided between rubber strip and arc -shaped groove, and the inner hole is opened in rubber strip, and the hardness of rubber strip is greater than the hardness of rubber pipe. The utility model sets up the rubber pipe between the inner tube and the outer tube, and the utility model has the shock attenuation performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe material technical field, concretely relates to a rubber composite hose. BACKGROUND

[0002] The rubber hose is used to transport gas, liquid, slurry or granular material, and can be widely applied in petroleum, chemical industry, ship, tank truck, food, medicine and other industries, and is almost applied in all industrial production and circulation fields. The existing rubber hose is usually composed of an inner rubber layer, an outer rubber layer and an intermediate skeleton layer, the material of the skeleton layer can be synthetic fiber, carbon fiber or steel wire, etc. The inner rubber layer of the rubber hose directly bears the wear and corrosion of the conveying medium; the outer rubber layer protects the inner body of the rubber hose from damage and corrosion by the external environment; the skeleton layer is the pressure-bearing layer of the rubber hose, which gives the pipe body strength and rigidity.

[0003] The patent file with publication number CN215568586U discloses a shock isolation rubber hose, which comprises an inner rubber layer, an intermediate skeleton layer and an outer rubber layer, and a rubber pad is arranged between the outer rubber layer and the intermediate skeleton layer. The rubber pad comprises a rubber shock-absorbing main body part, the cross section of the rubber shock-absorbing main body part is V-shaped, a first connecting piece is arranged at one end of the rubber shock-absorbing main body part, and a second connecting piece is arranged at the other end of the rubber shock-absorbing main body part. The first connecting piece is connected with the outer rubber layer, and the second connecting piece is connected with the intermediate skeleton layer. By arranging the rubber pad with a V-shaped cross section between the outer rubber layer and the intermediate skeleton layer, the rubber hose as a whole has stable elastic reset function, and the pressure isolation effect is good. When subjected to extrusion impact and other destructive forces, it is not easy to be damaged, ensuring the safety of use. The rubber hose not only has good shock isolation effect, but also has high overall strength, corrosion resistance, aging resistance and other excellent properties. The shock isolation rubber hose is protected by the multiple rubber pads with V-shaped cross sections, which increases the manufacturing cost.

[0004] The patent file with the publication number CN220354699U discloses a shock isolation rubber hose, which comprises a hose, shock absorption silica gel and pipeline sound insulation cotton arranged in sequence from inside to outside, wherein the inner wall of the shock absorption silica gel is provided with circumferential array grooves, shock absorption blocks are movably installed in the grooves, the top end of the shock absorption block is fixedly connected to the shock absorption silica gel, and the bottom end of the shock absorption block is fixedly connected to the hose. The shock absorption silica gel provided outside the hose provides shock absorption effect for the hose, the grooves provided on the shock absorption silica gel provide sound insulation effect for the hose while increasing the shock absorption effect, the top end of the shock absorption block installed in the groove is connected to the shock absorption silica gel, and the bottom end of the shock absorption block is connected to the hose, so that the vibration generated outside is buffered by the shock absorption block, the vibration does not affect the hose, the service life of the hose is increased, and the pipeline sound insulation cotton provided outside the shock absorption silica gel absorbs and insulates the sound emitted in the hose, so that the noise generated in the hose is prevented from being transmitted, and the hose has good sound insulation effect. However, when the shock absorption silica gel is impacted, it will deform into the groove, and the reduced space in the groove will affect the deformation of the shock absorption block, and the shock absorption silica gel and the shock absorption block cannot effectively jointly absorb the shock of the hose after being impacted. Utility model content

[0005] The main purpose of the utility model is to provide a rubber composite hose which has good shock absorption effect, strong impact resistance, is convenient to manufacture and has stable connection between the outer tube and the shock absorption silica gel tube.

[0006] In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

[0007] A rubber composite hose, which comprises an inner tube, a rubber tube fixedly sleeved outside the inner tube, a reinforcing layer arranged outside the rubber tube, an outer tube injection molded outside the reinforcing layer, a plurality of through holes circumferentially and uniformly arranged on the tube wall of the rubber tube, the through holes being blocked at both ends, an arc-shaped groove arranged on the inner wall of the rubber tube between adjacent two through holes, a rubber strip arranged in the arc-shaped groove, the rubber strip being fixed outside the inner tube, a gap being arranged between the rubber strip and the arc-shaped groove, an inner hole being arranged in the rubber strip, and the hardness of the rubber strip being greater than the hardness of the rubber tube.

[0008] Specifically, the axial directions of the through holes, the inner hole and the inner tube are parallel.

[0009] Specifically, the inner tube is a polyethylene hose.

[0010] Specifically, the reinforcing layer is formed by winding and curing a winding fiber.

[0011] Specifically, the winding fiber is one of high-strength glass fiber, polyester fiber or carbon fiber.

[0012] Specifically, the outer tube is a polyethylene hose.

[0013] Specific, the rubber tube outside is uniformly processed with a plurality of convex rings along the length direction thereof.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] 1、 the utility model discloses a rubber pipe is arranged between inner tube and outer tube, and the utility model discloses have the shock attenuation performance.

[0016] 2、 through setting up a plurality of through -holes on the rubber pipe wall, the gap between rubber strip and arc -shaped groove is set up, and the inner hole is set up in the rubber strip, when the outer tube is extruded, the through -hole and the inner hole can provide the deformation space for the deformation of rubber pipe and rubber strip, can effectively buffer the impact force that the outer tube received.

[0017] 3、 the hardness of rubber strip is greater than the hardness of rubber pipe, and when the extrusion force that the outer tube received is small, the deformation of rubber pipe can buffer the extrusion force that the outer tube received, when the extrusion force that the outer tube received is big, rubber strip occurs deformation and participates in buffering the extrusion force that the outer tube received, therefore the extrusion resistance of the utility model is strong.

[0018] 4、 through setting up the rubber strip of the inner hole of being opened in increase the extrusion resistance of the utility model, can reduce production cost.

[0019] 5、 through setting up a plurality of convex rings on the rubber tube outside, after setting up the reinforcing layer on the rubber tube outside, the flange corresponding with the convex ring will appear on the reinforcing layer, when the outer tube is injection molded on the reinforcing layer outside, the ring groove corresponding with the flange will appear on the inner side of the outer tube, and the flange is located in the ring groove, therefore, can increase the connecting strength of the outer tube and the reinforcing layer. DETAILED DESCRIPTION

[0020] Figure 1 It is the schematic view of the utility model.

[0021] Figure 2 It is the sectional view of the utility model.

[0022] Figure 3 It is the schematic view of the reinforcing layer of the utility model.

[0023] Figure 4 It is the schematic view of the rubber tube of the utility model.

[0024] The names of parts in the drawing are: 1, inner tube, 2, rubber tube, 3, reinforcing layer, 4, outer tube, 5, through -hole, 6, arc -shaped groove, 7, rubber strip, 8, inner hole, 9, convex ring. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Embodiment one: refer to Figures 1-3 As shown in the figure, a rubber composite hose, comprising an inner tube 1, the inner tube 1 is a polyethylene hose. The inner tube 1 mainly plays the role of wear resistance, corrosion resistance and leakage resistance.

[0027] The rubber tube 2 is fixedly sleeved on the outer side of the inner tube 1.

[0028] The rubber tube 2 is provided with a reinforcing layer 3 on the outer side, and the reinforcing layer 3 is formed by winding and curing the winding fiber. The winding fiber is one of high-strength glass fiber, polyester fiber or carbon fiber. By setting the reinforcing layer 3, the axial and circumferential strength of the present utility model can be improved, and the role of high pressure resistance can be played.

[0029] The outer tube 4 is injection molded on the outer side of the reinforcing layer 3, and the outer tube 4 is a polyethylene hose. The outer tube 4 plays the role of anti-aging and anti-scratch.

[0030] By setting the rubber tube 2 between the inner tube 1 and the outer tube 4, the present rubber composite hose has the shock absorption performance.

[0031] A plurality of through holes 5 are uniformly arranged on the pipe wall of the rubber tube 2, and the through holes 5 are sealed at both ends.

[0032] Arc-shaped grooves 6 are arranged on the inner wall of the rubber tube 2 between the adjacent two through holes 5, rubber strips 7 are arranged in the arc-shaped grooves 6, the rubber strips 7 are fixed on the outer side of the inner tube 1, gaps are arranged between the rubber strips 7 and the arc-shaped grooves 6, inner holes 8 are arranged in the rubber strips 7, and the hardness of the rubber strips 7 is greater than the hardness of the rubber tube 2.

[0033] The axial direction of the through hole 5, the inner hole 8 and the inner tube 1 is parallel.

[0034] By arranging a plurality of through holes 5 on the pipe wall of the rubber tube 2, gaps are arranged between the rubber strips 7 and the arc-shaped grooves 6, and inner holes 8 are arranged in the rubber strips 7, when the outer tube 4 is extruded, the through holes 5 and the inner holes 8 can provide deformation space for the deformation of the rubber tube 2 and the rubber strip 7, and can effectively buffer the impact force received by the outer tube 4.

[0035] Since the through holes 5 are sealed at both ends, when the outer tube 4 is extruded to cause the deformation of the rubber tube 2, the gas in the through hole 5 is extruded, the pressure in the through hole 5 is increased, and when the extrusion force applied to the outer tube 4 disappears, the extruded gas in the through hole 5 can be beneficial to the restoration of the rubber tube 2 and the outer tube 4.

[0036] The hardness of the rubber strip 7 is greater than that of the rubber tube 2, and when the extrusion force on the outer tube 4 is small, the deformation of the rubber tube 2 can buffer the extrusion force on the outer tube 4. When the extrusion force on the outer tube 4 is large, the rubber strip 7 deforms and participates in buffering the extrusion force on the outer tube 4, so that the anti-extrusion capacity of the rubber composite tube is strong.

[0037] When the rubber composite tube is produced, a plurality of rubber strips 7 are fixed outside the inner tube 1, then the fixed rubber tube 2 is sleeved outside the inner tube 1, and the rubber strip 7 is located in the groove of the rubber tube 2. After the reinforcing layer 3 is formed by winding the reinforcing fiber outside the rubber tube 2 and curing, the outer tube 4 is injection molded outside the reinforcing layer 3.

[0038] Example two: based on example one, referring to Figure 4 As shown, a plurality of convex rings 9 are uniformly processed on the outer side of the rubber tube 2 along the length direction.

[0039] By arranging a plurality of convex rings 9 on the outer side of the rubber tube 2, after the reinforcing layer 3 is arranged on the outer side of the rubber tube 2, the reinforcing layer 3 will have a flange corresponding to the convex ring 9. When the outer tube 4 is injection molded outside the reinforcing layer 3, the inner side of the outer tube 4 will have a ring groove corresponding to the flange, and the flange is located in the ring groove, so that the connection strength between the outer tube 4 and the reinforcing layer 3 can be increased.

[0040] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rubber composite hose comprising an inner tube (1), a rubber tube (2) fixedly sleeved outside the inner tube (1), a reinforcing layer (3) arranged outside the rubber tube (2), and an outer tube (4) injection molded outside the reinforcing layer (3), characterized in that, A plurality of through holes (5) are evenly distributed on the wall of the rubber tube (2), the through holes (5) are sealed at both ends, the inner wall of the rubber tube (2) between the adjacent two through holes (5) is provided with an arc-shaped groove (6), a rubber strip (7) is arranged in the arc-shaped groove (6), the rubber strip (7) is fixed on the outer side of the inner tube (1), a gap is arranged between the rubber strip (7) and the arc-shaped groove (6), an inner hole (8) is arranged in the rubber strip (7), and the hardness of the rubber strip (7) is greater than the hardness of the rubber tube (2).

2. The rubber composite hose according to claim 1, wherein The axial direction of the through hole (5), the inner hole (8) and the inner tube (1) are parallel.

3. The rubber composite hose according to claim 1, wherein The inner tube (1) is a polyethylene hose.

4. The rubber composite hose according to claim 1, wherein The reinforcing layer (3) is formed by winding and curing the winding fiber.

5. The rubber composite hose according to claim 4, wherein The winding fiber is one of high-strength glass fiber, polyester fiber or carbon fiber.

6. The rubber composite hose according to claim 1, wherein The outer tube (4) is a polyethylene hose.

7. The rubber composite hose according to claim 1, wherein A plurality of convex rings (9) are evenly distributed on the outer side of the rubber tube (2) along the length direction.

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