A high pressure oil pipe for a hydraulic system of a flexible tyre mold

Abstract

The utility model provides a high pressure oil pipe for hydraulic system in ligature formula tire mould, including flexible high pressure pipe, pipeline clamp, top hard pipe, connecting port and protective outer armor, wherein: top hard pipe is inserted in both ends of flexible high pressure pipe, and pipeline clamp fixed mounting is in the junction of flexible high pressure pipe and top hard pipe, this connecting port fixed mounting is in one end of top hard pipe, protective outer armor fixed mounting is outside flexible high pressure pipe, the utility model discloses flexible high pressure pipe and the setting of protective outer armor, and the pressure -bearing capacity is strong, can effectively resist the damage of external force.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure oil pipe technology, and in particular to a high-pressure oil pipe used in a hydraulic system for a flexible tire mold. Background Technology

[0002] The movable tire mold is a key piece of equipment in radial tire production. It uses a complex internal hydraulic system to drive multiple sector blocks in precise opening and closing movements. In this system, high-pressure oil pipes act as the "arteries" connecting the hydraulic pump station and the actuator cylinders, responsible for transmitting high-pressure hydraulic oil. Their performance directly affects the reliability of the mold's operation, production safety, and efficiency. However, existing high-pressure oil pipes still suffer from weak pressure-bearing capacity and cannot effectively resist damage from external forces.

[0003] Therefore, it is essential to invent a high-pressure oil pipe for a hydraulic system for movable tire molds. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a high-pressure oil pipe for a hydraulic system of a flexible tire mold, solving the problem that existing high-pressure oil pipes still have weak pressure-bearing capacity and cannot effectively resist damage from external forces. A high-pressure oil pipe for a hydraulic system of a flexible tire mold includes a flexible high-pressure pipe, a pipe clamp, a top rigid pipe, a connector, and a protective outer armor. The top rigid pipe is inserted at both ends of the flexible high-pressure pipe, and the pipe clamp is fixedly installed at the connection between the flexible high-pressure pipe and the top rigid pipe. The connector is fixedly installed at one end of the top rigid pipe. The protective outer armor is fixedly installed on the outside of the flexible high-pressure pipe.

[0005] The flexible high-pressure pipe includes a supporting pipe, a reinforcing frame, an inner lining, and a protective outer layer. The reinforcing frame is fixedly installed inside the supporting pipe, and the inner lining is fixedly installed on the inner wall of the supporting pipe. The protective outer layer is fixedly installed on the outer wall of the supporting pipe.

[0006] The protective outer armor includes a buffer band clamp, a reinforcing armor layer clamp, and a fixing sleeve clamp. The reinforcing armor layer clamp is bonded and fixed to the outside of the buffer band clamp. The buffer band clamp and the reinforcing armor layer clamp are wrapped around the outside of the flexible high-pressure pipe. The buffer band clamp and the reinforcing armor layer clamp are fixed to the outside of the flexible high-pressure pipe by the fixing sleeve.

[0007] The internal support pipe of the flexible high-pressure pipe is made of nitrile rubber, and the reinforcing skeleton is made of a spiral steel metal skeleton. The inner lining is made of a layer of neoprene rubber. The outer protective layer is made of a layer of high-toughness aramid fiber. The flexible high-pressure pipe as a whole can be bent.

[0008] The buffer band and reinforcing armor inside the protective outer armor are a single strip structure, with the buffer band using a layer of rubber and the reinforcing armor using a layer of steel. The buffer band and reinforcing armor are wrapped around the flexible high-pressure pipe with gaps between them.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The flexible high-pressure pipe of this invention can achieve flexible pipe laying and connection in complex spaces by utilizing its own flexibility; at the same time, its internal spiral steel reinforcing skeleton provides the key pressure resistance to withstand the high pressure of the system, while the inner lining layer made of neoprene rubber and nitrile rubber and the supporting pipe together form a sealed and oil-resistant oil delivery channel, thus integrating the three key functions of flexible connection, high pressure resistance and sealed oil delivery into one.

[0010] The protective outer armor of this invention provides crucial external mechanical protection for the core flexible high-pressure pipe through a wound composite layer consisting of a buffer strip and a reinforcing armor layer. Specifically, the outer steel reinforcing armor layer is responsible for resisting punctures from sharp objects, severe friction, compression, and impacts from the outside; while the inner rubber buffer strip acts as a buffer and shock absorber between the reinforcing armor layer and the protective outer layer of the flexible high-pressure pipe, dispersing local stress. Furthermore, the buffer strip and the reinforcing armor layer are wound with gaps and secured by a fixing clip. This design provides comprehensive protection without completely sacrificing the inherent flexibility of the flexible high-pressure pipe, thus achieving a key balance between mechanical protection and overall flexibility. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the flexible high-pressure pipe of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the protective outer armor of this utility model.

[0014] In the picture: Flexible high-pressure pipe 1, supporting pipe 11, reinforcing frame 12, inner lining layer 13, protective outer layer 14, pipe clamp 2, top rigid pipe 3, connection port 4, protective outer armor 5, buffer strip 51, reinforcing armor layer 52, fixing sleeve 53. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] As attached Figure 1 To be continued Figure 3 As shown.

[0017] This utility model provides a high-pressure oil pipe for a hydraulic system of a flexible tire mold, comprising a flexible high-pressure pipe 1, a pipe clamp 2, a top rigid pipe 3, a connecting port 4, and a protective outer armor 5, wherein: the top rigid pipe 3 is inserted at both ends of the flexible high-pressure pipe 1, and the pipe clamp 2 is fixedly installed at the connection between the flexible high-pressure pipe 1 and the top rigid pipe 3, and the connecting port 4 is fixedly installed at one end of the top rigid pipe 3; the protective outer armor 5 is fixedly installed on the outside of the flexible high-pressure pipe 1.

[0018] The flexible high-pressure pipe 1 includes a supporting pipe 11, a reinforcing frame 12, an inner lining layer 13, and a protective outer layer 14. The reinforcing frame 12 is fixedly installed inside the supporting pipe 11, and the inner lining layer 13 is fixedly installed on the inner wall of the supporting pipe 11. The protective outer layer 14 is fixedly installed on the outer wall of the supporting pipe 11.

[0019] The protective outer armor 5 includes a buffer strip 51, a reinforcing armor layer 52, and a fixing sleeve 53. The reinforcing armor layer 52 is bonded and fixed to the outside of the buffer strip 51. The buffer strip 51 and the reinforcing armor layer 52 are wrapped around the outside of the flexible high-pressure pipe 1. The buffer strip 51 and the reinforcing armor layer 52 are held and fixed to the outside of the flexible high-pressure pipe 1 by the fixing sleeve 53.

[0020] The internal support pipe 11 of the flexible high-pressure pipe 1 is made of nitrile rubber, and the reinforcing skeleton 12 is made of a spiral steel metal skeleton. The inner lining layer 13 is made of a layer of neoprene rubber. The protective outer layer 14 is made of a layer of high-toughness aramid fiber. The flexible high-pressure pipe 1 can be bent as a whole.

[0021] The buffer strip 51 and the reinforcing armor layer 52 inside the protective outer armor 5 are a single strip structure. The buffer strip 51 is made of a rubber strip, and the reinforcing armor layer 52 is made of a steel strip. The buffer strip 51 and the reinforcing armor layer 52 are wrapped around the flexible high-pressure pipe 1 with gaps.

[0022] The core working principle of this high-pressure oil pipe is to safely transmit hydraulic power as a sealed pressure-bearing channel that combines rigidity and flexibility. High-pressure oil enters the oil delivery channel composed of the flexible high-pressure pipe 1 through the connection port 4 and the top rigid pipe 3. Its inner lining layer 13 and supporting pipe 11 are responsible for sealing and oil resistance, while the internal spiral steel reinforcing skeleton 12 is the core pressure-bearing component, which can resist the high pressure of the oil and prevent the pipe body from expanding. At the same time, the flexibility of the high-pressure pipe 1 allows it to flexibly adapt to the displacement and vibration caused by the mold movement.

[0023] To ensure the reliability of the aforementioned functions in harsh environments, the protective outer armor 5 provides crucial external mechanical protection. Its outer steel reinforced armor layer 52 directly resists external friction, compression, and impact, while the inner rubber buffer strip 51 provides cushioning and shock absorption. This protective layer is secured by a fixing sleeve 53 and wound with gaps, thus giving the entire pipe excellent durability without sacrificing its necessary flexibility, ultimately ensuring the continuous, safe, and reliable power transmission of the hydraulic system.

[0024] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high-pressure oil pipe for use in a hydraulic system for a movable tire mold, characterized in that: It includes a flexible high-pressure pipe (1), a pipe clamp (2), a top rigid pipe (3), a connection port (4), and a protective outer armor (5), wherein: the top rigid pipe (3) is inserted at both ends of the flexible high-pressure pipe (1), and the pipe clamp (2) is fixedly installed at the connection between the flexible high-pressure pipe (1) and the top rigid pipe (3), and the connection port (4) is fixedly installed at one end of the top rigid pipe (3); the protective outer armor (5) is fixedly installed on the outside of the flexible high-pressure pipe (1).

2. The high-pressure oil pipe for a hydraulic system of a movable tire mold as described in claim 1, characterized in that: The flexible high-pressure pipe (1) includes a supporting pipe (11), a reinforcing frame (12), an inner lining (13), and a protective outer layer (14). The reinforcing frame (12) is fixedly installed inside the supporting pipe (11), and the inner lining (13) is fixedly installed on the inner wall of the supporting pipe (11). The protective outer layer (14) is fixedly installed on the outer wall of the supporting pipe (11).

3. The high-pressure oil pipe for a hydraulic system of a movable tire mold as described in claim 1, characterized in that: The protective outer armor (5) includes a buffer strip (51), a reinforcing armor layer (52), and a fixing sleeve (53). The reinforcing armor layer (52) is bonded and fixed to the outside of the buffer strip (51). The buffer strip (51) and the reinforcing armor layer (52) are wrapped around the outside of the flexible high-pressure pipe (1). The buffer strip (51) and the reinforcing armor layer (52) are held and fixed to the outside of the flexible high-pressure pipe (1) by the fixing sleeve (53).

4. A high-pressure oil pipe for a hydraulic system of a movable tire mold as described in claim 2, characterized in that: The internal support pipe (11) of the flexible high-pressure pipe (1) is made of nitrile rubber, and the reinforcing skeleton (12) is made of a spiral steel metal skeleton. The inner lining (13) is made of a layer of neoprene rubber. The outer protective layer (14) is made of a layer of high-toughness aramid fiber. The flexible high-pressure pipe (1) can be bent as a whole.

5. A high-pressure oil pipe for a hydraulic system for a movable tire mold as described in claim 3, characterized in that: The buffer strip (51) and the reinforcing armor layer (52) inside the protective outer armor (5) are a strip structure as a whole. The buffer strip (51) is made of a rubber strip and the reinforcing armor layer (52) is made of a steel strip. The buffer strip (51) and the reinforcing armor layer (52) are wrapped around the flexible high-pressure pipe (1) with gaps.

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