A modified PVC composite hose structure

Abstract

This utility model discloses a modified PVC composite hose structure, relating to the field of composite hose technology. It includes an inner layer, a reinforcing layer fixedly connected to the outer circumference of the inner layer, and an outer layer fixedly connected to the outer circumference of the reinforcing layer. A connecting reinforcement assembly is provided between the inner layer, outer layer, and reinforcing layer, and a connecting sealing assembly is provided on the inner side of the inner layer. In the technical solution provided by this utility model, by setting the connecting reinforcement assembly—specifically, by having a first convex ridge engage with a first groove in the inner layer and a second convex ridge engage with a second groove in the outer layer—it replaces simple bonding, significantly enhancing the connection force of the inner, reinforcing, and outer layers. This can resist interlayer tension caused by media pressure fluctuations, frequent bending, and temperature changes, preventing structural failure. Furthermore, the convex ridges and grooves are axially evenly distributed, ensuring balanced interlayer force. The reinforcing ring on the outer side of the outer layer corresponds to the convex ridge and groove positions, further reinforcing the overall structure, improving deformation resistance, and effectively extending the service life of the hose.

Description

Technical Field

[0001] This utility model relates to the field of composite hose technology, and in particular to a modified PVC composite hose structure. Background Technology

[0002] Modified PVC hoses are widely used in liquid transportation, pneumatic pipelines and other fields due to their advantages such as low cost, chemical corrosion resistance and easy processing.

[0003] However, most existing modified PVC hoses adopt a single-layer or simple double-layer structure, with the inner and outer layers only connected by simple adhesive. During long-term use, under the influence of medium pressure fluctuations, frequent bending, or changes in ambient temperature, the interlayer separation is prone to occur, leading to the failure of the overall hose structure and shortening its service life. Furthermore, when connecting the hose to the joint, the smooth inner wall makes it prone to water leakage. Therefore, improvements are needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a modified PVC composite hose structure. This addresses the problem that most modified PVC hoses in the prior art adopt a single-layer or simple double-layer structure, with the inner and outer layers only connected by simple adhesive. During long-term use, under the influence of medium pressure fluctuations, frequent bending, or changes in ambient temperature, the interlayer separation is prone to occur, leading to the failure of the overall hose structure and shortening its service life. Furthermore, the hose is prone to leakage when connecting to the joint due to the smooth inner wall.

[0005] In view of this, the present invention provides a modified PVC composite hose structure, including an inner layer, a reinforcing layer fixedly connected along the outer circumferential surface of the inner layer, and an outer layer fixedly connected along the outer circumferential surface of the reinforcing layer. A connecting reinforcing component is provided between the inner layer, the outer layer and the reinforcing layer, and a connecting sealing component is provided on the inner side of the inner layer.

[0006] The connection reinforcement component includes a plurality of first grooves, a plurality of second grooves, a plurality of first ridges, a plurality of second ridges, and a plurality of reinforcing rings. The plurality of first grooves and the plurality of second grooves are respectively formed on the outer side of the inner layer and the inner side of the outer layer. The plurality of first ridges and second ridges are respectively fixedly connected to the inner and outer sides of the reinforcement layer. The plurality of reinforcing rings are fixedly connected to the outer side of the outer layer.

[0007] Optionally, the first protruding ridge is embedded inside the first groove, and the second protruding ridge is embedded inside the second groove.

[0008] Optionally, a plurality of the first grooves and a plurality of the second grooves are axially and evenly distributed on the outer side of the inner layer and the inner side of the outer layer, respectively.

[0009] Optionally, a plurality of the first protruding ridges and a plurality of the second protruding ridges are axially and evenly distributed on the inner and outer sides of the reinforcing layer, respectively.

[0010] Optionally, a plurality of the reinforcing rings are axially and evenly distributed on the outer side of the outer layer, and the reinforcing rings are located on the outer side of the first groove, the second groove, the first ridge, and the second ridge.

[0011] Optionally, the connection sealing assembly includes a sealing layer and a plurality of sealing rings, wherein the sealing layer is fixedly connected to the inner side of the inner layer, and the plurality of sealing rings are fixedly connected to the inner side of the sealing layer.

[0012] Optionally, a plurality of the sealing rings are axially and evenly distributed on the inner side of the sealing layer.

[0013] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:

[0014] 1. This utility model discloses a modified PVC composite hose structure. By incorporating a connecting reinforcement component, specifically, a first protruding ridge engages with a first groove in the inner layer, and a second protruding ridge engages with a second groove in the outer layer, replacing simple bonding. This significantly enhances the connection strength of the inner, reinforcing, and outer layers, resisting interlayer tension caused by media pressure fluctuations, frequent bending, and temperature changes, thus preventing structural failure. Furthermore, the ridges and grooves are axially evenly distributed, ensuring balanced interlayer stress. The reinforcing ring on the outer side of the outer layer corresponds to the positions of the ridges and grooves, further reinforcing the overall structure, improving deformation resistance, and effectively extending the hose's service life.

[0015] 2. This utility model discloses a modified PVC composite hose structure. By incorporating a connection sealing component, specifically, the innermost sealing layer forms a basic seal, tightly adhering to the inner wall and the joint, initially preventing leakage; the axially evenly distributed sealing rings further enhance the contact sealing with the joint, forming multiple layers of protection and significantly reducing the risk of leakage caused by the smooth inner wall. This component does not affect media transport, improves connection reliability, and is suitable for scenarios such as liquid transport and pneumatic pipelines, ensuring stable operation.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural diagram of the reinforcing layer of this utility model;

[0020] Figure 3This is a schematic diagram of the outer structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection and sealing assembly structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Inner layer; 2. Outer layer; 3. Reinforcing layer; 401. First groove; 402. Second groove; 403. First ridge; 404. Second ridge; 405. Reinforcing ring; 501. Sealing layer; 502. Sealing ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0024] The following describes a modified PVC composite hose structure according to an embodiment of the present invention in detail with reference to the accompanying drawings. Example

[0025] For easier understanding, please refer to Figures 1 to 4 An embodiment of a modified PVC composite hose structure provided by this utility model includes an inner layer 1, a reinforcing layer 3 fixedly connected along the outer circumferential surface of the inner layer 1, and an outer layer 2 fixedly connected along the outer circumferential surface of the reinforcing layer 3. A connecting reinforcing component is provided between the inner layer 1, the outer layer 2 and the reinforcing layer 3, and a connecting sealing component is provided on the inner side of the inner layer 1.

[0026] The connecting reinforcement assembly includes several first grooves 401, several second grooves 402, several first protrusions 403, several second protrusions 404, and several reinforcing rings 405. The first grooves 401 and the second grooves 402 are respectively formed on the outer side of the inner layer 1 and the inner side of the outer layer 2. The first protrusions 403 and the second protrusions 404 are respectively fixedly connected to the inner and outer sides of the reinforcing layer 3. The reinforcing rings 405 are fixedly connected to the outer side of the outer layer 2. The first protrusions 403 are embedded in the first grooves 401. On the inner side of 01, the second protruding ridge 404 is embedded in the inner side of the second groove 402. Several first grooves 401 and several second grooves 402 are axially evenly distributed on the outer side of the inner layer 1 and the inner side of the outer layer 2, respectively. Several first protruding ridges 403 and several second protruding ridges 404 are axially evenly distributed on the inner and outer sides of the reinforcing layer 3, respectively. Several reinforcing rings 405 are axially evenly distributed on the outer side of the outer layer 2, and the reinforcing rings 405 are located on the outer side of the first groove 401, the second groove 402, the first protruding ridge 403 and the second protruding ridge 404.

[0027] It should be noted that both the inner layer 1 and the outer layer 2 are made of modified PVC material, which has excellent chemical corrosion resistance and aging resistance, and is suitable for liquid transportation, pneumatic pipelines and other scenarios. The reinforcing layer 3 is preferably a high-strength fiber braided layer or a mesh elastic material, which can further improve the overall bending and tensile strength of the hose. The first ridge 403 and the first groove 401, and the second ridge 404 and the second groove 402 adopt an interference fit design, which can significantly improve the interlayer interlocking force compared with the traditional bonding method, and effectively resist the interlayer tensile force caused by media pressure fluctuations and temperature changes. The reinforcing ring 405 is made of wear-resistant modified PVC material, and its positional correspondence with the ridges and grooves can specifically strengthen the structural stability of the interlayer connection parts, avoiding deformation or cracking caused by local stress concentration. Example

[0028] In some embodiments, such as Figure 1 , Figure 4 As shown, the connecting sealing assembly includes a sealing layer 501 and a plurality of sealing rings 502. The sealing layer 501 is fixedly connected to the inner side of the inner layer 1, and the plurality of sealing rings 502 are fixedly connected to the inner side of the sealing layer 501. The plurality of sealing rings 502 are axially and evenly distributed on the inner side of the sealing layer 501.

[0029] It should be noted that the sealing layer 501 uses a media-resistant sealant with good compatibility with the inner layer 1. It is tightly bonded to the inner side of the inner layer 1 through injection molding, which not only ensures the bonding strength but also avoids chemical reaction with the conveyed medium and failure. The sealing ring 502 is made of elastic rubber. Its axially uniform distribution design allows each ring to form an independent sealing contact point with the outer circumference of the joint when the hose is connected to the connector, forming a "multi-layer sealing protection". Even if a small gap appears in a local ring due to wear, the remaining rings can still maintain the sealing effect, completely solving the problem of easy water leakage when the traditional smooth inner wall is connected to the connector. Moreover, the protrusion height of the ring is moderate and will not have a significant impact on the flow rate of the conveyed medium.

[0030] Working Principle: When this modified PVC composite hose is in operation, it first relies on the three-layer composite structure of inner layer 1, reinforcing layer 3, and outer layer 2 to form a basic support: inner layer 1 directly contacts the conveyed medium, utilizing the corrosion resistance of modified PVC to protect the inside of the hose; reinforcing layer 3 bears the core role of resisting bending and tension, relieving structural stress on the hose during use. When the hose is subjected to the impact of medium pressure or frequent bending, the first protrusion 403 and the second protrusion 404 on the inner and outer sides of reinforcing layer 3 respectively engage with the first groove 401 of inner layer 1 and the second groove 402 of outer layer 2, forming a mechanical interlocking effect and preventing relative sliding between layers. To prevent interlayer separation, the reinforcing ring 405 on the outer side of the outer layer 2 further strengthens the interlayer connection, disperses local stress, and prevents the outer layer from cracking due to pressure concentration. When the hose is connected to the connector, the sealing layer 501 on the inner side of the inner layer 1 first fits tightly against the outer circumference of the connector, forming the first sealing barrier and blocking the medium from leaking from the gap between the inner layer 1 and the connector. At the same time, the axially distributed sealing rings 502 form a multi-elastic compression seal with the outer circumference of the connector, further improving the sealing reliability and ensuring that there is no risk of leakage during the hose's medium transport process. Ultimately, this achieves the effect of extending the service life of the hose and ensuring the stability of the transport.

[0031] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A modified PVC composite hose construction characterized by: It includes an inner layer (1), a reinforcing layer (3) fixedly connected to the outer peripheral surface of the inner layer (1), and an outer layer (2) fixedly connected to the outer peripheral surface of the reinforcing layer (3). A connecting reinforcing component is provided between the inner layer (1), the outer layer (2) and the reinforcing layer (3), and a connecting sealing component is provided on the inner side of the inner layer (1). The connection reinforcement component includes a plurality of first grooves (401), a plurality of second grooves (402), a plurality of first protrusions (403), a plurality of second protrusions (404), and a plurality of reinforcing rings (405). The plurality of first grooves (401) and the plurality of second grooves (402) are respectively opened on the outer side of the inner layer (1) and the inner side of the outer layer (2). The plurality of first protrusions (403) and second protrusions (404) are respectively fixedly connected to the inner and outer sides of the reinforcement layer (3). The plurality of reinforcing rings (405) are fixedly connected to the outer side of the outer layer (2).

2. The modified PVC composite hose structure according to claim 1, characterized in that: The first protruding ridge (403) is embedded inside the first groove (401), and the second protruding ridge (404) is embedded inside the second groove (402).

3. The modified PVC composite hose structure according to claim 1, characterized in that: Several first grooves (401) and several second grooves (402) are axially and evenly distributed on the outer side of the inner layer (1) and the inner side of the outer layer (2), respectively.

4. The modified PVC composite hose structure according to claim 1, characterized in that: Several first protruding ridges (403) and several second protruding ridges (404) are axially and evenly distributed on the inner and outer sides of the reinforcing layer (3).

5. The modified PVC composite hose structure according to claim 1, characterized in that: Several reinforcing rings (405) are axially evenly distributed on the outer side of the outer layer (2), and the reinforcing rings (405) are located on the outer side of the first groove (401), the second groove (402), the first ridge (403) and the second ridge (404).

6. The modified PVC composite hose structure according to claim 1, characterized in that: The connection sealing assembly includes a sealing layer (501) and a plurality of sealing rings (502). The sealing layer (501) is fixedly connected to the inner side of the inner layer (1), and the plurality of sealing rings (502) are fixedly connected to the inner side of the sealing layer (501).

7. The modified PVC composite hose structure according to claim 6, characterized in that: Several of the sealing rings (502) are axially and evenly distributed on the inner side of the sealing layer (501).

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