A steel skeleton polyethylene plastic composite pipe joint device convenient to connect

Abstract

This utility model relates to the field of composite pipe joint technology and discloses a steel-reinforced polyethylene plastic composite pipe joint device that facilitates connection. It includes a connection positioning component, with a first positioning interface fixedly connected to the back of the connection positioning component. The first positioning interface is also provided on the back of the first positioning interface. After the first and second positioning interfaces are installed and positioned, the second spring's own elasticity drives the second limiting ring plate and the second sealing groove to move towards the opening of the second telescopic groove. This gives the second sealing ring the potential energy to move inwards towards the first sealing groove, effectively ensuring a seal between the first and second positioning interfaces. Furthermore, the compression of the second spring between the first sealing ring and the second sealing groove gives the second sealing groove the potential energy to move towards the first sealing ring, ensuring an effective seal between the two composite pipes.

Description

Technical Field

[0001] This utility model relates to the field of composite pipe joint technology, and more specifically to a steel-reinforced polyethylene plastic composite pipe joint device that is easy to connect. Background Technology

[0002] Traditional pipe fittings are mostly made of a single metal or plastic material, which suffers from problems such as easy corrosion, insufficient sealing, and limited pressure resistance. With the increasing demands on pipeline systems in fields such as petroleum, chemical, and aerospace, single-material fittings are insufficient to meet the needs of complex operating conditions. For example, while metal fittings have high strength, they have poor corrosion resistance; plastic fittings are corrosion-resistant but prone to aging and have insufficient mechanical properties. Furthermore, the connection of multi-material pipelines (such as metal-composite composite hybrid pipelines) requires solving the compatibility and sealing challenges between dissimilar materials.

[0003] Early improvements included protective coatings, rubber seals, or threaded reinforcement, but risks of loosening at the joints and leakage due to mismatched coefficients of thermal expansion remained. In recent years, composite pipe fittings have significantly improved performance by combining the mechanical strength of metals with the corrosion resistance of non-metals (such as carbon steel-PTFE composite structures) or by employing multi-layer designs (internal anti-corrosion lining, intermediate reinforcing layer, and outer protective layer). However, existing technologies still face challenges such as complex processing, high costs, and insufficient durability under dynamic loads, necessitating structural optimization and the application of new materials.

[0004] Insufficient technology: Existing composite pipe fittings require gaskets at the mating points of the two fittings to prevent liquid leakage. However, the gaskets can become damaged over time and fail to guarantee a seal. Therefore, users need to replace the gaskets regularly to ensure a tight seal, which is inconvenient for users. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a steel-reinforced polyethylene plastic composite pipe joint device that is easy to connect, so as to solve the problems existing in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel-reinforced polyethylene plastic composite pipe joint device for easy connection, comprising a connection positioning component, wherein a first positioning interface is fixedly connected to the back of the connection positioning component, and a first positioning interface is provided on the back of the first positioning interface, wherein the first positioning interface and the second positioning interface are positioned and connected by a connection positioning bolt assembly, wherein the connection positioning component comprises a connection positioning tube, wherein a sealing block is fixedly connected to the back of the connection positioning tube and to the inner side near the connection positioning tube.

[0007] Furthermore, the first positioning interface includes a first positioning ring, a first sealing ring plate is fixedly connected to the outer side of the first positioning ring, a first compression positioning ring plate is fixedly connected to the outer side of the first sealing ring plate, a first bolt positioning hole is provided on the back of the first compression positioning ring plate, a first sealing groove is provided on the outer side of the first sealing ring plate near the second positioning interface, a first telescopic groove is provided on the inner side of the first positioning ring near the second positioning interface, a first spring is fixedly connected to the inner side of the first telescopic groove, a first limiting ring plate is fixedly connected to the side of the first spring away from the first sealing ring plate, and a first sealing ring is fixedly connected to the side of the first limiting ring plate away from the first spring.

[0008] Furthermore, the second positioning interface includes a second positioning ring, a second sealing ring plate is fixedly connected to the outer side of the second positioning ring, a second compression positioning ring plate is fixedly connected to the outer side of the second sealing ring plate, a second bolt positioning hole is provided on the back of the second compression positioning ring plate, a second sealing groove is provided on the inner side of the side of the second compression positioning ring plate near the second positioning interface, a second telescopic groove is provided on the outer side of the side of the second positioning ring near the second positioning interface, a second spring is fixedly connected to the inner side of the second telescopic groove, a second limiting ring plate is fixedly connected to the side of the second spring away from the second sealing ring plate, and a second sealing ring is fixedly connected to the side of the second limiting ring plate away from the second limiting ring plate.

[0009] Furthermore, there is a clearance fit between the inner diameter of the second sealing ring plate and the outer diameter of the second positioning ring, and a clearance fit between the inner diameter of the first sealing ring plate and the outer diameter of the first positioning ring.

[0010] Furthermore, there is a clearance fit between the cross-sectional dimensions of the inner side of the second expansion groove and the cross-sectional dimensions of the second limiting ring plate, and a clearance fit between the cross-sectional dimensions of the opening of the second expansion groove and the cross-sectional dimensions of the second sealing ring.

[0011] Furthermore, there is a clearance fit between the cross-sectional dimensions of the inner side of the first expansion groove and the cross-sectional dimensions of the first limiting ring plate, and there is a clearance fit between the cross-sectional dimensions of the opening of the first expansion groove and the cross-sectional dimensions of the first sealing ring.

[0012] Furthermore, the cross-sectional dimensions of the first sealing ring and the cross-sectional dimensions of the second sealing groove are mutually compatible, and the cross-sectional dimensions of the second sealing ring and the first sealing groove are mutually compatible.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. In the installation and positioning process of this utility model, the connecting positioning component that connects the first positioning interface and the second positioning interface is connected and positioned with the composite pipe. Then, the first sealing ring is aligned with the position of the second sealing groove, and the second sealing ring is aligned with the position of the first sealing groove. Positioning is then achieved by compression. Finally, the first positioning interface and the second positioning interface are positioned by the connecting positioning bolt assembly, which ensures the effective connection and positioning of the two composite pipes. Moreover, the user does not need to install gaskets, thus facilitating the user's installation and positioning.

[0015] 2. In this utility model, after the first and second positioning interfaces are installed and positioned, the second spring's own elasticity drives the second limiting ring plate and the second sealing groove to move towards the opening of the second telescopic groove. This gives the second sealing ring the potential energy to move towards the inside of the first sealing groove, thus ensuring the seal between the first and second positioning interfaces. Then, through the compression of the second spring between the first sealing ring and the second sealing groove, the second sealing groove has the potential energy to move towards the first sealing ring, ensuring an effective seal between the two composite pipes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection and positioning component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the first positioning interface structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the second positioning interface structure of this utility model.

[0020] The attached figures are labeled as follows: 1. Connecting positioning assembly; 101. Connecting positioning tube; 102. Tapered tube; 103. Sealing block; 2. First positioning interface; 201. First positioning ring; 202. First sealing ring plate; 203. First compression positioning ring plate; 204. First bolt positioning hole; 205. First sealing groove; 206. First telescopic groove; 207. First spring; 208. First limiting ring plate; 209. First sealing ring; 3. Second positioning interface; 301. Second positioning ring; 302. Second sealing ring plate; 303. Second compression positioning ring plate; 304. Second bolt positioning hole; 305. Second telescopic groove; 306. Second spring; 307. Second limiting ring plate; 308. Second sealing ring; 309. Second sealing groove; 4. Connecting positioning bolt assembly. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The steel-framed polyethylene plastic composite pipe joint device that facilitates connection involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1 to 4 This utility model provides a steel-framed polyethylene plastic composite pipe joint device that is easy to connect, including a connecting positioning component 1. A first positioning interface 2 is fixedly connected to the back of the connecting positioning component 1. A first positioning interface 2 is provided on the back of the first positioning interface 2. The first positioning interface 2 and the second positioning interface 3 are positioned and connected by a connecting positioning bolt assembly 4. The connecting positioning component 1 includes a connecting positioning tube 101. A 102 is fixedly connected to the back of the connecting positioning tube 101. A sealing block 103 is fixedly connected to the inner side of the 102 near the connecting positioning tube 101.

[0023] In a preferred embodiment, the first positioning interface 2 includes a first positioning ring 201. A first sealing ring plate 202 is fixedly connected to the outer side of the first positioning ring 201. A first compression positioning ring plate 203 is fixedly connected to the outer side of the first sealing ring plate 202. A first bolt positioning hole 204 is provided on the back of the first compression positioning ring plate 203. A first sealing groove 205 is provided on the outer side of the first sealing ring plate 202 near the second positioning interface 3. A first telescopic groove 206 is provided on the inner side of the first positioning ring 201 near the second positioning interface 3. A first spring 207 is fixedly connected to the inner side of the first telescopic groove 206. A first spring 207 is fixedly connected to the side of the first spring 207 away from the first sealing ring plate 202. The first limiting ring plate 208 has a first sealing ring 209 fixedly connected to the side of the first limiting ring plate 208 away from the first spring 207. During the installation and positioning process, the connecting positioning assembly 1, which connects the first positioning interface 2 and the second positioning interface 3, is connected and positioned with the composite tube. Then, the first sealing ring 209 is aligned with the position of the second sealing groove 309, and the second sealing ring 308 is aligned with the position of the first sealing groove 205. Positioning is then achieved by compression. Finally, the first positioning interface 2 and the second positioning interface 3 are positioned by the connecting positioning bolt assembly 4. This ensures the effective connection and positioning of the two composite tubes, and eliminates the need for the user to install gaskets, thus facilitating the user's installation and positioning.

[0024] In a preferred embodiment, the second positioning interface 3 includes a second positioning ring 301. A second sealing ring plate 302 is fixedly connected to the outer side of the second positioning ring 301. A second compression positioning ring plate 303 is fixedly connected to the outer side of the second sealing ring plate 302. A second bolt positioning hole 304 is provided on the back of the second compression positioning ring plate 303. A second sealing groove 309 is provided on the inner side of the side of the second compression positioning ring plate 303 near the second positioning interface 3. A second telescopic groove 305 is provided on the outer side of the side of the second positioning ring 301 near the second positioning interface 3. A second spring 306 is fixedly connected to the inner side of the second telescopic groove 305. A second limiting ring plate 307 is fixedly connected to the side of the second spring 306 away from the second sealing ring plate 302. A second sealing ring 308 is fixedly connected to one side of the second limiting ring plate 307. After the first positioning interface 2 and the second positioning interface 3 are installed and positioned, the second limiting ring plate 307 and the second sealing groove 309 are moved towards the opening of the second telescopic groove 305 by the elasticity of the second spring 306. This gives the second sealing ring 308 the potential energy to move towards the inside of the first sealing groove 205, thus ensuring the seal between the first positioning interface 2 and the second positioning interface 3. Then, the second sealing ring 309 and the second sealing groove 309 are squeezed by the second spring 306, giving the second sealing groove 309 the potential energy to move towards the first sealing ring 209, thus ensuring the effective sealing between the two composite pipes.

[0025] In a preferred embodiment, there is a clearance fit between the inner diameter of the second sealing ring plate 302 and the outer diameter of the second positioning ring 301, and a clearance fit between the inner diameter of the first sealing ring plate 202 and the outer diameter of the first positioning ring 201.

[0026] In a preferred embodiment, the cross-sectional dimensions of the inner side of the second expansion groove 305 and the cross-sectional dimensions of the second limiting ring plate 307 are clearance-fitted, and the cross-sectional dimensions of the opening of the second expansion groove 305 and the cross-sectional dimensions of the second sealing ring 308 are clearance-fitted.

[0027] In a preferred embodiment, the cross-sectional dimensions of the inner side of the first expansion groove 206 and the cross-sectional dimensions of the first limiting ring plate 208 are clearance-fitted, and the cross-sectional dimensions of the opening of the first expansion groove 206 and the cross-sectional dimensions of the first sealing ring 209 are clearance-fitted.

[0028] In a preferred embodiment, the cross-sectional dimensions of the first sealing ring 209 and the cross-sectional dimensions of the second sealing groove 309 are mutually matched, and the cross-sectional dimensions of the second sealing ring 308 and the first sealing groove 205 are mutually matched.

[0029] The working principle of this utility model is as follows: During the installation and positioning process, the connecting positioning component 1, which connects the first positioning interface 2 and the second positioning interface 3, is connected and positioned with the composite pipe. Then, the first sealing ring 209 is aligned with the position of the second sealing groove 309, and the second sealing ring 308 is aligned with the position of the first sealing groove 205. Positioning is then achieved by compression. Finally, the first positioning interface 2 and the second positioning interface 3 are positioned by the connecting positioning bolt assembly 4, which ensures the effective connection and positioning of the two composite pipes. Furthermore, the user does not need to install gaskets, thus facilitating the user's installation and positioning.

[0030] After the first positioning interface 2 and the second positioning interface 3 are installed and positioned, the second limiting ring plate 307 and the second sealing groove 309 move toward the opening of the second telescopic groove 305 through the elasticity of the second spring 306 itself. This gives the second sealing ring 308 the potential energy to move toward the inside of the first sealing groove 205, thus ensuring the seal between the first positioning interface 2 and the second positioning interface 3. Then, through the compression of the first sealing ring 209 and the second sealing groove 309 by the second spring 306, the second sealing groove 309 has the potential energy to move toward the first sealing ring 209, ensuring that the two composite pipes can be effectively sealed.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steel-reinforced polyethylene-plastic composite pipe joint device for easy connection, comprising a connection positioning component (1), characterized in that: The back of the connecting positioning component (1) is fixedly connected to a first positioning interface (2), and the back of the first positioning interface (2) is provided with a first positioning interface (2). The first positioning interface (2) and the second positioning interface (3) are positioned and connected by a connecting positioning bolt assembly (4). The connecting positioning component (1) includes a connecting positioning tube (101), and the back of the connecting positioning tube (101) is fixedly connected to (102). A sealing block (103) is fixedly connected to the inner side of (102) near the connecting positioning tube (101).

2. The steel-reinforced polyethylene-plastic composite pipe joint device for easy connection according to claim 1, characterized in that: The first positioning interface (2) includes a first positioning ring (201), a first sealing ring plate (202) is fixedly connected to the outer side of the first positioning ring (201), a first compression positioning ring plate (203) is fixedly connected to the outer side of the first sealing ring plate (202), a first bolt positioning hole (204) is provided on the back of the first compression positioning ring plate (203), a first sealing groove (205) is provided on the outer side of the first sealing ring plate (202) near the second positioning interface (3), a first telescopic groove (206) is provided on the inner side of the first positioning ring (201) near the second positioning interface (3), a first spring (207) is fixedly connected to the inner side of the first telescopic groove (206), a first limiting ring plate (208) is fixedly connected to the side of the first spring (207) away from the first sealing ring plate (202), and a first sealing ring (209) is fixedly connected to the side of the first limiting ring plate (208) away from the first spring (207).

3. The steel-reinforced polyethylene-plastic composite pipe joint device for easy connection according to claim 2, characterized in that: The second positioning interface (3) includes a second positioning ring (301), a second sealing ring plate (302) is fixedly connected to the outer side of the second positioning ring (301), a second extrusion positioning ring plate (303) is fixedly connected to the outer side of the second sealing ring plate (302), a second bolt positioning hole (304) is provided on the back of the second extrusion positioning ring plate (303), a second sealing groove (309) is provided on the inner side of the side of the second extrusion positioning ring plate (303) near the second positioning interface (3), a second telescopic groove (305) is provided on the outer side of the side of the second positioning ring (301) near the second positioning interface (3), a second spring (306) is fixedly connected to the inner side of the second telescopic groove (305), a second limiting ring plate (307) is fixedly connected to the side of the second spring (306) away from the second sealing ring plate (302), and a second sealing ring (308) is fixedly connected to the side of the second limiting ring plate (307) away from the second limiting ring plate (307).

4. The steel-reinforced polyethylene composite pipe joint device for easy connection according to claim 3, characterized in that: The diameter of the inner side of the second sealing ring plate (302) and the diameter of the outer side of the second positioning ring (301) are fitted with a clearance, and the diameter of the inner side of the first sealing ring plate (202) and the diameter of the outer side of the first positioning ring (201) are fitted with a clearance.

5. The steel-reinforced polyethylene composite pipe joint device for easy connection according to claim 3, characterized in that: The cross-sectional dimensions of the inner side of the second expansion groove (305) and the cross-sectional dimensions of the second limiting ring plate (307) are fitted with a clearance, and the cross-sectional dimensions of the opening of the second expansion groove (305) and the cross-sectional dimensions of the second sealing ring (308) are fitted with a clearance.

6. The steel-reinforced polyethylene plastic composite pipe joint device according to claim 3, characterized in that: The cross-sectional dimensions of the inner side of the first expansion groove (206) and the cross-sectional dimensions of the first limiting ring plate (208) are clearance-fitted, and the cross-sectional dimensions of the opening of the first expansion groove (206) and the cross-sectional dimensions of the first sealing ring (209) are clearance-fitted.

7. The steel-reinforced polyethylene-plastic composite pipe joint device for easy connection according to claim 3, characterized in that: The cross-sectional dimensions of the first sealing ring (209) and the cross-sectional dimensions of the second sealing groove (309) are mutually matched, and the cross-sectional dimensions of the second sealing ring (308) and the cross-sectional dimensions of the first sealing groove (205) are mutually matched.

Images