HDPE silicon core pipe

Abstract

The utility model relates to the field of electric power pipes, in particular to an HDPE (high-density polyethylene) silicon core pipe, which is characterized by comprising a silicon core main pipe and at least two positioning pipes, each positioning pipe is arranged on the outer wall of the silicon core main pipe, the axial direction of each positioning pipe is the same as that of the silicon core main pipe, and each positioning pipe is uniformly arranged around the axial center line of the silicon core main pipe. And the inner hole of each positioning pipe forms a positioning hole for inserting a positioning pin. Compared with the prior art, the HDPE silicon core pipe is provided with the positioning holes for inserting the positioning pins, so that the HDPE silicon core pipe can be accurately butted together during butting, the structural strength and the stability of the butting part can be enhanced, the convenience of cable penetration can be improved, the compression resistance and the distortion resistance of the butting part can be improved, and the service life of the HDPE silicon core pipe can be prolonged. Therefore, cracking at the butt joint position can be avoided after long-time use, a good protection effect on the cable can be achieved for a long time, potential safety hazards can be reduced, and the cable is particularly suitable for an underground installation environment.

Description

Technical Field

[0001] This utility model relates to the field of power pipes, and in particular to an HDPE silicon core pipe. Background Technology

[0002] Currently, the most common method for joining two HDPE silicon core tubes is through thermofusion welding. The specific process involves first heating the ends of the two HDPE silicon core tubes with an electric heating device to soften them enough to fuse together; then, holding each tube firmly with both hands to press their ends together; finally, after a period of cooling, the ends of the two HDPE silicon core tubes are joined together.

[0003] Because most existing HDPE silicon core pipes are round, and their ends lack any positioning structure to accurately align the two pipes, it's difficult to accurately connect them when holding and connecting two pipes separately. Misalignment often occurs, leading to uneven joint thickness. This results in poor strength and stability of the joint, making it prone to obstructing cable passage and limiting the compressive and torsional resistance of the joint. Consequently, cracking may occur after a period of use, reducing the HDPE's protective performance and posing a significant safety hazard. These technical problems are particularly prevalent when HDPE silicon core pipes are buried underground.

[0004] Therefore, it is essential to redesign the structure of HDPE silicon core tubes. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide an HDPE silicon core pipe with positioning holes for the insertion of positioning pins. This not only facilitates the precise joining of HDPE silicon core pipes during connection, but also enhances the structural strength and stability of the connection point. This improves the convenience of cable installation and enhances the compressive and torsional resistance of the connection point, thus preventing cracking at the connection point during long-term use. This provides long-term protection for the cable and reduces safety hazards, making it particularly suitable for buried installation environments.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An HDPE silicon core tube is characterized by comprising a silicon core main tube and at least two positioning tubes, each positioning tube being disposed on the outer wall of the silicon core main tube and having its axial direction aligned with that of the silicon core main tube, and the positioning tubes being evenly arranged around the axial centerline of the silicon core main tube, with the inner hole of each positioning tube forming a positioning hole for the insertion of a positioning pin.

[0008] Preferably, the outer wall of the positioning tube is connected to the outer wall of the silicon core tube by a circular arc transition.

[0009] Preferably, the HDPE silicon core tube further includes a heating ring, and at least two positioning pins are respectively provided on the two end faces of the heating ring. One end face of the heating ring is attached to the end face of the silicon core tube, and each positioning pin is inserted into the positioning hole on the corresponding positioning tube.

[0010] Preferably, the positioning pin is a stainless steel pin.

[0011] Preferably, the HDPE silicon core pipe further includes a heating sleeve, and the heating ring is disposed in the middle of the inner hole of the heating sleeve, and the heating ring is fitted onto the silicon core main pipe and each positioning pipe.

[0012] Preferably, the silicon core tube and each positioning tube are integrally formed.

[0013] The beneficial effects of this invention are as follows: The HDPE silicon core pipe has at least two positioning tubes, and each positioning tube is evenly arranged on the outer wall of the main silicon core pipe. This not only enhances the structural strength and torsional resistance of the HDPE silicon core pipe using the positioning tubes, but also helps installers determine whether the HDPE silicon core pipe is in a tortuous installation state. This significantly reduces the torsional force at the joint after connecting the HDPE silicon core pipes, thereby improving the stability and accuracy of installation positioning. The inner holes of each positioning tube serve as positioning holes for inserting positioning pins. When connecting two HDPE silicon core pipes, the ports of the two pipes can be accurately and stably connected using positioning pins. This enhances the structural strength and stability of the joint, improving the convenience of cable installation and increasing the compressive and torsional resistance of the joint. This also prevents cracking at the joint over long-term use, providing long-term protection for the cable and reducing safety hazards. It is particularly suitable for buried installation environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the HDPE silicon core pipe in this utility model.

[0015] Figure 2 This is a schematic diagram of the silicon core main tube of the heating sleeve assembly in this utility model.

[0016] Figure 3 This is a schematic diagram of the assembly of the heating ring and heating sleeve in this utility model.

[0017] Figure 4 This is a structural schematic diagram of the two HDPE silicon core pipes in the connected state in this utility model. Detailed Implementation

[0018] like Figure 1 As shown, the HDPE silicon core pipe of this utility model includes a silicon core main pipe 1 and at least two positioning pipes 2. Each positioning pipe 2 is disposed on the outer wall of the silicon core main pipe 1, and the axial direction of each positioning pipe 2 is in the same direction as the axial direction of the silicon core main pipe 1. Furthermore, each positioning pipe 2 is evenly arranged around the axial center line of the silicon core main pipe 1, and the inner hole of each positioning pipe 2 forms a positioning hole 21 for the insertion of positioning pins.

[0019] The HDPE silicon core pipe has at least two positioning pipes 2, and each positioning pipe 2 is evenly arranged on the outer wall of the silicon core main pipe 1. This not only enhances the structural strength and torsion resistance of the HDPE silicon core pipe by utilizing the positioning pipes 2, but also helps installers to judge whether the HDPE silicon core pipe is in a tortuous installation state. This greatly reduces the torsional force at the joint after the HDPE silicon core pipe is connected, thereby improving the stability and accuracy of the installation positioning.

[0020] The inner hole of each positioning tube 2 is used as a positioning hole 21 for the insertion of positioning pins. This allows for accurate and stable connection of the two HDPE silicon core tubes by positioning pins when they are connected. This enhances the structural strength and stability of the connection, thereby improving the convenience of cable installation and the compressive and torsional resistance of the connection. It also helps to prevent cracking at the connection during long-term use, providing good long-term protection for the cable and reducing safety hazards. It is particularly suitable for buried installation environments.

[0021] like Figure 1 As shown, the outer wall of the positioning tube 2 is connected to the outer wall of the silicon core tube 1 via a rounded transition. This enhances the connection strength between the positioning tube 2 and the silicon core tube 1, thereby making the reinforcing effect of the positioning tube 2 on the silicon core tube 1 more stable and reliable, and further contributing to improving the reliability and applicability of the HDPE silicon core tube.

[0022] like Figure 2 and Figure 3As shown, the HDPE silicon core pipe also includes a heating ring 3. At least two positioning pins 4 are respectively provided on both end faces of the heating ring 3. One end face of the heating ring 3 abuts against the end face of the silicon core main pipe 1, and each positioning pin 4 is inserted into the positioning hole 21 on the corresponding positioning pipe 2. The heating ring 3 can be used to achieve hot-melt welding of the HDPE silicon core pipe. The positioning pins 4 on the heating ring 3 can achieve a very accurate and stable positioning effect during hot-melt welding, thus facilitating the very accurate and stable connection of two HDPE silicon core pipes. This structure has very high reliability and applicability.

[0023] The positioning pin 4 is a stainless steel pin. This gives the positioning pin 4 high structural strength and durability, thus enabling it to play a more stable and reliable positioning role, which in turn helps to further improve the reliability and applicability of the HDPE silicon core pipe.

[0024] like Figures 2 to 4 As shown, the HDPE silicon core pipe also includes a heating sleeve 5, and a heating ring 3 is disposed in the middle of the inner hole of the heating sleeve 5, and the heating ring 3 is fitted onto the silicon core main pipe 1 and each positioning pipe 2. The heating ring 3 can achieve heat fusion connection through heating, which can help improve the sealing and stability of the joint, thereby helping to further improve the reliability and applicability of the HDPE silicon core pipe.

[0025] like Figures 2 to 4 As shown, the heating sleeve 5 and the heating ring 3 are an integral HDPE plastic structure. Electric heating coils 6 (using existing electric heating coils for thermofusion welding) are embedded in both the heating sleeve 5 and the heating ring 3, thus forming a heating sleeve 5 and heating ring 3 capable of thermofusion welding. A stainless steel shaft passes through the heating ring 3, and the two ends of this stainless steel shaft form positioning pins 4 on the end faces of the heating ring 3. This not only improves manufacturing convenience but also enhances structural reliability.

[0026] like Figures 2 to 4 As shown, when actually connecting two HDPE silicon core pipes, the ends of the two HDPE silicon core pipes are first embedded in the two ends of the heating sleeve 5, and the end faces of the two HDPE silicon core pipes are tightly attached to the end faces of the heating ring 3. The positioning pins 4 on the end faces of the heating ring 3 are then inserted into the corresponding positioning holes 21. Next, the heating sleeve 5 and the electric heating coil 6 on the heating ring 3 are heated, which allows the heating sleeve 5 and the heating ring 3 to be thermally fused, thereby achieving a thermal fusion connection between the ends of the two HDPE silicon core pipes. This allows the two HDPE silicon core pipes to be accurately and stably connected together.

[0027] like Figure 1As shown, the silicon core main tube 1 and each positioning tube 2 are integrally formed HDPE material structures. This not only improves manufacturing convenience but also enhances the reliability of the HDPE silicon core tube, thereby further improving the applicability of the HDPE silicon core tube.

Claims

1. An HDPE silicon core pipe, characterized in that: It includes a silicon core tube (1) and at least two positioning tubes (2). Each positioning tube (2) is set on the outer wall of the silicon core tube (1), and the axial direction of each positioning tube (2) is the same as the axial direction of the silicon core tube (1). The positioning tubes (2) are evenly arranged around the axial center line of the silicon core tube (1). The inner hole of each positioning tube (2) forms a positioning hole (21) for the insertion of positioning pins.

2. The HDPE silicon core pipe according to claim 1, characterized in that: The outer wall of the positioning tube (2) is connected to the outer wall of the silicon core tube (1) by a circular arc transition.

3. The HDPE silicon core pipe according to claim 1, characterized in that: It also includes a heating ring (3), with at least two positioning pins (4) respectively provided on the two end faces of the heating ring (3). One end face of the heating ring (3) is attached to the end face of the silicon core tube (1), and each positioning pin (4) is inserted into the positioning hole (21) on the corresponding positioning tube (2).

4. The HDPE silicon core pipe according to claim 3, characterized in that: The positioning pin (4) is a stainless steel pin.

5. The HDPE silicon core pipe according to claim 3, characterized in that: It also includes a heating sleeve (5), wherein the heating ring (3) is disposed in the middle of the inner hole of the heating sleeve (5), and the heating ring (3) is fitted onto the silicon core main tube (1) and each positioning tube (2).

6. The HDPE silicon core pipe according to any one of claims 1 to 5, characterized in that: The silicon core tube (1) and each positioning tube (2) are integrally formed.

Images