Anti-corrosion ground wire protection tube

Abstract

This utility model relates to the technical field of grounding wire protection devices, and discloses a corrosion-resistant grounding wire protection pipe, including a pipe body and a connecting assembly. The pipe body has a three-layer composite structure, consisting of an inner anti-corrosion layer, a middle reinforcing layer, and an outer weather-resistant layer from the inside out. The three layers are fixedly connected as one unit. The connecting assembly is used to achieve a sealed connection between two adjacent pipe sections, including a connector body, a sealing ring, and a snap fastener. The two ends of the connector body respectively mate with the ends of the adjacent pipe sections. The advantages compared to existing technologies are: the connecting assembly uses a "double sealing ring + anti-slip tooth snap fastener" design. The sealing ring is embedded in the sealing groove to achieve a tight seal, preventing rainwater and impurities from seeping in; the snap fastener tightly clamps the joint, and the anti-slip teeth increase friction, preventing loosening of the connection and providing all-round protection for the grounding wire from external corrosion; the guide convex strips evenly distributed on the inner wall of the pipe guide the grounding wire to move axially, reducing frictional resistance and damage during threading.

Description

Technical Field

[0001] This utility model relates to the technical field of grounding wire protection devices, specifically to a corrosion-resistant grounding wire protection pipe. Background Technology

[0002] Existing grounding wire protection pipes are mostly made of a single material, which has poor corrosion resistance. When exposed to the outdoor environment for a long time, they are easily corroded by rainwater, moisture and corrosive media, which can lead to pipe damage and affect the insulation protection effect of the grounding wire.

[0003] Meanwhile, the connection structure between adjacent protective pipes is simple and the sealing performance is insufficient, which can easily lead to rainwater seepage and impurities entering, accelerating the corrosion of the grounding wire. Some protective pipes have low structural strength and are prone to deformation due to external impact when used outdoors. In addition, the inner wall of the pipe is smooth, which makes it difficult to guide the grounding wire when it is installed, resulting in low operating efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is the poor corrosion resistance, insufficient connection sealing, low structural strength and lack of wire guiding of existing grounding wire protection pipes. It achieves efficient corrosion resistance of the pipe body, reliable connection sealing, improved structural strength and convenient wire pulling, thereby ensuring the long-term stable operation of the grounding wire.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A corrosion-resistant grounding wire protection pipe includes a pipe body and a connecting assembly. The pipe body has a three-layer composite structure, consisting of an inner anti-corrosion layer, a middle reinforcing layer, and an outer weather-resistant layer from the inside out. The three layers are fixedly connected as one unit. The connecting assembly is used to achieve a sealed connection between two adjacent pipe sections and includes a connector body, a sealing ring, and a fastener. The two ends of the connector body respectively mate with the ends of the adjacent pipe body. The sealing ring is located at the mating point between the connector body and the pipe body. The fastener is fitted onto the joint between the connector body and the pipe body and locks them together.

[0007] The outer surface of the pipe body is provided with annular reinforcing ribs spaced along the axial direction. The annular reinforcing ribs are fixedly connected to the outer weather-resistant layer. The inner wall of the inner anti-corrosion layer of the pipe body is provided with guide ribs extending along the axial direction.

[0008] As an improvement, the inner anti-corrosion layer is made of polytetrafluoroethylene, the middle reinforcing layer is made of glass fiber reinforced polypropylene, and the outer weather-resistant layer is made of modified weather-resistant polyethylene. The three-layer structure is integrally formed by co-extrusion molding process.

[0009] As an improvement, the connector body is a cylindrical structure with steps at both ends. One end is the insertion end, which is inserted into the cavity of the previous section of the pipe, and the other end is the receiving end, which accommodates the end of the next section of the pipe. The inner walls of both the insertion end and the receiving end are provided with annular sealing grooves, and the sealing ring is embedded in the sealing grooves. The fastener is composed of two semi-annular components, which are detachably connected by bolts and are tightly fastened to the joint between the connector body and the pipe body after being fastened.

[0010] As an improvement, the annular reinforcing ribs are integrally formed with the outer weather-resistant layer and are evenly spaced along the axial direction of the tube.

[0011] As an improvement, at least three guide strips are provided, which are evenly distributed along the inner wall of the inner anti-corrosion layer, and the length of the guide strips is adapted to the length of the pipe body. The multiple evenly distributed guide strips can play a guiding and limiting role when the grounding wire is installed, reduce the friction between the grounding wire and the inner wall of the pipe body, improve the wire installation efficiency, and at the same time prevent the grounding wire from shaking randomly inside the pipe.

[0012] As an improvement, the inner side of the buckle is provided with anti-slip teeth, which fit against the outer surface of the connector body and the pipe body. The anti-slip teeth can increase the friction between the buckle and the connector and the pipe body, prevent the buckle from loosening, further ensure the locking reliability of the connection, and avoid the connection from falling off due to vibration after long-term use.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1. The connection component of this utility model adopts the design of "double sealing ring + anti-slip tooth buckle". The sealing ring is embedded in the sealing groove to achieve a close seal and prevent rainwater and impurities from seeping in; the buckle tightly clamps the joint and the anti-slip teeth increase friction to avoid loosening of the connection and protect the grounding wire from external corrosion in all directions.

[0015] 2. The middle layer of glass fiber reinforced polypropylene of this utility model improves the basic strength of the pipe body, and the integrated ring reinforcing rib on the outer surface further enhances the resistance to compression and deformation, which can resist outdoor impact and reduce the risk of pipe body damage.

[0016] 3. The guide ridges evenly distributed on the inner wall of the tube of this utility model can guide the grounding wire to move axially, reduce frictional resistance and damage during wire threading, and improve installation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of this utility model.

[0018] Figure 2 This is an exploded schematic diagram of this utility model.

[0019] Figure 3 This is a partial structural cross-sectional view of this utility model.

[0020] Figure 4 This is an exploded view of the buckle component of this utility model.

[0021] As shown in the figure: 1. Pipe body; 11. Inner anti-corrosion layer; 12. Middle reinforcing layer; 13. Outer weather-resistant layer; 2. Connecting components; 21. Joint body; 213. Annular sealing groove; 22. Sealing ring; 23. Fastener; 231. Semi-annular component; 232. Bolt; 233. Anti-slip teeth; 3. Annular reinforcing rib; 4. Guide ridge. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Please see the appendix Figure 1 Appendix Figure 2 As shown, a corrosion-resistant grounding wire protection pipe includes a pipe body 1 and a connecting component 2. The pipe body 1 is made into a three-layer composite structure using a co-extrusion molding process. The inner anti-corrosion layer 11 is made of polytetrafluoroethylene to ensure excellent corrosion resistance and insulation performance. The middle reinforcing layer 12 is made of glass fiber reinforced polypropylene to improve the overall impact resistance and bending strength of the pipe body 1. The outer weather-resistant layer 13 is made of modified weather-resistant polyethylene to enhance outdoor resistance to ultraviolet aging and high and low temperature resistance.

[0025] The annular reinforcing ribs 3 on the outer surface of the tube body 1 are co-extruded integrally with the outer weather-resistant layer 13. The annular reinforcing ribs 3 are spaced apart along the axial direction of the tube body 1. The evenly distributed annular reinforcing ribs 3 can effectively disperse the external force on the tube body and avoid the tube body from being squeezed and deformed. The inner wall of the inner anti-corrosion layer 11 of the tube body 1 has at least three guide ribs 4, which are evenly distributed along the circumference. The cross-section of the guide ribs 4 is semi-circular and the length is consistent with the length of the tube body 1. When the grounding wire is installed, it can guide the grounding wire to move along the axial direction of the tube body and reduce friction damage.

[0026] See appendix Figure 2 Appendix Figure 3 and attached Figure 4 As shown, the connector body 21 of the connecting component 2 is made of ABS engineering plastic and is a cylindrical structure with steps at both ends. The outer diameter of the insertion end is adapted to the inner diameter of the tube body 1 (0.5-1mm smaller than the inner diameter of the tube body); the inner diameter of the receiving end is adapted to the outer diameter of the tube body 1 (0.5-1mm larger than the outer diameter of the tube body); both the insertion end and the receiving end are provided with annular sealing grooves 213 for embedding nitrile rubber sealing rings 22. The cross-sectional diameter of the sealing ring 22 is 0.5-1mm larger than the depth of the sealing groove to ensure that the sealing ring 22 is compressed during mating and achieves reliable sealing. The two semi-annular components 231 of the buckle 23 are made of galvanized steel plate, with anti-slip teeth 233 stamped on the inner side. Each semi-annular component 231 has connecting ear plates at both ends, with bolt holes on the ear plates. The two semi-annular components 231 are detachably connected by stainless steel bolts 232. After fastening, the inner diameter of the buckle 23 is 2-3 mm smaller than the maximum outer diameter of the joint between the connector body 21 and the pipe body 1, ensuring a tight clamping effect. The anti-slip teeth 233 fit tightly against the outer surface of the connector body 21 and the pipe body 1, preventing the buckle 23 from loosening.

[0027] In specific implementation of this utility model: First, cut the required length of pipe body 1 according to the grounding wire installation path, and insert the grounding wire from one end of the pipe body 1. Use the inner guide convex strip 4 to guide the grounding wire to pass smoothly through the pipe body 1. When it is necessary to connect two adjacent pipe sections, put the end of the first pipe section 1 on the insertion end of the connector body 21 to ensure that the end of the pipe body abuts against the step of the connector body 21. At this time, the sealing ring 22 of the insertion end is squeezed and sealed by the inner wall of the pipe body. Then put the end of the second pipe section 1 on the receiving end of the connector body 21, and similarly make the end of the pipe body abut against the step. The sealing ring 22 of the receiving end is squeezed and sealed by the outer wall of the pipe body.

[0028] Subsequently, the two semi-circular components 231 are fastened to the joint between the connector body 21 and the pipe body 1, and the bolts 232 are inserted and tightened, so that the fasteners 23 tightly clamp the joint, and the anti-slip teeth 233 are embedded in the surface of the connector and the pipe body to prevent loosening. After installation, the three-layer structure of the pipe body 1 achieves corrosion protection, the connection part is sealed and locked, the annular reinforcing ribs 3 improve the structural strength, and the grounding wire is reliably protected.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A corrosion-resistant grounding wire protection pipe, comprising a pipe body (1) and a connecting assembly (2), characterized in that: The pipe body (1) is a three-layer composite structure, consisting of an inner anti-corrosion layer (11), a middle reinforcing layer (12), and an outer weather-resistant layer (13) from the inside out. The three layers are fixedly connected as one unit. The connecting component (2) is used to achieve a sealed connection between two adjacent pipe sections (1). It includes a connector body (21), a sealing ring (22), and a fastener (23). The two ends of the connector body (21) are respectively engaged with the ends of the adjacent pipe body (1). The sealing ring (22) is set at the engagement point between the connector body (21) and the pipe body (1). The fastener (23) is sleeved on the joint between the connector body (21) and the pipe body (1) and locks them together. The outer surface of the pipe body (1) is provided with annular reinforcing ribs (3) spaced along the axial direction. The annular reinforcing ribs (3) are fixedly connected to the outer weather-resistant layer (13). The inner wall of the inner anti-corrosion layer (11) of the pipe body (1) is provided with guide protrusions (4) extending along the axial direction.

2. The corrosion-resistant grounding wire protection pipe according to claim 1, characterized in that: The inner anti-corrosion layer (11) is made of polytetrafluoroethylene, the middle reinforcing layer (12) is made of glass fiber reinforced polypropylene, and the outer weather-resistant layer (13) is made of modified weather-resistant polyethylene. The three-layer structure is integrally formed by co-extrusion molding process.

3. The corrosion-proof grounding wire protection tube according to claim 1, characterized in that: The connector body (21) is a cylindrical structure with steps at both ends. One end is the insertion end, which is inserted into the cavity of the previous section of the pipe (1). The other end is the receiving end, which accommodates the end of the next section of the pipe (1). The inner walls of the insertion end and the receiving end are provided with annular sealing grooves (213). The sealing ring (22) is embedded in the sealing groove (213). The fastener (23) is composed of two semi-annular components (231). The two semi-annular components (231) are detachably connected by bolts (232) and are fastened to the joint between the connector body (21) and the pipe (1) after being fastened.

4. The corrosion-proof grounding wire protection tube according to claim 1, characterized in that: The annular reinforcing rib (3) is integrally formed with the outer weather-resistant layer (13) and is evenly distributed along the axial direction of the tube body (1).

5. The corrosion-proof grounding wire protection tube according to claim 1, characterized in that: At least three guide strips (4) are provided, which are evenly distributed along the inner wall of the inner anti-corrosion layer (11), and the length of the guide strips (4) is adapted to the length of the pipe body (1).

6. The corrosion-proof ground wire protection tube of claim 1, wherein: The inner side of the buckle (23) is provided with anti-slip teeth (233), which are in contact with the outer surface of the connector body (21) and the tube body (1).

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