Annular limiting type insulating electrical pipe fitting

Abstract

The utility model discloses an annular limit type insulating electrical pipe fitting, which belongs to the technical field of electrical pipe fittings, and comprises a pipe body, the pipe body is composed of a connecting end, an inserting end and a flaring end, a plurality of protruding parts are arranged in the connecting end, a straight tube part is arranged in the connecting end, and the inserting end is connected with the straight tube part. Connecting plates are fixedly connected between the protruding parts and the straight cylinder part, and limiting grooves are formed between the adjacent protruding parts. According to the invention, the annular limiting structure is ingeniously designed, so that the position of the cable can be accurately fixed, winding and displacement disorder can be completely eradicated, and the cable can be conveniently maintained and searched; by selecting high-quality insulating materials and optimizing the structure, long-acting and stable insulation is guaranteed, interference of environmental factors is avoided, the structure has the advantages of being light and easy to install, tedious additional procedures are not needed, the defects of traditional pipe fittings are effectively overcome, the quality and efficiency of electrical installation and operation and maintenance are greatly improved, and the comprehensive cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical conduit technology, and in particular to a ring-shaped limiting insulating electrical conduit. Background Technology

[0002] In electrical installation engineering, electrical conduits are widely used for wiring, playing a crucial role in protecting, guiding, and isolating cables. However, traditional electrical conduits have many shortcomings, which seriously affect the safety, stability, and ease of installation and maintenance of electrical systems.

[0003] While existing ordinary PVC electrical conduits offer certain insulation and cost advantages, their simple structural design, consisting of only a tubular shape, makes it easy for cables to become tangled and shift during cable installation. This is especially problematic in long-distance or parallel cable installations, where precise cable location becomes difficult during maintenance and repairs, requiring significant time to untangle cables and greatly reducing work efficiency. Furthermore, when subjected to external forces such as pulling or vibration, the internal cables lack effective restraint and are prone to frequent friction against the conduit wall, leading to damage to the cable insulation layer and increasing the risk of leakage and short circuits.

[0004] Metal electrical conduits, such as galvanized steel pipes, have high mechanical strength and can withstand significant external impacts. However, their conductivity makes insulation treatment complex and costly. Even with internal insulation lining, after long-term use, gaps and delamination can easily appear at the joint between the metal and the insulation lining due to the inconsistency between their thermal expansion and contraction coefficients, weakening the insulation effect and endangering electrical safety. At the same time, the smooth inner wall of metal pipes provides poor cable restraint, leading to cable displacement and entanglement problems. Furthermore, the heavy weight of metal pipes makes handling and installation difficult, resulting in low construction efficiency. Additional measures such as grounding and corrosion protection must also be considered, increasing the overall cost and complexity of the project.

[0005] Therefore, a ring-shaped limiting insulating electrical conduit fitting is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a ring-shaped limiting insulating electrical conduit that can solve the problems of poor limiting effect of existing electrical conduits, which easily lead to cable displacement and entanglement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a ring-shaped limiting insulating electrical conduit, comprising a conduit body, the conduit body being composed of a connecting end, an insertion end and a flared end, the connecting end having a plurality of protrusions inside, the connecting end having a straight cylindrical portion inside, a connecting plate being fixedly connected between the protrusions and the straight cylindrical portion, and a limiting groove being formed between adjacent protrusions;

[0008] The connection end includes a base layer, the surface of which is provided with an insulating layer, and the surface of which is provided with a wear-resistant layer.

[0009] Preferably, the surface of the insertion end has an outer taper, and the flared end has an inner taper flare, and the insertion end and the flared end are used in conjunction with each other.

[0010] Preferably, both the surface of the protrusion and the inner wall of the insertion end are provided with a protective layer. The protective layer is made of rubber material and has a thickness of 0.2-0.5 mm, which is used to protect the cable from friction damage.

[0011] Preferably, the connecting end, insertion end, flared end, protruding straight section, and connecting plate are all integrally molded by injection molding.

[0012] Preferably, the base layer is made of polycarbonate material as a base, with added glass fiber reinforcement and nano-level insulating additives, and is a modified engineering plastic produced by mixing and extrusion molding.

[0013] Preferably, the insulating layer is made of polyvinyl chloride material with a thickness of 0.5-1 mm, which increases the insulation performance of the pipe body.

[0014] Preferably, the wear-resistant layer is made of polyurethane material with a thickness of 0.2-0.5 mm, which increases the wear resistance of the pipe body and resists external friction damage.

[0015] Preferably, an adhesive reinforcement layer is provided between the base layer, the insulating layer and the wear-resistant layer. The adhesive reinforcement layer is made of epoxy resin material and has a thickness of 0.1-0.2 mm. It is used to strengthen the bonding strength between the layers and prevent peeling between the coatings.

[0016] Preferably, the outer wall of the flared end is provided with an axial marking groove with a depth of 1-2 mm, which is used to mark the pipe fitting specifications, model, production date and other information for easy identification and management.

[0017] Preferably, the surface of the insertion end is fitted with an elastic sealing rubber ring, and the insertion end and the flared end are connected tightly and sealed by the elastic sealing rubber ring.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This application, through the ingenious design of a ring-shaped limiting structure, can accurately fix the position of the cable, eliminate the problems of tangling and displacement, and facilitate the maintenance and retrieval of the cable;

[0020] 2. This application ensures long-term stable insulation by selecting high-quality insulation materials and optimizing the structure, which is not affected by environmental factors. It also has the advantages of being lightweight and easy to install, without the need for cumbersome additional procedures. It effectively overcomes the defects of traditional pipe fittings, greatly improves the quality and efficiency of electrical installation and maintenance, and reduces overall costs. Attached Figure Description

[0021] Figure 1 This is an overall structural diagram of the annular limiting insulated electrical conduit of this utility model;

[0022] Figure 2 This is a front sectional view of the connecting end of this utility model;

[0023] Figure 3 This is a schematic diagram of the components of the connecting end of this utility model.

[0024] In the diagram, 1 is the tube body; 2 is the connecting end; 202 is the insulation layer; 203 is the wear-resistant layer; 3 is the insertion end; 4 is the flared end; 5 is the protrusion; 6 is the straight section; 7 is the connecting plate; 8 is the limiting groove; 9 is the protective layer; and 201 is the base layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 The present invention provides the following technical solution:

[0027] A ring-shaped limiting insulating electrical conduit includes a conduit body 1, which is composed of a connecting end 2, an insertion end 3 and a flared end 4. The connecting end 2 has a plurality of protrusions 5 inside and a straight cylindrical part 6 inside. A connecting plate 7 is fixedly connected between the protrusions 5 and the straight cylindrical part 6. A limiting groove 8 is formed between adjacent protrusions 5.

[0028] The connecting end 2 includes a base layer 201, an insulating layer 202 on the surface of the base layer 201, and a wear-resistant layer 203 on the surface of the insulating layer 202. The base layer 201 is made of polycarbonate material as a base, with added glass fiber reinforcement and nano-level insulating additives, and is a modified engineering plastic made by mixing and extrusion molding. The insulating layer 202 is made of polyvinyl chloride material with a thickness of 0.5-1 mm to increase the insulation performance of the tube body 1. The wear-resistant layer 203 is made of polyurethane material with a thickness of 0.2-0.5 mm to increase the wear resistance of the tube body 1 and resist external friction damage. An adhesive reinforcement layer is provided between the base layer 201, the insulating layer 202 and the wear-resistant layer 203. Several protrusions 5 form neatly arranged limiting grooves 8 to accommodate cables of different lines, which can make the cables neatly arranged and accurately positioned. During maintenance, the target cable can be quickly locked, and the working efficiency is increased by more than 50% compared with traditional pipe fittings. The adhesive reinforcement layer made of epoxy resin material can strengthen the bonding strength between the layers and prevent the coating from peeling off.

[0029] Specifically, such as Figure 1 , Figure 3 As shown, the surface of the insertion end 3 has an outer taper, and the flared end 4 has an inner taper. The insertion end 3 and the flared end 4 are used together. The surface of the protrusion 5 and the inner wall of the insertion end 3 are both provided with a protective layer 9. The protective layer 9 is made of rubber material with a thickness of 0.2-0.5 mm, which is used to protect the cable from friction damage. The connecting end 2, the insertion end 3, the flared end 4, the straight cylindrical part 6 of the protrusion 5 and the connecting plate 7 are all integrally molded by injection molding. The outer wall of the flared end 4 is provided with an axial marking groove with a depth of 1-2 mm, which is used to mark the pipe specifications, model, production date and other information for easy identification and management. The surface of the insertion end 3 is fitted with an elastic sealing rubber ring. The insertion end 3 and the flared end 4 are connected tightly and sealed by the elastic sealing rubber ring.

[0030] In this embodiment: through the unique design of the insertion end 3 and the flared end 4, and the cooperation of the elastic sealing rubber ring, during installation, the insertion end 3 smoothly enters the flared end 4, and with the help of the tapered tight fit, the elastic sealing rubber ring is sealed under pressure, ensuring a firm connection that is waterproof, dustproof, and prevents loosening, adapting to complex installation environments. The protective layer 9 made of rubber material can protect the cable when it is inserted, avoiding friction damage and improving the protection effect of the cable. The setting of the marking groove facilitates identification and management.

[0031] Working principle: During installation, the tube body 1 is connected to the insertion end 3 and the flared end 4. The tapered fit and the elastic sealing rubber ring are pressurized to seal, ensuring a firm connection that is waterproof, dustproof, and prevents loosening. This adapts to complex installation environments. The cable is inserted into the limiting groove 8, which accommodates cables of different lines, allowing for neat cable arrangement and precise positioning. During maintenance, the target cable can be quickly located. The insulation layer 202 increases the insulation performance of the tube body 1, and the wear-resistant layer 203 increases the wear resistance of the tube body 1, resisting external friction damage. The adhesive reinforcement layer strengthens the bonding strength between layers and prevents peeling between coatings.

[0032] 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, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ring-shaped limiting insulated electrical conduit, comprising a conduit body (1), characterized in that: The tube body (1) is composed of a connecting end (2), an insertion end (3) and a flared end (4). The connecting end (2) has a plurality of protrusions (5) inside and a straight cylindrical part (6) inside. A connecting plate (7) is fixedly connected between the protrusions (5) and the straight cylindrical part (6). A limiting groove (8) is formed between adjacent protrusions (5). The connecting end (2) includes a base layer (201), the surface of the base layer (201) is provided with an insulating layer (202), and the surface of the insulating layer (202) is provided with a wear-resistant layer (203).

2. The annular limiting insulating electrical conduit according to claim 1, characterized in that: The surface of the insertion end (3) has an outer taper, and the flared end (4) has an inner taper flare. The insertion end (3) and the flared end (4) are used in conjunction with each other.

3. The annular limiting insulating electrical conduit according to claim 1, characterized in that: The surface of the protrusion (5) and the inner wall of the insertion end (3) are provided with a protective layer (9). The protective layer (9) is made of rubber material and has a thickness of 0.2-0.5 mm. It is used to protect the cable from friction damage.

4. The annular limiting insulating electrical conduit according to claim 1, characterized in that: The connecting end (2), insertion end (3), flared end (4), protrusion (5), straight cylinder (6) and connecting plate (7) are all integrally molded by injection molding machine.

5. A ring-shaped limiting insulating electrical conduit according to claim 1, characterized in that: The insulating layer (202) is made of polyvinyl chloride material with a thickness of 0.5-1 mm, which increases the insulation performance of the tube body (1).

6. The annular limiting insulating electrical conduit according to claim 1, characterized in that: The wear-resistant layer (203) is made of polyurethane material with a thickness of 0.2-0.5 mm, which increases the wear resistance of the tube body (1) and resists external friction damage.

7. A ring-shaped limiting insulating electrical conduit according to claim 1, characterized in that: An adhesive reinforcement layer is provided between the base layer (201), the insulation layer (202), and the wear-resistant layer (203). The adhesive reinforcement layer is made of epoxy resin material and has a thickness of 0.1-0.2 mm. It is used to strengthen the bonding strength between the layers and prevent peeling between the coatings.

8. A ring-shaped limiting insulating electrical conduit according to claim 1, characterized in that: The outer wall of the flared end (4) is provided with an axial marking groove, the depth of which is 1-2 mm.

9. A ring-shaped limiting insulating electrical conduit according to claim 1, characterized in that: The surface of the insertion end (3) is fitted with an elastic sealing rubber ring, and the insertion end (3) and the flared end (4) are connected tightly and sealed between the pipe fittings through the elastic sealing rubber ring.

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