Insulating pipe sleeve with voltage-withstanding structure

Abstract

The utility model provides an insulating pipe sleeve with a pressure-resistant structure, which comprises a protective layer and an inner core assembly, the inner core assembly is mounted in the protective layer and comprises an insulating layer, a reinforcing layer and an inner pipe layer, and the reinforcing layer is mounted in the insulating layer through a pressure-resistant spring. Compared with the prior art, the beneficial effects of the utility model are that through the arrangement of the protection layer, the protection layer can buffer the pressure through the deformation of the protection layer, and through the cooperation with the pressure-resistant spring in the inner core assembly, the instant high pressure is dispersed to multiple directions, and the direct impact on the cable protected in the inner core assembly is reduced; through the protection of the insulating layer, the reinforcing layer, the inner pipe layer and the like, the cable in the inner pipe layer can be kept in a good state under a complex environmental condition, the integrity of the cable is ensured by the multi-layer protection mechanism, and a stable and safe environment is provided for internal electrical equipment.

Description

Technical Field

[0001] The utility model belongs to the field of insulating pipe sleeve equipment, and particularly relates to an insulating pipe sleeve with a pressure-resistant structure. Background Technique

[0002] An insulating pipe sleeve is a tubular protection device used to cover the outside of electrical equipment, wires and cables and other conductors. Its main function is to provide electrical insulation, prevent current leakage, ensure the safe operation of the electrical system and protect the internal conductive components from the influence of external environmental factors. Some current insulating pipe sleeves have insufficient compressive resistance. First, they are insufficient in withstanding external pressure. For example, the cable pipe sleeves laid underground are easily affected by soil pressure. Especially in a deeper burial environment, the pressure generated by the weight of the soil may deform the pipe sleeve. In an industrial environment, external forces may be exerted on the pipe sleeve due to the extrusion, collision of equipment and the change of fluid pressure in the pipeline, etc., which may cause the pipe sleeve to be crushed or cracked. The main reasons for these disadvantages are that the material itself lacks sufficient strength and structural design to disperse the pressure. Conventional countermeasures include selecting insulating materials with slightly higher strength or increasing the material thickness. However, selecting high-strength insulating materials may increase the cost, and the flexibility of some high-strength materials will become worse, which is not conducive to installation and adaptation to complex environments. Increasing the material thickness may cause the pipe sleeve to become bulky and be restricted in application scenarios with limited space. At the same time, it may also increase the thermal resistance and affect the heat dissipation performance, which is not conducive to the long-term stable operation of electrical equipment. Therefore, a new structure needs to be proposed to solve the above technical problems. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide an insulating pipe sleeve with a pressure-resistant structure to solve the problems put forward in the above background technique.

[0004] The utility model is realized through the following technical solutions: an insulating pipe sleeve with a pressure-resistant structure, comprising: a protective layer and an inner core assembly. The inner core assembly is installed inside the protective layer. The inner core assembly includes: an insulating layer, a reinforcing layer and an inner pipe layer. The reinforcing layer is installed inside the insulating layer through a pressure-resistant spring. The inner pipe layer is installed on the inner wall of the reinforcing layer. A reinforcing arc plate and a tensile rib are installed inside the reinforcing layer. A receiving cavity is provided between the insulating layer and the reinforcing layer. The thickness of the reinforcing layer is greater than the thickness of the inner pipe layer. The thickness of the reinforcing layer is less than the thickness of the insulating layer. The diameter of the reinforcing layer is greater than the diameter of the inner pipe layer. The diameter of the reinforcing layer is less than the diameter of the insulating layer. The inner wall of the protective layer is connected to the outer surface of the insulating layer.

[0005] As a preferred embodiment, the protective layer has a corrugated pipe structure. The thickness of the protective layer is greater than that of the insulating layer. The length of the protective layer matches the length of the inner core assembly. The protective layer is made of refractory polyolefin material. During use, the protective layer with a corrugated pipe structure has good elasticity and flexibility. When the insulating pipe sleeve is subjected to external radial pressure, the protective layer can buffer the pressure through its own deformation. Coupled with the pressure-resistant spring inside the inner core assembly, the instantaneous high pressure is dispersed in multiple directions, reducing the direct impact on the cable protected inside the inner core assembly.

[0006] As a preferred embodiment, the insulating layer is made of polyvinyl chloride. A plurality of pressure-resistant springs are evenly installed on the inner wall of the insulating layer. One end of the pressure-resistant spring away from the insulating layer is connected to the outer surface of the reinforcing layer. The reinforcing layer is made of glass fiber.

[0007] As a preferred embodiment, a plurality of reinforcing arc plates are evenly implanted in a circular structure inside the reinforcing layer. A plurality of tensile ribs are evenly implanted in a circular structure between every two of the reinforcing arc plates. The tensile ribs are composed of a plurality of small strands of steel wire ropes woven together.

[0008] As a preferred embodiment, an inner pipe layer made of rubber is installed on the inner wall of the reinforcing layer. A cable for insulation is installed inside the inner pipe layer. A plurality of arc-shaped through grooves are evenly formed on the outer surface of the inner pipe layer.

[0009] As a preferred embodiment, the protective layer, the insulating layer, the reinforcing layer and the inner pipe layer form an insulating pipe sleeve assembly. During use, through the protection of the insulating layer, the reinforcing layer and the inner pipe layer, etc., the cable inside the inner pipe layer can maintain a good state under complex environmental conditions. This multi-layer protection mechanism ensures the integrity of the cable, thus providing a stable and safe environment for the internal electrical equipment.

[0010] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: By providing a protective layer with an inner core assembly installed inside, the protective layer has a corrugated pipe structure. During use, the protective layer with a corrugated pipe structure has good elasticity and flexibility. When the insulating pipe sleeve is subjected to external radial pressure, the protective layer can buffer the pressure through its own deformation. Coupled with the pressure-resistant spring inside the inner core assembly, the instantaneous high pressure is dispersed in multiple directions, reducing the direct impact on the cable protected inside the inner core assembly.

[0011] By setting up the inner core component, the inner core component includes: an insulating layer, a reinforcing layer, and an inner tube layer. The reinforcing layer is installed inside the insulating layer through a pressure-resistant spring, the inner tube layer is installed on the inner wall of the reinforcing layer, and a reinforcing arc plate and a tensile rib are installed inside the reinforcing layer. When in use, through the protection of the insulating layer, the reinforcing layer, the inner tube layer, etc., the cable inside the inner tube layer can maintain a good state under complex environmental conditions. This multi-layer protection mechanism ensures the integrity of the cable, thereby providing a stable and safe environment for the internal electrical equipment. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a schematic structural diagram of the inner core component of an insulating pipe sleeve with a pressure-resistant structure according to the present invention.

[0014] Figure 2 It is a schematic diagram of the protective layer of an insulating pipe sleeve with a pressure-resistant structure according to the present invention.

[0015] Figure 3 It is a schematic diagram of the tensile rib of an insulating pipe sleeve with a pressure-resistant structure according to the present invention.

[0016] Figure 4 It is a schematic diagram of the inner tube layer of an insulating pipe sleeve with a pressure-resistant structure according to the present invention.

[0017] In the figure, 100 - protective layer;

[0018] 200 - insulating layer, 210 - reinforcing layer, 211 - reinforcing arc plate, 212 - tensile rib, 220 - inner tube layer, 221 - arc-shaped through groove, 230 - pressure-resistant spring. Detailed Embodiment

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1 to 4, the present utility model provides a technical solution: an insulating pipe sleeve with a pressure-resistant structure, including: a protective layer 100 and an inner core assembly. The inner core assembly is installed inside the protective layer 100. The inner core assembly includes: an insulating layer 200, a reinforcing layer 210, and an inner pipe layer 220. The reinforcing layer 210 is installed inside the insulating layer 200 through a pressure-resistant spring 230. The inner pipe layer 220 is installed on the inner wall of the reinforcing layer 210. A reinforcing arc plate 211 and a tensile rib 212 are installed inside the reinforcing layer 210. A receiving cavity is provided between the insulating layer 200 and the reinforcing layer 210. The thickness of the reinforcing layer 210 is greater than the thickness of the inner pipe layer 220. The thickness of the reinforcing layer 210 is less than the thickness of the insulating layer 200. The diameter of the reinforcing layer 210 is greater than the diameter of the inner pipe layer 220. The diameter of the reinforcing layer 210 is less than the diameter of the insulating layer 200. The inner wall of the protective layer 100 is connected to the outer surface of the insulating layer 200.

[0021] Please refer to Figures 1 to 3 , as the first embodiment of the present utility model: the protective layer 100 has a corrugated pipe structure. The thickness of the protective layer 100 is greater than the thickness of the insulating layer 200. The length of the protective layer 100 matches the length of the inner core assembly. The protective layer 100 is made of refractory polyolefin material;

[0022] When in use, compared with the traditional rigid protective layer 100, the corrugated pipe structure can better adapt to the irregular external pressure distribution. For example, during the pipeline laying process, if there are bumps or depressions on the ground, the corrugated pipe can be adjusted adaptively according to the actual pressure changes, effectively preventing the inner core assembly from being damaged due to excessive local pressure. At the same time, in some environments with vibration sources, such as electrical circuits near equipment such as motors and pumps, the corrugated pipe structure of the protective layer 100 can play a shock-absorbing role. When external vibrations occur, the corrugated pipe will expand and contract periodically with the vibration. During this process, the vibration energy is absorbed by the elastic deformation of the corrugated pipe. This shock-absorbing function can protect the inner core assembly from the influence of vibrations and reduce the risk of loosening, wear, or fatigue damage of the inner core assembly caused by long-term vibrations. Moreover, the protective layer 100 with a corrugated pipe structure and the structure of the inner core assembly also have a certain degree of flexibility in the axial direction and can withstand a certain degree of tensile force. During the installation process, if the insulating pipe sleeve needs to adapt to a certain length change or is axially stretched during use, the corrugated pipe can effectively prevent the inner core assembly from being overstretched and damaged. At the same time, it can also resist a certain amount of torsional force. When the pipe sleeve is twisted, the annular structure of the corrugated pipe can share the torsional stress through its own deformation to protect the structural integrity of the inner core assembly. And when the insulating pipe sleeve is subjected to external radial pressure, the protective layer 100 can buffer the pressure through its own deformation, and cooperate with the pressure-resistant spring 230 inside the inner core assembly to disperse the instantaneous high pressure in multiple directions and reduce the direct impact on the cables protected inside the inner core assembly.

[0023] Please refer to Figures 1 to 3 , as the second embodiment of the present utility model: the insulating layer 200 is made of polyvinyl chloride, and a plurality of pressure-resistant springs 230 are evenly installed on the inner wall of the insulating layer 200. One end of the pressure-resistant spring 230 away from the insulating layer 200 is connected to the outer surface of the reinforcing layer 210, and the reinforcing layer 210 is made of glass fiber;

[0024] A plurality of reinforcing arc plates 211 are evenly implanted in the reinforcing layer 210 in a circular structure. A plurality of tensile ribs 212 are evenly implanted in a circular structure between every two reinforcing arc plates 211. The tensile ribs 212 are composed of a plurality of small strands of steel wire ropes;

[0025] An inner tube layer 220 made of rubber is installed on the inner wall of the reinforcing layer 210. A cable for insulation is installed inside the inner tube layer 220, and a plurality of arc-shaped through grooves 221 are evenly opened on the outer surface of the inner tube layer 220;

[0026] The protective layer 100, the insulating layer 200, the reinforcing layer 210 and the inner tube layer 220 form an insulating tube sleeve assembly;

[0027] When in use, when the outside is under pressure, the protective layer 100 on the outer surface of the inner core assembly will first receive the pressure, and part of the pressure will be dispersed through the protective layer 100. At this time, the pressure will be transmitted to the insulating layer 200, and then the insulating layer 200 will transmit the pressure to the pressure-resistant spring 230 on its inner wall (the pressure-resistant spring 230 is a kind of compression-resistant spring, and its specific material and data are prior art and will not be elaborated here). Thus, the pressure is dispersed by the cooperation of the insulating layer 200 and the pressure-resistant spring 230. When the entire inner core assembly is stretched, the reinforcing arc plates 211 and the tensile ribs 212 inside the reinforcing layer 210 can enhance the stretching effect of the entire inner core assembly. Since during use, through the protection of the insulating layer 200, the reinforcing layer 210 and the inner tube layer 220, etc., the cable inside the inner tube layer 220 can maintain a good state under complex environmental conditions. This multi-layer protection mechanism ensures the integrity of the cable, thereby providing a stable and safe environment for the internal electrical equipment.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An insulating pipe sleeve with a pressure-resistant structure, comprising: A protective layer (100) and an inner core assembly, characterized in that an inner core assembly is installed inside the protective layer (100), and the inner core assembly includes: an insulating layer (200), a reinforcing layer (210), and an inner tube layer (220). The reinforcing layer (210) is installed inside the insulating layer (200) through a pressure-resistant spring (230). The inner tube layer (220) is installed on the inner wall of the reinforcing layer (210). The reinforcing layer (210) is internally installed with reinforcing arc plates (211) and tensile ribs (212). A receiving cavity is provided between the insulating layer (200) and the reinforcing layer (210). The thickness of the reinforcing layer (210) is greater than the thickness of the inner tube layer (220). The thickness of the reinforcing layer (210) is less than the thickness of the insulating layer (200). The diameter of the reinforcing layer (210) is greater than the diameter of the inner tube layer (220). The diameter of the reinforcing layer (210) is less than the diameter of the insulating layer (200). The inner wall of the protective layer (100) is connected to the outer surface of the insulating layer (200).

2. The insulating pipe sleeve with a pressure-resistant structure as described in claim 1, characterized in that: The protective layer (100) is in a corrugated pipe structure. The thickness of the protective layer (100) is greater than the thickness of the insulating layer (200). The length of the protective layer (100) matches the length of the inner core assembly. The protective layer (100) is made of refractory polyolefin material.

3. The insulating pipe sleeve with a pressure-resistant structure according to claim 2, wherein: The insulating layer (200) is made of polyvinyl chloride. A plurality of pressure-resistant springs (230) are evenly installed on the inner wall of the insulating layer (200). One end of the pressure-resistant spring (230) away from the insulating layer (200) is connected to the outer surface of the reinforcing layer (210). The reinforcing layer (210) is made of glass fiber.

4. The insulating pipe sleeve with a pressure-resistant structure according to claim 3, characterized in that: A plurality of reinforcing arc plates (211) are evenly implanted in a ring structure inside the reinforcing layer (210). A plurality of tensile ribs (212) are evenly implanted in a ring structure between every two of the reinforcing arc plates (211). The tensile ribs (212) are composed of a plurality of small strands of steel wire ropes.

5. The insulating pipe sleeve with a pressure-resistant structure according to claim 4, characterized in that: The inner tube layer (220) with a rubber material is installed on the inner wall of the reinforcing layer (210). A cable for insulation is installed inside the inner tube layer (220). A plurality of arc-shaped through grooves (221) are evenly opened on the outer surface of the inner tube layer (220).

6. The insulating pipe sleeve with a pressure-resistant structure according to claim 5, characterized in that: The protective layer (100), the insulating layer (200), the reinforcing layer (210), and the inner tube layer (220) form an insulating tube sleeve assembly.

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