Compression-resistant polyimide sleeve

Abstract

The utility model discloses a compression-resistant polyimide sleeve, which comprises a sleeve main body, the surface of the sleeve main body is provided with a wire coiling groove, the bottom end of the wire coiling groove is provided with an outer layer, the inner side of the outer layer is provided with a middle layer, and the inner side of the middle layer is provided with an inner layer. According to the pressure-resistant polyimide sleeve, the outer layer is mainly used for resisting corrosion and damage of the external environment to the sleeve, the middle layer is used for enhancing the overall pressure-resistant strength and simultaneously enhancing the stability of other structures, and the middle layer is mainly in direct contact with an electrical cable and the like, so that a material with better flexibility is selected and can be in better contact with an internal wrapper, and the service life of the sleeve is prolonged. The outer layer is further provided with the wire coiling groove, after the wire coiling groove is wrapped, the sleeve is bundled by winding a circle of metal iron wires and the like on the outer wall, so that the whole sleeve can be better attached to a wrapping object and protect the wrapping object, and the wrapping object is embedded in the preset wire coiling groove, so that extrusion damage to the outer layer can be greatly avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polyimide sleeves, in particular to a compression-resistant polyimide sleeve. Background Art

[0002] Compression-resistant polyimide tubing is a high-performance tubing material. Due to its unique compressive resistance and excellent physical and chemical properties, compression-resistant polyimide tubing is widely used in multiple fields. In the aerospace field, it can be used for insulation protection of wires and cables, and line protection of sensors and instruments. In the automotive electronics field, it can be used for high-temperature wiring harness protection in the engine compartment, and line protection of sensors and controllers. In the power communications field, it can be used for insulation protection of high-voltage cables and sheathing of optical fiber communication lines.

[0003] Many existing pressure-resistant polyimide sleeves are generally used in conjunction with lines. The number of lines in use varies depending on the situation. This results in many sleeves being unable to fit the lines when the lines are thinner, and being unable to be used if the lines are thicker.

[0004] To this end, we propose a compression-resistant polyimide sleeve to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a pressure-resistant polyimide sleeve. When the pressure-resistant polyimide sleeve is used, the pressure-resistant polyimide sleeve is provided with three layers: an inner layer, a middle layer and an outer layer. The outer layer is mainly used to resist erosion and damage to the sleeve by the external environment. For this purpose, corrosion-resistant and wear-resistant materials are selected. The middle layer is set to glass fiber material to enhance the overall compressive strength and enhance the stability of other structures. The inner layer is mainly in direct contact with electrical cables, etc. For this purpose, materials with better flexibility are selected, which can better contact with the internal wrapping and protect it. A wire winding groove is also provided on the outer layer. After the wire winding groove is wrapped, the sleeve is tightened by wrapping a circle such as metal wire on the outer wall, so that the entire sleeve can better fit the wrapping and protect it. The wrapped object is embedded in the preset wire winding groove, which can greatly avoid extrusion damage to the outer layer, and together with the outer layer, it constitutes a ring of the protective layer, protecting the entire sleeve from the outside, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A compression-resistant polyimide sleeve comprises a sleeve body, a surface of which is provided with a wire winding groove, an outer layer is installed at the bottom end of the wire winding groove, a middle layer is provided on the inner side of the outer layer, and an inner layer is provided on the inner side of the middle layer.

[0008] In a further embodiment, the cable trough is provided with a plurality of overall corrugated lines, all of which are arranged on the outer wall of the outer layer, while the inner wall of the cable trough is provided with metal wires and ropes.

[0009] In a further embodiment, the material of the outer layer is wear-resistant and corrosion-resistant polyimide.

[0010] In a further embodiment, the middle layer is a glass fiber or aramid fiber reinforced material, which is connected to the inside of the outer layer by an adhesive.

[0011] In a further embodiment, the inner layer is a soft polyimide film, which is also bonded to the inside of the middle layer by an adhesive.

[0012] In a further embodiment, a coating layer is provided at both end openings of the sleeve body. The coating layer is a sealant and is coated on each incision of the sleeve body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the present invention, when the pressure-resistant polyimide sleeve is used, the pressure-resistant polyimide sleeve is provided with an inner, middle and outer three layers, wherein the outer layer is mainly used to resist erosion and damage to the sleeve by the external environment, for which purpose a corrosion-resistant and wear-resistant material is selected, and the middle layer is set to glass fiber material to enhance the overall compressive strength and enhance the stability of other structures at the same time, and the inner layer is mainly in direct contact with electrical cables, etc., for which purpose a material with better flexibility is selected, which can better contact with the internal wrapping and protect it, and a wire winding groove is also provided on the outer layer. After the wire winding groove is wrapped, the sleeve is tightened by winding a circle such as metal wire on the outer wall, so that the entire sleeve can better fit the wrapping and protect it, and the wrapped object is embedded in the preset wire winding groove, which can greatly avoid extrusion damage to the outer layer, and together with the outer layer, it constitutes a ring of the protective layer, protecting the entire sleeve from the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a compression-resistant polyimide casing;

[0016] Figure 2 This is a schematic diagram of the structure of a compression-resistant polyimide casing after cutting;

[0017] Figure 3 This is a schematic diagram of the side structure of a compression-resistant polyimide casing layer.

[0018] In the figure: 1. Casing body; 2. Wire duct; 3. Outer layer; 4. Middle layer; 5. Inner layer; 6. Coating layer. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., etc., are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Therefore, features specified as "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3 A compression-resistant polyimide casing comprises a casing body 1, which is provided with three layers. The outer layer 3 serves as a protective layer of the casing. Its main function is to resist erosion and damage to the casing by the external environment. The material is wear-resistant and corrosion-resistant polyimide to ensure that the casing can maintain its stable performance even in harsh environments. A wire winding groove 2 is also provided on the outer layer 3. The wire winding groove 2 is provided with multiple wires. When in use, metal wires are wound along the grooves to tighten the entire casing, so that the compression-resistant polyimide casing can better fit the internal packaging.

[0023] The middle layer 4 mainly provides additional strength and compressive performance for the compression-resistant polyimide casing, and adopts glass fiber reinforcement materials. These materials not only improve the compressive strength of the casing, but also enhance its overall structural stability.

[0024] The inner layer 5 is mainly in direct contact with wires and cables or other protected objects. It adopts a soft polyimide film, so that when it contacts the internal wrapping, it can be compatible with wrappings of more materials to ensure good fit and adhesion with the protected object. When the pressure-resistant polyimide sleeve needs to be cut and used, a coating layer 6 is provided at the pipe mouth of the pressure-resistant polyimide sleeve to seal the incision to prevent the incision from external erosion.

[0025] The working principle of the present invention is as follows: as shown in the figure, it includes a casing body 1, which is provided with three layers, wherein the outer layer 3 serves as a protective layer of the casing, and its main function is to resist erosion and damage to the casing by the external environment. The material is made of wear-resistant and corrosion-resistant polyimide to ensure that the casing can maintain its stable performance in harsh environments. A wire winding groove 2 is also provided on the outer layer 3. The wire winding groove 2 is provided with multiple wires. When in use, a metal wire is wound along the groove to tighten the entire casing, so that the pressure-resistant polyimide casing can better fit the internal packaging.

[0026] The middle layer 4 mainly provides additional strength and compressive performance for the compression-resistant polyimide casing, and adopts glass fiber reinforcement materials. These materials not only improve the compressive strength of the casing, but also enhance its overall structural stability.

[0027] The inner layer 5 is mainly in direct contact with wires and cables or other protected objects. It adopts a soft polyimide film, so that when it contacts the internal wrapping, it can be compatible with wrappings of more materials to ensure good fit and adhesion with the protected object. When the pressure-resistant polyimide sleeve needs to be cut and used, a coating layer 6 is provided at the pipe mouth of the pressure-resistant polyimide sleeve to seal the incision to prevent the incision from external erosion.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A compression-resistant polyimide casing, characterized by: The invention comprises a sleeve body (1), wherein a wire winding trough (2) is provided on the surface of the sleeve body (1), an outer layer (3) is installed at the bottom end of the wire winding trough (2), a middle layer (4) is provided on the inner side of the outer layer (3), and an inner layer (5) is provided on the inner side of the middle layer (4).

2. The compression-resistant polyimide sleeve according to claim 1, characterized in that: The cable trough (2) is provided with a plurality of overall corrugated lines, all of which are arranged on the outer wall of the outer layer (3), while the inner wall of the cable trough (2) is provided with metal wires and ropes.

3. The compression-resistant polyimide sleeve according to claim 1, characterized in that: The material of the outer layer (3) is wear-resistant and corrosion-resistant polyimide.

4. The compression-resistant polyimide sleeve according to claim 1, characterized in that: The middle layer (4) is a glass fiber or aramid fiber reinforced material and is connected to the inside of the outer layer (3) via an adhesive.

5. The compression-resistant polyimide sleeve according to claim 1, characterized in that: The inner layer (5) is a soft polyimide film, which is also bonded to the inside of the middle layer (4) by an adhesive.

6. The compression-resistant polyimide sleeve according to claim 1, characterized in that: A coating layer (6) is provided at the openings at both ends of the sleeve body (1). The coating layer (6) is a sealant and is coated on the incision of each sleeve body (1).

Images