CN218526034U

CN218526034U - Sponge tube with wear-resistant, waterproof and anti-aging functions

Info

Publication number: CN218526034U
Application number: CN202222854805.5U
Authority: CN
Inventors: 马浩然; 刘俊; 唐玉婷; 夏迎龙
Original assignee: Kunshan Chemitec Automotive Material Experts Co ltd
Current assignee: Kunshan Chemitec Automotive Material Experts Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-02-24
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a sponge pipe with wear-resisting, waterproof and aging-resisting functions, which comprises an EPDM sponge pipe body and a PET flannelette layer, wherein the PET flannelette layer is pasted on the outer wall of the EPDM sponge pipe body through an acrylic glue layer coated on an inner layer lining, the pipe wall thickness of the EPDM sponge pipe body is 5-10mm, and the thickness of the PET flannelette layer is 0.5-1.5mm. The utility model discloses combine PET cotton flannel and EPDM sponge, the fibre that interlocks each other between the PET cotton flannel increases the wearability of sponge pipe, and the EPDM material has excellent waterproof, ageing-resistant performance again, and this comprehensive properties that also improves the sponge pipe greatly makes it adapt to more complicated application environment.

Description

Sponge tube with wear-resistant, waterproof and aging-resistant functions

Technical Field

The utility model relates to an automobile wiring harness protection technical field, concretely relates to sponge pipe that possesses wear-resisting waterproof ageing-resistant function.

Background

An automotive harness is a network body of an automotive circuit, and functions by connecting electrical and electronic parts of an automobile, and there is no automotive circuit without a harness. The wiring harness is distributed all over the vehicle, if the engine is compared with the heart of the vehicle, the wiring harness is a neural network system of the vehicle and is responsible for information transmission work among various electrical parts of the whole vehicle.

The vehicle is at the in-process of traveling, and the complexity of road conditions has decided and has produced collision and friction between interior pencil and pencil, pencil and panel beating or other spare parts, and these collision and friction not only can produce the noise, influence driver and passenger's the experience of traveling, but also can cause the wearing and tearing of pencil epidermis, probably influence the partial function of vehicle, reduce the car quality, probably threaten driver and passenger's the security of the lives and property even.

At present, due to the rapid development of automobile manufacturing technology, the requirements for various parts in an automobile gradually develop towards the direction of high performance and multiple requirements, and the sponge tube is used as an important part for protecting the automobile wire harness, and the functional form of the sponge tube is more and more diversified and specialized. In different use environments in the vehicle, the side points of performance requirements of the sponge pipe are different, and the traditional sponge pipe is formed by welding a single layer of sponge, is simple in structure and has certain noise reduction performance; however, the material is soft, so that the aperture ratio of the traditional sponge tube is more than 90%, the wear-resisting strength is low, the tensile strength is low, and the sponge tube does not have waterproof performance. In the use, especially when the vibrations of service environment are comparatively violent, arouse phenomenon such as sponge pipe damage easily, the relatively poor drawback of abrasion strength has just appeared, and in the past, the phenomenon damaged appears very easily in the sponge pipe, can't provide good protection to the pencil. Therefore, designing a sponge tube which needs to be added with performances of aging resistance, wear resistance, tensile resistance and the like on the basis of the noise reduction function is a problem which needs to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be applied to the abominable position of environment such as door plant, chassis, collect and fall the function such as making an uproar, wear-resisting, ageing-resistant, stretch-proofing, can protect the novel sponge pipe that possesses wear-resisting waterproof ageing-resistant function of cable.

The utility model discloses a reach above-mentioned purpose, specifically can realize through following technical scheme:

a sponge tube with wear-resistant, waterproof and aging-resistant functions comprises an EPDM (ethylene propylene diene monomer) sponge tube body and a PET flannelette layer, wherein the PET flannelette layer is adhered to the outer wall of the EPDM sponge tube body through an acrylic rubber layer lined and coated on an inner layer, the tube wall thickness of the EPDM sponge tube body is 5-10mm, and the thickness of the PET flannelette layer is 0.5-1.5mm.

Further, the EPDM sponge tube body is made of ethylene propylene diene monomer foam, and the density is 120 +/-30 kg/m ³ The tensile strength is more than or equal to 300kpa, and the elongation at break is more than or equal to 100%.

Furthermore, the gram weight of the PET flannelette layer is 120-130 g/square meter, and the wear-resisting times is more than or equal to 1000.

The utility model discloses combine PET cotton flannel and EPDM sponge, the wearing resistance of crisscross fibre increase sponge pipe each other between the PET cotton flannel, the EPDM material has excellent waterproof, ageing-resistant performance again, this comprehensive properties that also improves the sponge pipe greatly makes it can adapt to more complicated application environment. On one hand, noise generated by friction and collision of a plurality of wire harnesses in the running process can be remarkably reduced, on the other hand, the wear-resistant, waterproof and ageing-resistant strength of the whole wire harness can be greatly increased, and the wire harness is well protected.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure, the 1-EPDM sponge tube body; 2-PET flannelette layer; 3-acrylic acid glue layer.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in figure 1, the sponge tube with wear-resistant, waterproof and aging-resistant functions of the present invention comprises an EPDM sponge tube body 1 and a PET flannelette layer 2, wherein the PET flannelette layer 2 is adhered to the outer wall of the EPDM sponge tube body 1 through an inner lining acrylic rubber layer 3, the tube wall thickness of the EPDM sponge tube body 1 is 5-10mm, and the thickness of the PET flannelette layer 2 is 0.5-1.5mm.

The utility model discloses replace traditional PU sponge for EPDM sponge pipe to glue one deck PET matte layer 2 that covers on the surface with the acrylic acid, when having increased waterproof performance for the sponge pipe, improve the wear resistance and the stretch-proofing performance of sponge pipe greatly. The bonding of EPDM sponge pipe body 1 and PET flannelette layer 2 adopts the roller spacing to be the thickness of 1 wall of EPDM sponge pipe body-2 mm, roller pressure: 500 +/-30N, so that the EPDM sponge tube body 1 and the PET flannelette layer 2 are tightly attached and attractive, and the bonding is firmer.

Preferably, the EPDM sponge tube body 1 is made of ethylene propylene diene monomer foam, and the density is 120 +/-30 kg/m ³ The tensile strength is more than or equal to 300kpa, and the elongation at break is more than or equal to 100%. The EPDM bubble is cotton has the cotton similar cell structure of PU bubble equally, has increased the excellent waterproof and ageing resistance performance of EPDM material on the basis of having remain original sound absorption and having fallen the function of making an uproar, and this application scope that has promoted the sponge pipe greatly lets the sponge pipe can be suitable for in complicated environment such as humidity, high temperature, provides better protection for the car wiring harness.

Preferably, the PET flannelette layer 2 is made of a material with the gram weight of 120-130 g/square meter and the wear-resisting times of more than or equal to 1000.

The PET flannelette has good wear resistance and excellent tensile property, and the PET flannelette is applied to the sponge tube, so that the singleness of the material of the traditional sponge tube is broken through, and the sponge tube can obtain more excellent performance.

The utility model discloses directly scribble acrylic acid with traditional sponge and glue and replace into 2 lining acrylic acid on PET cotton flannel layer and glue, improve the stretch-proofing performance of the compound sponge pipe of cotton flannel, improve the comprehensive properties of the compound sponge pipe of cotton flannel, avoided the phenomenon of disconnected sponge pipe in the pencil manufacturing process, improved the utilization ratio of sponge pipe, more improved work efficiency, practice thrift the cost.

The traditional single-layer sponge tube is soft in material and low in wear resistance; in the using process, the phenomena of sponge tube breakage and the like are easily caused. The wear test data for the conventional sponge tube are as follows:

TABLE 1

The wear-resisting strength of the sponge tube added with the PET flannelette on the surface of the utility model is obviously higher than that of the traditional sponge tube; in the using process, the phenomena of sponge tube damage and the like can be avoided. The utility model discloses a wear-resisting test data of sponge pipe is as follows 2:

TABLE 2

The specific embodiments of the present invention are only for explaining the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the present embodiment as required without inventive contribution after reading the present specification, but all the embodiments are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The sponge tube with the wear-resistant, waterproof and aging-resistant functions is characterized by comprising an EPDM sponge tube body (1) and a PET flannelette layer (2), wherein the PET flannelette layer is adhered to the outer wall of the EPDM sponge tube body through an acrylic rubber layer (3) lined and coated on the inner layer, the tube wall thickness of the EPDM sponge tube body is 5-10mm, and the thickness of the PET flannelette layer is 0.5-1.5mm.

2. The sponge tube with abrasion, water and aging resistant functions as claimed in claim 1, wherein the EPDM sponge tube body is made of EPT rubber foam with a density of 120 ± 30kg/m ³ The tensile strength is more than or equal to 300kpa, and the elongation at break is more than or equal to 100%.

3. The sponge tube with abrasion, water and aging resistant functions as claimed in claim 1, wherein the gram weight of the PET flannelette layer is 120-130 g/square meter, and the abrasion resistance times is not less than 1000.