CN-224229458-U - Silica gel tube with high compression resistance

Abstract

The utility model belongs to the technical field of silicone tubes, and particularly relates to a silicone tube with high compression resistance, which comprises a silicone tube layer, wherein a snake-shaped spiral spring is arranged in the silicone tube layer, the snake-shaped spiral spring consists of a plurality of straight sections and bending parts for connecting the straight sections, the whole snake-shaped spiral spring is bent into a spiral shape around the axis of the silicone tube layer, the bending parts of the snake-shaped spiral spring are arranged in the radial direction of the silicone tube layer, and the outer wear-resistant layer is wound and wrapped on the outer side of the silicone tube layer. Because the serpentine coil spring comprises a plurality of continuous bending sections, and every bending section all sets up along the radial of silicone tube layer, this kind of design makes serpentine spring can follow the increase of silicone tube internal pressure, takes place natural radial deformation when the pipeline diameter increases to adapt to the radial variation of pipeline better.

Inventors

• WANG CHAO
• ZHAO DONGJIANG
• LI QIAORONG

Assignees

• 青岛玄海医疗科技有限公司

Dates

Publication Date

20260512

Application Date

20250627

Claims (5)

1. 1. The high-pressure-resistance silicone tube is characterized by comprising a silicone tube layer (1), wherein a snake-shaped spiral spring (2) is arranged in the silicone tube layer (1), the snake-shaped spiral spring (2) is composed of a plurality of straight sections and bending parts connected with the straight sections, the whole snake-shaped spiral spring (2) is bent into a spiral shape around the axis of the silicone tube layer (1), the bending parts of the snake-shaped spiral spring (2) are arranged in the radial direction of the silicone tube layer (1), and an outer wear-resistant layer (4) is wrapped on the outer side of the silicone tube layer (1).
2. 2. The silicone tube with high compression resistance according to claim 1, wherein the lower limit of the distance between the serpentine coil spring (2) and the outer side surface of the silicone tube layer (1) is not smaller than the lower limit of the distance between the serpentine coil spring (2) and the inner side surface of the silicone tube layer (2) is not smaller than the lower limit of the distance between the serpentine coil spring and the inner side surface of the silicone tube layer (1).
3. 3. The high-pressure-resistance silicone tube of claim 1, wherein a woven mesh layer (3) is arranged in the silicone tube layer (1) on the inner side of the serpentine coil spring (2), the axis of the woven mesh layer (3) is collinear with the axis of the silicone tube layer (1), and the woven mesh layer (3) is a nylon fiber net.
4. 4. A strong compression resistant silicone tube as set forth in claim 1 wherein said outer wear resistant layer (4) comprises a tensile substrate (41), a wear resistant surface layer (42) and an adhesive layer (43), said tensile substrate (41) is a polyester fiber mesh, said wear resistant surface layer (42) is an epoxy resin coating added with silicon carbide particles, said wear resistant surface layer (42) is sprayed on the surface of said tensile substrate (41).
5. 5. A strong compression resistant silicone tube as set forth in claim 4 wherein said adhesive layer (43) is coated on the side of the tensile substrate (41) facing away from the wear resistant layer (42) and the adhesive layer (43) is of polyurethane glue construction.

Description

Silica gel tube with high compression resistance Technical Field The utility model belongs to the technical field of silicone tubes, and particularly relates to a silicone tube with high compression resistance. Background Silicone tubes, which are an important hose material, are widely used in various fields of medical treatment, food, chemical industry, machinery, etc. because of their excellent flexibility, chemical corrosion resistance, biocompatibility and high temperature resistance. However, the structural stability and compression resistance of silicone tubing when subjected to high internal pressures are critical factors limiting the range of applications. In order to improve the compression resistance of the silicone tube, the traditional technology generally adopts a mode of increasing the thickness of the tube wall, internally arranging a spiral steel ring and using a composite material. Wherein, set up spiral steel ring in the silicone tube inside, can show its compressive property that improves. The spiral steel ring can limit the expansion of the silicone tube in the radial direction, so that the stability of the pipeline structure is maintained. However, the rigidity of the spiral steel ring is high, and the excessive rigidity makes the spiral spring difficult to adapt to the deformation requirement of the silicone tube under different pressures, namely, when the internal pressure of the silicone tube changes, the spiral spring and the silicone tube cannot be synchronously deformed, so that gaps or stress concentration occur at the interface between the two, and the long-term stability and the service life of the silicone tube are affected. Disclosure of utility model Aiming at the problems, the utility model aims to provide the silica gel tube with high compression resistance, and solve the problem that when the compression resistance of the traditional silica gel tube is increased by the spiral steel ring, the spiral spring is difficult to adapt to the deformation requirements of the silica gel tube under different pressures due to overlarge rigidity. In order to achieve the above purpose, the technical scheme is that the silica gel tube with high compression resistance comprises a silica gel tube layer, wherein a snake-shaped spiral spring is arranged in the silica gel tube layer and consists of a plurality of straight sections and bending parts for connecting the straight sections, the whole snake-shaped spiral spring is bent into a spiral shape around the axis of the silica gel tube layer, the bending parts of the snake-shaped spiral spring are arranged in the radial direction of the silica gel tube layer, and the outer wear-resistant layer is wrapped on the outer side of the silica gel tube layer in a winding mode. The utility model has the beneficial effects that as the serpentine coil spring consists of a plurality of continuous bending sections and each bending section is arranged along the radial direction of the silica gel tube layer, the serpentine spring can naturally and radially deform when the diameter of the pipeline is increased along with the increase of the internal pressure of the silica gel tube, so that the serpentine coil spring is better suitable for the radial change of the pipeline. In order to effectively prevent external liquid from entering the gap between the serpentine coil spring and the silica gel tube layer; As a further improvement of the technical scheme, the lower limit of the distance between the serpentine coil spring and the outer side surface of the silicone tube is not smaller than the mm of the serpentine coil spring, and the lower limit of the distance between the serpentine coil spring and the inner side surface of the silicone tube is not smaller than the mm of the serpentine coil spring. The improved structure has the beneficial effects that a certain distance is kept between the serpentine coil spring and the inner wall and the outer wall of the silica gel tube layer, so that the serpentine coil spring is prevented from being exposed on the outer side of the silica gel tube layer, and external liquid is prevented from entering a gap between the serpentine coil spring and the silica gel tube layer to corrode the serpentine coil spring. In order to further improve the pressure resistance of the silicone tube layer; As a further improvement of the technical scheme, a woven mesh layer is arranged in the silica gel tube layer at the inner side of the serpentine spiral spring, the axis of the woven mesh layer is collinear with the axis of the silica gel tube layer, and the woven mesh layer is a nylon fiber net. The improved structure has the beneficial effects that the woven mesh layer can effectively strengthen the structural strength and the wear resistance of the silicone tube layer, and simultaneously prevent the silicone tube layer from being scratched or punctured in the use process. In order to effectively ensure the pressure resistance of the