Elastic tube with anti-breaking isolating layer
By using a three-layer structure design and a honeycomb foam material as the intermediate insulating layer, the problem of elastic tube breakage caused by external wear is solved, improving service life and safety, and realizing the stability and safety reminder function of the elastic tube.
Patent Information
- Application Number
- CN202423090710.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing elastic tubes are prone to breakage due to external wear during prolonged use, posing safety hazards and having a short service life.
It adopts a three-layer structure design, with an inner elastic tube, a middle isolation layer and an outer protective tube integrally molded. The middle isolation layer is made of honeycomb foam material to absorb and disperse external forces. The outer protective tube reminds the user to stop using it when it breaks. The overall strength and stability are improved by the inner and outer layers of the same material.
It effectively prevents the inner elastic tube from breaking due to external stress, extends its service life, and reminds users of safe use through a color-coded layer, thus improving the safety and durability of the elastic tube.
Smart Images

Figure CN223494027U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of elastic tube technology, and in particular to elastic tubes with a breakage-resistant insulating layer. Background Technology
[0002] Traditional resistance bands are widely used in sports equipment, fitness equipment, and medical devices, primarily to provide stable resistance and tensile properties. These products are widely used in home workouts, gyms, and rehabilitation therapy due to their portability and efficiency. However, with increasing usage frequency and technological advancements, the demands for durability and safety of resistance bands are also rising.
[0003] Existing elastic tubes typically employ a single- or double-layer structure, primarily enhancing product performance by selecting high-strength elastic materials. Common solutions include: firstly, using thicker tube walls to strengthen the structure; secondly, adding wear-resistant coatings to improve surface abrasion resistance; and thirdly, using composite materials to combine the advantages of different materials. While these methods improve the service life of elastic tubes to some extent, they cannot completely solve the problem of overall breakage due to external wear.
[0004] In existing elastic tubes, during prolonged use, especially when subjected to external wear, the outer layer defects can extend into the tube along its diameter, eventually leading to complete breakage. This phenomenon not only shortens the lifespan of the elastic tube but may also pose safety hazards during use. Therefore, existing elastic tube structures have significant shortcomings in preventing complete breakage caused by external damage. Utility Model Content
[0005] To overcome the above problems, this application provides an elastic tube with a breakage-resistant insulating layer.
[0006] This application provides a spring tube with a breakage-resistant insulating layer, using the following technical solution:
[0007] Elastic tubes with anti-breakage insulation layer, including
[0008] Inner elastic tube;
[0009] An intermediate isolation layer is disposed on the outer periphery of the inner elastic tube;
[0010] An outer protective tube is disposed on the outer periphery of the intermediate isolation layer to resist wear and damage from the external environment;
[0011] The inner elastic tube, the intermediate isolation layer, and the outer protective tube are integrally formed. The intermediate isolation layer is made of honeycomb foam material and is a color-developing layer.
[0012] By adopting the above technical solution, the inner elastic tube provides excellent elasticity and resilience, making it suitable for applications requiring frequent stretching. The intermediate isolation layer effectively prevents the inner elastic tube from breaking or being damaged due to external stress during use. Specifically, when the outer protective tube breaks, if the user continues to stretch the elastic tube, the honeycomb foam material, subjected to external force, undergoes a certain degree of elastic deformation, absorbing and dispersing the external force energy, thus forming a barrier to prevent the breakage of the outer protective tube from being directly transmitted to the inner elastic tube, causing it to rupture. Furthermore, because the intermediate isolation layer is a color-changing layer, its color differs from both the inner elastic tube and the outer protective tube. When the outer protective tube breaks and the color of the intermediate isolation layer is clearly visible, it alerts the user to stop using the tube, further enhancing the safety of the elastic tube.
[0013] Optionally, both the inner elastic tube and the outer protective tube are made of highly elastic materials.
[0014] By adopting the above technical solution, both the inner elastic tube and the outer protective tube are made of highly elastic materials, which can significantly improve the overall elasticity and recovery performance of the elastic tube, enabling it to quickly return to its original shape when subjected to large tension, thereby extending its service life.
[0015] Optionally, the inner elastic tube, the intermediate isolation layer, and the outer protective tube are all made of latex material.
[0016] By adopting the above technical solution, the inner elastic tube, the middle isolation layer and the outer protective tube are all made of latex. The three-layer structure uses the same material, which can ensure that the material is evenly distributed when under stress, avoid stress concentration caused by different materials, and help improve the overall strength and stability of the elastic tube.
[0017] In summary, the present invention provides a spring tube with a breakage-resistant insulating layer, which has at least one of the following beneficial technical effects:
[0018] 1. The inner elastic tube provides excellent elasticity and resilience, making it suitable for applications requiring frequent stretching. The intermediate isolation layer effectively prevents the inner elastic tube from breaking or being damaged due to external stress during use. Specifically, when the outer protective tube breaks, if the user continues to stretch the elastic tube, the honeycomb foam material undergoes elastic deformation under external force, absorbing and dispersing the energy, thus forming a barrier to prevent the breakage of the outer protective tube from being directly transmitted to the inner elastic tube and causing it to rupture. Furthermore, because the intermediate isolation layer is a color-coded layer, its color differs from both the inner and outer protective tubes. When the outer protective tube breaks and the color of the intermediate isolation layer is clearly visible, it alerts the user to stop using the elastic tube, further enhancing its safety.
[0019] 2. The inner elastic tube, the middle isolation layer and the outer protective tube are all made of latex. The three-layer structure uses the same material, which can ensure that the material is evenly distributed when under stress, avoid stress concentration caused by different materials, and help improve the overall strength and stability of the elastic tube. Attached Figure Description
[0020] Figure 1 A schematic diagram of the structure of the elastic tube with a breakage-resistant isolation layer provided in this embodiment of the utility model;
[0021] Figure 2 A half-sectional view of an elastic tube with a breakage-resistant insulating layer provided in an embodiment of this utility model;
[0022] Figure 3 A cross-sectional view of an elastic tube with a breakage-resistant isolation layer provided in an embodiment of this utility model.
[0023] Explanation of the markings in the image:
[0024] 11. Inner elastic tube; 12. Middle isolation layer; 13. Outer protective tube. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0026] Combination Figure 1 and Figure 2 This application discloses an elastic tube with a breakage-resistant insulating layer, comprising: an inner elastic tube 11, a middle insulating layer 12, and an outer protective tube 13. The middle insulating layer 12 is disposed on the outer periphery of the inner elastic tube 11; the outer protective tube 13 is disposed on the outer periphery of the middle insulating layer 12 to resist wear and damage from the external environment. Both the inner elastic tube 11 and the outer protective tube 13 are made of highly elastic materials.
[0027] In this embodiment, the material of the inner elastic tube 11 can be either natural rubber or synthetic rubber, and this embodiment does not impose a specific limitation. The main function of the inner elastic tube 11 is to provide stable resistance and tensile properties. Natural rubber has good elasticity and wear resistance, making it suitable for long-term use; synthetic rubber, on the other hand, can have its chemical composition adjusted as needed to obtain specific properties.
[0028] The outer protective tube 13 can be made of natural rubber or synthetic rubber, and its thickness is determined according to the specific application. The main function of the outer protective tube 13 is to resist physical damage from the external environment, such as wear and scratches.
[0029] Combination Figure 2 and Figure 3Specifically, the intermediate insulating layer 12 is made of honeycomb foam material and is disposed on the outer periphery of the inner elastic tube 11. It should be noted that the intermediate insulating layer 12 can be honeycomb foam latex. When the outer protective tube 13 breaks, because the intermediate insulating layer 12 is made of honeycomb foam latex, when the user continues to stretch the elastic tube, the honeycomb foam latex undergoes a certain elastic deformation under external force, absorbing and dispersing the external force energy, thus forming a barrier to prevent the breakage of the outer protective tube 13 from being directly transmitted to the inner elastic tube 11, causing the inner elastic tube 11 to break. Furthermore, on a macroscopic level, because the honeycomb foam material is composed of countless tiny honeycomb units, these units are interconnected through certain connecting structures to form a whole. This allows the intermediate insulating layer 12 to disperse and transmit stress when subjected to external force. Simultaneously, when the honeycomb foam material tears, due to the presence of the honeycomb units, there are many tiny interfaces and connection points inside the material. These interfaces and connection points easily become the starting point or turning point of the crack during the tearing process. Therefore, the crack will be affected by these interfaces and connection points during the propagation process, resulting in deflection or bifurcation, which in turn makes the tear propagation process more difficult, thus preventing the intermediate isolation layer 12 from breaking in a straight line when it tears.
[0030] Since the middle isolation layer 12 is a color-developing layer, the middle isolation layer 12 is different in color from the inner elastic tube 11 and the outer protective tube 13. When the outer protective tube 13 breaks and the user can clearly see the color of the middle isolation layer 12, it can remind the user to stop using it, thereby further improving the safety of the elastic tube.
[0031] More specifically, the inner elastic tube 11, the middle isolation layer 12, and the outer protective tube 13 are integrally formed.
[0032] The inner elastic tube 11, the intermediate isolation layer 12, and the outer protective tube 13 are integrally molded, which significantly improves the overall strength of the elastic tube. This increased strength makes the elastic tube more stable when subjected to external forces or pressure, and less prone to deformation or breakage. At the same time, the tight bonding between the layers reduces gaps and potential failure points between the layers, eliminates weak links between the layers, improves the overall performance of the elastic tube, effectively prevents separation or slippage between the layers, and thus extends the service life of the elastic tube.
[0033] The inner elastic tube 11, the middle isolation layer 12, and the outer protective tube 13 are all made of latex. Since all three tubes are made of the same material, they have the same physical and chemical properties. This makes the performance of each layer more consistent when the elastic tube is subjected to external forces and pressure, thereby improving the overall stability.
[0034] Through a multi-layered structural design, the inner elastic tube 11 provides elasticity and flexibility, the middle isolation layer 12 provides isolation, and the outer protective tube 13 protects against damage from the external environment. This structural design enables the elastic tube to exhibit excellent wear resistance and fracture resistance under complex working conditions. Furthermore, due to the middle isolation layer 12, when the outer protective tube 13 breaks, the middle isolation layer 12 provides isolation. That is, when the outer protective tube 13 breaks, if the user continues to stretch the elastic tube, the middle isolation layer 12 undergoes elastic deformation during stretching, dispersing the tensile force of the outer protective tube 13 and preventing the tensile force at the break point of the outer protective tube 13 from extending to the inner elastic tube 11, thereby further increasing the service life of the elastic tube.
[0035] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.
Claims
1. A spring tube with a breakage-resistant insulating layer, characterized in that, include: Inner elastic tube (11); An intermediate isolation layer (12) is disposed on the outer periphery of the inner elastic tube (11); The outer protective tube (13) is disposed on the outer periphery of the intermediate isolation layer (12) to resist wear and damage from the external environment; The inner elastic tube (11), the intermediate isolation layer (12) and the outer protective tube (13) are integrally formed. The intermediate isolation layer (12) is a honeycomb foam material and a color-developing layer, which is used to make the color of the intermediate isolation layer (12) visible when the outer protective tube (13) breaks.
2. The elastic tube with a breakage-resistant insulating layer according to claim 1, characterized in that, Both the inner elastic tube (11) and the outer protective tube (13) are made of highly elastic materials.
3. The elastic tube with a breakage-resistant insulating layer according to claim 1, characterized in that: The inner elastic tube (11), the intermediate isolation layer (12), and the outer protective tube (13) are all made of latex.