Dynamic application twisted pair resistant to twist pitch change

Abstract

The invention relates to a dynamic application twisted pair resistant to twist pitch change, which relates to the technical field of communication, and comprises a twisted pair main body, a support framework and a protective sleeve. The method has the effects of stable stranding pitch change and high signal transmission quality. The outer side of the twisted-pair main body is provided with a protective sleeve, at least two groups of supporting skeletons are arranged between the twisted-pair main body and the protective sleeve at equal intervals, each supporting skeleton comprises a fitting sleeve, a transition ring, a connecting sleeve and other components, and the supporting skeletons can wrap the outer side of the twisted-pair main body under the mutual cooperation, so that the stability of the twisted structure of the twisted-pair main body is maintained; deformation and twist pitch change caused by bending movement of the twisted pair in dynamic application can be effectively prevented, and the twist pitch is kept stable, so that the signal transmission quality of the twisted pair is ensured not to be affected, and the use requirements of people are met.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a dynamically applied twisted pair cable that is resistant to twist length changes. Background Art

[0002] In the field of communications, twisted pair cables, as a common signal transmission medium, are widely used in various electronic devices and systems. The design of the twisted structure plays an important role in improving signal transmission quality and resisting external interference.

[0003] However, in dynamic application environments, such as frequent bending or movement, the twisted structure is prone to deformation, resulting in changes in the lay length, which in turn affects the quality and stability of signal transmission and the normal use of the twisted pair cable. The subsequent maintenance cost is high and it is difficult to meet people's usage needs. Summary of the Invention

[0004] The purpose of this application is to provide a twisted pair cable for dynamic applications that is resistant to twist length changes, so as to solve the problems in the above-mentioned background technology.

[0005] The present application provides a twisted pair cable for dynamic applications that is resistant to twist length changes, which adopts the following technical solution: comprising a twisted pair cable body, a protective sleeve provided outside the twisted pair cable body, and at least two sets of support frames provided at equal intervals between the twisted pair cable body and the protective sleeve; The support frame includes a fitting sleeve, a transition ring and a connecting sleeve. The fitting sleeve is fitted to the outside of the twisted pair main body, and a group of transition rings are connected to the front and rear ends. The two groups of transition rings are connected to a group of connecting sleeves on the sides away from each other.

[0006] By adopting the above technical solution, the supporting skeleton is evenly spaced and distributed on the outside of the twisted pair cable body to form a uniform mechanical support, which can effectively suppress the abnormal changes in the lay pitch of the twisted pair cable body during dynamic bending or torsion, maintain the stability of signal transmission, and cooperate with the protective sleeve to form double protection, reducing the signal fluctuation caused by the deformation of the lay pitch of the twisted pair cable body. The supporting skeleton attaches the fitting sleeve to the outside of the twisted pair cable body through the connecting sleeve, which can achieve the resistance and buffering ability to the axial stretching and radial impact of the twisted pair cable body, and ensure the stability of the lay pitch of the twisted pair cable body.

[0007] Preferably, the fitting sleeve comprises an elastic layer, a thermostatic layer and a telescopic layer. The thermostatic layer is provided on the outside of the elastic layer, and a telescopic layer is connected between two adjacent groups of the thermostatic layers.

[0008] By adopting the above technical solution, the elastic layer, the thermostatic layer and the telescopic layer form a composite structure design, which can achieve dynamic fitting and stress buffering with the twisted pair cable body, protect the twisted pair cable body, and the thermostatic layer can adapt to different temperature environments and effectively deal with the thermal expansion and contraction phenomena generated within the working temperature range.

[0009] Preferably, the protective cover includes a base layer, an outer layer, a middle layer and a buffer cavity. The outer side of the base layer is connected to the outer layer, the inner end of the base layer is provided with a middle layer near the outer side, and the inner end of the base layer is provided with a buffer cavity near the inner side.

[0010] By adopting the above technical solution, multi-layer mechanical protection can be achieved, achieving tensile, compressive and shear resistance, and having the characteristics of wear resistance, oil resistance, and anti-interference. It can prevent external impacts from being directly transmitted to the twisted pair cable body, while taking into account lightweight and flexibility, and can adapt to use in harsh environments such as industrial friction or outdoor exposure environments, thereby expanding the scope of application.

[0011] Preferably, at least two groups of brackets are provided at equal intervals on the outer side of the inner end of the buffer cavity, the inner ends of the brackets are each provided with a group of elastic frames, and at least two groups of buffer grooves are provided on the inner and outer sides of the buffer cavity.

[0012] By adopting the above technical solution, the brackets are evenly distributed in the buffer cavity to form a multi-point support frame, which can decompose the external impact force into multiple local loads, and cooperate with the elastic frame to absorb high-frequency vibration energy, improve fatigue resistance, and facilitate the rapid rebound of the protective cover, avoiding the collapse of the protective cover caused by single-point stress concentration and damage to the twisted pair cable body. The buffer groove can provide multi-directional deformation adaptability, provide additional collapse space for the protective cover, and reduce the impact on the internal twisted pair cable body.

[0013] Preferably, the corners of the bracket are all designed to be arc-shaped.

[0014] By adopting the above technical solution, damage to the inner side of the buffer cavity can be avoided.

[0015] Preferably, the elastic frame is arranged in an arc shape, and the protruding portion can contact the inner side of the bracket.

[0016] By adopting the above technical solution, the elastic frame undergoes elastic deformation when under pressure and rebounds quickly after the pressure disappears, which can help improve the fatigue resistance of the bracket.

[0017] Preferably, the middle layer is a mesh sleeve.

[0018] By adopting the above technical solution, the middle layer is a metal braided mesh, which can improve the anti-interference effect of the twisted pair cable body.

[0019] Preferably, the fitting sleeve is arranged in a spiral shape.

[0020] By adopting the above technical solution, the material is wrapped around the outside of the twisted pair main body, and the stress can be dispersed through the spiral gap when the twisted pair main body is bent.

[0021] Preferably, there are wrinkles on the surface of the expansion layer.

[0022] By adopting the above technical solution, when the twisted pair main body is transversely bent, the folds at the opposite ends of the telescopic layer can expand and contract, thereby reducing the pressure on the twisted pair main body.

[0023] Preferably, the side of the temperature-adaptive layer close to the twisted pair main body is a smooth plane.

[0024] By adopting the above technical solution, the friction between the twisted pair main body and the temperature-suitable layer is reduced, which is beneficial to the movement of the twisted pair main body.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. This application provides a support frame provided on the outside of the twisted pair cable body. The support frame comprises at least two groups of support frames, which are provided on the outside of the twisted pair cable body at equal intervals. The support frame includes components such as a fitting sleeve, a transition ring, and a connecting sleeve. The support frames can be wrapped around the outside of the twisted pair cable body in cooperation with each other. When the twisted pair cable body is in dynamic motion, the support frame can be wrapped around the twisted pair cable body to limit its position, thereby effectively preventing the twist pitch of the twisted pair cable body from changing and affecting the signal transmission quality. 2. This application provides a protective cover on the outside of the support frame. The protective cover includes a base layer, an outer layer, a middle layer, and a buffer cavity. Together, they can provide multiple protections for the twisted pair cable, meeting its requirements for anti-pull, anti-corrosion, and anti-interference, effectively expanding its scope of application. 3. The present application sets a buffer cavity at the inner end of the protective cover. The buffer cavity is set at equal intervals in the protective cover, and components such as a bracket, an elastic frame and a buffer groove are provided therein. A three-level buffer mechanism of a rigid bracket, an elastic unit and a controllable deformation groove is established, which can realize dynamic stress graded buffering and energy dispersion, while ensuring the balance between structural stability and lightweight, enhancing adaptability to the environment, and protecting the protective cover and the twisted pair cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall front view structure of this application; Figure 2 It is a schematic diagram of the supporting skeleton structure of this application; Figure 3 This is a schematic diagram of the local structure of the support frame of this application; Figure 4 It is a schematic diagram of the partial structure of the protective cover of this application; Figure 5 It is a schematic diagram of the support structure of this application; Explanation of the accompanying reference numerals: 1. twisted pair cable body; 2. supporting skeleton; 3. protective sleeve; 21. fitting sleeve; 22. transition ring; 23. connecting sleeve; 211. elastic layer; 212. temperature-adaptive layer; 213. telescopic layer; 31. base layer; 32. outer layer; 33. middle layer; 34. buffer cavity; 341. bracket; 342. elastic frame; 343. buffer groove. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0028] A twisted pair cable with dynamic application and resistance to twist length variation, Figure 1-2 , including a twisted pair main body 1, a protective cover 3 arranged on the outside of the twisted pair main body 1, and no less than two groups of support frames 2 installed at equal intervals between the twisted pair main body 1 and the protective cover 3.

[0029] Specifically, the support skeleton 2 is evenly spaced and distributed on the outside of the twisted pair cable body 1, forming a uniform mechanical support, which can effectively suppress the abnormal changes in the lay pitch of the twisted pair cable body 1 during dynamic bending or torsion, maintain the stability of signal transmission, and cooperate with the protective cover 3 to form double protection, reducing the signal fluctuation caused by the deformation of the lay pitch of the twisted pair cable body 1.

[0030] Reference Figure 2 The support frame 2 includes a fitting sleeve 21, a transition ring 22 and a connecting sleeve 23. The fitting sleeve 21 is spirally wrapped around the outside of the twisted pair main body 1, and can disperse stress through the spiral gap when the twisted pair main body 1 is bent. A group of transition rings 22 are adhered to the front and rear ends of the fitting sleeve 21, and a group of connecting sleeves 23 are fixedly connected to the side away from each other of the two groups of transition rings 22. The connecting sleeve 23 is a heat shrinkable material, such as polyolefin. After heat shrinkage, it can be tightly wrapped around the outside of the twisted pair main body 1 to fix the support frame 2.

[0031] Specifically, the support frame 2 fits the fitting sleeve 21 to the outside of the twisted pair cable body 1 through the connecting sleeve 23, which can achieve the resistance and buffering ability to the axial stretching and radial impact of the twisted pair cable body 1 and ensure the stability of the twist pitch of the twisted pair cable body 1.

[0032] Reference Figure 2-3The fitting sleeve 21 includes an elastic layer 211, a thermostatic layer 212 and a telescopic layer 213. The elastic layer 211 is made of chrome vanadium steel and is elastic and can be wrapped around the outside of the twisted pair cable body 1. The thermostatic layer 212 is adhered to the outside of the elastic layer 211. The thermostatic layer 212 is integrated with temperature compensation material to cope with thermal expansion and contraction within the working temperature range. The side of the thermostatic layer 212 close to the twisted pair cable body 1 is a smooth plane, which can reduce the friction between the twisted pair cable body 1 and the thermostatic layer 212, which is beneficial to the movement of the twisted pair cable body 1. A telescopic layer 213 is connected between two adjacent groups of thermostatic layers 212. There are wrinkles on the surface of the telescopic layer 213. When the twisted pair cable body 1 is laterally bent, the wrinkles at the opposite ends of the telescopic layer 213 can expand and contract to reduce the pressure on the twisted pair cable body 1.

[0033] Specifically, the elastic layer 211, the thermostatic layer 212 and the telescopic layer 213 form a composite structure design, which can achieve dynamic fitting and stress buffering with the twisted pair cable body 1, protect the twisted pair cable body 1, and the thermostatic layer 212 can adapt to different temperature environments and effectively deal with the thermal expansion and contraction phenomena generated within the working temperature range.

[0034] Reference Figure 4 The protective cover 3 includes a base layer 31, an outer layer 32, a middle layer 33 and a buffer cavity 34. The base layer 31 is an aramid fiber reinforced polymer, which provides tensile, compressive and shear strength to prevent external impact from being directly transmitted to the twisted pair cable body 1. The outer side of the base layer 31 is connected to the outer layer 32. The outer layer 32 is made of TPU material and has the characteristics of wear resistance, oil resistance, UV resistance, etc., providing the outermost layer protection for the protective cover 3. The inner end of the base layer 31 is provided with a middle layer 33 near the outer side. The middle layer 33 is a mesh sleeve composed of a metal woven mesh, which can improve the anti-interference effect of the twisted pair cable body 1. The inner end of the base layer 31 is provided with a buffer cavity 34 near the inner side.

[0035] Specifically, it can achieve multi-layer mechanical protection, realize tensile, compressive and shear resistance, and has the characteristics of wear resistance, oil resistance, and anti-interference. It can prevent external impacts from being directly transmitted to the twisted pair cable body 1, while taking into account lightweight and flexibility. It can adapt to the use in harsh environments such as industrial friction or outdoor exposure environment, and expand the scope of application.

[0036] Reference Figure 4-5 At least two groups of brackets 341 are provided at equal intervals on the outer side of the inner end of the buffer cavity 34. The corners of the brackets 341 are all set to be arc-shaped to avoid damage to the inner side of the buffer cavity 34. A group of elastic frames 342 are provided at the inner end of the brackets 341. The elastic frames 342 are set in an arc shape, and the protruding parts can contact the inner side of the brackets 341. The elastic frames 342 are elastically deformed when under pressure and rebound quickly after the pressure disappears, which can help improve the fatigue resistance of the brackets 341. At least two groups of buffer grooves 343 are provided on the inner and outer sides of the buffer cavity 34.

[0037] Specifically, the brackets 341 are evenly spaced in the buffer cavity 34 to form a multi-point support frame, which can decompose the external impact force into multiple local loads, and cooperate with the elastic frame 342 to absorb high-frequency vibration energy, improve fatigue resistance, and facilitate the rapid rebound of the protective cover 3, avoiding the collapse of the protective cover 3 caused by single-point stress concentration, causing damage to the twisted pair cable body 1. The buffer groove 343 can provide multi-directional deformation adaptability, provide additional collapse space for the protective cover 3, and reduce the impact on the internal twisted pair cable body 1.

[0038] The present application provides a twisted pair cable with dynamic application and resistance to twist pitch change, which is provided with a support frame 2 on the outside of the twisted pair cable body 1, and the support frame 2 has no less than two groups and is provided on the outside of the twisted pair cable body 1 at equal intervals. The support frame 2 includes components such as a fitting sleeve 21, a transition ring 22 and a connecting sleeve 23, which can be wrapped around the outside of the twisted pair cable body 1 under mutual cooperation. When the twisted pair cable body 1 is in dynamic movement, it can be wrapped and limited, which can effectively prevent the twist pitch of the twisted pair cable body 1 from changing and affecting the signal transmission quality; a protective sleeve 3 is provided on the outside of the support frame 2, and the protective sleeve 3 includes a base layer 31, an outer layer 32, a middle layer 33 and a buffer layer Components such as the punching cavity 34 can cooperate with each other to provide multiple protection effects for the twisted pair cable body 1, meet its requirements of anti-pulling, anti-corrosion and anti-interference, and can effectively expand its scope of application; by setting a buffer cavity 34 at the inner end of the protective sleeve 3, the buffer cavity 34 is evenly spaced in the protective sleeve 3, and is provided with components such as a bracket 341, an elastic frame 342 and a buffer groove 343, a three-level buffering mechanism of a rigid bracket, an elastic unit and a controllable deformation groove is established, which can realize dynamic stress graded buffering and energy dispersion, while ensuring the balance between structural stability and lightweight, enhancing adaptability to the environment, and protecting the protective sleeve 3 and the twisted pair cable body 1.

[0039] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A twisted pair cable for dynamic applications that is resistant to twist length changes, comprising a twisted pair cable body (1), characterized in that: A protective cover (3) is provided on the outside of the twisted pair main body (1), and no less than two groups of support frames (2) are provided at equal intervals between the twisted pair main body (1) and the protective cover (3); The support frame (2) comprises a fitting sleeve (21), a transition ring (22) and a connecting sleeve (23); the fitting sleeve (21) is fitted to the outside of the twisted pair main body (1); a set of transition rings (22) are connected to the front and rear ends; and a set of connecting sleeves (23) are connected to the sides of the two sets of transition rings (22) that are away from each other.

2. A twisted pair cable for dynamic applications with anti-lay length variation according to claim 1, characterized in that: The fitting sleeve (21) comprises an elastic layer (211), a thermostatic layer (212) and a telescopic layer (213); the thermostatic layer (212) is provided on the outside of the elastic layer (211); and a telescopic layer (213) is connected between two adjacent groups of the thermostatic layers (212).

3. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 1, characterized in that: The protective cover (3) comprises a base layer (31), an outer layer (32), a middle layer (33) and a buffer cavity (34); the outer side of the base layer (31) is connected to the outer layer (32); the inner end of the base layer (31) is provided with a middle layer (33) near the outer side; and the inner end of the base layer (31) is provided with a buffer cavity (34) near the inner side.

4. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 3, characterized in that: At least two groups of brackets (341) are provided at equal intervals on the outer side of the inner end of the buffer cavity (34), a group of elastic brackets (342) are provided on the inner end of each bracket (341), and at least two groups of buffer grooves (343) are provided on the inner and outer sides of the buffer cavity (34).

5. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 4, characterized in that: The corners of the bracket (341) are all designed to be arc-shaped.

6. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 5, characterized in that: The elastic frame (342) is arranged in an arc shape, and the protruding portion can contact the inner side of the bracket (341).

7. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 3, characterized in that: The middle layer (33) is a mesh sleeve.

8. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 3, characterized in that: The fitting sleeve (21) is arranged in a spiral shape.

9. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 3, characterized in that: There are wrinkles on the surface of the telescopic layer (213).

10. The twisted pair cable for dynamic applications with anti-lay length variation according to claim 8, characterized in that: The side of the temperature-adaptive layer (212) close to the twisted pair main body (1) is a smooth plane.

Images