A corrosion-resistant flexible control cable

Abstract

The present invention relates to the field of control cable technology, specifically a corrosion-resistant flexible control cable, including a control cable protective sleeve, a driving component, a convex ring component and a cable core conductor. The convex ring component forms a serrated structure on the inner wall of the protective sleeve, and the deformation cavity enclosed by adjacent convex ring components is filled with water-blocking paste, which improves the flexibility of the cable through the buffering of the valley deformation cavity and supports the convex ring to enhance the pressure and puncture resistance; the driving component drives the convex ring component to slide back and forth along the axial direction, so that the valley and peak positions of the serrated structure alternate, disperses the stress during high-frequency bending, avoids concentrated force rupture in the valley, and extends the life of the protective sleeve. In addition, the water-blocking paste is filled in the valley, which can balance the bending radius and strengthen the sealing protection, and is constrained by the separation of the supporting convex ring to prevent aggregation and loss, thereby ensuring stable protection performance. Through structural innovation, the cable achieves a balance and improvement in flexibility, pressure resistance, corrosion resistance and long-term protection capabilities in high-frequency bending scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of control cables, and in particular to a corrosion-resistant flexible control cable. Background Art

[0002] Control cable usage scenarios often involve frequent dynamic displacement or reciprocating motion, such as the linkage of robotic arms in industrial automation equipment, the vibration of cables in rail transit vehicles, and the adjustment of wiring within precision instruments as components move. Under these conditions, cables must repeatedly withstand mechanical stresses such as bending and twisting. Insufficient flexibility can easily lead to fatigue fracture of internal conductors, cracking of the insulation layer, or wear of the shielding layer, which can cause signal transmission interruptions, insulation failure, or degradation of electromagnetic shielding performance, ultimately affecting the stability and safety of the control system. Improving flexibility can enhance the cable's tolerance to high-frequency bending, reduce the risk of mechanical damage, and ensure its continued and reliable transmission of electrical signals or control commands in dynamic environments.

[0003] In Chinese patent 202410130569.3, the invention relates to the field of cable technology and provides a bend-resistant aluminum alloy control signal cable, which includes an outer protective sheath, an outer shielding layer, a tape layer, an external bend-resistant component, several aluminum alloy cable cores and an internal bend-resistant multilayer film from the outside to the inside; the outer protective sheath is composed of a wear-resistant layer, a corrosion-resistant layer and an insulation layer from the outside to the inside; the external bend-resistant component is a carbon fiber / epoxy resin composite; the external bend-resistant component is cylindrical; the external bend-resistant component is evenly distributed between the aluminum alloy cable cores; the aluminum alloy cable core is coated with an internal bend-resistant multilayer film; the internal bend-resistant multilayer film is composed of a single layer of polyethylene and a single layer of polyimide periodically alternating; the periodic alternation number n is: 2≤n≤7; the outermost layer of the internal bend-resistant multilayer film is a single layer of polyimide, and the innermost layer is a single layer of polyethylene.

[0004] The conductor and the outermost protective sheath are the two major factors that affect the flexibility of the cable. In the existing technology, the design of improving the flexibility of the outer protective sheath of the control cable faces a dilemma: when the thickness of the protective sheath increases, although it can effectively improve its protective properties such as wear resistance and tear resistance, the increased rigidity of the material leads to a significant decrease in the overall flexibility of the cable, which cannot meet the needs of high-frequency bending; and when the thickness of the protective sheath decreases, although the flexibility of the cable is improved, it is difficult to withstand the mechanical stress generated by long-term high-frequency bending, and material fatigue and even rupture are prone to occur in the bending area. In order to take into account the flexibility and wear resistance of the cable, some technologies set the inner wall of the cable protective sheath to a serrated shape or arrange two types of support and elastic materials at intervals. However, every time the cable is bent in this way, the bending force points are concentrated on the valley of the serrated structure or the elastic material. Over time, these positions are more susceptible to wear and rupture. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of being difficult to simultaneously take into account the flexibility and wear resistance of the outer protective sheath of the cable, and the force points of each bend are concentrated in certain specific positions, which easily leads to damage at the bends. For this reason, we propose a corrosion-resistant flexible control cable.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: a corrosion-resistant flexible control cable, comprising: a control cable protective sleeve, a plurality of driving components are arranged at equal intervals inside the control cable protective sleeve, and a plurality of convex ring components are arranged along the same axis in the interval area formed between adjacent driving components, and the convex ring components are arranged adjacent to each other, adopting a clearance fit design, and can rotate relative to each other, and the enclosure between adjacent convex ring components forms a deformation cavity, the interior of the deformation cavity is filled with water-blocking paste, the convex ring component is slidably connected to the control cable protective sleeve, the driving component can carry the convex ring component to slide back and forth in the axial direction inside the control cable protective sleeve, and the length of each sliding distance is half of the axial width of the convex ring component, the interior of the convex ring component is penetrated by a cable winding layer, and the convex ring component and the cable winding layer are slidably connected.

[0007] Preferably, the convex ring assembly includes a supporting convex ring, the top of the supporting convex ring is provided with a convex ring top surface, and the convex ring top surface is gap-matched with the inner wall of the control cable protective sleeve, and the gap is filled with lubricating oil, and the bottom of the supporting convex ring is provided with a convex ring bottom surface, the convex ring bottom surface is gap-matched with the outer wall of the cable sheath, and the gap is filled with lubricating oil.

[0008] Preferably, convex ring inclined surfaces are symmetrically provided on both sides of the supporting convex ring, and the convex ring inclined surfaces are gradually inclined inward from top to bottom, and two adjacent groups of convex ring inclined surfaces form a deformation cavity with a triangular cross section.

[0009] Preferably, a chamfered surface is provided at the connection between the convex ring inclined surface and the convex ring top surface, and the cross section of the chamfered surface is arranged to be an arc shape.

[0010] Preferably, the driving component includes a fixing ring, which is fixedly connected to the inner wall of the control cable protective sleeve, and the fixing ring is coaxially sleeved on the outside of the cable sheath, and the inner diameter of the fixing ring is larger than the outer diameter of the cable sheath.

[0011] Preferably, a force storage spring is fixedly connected to the side of the fixing ring, and a driving ring is fixedly connected to one end of the force storage spring away from the fixing ring. The driving ring is coaxially sleeved on the outside of the cable wrapping layer, and the driving ring and the cable wrapping layer are slidably connected.

[0012] Preferably, a snap ring is provided on the side of the driving ring, and the cross-sectional shape of the snap ring is set to be semicircular.

[0013] Preferably, a connecting strip is fixedly connected to the side of the driving ring away from the force storage spring, the shape of the connecting strip is set to be spiral, and the connecting strip is inserted into the inside of the supporting convex ring, and the connecting strip and the supporting convex ring are slidingly connected.

[0014] Preferably, it further comprises a cable core conductor, wherein a plurality of cable core conductors are twisted together to form a single cable core, and each cable core is wrapped with an insulating layer.

[0015] Preferably, a shielding layer is provided on the outside of the insulating layer, a gap between the shielding layer and the insulating layer is filled with a filler, and a cable wrapping layer is wrapped on the outside of the shielding layer.

[0016] The technical effects and advantages of the present invention are as follows: 1. In the present invention, by controlling the adjacent arrangement of the serrated convex ring components on the inner wall of the cable protective sleeve and being relatively rotatable, the flexibility of the protective sleeve is improved by utilizing the deformation buffer of the valley deformation cavity while maintaining the thickness of the protective sleeve, and the pressure resistance and puncture resistance are enhanced by means of the supporting skeleton of the supporting convex ring, thereby avoiding the performance imbalance caused by simply increasing or decreasing the thickness; at the same time, a driving component is designed to drive the convex ring component to slide back and forth along the axial direction, so that the positions of the valley and the peak of the serrated structure are dynamically alternated, and the stress is dispersed by changing the distribution of the force points, thereby solving the problem that the valley of the traditional fixed serrated structure is prone to concentrated force and cracking due to high-frequency bending, thereby extending the service life of the protective sleeve. 2. The present invention fills the deformation cavity, i.e., the serrated valley, with water-blocking paste and uses the supporting convex ring to form a partition. The flexible filling of the water-blocking paste balances the bending radius of each valley and strengthens the sealing protection of the weak points, and the physical partition prevents the water-blocking paste from accumulating and losing, thereby ensuring the consistency and reliability of the protective performance. The synergistic effect of these innovations ultimately enables the cable to possess the combined advantages of excellent flexibility, pressure resistance, corrosion resistance and long-term protection capabilities in high-frequency bending scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components: Figure 1 It is a schematic cross-sectional structural diagram of the integral convex ring assembly of the present invention in the pushed-out state; Figure 2 It is a schematic cross-sectional view of the integral convex ring assembly of the present invention in a retracted state; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention as a whole; Figure 4 This is a schematic diagram of the three-dimensional structure inside the protective cover of the control cable of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the convex ring assembly and the deformation cavity portion of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the convex ring assembly of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the driving component part of the present invention; Figure 8 for Figure 1Schematic diagram of the enlarged structure at A in the middle; Figure 9 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0018] Legend: 1. Control cable protective sleeve; 2. Convex ring assembly; 3. Deformation cavity; 4. Driving assembly; 5. Cable wrapping layer; 6. Cable core conductor; 7. Insulation layer; 8. Filler; 9. Shielding layer; 201. Supporting convex ring; 202. Convex ring inclined surface; 203. Chamfered surface; 204. Convex ring top surface; 205. Convex ring bottom surface; 401. Fixed ring; 402. Force storage spring; 403. Driving ring; 404. Connecting strip; 405. Snap ring. DETAILED DESCRIPTION

[0019] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0020] Reference Figures 1 to 3 As shown, the present invention provides a technical solution: a corrosion-resistant flexible control cable, including a cable core conductor 6, the cable core conductor 6 is used to transmit current or signals, a plurality of cable core conductors 6 are twisted to form a single cable core, and each cable core is wrapped with an insulating layer 7. The insulating layer 7 is wrapped around the outside of the cable core conductor 6 by an extrusion process to prevent the cable core conductor 6 from short-circuiting with the outside or between adjacent conductors, ensuring that the current or signal is transmitted only in the cable core conductor 6. At the same time, the insulating layer 7 is wrapped around the outside of the cable core conductor 6 to isolate moisture, dust, chemicals, etc., to prevent the cable core conductor 6 from being corroded or damaged. The sleeve is provided with a shielding layer 9, which is woven into a mesh by metal wires, which can take into account both shielding efficiency and flexibility, and is used to prevent external electromagnetic signals from interfering with the transmission signal in the cable. The gap between the shielding layer 9 and the insulating layer 7 is filled with a filler 8, which is used to keep the multi-core cable in a circular cross-section to avoid deformation of the internal structure of the cable due to twisting or extrusion. The outside of the shielding layer 9 is wrapped with a cable wrapping layer 5, which is used to ensure the tightness of the internal structure to avoid loosening or wrinkling. The cable wrapping layer 5 is formed by a wrapping machine that spirally wraps the strip material around the outer layer of the shielding layer 9.

[0021] The outermost protective sheath of the cable is a key factor affecting the flexibility of the cable. Under the condition of the same material, the thickness of the protective sheath becomes an important factor affecting its flexibility. Although thinner protective sheaths are more flexible and suitable for scenes that require frequent bending and movement, they have weaker pressure resistance and impact resistance, and are easily damaged by external squeezing or friction, reducing the protection of the internal structure. Although thicker protective sheaths can significantly improve the pressure resistance, puncture resistance and wear resistance, the thicker protective sheaths have increased material usage and increased overall rigidity. When bending, they need to overcome greater internal stress in the material, resulting in decreased cable flexibility, and may even crack due to excessive stretching or squeezing during repeated bending. In order to achieve a balance between flexibility and protective performance in the design of the protective sheath thickness, the present invention makes the following improvements: Please refer to Figure 1 、 Figure 4 and Figure 5 and Figure 6 As shown, the outermost layer of the entire cable is provided with a control cable protective sleeve 1, and a convex ring assembly 2 is provided inside the control cable protective sleeve 1. The convex ring assemblies 2 are arranged adjacent to each other and adopt a clearance fit design so that they can rotate relative to each other. The convex ring assembly 2 includes a supporting convex ring 201, and a convex ring top surface 204 is provided on the top of the supporting convex ring 201. Convex ring inclined surfaces 202 are symmetrically provided on both sides of the supporting convex ring 201. The convex ring inclined surfaces 202 gradually incline inward from top to bottom. Two adjacent groups of convex ring inclined surfaces 202 form a deformation cavity 3 with a triangular cross section. A chamfered surface 203 is provided at the connection between the convex ring inclined surface 202 and the convex ring top surface 204. The cross section of the chamfered surface 203 is set to be an arc shape. The arc-shaped chamfered surface 203 is used to ensure the smoothness of the relative rotation between each convex ring assembly 2.

[0022] The adjacently arranged and relatively rotatable convex ring components 2 form a serrated structure on the inner wall of the control cable protective sleeve 1. The unique morphological design can cleverly balance the flexibility and pressure resistance of the cable. The serrated structure can provide a deformation buffer space for the protective sleeve through the deformation cavity 3 formed between the serrated structures under the premise that the thickness of the protective sleeve remains certain. When the cable bends, the convex ring inclined surfaces 202 can shift with each other, compressing the space of the deformation cavity 3, reducing the overall rigidity to the bending. The resistance, thereby retaining or even improving the flexibility of the cable, avoids the problem of flexibility reduction caused by simply thickening the protective sleeve; on the other hand, the supporting convex ring 201 in the serrated structure forms a supporting skeleton similar to a reinforcing rib, which can disperse external pressure, so that the control cable protective sleeve 1 is not easy to collapse as a whole when subjected to extrusion and collision, thereby enhancing the pressure resistance and puncture resistance against external forces, and avoiding the pressure resistance and puncture resistance caused by simply thinning the control cable protective sleeve 1. The reduction in bending flexibility is ultimately achieved while ensuring the protection strength.

[0023] In order to take into account both flexibility and pressure resistance, some existing technologies also have a serrated structure on the inner wall of the protective sheath. However, during the high-frequency bending process of the cable, the valley of the serrated structure on the inner wall of the outermost protective sheath is a weak point of stress concentration and material fatigue. When the cable is repeatedly bent, the protective sheath will produce periodic tensile and compressive deformations with the bending. Due to the shape limitation of the serrated valley, the tensile stress on the inner material of the serrated valley is much greater than that on the tooth top and smooth area during bending, and the curvature radius of the valley corner is small, resulting in continuous accumulation of stress here; at the same time, the reciprocating deformation caused by high-frequency bending will continuously consume the material's fatigue resistance, causing the valley material to gradually lose its toughness due to the accumulation of microscopic damage, and eventually cracks will appear from the valley under the action of continuous stress and gradually expand into rupture. In order to solve this problem, the present application makes the following improvements based on adding a serrated structure to the inner wall of the cable protective sheath: Please refer to Figure 1 、 Figure 7 、 Figure 8 and Figure 9 As shown, a number of driving components 4 are arranged at equal intervals inside the control cable protective sleeve 1, and a number of convex ring components 2 are arranged along the same axial direction in the interval area formed between adjacent driving components 4. The convex ring component 2 is slidably connected to the control cable protective sleeve 1, and the driving component 4 can carry the convex ring component 2 to slide back and forth along the axial direction inside the control cable protective sleeve 1, and the length of each sliding distance is half of the axial width of the convex ring component 2. The interior of the convex ring component 2 is penetrated by a cable winding layer 5, and the convex ring component 2 is slidably connected to the cable winding layer 5, and the convex ring top surface 204 is gap-matched with the inner wall of the control cable protective sleeve 1, and the gap is filled with lubricating oil to reduce the friction between the convex ring top surface 204 and the inner wall of the control cable protective sleeve 1, and the bottom of the supporting convex ring 201 is provided with a convex ring bottom surface 205, and the convex ring bottom surface 205 is gap-matched with the outer wall of the cable winding layer 5, and the gap is filled with lubricating oil to reduce the friction between the convex ring bottom surface 205 and the outer wall of the cable winding layer 5.

[0024] The driving component 4 includes a fixing ring 401, which is fixedly connected to the inner wall of the control cable protective sleeve 1, and the fixing ring 401 is coaxially sleeved on the outside of the cable sheath 5, and the inner diameter of the fixing ring 401 is larger than the outer diameter of the cable sheath 5, and the side of the fixing ring 401 is fixedly connected to a force storage spring 402, and the end of the force storage spring 402 away from the fixing ring 401 is fixedly connected to a driving ring 403, and the driving ring 403 is coaxially sleeved on the outside of the cable sheath 5, and the driving ring 403 is slidingly connected to the cable sheath 5, and a snap ring 405 is provided on the side of the driving ring 403, and the cross-sectional shape of the snap ring 405 is set to be semicircular, and the side of the driving ring 403 away from the force storage spring 402 is fixedly connected to a connecting strip 404, and the shape of the connecting strip 404 is set to be spiral, and the connecting strip 404 is inserted into the inside of the support protrusion ring 201, and the connecting strip 404 is slidingly connected to the support protrusion ring 201.

[0025] When the force storage spring 402 is in a naturally relaxed state, the driving ring 403 is just aligned with the inside of the clamping ring 405, and the raised parts of the cross sections of the two are completely aligned in the radial direction. However, since the outer diameter of the driving ring 403 is slightly larger than the inner diameter of the clamping ring 405, and the shapes of the driving ring 403 and the clamping ring 405, the driving ring 403 cannot stay when facing the clamping ring 405, and will slide along the arc surface of its side to the left or right side of the clamping ring 405. The clamping ring 405 is made of the same material as the control cable protective sleeve 1 and has a certain elasticity. Even if its inner diameter is smaller than the outer diameter of the driving ring 403, it can allow the driving ring 403 to pass through; when the driving ring 403 slides to the side of the clamping ring 405, the force storage spring 402 is in a tensioned or compressed force storage state. When the cable is bent next time, the force storage The elastic potential energy of the spring 402 that wants to restore its original shape will bring the driving ring 403 through the clamping ring 405 again. The cable bends once, and the force storage spring 402 can bring the driving ring 403 to move once. While the driving ring 403 moves back and forth, it brings each group of convex ring components 2 to move back and forth through the connecting strip 404, and adjusts the valley of the serrated structure. When bending, the control cable protective sleeve 1 is aligned with the position of the convex ring top surface 204 and is supported by the convex ring top surface 204. When bending, it is less stressed and deformed. When bending, it is aligned with the chamfered surface 203, that is, the valley of the serrated structure, and is more stressed and deformed. By adjusting the sliding position of the convex ring component 2 back and forth, the force position of each bending point of the control cable protective sleeve 1 can be replaced and adjusted back and forth.

[0026] The serrated structure on the inner wall of the control cable protective sleeve 1 slides back and forth when bent, causing the positions of its valleys and peaks to alternate, which can effectively avoid the local concentrated stress rupture of the control cable protective sleeve 1 by dynamically changing the distribution of stress points. Each time it bends, the tensile and extrusion stresses that may have been concentrated in a fixed area are dispersed to different positions, so that a single part of the control cable protective sleeve 1, especially the traditional structure fixedly aligned with the valley position, will not quickly accumulate material fatigue due to high-frequency repeated stress; at the same time, the dynamic switching of stress points allows each area of ​​the control cable protective sleeve 1 to have a buffer recovery period, reducing the probability of cracks or ruptures in specific positions due to continuous stress exceeding the material tolerance limit, thereby extending the service life of the protective sleeve while maintaining structural flexibility.

[0027] The enclosure between adjacent convex ring components 2 forms a deformation cavity 3, and the interior of the deformation cavity 3 is filled with water-blocking paste. The deformation cavity 3 is the valley corresponding to the serrated structure. The valley serves as a stress concentration area when the structure is bent and a weak point that is prone to produce tiny gaps. When fine cracks or gaps may appear in the valley, the water-blocking paste can rely on the hydrophobic and sealing properties of the water-blocking paste to accurately block water, moisture and impurities from invading the interior of the cable from the weak part, thereby avoiding the overall insulation performance degradation or structural corrosion caused by local protection failure, and realizing directional enhanced protection of vulnerable key areas, taking into account both structural functionality and protection reliability.

[0028] After each valley is filled with water-blocking paste, its soft but not hard texture can fill the valley space and form an overall support with the serrated structure. When the cable is bent, it coordinates the stress state of each valley through its own deformation, so that the bending curvatures of different valleys tend to be consistent, avoiding a valley from bearing a tensile or compressive load far exceeding that of other parts due to sudden changes in curvature, reducing the material fatigue differences caused by excessive deformation of individual valleys, thereby reducing the risk of local damage first, and achieving balanced enhancement of the cable's overall anti-breakage ability.

[0029] The supporting convex ring 201 forms a natural separation barrier, confining the water-blocking paste in an independent valley space. Even if the cable is deformed due to long-term bending, vibration or temperature changes, it is difficult for the water-blocking paste to break through the barrier of the supporting convex ring 201 and accumulate in a certain area, thereby preventing the paste from being lost in other parts due to local accumulation to form a protective gap, so that the water-blocking paste can continue to play a precise protective role at each weak point, ensuring the consistency and reliability of the overall protective performance of the cable.

[0030] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A corrosion-resistant flexible control cable, characterized by: The cam is provided with a plurality of cam assemblies arranged at equal intervals inside the control cable protective sleeve, and a plurality of cam assemblies are provided along the same axial direction in the interval area formed between adjacent cam assemblies, and the cam assemblies are arranged adjacent to each other and are designed with clearance fit, so that they can rotate relative to each other, and the adjacent cam assemblies are surrounded to form a deformation cavity, and the interior of the deformation cavity is filled with water-blocking paste, and the cam assembly is slidably connected to the control cable protective sleeve, and the driving assembly can carry the cam assembly to slide back and forth in the axial direction inside the control cable protective sleeve, and the length of each sliding distance is half of the axial width of the cam assembly, and a cable winding layer passes through the interior of the cam assembly, and the cam assembly is slidably connected to the cable winding layer; the driving assembly includes a fixed ring, and a force storage spring is fixedly connected to the side of the fixed ring, and the force storage spring is fixedly connected to the driving ring at one end away from the fixed ring, a clamping ring is provided on the side of the driving ring, and the side of the driving ring away from the force storage spring is fixedly connected to a connecting strip.

2. The corrosion-resistant flexible control cable according to claim 1, characterized in that: The convex ring assembly includes a supporting convex ring, a convex ring top surface is provided on the top of the supporting convex ring, and the convex ring top surface is gap-matched with the inner wall of the control cable protective sleeve, and the gap is filled with lubricating oil, and a convex ring bottom surface is provided on the bottom of the supporting convex ring, and the convex ring bottom surface is gap-matched with the outer wall of the cable sheath, and the gap is filled with lubricating oil.

3. The corrosion-resistant flexible control cable according to claim 2, characterized in that: The supporting convex ring is symmetrically provided with convex ring inclined surfaces on both sides. The convex ring inclined surfaces are gradually inclined inward from top to bottom. Two adjacent groups of convex ring inclined surfaces form a deformation cavity with a triangular cross section.

4. The corrosion-resistant flexible control cable according to claim 3, characterized in that: A chamfered surface is provided at the connection between the convex ring inclined surface and the convex ring top surface, and the cross section of the chamfered surface is arranged to be in an arc shape.

5. The corrosion-resistant flexible control cable according to claim 1, characterized in that: The fixing ring is fixedly connected to the inner wall of the control cable protective sleeve, the fixing ring is coaxially sleeved on the outside of the cable sheath, and the inner diameter of the fixing ring is greater than the outer diameter of the cable sheath.

6. The corrosion-resistant flexible control cable according to claim 1, characterized in that: The driving ring is coaxially sleeved on the outside of the cable wrapping layer, and the driving ring and the cable wrapping layer are slidably connected.

7. The corrosion-resistant flexible control cable according to claim 1, characterized in that: The cross-sectional shape of the clamping ring is set to be semicircular.

8. The corrosion-resistant flexible control cable according to claim 1, characterized in that: The shape of the connecting strip is set to be spiral, and the connecting strip is inserted into the interior of the supporting convex ring, and the connecting strip and the supporting convex ring are slidingly connected.

9. The corrosion-resistant flexible control cable according to claim 1, characterized in that: It also includes a cable core conductor. Several cable core conductors are twisted together to form a single cable core, and each cable core is wrapped with an insulation layer.

10. The corrosion-resistant flexible control cable according to claim 9, characterized in that: The outer portion of the insulating layer is covered with a shielding layer, the gap between the shielding layer and the insulating layer is filled with a filler, and the outer portion of the shielding layer is wrapped with a cable wrapping layer.

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