Novel bending-resistant elevator cable outer sheath structure
By designing a corrugated tooth structure on the surface of the elevator cable sheath, the problem of cable wear caused by long-term bending is solved, improving the cable's durability and safety, and reducing cost and complexity.
Patent Information
- Application Number
- CN202423323338.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing elevator cables are prone to wear and tear under prolonged and high-frequency bending, leading to damage to the outer layer and posing safety hazards. Furthermore, existing reinforcement solutions are costly, complex, and have limited effectiveness.
A novel elevator cable outer sheath structure is designed, with corrugated teeth integrally formed on the surface of the sheath along its length. The corrugated teeth design provides folding and retraction space, reducing the compression and pulling of the sheath surface. A single-sided or double-sided corrugated tooth structure is adopted to enhance protection.
It effectively prevents elevator cable sheaths from cracking during bending, improves cable durability and safety, reduces material costs and processing complexity, and ensures cable stability during transportation.
Smart Images
Figure CN223679842U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable field, concretely relates to a novel bending-resistant elevator cable outer sheath structure. BACKGROUND
[0002] In the field of modern architecture, as the key equipment of vertical transportation, the safety and reliability of elevator is of great importance. As the core component connecting the elevator car and the control system, the elevator cable undertakes the important responsibility of transmitting power and signals. However, in the daily operation of the elevator, the cable needs to move up and down with the car, which causes continuous bending and flexing. This physical process poses a severe challenge to the durability and structural stability of the cable material. Although the existing design of elevator cable meets the basic functional requirements to some extent, it still has the problem of cable outer layer wear, internal insulation layer damage and even conductor exposure caused by long-term and high-frequency bending and flexing. Such damage not only affects the normal operation of the elevator, but also may cause electrical short circuit, signal interference and other safety hazards, and in severe cases, even leads to elevator failure, endangering the safety of passengers.
[0003] Currently, there are some attempts to enhance the wear resistance of the cable on the market, such as using more tough outer sheath material or improving the internal structure of the cable. However, these solutions often increase the material cost and processing complexity while improving the durability, and have not fundamentally solved the problem of cable damage in long-term bending environment. SUMMARY
[0004] The utility model intends to provide a novel bending-resistant elevator cable outer sheath structure to solve the problem of easy damage of the existing elevator cable sheath due to long-term bending during long-term use.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the novel bending-resistant elevator cable outer sheath structure comprises a flat square sheath body, a plurality of wrinkle teeth are integrally formed on the upper surface of the sheath body along the length direction, the wrinkle teeth span the sheath body, the plurality of wrinkle teeth are arranged side by side, the spacing between adjacent wrinkle teeth is 0.3-2mm, the height of the wrinkle tooth is 2-10mm, and the wrinkle tooth comprises an outward convex arc tooth surface and a vertical plane tooth surface.
[0006] Preferably, as an improvement, the lower surface of the sheath body is also provided with wrinkle teeth with the same shape and size as the wrinkle teeth on the upper surface.
[0007] Preferably, as an improvement, the wrinkle teeth on the lower surface and the wrinkle teeth on the upper surface are oriented in the same direction.
[0008] Preferably, as an improvement, the wrinkle teeth on the lower surface and the wrinkle teeth on the upper surface are oriented in opposite directions.
[0009] Preferably, as an improvement, the adjacent corrugated teeth are connected by a circular arc transition between the tooth roots.
[0010] The principle and advantages of the present application are as follows: in actual application, the corrugated teeth are arranged on the upper surface or the lower surface or both surfaces of the sheath, the tooth gaps between the corrugated teeth are squeezed and closed during the bending of the sheath of the elevator cable, the bending part of the sheath is provided with a retreat space, the sheath body can be folded transversely to ensure that the sheath body has a folding retreat space in the transverse direction, the repeated extrusion and bending of the surface layer of the sheath material at the bending part of the elevator cable is avoided, and then the surface layer of the sheath is prevented from cracking and being damaged. The single-sided arrangement can ensure better anti-cracking effect on the single side, and when the corrugated teeth are arranged on both sides, the tooth gap on one side is folded and squeezed, the tooth gap on the other side is expanded, the expanded tooth gap reduces the tensile force on the surface layer of the sheath on the outer side of the bending, and the surface layer of the sheath is prevented from cracking due to repeated tension. The tooth shape of the corrugated teeth ensures that the corrugated teeth can be folded when being pressed, and the surface is relatively smooth and not easy to form cracks on the surface, and the circular arc design at the tooth root also ensures that cracks are not easy to be formed when being stretched. Such a structure design makes the cable more easily fixed into a disc to maintain the state of the cable during packaging and transportation, and avoids the cable from being scattered due to the elasticity of the cable itself caused by unpacking. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic view of the upper surface of the embodiment of the present application.
[0012] Figure 2 It is a schematic view of the structure of the upper surface of the embodiment of the present application when being bent. DETAILED DESCRIPTION
[0013] The present application will be further described in detail through specific embodiments:
[0014] The reference signs in the drawings of the specification include: sheath body 1, corrugated tooth 2, arc tooth surface 3, and plane tooth surface 4.
[0015] The embodiment is basically as shown in the accompanying drawings: Figure 1 , Figure 2 The novel bending-resistant sheath structure of the elevator cable includes a flat square sheath body 1, the upper surface and the lower surface of the sheath body 1 are integrally formed with a plurality of corrugated teeth 2 along the length direction, the corrugated teeth 2 on the upper surface and the corrugated teeth 2 on the lower surface are the same in shape and size, and the corrugated teeth 2 on the lower surface and the corrugated teeth 2 on the upper surface are the same in direction. The corrugated teeth 2 cross the sheath body 1, the plurality of corrugated teeth 2 are arranged side by side, the distance between the adjacent corrugated teeth 2 is 0.3-2 mm, the tooth roots of the adjacent corrugated teeth 2 are connected by a circular arc transition, the height of the corrugated teeth 2 is 2-10 mm, and the corrugated teeth 2 include an outward convex arc tooth surface 3 and a vertical plane tooth surface 4.
[0016] The embodiment 2 is different from the embodiment 1 only in that the corrugated teeth 2 on the lower surface are opposite to the corrugated teeth 2 on the upper surface.
[0017] The specific implementation process is as follows: in actual application, the corrugated teeth 2 are arranged on the upper surface or the lower surface of the sheath or on both surfaces, the tooth-shaped gaps between the corrugated teeth 2 at the bending position of the sheath of the elevator cable are extruded and closed during the operation of the elevator, the folding relief space of the bending position of the sheath is provided, the sheath body 1 can have the folding relief space in the transverse direction, the repeated extrusion and bending of the surface layer of the sheath material at the bending position of the elevator cable is avoided, and then the cracking and damage of the surface layer of the sheath are avoided. The single-sided arrangement can ensure better anti-cracking effect on the single side, and when the double-sided arrangement is adopted, the tooth-shaped space on one side is extruded and folded, and the tooth-shaped space on the other side is expanded. The expanded tooth-shaped space reduces the tensile force on the surface layer of the sheath on the outer side of the bending, and avoids the cracking of the surface layer of the sheath due to repeated tension. The tooth-shaped design of the corrugated teeth 2 ensures that the corrugated teeth 2 can be folded when being pressed, and the surface is relatively smooth and not easy to form cracks on the surface. The circular arc design at the tooth root also ensures that cracks are not easy to be generated when being tensioned. Such a structure design makes the cable more easily fixed into a disc to maintain the state of the cable during the transportation process, and avoids the cable from being scattered due to the elastic force of the cable caused by the unpacking.
[0018] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. The protection scope of the present application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.
Claims
1. A new type of bend-resistant elevator cable jacket structure, characterized by the fact that: The sheath body is flat and square, and a plurality of corrugated teeth are integrally formed on the upper surface of the sheath body along the length direction, the corrugated teeth span the sheath body, the plurality of corrugated teeth are arranged side by side, the spacing between adjacent corrugated teeth is 0.3-2mm, the height of the corrugated teeth is 2-10mm, and the corrugated teeth comprise an outward convex curved tooth surface and a vertical planar tooth surface.
2. A novel bend resistant elevator cable jacket structure according to claim 1, characterized by: The lower surface of the sheath body is also provided with corrugated teeth with the same shape and size as the upper surface corrugated teeth.
3. A novel bend resistant elevator cable jacket structure according to claim 2, characterized in that: The corrugated teeth of the lower surface and the corrugated teeth of the upper surface are oriented in the same direction.
4. The novel bend resistant elevator cable jacket structure of claim 2, wherein: The corrugated teeth of the lower surface and the corrugated teeth of the upper surface are oriented in opposite directions.
5. The novel bend resistant elevator cable jacket structure of claim 1, wherein: The tooth roots of adjacent corrugated teeth are connected by a circular arc.