Stretchable tough resistance wire

Abstract

The utility model discloses a stretchable tough resistance wire which comprises a resistance wire body, the resistance wire body is of a spiral structure, connecting rods are fixedly connected to the outer sides of the circumferences, located at the two ends, of the resistance wire body, and a sliding rod is fixedly connected to one side of one connecting rod. And one side of the other connecting rod is fixedly connected with a sliding cylinder which slides in cooperation with the sliding rod, the resistance wire body comprises a base layer, and the outer wall of the circumference of the base layer is sprayed with an insulating coating. The sliding rod can slide left and right through cooperation of the sliding rod and the sliding cylinder, the resistance wire body is driven to stretch out and draw back through the connecting rod, the resistance wire can be adjusted to any length, the sliding rod cannot rotate in the sliding cylinder through the plane structure, the resistance wire body is more stable in the sliding process, and the resistance wire can be adjusted to any length. And the plane structure also increases the contact area between the screw rod and the sliding rod.

Description

Technical Field

[0001] This utility model relates to the field of resistance wire technology, and in particular to a stretchable and flexible resistance wire. Background Technology

[0002] Resistance wire, as a high-performance material, has excellent conductivity and stability and is widely used in many fields, such as heating elements, sensors, and new energy equipment.

[0003] Typically, resistance wires are straight, and their standard manufacturing length is fixed. This fixed length design means that resistance wires cannot be stretched in practical applications and can only be cut into suitable specifications from long resistance wires, thus limiting the use of resistance wires in certain specific scenarios. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stretchable and resilient resistance wire.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stretchable and flexible resistance wire includes a resistance wire body with a spiral structure. Connecting rods are fixedly connected to the outer circumference of both ends of the resistance wire body. A sliding rod is fixedly connected to one side of one of the connecting rods, and a sliding cylinder that slides in cooperation with the sliding rod is fixedly connected to one side of the other connecting rod. The resistance wire body includes a base layer, and an insulating coating is sprayed on the outer circumference of the base layer. A wear-resistant coating is sprayed on the outer circumference of the insulating coating.

[0007] As a further improvement of this utility model, the top of the slide bar has a planar structure.

[0008] As a further embodiment of this utility model, a lead screw is threadedly connected to the outer circumference of one end of the slide cylinder, and one end of the lead screw passes through the slide cylinder and contacts the planar structure at the top of the slide rod. The slide rod and the connecting rod are both insulating rods, and the slide cylinder is an insulating cylinder.

[0009] As a further embodiment of this utility model, the base layer is made of a nickel-chromium alloy layer or an iron-chromium-aluminum alloy layer.

[0010] As a further embodiment of this invention, the insulating coating is made of a polypropylene layer or a fluoroplastic layer.

[0011] As a further embodiment of this invention, the wear-resistant coating is made of epoxy resin or polyurethane wear-resistant resin.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model increases the stretchability by setting the resistance wire into a spiral structure. Through the cooperation of the slide rod and the slide cylinder, the slide rod can slide left and right, and then the connecting rod drives the extension and retraction of the resistance wire body, so that the length of the resistance wire can be adjusted within a certain range.

[0014] 2. This utility model uses a planar structure to prevent the slide rod from rotating inside the slide cylinder, making the resistance wire body more stable during sliding. The planar structure also increases the contact area between the lead screw and the slide rod, thereby increasing the friction between the lead screw and the slide rod, making the resistance wire more stable during use.

[0015] 3. This utility model extends the service life of the resistance wire, improves stability, reduces maintenance costs, adapts to harsh environments, and enhances safety through a wear-resistant coating. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a stretchable and flexible resistance wire proposed in this utility model.

[0017] Figure 2 This is a partial cross-sectional view of a stretchable, flexible resistance wire proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the resistance wire body structure of a stretchable and tough resistance wire proposed in this utility model.

[0019] In the diagram: 1. Resistance wire body; 2. Slide rod; 3. Connecting rod; 4. Planar structure; 5. Slide cylinder; 6. Lead screw; 7. Base layer; 8. Insulating coating; 9. Wear-resistant coating. Detailed Implementation

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application. Example 1

[0021] Reference Figures 1-3A stretchable and flexible resistance wire includes a resistance wire body 1, which has a spiral structure. Connecting rods 3 are fixed to the outer circumference of both ends of the resistance wire body 1 by bolts. A sliding rod 2 is welded to one side of one of the connecting rods 3, and a sliding cylinder 5 that slides with the sliding rod 2 is welded to one side of the other connecting rod 3. By pulling or pushing the sliding rod 2, the sliding rod 2 slides left and right along the sliding cylinder 5. At the same time, the sliding rod 2 drives the resistance wire body 1 to extend or shorten through the connecting rod 3, so that the length of the resistance wire body 1 can be adjusted within a certain range, allowing the resistance wire to be used in certain specific scenarios.

[0022] The resistance wire body 1 includes a base layer 7, which is made of a nickel-chromium alloy layer. The nickel-chromium alloy layer has good oxidation resistance and corrosion resistance, and maintains stable strength and ductility in high-temperature environments.

[0023] The outer circumference of the base layer 7 is coated with an insulating coating 8. The insulating coating 8 is made of polypropylene. The polypropylene layer can be used in environments below 200℃ and has good electrical insulation properties and chemical stability.

[0024] The outer circumference of the insulating coating 8 is coated with a wear-resistant coating 9. The wear-resistant coating 9 is made of epoxy resin. The epoxy resin layer has excellent physical and chemical properties. Its wear resistance mainly comes from its internal cross-linking structure. This structure enables the resin to resist wear when subjected to friction.

[0025] The base layer 7 has a certain degree of toughness, which makes the resistance wire body 1 less likely to break during the stretching process, such as nickel-chromium alloy.

[0026] In this utility model, the top of the slide rod 2 is provided with a planar structure 4. The planar structure 4 prevents the slide rod 2 from rotating inside the slide cylinder 5, making the resistance wire body 1 more stable during sliding. The outer circumferential wall of the slide cylinder 5 at one end is threaded with a lead rod 6, and one end of the lead rod 6 passes through the slide cylinder 5 and contacts the planar structure 4 at the top of the slide rod 2. The slide rod 2, the connecting rod 3, and the lead rod 6 are all insulating rods, and the slide cylinder 5 is an insulating cylinder, such as S41003 stainless steel.

[0027] By rotating the lead screw 6, one end of the lead screw 6 contacts the top plane structure 4 of the slide rod 2, thereby using the friction between the lead screw 6 and the slide rod 2 to quickly fix the slide rod 2, thus preventing the resistance wire body 1 from extending or shortening during use.

[0028] Working principle: When needed, by pulling or pushing the slide bar 2, the slide bar 2 slides left and right along the slide cylinder 5. At the same time, the slide bar 2 drives the resistance wire body 1 to extend or shorten through the connecting rod 3, so that the length of the resistance wire body 1 can be adjusted within a certain range. Example 2

[0029] In this embodiment, the base layer 7 is made of an iron-chromium-aluminum alloy layer. The addition of chromium and aluminum gives the alloy excellent oxidation resistance at high temperatures, effectively extending its service life. It also enhances the thermal stability and high-temperature resistance of the alloy, making it less prone to deformation or brittleness during stretching.

[0030] The insulating coating 8 is made of fluoroplastic, which is suitable for high temperature, high pressure and high intensity working environments. It has good corrosion resistance, wear resistance and aging resistance, and can effectively prevent the aging and damage of the insulation layer.

[0031] The wear-resistant coating 9 is made of polyurethane wear-resistant resin layer. Polyurethane wear-resistant resin layer has excellent wear resistance. The wear resistance of this resin is mainly due to its good elasticity and strong impact resistance. When subjected to external force, polyurethane resin can disperse stress through its own elasticity, thereby reducing wear.

[0032] Working principle: When needed, by pulling or pushing the slide bar 2, the slide bar 2 slides left and right along the slide cylinder 5. At the same time, the slide bar 2 drives the resistance wire body 1 to extend or shorten through the connecting rod 3, so that the length of the resistance wire body 1 can be adjusted within a small range, allowing the resistance wire to be used in certain specific scenarios.

[0033] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stretchable, ductile resistance wire comprising a resistance wire body (1), characterized in that, The resistance wire body (1) is of a spiral structure, and the resistance wire body (1) is fixedly connected with connecting rods (3) on the outer circumferences of both end positions, one side of one of the connecting rods (3) is fixedly connected with a sliding rod (2), and one side of the other connecting rod (3) is fixedly connected with a sliding cylinder (5) which is matched with the sliding rod (2) to slide, the resistance wire body (1) comprises a base layer (7), the outer circumferential wall of the base layer (7) is sprayed with an insulating coating (8), and the outer circumference of the insulating coating (8) is sprayed with a wear-resistant coating (9).

2. A stretchable, ductile resistance wire according to claim 1, wherein The top of the sliding rod (2) is provided with a planar structure (4).

3. A stretchable, ductile resistance wire according to claim 1, wherein The sliding cylinder (5) is threadedly connected with a lead screw (6) on the outer circumferential wall of one end position, one end of the lead screw (6) penetrates through the sliding cylinder (5) and is in contact with the planar structure (4) on the top of the sliding rod (2), the sliding rod (2) and the connecting rod (3) are insulating rods, and the sliding cylinder (5) is an insulating cylinder.

4. The stretchable, ductile resistance wire of claim 1, wherein, The material of the base layer (7) is a nickel-chromium alloy layer or an iron-chromium-aluminum alloy layer.

5. The stretchable, ductile resistance wire of claim 1, wherein, The material of the insulating coating (8) is a polypropylene layer or a fluoroplastic layer.

6. The stretchable, ductile resistance wire of claim 1, wherein, The material of the wear-resistant coating (9) is an epoxy resin layer or a polyurethane wear-resistant resin layer.

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