Resistance wire with composite layer structure

Abstract

The utility model belongs to the technical field of resistance wires, particularly relates to a resistance wire with a composite layer structure, and provides the following scheme aiming at the problem that two electric wires are twisted together and wound with an insulating tape in the conventional connection method of the resistance wire, and are easy to separate, and the resistance wire comprises an adjusting box, a first electricity connection rod and a second electricity connection rod are fixedly installed on the inner walls of the two sides of the adjusting box respectively, the ends, away from each other, of the first electricity connection rod and the second electricity connection rod extend to the two sides of the adjusting box respectively, and the resistance wire further comprises a resistance adjusting mechanism which is installed in the adjusting box. According to the utility model, after the resistance wire is inserted into the corresponding mounting cover, the resistance wire can be stably clamped and positioned, so that the resistance wire can be conveniently and quickly mounted, and the flow of current can be adjusted by rotating the insulating adjusting screw rod, so that the current can be adjusted in actual use, and the service life of the resistance wire is prolonged. Therefore, the method has good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance wires, in particular to a resistance wire with a composite layer structure. Background Art

[0002] A resistance wire is also known as a heating wire. As the name implies, it is a wire that uses the thermal effect of current to generate heat after being energized. There are many types, and it is called a resistance wire or a resistance wire in basic physics. A composite resistance wire is made of an alloy wire with a relatively large resistance. This wire can gradually change the resistance connected to the circuit by changing its position, thereby changing the magnitude of the current in the circuit.

[0003] When the existing resistance wire is in use, it is necessary to cut a suitable length. However, when the resistance wire is damaged, it is necessary to cut and connect the damaged part. The common connection method for electric wires is usually to twist two electric wires together and wrap insulating tape. This method is easy to come off. Therefore, we propose a resistance wire with a composite layer structure to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the prior art that when the resistance wire is in use, it is necessary to cut a suitable length. However, when the resistance wire is damaged, it is necessary to cut and connect the damaged part. The common connection method for electric wires is usually to twist two electric wires together and wrap insulating tape. This method is easy to come off, and to propose a resistance wire with a composite layer structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A resistance wire with a composite layer structure includes an adjustment box. A first power connection rod and a second power connection rod are respectively fixedly installed on the inner walls of both sides of the adjustment box. One ends of the first power connection rod and the second power connection rod away from each other respectively extend to both sides of the adjustment box. The resistance wire further includes:

[0007] A resistance adjustment mechanism. The resistance adjustment component is installed in the adjustment box. The resistance adjustment component is respectively electrically connected to one ends of the first power connection rod and the second power connection rod close to each other. The resistance adjustment mechanism is used to adjust the magnitude of the current;

[0008] Two connection mechanisms. The two connection mechanisms are respectively installed at one ends of the first power connection rod and the second power connection rod away from each other. A resistance wire is installed in the connection mechanism. The two resistance wires are respectively electrically connected to the first power connection rod and the second power connection rod.

[0009] In a possible design, the resistance adjustment mechanism includes an L-shaped conductive track and a conductive plate respectively fixedly installed on the first power connection rod and the second power connection rod. The L-shaped conductive track and the conductive plate are connected to the same telescopic component.

[0010] In a possible design, the telescopic component includes a conductive slide plate slidably connected to an L-shaped conductive track. The conductive slide plate is electrically connected to the L-shaped conductive track. A conductive tube is electrically connected to the top of the conductive slide plate. A conductive column is slidably and electrically connected inside the conductive tube. One end of the conductive column extends into the adjustment box and is fixedly and electrically connected to one side of the conductive plate.

[0011] In a possible design, a threaded plate is fixedly installed at the top of the conductive tube. An insulating adjustment screw is threadedly connected through the threaded plate. One end of the insulating adjustment screw penetrates through one inner wall of the adjustment box and extends to the outside of the adjustment box. The insulating adjustment screw is rotatably connected to one inner wall of the adjustment box.

[0012] In a possible design, the connection mechanism includes a mounting cover fixedly connected to the first power connection rod or the second power connection rod. Power connection ends are electrically connected to the mutually remote ends of the first power connection rod and the second power connection rod. The two power connection ends respectively extend into the corresponding mounting covers and are fixedly connected to one inner wall of the mounting covers. The mutually approaching ends of the two resistance wires are respectively electrically connected to the corresponding power connection ends. A clamping component is mounted on the mounting cover. The clamping component extends into the mounting cover and clamps the resistance wires electrically.

[0013] In a possible design, the clamping component includes a moving component mounted on the mounting cover. One side of the moving component extends to one side of the mounting cover and is connected to a pushing component. One side of the pushing component extends into the mounting cover and is in contact with the inner wall of the mounting cover. A support ring is fixedly installed inside the mounting cover. A plurality of arc-shaped pressing pieces are fixedly installed at equal intervals on one side of the support ring. The plurality of arc-shaped pressing pieces clamp the resistance wires. The pushing component is used to press and limit the plurality of arc-shaped pressing pieces.

[0014] In a possible design, the moving component includes an external threaded tube fixedly sleeved on the mounting cover. An internal threaded tube is threadedly connected to the external threaded tube. One side of the internal threaded tube extends to one side of the mounting cover and is connected to the pushing component.

[0015] In a possible design, the pushing component includes a connection ring fixedly installed at one end of the internal threaded tube. A push tube located inside the internal threaded tube is fixedly installed on one side of the connection ring. One end of the push tube extends into the mounting cover and a push ring is fixedly installed. A chamfered slope is provided on the inner wall of the push ring. The push ring is used to press the plurality of arc-shaped pressing pieces.

[0016] In this application, first, the resistance wire is inserted into the corresponding mounting cover, and the resistance wire is in close contact with one side of the power connection terminal. Then, the rotatable internal threaded tube can drive the internal threaded tube to move along the axis direction of the mounting cover under the action of the threaded drive with the external threaded tube. When the internal threaded tube moves, it can drive the push tube to move through the connecting ring, so as to drive the push ring to move into the mounting cover. After the inclined plane on the inner wall of the push ring contacts the arc-shaped pressing piece, the arc-shaped pressing piece can be extruded, causing the arc-shaped pressing piece to undergo elastic deformation, thereby clamping the resistance wire, thus completing the installation of the resistance wire. And during the power transmission process, the current can pass through the first power connection rod, L-shaped conductive track, conductive slide plate, conductive tube, conductive column, conductive plate, and the second power connection rod for output, so as to transmit the current. And when it is necessary to adjust the current transmission amount, by rotating the insulating adjustment screw rod, the threaded plate can be driven to move horizontally. At this time, the position of the conductive tube can be adjusted, so as to adjust the contact area between the conductive tube and the conductive column, so as to adjust the current magnitude.

[0017] Beneficial effects:

[0018] In the present utility model, for the composite layer structure resistance wire, through the resistance adjustment mechanism, by adjusting the telescopic assembly, the flow rate of the current transmitted from the L-shaped conductive track to the conductive plate can be adjusted, so as to facilitate the adjustment of the current magnitude;

[0019] In the present utility model, for the composite layer structure resistance wire, through the connection mechanism, after one end of the resistance wire is inserted into the corresponding mounting cover and is in electrical contact with the power connection terminal, then the clamping assembly can be operated to clamp and position the resistance wire, so as to enable the resistance wire to be stably electrically connected to the power connection terminal;

[0020] After the resistance wire is inserted into the corresponding mounting cover in the present utility model, the resistance wire can be stably clamped and positioned, so as to facilitate the rapid installation of the resistance wire. And by rotating the insulating adjustment screw rod, the current flow rate can be adjusted. Therefore, during actual use, the current magnitude can be adjusted, so it has good practicability. Brief description of the drawings

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a composite layer structure resistance wire proposed by the present utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram of the sectional structure of the adjustment box of a composite layer structure resistance wire proposed by the present utility model;

[0023] Figure 3 It is a three-dimensional schematic diagram of the sectional structure of the mounting cover of a composite layer structure resistance wire proposed by the present utility model.

[0024] In the figure: 1, adjusting box; 2, L-shaped conductive track; 3, conductive plate; 4, first power connection rod; 5, second power connection rod; 6, conductive column; 7, conductive tube; 8, conductive sliding plate; 9, insulating adjusting screw; 10, threaded plate; 11, mounting cover; 12, external threaded tube; 13, internal threaded tube; 14, connecting ring; 15, power connection end; 16, support ring; 17, arc-shaped pressing piece; 18, pushing tube; 19, pushing ring; 20, resistance wire. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Embodiment 1

[0027] Referring to Figures 1-3 , a resistance wire includes an adjusting box 1, a resistance adjusting mechanism and two connecting mechanisms. The first power connection rod 4 and the second power connection rod 5 are respectively fixedly installed on the inner walls of both sides of the adjusting box 1. The mutually remote ends of the first power connection rod 4 and the second power connection rod 5 respectively extend to both sides of the adjusting box 1. The resistance adjusting component is installed in the adjusting box 1 and is electrically connected to the mutually close ends of the first power connection rod 4 and the second power connection rod 5 respectively. The resistance adjusting mechanism is used to adjust the magnitude of the current. The two connecting mechanisms are respectively installed at the mutually remote ends of the first power connection rod 4 and the second power connection rod 5. A resistance wire 20 is installed in the connecting mechanism. The two resistance wires 20 are respectively electrically connected to the first power connection rod 4 and the second power connection rod 5.

[0028] The resistance adjusting mechanism includes an L-shaped conductive track 2 and a conductive plate 3 respectively fixedly installed with the first power connection rod 4 and the second power connection rod 5. The L-shaped conductive track 2 and the conductive plate 3 are connected with the same telescopic component. By adjusting the telescopic component, the flow rate of the current transported from the L-shaped conductive track 2 to the conductive plate 3 can be adjusted, so as to conveniently adjust the magnitude of the current. The telescopic component includes a conductive sliding plate 8 slidably connected to the L-shaped conductive track 2. The conductive sliding plate 8 is electrically connected to the L-shaped conductive track 2. The top of the conductive sliding plate 8 is electrically connected to a conductive tube 7. A conductive column 6 is slidably and electrically connected in the conductive tube 7. One end of the conductive column 6 extends into the adjusting box 1 and is fixedly and electrically connected to one side of the conductive plate 3. By adjusting the position of the conductive tube 7, the contact area between the conductive tube 7 and the conductive column 6 can be adjusted, so as to adjust the flow rate of the current, thereby realizing the adjustment.

[0029] The connection mechanism includes a mounting cover 11 fixedly connected to the first power connection rod 4 or the second power connection rod 5. Electric connection ends 15 are electrically connected to the mutually remote ends of the first power connection rod 4 and the second power connection rod 5 respectively. The two electric connection ends 15 extend into the corresponding mounting covers 11 respectively and are fixedly connected to the inner walls of one sides of the mounting covers 11. The mutually approaching ends of the two resistance wires 20 are electrically connected to the corresponding electric connection ends 15 respectively. A clamping assembly is mounted on the mounting cover 11. The clamping assembly extends into the mounting cover 11 and clamps the resistance wires 20 electrically. After one end of the resistance wire 20 is inserted into the corresponding mounting cover 11 and is in electrical contact with the electric connection end 15, the clamping assembly can be operated to clamp and position the resistance wire 20, so that the resistance wire 20 can be stably electrically connected to the electric connection end 15. The clamping assembly includes a moving assembly mounted on the mounting cover 11. One side of the moving assembly extends to one side of the mounting cover 11 and is connected to a pushing assembly. One side of the pushing assembly extends into the mounting cover 11 and is in contact with the inner wall of the mounting cover 11. A support ring 16 is fixedly mounted inside the mounting cover 11. A plurality of arc-shaped pressing pieces 17 are fixedly mounted at equal intervals on one side of the support ring 16. The plurality of arc-shaped pressing pieces 17 clamp the resistance wire 20. The pushing assembly is used to press and limit the plurality of arc-shaped pressing pieces 17. By operating the moving assembly, the pushing assembly can be driven to move. At this time, when the pushing assembly moves into the mounting cover 11, the plurality of arc-shaped pressing pieces 17 can be extruded, so that the arc-shaped pressing pieces 17 undergo elastic deformation. When the plurality of arc-shaped pressing pieces 17 are closed together, the resistance wire 20 can be stably clamped and positioned. The moving assembly includes an external thread tube 12 fixedly sleeved on the mounting cover 11. An internal thread tube 13 is threadedly connected to the external thread tube 12. One side of the internal thread tube 13 extends to one side of the mounting cover 11 and is connected to the pushing assembly. By rotating the internal thread tube 13, under the action of the threaded drive with the external thread tube 12, the internal thread tube 13 can be driven to move along the axial direction of the mounting cover 11. At this time, the pushing assembly can be driven to move, so that the pushing assembly can be driven to move.

[0030] This application can be used in the technical field of resistance wires, and can also be used in other fields applicable to this application.

[0031] Embodiment 2

[0032] Reference Figure 2 and Figure 3, an improvement based on Embodiment 1: A composite layer structure resistance wire, which is applied to the technical field of resistance wires. A threaded plate 10 is fixedly installed on the top of the conductive tube 7. An insulating adjustment screw 9 is threadedly connected through the threaded plate 10. One end of the insulating adjustment screw 9 penetrates through the inner wall of one side of the adjustment box 1 and extends to the outside of the adjustment box 1. The insulating adjustment screw 9 is rotatably connected to the inner wall of one side of the adjustment box 1. By rotating the insulating adjustment screw 9, the threaded plate 10 can be driven to move horizontally. At this time, the position of the conductive tube 7 can be adjusted, so that the contact area between the conductive tube 7 and the conductive column 6 can be adjusted, so as to adjust the magnitude of the current. The pushing assembly includes a connecting ring 14 fixedly installed at one end of the internal threaded tube 13. A pushing tube 18 located inside the internal threaded tube 13 is fixedly installed on one side of the connecting ring 14. One end of the pushing tube 18 extends into the installation cover 11 and is fixedly installed with a pushing ring 19. The inner wall of the pushing ring 19 is provided with a chamfered slope. The pushing ring 19 is used to press a plurality of arc-shaped pressing pieces 17. When the connecting ring 14 moves along with the internal threaded tube 13, the pushing ring 19 can be driven to move through the pushing tube 18. At this time, after the slope on the inner wall of the pushing ring 19 contacts the arc-shaped pressing piece 17, the arc-shaped pressing piece 17 can be extruded, so that the arc-shaped pressing piece 17 undergoes elastic deformation, thereby being able to clamp the resistance wire 20.

[0033] However, as is well known to those skilled in the art, the working principles and wiring methods of the L-shaped conductive track 2, the conductive plate 3, the first power connection rod 4, the second power connection rod 5, the conductive column 6, the conductive sliding plate 8, the power connection end 15, and the resistance wire 20 are common knowledge. They all belong to conventional means or well-known common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A composite layer structure resistance wire, comprising an adjustment box (1), wherein a first power connection rod (4) and a second power connection rod (5) are respectively and fixedly installed on two inner walls of the adjustment box (1), and one ends of the first power connection rod (4) and the second power connection rod (5) away from each other respectively extend to two sides of the adjustment box (1), characterized in that, The resistance wire further includes: a resistance adjusting mechanism, the resistance adjusting component is installed in the adjusting box (1), the resistance adjusting component is electrically connected to the closer ends of the first power connection rod (4) and the second power connection rod (5) respectively, and the resistance adjusting mechanism is used to adjust the magnitude of the current; two connecting mechanisms, the two connecting mechanisms are respectively installed at the farther ends of the first power connection rod (4) and the second power connection rod (5), the resistance wire (20) is installed in the connecting mechanism, and the two resistance wires (20) are respectively electrically connected to the first power connection rod (4) and the second power connection rod (5).

2. The composite layer structure resistance wire according to claim 1, characterized in that, The resistance adjusting mechanism includes an L-shaped conductive track (2) and a conductive plate (3) which are fixedly installed with the first power connection rod (4) and the second power connection rod (5) respectively, and the same telescopic component is connected between the L-shaped conductive track (2) and the conductive plate (3).

3. The composite layer structure resistance wire according to claim 2, characterized in that, The telescopic component includes a conductive sliding plate (8) slidably connected to the L-shaped conductive track (2), the conductive sliding plate (8) is electrically connected to the L-shaped conductive track (2), the top of the conductive sliding plate (8) is electrically connected to a conductive tube (7), a conductive column (6) is slidably and electrically connected in the conductive tube (7), and one end of the conductive column (6) extends into the adjusting box (1) and is fixedly and electrically connected to one side of the conductive plate (3).

4. The composite layer structure resistance wire according to claim 3, characterized in that, A threaded plate (10) is fixedly installed at the top of the conductive tube (7), an insulating adjusting screw (9) is threadedly connected through the threaded plate (10), one end of the insulating adjusting screw (9) penetrates through one side inner wall of the adjusting box (1) and extends to the outside of the adjusting box (1), and the insulating adjusting screw (9) is rotatably connected to one side inner wall of the adjusting box (1).

5. A composite layer structure resistance wire according to claim 1, characterized in that, The connecting mechanism includes a mounting cover (11) fixedly connected to the first power connection rod (4) or the second power connection rod (5), power connection ends (15) are electrically connected to the farther ends of the first power connection rod (4) and the second power connection rod (5) respectively, the two power connection ends (15) respectively extend into the corresponding mounting cover (11) and are fixedly connected to one side inner wall of the mounting cover (11), the closer ends of the two resistance wires (20) are respectively electrically connected to the corresponding power connection ends (15), and a clamping component is installed on the mounting cover (11), and the clamping component extends into the mounting cover (11) and clamps the resistance wire (20) electrically.

6. The composite layer structure resistance wire according to claim 5, characterized in that, The clamping component includes a moving component installed on the mounting cover (11), one side of the moving component extends to one side of the mounting cover (11) and is connected to a pushing component, one side of the pushing component extends into the mounting cover (11) and contacts the inner wall of the mounting cover (11), a support ring (16) is fixedly installed in the mounting cover (11), and a plurality of arc-shaped pressing pieces (17) are fixedly installed at equal intervals on one side of the support ring (16), and the plurality of arc-shaped pressing pieces (17) clamp the resistance wire (20), and the pushing component is used to press and limit the plurality of arc-shaped pressing pieces (17).

7. The composite layer structure resistance wire according to claim 6, characterized in that, The moving component includes an external threaded tube (12) fixedly sleeved on the mounting cover (11), an internal threaded tube (13) is threadedly connected to the external threaded tube (12), and one side of the internal threaded tube (13) extends to one side of the mounting cover (11) and is connected to the pushing component.

8. A composite layer structure resistance wire according to claim 7, characterized in that, The pushing component includes a connecting ring (14) fixedly installed at one end of the internal thread pipe (13). On one side of the connecting ring (14), a pushing pipe (18) located inside the internal thread pipe (13) is fixedly installed. One end of the pushing pipe (18) extends into the installation cover (11) and is fixedly installed with a pushing ring (19). A bevel chamfer is provided on the inner wall of the pushing ring (19), and the pushing ring (19) is used to press a plurality of arc-shaped pressing pieces (17).

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