Anti-loosening heating wire capable of uniformly releasing heat

Abstract

The utility model discloses an anti-loosening uniform heat release heating wire, which belongs to the technical field of heating wires, and comprises a core part for winding and bearing a heating wire body, a spiral groove for limiting the track of the heating wire body is arranged on the core part, the core part is arranged in a tube shell, a heat conduction insulating material is filled in the tube shell, and a baffle ring for clamping the outside of the core part is arranged on the inner wall of the tube shell. The baffle ring is located at the end of the core part, a lower notch allowing the heating wire body to pass through is formed in the baffle ring, a middle rod is fixed to the end of the core part, the middle rod is sleeved with a movable ring body rotationally clamped to the inner wall of the tube shell, an upper notch is formed in the movable ring body, and a conductive stretching part is arranged at the end of the heating wire body. According to the utility model, the heating wire is semi-embedded on the core part to increase the strength of the heating wire and limit the position of the heating wire, and in the use process, the anti-loosening device is utilized to enable the heating wire to be in a tight state all the time, so that the generation of gaps is avoided, the heat transfer is more stable and uniform, and the service life of the heating wire is prolonged. And the non-uniformity of the external temperature of the heating wire at different positions is further avoided.

Description

Technical Field

[0001] The utility model specifically relates to a heating wire that is anti-loosening and has uniform heat release, and belongs to the technical field of heating wires. Background Art

[0002] Heating wire is a material that generates heat and radiates heat to the outside world according to demand. As the demand becomes more refined, the heating wire is also constantly being optimized and its performance improved. The heating wire materials commonly used in industry are mostly nickel-chromium alloy wire, copper-nickel alloy wire or stainless steel wire, etc., which are widely used in industrial manufacturing, heating equipment and home appliances.

[0003] However, some heating wires have a high heating temperature. In a high temperature environment, the heating wire itself will deform and loosen, which may seriously lead to the accumulation of heating wires and uneven heating. Some finished heating wires usually need to be used with carrier components. This is for ease of use and the packaging is also conducive to maintaining the stability of the heating wire's use atmosphere. However, when the filler is poured into the outside of the heating wire, the filler will squeeze the heating wire and cause the heating wire to deviate. This greatly affects the use during the heating of mold templates with high temperature requirements and temperature research and testing. Utility Model Content

[0004] The purpose of the utility model is to address the shortcomings of the existing technology and provide a heating wire that prevents loosening and releases heat evenly. The heating wire is semi-embedded in the core to increase the strength of the heating wire and limit the position of the heating wire. During use, the anti-loosening device is used to keep the heating wire in a taut state at all times to avoid the generation of gaps, making the heat transfer more stable and uniform, and further avoiding uneven temperatures outside the heating wire at different positions.

[0005] A heating wire that prevents loosening and releases heat uniformly, comprising a core wound around a heating wire body, the core preferably made of heat-resistant ceramic material, the core being provided with a spiral groove for limiting the trajectory of the heating wire body, the core being placed in a tube shell, the outer shapes of the tube shell and the core being designed according to actual needs, and a gap being left after the assembly, the tube shell being filled with a heat-conducting insulator, the inner wall of the tube shell being provided with a retaining ring for clamping the core, the retaining ring being used to separate the heating part and to block the heat-conducting insulator, the retaining ring being located at the end of the core, and the retaining ring being provided with a lower notch for allowing the heating wire body to pass through, the core An intermediate rod is fixed at the end, and the intermediate rod is used to provide internal limiting so that the moving ring body is firmly connected. A moving ring body is sleeved on the intermediate rod and rotatably connected to the inner wall of the tube shell. The moving ring body is provided with an upper notch. The end of the heating wire body is provided with a conductive stretching part. The stretching part can bend when subjected to force and extend between the moving ring body and the retaining ring to stretch the heating wire body. The stretching part passes through the lower notch and the upper notch and extends to above the moving ring body. An anti-loosening device is provided on the moving ring body. The anti-loosening device is used to provide power for the moving ring body to pass through rotation. The stretching part is provided with a wire connected to an external power supply.

[0006] Preferably, in order to better transfer heat, the thermally conductive insulator is crystalline magnesium oxide powder, and heat dissipation ridges are provided on the outer wall of the tube shell.

[0007] Preferably, in order to prevent the external wire from being pulled back, a conductive force block is provided between the stretching part and the wire, and the force block extends to the top of the middle rod. A buffer body is fixed to the bottom of the dynamic ring body, and the buffer body is located on one side of the upper notch. The buffer body is used to better protect the pushed stretching part.

[0008] Preferably, in order to facilitate the control of the pulling force on the heating wire body, the anti-loosening device includes a force-bearing rod and a tension spring fixed on the dynamic ring body, the tension spring is arranged outside the force-bearing rod, and a rotating part is arranged on the force-bearing rod. A blocking block is provided on the side wall of the rotating part and extends to the outside of the tube shell, and the top of the tension spring and the bottom of the rotating part are connected and fixed.

[0009] Preferably, in order to facilitate operation, an end cap is rotatably engaged with the outer end of the tube shell, a side opening for engaging the block is provided on the end cap, and a through hole is provided on the end cap, and the wire extends to the outside of the end cap through the through hole.

[0010] Preferably, in order to better maintain the tension of the heating wire body, the anti-loosening device includes the force-bearing rod fixed on the dynamic ring body, a force-bearing ring is fixed on the force-bearing rod, and a torsion piece is clamped on the inner wall of the tube shell.

[0011] Preferably, in order to reduce manual operation, the torsion member includes a shell clamped on the inner wall of the tube shell, a ring groove is provided at the bottom of the shell, a torsion spring is fixed on the inner wall of the shell, the torsion spring is coiled in the shell, and one end extends to the outside of the shell through the ring groove and is fixedly connected to the force ring.

[0012] Preferably, in order to facilitate the installation and fixing of the torque member, a vertical groove is provided on the inner wall of the tube shell, a clamping block corresponding to the vertical groove is provided on the side wall of the torque member, and a lead-out hole is provided at the end of the tube shell, and the wire extends outside the tube shell through the lead-out hole.

[0013] Beneficial effects: The utility model can increase the strength of the heating wire by semi-embedded in the core, limit the position of the heating wire, and allow a certain amount of vibration to speed up the filling when filling the crystalline magnesium oxide powder, so that the crystalline magnesium oxide powder can fill the tube shell for better heat conduction, and during use, the anti-loosening device is used to keep the heating wire in a taut state at all times, and the dynamic ring body can push the stretching part by rotation, thereby tightening the heating wire, avoiding the heating wire from twisting and deformation in the tube shell, avoiding the generation of gaps, making the heat transfer more stable and uniform, and further avoiding uneven temperature outside the heating wire at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal perspective structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the thread groove structure of the core of the utility model;

[0017] Figure 4 This is a schematic structural diagram of the anti-loosening device of Example 1 of the present utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the end cap of the present utility model;

[0019] Figure 6 This is a schematic diagram of the buffer structure of the utility model;

[0020] Figure 7 This is a schematic structural diagram of an anti-loosening device according to Example 2 of the present utility model;

[0021] Figure 8 This is a schematic diagram of the torsion member structure of the present utility model.

[0022] In the figure: 1. Heating wire body; 101. Core; 2. Tube shell; 3. Retaining ring; 4. Intermediate rod; 5. Moving ring body; 501. Buffer body; 6. Tensile part; 601. Force block; 7. Anti-loosening device; 701. Force rod; 702. Tension spring; 703. Rotating part; 704. End cap; 705. Force ring; 706. Torsion part. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-8 shown.

[0025] Example 1

[0026] A heating wire that prevents loosening and releases heat uniformly includes a core 101 that is wound to support a heating wire body 1. The core 101 is preferably made of a heat-resistant ceramic material. The core 101 is provided with a spiral groove that limits the trajectory of the heating wire body 1. The core 101 is placed in a tube shell 2. The shapes of the tube shell 2 and the core 101 are designed according to actual needs. A gap should be left after the combination. The tube shell 2 is filled with a heat-conducting insulating material. A retaining ring 3 is provided on the inner wall of the tube shell 2 to clamp the outside of the core 101.

[0027] The retaining ring 3 is used to separate the heating part and block the heat-conducting insulation. The retaining ring 3 can be rotatably clamped on the tube shell 2, so that it can rotate appropriately with the heating wire body 1. The retaining ring 3 can be slidably clamped on the inner wall of the tube shell 2 and connected to the dynamic ring body 5 to install a spring, thereby compacting the heat-conducting insulation.

[0028] The retaining ring 3 is located at the end of the core 101, and the retaining ring 3 is provided with a lower notch that allows the heating wire body 1 to pass through. An intermediate rod 4 is fixed to the end of the core 101. The intermediate rod 4 is used to provide internal limit so that the dynamic ring body 5 is firmly clamped. The intermediate rod 4 is provided with a dynamic ring body 5 that is rotatably clamped on the inner wall of the tube shell 2. The dynamic ring body 5 is provided with an upper notch. The end of the heating wire body 1 is provided with a conductive stretching part 6. The stretching part 6 can bend when subjected to force and extend between the dynamic ring body 5 and the retaining ring 3 to stretch the heating wire body 1. The stretching part 6 passes through the lower notch and the upper notch and extends to above the dynamic ring body 5. The dynamic ring body 5 is provided with an anti-loosening device 7. The anti-loosening device 7 is used to provide power for the dynamic ring body 5 to pass through rotation. The stretching part 6 is provided with a wire connected to an external power supply.

[0029] This can better transfer heat. The heat-conducting insulation is crystalline magnesium oxide powder, and the outer wall of the tube shell 2 is provided with heat dissipation ridges.

[0030] A conductive force block 601 is provided between the stretching part 6 and the wire. The force block 601 extends to the top of the middle rod 4, which can prevent the external wire from being pulled back. A buffer body 501 is fixed to the bottom of the dynamic ring body 5. The buffer body 501 is located on one side of the upper notch. The buffer body 501 is used to better protect the pushed stretching part 6.

[0031] The anti-loosening device 7 includes a force-bearing rod 701 and a tension spring 702 fixed on the dynamic ring body 5. The tension spring 702 is sleeved on the outside of the force-bearing rod 701. A rotating member 703 is sleeved on the force-bearing rod 701. A clamping block is provided on the side wall of the rotating member 703 and extends to the outside of the tube shell 2. The top of the tension spring 702 and the bottom of the rotating member 703 are connected and fixed. The end of the tube shell 2 is rotated and clamped with an end cap 704. The end cap 704 is provided with a side opening for clamping the clamping block. 4 is provided with a through hole, and the wire extends to the outside of the end cap 704 through the through hole, which facilitates operation. When in use, the rotating member 703 can be rotated by rotating the end cap 704, and then the dynamic ring body 5 is pushed by the force-bearing rod 701, and the tension spring 702 can press the rotating member 703 on the tube shell 2, thereby preventing the dynamic ring body 5 from reversing. In order to further prevent reversal, a rough surface can be provided on the bottom of the rotating member 703 or the end face of the tube shell 2 to increase friction.

[0032] Example 2

[0033] The difference between this embodiment and embodiment 1 is that another anti-loosening device is provided. The anti-loosening device 7 includes a force-bearing rod 701 fixed on the dynamic ring body 5, a force-bearing ring 705 is fixed on the force-bearing rod 701, and a torsion piece 706 is clamped on the inner wall of the tube shell 2. In this way, the tension of the heating wire body 1 can be better maintained. The torsion piece 706 includes a shell clamped on the inner wall of the tube shell 2, a ring groove is opened at the bottom of the shell, and a torsion spring is fixed on the inner wall of the shell. The torsion spring is coiled in the shell, and one end extends to the inner wall of the shell through the ring groove. Outside the shell, the torsion spring can always twist the force ring 705 to reduce manual operation, and is fixedly connected to the force ring 705. A vertical groove is provided on the inner wall of the tube shell 2, and a clamping block corresponding to the vertical groove is provided on the side wall of the torsion piece 706, which can facilitate the installation and fixing of the torsion piece 706. A lead-out hole is provided at the end of the tube shell 2, and the wire extends to the outside of the tube shell 2 through the lead-out hole. When in use, the torsion spring can rotate the force ring 705, and the force ring 705 rotates the ring body 5 through the force rod 701, thereby tightening the heating wire body.

[0034] When the present invention is in use, the heating wire body can maintain a certain tension state, thereby avoiding thermal insulation gaps. When the movable ring body 5 twists, the buffer body 501 can push the stretching part 6, thereby applying force to the heating wire body.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A heating wire that is anti-loosening and has uniform heat release, comprising a core (101) wound around a heating wire body (1), the core (101) being provided with a spiral groove for limiting the trajectory of the heating wire body (1), the core (101) being placed in a tube shell (2), the tube shell (2) being filled with a heat-conducting insulating material, characterized in that: A retaining ring (3) is provided on the inner wall of the tube shell (2) for clamping the core (101), the retaining ring (3) is located at the end of the core (101), and the retaining ring (3) is provided with a lower notch for allowing the heating wire body (1) to pass through, an intermediate rod (4) is fixed to the end of the core (101), a moving ring body (5) is sleeved on the intermediate rod (4) and is rotatably clamped on the inner wall of the tube shell (2), the moving ring body (5) is provided with an upper notch, a conductive stretching part (6) is provided at the end of the heating wire body (1), the stretching part (6) passes through the lower notch and the upper notch and extends to the top of the moving ring body (5), an anti-loosening device (7) is provided on the moving ring body (5), and a wire connected to an external power source is provided on the stretching part (6).

2. The anti-loosening and uniformly heat-releasing heating wire according to claim 1, characterized in that: The heat-conducting insulating material is crystalline magnesium oxide powder, and the outer wall of the tube shell (2) is provided with heat dissipation convex strips.

3. The anti-loosening and uniformly heat-releasing heating wire according to claim 1, characterized in that: A conductive force-bearing block (601) is provided between the stretching portion (6) and the conducting wire, and the force-bearing block (601) extends to the top of the intermediate rod (4). A buffer body (501) is fixed to the bottom of the moving ring body (5), and the buffer body (501) is located on one side of the upper notch.

4. The anti-loosening and uniformly heat-releasing heating wire according to claim 1, characterized in that: The anti-loosening device (7) comprises a force-bearing rod (701) and a tension spring (702) fixed on the dynamic ring body (5); the tension spring (702) is sleeved outside the force-bearing rod (701); a rotating member (703) is sleeved on the force-bearing rod (701); a clamping block is provided on the side wall of the rotating member (703) and extends to the outside of the tube shell (2); the top of the tension spring (702) and the bottom of the rotating member (703) are connected and fixed.

5. The anti-loosening and uniformly heat-releasing heating wire according to claim 4, characterized in that: An end cap (704) is rotatably engaged with the outer end of the tube shell (2); a side opening for engaging the block is provided on the end cap (704); a through hole is provided on the end cap (704); and the wire extends to the outside of the end cap (704) through the through hole.

6. The anti-loosening and uniformly heat-releasing heating wire according to claim 4, characterized in that: The anti-loosening device (7) comprises the force-bearing rod (701) fixed on the dynamic ring body (5), a force-bearing ring (705) is fixed on the force-bearing rod (701), and a torsion piece (706) is clamped on the inner wall of the tube shell (2).

7. The anti-loosening and uniformly heat-releasing heating wire according to claim 6, characterized in that: The torsion member (706) comprises a shell body clamped on the inner wall of the tube shell (2), the bottom of the shell body is provided with an annular groove, a torsion spring is fixed on the inner wall of the shell body, the torsion spring is coiled in the shell body, and one end of the torsion spring extends to the outside of the shell body through the annular groove and is fixedly connected to the force ring (705).

8. The anti-loosening and uniformly heat-releasing heating wire according to claim 7, characterized in that: A vertical groove is provided on the inner wall of the tube shell (2), a clamping block corresponding to the vertical groove is provided on the side wall of the torsion member (706), and a lead-out hole is provided at the end of the tube shell (2), and the wire passes through the lead-out hole and extends to the outside of the tube shell (2).

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