Electric heating band with double-layer insulation structure

Abstract

The utility model relates to the field of electric heating, disclose a kind of electric heating band with double-layer insulation structure, including first joint, the one end of the first joint is provided with second joint, the inside fixed connection of the first joint has first fixed block, the one end fixed connection of the first fixed block has enclosure block, the one end fixed connection of the enclosure block has tooth card, the inside sliding connection of the first joint has slide bar, the outer wall of the slide bar is installed with spring, the one end fixed connection of the slide bar has pull rod, the outer wall fixed connection of the slide bar has positioning rod, the inside fixed connection of the second joint has limit block, the one end of the second joint is provided with sealing strip, the inside of the first joint is provided with clamping assembly. By pushing pull rod makes slide bar can slide inside first joint, simultaneously using the elasticity of spring makes slide bar can reciprocating slide, by the limit slot opened inside limit block makes tooth card and slide bar can all slide in limit slot.

Description

Technical Field

[0001] This utility model relates to the field of electric heating, and in particular to an electric heating tape with a double-layer insulation structure. Background Technology

[0002] Electric heating tape is a commonly used antifreeze, heat preservation, and heating device in industrial and civil fields. It can adapt to different temperatures and environments. In order to adapt to different environments, the outer surface of the electric heating tape is wrapped with insulating materials such as rubber without affecting the temperature transfer after the heating wire is heated. Because the heating wire and the insulating outer skin are flexible, they can be wound into different shapes to fit tightly according to different environments.

[0003] Prepare the required length of heating tape. If a single heating tape is wound all the way through, the heat generation efficiency at both ends will differ, resulting in temperature differences. Therefore, most heating tapes are wound in segments, with each segment generating heat to ensure heat balance.

[0004] In order to ensure uniform heat generation, a segmented winding method is adopted. However, segmented connection requires the use of connectors to connect the heating tape. Since different environments have different requirements, the types of connectors also vary. Therefore, different connectors need to be replaced according to different environments, resulting in a low applicability range of the connectors. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an electric heating tape with a double-layer insulation structure, which aims to improve the problem of the limited applicability of electric heating tape connectors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An electric heating tape with a double-layer insulation structure includes a first connector, a second connector at one end of the first connector, a first fixing block fixedly connected inside the first connector, a surrounding block fixedly connected at one end of the first fixing block, a toothed clamp fixedly connected at one end of the surrounding block, a sliding rod slidably connected inside the first connector, a spring installed on the outer wall of the sliding rod, a pull rod fixedly connected at one end of the sliding rod, a positioning rod fixedly connected to the outer wall of the sliding rod, a limit block fixedly connected inside the second connector, a sealing strip at one end of the second connector, and a clamping assembly inside the first connector.

[0007] The above technical solution involves fixing the tooth clip by fixing the surrounding block with the first fixing block, pushing the pull rod to allow the slide rod to slide inside the first connector, and using the elasticity of the spring to allow the slide rod to slide back and forth. The limiting groove opened inside the limiting block allows both the tooth clip and the slide rod to slide within the limiting groove. The tooth clip is locked inside the limiting groove to connect the first connector and the second connector. Pressing the pull rod causes the slide rod to push the tooth clip downward to slide the tooth clip out of the limiting groove, thereby disconnecting the first connector and the second connector. The positioning rod fixed at one end of the slide rod can prevent the slide rod from detaching from the first connector.

[0008] Preferably, the clamping assembly includes a knob, which is rotatably connected to the top of the first connector. One end of the knob is fixedly connected to a first gear, and the teeth of the first gear are meshed with multiple second gears. A bidirectional lead screw is fixedly connected to the inner wall of the second gear, and multiple second fixing blocks are threadedly connected to the outer wall of the bidirectional lead screw. A clamping block is fixedly connected to one end of each second fixing block, and a wire is provided at one end of the clamping block. An electric heating strip is provided inside the wire.

[0009] Preferably, the spring is installed at one end of the first connector, the positioning rod is slidably connected inside the first connector, and the limiting block is slidably connected inside the first connector.

[0010] Preferably, the slide rod is slidably connected to one end of the toothed clip, and the spring is installed at the bottom end of the pull rod.

[0011] Preferably, the limiting block has a limiting groove inside, the toothed clip is slidably connected inside the limiting groove, and the slide rod is slidably connected inside the limiting groove.

[0012] Preferably, the first gear is rotatably connected inside the first connector, the second gear is rotatably connected inside the first connector, and the bidirectional lead screw is rotatably connected inside the first connector.

[0013] Preferably, the heating strip is slidably connected inside the clamping block, and the bidirectional lead screw is rotatably connected inside the clamping block.

[0014] Preferably, the bundle line has a through opening inside, and the first fixing block has a through opening inside, with the through opening communicating with the through opening.

[0015] This utility model has the following beneficial effects: 1. In this utility model, the sliding rod can slide inside the first connector by pushing the pull rod, and the elasticity of the spring can make the sliding rod slide back and forth. The limiting groove opened inside the limiting block allows both the toothed clip and the sliding rod to slide in the limiting groove. The toothed clip locks the inside of the limiting groove, so that the first connector and the second connector are connected, thereby achieving the effect of wide applicability and simple connection.

[0016] 2. In this utility model, the first gear is rotated by rotating the knob. The second gear, which is meshed at both ends of the first gear, rotates along with the first gear. The rotation of the second gear drives the bidirectional lead screw to rotate. The second fixing block is threadedly connected to the outer wall of the bidirectional lead screw. At the same time, the clamping block limits the second fixing block so that when the bidirectional lead screw rotates, the second fixing block can drive the clamping block to move up and down, thereby achieving the clamping effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of an electric heating tape with a double-layer insulation structure proposed in this utility model; Figure 2 This is a side view of an electric heating tape with a double-layer insulation structure proposed in this utility model; Figure 3 This is an internal view of an electric heating tape with a double-layer insulation structure proposed in this utility model; Figure 4 This is an internal view of the clamping mechanism of a heating tape with a double-layer insulation structure proposed in this utility model. Figure 5 This is a cross-sectional view of an electric heating tape with a double-layer insulation structure proposed in this utility model.

[0018] Legend: 1. First connector; 2. Second connector; 3. First fixing block; 4. Enclosing block; 5. Tooth clamp; 6. Slide rod; 7. Spring; 8. Pull rod; 9. Positioning rod; 10. Limiting block; 11. Sealing strip; 12. Knob; 13. First gear; 14. Second gear; 15. Two-way lead screw; 16. Second fixing block; 17. Clamping block; 18. Bundling wire; 19. Heating strip. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Reference Figures 1-5 One embodiment provided by this utility model: An electric heating tape with a double-layer insulation structure includes a first connector 1, a second connector 2 at one end of the first connector 1, a first fixing block 3 fixedly connected inside the first connector 1, a surrounding block 4 fixedly connected at one end of the first fixing block 3, a toothed clip 5 fixedly connected at one end of the surrounding block 4, a sliding rod 6 slidably connected inside the first connector 1, a spring 7 installed on the outer wall of the sliding rod 6, a pull rod 8 fixedly connected at one end of the sliding rod 6, a positioning rod 9 fixedly connected to the outer wall of the sliding rod 6, a limit block 10 fixedly connected inside the second connector 2, a sealing strip 11 at one end of the second connector 2, and a clamping assembly inside the first connector 1.

[0021] Specifically, the first fixing block 3 fixes the surrounding block 4, thereby fixing the tooth clip 5. Pushing the pull rod 8 allows the slide rod 6 to slide inside the first connector 1. At the same time, the elasticity of the spring 7 allows the slide rod 6 to slide back and forth. The limiting groove opened inside the limiting block 10 allows both the tooth clip 5 and the slide rod 6 to slide within the limiting groove. The tooth clip 5 is locked inside the limiting groove, connecting the first connector 1 and the second connector 2. Pressing the pull rod 8 causes the slide rod 6 to push the tooth clip 5 downward, thereby causing the tooth clip 5 to slide out of the limiting groove and thus disconnecting the first connector 1 and the second connector 2. The positioning rod 9 fixed at one end of the slide rod 6 can prevent the slide rod 6 from detaching from the first connector 1, thus achieving a quick disassembly and assembly effect and improving the applicability.

[0022] Reference Figure 4 The clamping assembly includes a knob 12, which is rotatably connected to the top of the first connector 1. One end of the knob 12 is fixedly connected to a first gear 13. The teeth of the first gear 13 are meshed with multiple second gears 14. The inner wall of the second gear 14 is fixedly connected to a bidirectional lead screw 15. The outer wall of the bidirectional lead screw 15 is threadedly connected to multiple second fixing blocks 16. One end of the second fixing block 16 is fixedly connected to a clamping block 17. One end of the clamping block 17 is provided with a wire bundle 18. The inside of the wire bundle 18 is provided with an electric heating strip 19.

[0023] Specifically, by rotating the knob 12, the first gear 13 is driven to rotate. The second gear 14, which meshes with the two ends of the first gear 13, rotates along with the first gear 13. The rotation of the second gear 14 drives the bidirectional lead screw 15 to rotate. The second fixing block 16 is threadedly connected to the outer wall of the bidirectional lead screw 15. At the same time, the clamping block 17 limits the second fixing block 16 so that when the bidirectional lead screw 15 rotates, the second fixing block 16 can drive the clamping block 17 to move up and down, thereby achieving the clamping effect.

[0024] Reference Figure 2 Spring 7 is installed at one end of the first connector 1, positioning rod 9 is slidably connected inside the first connector 1, and limiting block 10 is slidably connected inside the first connector 1.

[0025] Specifically, by pushing the pull rod 8, the slide rod 6 can slide inside the first connector 1. At the same time, the elasticity of the spring 7 allows the slide rod 6 to slide back and forth. The limiting groove opened inside the limiting block 10 allows both the toothed clip 5 and the slide rod 6 to slide within the limiting groove. The toothed clip 5 locks into the inside of the limiting groove, connecting the first connector 1 and the second connector 2. Pressing the pull rod 8 causes the slide rod 6 to push the toothed clip 5 downward, thereby causing the toothed clip 5 to slide out of the limiting groove and thus disconnecting the first connector 1 and the second connector 2 to achieve a self-locking effect.

[0026] Reference Figure 3 The slide rod 6 is slidably connected to one end of the toothed clip 5, and the spring 7 is installed at the bottom end of the pull rod 8.

[0027] Specifically, the first fixing block 3 fixes the surrounding block 4, thereby fixing the tooth clip 5. The push rod 8 is used to make the slide rod 6 slide inside the first connector 1. At the same time, the elasticity of the spring 7 is used to make the slide rod 6 achieve a reciprocating sliding effect.

[0028] Reference Figure 2 The limiting block 10 has a limiting groove inside, the toothed clip 5 is slidably connected inside the limiting groove, and the slide rod 6 is slidably connected inside the limiting groove.

[0029] Specifically, by pushing the pull rod 8, the slide rod 6 can slide inside the first joint 1. At the same time, the elasticity of the spring 7 allows the slide rod 6 to slide back and forth. The limiting groove opened inside the limiting block 10 achieves the limiting effect between the toothed clip 5 and the slide rod 6.

[0030] Reference Figure 4 The first gear 13 is rotatably connected inside the first joint 1, the second gear 14 is rotatably connected inside the first joint 1, and the bidirectional lead screw 15 is rotatably connected inside the first joint 1.

[0031] Specifically, by rotating the knob 12, the first gear 13 is driven to rotate. The second gear 14, which meshes with the two ends of the first gear 13, rotates along with the first gear 13. The rotation of the second gear 14 drives the bidirectional lead screw 15 to rotate, thereby achieving the driving effect.

[0032] Reference Figure 5 The heating element 19 is slidably connected inside the clamping block 17, and the bidirectional lead screw 15 is rotatably connected inside the clamping block 17.

[0033] Specifically, the rotation of the first gear 13 drives the second gear 14, which meshes with both ends of the first gear 13, to rotate. The rotation of the second gear 14 drives the bidirectional lead screw 15 to rotate. The second fixing block 16 is threadedly connected to the outer wall of the bidirectional lead screw 15. At the same time, the clamping block 17 limits the second fixing block 16 so that when the bidirectional lead screw 15 rotates, the second fixing block 16 can drive the clamping block 17 to move up and down, thereby achieving the clamping effect.

[0034] Reference Figure 5 The inside of the bundle line 18 has a through opening, and the inside of the first fixing block 3 has a through opening, which communicates with the through opening.

[0035] Specifically, when the bidirectional lead screw 15 rotates by limiting the second fixing block 16 by the clamping block 17, the second fixing block 16 can drive the clamping block 17 to move up and down, thereby clamping the heating strip 19 by the clamping block 17. The secondary fixing effect of the heating strip 19 is achieved by the through opening inside the binding wire 18 and the through opening inside the first fixing block 3.

[0036] Working principle: The first fixing block 3 fixes the surrounding block 4, thereby fixing the tooth clip 5. Pushing the pull rod 8 allows the slide rod 6 to slide inside the first connector 1. At the same time, the elasticity of the spring 7 allows the slide rod 6 to slide back and forth. The limiting groove opened inside the limiting block 10 allows both the tooth clip 5 and the slide rod 6 to slide within the limiting groove. The tooth clip 5 is locked inside the limiting groove, connecting the first connector 1 and the second connector 2. Pressing the pull rod 8 causes the slide rod 6 to push the tooth clip 5 downward, thus sliding the tooth clip 5 out of the limiting groove and disconnecting the first connector 1 and the second connector 2. The positioning rod 9 fixed at one end of the slide rod 6 can prevent the slide rod 6 from detaching from the first connector 1. One end of the second connector 2 is fixed. The sealing strip 11 prevents liquid from entering the interior of the first connector 1 and the second connector 2. By rotating the knob 12, the first gear 13 is driven to rotate. The second gear 14, which meshes with the two ends of the first gear 13, rotates with the first gear 13. The rotation of the second gear 14 drives the bidirectional lead screw 15 to rotate. The second fixing block 16 is threadedly connected to the outer wall of the bidirectional lead screw 15. At the same time, the clamping block 17 limits the second fixing block 16 so that when the bidirectional lead screw 15 rotates, the second fixing block 16 can drive the clamping block 17 to move up and down, thereby achieving the clamping effect. The heating strip 19 is placed inside the wire harness 18 to fix the heating strip 19 for a second time.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

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