A cable heat shrink sleeve heating device

Abstract

The utility model belongs to cable heat shrinkable sleeve heating technical field especially for a kind of cable heat shrinkable sleeve heating device, including heating gun, handle and power key.The utility model is heated to cable heat shrinkable sleeve by heating gun, after air current is inhaled from air inlet, heated air current is delivered to heating air inlet place and is discharged by heating wire inside heating gun.When hot air current contacts cable heat shrinkable sleeve, it is divided into two air currents, one air current is left, and is guided to the back of cable heat shrinkable sleeve by baffle and flow guide shell diversion, in this process, the axial diffusion of hot air current is blocked by two groups of embedded strips.Another air current is right to cable heat shrinkable sleeve, and the intensity of right air current is far less than the intensity of left air current by the triangular design of heating air inlet, and small convection is generated when the left and right air currents contact.If the shape and size of cable heat shrinkable sleeve are different, operator can install round hoop according to its specific shape and size.

Description

Technical Field

[0001] This utility model relates to the field of cable heat shrink tubing heating technology, specifically a cable heat shrink tubing heating device. Background Technology

[0002] Heating technology for cable heat shrink tubing is a key insulation and sealing solution in modern electrical engineering. Its core value lies in shrinking polymer materials through directional heat energy, providing all-weather protection for vulnerable parts such as cable joints and wire harness terminals.

[0003] Current technologies have the following shortcomings: The current cable insulation treatment field mainly uses two methods for heating heat-shrink tubing: traditional oven baking and handheld hot air gun heating. Oven heating is suitable for batch processing, achieving uniform heating through a closed-loop heat circulation, but it has limitations such as large equipment size and high energy consumption. Handheld hot air guns, with their lightweight design (typically <1.5kg) and ready-to-use operation, have become the mainstream choice for on-site construction, especially suitable for confined spaces or high-altitude operations. However, existing hot air guns generally require manual continuous rotation of the tubing (recommended speed 2-3 revolutions per minute) to ensure uniform shrinkage. This working mode has drawbacks: a narrow heat radiation range, the need for frequent nozzle rotation, and high labor intensity. Utility Model Content

[0004] To address the shortcomings of existing technologies with a narrow heat radiation range, this invention provides a cable heat shrink tubing heating device, which solves the problem of high labor intensity caused by the need for frequent nozzle rotation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heating device for cable heat shrink tubing, including a heating gun, a handle, and a power button for controlling the start and stop of the heating gun. A guide shell is provided at the front end of the heating gun. When the heating gun sends out heat through the front end, the heat flow passes through the outside of the cable heat shrink tubing. The heat flow passing through the side end is guided to the rear end of the cable heat shrink tubing by the bending design of the guide shell.

[0006] A circular hoop is fitted around the heating air outlet of the heating gun, and a side cover plate is provided at the side end of the circular hoop to connect the circular hoop and the guide shell.

[0007] As a preferred technical solution of this utility model, both the inner and outer sides of the flow guide shell are curved, and the concave side is aligned with the front end of the heating gun.

[0008] As a preferred embodiment of this utility model, the heating gun has an air inlet at the rear end and a heating air outlet at the front end for discharging hot airflow.

[0009] As a preferred technical solution of this utility model, a baffle for initially guiding the hot airflow is provided on the side end of the side cover plate. The baffle has a wedge-shaped structure with an internal cavity, and the inclined surface extends from the side of the heating air outlet to the side of the guide shell.

[0010] As a preferred technical solution of this utility model, two embedded strips are provided on the concave side of the flow guide shell to prevent the axial diffusion of hot airflow. The embedded strips are distributed vertically, and the installation path of the embedded strips matches the concave surface of the flow guide shell.

[0011] As a preferred technical solution of this utility model, a retaining ring is provided on the inner wall of the circular hoop, and multiple sets of annular grooves are opened on the outer side of the heating air outlet for the retaining ring on the inner side of the circular hoop to engage.

[0012] As a preferred technical solution of this utility model, the heating air outlet is in the shape of an equilateral triangle, with one right corner facing the side cover plate.

[0013] Compared with the prior art, this utility model provides a heating device for cable heat shrink tubing, which has the following beneficial effects:

[0014] A heating device for cable heat shrink tubing heats the cable heat shrink tubing with a heating gun. Airflow is drawn in through the air inlet and then transported to the heating outlet by a heating wire inside the gun. When the hot airflow contacts the cable heat shrink tubing, it is divided into two streams. One stream flows to the left and is guided by a baffle and a guide shell to the back of the cable heat shrink tubing. During this process, two sets of internal strips block the axial diffusion of the hot airflow. The other stream flows to the right side of the cable heat shrink tubing. Due to the triangular design of the heating outlet, the airflow intensity on the right is much lower than that on the left, creating a slight convection when the two streams come into contact. If the shape and size of the cable heat shrink tubing are different, the operator can install a circular clamp according to its specific shape and size, switching it to the outside of the annular groove at different positions, thereby controlling the distance between the heating outlet and the guide shell (the space that the cable heat shrink tubing can accommodate).

[0015] Through the above settings and processes, this structure, compared to existing cable heat shrink tubing heating devices, achieves bidirectional heating by setting a guide structure at the front end of the air outlet, allowing the hot airflow passing through the side of the cable heat shrink tubing to be guided to the back of the cable heat shrink tubing. This not only effectively reduces workload (reducing the turning frequency) but also prevents material damage caused by excessive local temperature differences. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the installation position of the power button on the side of this utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the circular hoop and heating air outlet of this utility model;

[0019] Figure 4 This is a schematic diagram showing the installation position of the side cover plate and the inner strip of this utility model;

[0020] Figure 5 This is a schematic diagram of the front view of one side of the integral heating air vent of this utility model.

[0021] In the diagram: 1. Heating gun; 2. Handle; 3. Gear switch; 4. Power cord; 5. Power button; 6. Air inlet; 7. Heating air outlet; 8. Side cover; 9. Air guide shell; 10. Round hoop; 11. Baffle; 12. Embedded strip; 13. Snap ring; 14. Annular groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 In this embodiment: a heating device for cable heat shrink tubing includes a heating gun 1, a handle 2, and a power button 5 for controlling the start and stop of the heating gun 1. A guide shell 9 is provided at the front end of the heating gun 1. When the heating gun 1 sends out heat through the front end, the heat flow passes through the outside of the cable heat shrink tubing. The heat flow passing through the side end is guided to the rear end of the cable heat shrink tubing by the bending design of the guide shell 9, so as to simultaneously heat the rear end, thereby effectively preventing deformation and misalignment caused by excessive local temperature difference.

[0024] The guide shell 9 has an arc-shaped curved design on both the inner and outer sides (e.g. Figure 4 As shown), the concave side should be aligned with the front end of the heating gun 1.

[0025] An air inlet 6 is set at the rear end of the heating gun 1, and a heating air outlet 7 is set at the front end of the heating gun 1 to exhaust the hot airflow. This can stabilize the heating path of the heating gun 1.

[0026] In order to make the hot airflow correspond to the installation position of the guide shell 9, a circular hoop 10 is fitted on the outside of the heating air outlet 7 of the heating gun 1, and a side cover plate 8 is provided on the side end of the circular hoop 10 to connect the circular hoop 10 and the guide shell 9. This ensures that the installation position of the guide shell 9 is always consistent with the front end of the heating gun 1, thereby further ensuring that the guide path will not be deviated.

[0027] To reduce the loss of heating airflow during the guiding process, a baffle 11 is provided at the side end of the side cover plate 8. The baffle 11 has a wedge-shaped structure and an internal cavity (such as...). Figure 4 As shown in the figure, the slope extends from the side of the heating air vent 7 to the side of the guide shell 9, which can effectively prevent the hot airflow from spreading at the air vent.

[0028] Two embedded strips 12 are provided on the concave side of the flow guide shell 9, and the embedded strips 12 are distributed vertically (e.g., ...). Figure 4 As shown in the figure, the installation path of the inner strip 12 matches the concave surface of the guide shell 9. This can further prevent the axial diffusion of the airflow when the hot airflow passes through the inner side of the guide shell 9, thereby maintaining the effective temperature of the heated airflow.

[0029] Since the guide shell 9 is semi-enclosed and installed at the front end of the heating air outlet 7, the insertion position of the cable heat shrink tubing is limited to between the heating air outlet 7 and the guide shell 9. In order to expand the applicable size and shape of the cable heat shrink tubing, a retaining ring 13 is provided on the inner wall of the circular hoop 10, and multiple sets of annular grooves 14 are opened on the outer side of the heating air outlet 7 for the retaining ring 13 on the inner side of the circular hoop 10 to engage. By installing the circular hoop 10 on the outer side of the annular grooves 14 at different positions, the distance between the guide shell 9 and the heating air outlet 7 can be adjusted, thereby making it suitable for cable heat shrink tubing of more sizes and shapes. When the size of the cable heat shrink tubing is large, the distance between the guide shell 9 and the heating air outlet 7 can be increased, and vice versa when the size of the cable heat shrink tubing is small, so as to ensure that the distance between the hot airflow and the back of the cable heat shrink tubing is not too far, and thus ensure the heating effect of the hot airflow on the back of the cable heat shrink tubing.

[0030] The heating air vent 7 has an overall equilateral triangular structure, with one right corner facing the side cover plate 8 (e.g. Figure 5 As shown), this design allows the heating airflow to cover the guide shell 9 as much as possible and reduces the airflow passing through the right side of the cable heat shrink tubing. This design also helps to prevent the direct current blown out of the heating air outlet 7 from contacting the airflow exiting from the side of the guide shell 9, thereby reducing the convection effect (increasing airflow diffusion).

[0031] In this embodiment, the heat shrink tubing of the cable is heated by a heating gun 1. Airflow is drawn in through the air inlet 6 and then transported to the heating outlet 7 by the heating wire inside the heating gun 1. When the hot airflow contacts the heat shrink tubing, it is divided into two streams. One stream flows to the left and is guided by the baffle 11 and the guide shell 9 to the back of the heat shrink tubing. During this process, the upper and lower sets of embedded strips 12 block the axial diffusion of the hot airflow. The other stream flows to the right side of the heat shrink tubing. Due to the triangular design of the heating outlet 7, the airflow intensity on the right is much lower than that on the left, resulting in slight convection when the two streams come into contact. If the shape and size of the heat shrink tubing are different, the operator can install the circular clamp 10 according to its specific shape and size, allowing it to switch on the outside of the annular groove 14 at different positions, thereby controlling the distance between the heating outlet 7 and the guide shell 9 (the space that the heat shrink tubing can accommodate).

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A heating device for heat-shrinkable cable tubing, comprising a heating gun (1), a handle (2), and a power button (5) for controlling the start and stop of the heating gun (1), characterized in that: The heating gun (1) is provided with a flow guide shell (9) at the front end. When the heating gun (1) sends out the heat flow through the front end, the heat flow passes through the outside of the cable heat shrink sleeve. The heat flow passing through the side end is guided to the rear end of the cable heat shrink sleeve by the bending design of the flow guide shell (9). A circular hoop (10) is fitted on the outside of the heating air outlet (7) of the heating gun (1), and a side cover plate (8) is provided on the side end of the circular hoop (10) to connect the circular hoop (10) and the guide shell (9).

2. The cable heat shrink tubing heating device according to claim 1, characterized in that: The guide shell (9) has an arc-shaped curved shape on both the inner and outer sides, and the concave side is aligned with the front end of the heating gun (1).

3. The cable heat shrink tubing heating device according to claim 1, characterized in that: The heating gun (1) has an air inlet (6) at its rear end and a heating air outlet (7) at its front end for discharging hot air.

4. The cable heat shrink tubing heating device according to claim 1, characterized in that: The side cover plate (8) is provided with a baffle (11) for initially guiding the hot airflow. The baffle (11) has a wedge-shaped structure with an internal cavity and an inclined surface extending from the side of the heating air vent (7) to the side of the guide shell (9).

5. The cable heat shrink tubing heating device according to claim 3, characterized in that: Two embedded strips (12) are provided on the concave side of the flow guide shell (9) to prevent the axial diffusion of hot airflow. The embedded strips (12) are distributed vertically, and the installation path of the embedded strips (12) matches the concave surface of the flow guide shell (9).

6. The cable heat shrink tubing heating device according to claim 2, characterized in that: The inner wall of the circular hoop (10) is provided with a retaining ring (13), and multiple sets of annular grooves (14) are opened on the outside of the heating air vent (7) for the retaining ring (13) inside the circular hoop (10) to engage.

7. The cable heat shrink tubing heating device according to claim 5, characterized in that: The heating air vent (7) is in the shape of an equilateral triangle, with one right corner facing the side cover plate (8).

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