A heating rod with easily removable screws

CN224709813UActive Publication Date: 2026-09-01QINGZHOU WANBANG ELECTRICAL EQUIP CO LTD
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Patent Information

Application Number
CN202521941589.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-09-01
Estimated Expiration
2035-09-10

AI Technical Summary

Technical Problem

[0003]现有技术中的加热棒在对加热线圈进行更换时,通常需要对加热棒整体进行拆卸,拆卸前需先拆解加热棒的外壳、连接线、固定组件等多个部件,步骤繁琐,操作时间较长,降低了工作效率

Benefits of technology

[0016]This invention utilizes a conductive block that receives current, directing it through a conductive sheet into a conductive wire. The conductive wire is simultaneously connected to a heating coil, which generates heat to dissipate the stuck bolt. Once the bolt expands and softens, it can be easily removed with a wrench or similar tool. A first self-tightening screw is threaded inside the semi-shell, simultaneously connected to a protective plate to secure it and prevent foreign objects from entering and damaging the interior. The conductive sheet and conductive block are fixed by the self-tightening screw, which slides within the semi-shell. When the heating coil needs replacement, the first and second self-tightening screws can be manually removed, allowing replacement without disassembling the entire device. This reduces operational steps and improves work efficiency.

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Abstract

This utility model relates to the field of heating rod technology and discloses a heating rod with easily removable screws, including a semi-shell. When a conductive block receives current, the current is guided through a conductive sheet into a conductive wire. The conductive wire is simultaneously fixedly connected to a heating coil, causing the heating coil to generate heat energy to heat the jammed bolt. Once the screw expands and softens, it can be easily removed with a wrench or other tools. A first self-tightening screw is threaded inside the semi-shell and is also threaded to a protective plate, securing the plate and preventing foreign objects from entering and damaging the interior. The conductive sheet and conductive block are fixed by the self-tightening screw, which slides inside the semi-shell. When the heating coil needs to be replaced, the first self-tightening screw and the self-tightening screw can be manually removed, allowing for replacement without disassembling the entire device, reducing operational steps and improving work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of heating rod technology, and in particular to a heating rod with easily removable screws. Background Technology

[0002] A heating rod is a tool or device that outputs heat through electricity, electromagnetic induction, or other energy sources to heat a target object. It is widely used in various scenarios such as industry, maintenance, and home use. Its core function is to quickly and accurately provide heat to a specific object or space to meet needs such as heating, defrosting, and assisting in disassembly. In the maintenance field, it is often used to deal with rusted or stuck screws, bolts, and other parts—by heating, the metal parts expand, breaking down rust or interference fits, reducing the difficulty of disassembly, and avoiding damage to parts caused by forceful disassembly. In industrial scenarios, it can be used for local heat treatment of metal parts, antifreeze and defrosting of pipelines, or to provide auxiliary heating for materials in the production process. In home scenarios, small heating rods can be used to maintain the water temperature in aquariums and heat liquids in small containers.

[0003] In existing technologies, when replacing the heating coil, the heating rod usually needs to be completely disassembled. Before disassembly, multiple parts such as the outer shell, connecting wires, and fixing components of the heating rod need to be disassembled. The process is cumbersome, takes a long time, and reduces work efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a heating rod with easily removable screws.

[0005] This utility model is achieved using the following technical solution: a heating rod with easily detachable screws, comprising a semi-shell, a conductive block fixedly connected to the inner wall of the semi-shell, a self-tightening screw threadedly connected to the inside of the conductive block, a conductive plate threadedly connected to the self-tightening screw, a conductive wire fixedly connected to the outer wall of the conductive plate, a heating coil fixedly connected to the end of the conductive wire away from the conductive plate, a first self-tightening screw threadedly connected to the inside of the semi-shell, and a protective plate threadedly connected to the first self-tightening screw.

[0006] As a further improvement to the above solution, four first self-tightening screws are provided, and the four first self-tightening screws are symmetrically arranged with the half-shell as the center. Two protective plates are provided, and the two protective plates are symmetrically arranged with the half-shell as the center.

[0007] With the above technical solution, when the conductive block receives current, it guides the current through the conductive sheet into the conductive wire. The conductive wire is simultaneously fixedly connected to the heating coil, so that the heating coil is energized to generate heat energy to heat the jammed bolt. When the screw expands and softens, the jammed screw can be easily removed with a wrench or other tools. When the heating coil needs to be replaced, the first self-tightening screw and the self-tightening screw can be manually disassembled, and the heating coil can be replaced without disassembling the entire equipment, reducing the operation steps and improving work efficiency.

[0008] As a further improvement to the above solution, a circuit board is fixedly connected to the inner wall of the semi-shell, and a connecting block is fixedly connected to the inner wall of the semi-shell.

[0009] As a further improvement to the above solution, a high-frequency transformer is fixedly connected to the outer wall of the connecting block, and a dustproof plate is fixedly connected to the inner wall of the semi-shell.

[0010] As a further improvement to the above solution, a second connecting block is fixedly connected to the inner wall of the semi-shell, and a cooling fan is fixedly connected to the outer wall of the second connecting block.

[0011] Through the above technical solution, a dustproof plate and a connecting block two are fixed on the inner wall of the semi-shell. The dustproof plate can block dust from entering the equipment, reduce the corrosion of circuit components by dust, and extend the service life of the equipment. At the same time, the connecting block two is fixed to the cooling fan. When the cooling fan is powered on, it runs to dissipate heat and cool down the internal electrical components, thus preventing the equipment from being damaged due to overheating.

[0012] As a further improvement to the above solution, an anti-slip sleeve is fixedly connected to the outer wall of the semi-shell. Two anti-slip sleeves are provided, and the two anti-slip sleeves are symmetrically arranged with the semi-shell as the center.

[0013] As a further improvement to the above solution, a control switch is fixedly connected to the top of the semi-shell, and a power cord is fixedly connected inside the semi-shell.

[0014] Through the above technical solutions, the anti-slip sleeve improves the stability of the operator's grip and prevents the equipment from slipping.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a conductive block that receives current, directing it through a conductive sheet into a conductive wire. The conductive wire is simultaneously connected to a heating coil, which generates heat to dissipate the stuck bolt. Once the bolt expands and softens, it can be easily removed with a wrench or similar tool. A first self-tightening screw is threaded inside the semi-shell, simultaneously connected to a protective plate to secure it and prevent foreign objects from entering and damaging the interior. The conductive sheet and conductive block are fixed by the self-tightening screw, which slides within the semi-shell. When the heating coil needs replacement, the first and second self-tightening screws can be manually removed, allowing replacement without disassembling the entire device. This reduces operational steps and improves work efficiency.

[0017] This invention uses a dustproof plate and a connecting block two fixed to the inner wall of the semi-shell. The dustproof plate can prevent dust from entering the equipment, reduce the corrosion of circuit components by dust, and extend the service life of the equipment. At the same time, the connecting block two is fixed to the cooling fan. When the cooling fan is powered on, it runs to dissipate heat and cool down the internal electrical components, thus preventing the equipment from being damaged due to overheating. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the conductive sheet structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the protective plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the high-frequency transformer structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the anti-slip sleeve structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Semi-shell; 2. Conductive block; 3. Self-tightening screw; 4. Conductive sheet; 5. Conductive wire; 6. Heating coil; 7. First self-tightening screw; 8. Protective plate; 9. Circuit board; 10. Connecting block one; 11. High-frequency transformer; 12. Dustproof plate; 13. Connecting block two; 14. Cooling fan; 15. Anti-slip sleeve; 16. Control switch; 17. Power cord. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 This embodiment provides a heating rod with easily removable screws, comprising a semi-shell 1, a conductive block 2 fixedly connected to the inner wall of the semi-shell 1, a self-tightening screw 3 threadedly connected to the inside of the conductive block 2, a conductive sheet 4 threadedly connected to the self-tightening screw 3, a conductive wire 5 fixedly connected to the outer wall of the conductive sheet 4, a heating coil 6 fixedly connected to the end of the conductive wire 5 away from the conductive sheet 4, a first self-tightening screw 7 threadedly connected to the inside of the semi-shell 1, and a protective plate 8 threadedly connected to the first self-tightening screw 7.

[0028] There are four first self-tightening screws 7, which are symmetrically arranged around the half-shell 1. There are two protective plates 8, which are symmetrically arranged around the half-shell 1.

[0029] A circuit board 9 is fixedly connected to the inner wall of the semi-shell 1, and a connecting block 10 is fixedly connected to the inner wall of the semi-shell 1.

[0030] A high-frequency transformer 11 is fixedly connected to the outer wall of the connecting block 10, and a dustproof plate 12 is fixedly connected to the inner wall of the semi-shell 1.

[0031] A connecting block 2 13 is fixedly connected to the inner wall of the semi-shell 1, and a cooling fan 14 is fixedly connected to the outer wall of the connecting block 2 13.

[0032] The outer wall of the semi-shell 1 is fixedly connected with an anti-slip sleeve 15. There are two anti-slip sleeves 15, which are symmetrically arranged with the semi-shell 1 as the center.

[0033] A control switch 16 is fixedly connected to the top of the semi-shell 1, and a power cord 17 is fixedly connected inside the semi-shell 1.

[0034] The implementation principle of a heating rod with easily removable screws in this embodiment is as follows: Two half-shells 1 are provided, and the two half-shells 1 are fixed together by screws. Anti-slip sleeves 15 are fixed to the outer wall of the half-shells 1. The anti-slip sleeves 15 improve the stability of the operator's grip and prevent the equipment from slipping. At this time, the operator connects the power cord 17 to the power supply, and then starts the equipment to start running by controlling the switch 16. At this time, a dustproof plate 12 and a connecting block 2 13 are fixed to the inner wall of the half-shells 1. The dustproof plate 12 can block dust from entering the equipment and reduce the corrosion of the circuit components by dust, thus extending the service life of the equipment. At the same time, the connecting block 2 13 is fixed to the cooling fan 14. At this time, the cooling fan 14 is powered on and runs, thereby cooling the internal electrical components and preventing the equipment from being damaged due to overheating. At the same time, the main circuit board 9 generates a high-frequency voltage after receiving the power supply. Through the wires, the high-temperature voltage is conducted to the high-frequency transformer 11. The high-frequency transformer 11 is fixed to the inner wall of the half-shells 1 by the connecting block 10. The high-frequency transformer 11 steps down the high-frequency voltage and conducts the current to the conductive block 2. When the conductive block 2 receives the current, it guides the current through the conductive sheet 4 into the conductive wire 5. The conductive wire 5 is simultaneously fixedly connected to the heating coil 6, thereby energizing the heating coil 6 to generate heat energy, which heats the jammed bolt. After heating for a period of time, the screw expands and softens, at which point the jammed screw can be easily removed with a wrench or other tools. The first self-tightening screw 7 is threadedly connected inside the semi-outer shell 1. The first self-tightening screw 7 is also threadedly connected to the protective plate 8, thereby fixing the protective plate 8 and preventing foreign objects from entering the semi-outer shell 1 and causing damage to the interior. At the same time, the conductive sheet 4 and the conductive block 2 are fixed by the self-tightening screw 3, which slides inside the semi-outer shell 1. When it is necessary to replace the heating coil 6, the first self-tightening screw 7 and the self-tightening screw 3 can be manually disassembled, thus allowing the heating coil 6 to be replaced without disassembling the entire equipment, reducing the operation steps and improving work efficiency.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A heating rod with easily removable screws, characterized in that, The device includes a semi-shell (1), a conductive block (2) is fixedly connected to the inner wall of the semi-shell (1), a self-tightening screw (3) is threadedly connected to the inside of the conductive block (2), a conductive sheet (4) is threadedly connected to the self-tightening screw (3), a conductive wire (5) is fixedly connected to the outer wall of the conductive sheet (4), a heating coil (6) is fixedly connected to the end of the conductive wire (5) away from the conductive sheet (4), a first self-tightening screw (7) is threadedly connected to the inside of the semi-shell (1), and a protective plate (8) is threadedly connected to the first self-tightening screw (7).

2. A heating rod with easily removable screws as described in claim 1, characterized in that: There are four first self-tightening screws (7), and the four first self-tightening screws (7) are symmetrically arranged with the half shell (1) as the center. There are two protective plates (8), and the two protective plates (8) are symmetrically arranged with the half shell (1) as the center.

3. A heating rod with easily removable screws as described in claim 2, characterized in that: The inner wall of the semi-shell (1) is fixedly connected to a circuit board (9), and the inner wall of the semi-shell (1) is fixedly connected to a connecting block (10).

4. A heating rod with easily removable screws as described in claim 3, characterized in that: A high-frequency transformer (11) is fixedly connected to the outer wall of the connecting block (10), and a dustproof plate (12) is fixedly connected to the inner wall of the semi-shell (1).

5. A heating rod with easily removable screws as described in claim 1, characterized in that: The inner wall of the semi-shell (1) is fixedly connected to a connecting block two (13), and the outer wall of the connecting block two (13) is fixedly connected to a cooling fan (14).

6. A heating rod with easily removable screws as described in claim 1, characterized in that: The outer wall of the semi-shell (1) is fixedly connected with an anti-slip sleeve (15). There are two anti-slip sleeves (15), which are symmetrically arranged with the semi-shell (1) as the center.

7. A heating rod with easily removable screws as described in claim 1, characterized in that: A control switch (16) is fixedly connected to the top of the semi-shell (1), and a power cord (17) is fixedly connected inside the semi-shell (1).