Electric furnace capable of quickly replacing electric furnace wire
Through the design of the inner ring and lifting handle structure, combined with the ceramic coating, the electric heating wire can be quickly replaced and heated efficiently, solving the problem of inconvenient electric heating wire replacement and improving the maintenance efficiency and heating performance of the electric furnace.
Patent Information
- Application Number
- CN202422101315.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-08-28
AI Technical Summary
Existing electric furnaces do not have the function of quickly replacing heating coils, which makes the replacement process troublesome and time-consuming, affecting maintenance efficiency and the service life of the electric furnace.
The design incorporates an inner ring and a lifting handle structure, along with a ceramic-coated inner ring surface, enabling convenient connection and disassembly of the heating element. A dual insulation design also enhances heating efficiency.
It simplifies the process of replacing heating coils, improves the ease and reliability of operation, extends the service life of the electric furnace, and enhances heating efficiency and stability.
Smart Images

Figure CN223623373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric furnace technology, specifically to an electric furnace with a quick-change heating element. Background Technology
[0002] Electric furnaces primarily utilize resistance or electromagnetic induction to directly or indirectly transfer current to the molten material, causing it to melt or reach a high temperature. An electric furnace converts electrical energy into heat to heat the workpiece. Electric furnaces can be categorized into resistance furnaces, induction furnaces, electric arc furnaces, plasma furnaces, and electron beam furnaces. The heating method involves connecting electrodes to a power source, generating an electric arc discharge that causes heat exchange between the electrodes and the molten material. This converts electrical energy into heat energy, bringing the material to its melting point, and then gradually increasing the temperature until the desired temperature range is reached.
[0003] There are existing electric furnaces with quick-change heating elements, such as the Chinese authorized patent with announcement number CN220771876U, entitled (An Electric Furnace with Quick-Change Heating Element). It includes an electric furnace body, an inner plate inside the electric furnace body, heating elements installed on the inner plate, a bracket fixedly installed on the upper part inside the electric furnace body, a docking mechanism on the outer side of the electric furnace body, a power connection mechanism on the inner side of the electric furnace body, and a power connector fixedly installed at the rear end of the electric furnace body.
[0004] However, existing electric furnaces do not have the function of quickly replacing heating elements during use, which may lead to troublesome and time-consuming replacement of heating elements. Therefore, we propose an electric furnace with quick heating element replacement to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide an electric furnace with a quick-change heating element, in order to solve the problem mentioned in the background art that the existing furnaces do not have the function of quick heating element replacement, which may lead to troublesome and time-consuming heating element replacement.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric furnace with a quickly replaceable heating element, comprising a shell, a power socket provided on the front end face of the shell and welded to the shell, a base plate provided on the lower surface of the shell and welded to the shell, an inner ring provided on the upper end of the base plate, a heating base plate provided inside the inner ring, four locking blocks provided on the outer wall of the inner ring, four locking grooves provided around the connection between the base plate and the inner ring, the inner ring being engaged with the locking grooves on the base plate via the locking blocks, a limiting block provided above the locking blocks, one end of the limiting block being rotatably connected to the base plate via a rotating shaft.
[0007] Preferably, the bottom end of the base plate is provided with four pads, and the pads are fixedly connected to the base plate.
[0008] Preferably, the lower end of the pad is provided with anti-slip texture, and there are four anti-slip textures, which are fixedly connected to the pad.
[0009] Preferably, two lifting handles are provided at the middle of both ends of the inner ring.
[0010] Preferably, the upper end of the heating base plate is provided with a heating wire positioning ring seat, and the heating wire positioning ring seat is fixedly connected to the heating base plate.
[0011] Preferably, the heating wire positioning ring seat has a heating wire placement groove inside, and the heating wire placement groove is evenly distributed inside the heating wire positioning ring seat.
[0012] Preferably, there are two electrical connection holes at the front end of the space between the heating wire positioning ring seat and the heating wire placement groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model allows for convenient connection to the heating base plate and replacement of the heating element by setting an inner ring and a lifting handle, making the disassembly and assembly process simpler and more efficient. It simplifies the maintenance and replacement of the heating element, ensuring ease of operation and reliability. This allows for quick completion of tasks during electric furnace maintenance without spending too much time, reducing maintenance costs and extending the service life of the electric furnace. It solves the inconvenience of connection and maintenance in traditional electric furnaces, bringing a more efficient and convenient user experience.
[0015] 2. By adding a ceramic coating to the inner ring surface, the ceramic coating effectively improves the high-temperature resistance of the inner ring of the electric furnace, enabling it to withstand extremely high temperatures without deformation or damage. This ensures stable operation of the electric furnace in high-temperature environments. During use, the ceramic coating also exhibits good corrosion resistance, thereby extending the service life of the inner ring and maintaining the overall structural integrity of the electric furnace. This coating not only has excellent high-temperature resistance and insulation properties but also effectively prevents rapid heat loss. Combined with the double insulation design of the outer ring, it further enhances the insulation effect. As a result, the heating efficiency of the overall heating system is significantly improved, ensuring the stability and energy efficiency of the electric furnace during operation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the bottom structure of this utility model;
[0019] Figure 4 This is a partial enlarged view of point A of this utility model;
[0020] In the diagram: 1. Outer shell; 2. Power socket; 3. Base plate; 4. Foot pad; 5. Inner ring; 6. Lifting handle; 7. Heating base plate; 8. Heating wire positioning ring seat; 9. Heating wire placement slot; 10. Power connection hole; 11. Locking block; 12. Limiting block; 13. Rotating shaft; 14. Locking groove; 15. Anti-slip texture. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figure 1-4 This utility model provides an embodiment of an electric furnace with a quick-change heating element, comprising a shell 1, a power socket 2 provided on the front end face of the shell 1 and welded to the shell 1, a base plate 3 provided on the lower surface of the shell 1 and welded to the shell 1, an inner ring 5 provided on the upper end of the base plate 3, a heating base plate 7 provided inside the inner ring 5, four locking blocks 11 provided on the outer wall of the inner ring 5, and four slots 14 provided around the connection between the base plate 3 and the inner ring 5. The inner ring 5 is engaged with the slots 14 on the base plate 3 through the locking blocks 11. A limiting block 12 is provided above the locking blocks 11, and one end of the limiting block 12 is rotatably connected to the base plate 3 through a rotating shaft 13.
[0023] Please see Figure 3 The bottom of the base plate 3 is provided with four pads 4, which are fixedly connected to the base plate 3. The pads 4 mainly serve to improve the stability of the electric furnace, protect the electric furnace from environmental damage, and facilitate the movement and adjustment of the electric furnace.
[0024] Please see Figure 3 The lower end of the pad 4 is provided with anti-slip texture 15. There are four anti-slip textures 15, and the anti-slip textures 15 are fixedly connected to the pad 4, which enhances the friction between the pad and the contact surface, effectively prevents instability caused by sliding, and ensures the safety and stability of use.
[0025] Please see Figure 1 The inner ring 5 has two lifting handles 6 at the middle of both ends, which mainly improves the convenience of disassembly.
[0026] Please see Figure 2The upper end of the heating base plate 7 is provided with a heating wire positioning ring seat 8, and the heating wire positioning ring seat 8 is fixedly connected to the heating base plate 7, which can ensure the stable positioning of the heating wire and prevent it from shifting or deviating during operation, thereby ensuring the stability and safety of the equipment operation.
[0027] Please see Figure 2 The heating element positioning ring seat 8 has a heating element placement groove 9 inside, and the heating element placement groove 9 is evenly distributed inside the heating element positioning ring seat 8. The evenly distributed heating element can reduce the safety hazards caused by uneven temperature and ensure safety.
[0028] Please see Figure 2 A power connection hole 10 is provided at the front end between the heating element positioning ring seat 8 and the heating element placement groove 9. There are two power connection holes 10. The dual power connection holes enhance the flexibility and convenience of use, avoid the limitations that may be caused by a single power connection hole, and can effectively ensure a stable connection between the heating element and the power supply.
[0029] Working principle: First, the heating wire is placed in the heating wire placement slot 9, and the heating wire is fixed in the slot 9 by the heating wire positioning ring seat 8. Power is supplied by plugging into the power socket 2, and the heating wire is connected to the power connection hole 10 for power supply, thus heating the heating base plate 7. A ceramic coating is added to the surface of the inner ring 5, and the double insulation design with the outer shell 1 improves the heating effect. If the heating wire malfunctions during use, the rotating shaft 13 can be rotated to rotate the limiting block 12, releasing the limiting block from rotating through the rotating shaft 13 to the base plate 3. Then, the lifting handle 6 can be pulled upwards, causing the inner ring 5 structure to move upwards as a whole, allowing for quick and convenient repair or replacement.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An electric furnace with a quickly replaceable heating element, comprising a shell (1), wherein a power socket (2) is provided on the front end face of the shell (1) and the power socket (2) is welded to the shell (1), a base plate (3) is provided on the lower surface of the shell (1) and the base plate (3) is welded to the shell (1), an inner ring (5) is provided at the upper end of the base plate (3), and a heating base plate (7) is provided inside the inner ring (5), characterized in that: The outer wall of the inner ring (5) is provided with a locking block (11), and there are four locking blocks (11). The base plate (3) and the inner ring (5) are provided with a locking groove (14) around the connection. There are four locking grooves (14). The inner ring (5) is engaged with the locking block (11) and the locking groove (14) on the base plate (3). A limiting block (12) is provided above the locking block (11). One end of the limiting block (12) is rotatably connected to the base plate (3) through a rotating shaft (13).
2. The electric furnace with quickly replaceable heating coils according to claim 1, characterized in that: The bottom of the base plate (3) is provided with four pads (4), and the pads (4) are fixedly connected to the base plate (3).
3. The electric furnace with quickly replaceable heating coils according to claim 2, characterized in that: The lower end of the pad (4) is provided with anti-slip texture (15), and there are four anti-slip textures (15), which are fixedly connected to the pad (4).
4. The electric furnace with quickly replaceable heating coils according to claim 1, characterized in that: The inner ring (5) has two lifting handles (6) at the middle of both ends.
5. An electric furnace with a quickly replaceable heating coil as described in claim 1, characterized in that: The upper end of the heating base plate (7) is provided with a heating wire positioning ring seat (8), and the heating wire positioning ring seat (8) is fixedly connected to the heating base plate (7).
6. An electric furnace with a quickly replaceable heating element according to claim 5, characterized in that: The electric heating wire positioning ring seat (8) is provided with an electric heating wire placement groove (9) inside, and the electric heating wire placement groove (9) is evenly distributed inside the electric heating wire positioning ring seat (8).
7. An electric furnace with a quickly replaceable heating element according to claim 6, characterized in that: Place A power connection hole (10) is provided at the front end between the heating wire positioning ring seat (8) and the heating wire placement groove (9). There are two electrical connection holes (10).
Citation Information
Patent Citations
Electric furnace capable of quickly replacing electric furnace wire
CN220771876U