Horizontal roaster with terminal box

Abstract

The utility model belongs to the technical field of roasting furnace, especially involve a horizontal roasting furnace with terminal box, including roasting furnace main part, the front side wall and rear side wall of roasting furnace main part all are fixed with terminal box main part symmetry, the terminal box main part is composed of fixed box, multiple groups of insulating base, conductive copper plate and protection mechanism, roasting furnace main part symmetry sets up terminal box main part, and insulating base and conductive copper plate modularization grouping installation, solve traditional connection disorder, overhaul needs the problem of overall power failure, promote the efficiency of overhaul, in protection mechanism, the protective cover plate covers fixed groove, and the protective baffle plugging installation groove forms double plugging, cooperates the automatic reset function of spring drive, can effectively block dust, water vapor invasion and foreign matter impact, solve the pain point that the internal circuit is vulnerable to damage caused by the insufficient protection of terminal box, the elastic extrusion of plug-in mechanism and bolt locking double fixed can prevent the wire vibration and looseness, further guarantee the security and stability of circuit operation.

Description

Technical Field

[0001] This utility model belongs to the field of roasting furnace technology, and in particular relates to a horizontal roasting furnace with a junction box. Background Technology

[0002] As a core piece of equipment for high-temperature roasting of materials in the metallurgical and chemical industries, the horizontal roasting furnace requires its internal heating elements, temperature control sensors, and other electrical components to be connected to an external power source via a junction box. The reliability of the junction box's protection directly determines the safety of the roasting furnace's circuit operation. Currently, the junction boxes for horizontal roasting furnaces on the market generally have simplified protective structures, only meeting basic shielding requirements and failing to cope with the risks of contamination and impact in the production environment, thus failing to provide long-term protection for the internal circuits.

[0003] In practical applications, the shortcomings of existing junction boxes in terms of protection cause numerous problems for operators: On the one hand, the protective structure is mostly a "single-layer cover" type, only covering the top of the junction box, with no dedicated protection for the front wiring area. Dust and moisture in the production environment can easily seep into the box through the top gaps and front wiring holes, adhering to the insulating base and the surface of the conductive copper plate, leading to poor contact of conductive components. If tools or materials accidentally hit the junction box, the unprotected internal circuits may also be directly damaged, causing short circuits and leakage hazards. On the other hand, most protective covers require manual opening, closing, and resetting. If operators forget to close the covers after maintenance, the internal circuits will be exposed for a long time. Even if some covers have a reset function, they often cannot maintain a stable protective state due to reset misalignment or insufficient force, making it difficult to solve the problem of "insufficient protection" of the junction box. In view of this, we propose a horizontal roasting furnace with a junction box. Utility Model Content

[0004] The purpose of this invention is to provide a horizontal roasting furnace with a junction box to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a horizontal roasting furnace with a junction box, comprising:

[0006] The main body of the roasting furnace has junction box bodies symmetrically fixed to its front and rear side walls.

[0007] The junction box body consists of a fixed box, multiple sets of insulating bases, conductive copper plates, and a protective mechanism. The fixed box is fixed to the outer wall of the roasting furnace body. A fixing groove is provided on the upper surface of the fixed box. A slot one is provided at the front position of the fixing groove. The insulating base is inserted into the slot one. A slot two is provided in the fixing groove and at the rear side of the slot one. The conductive copper plate is inserted into the slot two.

[0008] The insulating base is provided with multiple evenly distributed wire insertion mechanisms.

[0009] Preferably, the lower surface of the fixing box is provided with a wire take-up groove, the front side wall of the fixing box is provided with a mounting groove, and the inner bottom surface of the mounting groove is provided with a plurality of evenly distributed wire routing holes, and the number of wire routing holes is consistent with the number of wire insertion mechanisms on the insulating base.

[0010] Preferably, the protective mechanism includes:

[0011] A protective cover is slidably mounted on the upper surface of a fixed box. Symmetrical sliding grooves are provided on the upper surface of the fixed box on both sides of the fixed groove. A sliding plate is slidably mounted in the sliding groove, and the top of the sliding plate is fixed to the lower surface of the protective cover. An elastic component for resetting the sliding plate is provided in the sliding groove.

[0012] Preferably, the protective mechanism further includes:

[0013] A protective baffle is slidably installed in the mounting groove, and the upper surface of the protective baffle is fixed to the lower surface of the protective cover.

[0014] Preferably, the elastic component includes:

[0015] Two sets of springs are symmetrically arranged in the slide groove, and the two ends of the springs are fixed to the inner wall of the slide groove and the front side wall of the sliding plate, respectively. A stabilizing rod is inserted into the spring, and the inner wall of the slide groove is provided with a storage groove to accommodate the sliding of the stabilizing rod.

[0016] Preferably, the insertion mechanism includes:

[0017] A rectangular groove is formed on the front side wall of an insulating base. An invisible groove communicating with the rectangular groove is formed on the upper surface of the insulating base. A wiring block is inserted and installed in the rectangular groove. The wiring block is provided with a fixing mechanism for fixing the wire.

[0018] Preferably, the fixing mechanism includes:

[0019] The extrusion plate has a C-shaped structure. The front side wall of the terminal block has a wire insertion hole coaxial with the rectangular groove. The upper surface of the terminal block has a threaded hole communicating with the wire insertion hole, and the threaded hole is coaxial with the concealed groove. A fastening bolt is inserted into the concealed groove, and the fastening bolt is threadedly engaged with the threaded hole. A conductor is fixed in the wire insertion hole, and the rear end of the conductor is fixed to a conductive copper plate.

[0020] Preferably, the extrusion plate is elastic, the lower part of the extrusion plate is inserted into the wire insertion hole, and the lower surface of the upper part of the extrusion plate is in contact with the upper surface of the wiring block.

[0021] The beneficial effects of this utility model are:

[0022] 1. This horizontal roasting furnace with junction boxes solves the problem of messy wiring and the need for overall power disconnection during maintenance in traditional roasting furnaces by symmetrically setting junction box bodies on the front and rear side walls of the furnace body and modularly grouping and installing insulating bases and conductive copper plates, thus greatly improving the efficiency of circuit maintenance.

[0023] 2. This horizontal roasting furnace with a junction box effectively addresses the pain points of insufficient junction box protection and susceptibility to contamination / impact damage to internal circuits through its "double sealing + automatic reset" protective mechanism: the protective cover can slide to cover the fixing groove, blocking dust and foreign objects from impacting the insulating base and conductive copper plate; the protective baffle slides simultaneously to seal the mounting groove, isolating impurities from the front, forming a "top cover + front baffle" double protection to prevent internal circuit contamination or damage from external forces; the spring in the slide can drive the sliding plate and protective cover to automatically reset, restoring the double sealing state without manual adjustment, ensuring that the junction box is always in a protected state when not in operation, avoiding the risk of circuit damage due to forgetting to close the protective structure, and significantly improving the reliability of junction box protection and the safety of internal circuit operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the main body of the junction box in this utility model;

[0026] Figure 3 This is a schematic diagram of the elastic component in this utility model;

[0027] Figure 4 This is an exploded view of the internal structure of the junction box in this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the back side of the insulating base in this utility model;

[0029] Figure 6 This is a schematic diagram of the wiring mechanism in this utility model;

[0030] Figure 7 This is a schematic diagram of the fixing mechanism in this utility model.

[0031] The markings in the diagram are as follows:

[0032] 1. Roasting furnace body; 2. Fixing box; 3. Fixing groove; 4. Slot 1; 5. Slot 2; 6. Insulating base; 7. Conductive copper plate; 8. Cable tray; 9. Mounting groove; 10. Cable routing hole; 11. Protective cover plate; 12. Slide groove; 13. Sliding plate; 14. Spring; 15. Stabilizing rod; 16. Protective baffle; 17. Rectangular groove; 18. Concealed groove; 19. Wiring block; 20. Extrusion plate; 21. Threaded hole; 22. Wire insertion hole; 23. Fastening bolt; 24. Conductor. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Figure 7 This application will be described in further detail.

[0034] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Example 1:

[0036] This embodiment provides a horizontal roasting furnace with a junction box, including:

[0037] The roasting furnace body 1 has junction box bodies symmetrically fixed to its front and rear side walls.

[0038] The junction box body consists of a fixed box 2, multiple sets of insulating bases 6, conductive copper plates 7 and a protective mechanism. The fixed box 2 is fixed to the outer wall of the roasting furnace body 1. A fixed groove 3 is provided on the upper surface of the fixed box 2. A slot 1 4 is provided at the front position of the fixed groove 3. The insulating base 6 is inserted into the slot 1 4. A slot 2 5 is provided in the fixed groove 3 and at the rear side of the slot 1 4. The conductive copper plates 7 are inserted into the slot 2 5.

[0039] Multiple evenly distributed insertion mechanisms are provided on the insulating base 6;

[0040] The lower surface of the fixing box 2 is provided with a wire take-up groove 8, the front side wall of the fixing box 2 is provided with a mounting groove 9, and the inner bottom surface of the mounting groove 9 is provided with a plurality of evenly distributed wire routing holes 10, and the number of wire routing holes 10 is consistent with the number of wire insertion mechanisms on the insulating base 6.

[0041] The outer wall of the roasting furnace body 1 is provided with protrusions for positioning and fixing box 2, and the fixing box 2 is fixed to the roasting furnace body 1 by threads.

[0042] The junction box body is symmetrically fixed to the front and rear side walls of the roasting furnace body 1. This ensures a balanced wiring distance for electrical components on both sides of the roasting furnace body 1, preventing excessive wiring length on one side and thus increasing the exposed wire area. The symmetrical layout also distributes the stress on the junction box body, preventing loosening of the connection between the fixing box 2 and the roasting furnace body 1 due to concentrated stress on one side. This also prevents poor contact or exposure of the insulating base 6 and conductive copper plate 7 within the fixing groove 3 due to body displacement. The fixing box 2 is fixed to the outer wall of the roasting furnace body 1 via threads. Compared to welding, this not only facilitates subsequent disassembly and maintenance of the junction box body but also ensures a tight fit between the fixing box 2 and the roasting furnace body 1 through thread pre-tightening, reducing the infiltration of external dust and moisture from the connection gap. The fixing groove 3 provides an installation cavity for the insulating base 6 and conductive copper plate 7. Its dimensions are adapted to the combined dimensions of the insulating base 6 and conductive copper plate 7, thus limiting the movement of the insulating base 6 and conductive copper plate 7. The lateral displacement of slot 7 prevents the insulating base 6 and conductive copper plate 7 from dislodging due to vibration. The insertion and engagement of slot 1 4 with the insulating base 6 and slot 2 5 with the conductive copper plate 7 can quickly achieve the positioning and installation of the insulating base 6 and conductive copper plate 7. The insertion structure can form a preliminary physical isolation to prevent external foreign objects from directly contacting the conductive parts of the insulating base 6 and conductive copper plate 7. The cable tray 8 can collect excess wires passing through the cable hole 10, preventing the wires from accumulating on the outside of the junction box body and being impacted and worn. At the same time, it reduces the exposed area of ​​the wires and reduces the risk of pollution. The mounting slot 9 provides installation space for the cable hole 10. The number of cable holes 10 is the same as the number of plug-in mechanisms, which can guide the wires to correspond one-to-one with the plug-in mechanisms, avoiding poor contact caused by wires crossing and tangling. The hole wall of the cable hole 10 can block larger external foreign objects from directly entering the interior of the junction box body, laying the foundation for the double sealing of the subsequent protection mechanism and initially alleviating the problem of internal circuits being easily contaminated and damaged by impact.

[0043] Example 2:

[0044] This embodiment provides a horizontal roasting furnace with a junction box. In addition to the technical solutions of the above embodiments, it also has the following technical features, and the protective mechanism includes:

[0045] The protective cover 11 is slidably installed on the upper surface of the fixed box 2. The upper surface of the fixed box 2 and the two sides of the fixed groove 3 are provided with symmetrical sliding grooves 12. A sliding plate 13 is slidably installed in the sliding groove 12, and the top of the sliding plate 13 is fixed to the lower surface of the protective cover 11. An elastic component for resetting the sliding plate 13 is provided in the sliding groove 12.

[0046] The resilient components include:

[0047] Two sets of springs 14 are symmetrically arranged in the slide groove 12, and the two ends of the springs 14 are fixed to the inner wall of the slide groove 12 and the front side wall of the sliding plate 13, respectively. A stabilizing rod 15 is inserted into the spring 14, and a storage groove for accommodating the sliding of the stabilizing rod 15 is provided on the inner wall of the slide groove 12.

[0048] When the protective cover 11 slides, it can completely cover or expose the fixing groove 3. When covered, it can prevent external dust and foreign objects from falling into the fixing groove 3 and contacting the insulating base 6 and the conductive copper plate 7, thus avoiding contamination or impact damage to the insulating base 6 and the conductive copper plate 7. The sliding cooperation between the sliding plate 13 and the sliding groove 12 can limit the movement trajectory of the protective cover 11, preventing the protective cover 11 from shifting and causing partial exposure of the fixing groove 3, thus ensuring the integrity of the protection range. In its natural state, the spring 14 pushes the sliding plate 13 with elastic force, so that the protective cover 11 stably covers the fixing groove 3 without the need for additional fixing structures. The stabilizing rod 15 can slide along the receiving groove, which can prevent the spring 14 from bending or twisting when it extends and retracts, ensuring the stability of the spring 14's reset force, and also prevent the spring 14 from failing due to abnormal deformation, thus ensuring the reliable operation of the automatic reset function of the protective cover 11.

[0049] Example 3:

[0050] This embodiment provides a horizontal roasting furnace with a junction box. In addition to the technical solutions of the above embodiments, it also has the following technical features, and the protective mechanism further includes:

[0051] The protective baffle 16 is slidably installed in the mounting groove 9, and the upper surface of the protective baffle 16 is fixed to the lower surface of the protective cover 11.

[0052] The protective baffle 16 slides synchronously with the protective cover 11. When the protective cover 11 covers the fixing groove 3, the protective baffle 16 can completely block the opening of the mounting groove 9, preventing external impurities from entering the internal contact wires or plug-in mechanism from the mounting groove 9, thus avoiding damage to the wire insulation layer or contamination of the plug-in mechanism. When the protective cover 11 moves to expose the fixing groove 3, the protective baffle 16 moves with it to expose the wiring hole 10 in the mounting groove 9, facilitating wire installation. The protective baffle 16 fits tightly against the inner wall of the mounting groove 9, which can buffer the impact force of the external force on the mounting groove 9, reduce the impact on the internal wires, and prevent the wires from coming out of the mounting groove 9. Together with the protective cover 11, it forms a double sealing structure of "top cover + front baffle", further improving the protection capability of the junction box and solving the problem of internal circuits being easily contaminated and damaged by impact.

[0053] Example 4:

[0054] This embodiment provides a horizontal roasting furnace with a junction box. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the wiring mechanism includes:

[0055] A rectangular groove 17 is formed on the front side wall of the insulating base 6. A hidden groove 18 connected to the rectangular groove 17 is formed on the upper surface of the insulating base 6. A wiring block 19 is inserted into the rectangular groove 17. A fixing mechanism for fixing the wire is provided on the wiring block 19.

[0056] Fixed mechanisms include:

[0057] The extrusion plate 20 has a C-shaped structure. The front side wall of the terminal block 19 has a wire insertion hole 22 coaxial with the rectangular groove 17. The upper surface of the terminal block 19 has a threaded hole 21 that communicates with the wire insertion hole 22. The threaded hole 21 is coaxial with the concealed groove 18. A fastening bolt 23 is inserted into the concealed groove 18 and is threadedly engaged with the threaded hole 21. A conductor 24 is fixed in the wire insertion hole 22 and the rear end of the conductor 24 is fixed to the conductive copper plate 7.

[0058] The extrusion plate 20 is elastic, and the lower part of the extrusion plate 20 is inserted into the wire insertion hole 22. The lower surface of the upper part of the extrusion plate 20 is in contact with the upper surface of the wiring block 19.

[0059] The rectangular groove 17 and the connector block 19 are tightly fitted together to prevent the connector block 19 from shifting within the rectangular groove 17, thus preventing the conductor 24 from being misaligned with the wire. This also prevents exposed conductive parts from being exposed in the fixing groove 3 due to displacement, reducing the risk of short circuits caused by dust and moisture. The depth of the concealed groove 18 can fully accommodate the head of the fastening bolt 23, preventing the head of the fastening bolt 23 from protruding from the surface of the insulating base 6 and being loosened by external objects or accidental contact. This ensures that the clamping force of the fixing mechanism on the wire remains stable, indirectly protecting the wire core in the insertion hole 22 from external forces. The connector block 19, as the carrier of the fixing mechanism, forms an isolation with the insulating material of the insulating base 6, preventing the current from the conductor 24 from being conducted to the insulating base 6 and causing leakage. At the same time, the structural strength of the connector block 19 can support the squeezing force of the fastening bolt 23, preventing the fixing mechanism from being damaged by deformation due to force. The elastic properties of the squeezing plate 20 allow it to automatically conform to the wire core after its lower part is inserted into the insertion hole 22, forming a preliminary clamp and preventing the wire from being misaligned during insertion. During operation or vibration, the wire core is dislodged from the insertion hole 22 to prevent direct contact with the inner wall of the fixing groove 3 and contamination. The threaded engagement between the fastening bolt 23 and the threaded hole 21 can gradually increase the squeezing force on the extrusion plate 20 through rotation, so that the extrusion plate 20 tightly wraps the wire core, forming a double fixation of "elastic pre-tightening + rigid locking". Even if the roasting furnace vibrates during operation, the wire core can stably adhere to the conductor 24, avoiding local overheating damage to the conductor 24 or the junction box 19 caused by poor contact. The fixed connection between the conductor 24 and the conductive copper plate 7 ensures a continuous conductive path, and the coaxial design of the conductor 24 and the insertion hole 22 allows the wire core to accurately align with the conductor 24 after insertion, reducing conductive loss. At the same time, the material properties of the conductor 24 can prevent oxidation and rust, avoiding conductive failure due to corrosion. With the protective cover plate 11 covering the fixing groove 3 and the protective baffle plate 16 sealing the mounting groove 9, all-round protection of the insertion mechanism, fixing mechanism and conductive components is achieved, completely solving the pain point of the internal circuit of the junction box being easily contaminated and damaged by impact.

[0060] Working principle:

[0061] When wiring the junction box, first push the protective cover 11 forward. The protective cover 11 drives the fixed sliding plate 13 to slide along the slide groove 12. During the sliding process, the sliding plate 13 compresses the spring 14 in the slide groove 12. At the same time, the protective cover 11 drives the protective baffle 16 to slide along the mounting groove 9 until the fixed groove 3 is fully exposed and the wiring hole 10 in the mounting groove 9 is exposed. Then, insert the external wire into the junction box body through the wiring hole 10. The excess wire length is stored in the wire take-up groove 8. After stripping the insulation layer at the end of the wire, insert the wire core into the insertion hole of the connector block 19. Inside the insertion hole 22, the elastic compression plate 20 deforms to initially clamp and fix the wire core. Then, the fastening bolt 23 is passed through the hidden groove 18 of the insulating base 6 and threaded into the threaded hole 21 of the connector block 19. During the tightening of the fastening bolt 23, the lower end of the fastening bolt 23 presses against the upper part of the compression plate 20, causing the compression plate 20 to further shrink and tightly wrap the wire core, ensuring stable contact between the wire core and the conductor 24 in the insertion hole 22. The rear end of the conductor 24 is fixedly connected to the conductive copper plate 7, thereby realizing the conductive connection between the wire and the conductive copper plate 7.

[0062] After wiring is completed, the protective cover 11 is released, and the compressed spring 14 in the slide groove 12 elastically rebounds, pushing the sliding plate 13 to slide in the opposite direction along the slide groove 12. The sliding plate 13 drives the protective cover 11 to reset and completely cover the fixing groove 3. At the same time, the protective cover 11 drives the protective baffle 16 to slide in the opposite direction along the mounting groove 9. After the protective baffle 16 resets, it completely seals the opening of the mounting groove 9, forming a double protection of "protective cover 11 + protective baffle 16". This prevents external dust, foreign objects or moisture from entering the junction box body and contaminating the insulating base 6, conductive copper plate 7 and wiring mechanism, and also prevents the internal circuit from being damaged by impact. When maintenance is required, the operation of pushing the protective cover 11 is repeated to expose the fixing groove 3 and wiring hole 10 again, which is convenient for maintenance of the insulating base 6, conductive copper plate 7 or wires.

[0063] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A horizontal roasting furnace with a junction box, characterized in that, include: The roasting furnace body (1) has junction box bodies symmetrically fixed on the front and rear side walls of the roasting furnace body (1); The junction box body consists of a fixed box (2), multiple sets of insulating bases (6), conductive copper plates (7) and a protective mechanism. The fixed box (2) is fixed to the outer wall of the roasting furnace body (1). A fixed groove (3) is provided on the upper surface of the fixed box (2). A slot one (4) is provided at the front side of the fixed groove (3). The insulating base (6) is inserted into the slot one (4). A slot two (5) is provided in the fixed groove (3) and located behind the slot one (4). The conductive copper plate (7) is inserted into the slot two (5). The insulating base (6) is provided with a plurality of evenly distributed plug-in mechanisms.

2. A horizontal roasting furnace with a junction box according to claim 1, characterized in that, The lower surface of the fixing box (2) is provided with a wire take-up groove (8), the front side wall of the fixing box (2) is provided with an installation groove (9), and the inner bottom surface of the installation groove (9) is provided with a plurality of evenly distributed wire routing holes (10), and the number of wire routing holes (10) is consistent with the number of wire insertion mechanisms on the insulating base (6).

3. A horizontal roasting furnace with a junction box according to claim 1, characterized in that, The protective mechanism includes: A protective cover (11) is slidably mounted on the upper surface of a fixed box (2). A symmetrical sliding groove (12) is provided on the upper surface of the fixed box (2) and on both sides of the fixed groove (3). A sliding plate (13) is slidably mounted in the sliding groove (12), and the top of the sliding plate (13) is fixed to the lower surface of the protective cover (11). An elastic component for resetting the sliding plate (13) is provided in the sliding groove (12).

4. A horizontal roasting furnace with a junction box according to claim 3, characterized in that, The protective mechanism also includes: The protective baffle (16) is slidably installed in the mounting groove (9), and the upper surface of the protective baffle (16) is fixed to the lower surface of the protective cover (11).

5. A horizontal roasting furnace with a junction box according to claim 3, characterized in that, The elastic component includes: Two sets of springs (14) are symmetrically arranged in the slide groove (12), and the two ends of the springs (14) are fixed to the inner wall of the slide groove (12) and the front side wall of the sliding plate (13), respectively. A stabilizing rod (15) is inserted into the spring (14), and the inner wall of the slide groove (12) is provided with a storage groove that can accommodate the sliding of the stabilizing rod (15).

6. A horizontal roasting furnace with a junction box according to claim 1, characterized in that, The insertion mechanism includes: A rectangular groove (17) is formed on the front side wall of an insulating base (6). An invisible groove (18) communicating with the rectangular groove (17) is formed on the upper surface of the insulating base (6). A wiring block (19) is inserted into the rectangular groove (17). A fixing mechanism for fixing wires is provided on the wiring block (19).

7. A horizontal roasting furnace with a junction box according to claim 6, characterized in that, The fixing mechanism includes: The extrusion plate (20) has a C-shaped structure. The front side wall of the connector block (19) has a wire insertion hole (22) coaxial with the rectangular groove (17). The upper surface of the connector block (19) has a threaded hole (21) connected to the wire insertion hole (22). The threaded hole (21) is coaxial with the concealed groove (18). A fastening bolt (23) is inserted into the concealed groove (18). The fastening bolt (23) is threadedly engaged with the threaded hole (21). A conductor (24) is fixed in the wire insertion hole (22). The rear end of the conductor (24) is fixed to the conductive copper plate (7).

8. A horizontal roasting furnace with a junction box according to claim 7, characterized in that, The extrusion plate (20) is elastic, and the lower part of the extrusion plate (20) is inserted into the wire insertion hole (22). The lower surface of the upper part of the extrusion plate (20) is in contact with the upper surface of the wiring block (19).

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