Box-type resistance furnace convenient to use

Abstract

The utility model discloses a box-type resistance furnace convenient to use, which belongs to the field of box-type resistance furnaces and is characterized in that a lock catch handle is mounted at the edge of the front end of a sealing door through a connecting shaft, and the sealing door is connected with a furnace box by rotating the lock catch handle; a through hole is formed in the free end of the lock catch handle, the sealing door is connected with a first winding reel and a second winding reel through another two connecting shafts, a winding wire is connected into the through hole, the winding wire penetrates through the first winding reel to be wound on the second winding reel, the outer end of the second winding reel is connected with a driving motor, and the driving motor is connected with the sealing door through a mounting support. According to the box-type resistance furnace convenient to use, the sealing door is operated and controlled by the electric opening equipment through the button, so that the manual operation time and labor are reduced, and the loading and unloading efficiency is improved. The automatic process ensures heating safety and reduces the scalding risk. Physical burdens of operators are reduced, labor intensity is reduced, operation is visual and simple, and training time and cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of box resistance furnace, especially a box resistance furnace convenient to use. BACKGROUND

[0002] The box resistance furnace is a commonly used electric heating equipment, mainly used for the smelting, heat treatment, annealing and tempering processes of metal materials. It uses resistance wire heating, and the furnace body is usually composed of a box, heating elements, insulation materials and a control system. The box resistance furnace has the characteristics of high temperature control precision, fast heating speed and good temperature uniformity, and is widely used in industrial production fields.

[0003] When using the box resistance furnace for heating treatment, the high-temperature environment around the furnace body poses a certain safety risk to the operator. Because the temperature around the furnace body is extremely high, the temperature of the operating components such as the handle will also rise, which requires the operator to take additional safety measures, such as wearing high-temperature resistant gloves and using other heat insulation equipment, to prevent burns or other heat injuries. However, the implementation of such safety measures also brings inconvenience to the operation.

[0004] Firstly, wearing these heat insulation equipment makes the operator's movements less flexible, affecting the accuracy and speed of the operation, thereby reducing the overall work efficiency.

[0005] Secondly, long-term wearing of these equipment for repetitive operations increases the physical exertion of the operator, leading to an increase in labor intensity, which may cause fatigue accumulation of the operator, affecting his work state and long-term physical and mental health.

[0006] Therefore, in order to improve work efficiency and protect the health of the operator, it may be necessary to consider improving the design of the existing heat insulation equipment to make it more comfortable, or to develop new technologies to reduce the temperature of the operating components, thereby reducing the dependence on heat insulation equipment. INVENTION CONTENTS

[0007] The main purpose of the utility model is to provide a box resistance furnace convenient to use, which can effectively solve the problems raised in the background art.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0009] A box resistance furnace convenient to use, comprising a furnace base, a heat dissipation window, a furnace box, a sealing door and a hinge device, the heat dissipation window is located on the side wall of the furnace base, the internal components of the furnace base are ventilated and heat-dissipated through the heat dissipation window, the furnace box is located at the upper end of the furnace base, and the sealing door is installed at the opening end of the furnace box through the hinge device.

[0010] The front edge of the sealing door is equipped with a locking handle via a connecting shaft. The sealing door is connected to the furnace box by rotating the locking handle.

[0011] The free end of the latch handle has a through hole. The sealing door is connected to a first winding drum and a second winding drum via two other connecting shafts. A winding wire is connected to the through hole and passes through the first winding drum and winds around the second winding drum. The outer end of the second winding drum is connected to a drive motor, and the drive motor is connected to the sealing door via a mounting bracket.

[0012] In a further preferred embodiment of this utility model, the mounting bracket is designed in an "L" shape, and mounting holes are provided at both ends of the mounting bracket. One set of mounting holes is used to insert bolts to connect the drive motor to the mounting bracket, and the other set of mounting holes is used to insert bolts to connect the mounting bracket to the sealing door.

[0013] In a further preferred embodiment of this utility model, the cross-section of the perforation is designed in the shape of a cross, the winding wire passes through the perforation and is knotted to connect it to the latch handle, the rotating shaft of the latch handle passes through the shaft hole of the connecting shaft, and the connecting shaft is fixed to the sealing door;

[0014] In a further preferred embodiment of this utility model, the latch handle, the first winding spool, and the second winding spool are arranged in a triangular pattern on the sealing door;

[0015] In a further preferred embodiment of this utility model, the first winding cylinder and the second winding cylinder are I-shaped cylinders, and both the first winding cylinder and the second winding cylinder are connected to the connecting shaft through a rotating shaft.

[0016] In a further preferred embodiment of this utility model, the drive motor drives the second winding drum to rotate, thereby tightening or loosening the winding wire, and in turn driving the lock handle to rotate, thereby opening the sealed door.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, the electrically operated opening device allows users to control the opening and closing of the sealed door via a simple button operation, thus avoiding the extra time and labor required for manual operation. This automation significantly reduces the time required for operation, making material loading and unloading faster and more efficient. The electrically operated opening device ensures safety during the heating process by precisely controlling the movement of the sealed door. The automated opening and closing of the sealed door reduces the opportunity for operators to have direct contact with the high-temperature furnace chamber, lowering the risk of burns and other safety accidents.

[0019] Manually opening and closing sealed doors requires considerable physical strength and concentration, especially for frequent operations or heavy-duty handling. The use of electrically operated opening devices reduces the physical burden on operators, making the work easier, and significantly reducing labor intensity, particularly for workers who operate these doors for extended periods.

[0020] Electrically operated opening devices allow operators to easily control the opening and closing of sealed doors without the need for complex mechanical operations. This convenience makes the operation process more intuitive and simple, especially for new operators, allowing them to quickly get started and reducing training time and costs. Furthermore, electrically operated opening devices are typically equipped with safety protection measures, such as overload protection and emergency stop buttons, further ensuring the safety of the operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a front view of the overall structure of this utility model;

[0023] Figure 3 This is a diagram showing the overall structure of the present invention;

[0024] Figure 4 This is a diagram illustrating the locking handle, winding spool, winding wire, and drive motor of this utility model.

[0025] In the diagram: 1. Furnace base; 2. Heat dissipation window; 3. Furnace box; 4. Sealed door; 5. Hinge device; 6. Connecting shaft; 7. Lock handle; 8. Through hole; 9. First winding bobbin; 10. Second winding bobbin; 11. Winding wire; 12. Drive motor; 13. Mounting bracket; 14. Mounting hole. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1 - Figure 4 As shown, a user-friendly box-type resistance furnace is designed to provide efficient heating and good operational convenience. The furnace mainly comprises the following parts: a furnace base 1, a heat dissipation window 2, a furnace box 3, a sealing door 4, and a hinge device 5. The heat dissipation window 2 is located on the side wall of the furnace base 1, and its main function is to promote ventilation and heat dissipation of the internal components of the furnace base 1. The furnace box 3 is installed at the upper end of the furnace base 1, providing space for heating.

[0028] The sealing door 4 is installed at the opening end of the furnace box 3 via a hinge device 5, ensuring that the heat inside the furnace box 3 does not leak out, while facilitating the loading and unloading of materials by operators. A locking handle 7 is installed on the front edge of the sealing door 4 via a connecting shaft 6. By rotating the locking handle 7, the sealing door 4 can be tightly connected to the furnace box 3 or opened.

[0029] The free end of the latch handle 7 has a through hole 8. A first winding drum 9 and a second winding drum 10 are connected to the sealing door 4 via two other connecting shafts 6. A winding wire 11 is connected to the through hole 8, passes through the first winding drum 9, and is wound around the second winding drum 10. A drive motor 12 is connected to the outer end of the second winding drum 10, and the drive motor 12 is connected to the sealing door 4 via a mounting bracket 13.

[0030] The mounting bracket 13 is L-shaped, with mounting holes 14 at both ends. One set of mounting holes 14 is used to insert bolts to connect the drive motor 12 to the mounting bracket 13, while the other set of mounting holes 14 is used to connect the mounting bracket 13 to the sealing door 4. The through hole 8 has a cross-section of a cross shape, and the winding wire 11 passes through the through hole 8 and is knotted to connect it to the latch handle 7. The rotating shaft of the latch handle 7 passes through the shaft hole of the connecting shaft 6, and the connecting shaft 6 is fixed to the sealing door 4.

[0031] The latch handle 7, the first winding spool 9, and the second winding spool 10 are arranged in a triangle on the sealing door 4. This layout helps to evenly distribute the torque and ensures the stable operation of the sealing door 4. The first winding spool 9 and the second winding spool 10 are I-shaped cylinders, both of which are connected to the connecting shaft 6 via a rotating shaft. The drive motor 12 drives the second winding spool 10 to rotate, thereby adjusting the tension of the winding wire 11, which in turn drives the latch handle 7 to rotate, thus opening and closing the sealing door 4.

[0032] This box-type resistance furnace design not only improves operational convenience but also ensures safety and efficiency during the heating process. Precise control of the opening and closing of the sealing door 4 effectively prevents heat loss while guaranteeing operator safety. Furthermore, the use of the drive motor 12 automates the operation of the sealing door 4, reducing manpower requirements and improving work efficiency.

[0033] Operating Procedure: First, ensure the box-type resistance furnace is connected to a power source and in standby mode. Next, carefully place the material to be heated into furnace chamber 3. After placing the material, close the sealing door 4, ensuring it is tightly connected to furnace chamber 3 to guarantee temperature stability during heating. Then, adjust the required heating temperature and time according to the material's heating requirements. Once everything is ready, start the resistance furnace to begin the heating process. After heating is complete, promptly turn off the power to avoid unnecessary energy waste. Then, patiently wait for the internal temperature of furnace chamber 3 to drop to a safe range to ensure operator safety. When the temperature is suitable, open the sealing door 4 and remove the heated material.

[0034] Electric opening process: To electrically open the sealing door 4, first press the open button, which will start the drive motor 12. After the drive motor 12 starts working, it will drive the second winding drum 10 to rotate. The winding wire 11 is gradually wound and tightened on the second winding drum 10. As the winding wire 11 tightens, it will pull the locking handle 7 to rotate. The rotation of the locking handle 7 will further drive the sealing door 4 to open. When the sealing door 4 is fully open, stop the work of the drive motor 12. At this time, the sealing door 4 remains in the open state, which facilitates the loading or unloading of materials.

[0035] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A convenient box-type resistance furnace, comprising a furnace base (1), a heat dissipation window (2), a furnace box (3), a sealing door (4), and a hinge device (5), wherein the heat dissipation window (2) is located on the side wall of the furnace base (1) and the internal components of the furnace base (1) are ventilated and cooled through the heat dissipation window (2), the furnace box (3) is located at the upper end of the furnace base (1), and the sealing door (4) is installed at the opening end of the furnace box (3) through the hinge device (5), characterized in that: The front edge of the sealing door (4) is fitted with a latch handle (7) via a connecting shaft (6). The sealing door (4) is connected to the furnace box (3) by rotating the latch handle (7). The free end of the latch handle (7) has a through hole (8). The sealing door (4) is connected to a first winding drum (9) and a second winding drum (10) via two other connecting shafts (6). A winding wire (11) is connected in the through hole (8), and the winding wire (11) passes through the first winding drum (9) and is wound around the second winding drum (10). The outer end of the second winding drum (10) is connected to a drive motor (12), and the drive motor (12) is connected to the sealing door (4) via a mounting bracket (13).

2. The easy-to-use box-type resistance furnace according to claim 1, characterized in that: The mounting bracket (13) is designed in an "L" shape. The mounting bracket (13) has mounting holes (14) at both ends. One set of mounting holes (14) is used to insert bolts to connect the drive motor (12) to the mounting bracket (13), and the other set of mounting holes (14) is used to insert bolts to connect the mounting bracket (13) to the sealing door (4).

3. The easy-to-use box-type resistance furnace according to claim 2, characterized in that: The cross-section of the perforation (8) is designed in the shape of a cross. The winding wire (11) passes through the perforation (8) and is knotted to connect it to the latch handle (7). The pivot of the latch handle (7) passes through the shaft hole of the connecting shaft (6), and the connecting shaft (6) is fixed on the sealing door (4).

4. A user-friendly box-type resistance furnace according to claim 3, characterized in that: The latch handle (7), the first winding spool (9) and the second winding spool (10) are arranged in a triangle on the sealing door (4).

5. A user-friendly box-type resistance furnace according to claim 4, characterized in that: The first winding drum (9) and the second winding drum (10) are I-shaped drums. Both the first winding drum (9) and the second winding drum (10) are connected to the connecting shaft (6) through a rotating shaft.

6. A user-friendly box-type resistance furnace according to claim 5, characterized in that: The drive motor (12) drives the second winding drum (10) to rotate to tighten or loosen the winding wire (11), which in turn drives the lock handle (7) to rotate to open the sealing door (4).

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