Safety oven with explosion-proof quartz tube

Abstract

The utility model relates to the technical field of oven, disclose quartz tube explosion -proof safety oven, including inside box and shell, the upper portion front side of inside box is provided with quartz tube cooling mechanism, quartz tube cooling mechanism is used for giving quartz tube cooling, the upper portion rear side of inside box is provided with reflection and heat -collecting mechanism, reflection and heat -collecting mechanism are used for concentrating infrared radiation that quartz tube emits, the quartz tube cooling mechanism includes first fixed plate, first fixed plate fixedly connected in the upper side middle part of inside box, the front side fixed connection of first fixed plate has electric push rod, the front end fixed connection of electric push rod has the connecting plate, in the utility model, the distance of fan and quartz tube is adjusted through electric push rod, and the wind force that quartz tube receives will be big with the reduction of distance, to this adjusts the cooling rate of quartz tube, and in time to the quartz tube cooling, avoid low temperature material to reduce the temperature of quartz tube periphery.

Description

Technical Field

[0001] This utility model relates to the field of oven technology, and in particular to a quartz tube explosion-proof safety oven. Background Technology

[0002] An explosion-proof safety oven is a special heating device with an explosion-proof design that uses heat generated by electric heating elements or other energy sources to heat-treat materials. The core of an explosion-proof safety oven is explosion-proof design, and quartz tubes can meet the requirements of high-efficiency heating while minimizing the risk of explosion caused by the heating element itself, making them the ideal heating element choice for explosion-proof safety ovens.

[0003] The quartz tube explosion-proof safety oven mainly consists of an explosion-proof enclosure, a quartz tube heating system, an explosion-proof electrical control system, and safety auxiliary devices. It heats materials through far-infrared radiation from the quartz tube, while the explosion-proof structure isolates ignition, controls the concentration of flammable substances, and precisely controls the temperature, achieving safe heating in hazardous environments. However, quartz tubes are brittle and prone to cracking if they come into contact with low-temperature materials during heating. Improvements include a metal protective mesh to isolate the quartz tube from the materials, preventing direct contact. However, if the quartz tube is not cooled down promptly during continuous heating, the low-temperature materials will lower the temperature around the quartz tube, causing a thermal expansion and contraction reaction that can lead to the quartz tube bursting. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a quartz tube explosion-proof safety oven, which aims to improve the problem in the prior art where the quartz tube does not cool down in time during continuous heating, and the low-temperature material will lower the temperature around the quartz tube, causing the quartz tube to undergo a thermal expansion and contraction reaction, resulting in the quartz tube bursting.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a quartz tube explosion-proof safety oven, comprising an inner chamber and an outer shell. A quartz tube cooling mechanism is provided on the upper front side of the inner chamber, used to cool the quartz tube. A reflective heat-concentrating mechanism is provided on the upper rear side of the inner chamber, used to concentrate the infrared radiation emitted by the quartz tube. The quartz tube cooling mechanism includes a first fixing plate, fixedly connected to the upper middle part of the inner chamber. An electric push rod is fixedly connected to the front side of the first fixing plate. A connecting plate is fixedly connected to the front end of the electric push rod. Multiple support rods are fixedly connected to the rear side of the connecting plate. A fan is fixedly connected to the front end of each support rod. A sealing ring is provided in the middle of each support rod, and the sealing ring is fixedly connected to the inner chamber.

[0006] As a further description of the above technical solution:

[0007] The reflective heat-concentrating mechanism includes a motor, which is fixedly connected to the upper rear part of the inner box. A worm gear is fixedly connected to the output end of the motor. A worm wheel is provided on the right side of the worm gear, and the worm wheel is meshed with the worm gear. A threaded rod is fixedly connected to the bottom of the worm wheel. A slider is threadedly connected to the outer wall of the threaded rod. A second fixed plate is fixedly connected to the front side of the slider. Two third fixed plates are fixedly connected to the front side of the second fixed plate. A first reflective sheet is rotatably connected to the front end of the third fixed plate. A second reflective sheet is rotatably connected to the bottom end of the first reflective sheet. A rotating shaft is rotatably connected to the bottom end of the second reflective sheet. The rotating shaft is rotatably connected to the inner box. A sliding groove is provided on the working side of the threaded rod, and the sliding groove is slidably connected to the slider.

[0008] As a further description of the above technical solution:

[0009] A door panel is fixedly connected to the front side of the outer casing, and a glass plate is fixedly connected to the middle of the door panel.

[0010] As a further description of the above technical solution:

[0011] A handle is fixedly connected to the front left side of the door panel.

[0012] As a further description of the above technical solution:

[0013] The bottom of the internal box is rotatably connected to a turntable.

[0014] As a further description of the above technical solution:

[0015] A lighting lamp is fixedly connected to the front side of the inner top wall of the internal box.

[0016] As a further description of the above technical solution:

[0017] A heat dissipation mesh is fixedly connected to the rear side of the internal housing.

[0018] As a further description of the above technical solution:

[0019] Anti-slip pads are fixedly connected to the four corners at the bottom of the outer casing.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the distance between the fan and the quartz tube is adjusted by an electric push rod. The wind force on the quartz tube will increase as the distance decreases, thereby adjusting the cooling rate of the quartz tube and cooling the quartz tube in time. This prevents the low-temperature material from lowering the temperature around the quartz tube, causing the quartz tube to expand and contract due to excessive temperature, and preventing the quartz tube from bursting.

[0022] 2. In this utility model, starting the motor causes the worm gear to rotate, and the turbine will rotate synchronously with the worm gear, driving the connected threaded rod to rotate. The slider will move up and down along the slide groove as the threaded rod rotates, thereby adjusting the opening angle of the first reflector and the second reflector, so that the infrared radiation emitted by the quartz tube is focused and reflected onto the material, thus accelerating the heating speed. Attached Figure Description

[0023] Figure 1 This is a perspective view of the quartz tube explosion-proof safety oven proposed in this utility model;

[0024] Figure 2 This is a front view of the quartz tube explosion-proof safety oven proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the quartz tube cooling mechanism of the quartz tube explosion-proof safety oven proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the reflective heat-concentrating mechanism of the quartz tube explosion-proof safety oven proposed in this utility model;

[0027] Figure 5 This is a partial structural schematic diagram of the quartz tube explosion-proof safety oven proposed in this utility model;

[0028] Figure 6 This is a partial structural cross-sectional view of the quartz tube explosion-proof safety oven proposed in this utility model.

[0029] Legend:

[0030] 1. Internal housing; 2. Quartz tube cooling mechanism; 201. First fixed plate; 202. Electric push rod; 203. Connecting plate; 204. Support rod; 205. Sealing ring; 206. Fan; 3. Reflective heat-concentrating mechanism; 301. Motor; 302. Worm gear; 303. Worm wheel; 304. Threaded rod; 305. Slider; 306. Second fixed plate; 307. Third fixed plate; 308. First reflector; 309. Second reflector; 310. Rotating shaft; 311. Slide groove; 4. Outer shell; 5. Door panel; 6. Glass plate; 7. Handle; 8. Turntable; 9. Lighting lamp; 10. Heat dissipation mesh; 11. Anti-slip mat. Detailed Implementation

[0031] 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.

[0032] Reference Figure 3 and Figure 6 This utility model provides an embodiment of a quartz tube explosion-proof safety oven, comprising an inner chamber 1 and an outer shell 4. A quartz tube cooling mechanism 2 is provided on the upper front side of the inner chamber 1 to cool the quartz tube. A reflective heat-concentrating mechanism 3 is provided on the upper rear side of the inner chamber 1 to concentrate the infrared radiation emitted by the quartz tube. The quartz tube cooling mechanism 2 includes a first fixing plate 201, which is fixedly connected to the upper middle part of the inner chamber 1. The front side of the first fixing plate 201 is fixedly connected to... An electric push rod 202 is provided, with a connecting plate 203 fixedly connected to its front end. Multiple support rods 204 are fixedly connected to the rear side of the connecting plate 203. A fan 206 is fixedly connected to the front end of each support rod 204 for cooling the fan 206. A sealing ring 205 is provided in the middle of the support rod 204 to prevent hot air from entering the inner cavity of the oven during heating, thus avoiding affecting the operation of the parts. The sealing ring 205 is fixedly connected to the inner box 1. A heat dissipation mesh 10 is fixedly connected to the rear side of the inner box 1 for dissipating heat from the oven.

[0033] Specifically, fan 206 is turned on. Fan 206 is a circulating fan that circulates air through the rotation of its blades, thus cooling the quartz tube. Simultaneously, electric actuator 202 is activated. Electric actuator 202 is a DC electric actuator. When a DC motor is powered on, its rotation drives a lead screw. The screw and nut's helical transmission converts the rotational motion into the linear motion of the nut, which in turn pushes the actuator to extend or retract. When the actuator 202 retracts backward, it causes the connected plate 203 to move backward. The support rod 204 connected to the connecting plate 203 also moves backward synchronously, causing fan 206 to move backward, thus reducing... The distance between the small fan 206 and the quartz tube varies with the distance. When the distance decreases, the airflow to the quartz tube increases. At the beginning of cooling, the fan 206 is placed at a relatively far position to cool the quartz tube, preventing the newly heated quartz tube from bursting due to thermal expansion and contraction caused by a sudden strong cold air blow. After the temperature of the quartz tube begins to gradually decrease, the electric push rod 202 is activated to slowly bring the fan 206 closer to the quartz tube, accelerating the cooling speed. The heat dissipation mesh 10 at the rear of the oven can accelerate the air circulation inside the oven, which is beneficial to the heat dissipation and cooling of the entire equipment.

[0034] Reference Figure 1 , Figure 2 and Figure 4The reflective heat-concentrating mechanism 3 includes a motor 301, which is fixedly connected to the upper rear part of the inner housing 1. A worm gear 302 is fixedly connected to the output end of the motor 301. A worm wheel 303 is provided on the right side of the worm gear 302 and meshes with the worm gear 302. A threaded rod 304 is fixedly connected to the bottom of the worm wheel 303. The worm wheel 303 drives the threaded rod 304 to rotate synchronously. A slider 305 is threadedly connected to the outer wall of the threaded rod 304. A second fixing plate 306 is fixedly connected to the front side of the slider 305. Two third fixing plates 307 are fixedly connected. A first reflective sheet 308 is rotatably connected to the front end of the third fixing plate 307. A second reflective sheet 309 is rotatably connected to the bottom end of the first reflective sheet 308. A rotating shaft 310 is rotatably connected to the bottom end of the second reflective sheet 309. The rotating shaft 310 is rotatably connected to the inner box 1. A sliding groove 311 is provided on the working side of the threaded rod 304. The sliding groove 311 is slidably connected to the slider 305. The slider 305 can only slide along the direction of the sliding groove 311. A turntable 8 is rotatably connected to the bottom of the inner box 1 for placing materials.

[0035] Specifically, the material to be heated is first placed in the turntable 8, then the turntable 8 is placed into the inner chamber 1, and then the oven door 5 is closed. Next, the motor 301 is started. The motor 301 is a DC motor, which uses the electromagnetic force generated by the stator magnetic field and the current in the rotor winding to create torque, causing the rotor to rotate. The commutator automatically changes the direction of the current in the armature winding to ensure the torque direction remains constant, achieving continuous rotation. The operation of the motor 301 drives the worm 302 to rotate. Since the worm 302 and worm wheel 303 are meshed, the worm wheel 303 will rotate synchronously with the worm 302, thereby driving the connected threaded rod 304 to rotate as well. Because the grooves 311 on both sides of the threaded rod 304 restrict the slider 305 from rotating with the threaded rod 304, when the threaded rod 304 rotates, the slider 305 will move up and down along the grooves 311. When the slider 305 moves downwards, it will drive the connected second fixed plate 306 to move downwards, and the third fixed plate 307 will move synchronously downwards. The first reflector 308 moves downwards, simultaneously moving the first reflector 308 downwards. The first reflector 308 is made of stainless steel and uses its smooth surface with high infrared reflectivity to reflect the infrared radiation generated by the quartz tube and guide it to the heating area. When the first reflector 308 moves downwards, it applies a downward force to the second reflector 309. The second reflector 309 is also made of stainless steel and uses its smooth surface with high infrared reflectivity to reflect the infrared radiation generated by the quartz tube and guide it to the heating area. Since the rotating shaft 310 restricts the up-and-down movement of the second reflector 309, the second reflector 309 will rotate backwards around the rotating shaft 310 under this pressure. The first reflector 308 will also rotate backwards accordingly, thereby adjusting the opening angle between the first reflector 308 and the second reflector 309. The first reflector 308 and the second reflector 309 can concentrate the infrared radiation emitted by the quartz tube and reflect it onto the material in the turntable 8, accelerating the heating speed of the material.

[0036] Reference Figure 1 , Figure 5 and Figure 6 A door panel 5 is fixedly connected to the front side of the outer shell 4, and a glass plate 6 is fixedly connected to the middle of the door panel 5 for observing the inside of the oven; a handle 7 is fixedly connected to the left front end of the door panel 5 for pulling the door panel 5; a light 9 is fixedly connected to the front side of the inner top wall of the inner cabinet 1 to provide lighting and facilitate the staff to observe the inside of the oven; anti-slip pads 11 are fixedly connected to the four corners of the bottom of the outer shell 4 to prevent the oven from sliding.

[0037] Specifically, the handle 7 installed on the door panel 5 makes it easier for staff to pull the door panel 5, making operation convenient; during the heating process, the lighting lamp 9 uses LED lighting lamp 9, which converts electrical energy into visible light through semiconductor materials, providing illumination for the inside of the oven. This allows staff to observe the heating status of the materials inside the oven through the glass plate 6, and to cut off the power in time if any special situation is found, thus avoiding safety accidents; the anti-slip pad 11 at the bottom of the oven increases the friction between the oven and the placement surface, ensuring the stability of the oven and preventing the oven from sliding and spilling the materials inside.

[0038] Working principle: First, place the material to be heated into the turntable 8, then into the inner box 1. Next, close the door panel 5, and start the motor 301 to rotate the worm gear 302. Since the worm gear 302 and worm wheel 303 are meshed, the worm wheel 303 will rotate synchronously with the worm gear 302. The worm wheel 303 drives the connected threaded rod 304 to rotate. Because the sliding grooves 311 on the left and right sides restrict the rotation of the slider 305, the slider 305 will move up and down along the sliding grooves 311 as the threaded rod 304 rotates. When the slider 305 moves downwards, it will drive the second fixed plate 306. As the plate moves downward, the third fixed plate 307 moves downward in sync, causing the first reflector 308 to move downward as well. At the same time, the first reflector 308 exerts a downward force on the second reflector 309. However, since the rotating shaft 310 restricts the position of the second reflector 309, preventing it from moving, the second reflector 309 will rotate backward around the rotating shaft 310 under this pressure. The first reflector 308 will also rotate backward, thereby adjusting the opening angle of the first reflector 308 and the second reflector 309. This allows the infrared radiation emitted by the quartz tube to be focused and reflected onto the material, accelerating the heating speed.

[0039] After the angles of the first reflector 308 and the second reflector 309 are adjusted, the quartz tube heating system is started to heat the material. When the material is heated, the door panel 5 is opened to remove the material, and the fan 206 is turned on to cool the quartz tube. At the same time, the electric push rod 202 is started, and the push rod shortens to move the connecting plate 203 backward. The support rod 204 moves backward in sync, causing the fan 206 to also move backward, thus reducing the distance between the fan 206 and the quartz tube. The wind force on the quartz tube will increase as the distance decreases. The fan 206 is first used to cool the quartz tube from a distance to prevent the quartz tube from being suddenly blown by cold air and causing a thermal expansion and contraction reaction that could cause the quartz tube to burst. Once the temperature of the quartz tube begins to drop, the fan 206 is brought closer to the quartz tube to cool it down.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quartz tube explosion-proof safety oven, comprising an inner chamber (1) and an outer shell (4), characterized in that: A quartz tube cooling mechanism (2) is provided on the upper front side of the inner box (1). The quartz tube cooling mechanism (2) is used to cool the quartz tube. A reflective heat-concentrating mechanism (3) is provided on the upper rear side of the inner box (1). The reflective heat-concentrating mechanism (3) is used to concentrate the infrared radiation emitted by the quartz tube. The quartz tube cooling mechanism (2) includes a first fixing plate (201), which is fixedly connected to the upper middle part of the inner box (1). An electric push rod (202) is fixedly connected to the front side of the first fixing plate (201). A connecting plate (203) is fixedly connected to the front end of the electric push rod (202). A plurality of support rods (204) are fixedly connected to the rear side of the connecting plate (203). A fan (206) is fixedly connected to the front end of the support rod (204). A sealing ring (205) is provided in the middle of the support rod (204). The sealing ring (205) is fixedly connected to the inner box (1).

2. The quartz tube explosion-proof safety oven according to claim 1, characterized in that: The reflective heat-concentrating mechanism (3) includes a motor (301), which is fixedly connected to the upper rear part of the inner housing (1). A worm gear (302) is fixedly connected to the output end of the motor (301). A worm wheel (303) is provided on the right side of the worm gear (302). The worm wheel (303) is meshed with the worm gear (302). A threaded rod (304) is fixedly connected to the bottom of the worm wheel (303). A slider (305) is threadedly connected to the outer wall of the threaded rod (304). A second fixing plate (305) is fixedly connected to the front side of the slider (305). 6) Two third fixed plates (307) are fixedly connected to the front side of the second fixed plate (306). The front end of the third fixed plate (307) is rotatably connected to a first reflective sheet (308). The bottom end of the first reflective sheet (308) is rotatably connected to a second reflective sheet (309). The bottom end of the second reflective sheet (309) is rotatably connected to a rotating shaft (310). The rotating shaft (310) is rotatably connected to the inner box (1). The working side of the threaded rod (304) is provided with a sliding groove (311). The sliding groove (311) is slidably connected to the slider (305).

3. The quartz tube explosion-proof safety oven according to claim 1, characterized in that: A door panel (5) is fixedly connected to the front side of the outer shell (4), and a glass plate (6) is fixedly connected to the middle of the door panel (5).

4. The quartz tube explosion-proof safety oven according to claim 3, characterized in that: A handle (7) is fixedly connected to the left front end of the door panel (5).

5. The quartz tube explosion-proof safety oven according to claim 1, characterized in that: The bottom of the inner box (1) is rotatably connected to a turntable (8).

6. The quartz tube explosion-proof safety oven according to claim 1, characterized in that: A lighting lamp (9) is fixedly connected to the front side of the inner top wall of the inner box (1).

7. The quartz tube explosion-proof safety oven according to claim 1, characterized in that: A heat dissipation mesh (10) is fixedly connected to the rear side of the internal housing (1).

8. The quartz tube explosion-proof safety oven according to claim 1, characterized in that: Anti-slip pads (11) are fixedly connected to the four corners at the bottom of the outer shell (4).

Images