Hot air circulation electric heating oven

Abstract

The utility model discloses a hot air circulation electric heating oven which comprises an oven body and an air outlet cover, a placing plate is fixedly connected to the outer side of the air outlet cover, a frame is placed at the upper end of the placing plate, an activated carbon adsorption layer is arranged on the frame, and a pair of fixing plates is fixedly connected to the two sides of the frame respectively. A connecting plate is rotationally connected between the two fixing plates through a rotating shaft, a through hole is formed in the connecting plate, a sealing gasket is arranged on the air outlet cover, a pair of threaded rods is fixedly connected to the placing plate, and nuts are in threaded connection to the threaded rods; gas with peculiar smell can be adsorbed and purified through the activated carbon adsorption layer in the upper frame of the device, and the activated carbon adsorption layer can be detached and replaced through the device.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air circulation electric heating ovens, in particular to a hot air circulation electric heating oven. Background Art

[0002] The electric oven adopts the new energy-saving and environmentally friendly heating technology promoted by the country. It heats the electric heating tube through power supply to generate heat source, and forms circulating air inside the oven through the blower to achieve uniform temperature, thereby obtaining a rapid drying effect. It is an ideal drying equipment with broad prospects.

[0003] For example, a hot air circulation oven for producing Chinese herbal medicine slices disclosed in the utility model with authorization announcement number CN214892273U comprises a main body, a base is arranged at the bottom of the main body, a motor is arranged at the inner bottom of the main body, a rotating shaft is arranged at the upper end of the motor, a fan blade is arranged on the outer wall of the rotating shaft, and an air outlet pipe is arranged on the side of the rotating shaft away from the motor, an electric heating wire is arranged above the air outlet pipe, a fixing plate is arranged on the inner wall of the main body, and a drying chamber is arranged at the upper end of the fixing plate; the hot air circulation oven for producing Chinese herbal medicine slices The oven is provided with a motor, a rotating shaft, fan blades, an air outlet pipe, an electric heating wire, and an air inlet. When the oven is working, the motor drives the fan blades on the rotating shaft to rotate, and the hot air is heated by the electric heating wire to blow into the outside of the drying chamber. The hot air enters the drying chamber through the air inlet, so that the medicine is heated evenly, which improves the quality of the medicine dried in the oven and the practicality of the oven. However, when the device is in use, when the dried items have an odor, the device cannot purify the odor well, and may even cause the hot air to have a certain odor, affecting the subsequent heating and drying of other items. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a hot air circulation electric drying oven, which can solve the technical problem that when the device is in use, when the dried items have odor, the device cannot purify the odor well, and even makes the hot air have a certain odor, affecting the subsequent heating and drying of other items.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a hot air circulation electric oven, comprising a box body and an air outlet hood, a placement plate fixedly connected to the outside of the air outlet hood, a frame placed on the upper end of the placement plate, and an activated carbon adsorption layer is arranged on the frame, a pair of fixed plates are fixedly connected on both sides of the frame, a connecting plate is rotatably connected between the two fixing plates via a rotating shaft, a through hole is opened on the connecting plate, a sealing gasket is arranged on the air outlet hood, and a pair of threaded rods are fixedly connected to the placement plate, and nuts are threadedly connected on the threaded rods.

[0006] As a preferred technical solution of the utility model, an air supply pipe is connected to the lower end of the air outlet hood, and one end of the air supply pipe passes through the box body and is connected to the air inlet hood.

[0007] As a preferred technical solution of the utility model, a fan device is provided on the air supply pipe.

[0008] As a preferred technical solution of the utility model, a heating resistance wire is arranged on the air inlet cover.

[0009] As a preferred technical solution of the utility model, a pair of shelf plates are fixedly connected to the inner wall of the box body, and a plurality of ventilation holes are provided on the shelf plates.

[0010] As a preferred technical solution of the utility model, a plurality of supporting legs are fixedly connected to the top corners of the lower end of the box body.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects: the activated carbon adsorption layer in the upper frame of the device can be used to adsorb and purify odorous gases, and the device can disassemble and replace the activated carbon adsorption layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the internal structure of the box of the utility model;

[0013] Figure 2 This is a schematic diagram of the air outlet cover and frame structure of the utility model;

[0014] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0015] Figure 4 This is a schematic diagram of the structure of the air inlet cover of the utility model when viewed from above;

[0016] Among them: 1. Box body; 2. Air outlet hood; 3. Placement plate; 4. Frame; 5. Activated carbon adsorption layer; 6. Fixing plate; 7. Connecting plate; 8. Through hole; 9. Sealing gasket; 10. Threaded rod; 11. Nut; 12. Air duct; 13. Air inlet hood; 14. Fan device; 15. Heating resistor wire; 16. Shelf board; 17. Support leg. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0018] Example

[0019] Please refer to Figure 1 and Figure 4 As shown, the utility model provides a hot air circulation electric drying oven, the lower end of the air outlet hood 2 is connected to an air supply pipe 12, one end of the air supply pipe 12 passes through the box body 1 and is connected to the air inlet hood 13, a fan device 14 is arranged on the air supply pipe 12, the air inlet hood 13 is arranged with a heating resistor 15, a pair of shelf plates 16 are fixedly connected to the inner wall of the box body 1, items to be dried can be placed on the two shelf plates 16, a plurality of ventilation holes are opened on the shelf plates 16, and a plurality of supporting legs 17 are fixedly connected to the top corners of the lower end of the box body 1.

[0020] When in use, the items to be dried are placed on the shelf 16, and the fan device 14 is started. The fan device 14 can allow the hot air in the box 1 to pass through the air outlet hood 2, the air supply pipe 12 and the air inlet hood 13, and the hot air can be heated by the heating resistor 15 in the air inlet hood 13 and enter the box 1 again, so that the hot air can circulate to heat and dry the items on the shelf 16.

[0021] As a further implementation of this embodiment, Figure 1-Figure 4 As shown, a placement plate 3 is fixedly connected to the outer side of the air outlet hood 2, a frame 4 is placed on the upper end of the placement plate 3, and an activated carbon adsorption layer 5 is arranged on the frame 4, a pair of fixing plates 6 are fixedly connected on both sides of the frame 4, a connecting plate 7 is rotatably connected between the two fixing plates 6 via a rotating shaft, a through hole 8 is opened on the connecting plate 7, a sealing gasket 9 is arranged on the air outlet hood 2, the sealing gasket 9 is in compression contact with the inner wall of the frame 4, so that the frame 4 and the air outlet hood 2 can be sealed and connected, and a pair of threaded rods 10 are fixedly connected to the placement plate 3, and nuts 11 are threadedly connected to the threaded rods 10.

[0022] During use, when hot air passes through the frame 4 and the air outlet hood 2, the activated carbon adsorption layer 5 in the upper frame 4 of the device can adsorb and purify the odorous gas. When the activated carbon adsorption layer 5 needs to be disassembled and replaced, the nut 11 can be rotated to remove the nut 11 from the threaded rod 10, and then the connecting plate 7 can be rotated so that one side of the connecting plate 7 is not in contact with the placement plate 3. The connecting plate 7 rotates along the rotating shaft between the fixed plates 6. At the same time, the connecting plate 7 allows the through hole 8 to pass through the threaded rod 10 during the rotation process, and then the frame 4 is pulled upward to separate the frame 4 from the air outlet hood 2, thereby realizing the replacement of the activated carbon adsorption layer 5.

[0023] Specific working principle: when in use, the items to be dried are placed on the shelf plate 16, and the fan device 14 is started. The fan device 14 can make the hot air in the box body 1 pass through the air outlet hood 2, the air supply pipe 12 and the air inlet hood 13, and the hot air can be heated by the heating resistor 15 in the air inlet hood 13, and enter the box body 1 again, so that the hot air can circulate to heat and dry the items on the shelf plate 16. When the hot air passes through the frame 4 and the air outlet hood 2, the activated carbon adsorption layer 5 in the frame 4 on the device can adsorb and purify the odorous gas. When the activated carbon adsorption layer 5 needs to be disassembled and replaced, the nut 11 can be rotated to remove the nut 11 from the threaded rod 10, and then the connecting plate 7 can be rotated so that one side of the connecting plate 7 does not contact the placement plate 3, and the connecting plate 7 rotates along the rotating shaft on the fixed plate 6. At the same time, the connecting plate 7 allows the through hole 8 to pass through the threaded rod 10 during the rotation process, and then the frame 4 is pulled upward to separate the frame 4 from the air outlet hood 2, so that the activated carbon adsorption layer 5 can be replaced.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hot air circulation electric heating oven, comprising a box body (1) and an air outlet hood (2), characterized in that: A placement plate (3) is fixedly connected to the outside of the air outlet hood (2), a frame (4) is placed on the upper end of the placement plate (3), and an activated carbon adsorption layer (5) is provided on the frame (4), a pair of fixed plates (6) are fixedly connected to both sides of the frame (4), a connecting plate (7) is rotatably connected between the two fixing plates (6) via a rotating shaft, and a through hole (8) is provided on the connecting plate (7), a sealing gasket (9) is provided on the air outlet hood (2), and a pair of threaded rods (10) are fixedly connected to the placement plate (3), and nuts (11) are threadedly connected to the threaded rods (10).

2. A hot air circulation electric heating oven according to claim 1, characterized in that: The lower end of the air outlet cover (2) is connected to an air supply pipe (12), and one end of the air supply pipe (12) passes through the box body (1) and is connected to the air inlet cover (13).

3. A hot air circulation electric heating oven according to claim 2, characterized in that: The air delivery pipe (12) is provided with a fan device (14).

4. A hot air circulation electric heating oven according to claim 2, characterized in that: The air inlet cover (13) is provided with a heating resistance wire (15).

5. The hot air circulation electric heating oven according to claim 1, characterized in that: A pair of storage plates (16) are fixedly connected to the inner wall of the box body (1), and a plurality of ventilation holes are provided on the storage plates (16).

6. The hot air circulation electric heating oven according to claim 1, characterized in that: A plurality of supporting legs (17) are fixedly connected to the top corners of the lower end of the box body (1).

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