Uniformly heated electric vacuum drying oven

Abstract

The utility model discloses a kind of even heating electric vacuum drying oven, it is related to laboratory equipment field, including operation box, the surface of the operation box is slidably connected with switch door, the inner wall of the operation box is fixedly connected with multiple heating rods and air-permeable plate, the inner wall of the operation box is rotatably connected with first drive shaft and second drive shaft, the surface of the operation box is fixedly connected with motor, the surface of the operation box is fixedly connected with protection box.The utility model first object is clamped by clamp plate and fixed plate close to, air in the operation box is pumped to vacuum by vacuum pump, by the drive of motor, drive first bevel gear to rotate, first bevel gear drives second bevel gear and linkage shaft to rotate, linkage shaft drives protection frame to rotate as a whole, and then the object clamped is rotated, by controlling the heating temperature of heating rod, object realizes heating vacuum operation in rotating process, the advantage of this is that, in the process of object heating, heated evenly.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment, and in particular to a uniformly heated electric vacuum drying oven. Background Technology

[0002] An electric vacuum drying oven is a device that dries materials under negative pressure using an electric heating system and a vacuum pump. It is widely used in biochemistry, pharmaceuticals, food, and chemical industries, and is especially suitable for processing heat-sensitive, easily decomposed, or easily oxidized substances.

[0003] Existing electric vacuum drying ovens require objects to be placed inside for processing. However, since the objects are placed horizontally and stationary, the heating of one side is not uniform with other surfaces. To solve this problem, a more uniformly heated electric vacuum drying oven is needed. Utility Model Content

[0004] The purpose of this invention is to provide a uniformly heated electric vacuum drying oven to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a uniformly heated electric vacuum drying oven, comprising an operating box, a sliding door connected to the surface of the operating box, multiple heating rods and a vent plate fixedly connected to the inner wall of the operating box, a first drive shaft and a second drive shaft rotatably connected to the inner wall of the operating box, a motor fixedly connected to the surface of the operating box, a protective box fixedly connected to the surface of the operating box, a vacuum pump fixedly connected to the inner wall of the protective box, one end of the vacuum pump communicating with the interior of the operating box, and a uniform heating mechanism provided on the surface of the operating box.

[0006] Preferably, the uniform heating mechanism includes a motor fixedly connected to the surface of the operating box, the output end of the motor being fixedly connected to one end of a second drive shaft, a drive wheel being fixedly connected to the surface of the second drive shaft, a driven wheel being fixedly connected to the surface of the first drive shaft, and a belt being tensioned on the surfaces of the drive wheel and the driven wheel.

[0007] Preferably, the inner wall of the operating box is fixedly connected with a plurality of L-shaped plates, the inner wall of the L-shaped plates is rotatably connected with a linkage shaft, and the surfaces of the first drive shaft and the second drive shaft are both fixedly connected with a plurality of first bevel gears.

[0008] Preferably, a second bevel gear is fixedly connected to one end of the linkage shaft, the first bevel gear meshes with the second bevel gear, a protective frame is fixedly connected to one end of the linkage shaft, and a fixing plate is fixedly connected to the inner wall of the protective frame.

[0009] Preferably, the inner wall of the protective frame is slidably connected to a clamping plate, and the inner wall of the protective frame is threadedly connected to a threaded rod, one end of which is rotatably connected to the surface of the clamping plate.

[0010] Preferably, friction pads are fixedly connected to the opposing surfaces of the fixing plate and the clamping plate, a U-shaped baffle is fixedly connected to the surface of the operating box, the belt is located inside the U-shaped baffle, a knob controller is fixedly installed on the surface of the operating box, and a digital display screen is fixedly installed on the surface of the knob controller.

[0011] In summary, the technical effects and advantages of this utility model are as follows: In this invention, the object is first clamped close to the clamping plate and fixed plate. Then, the air inside the operating box is evacuated to a vacuum by a vacuum pump. Driven by a motor, the first bevel gear rotates, which in turn drives the second bevel gear and the linkage shaft to rotate. The linkage shaft then drives the entire protective frame to rotate, thereby rotating the clamped object. By controlling the heating temperature of the heating rod, the object is heated in a vacuum during rotation. The advantage of this is that the object is heated evenly during the heating process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the planar structure of the first drive shaft and the second drive shaft in an embodiment of this utility model; Figure 3 This is a cross-sectional view of the control box in an embodiment of the present invention; Figure 4 This is an embodiment of the present utility model. Figure 3 A magnified structural diagram of point A in the middle.

[0014] In the diagram: 1. Control box; 2. Knob controller; 3. Protective box; 4. Digital display screen; 5. Opening and closing door; 6. Heating rod; 7. Ventilation plate; 8. First drive shaft; 9. Second drive shaft; 10. Motor; 11. Vacuum pump; 12. Driven wheel; 13. Driving wheel; 14. L-shaped plate; 15. First bevel gear; 16. Second bevel gear; 17. Protective frame; 18. Fixing plate; 19. Friction pad; 20. Clamping plate; 21. Threaded rod; 22. Linkage shaft; 23. Belt; 24. U-shaped baffle. Detailed Implementation

[0015] 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.

[0016] Example: Reference Figures 1-4 The diagram shows a uniformly heated electric vacuum drying oven, comprising an operation box 1, a sliding door 5 connected to the surface of the operation box 1, multiple heating rods 6 and a vent plate 7 fixedly connected to the inner wall of the operation box 1, a first drive shaft 8 and a second drive shaft 9 rotatably connected to the inner wall of the operation box 1, a motor 10 fixedly connected to the surface of the operation box 1, a protective box 3 fixedly connected to the surface of the operation box 1, a vacuum pump 11 fixedly connected to the inner wall of the protective box 3, one end of the vacuum pump 11 communicating with the interior of the operation box 1, and a uniform heating mechanism provided on the surface of the operation box 1.

[0017] Using the above structure, multiple heating rods 6 are installed for electric heating. A vent plate 7 is installed to provide safety protection for the heating rods 6. A motor 10 is installed to drive the second drive shaft 9 to rotate. A drive wheel 13 is installed, which drives the driven wheel 12 to rotate via a belt 23. The driven wheel 12 drives the first drive shaft 8 to rotate. A vacuum pump 11 is installed to evacuate the space inside the operating box 1. A uniform heating mechanism is installed to rotate the object being heated during the heating process to ensure that it is heated evenly.

[0018] Preferably, the uniform heating mechanism includes a motor 10 fixedly connected to the surface of the operating box 1. The output end of the motor 10 is fixedly connected to one end of the second drive shaft 9. A drive wheel 13 is fixedly connected to the surface of the second drive shaft 9. A driven wheel 12 is fixedly connected to the surface of the first drive shaft 8. A belt 23 is tensioned on the surfaces of the drive wheel 13 and the driven wheel 12.

[0019] By setting the driving wheel 13, the rotation of the driving wheel 13 drives the driven wheel 12 to rotate via the belt 23, and the driven wheel 12 drives the first drive shaft 8 to rotate.

[0020] Preferably, the inner wall of the operating box 1 is fixedly connected with a plurality of L-shaped plates 14, the inner wall of the L-shaped plates 14 is rotatably connected with a linkage shaft 22, and the surfaces of the first drive shaft 8 and the second drive shaft 9 are both fixedly connected with a plurality of first bevel gears 15.

[0021] By setting the L-shaped plate 14, the rotational support of the linkage shaft 22 is kept stable, and by setting the first bevel gear 15, the second bevel gear 16 is driven to rotate.

[0022] Preferably, a second bevel gear 16 is fixedly connected to one end of the linkage shaft 22, the first bevel gear 15 meshes with the second bevel gear 16, a protective frame 17 is fixedly connected to one end of the linkage shaft 22, and a fixing plate 18 is fixedly connected to the inner wall of the protective frame 17.

[0023] By setting up the protective frame 17, the fixing plate 18 is installed and fixed, and the sliding stability of the clamp 20 is maintained.

[0024] Preferably, the inner wall of the protective frame 17 is slidably connected to a clamping plate 20, and the inner wall of the protective frame 17 is threadedly connected to a threaded rod 21, one end of which is rotatably connected to the surface of the clamping plate 20.

[0025] By setting the threaded rod 21, the operator can rotate the threaded rod 21 to adjust the sliding position of the clamping plate 20 within the protective frame 17, thereby clamping the object.

[0026] Preferably, friction pads 19 are fixedly connected to the opposite surfaces of the fixing plate 18 and the clamping plate 20, a U-shaped baffle 24 is fixedly connected to the surface of the operation box 1, the belt 23 is located inside the U-shaped baffle 24, a knob controller 2 is fixedly installed on the surface of the operation box 1, and a digital display screen 4 is fixedly installed on the surface of the knob controller 2.

[0027] By setting friction pads 19, contact friction is increased; by setting U-shaped baffles 24, belt 23 is shielded and protected; and by setting knob controller 2, the current is adjusted to control the heating heat of heating rod 6.

[0028] The working principle of this utility model is as follows: Before use, the object to be processed in a uniformly heated electric vacuum drying oven is placed between the fixed plate 18 and the clamping plate 20. The operator rotates the threaded rod 21, causing the clamping plate 20 to move closer to the fixed plate 18, thus clamping the object. Stability of the clamping is maintained through the friction of the friction pads 19. The sliding door 5 is closed, and the digital display screen 4 is used for touch screen control. An electrical signal is sent to control the start of the vacuum pump 11 and the motor 10. The vacuum pump 11 evacuates the air inside the operating chamber 1 to a vacuum, and the output of the motor 10 drives the second drive shaft 9 to rotate. The second drive shaft 9 drives the drive wheel 13 to rotate, and the drive wheel 13 drives the driven wheel 12 to rotate via the belt 23. The driven wheel 12 drives the first drive shaft 8 to rotate, and the rotation of the first drive shaft 8 and the second drive shaft 9 drives the first bevel gear 15 to rotate. The first bevel gear 15 drives the second bevel gear 16 and the linkage shaft 22 to rotate, and the linkage shaft 22 drives the protective frame 17 to rotate as a whole, thereby rotating the clamped object. The operator can turn the knob controller 2 to adjust the current and control the heating temperature of the heating rod 6, so that the object can be heated in a vacuum during rotation.

[0029] 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 uniformly heated electric vacuum drying oven, comprising an operating chamber (1), characterized in that: The surface of the operating box (1) is slidably connected to a switch door (5). The inner wall of the operating box (1) is fixedly connected to multiple heating rods (6) and a vent plate (7). The inner wall of the operating box (1) is rotatably connected to a first drive shaft (8) and a second drive shaft (9). The surface of the operating box (1) is fixedly connected to a motor (10). The surface of the operating box (1) is fixedly connected to a protective box (3). The inner wall of the protective box (3) is fixedly connected to a vacuum pump (11). One end of the vacuum pump (11) is connected to the interior of the operating box (1). The surface of the operating box (1) is provided with a uniform heating mechanism.

2. The uniformly heated electric vacuum drying oven according to claim 1, characterized in that: The uniform heating mechanism includes a motor (10) fixedly connected to the surface of the operating box (1). The output end of the motor (10) is fixedly connected to one end of the second drive shaft (9). A drive wheel (13) is fixedly connected to the surface of the second drive shaft (9). A driven wheel (12) is fixedly connected to the surface of the first drive shaft (8). A belt (23) is tensioned on the surfaces of the drive wheel (13) and the driven wheel (12).

3. The uniformly heated electric vacuum drying oven according to claim 2, characterized in that: The inner wall of the operating box (1) is fixedly connected with a plurality of L-shaped plates (14), and the inner wall of the L-shaped plates (14) is rotatably connected with a linkage shaft (22). The surfaces of the first drive shaft (8) and the second drive shaft (9) are both fixedly connected with a plurality of first bevel gears (15).

4. The uniformly heated electric vacuum drying oven according to claim 3, characterized in that: One end of the linkage shaft (22) is fixedly connected to a second bevel gear (16), the first bevel gear (15) meshes with the second bevel gear (16), one end of the linkage shaft (22) is fixedly connected to a protective frame (17), and the inner wall of the protective frame (17) is fixedly connected to a fixing plate (18).

5. The uniformly heated electric vacuum drying oven according to claim 4, characterized in that: The inner wall of the protective frame (17) is slidably connected to a clamping plate (20), and the inner wall of the protective frame (17) is threadedly connected to a threaded rod (21), one end of which is rotatably connected to the surface of the clamping plate (20).

6. The uniformly heated electric vacuum drying oven according to claim 4, characterized in that: Friction pads (19) are fixedly connected to the opposite surfaces of the fixing plate (18) and the clamping plate (20). A U-shaped baffle (24) is fixedly connected to the surface of the operation box (1). The belt (23) is located inside the U-shaped baffle (24). A knob controller (2) is fixedly installed on the surface of the operation box (1). A digital display screen (4) is fixedly installed on the surface of the knob controller (2).

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