Electric heating constant-temperature drying box for surveying samples

Abstract

The utility model discloses an electric heating constant temperature drying box for surveying samples, which relates to the technical field of drying boxes and comprises a constant temperature box, one side of the outer wall of the constant temperature box is rotatably connected with a movable door through a rotating shaft, and the bottom end of the inner wall of the constant temperature box is simultaneously and fixedly connected with a plurality of limiting guide rails. A sample tray is connected to the bottom end of the interior of the constant-temperature box in a sliding mode through a limiting guide rail, the outer wall of the bottom end of the sample tray is connected with the bottom end of the inner wall of the constant-temperature box in a sliding mode, and a plurality of circular open holes are formed in the two sides of the inner wall of the constant-temperature box. According to the constant-temperature box, a continuous hot air circulation is formed, uniform distribution of the temperature in the constant-temperature box is ensured in the circulation process, the situation of local overheating or insufficient temperature is avoided, the consistency of the drying treatment effect of samples is effectively improved, the temperature of the heating copper pipe is accurately controlled through a temperature and humidity sensor, and the drying effect is improved. And the temperature in the constant-temperature box is ensured to be within a set floating range.

Description

Technical Field

[0001] The utility model relates to the technical field of drying boxes, in particular to an electric heating constant temperature drying box for surveying samples. Background Art

[0002] A constant temperature drying oven is a commonly used experimental equipment, widely used in scientific research laboratories, pharmaceutical industry, electronics industry and other fields. The survey samples are placed inside the constant temperature drying oven. Its main function is to control the temperature and humidity so that the samples can be dried or heat-treated under constant conditions, thereby ensuring the accuracy and repeatability of the experimental data.

[0003] According to the search, Chinese patent document, announcement number: CN 222123729 U, discloses an electric constant temperature drying oven. The utility model discloses an electric constant temperature drying oven, including a box body, a driving mechanism and a plurality of placement trays are provided in the box body, a plurality of gear teeth are provided on one side of the placement tray, the driving mechanism drives the placement tray to move laterally in the box body through the gear teeth, a slide rod and a slide groove are provided in the box body, one side of the placement tray is slidably installed on the slide rod, and the other side of the placement tray is slidably installed in the slide groove through a plurality of pulleys, a heater is also provided in the box body, and a temperature controller and a controller are provided outside the box body, the driving mechanism includes a motor fixed inside the box body, a gear is fixed on the driving shaft of the motor, and the gear is meshed and connected to the gear teeth. The electric constant temperature drying oven maintains a constant temperature environment inside through the thermostat and the heater, a driving mechanism is provided inside the box body, and the corresponding placement tray is driven by the driving mechanism to slide out or slide in inside the box body, so that people do not need to enter the box body to directly take it, thereby avoiding burns to people's hands.

[0004] The above device only heats the interior through a thermostat and heater. Although it can provide a certain heating effect, it lacks an effective air circulation mechanism. Since it relies solely on the natural flow of air, it is difficult for heat to spread evenly throughout the entire box, resulting in overheating in some areas and insufficient temperature in other areas, which affects the consistency of the sample. At the same time, local overheating may also cause sample deterioration or damage, while areas with insufficient temperature cannot achieve the expected drying effect. In view of this, we provide an electric constant temperature drying oven for survey samples. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an electric constant temperature drying oven for survey samples.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an electric constant temperature drying oven for surveying samples, comprising a constant temperature oven, a movable door being rotatably connected to one side of the outer wall of the constant temperature oven via a rotating shaft, and a plurality of limiting guide rails being fixedly connected to the bottom end of the inner wall of the constant temperature oven at the same time, a sample tray being slidably connected to the bottom end of the inner bottom end of the constant temperature oven via the limiting guide rails, and the outer wall of the bottom end of the sample tray being slidably connected to the bottom end of the inner wall of the constant temperature oven, a plurality of circular openings being provided on both sides of the inner wall of the constant temperature oven, a left side plate being fixedly connected to one side of the inner interior of the constant temperature oven, a right side plate being fixedly connected to one side of the inner interior of the constant temperature oven, and a plurality of air circulation ducts being fixedly connected to the inner interior of the constant temperature oven at the same time.

[0007] As mentioned above, the outer wall of one end of the limiting guide rail is fixedly connected to one side of the outer wall of the sample tray, and the top surface of the outer wall of the limiting guide rail is slidably connected to one side of the interior of the sample tray.

[0008] As mentioned above, a plurality of temperature and humidity sensors are fixedly connected to both sides of the top surface of the sample tray, and the plurality of temperature and humidity sensors are distributed on both sides inside the constant temperature box.

[0009] As mentioned above, a heating copper tube is fixedly connected to one side of the interior of the constant temperature box, and the heating copper tube is wrapped around the outer wall of the air circulation duct close to the right side plate.

[0010] As mentioned above, the outer wall of one end of the air circulation duct is connected to one side of the outer wall of the left side plate, and a plurality of exhaust fans are fixedly connected to one side of the inner wall of the left side plate.

[0011] As mentioned above, the air circulation duct is connected to the outer wall of the right side plate away from one end of the left side plate, and a plurality of intake fans and exhaust fans are fixedly connected to the inner wall of the left side plate, all corresponding to the circular openings.

[0012] Compared with the existing technology, this electric constant temperature drying oven for survey samples has the following beneficial effects:

[0013] 1. Before drying and preserving the sample, the sample tray can be taken out first, and the survey sample can be placed at the center of the top surface of the sample tray. Then the sample tray is pushed into the constant temperature box through the limiting guide rail. When the survey sample needs to be taken out, the sample tray can be directly taken out and the survey sample can be transferred.

[0014] 2. After the survey sample is placed in the constant temperature box, the utility model performs drying work. Multiple heating copper tubes heat the air in the air circulation duct, and the heated air is drawn into the constant temperature box through the air intake fan. At the same time, the cold air inside the constant temperature box is drawn back to the air circulation duct. The cold air is heated again when passing through the heating copper tubes, and then sent back to the constant temperature box by the air intake fan, forming a continuous hot air circulation. This circulation process ensures the uniform distribution of temperature inside the constant temperature box, avoids local overheating or insufficient temperature, and effectively improves the consistency of the drying effect of the sample. At the same time, the temperature of the heating copper tube is accurately controlled by the temperature and humidity sensor to ensure that the temperature inside the constant temperature box is within the set floating range.

[0015] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a partially disassembled three-dimensional structure of the position limiting guide rail of the utility model;

[0018] Figure 3 It is a partially cutaway three-dimensional structural diagram of the thermostat of the utility model;

[0019] Figure 4 This is a schematic diagram of a partial three-dimensional structure of the exhaust fan of the present invention;

[0020] Figure 5 It is a partial three-dimensional structural diagram of the air intake fan of the present invention.

[0021] In the figure: 1. Constant temperature box; 2. Movable door; 201. Limiting guide rail; 202. Sample tray; 203. Temperature and humidity sensor; 3. Circular opening; 301. Left side panel; 302. Right side panel; 303. Air circulation duct; 304. Heating copper tube; 305. Exhaust fan; 306. Intake fan. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-5 As shown, the utility model provides a technical solution: an electric constant temperature drying oven for surveying samples, comprising a constant temperature oven 1, a movable door 2 is rotatably connected to one side of the outer wall of the constant temperature oven 1 through a rotating shaft, and a plurality of limiting guide rails 201 are fixedly connected to the bottom end of the inner wall of the constant temperature oven 1 at the same time, a sample tray 202 is slidably connected to the bottom end of the inner wall of the constant temperature oven 1 through the limiting guide rails 201, and the outer wall of the bottom end of the sample tray 202 is slidably connected to the bottom end of the inner wall of the constant temperature oven 1, a plurality of circular openings 3 are provided on both sides of the inner wall of the constant temperature oven 1, and a left side plate 301 is fixedly connected to one side of the inner wall of the constant temperature oven 1, a right side plate 302 is fixedly connected to one side of the inner wall of the constant temperature oven 1, and a plurality of air circulation ducts 303 are fixedly connected to the inner wall of the constant temperature oven 1 at the same time.

[0024] Before drying and preserving the sample, the sample tray 202 can be taken out first, and the survey sample can be placed at the center of the top surface of the sample tray 202. Then, the sample tray 202 can be pushed into the constant temperature box 1 through the limiting guide rail 201. After the survey sample is placed in the constant temperature box 1, during the drying work, multiple heating copper tubes 304 heat the air in the air circulation duct 303, and the heated air is drawn into the constant temperature box 1 through the intake fan 306. At the same time, the cold air inside the constant temperature box 1 is drawn back to the air circulation duct 303. The cold air is heated again when passing through the heating copper tubes 304, and then sent back to the constant temperature box 1 by the intake fan 306, forming a continuous hot air circulation. This circulation process ensures the uniform distribution of temperature inside the constant temperature box 1, avoids local overheating or insufficient temperature, and effectively improves the consistency of the drying effect of the sample. At the same time, the temperature and humidity sensor 203 accurately controls the temperature of the heating copper tubes 304 to ensure that the temperature inside the constant temperature box 1 is within the set floating range.

[0025] like Figure 1-2 As shown, the outer wall of one end of the limiting guide rail 201 is fixedly connected to one side of the outer wall of the sample tray 202, and the top surface of the outer wall of the limiting guide rail 201 is slidably connected to one side of the inner side of the sample tray 202. The limiting guide rail 201 can effectively limit the movement trajectory of the sample tray 202.

[0026] Multiple temperature and humidity sensors 203 are fixedly connected to both sides of the top surface of the sample tray 202, and the multiple temperature and humidity sensors 203 are distributed on both sides of the constant temperature box 1. The device can adjust the temperature of the heating copper tube 304 according to the value detected by the temperature sensor.

[0027] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, a heating copper tube 304 is fixedly connected to one side of the interior of the constant temperature box 1, and the heating copper tube 304 is wrapped around the outer wall of the air circulation duct 303 close to the right side plate 302. By wrapping the heating copper tube 304 around the outer wall of the air circulation duct 303, the heat emitted by the heating copper tube 304 can be used to heat the air inside the air circulation duct 303.

[0028] The outer wall of one end of the air circulation duct 303 is connected to the outer wall of the left side plate 301, and multiple exhaust fans 305 are fixedly connected to the inner wall of the left side plate 301. The air circulation duct 303 passes through the left side plate 301 and is connected to the exhaust fans 305, so that the exhaust fans 305 can draw the air inside the constant temperature box 1 into the air circulation duct 303.

[0029] The air circulation duct 303 is connected to the outer wall of one end of the left plate 301 and the outer wall of the right plate 302, and a plurality of air intake fans 306 are fixedly connected to the inner wall of the left plate 301. The air intake fans 306 and the exhaust fans 305 correspond to the circular openings 3. The air circulation duct 303 is passed through the right plate 302 and connected to the air intake fans 306, so that the air intake fans 306 can send the heated air into the interior of the constant temperature box 1 through the circular openings 3.

[0030] Working principle: The moving trajectory of the sample tray 202 can be effectively limited by the limiting guide rail 201. The device can adjust the temperature of the heating copper tube 304 according to the value detected by the temperature sensor. The heating copper tube 304 is wrapped around one side of the outer wall of the air circulation duct 303, and the heat emitted by it can be used to heat the air inside the air circulation duct 303. The air circulation duct 303 is passed through the left plate 301 and connected to the exhaust fan 305, so that the exhaust fan 305 can draw the air inside the constant temperature box 1 into the air circulation duct 303. The air circulation duct 303 is passed through the right plate 302 and connected to the intake fan 306, so that the intake fan 306 can send the heated air into the constant temperature box 1 through the circular opening 3.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric constant temperature drying oven for survey samples, comprising a constant temperature oven (1), characterized in that: One side of the outer wall of the thermostatic box (1) is rotatably connected to a movable door (2) via a rotating shaft, and the bottom end of the inner wall of the thermostatic box (1) is fixedly connected to a plurality of limiting guide rails (201), the bottom end of the interior of the thermostatic box (1) is slidably connected to a sample tray (202) via the limiting guide rails (201), and the outer wall of the bottom end of the sample tray (202) is slidably connected to the bottom end of the inner wall of the thermostatic box (1), a plurality of circular openings (3) are provided on both sides of the inner wall of the thermostatic box (1), and one side of the interior of the thermostatic box (1) is fixedly connected to a left side plate (301), one side of the interior of the thermostatic box (1) is fixedly connected to a right side plate (302), and the interior of the thermostatic box (1) is fixedly connected to a plurality of air circulation ducts (303).

2. The electric constant temperature drying oven for survey samples according to claim 1, characterized in that: The outer wall of one end of the limiting guide rail (201) is fixedly connected to one side of the outer wall of the sample tray (202), and the top surface of the outer wall of the limiting guide rail (201) is slidably connected to one side of the interior of the sample tray (202).

3. The electric constant temperature drying oven for survey samples according to claim 2, characterized in that: A plurality of temperature and humidity sensors (203) are fixedly connected to both sides of the top surface of the sample tray (202), and the plurality of temperature and humidity sensors (203) are distributed on both sides inside the constant temperature box (1).

4. The electric constant temperature drying oven for survey samples according to claim 1, characterized in that: A heating copper tube (304) is fixedly connected to one side of the interior of the thermostatic box (1), and the heating copper tube (304) is wound around the outer wall of the air circulation duct (303) close to the right side plate (302).

5. The electric constant temperature drying oven for survey samples according to claim 1, characterized in that: The outer wall of one end of the air circulation duct (303) is connected to one side of the outer wall of the left side plate (301), and a plurality of exhaust fans (305) are fixedly connected to one side of the inner wall of the left side plate (301).

6. The electric constant temperature drying oven for survey samples according to claim 1, characterized in that: The air circulation duct (303) is connected to the outer wall of one end of the left plate (301) and the outer wall of the right plate (302) through one side, and a plurality of air intake fans (306) are fixedly connected to the inner wall of the left plate (301), and the air intake fans (306) and the exhaust fans (305) are both corresponding to the circular openings (3).

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