Electrothermal blowing drying box capable of avoiding sample pollution

Abstract

The utility model discloses an electrothermal blowing drying box capable of avoiding sample pollution, which comprises a drying box main body, a support component arranged in the drying box main body, a fixing component arranged on the support component, a filter component arranged on the drying box main body, a control module and a temperature sensor. Samples are placed on the perforated plates, the perforated plates are arranged in two layers, hot air can be conveniently intercepted, the samples are kept being heated by the hot air, the perforated plates can be conveniently assembled through the sliding rails according to needs, more samples can be contained, or the perforated plates can be adjusted according to the sizes of the samples, and blown hot air can be filtered through the filter assembly. Meanwhile, the first filter part can be drawn out and is convenient to replace, air can be filtered through an activated carbon layer, the sample is prevented from being polluted by external air, and large-particle dust is blocked through ventilation holes of a filter plate.

Description

Technical Field

[0001] The utility model relates to the technical field of electrothermal blast boxes, in particular to an electrothermal blast drying oven that can avoid sample contamination. Background Art

[0002] The electrothermal blast drying oven is a common laboratory equipment, mainly used to provide a stable temperature environment for various experiments, such as measuring the moisture in coal, drying items, drying heat treatment, etc. The current electrothermal blast drying oven cannot effectively isolate the pollution in the air. Therefore, an electrothermal blast drying oven that can avoid sample contamination is proposed to effectively isolate the pollutants in the external air and avoid sample contamination.

[0003] After retrieval, a patent with the Chinese patent application number 202320253900.1 discloses an electrothermal blast drying oven, which includes a drying chamber. A bracket is arranged in the drying chamber. A heating element and a blower are arranged on one side of the machine body corresponding to the drying chamber. Multiple horizontally arranged heat insulation plates are arranged in the drying chamber. The multiple heat insulation plates divide the drying chamber into multiple drying layers. The heating element includes multiple electric heating tubes, and each electric heating tube corresponds to each drying layer and is arranged on the side wall of the machine body corresponding to the drying chamber. The drying device in the above literature has the following deficiencies: the support plate of the device adopts an integral design without corresponding ventilation structures, resulting in poor air fluidity inside the device, which may reduce the drying effect and is not conducive to drying. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an electrothermal blast drying oven that can avoid sample contamination.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An electrothermal blast drying oven that can avoid sample contamination includes a drying oven main body. A support assembly is arranged inside the drying oven main body, and a fixing assembly is arranged on the support assembly. A filtering assembly is arranged on the drying oven main body. The drying oven also includes a control module and a temperature sensor. The support assembly includes:

[0007] Sliding rails, several sliding rails are arranged and installed on both sides inside the drying oven main body;

[0008] Hole plates, several hole plates are arranged. Sliding convex structures are arranged on both sides of the hole plates, which are adapted to the sliding rails. Two layers of hole plates are arranged, and the ventilation holes of each layer of hole plates are staggered from each other.

[0009] As a further scheme of the utility model: several groups of fixing components are arranged, and the fixing components are installed in front of the support assembly. The fixing components include:

[0010] Fixing brackets, several fixing brackets are provided, and sliding grooves are provided inside the fixing brackets;

[0011] First connecting rods, several first connecting rods are provided, the first connecting rods are installed in the sliding grooves of the fixing brackets, mounting holes are provided at both ends of the first connecting rods, and two first connecting rods are connected by a rotating shaft;

[0012] Second connecting rods, several second connecting rods are provided, the second connecting rods are installed at both ends of the first connecting rods, the first connecting rods and the second connecting rods are rotatably connected, and several fixing grooves are provided on both inner walls of the drying box body, and the fixing grooves are located below the slide rails;

[0013] Sliding rods, several sliding rods are provided, and the sliding rods are installed below the first connecting rods.

[0014] As a further solution of the present utility model: The fixing assembly further includes anti-slip rubber sleeves, several anti-slip rubber sleeves are provided, and the anti-slip rubber sleeves are installed at both ends of the second connecting rods.

[0015] As a further solution of the present utility model: The drying box further includes a hot air blower. A cylindrical hollow structure is provided inside one side of the drying box body, a hot air blower is provided on the outside of the structure, the hot air blower is electrically connected to the control module, and several air inlet holes are provided on one side of the drying box body close to the slide rail.

[0016] As a further solution of the present utility model: The filtering assembly includes: a first filtering member, the first filtering member includes a sliding member and a filtering structure, the filtering structure is installed on the sliding member, the sliding member is installed on the drying box body through a sliding groove, and is located between the hot air blower and the air inlet holes of the drying box body. A sealing structure is provided at the connection between the first filtering member and the drying box body.

[0017] As a further solution of the present utility model: The filtering structure on the first filtering member includes:

[0018] Filter plates, several filter plates are provided, the filter plates are located on both sides of the first filtering member, and several ventilation holes are provided on the filter plates, and the outer diameter of the ventilation holes is larger than the inner diameter;

[0019] Activated carbon layer, the activated carbon layer is provided between the filter plates.

[0020] As a further solution of the present utility model: The filtering assembly further includes:

[0021] Air outlet, an air outlet hole is provided at the top of the drying box body, the air outlet is installed on the air outlet hole, and an installation groove is provided on the air outlet;

[0022] Rotating member, the rotating member is provided at the top of the drying box body;

[0023] Filter element two, the filter element two includes an annular base and a filtering structure. The annular base is installed on the rotating part, the annular base is rotatable, and is rotatably installed in the air outlet. The filtering structure is installed on the annular base, and the filtering structure includes a filter plate and an activated carbon layer.

[0024] As a further solution of the present utility model: the drying oven further includes:

[0025] A door, the door is connected to the drying oven body through a hinge;

[0026] Glass, the glass is installed on the door;

[0027] A sealing strip, the sealing strip is installed on the door, and a sealing groove is provided on the front surface of the drying oven body, which is adapted to the sealing strip.

[0028] The beneficial effects of the present utility model are:

[0029] 1. Place the sample on the hole plate. The hole plate is provided with two layers, which is convenient for intercepting the hot air, so that the hot air keeps heating the sample. Through the slide rail, the hole plate can be assembled as needed, which can accommodate more samples or adjust the hole plate according to the size of the sample.

[0030] 2. By pulling the sliding rod, the second connecting rod moves, and the second connecting rod is moved into the fixing groove of the drying oven body, so that the supporting assembly is fixed.

[0031] 3. The control module controls the hot air blower. According to the detection result of the temperature sensor, the control module adjusts the output power of the hot air blower, so that the temperature in the drying oven can be adjusted as needed.

[0032] 4. By setting the filtering assembly, the blown hot air can be filtered, and at the same time, the first filter element can be pulled out for easy replacement.

[0033] 5. The air can be filtered through the activated carbon layer to prevent the outside air from polluting the sample, and the ventilation holes of the filter plate block large particles of dust.

[0034] 6. The second filter element can be rotated out through the rotating part, which is convenient for replacing the filtering structure, and the second filter element can prevent impurities in the outside air from entering the drying oven. Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of an electrothermal blast drying oven that can avoid sample contamination proposed by the present utility model;

[0036] Figure 2 It is a schematic internal structural diagram of an electrothermal blast drying oven that can avoid sample contamination proposed by the present utility model;

[0037] Figure 3Schematic structural diagram of a support assembly of an electric hot air drying oven that can avoid sample contamination proposed by the present utility model;

[0038] Figure 4 Schematic structural diagram of a fixing assembly of an electric hot air drying oven that can avoid sample contamination proposed by the present utility model;

[0039] Figure 5 Schematic structural diagram of a filtration structure section of a filtration assembly in an electric hot air drying oven that can avoid sample contamination proposed by the present utility model.

[0040] In the figure: 1 - drying oven main body, 2 - hot air blower, 3 - door, 4 - glass, 5 - sealing strip, 6 - first filter element, 7 - air outlet, 8 - rotating member, 9 - second filter element, 10 - slide rail, 11 - fixing bracket, 12 - perforated plate, 13 - first connecting rod, 14 - sliding rod, 15 - second connecting rod, 16 - anti-slip rubber sleeve, 17 - filter plate, 18 - activated carbon layer. Specific implementation manners

[0041] The technical solutions of the present utility model will be further described in detail below in conjunction with specific implementation manners.

[0042] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0043] An electric hot air drying oven that can avoid sample contamination, as Figure 1 , Figure 2 , Figure 3 shown, includes a drying oven main body 1. A support assembly is provided inside the drying oven main body 1, a fixing assembly is provided on the support assembly, a filtration assembly is provided on the drying oven main body 1. The drying oven further includes a control module and a temperature sensor. The support assembly includes:

[0044] Slide rails 10, several slide rails 10 are provided, and the slide rails 10 are installed on both sides inside the drying oven main body 1;

[0045] Perforated plates 12, several perforated plates 12 are provided. Sliding convex structures are provided on both sides of the perforated plates 12, which are adapted to the slide rails 10. The perforated plates 12 are provided with two layers, and the ventilation holes of each layer of perforated plates 12 are staggered from each other.

[0046] By placing the sample on the perforated plate 12, which is arranged in two layers to facilitate the interception of hot air and keep the hot air supplying heat to the sample. The perforated plate 12 can be assembled conveniently according to needs through the slide rail 10, which can accommodate more samples or adjust the perforated plate 12 according to the size of the sample.

[0047] As Figure 3 , Figure 4 shown, several groups of fixing components are provided. The fixing components are installed in front of the supporting components and include:

[0048] Fixing frames 11, several fixing frames 11 are provided, and sliding grooves are arranged inside the fixing frames 11;

[0049] First connecting rods 13, several first connecting rods 13 are provided. The first connecting rods 13 are installed in the sliding grooves of the fixing frames 11. Mounting holes are arranged at both ends of the first connecting rods 13, and two first connecting rods 13 are connected by a rotating shaft;

[0050] Second connecting rods 15, several second connecting rods 15 are provided. The second connecting rods 15 are installed at both ends of the first connecting rods 13, and the first connecting rods 13 are rotatably connected to the second connecting rods 15. Several fixing grooves are arranged on both inner walls of the drying box body 1, and the fixing grooves are located below the slide rail 10;

[0051] Sliding rods 14, several sliding rods 14 are provided. The sliding rods 14 are installed below the first connecting rods 13.

[0052] By pulling the sliding rods 14, the second connecting rods 15 are moved, and the second connecting rods 15 are moved into the fixing grooves of the drying box body 1 to fix the supporting components.

[0053] As Figure 4 shown, the fixing components further include anti-slip rubber sleeves 16. Several anti-slip rubber sleeves 16 are provided, and the anti-slip rubber sleeves 16 are installed at both ends of the second connecting rods 15.

[0054] By providing the anti-slip rubber sleeves 16, the second connecting rods 15 can be fixed more firmly, preventing the fixing components from loosening.

[0055] As Figure 1 shown, the drying box further includes a hot air blower 2. A cylindrical hollow structure is arranged inside one side of the drying box body 1, and the hot air blower 2 is arranged outside the structure. The hot air blower 2 is electrically connected to the control module. Several air inlet holes are arranged on one side of the drying box body 1 close to the slide rail 10.

[0056] The control module controls the hot air blower 2. According to the detection result of the temperature sensor, the control module adjusts the output power of the hot air blower to adjust the temperature inside the drying box as needed.

[0057] As Figure 1 ,Figure 2 As shown, the filter assembly includes: a filter element 6, the filter element 6 includes a sliding member and a filter structure, the filter structure is installed on the sliding member, the sliding member is installed on the drying box body 1 through a slide groove, and is located between the hot air blower 2 and the air inlet of the drying box body 1. A sealing structure is provided at the connection between the filter element 6 and the drying box body 1.

[0058] By setting the filter assembly, the hot air blown in can be filtered, and the filter element 6 can be withdrawn for easy replacement.

[0059] like Figure 5 As shown, the filtering structure on the filter element 6 includes:

[0060] A filter plate 17, wherein a plurality of filter plates 17 are provided, and the filter plates 17 are located on both sides of the filter element 6, and a plurality of ventilation holes are provided on the filter plates 17, and the outer diameter of the ventilation hole is larger than the inner diameter;

[0061] An activated carbon layer 18 is arranged between the filter plates 17 .

[0062] The air can be filtered through the activated carbon layer 18 to prevent the external air from contaminating the sample, and the ventilation holes of the filter plate 17 block large particles of dust.

[0063] like Figure 1 , Figure 2 As shown, the filter assembly also includes:

[0064] An air outlet 7 is provided on the top of the drying box body 1, and the air outlet 7 is installed on the air outlet, and a mounting groove is provided on the air outlet 7;

[0065] A rotating member 8, wherein the rotating member 8 is arranged on the top of the drying box body 1;

[0066] The filter element 2 9 includes an annular base and a filtering structure. The annular base is mounted on the rotating element 8. The annular base is rotatable and is rotatably mounted in the air outlet 7. The filtering structure is mounted on the annular base. The filtering structure includes a filter plate 17 and an activated carbon layer 18.

[0067] The filter element 2 9 can be rotated out by the rotating element 8, so as to facilitate the replacement of the filter structure. The filter element 2 9 can prevent impurities in the outside air from entering the drying box.

[0068] like Figure 1 As shown, the drying box also includes:

[0069] Door 3, door 3 is connected to the drying box body 1 through a hinge;

[0070] Glass 4, the glass 4 is installed on the door 3;

[0071] The sealing strip 5 is installed on the door 3 , and a sealing groove is provided on the front of the drying box body 1 to match the sealing strip 5 .

[0072] The glass is provided to facilitate the operator to check the drying condition of the sample, and the sealing strip 5 can seal the device to prevent the heat inside the device from escaping.

[0073] Working principle: the operator installs the support assembly according to the size and quantity of the samples. After the support assembly is installed, the fixing assembly is used to fix the support assembly, and then the sample is placed on the support assembly, the door 3 is closed, and the control module is used to drive the hot air blower 2 to heat up the device. The control module adjusts the temperature according to the detection data of the temperature sensor. After the drying is completed, the sample is taken out. If the filter assembly needs to be replaced, the filter element 1 6 can be pulled out, the filter element 2 9 can be rotated out, and then the filter structure can be replaced.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric heating blast drying oven capable of avoiding sample contamination, comprising a drying oven body (1), characterized in that: A support assembly is arranged inside the drying box body (1), a fixing assembly is arranged on the support assembly, a filter assembly is arranged on the drying box body (1), the drying box further comprises a control module and a temperature sensor, and the support assembly comprises: Slide rails (10), wherein a plurality of the slide rails (10) are provided and the slide rails (10) are installed on both sides of the interior of the drying box body (1); A plurality of hole plates (12) are provided, and sliding protrusion structures are provided on both sides of the hole plates (12) to match the slide rails (10). The hole plates (12) are provided in two layers, and the ventilation holes of the hole plates (12) in each layer are staggered.

2. The electric heating blast drying oven capable of avoiding sample contamination according to claim 1, characterized in that: The fixing assembly is provided with several groups, and the fixing assembly is installed in front of the supporting assembly, and the fixing assembly includes: A fixing frame (11), wherein a plurality of fixing frames (11) are provided, and a sliding groove is provided inside the fixing frame (11); Connecting rod one (13), wherein a plurality of connecting rods one (13) are provided, the connecting rod one (13) is installed in a sliding groove of the fixing frame (11), mounting holes are provided at both ends of the connecting rod one (13), and the two connecting rods one (13) are connected via a rotating shaft; Connecting rod 2 (15), a plurality of connecting rods 2 (15) are provided, the connecting rods 2 (15) are installed at both ends of the connecting rod 1 (13), the connecting rod 1 (13) is rotatably connected to the connecting rod 2 (15), and a plurality of fixing grooves are provided on the inner walls of both sides of the drying box body (1), and the fixing grooves are located below the slide rail (10); A plurality of sliding rods (14) are provided, and the sliding rods (14) are installed below the first connecting rod (13).

3. The electric heating blast drying oven capable of avoiding sample contamination according to claim 2, characterized in that: The fixing assembly further comprises an anti-slip rubber sleeve (16), a plurality of which are provided, and the anti-slip rubber sleeves (16) are mounted on both ends of the second connecting rod (15).

4. The electric heating blast drying oven capable of avoiding sample contamination according to claim 3, characterized in that: The drying box further comprises a hot air blower (2); a cylindrical hollow structure is arranged inside one side of the drying box body (1); a hot air blower (2) is arranged outside the structure; the hot air blower (2) is electrically connected to the control module; and a plurality of air inlet holes are arranged on one side of the drying box body (1) close to the slide rail (10).

5. The electric heating blast drying oven capable of avoiding sample contamination according to claim 4, characterized in that: The filter assembly comprises: a filter element 1 (6), the filter element 1 (6) comprising a sliding element and a filter structure, the filter structure being mounted on the sliding element, the sliding element being mounted on the drying box body (1) through a slide groove, and being located between the hot air blower (2) and the air inlet of the drying box body (1), and a sealing structure being provided at the connection between the filter element 1 (6) and the drying box body (1).

6. The electric heating blast drying oven capable of avoiding sample contamination according to claim 5, characterized in that: The filtering structure on the filter element 1 (6) comprises: A filter plate (17), wherein a plurality of filter plates (17) are provided, the filter plates (17) are located on both sides of the filter element (6), and a plurality of ventilation holes are provided on the filter plate (17), wherein the outer diameter of the ventilation hole is larger than the inner diameter; An activated carbon layer (18) is arranged between the filter plates (17).

7. The electric heating blast drying oven capable of avoiding sample contamination according to claim 6, characterized in that: The filter assembly also includes: An air outlet (7), wherein the top of the drying box body (1) is provided with an air outlet, the air outlet (7) is mounted on the air outlet, and a mounting groove is provided on the air outlet (7); A rotating member (8), wherein the rotating member (8) is arranged on the top of the drying box body (1); The second filter element (9) comprises an annular base and a filtering structure. The annular base is mounted on a rotating member (8). The annular base is rotatable and is rotatably mounted in the air outlet (7). The filtering structure is mounted on the annular base. The filtering structure comprises a filtering plate (17) and an activated carbon layer (18).

8. The electric heating blast drying oven capable of avoiding sample contamination according to claim 7, characterized in that: The drying oven also includes: A door (3), the door (3) is connected to the drying box body (1) via a hinge; Glass (4), the glass (4) being mounted on the door (3); A sealing strip (5) is installed on the door (3); a sealing groove is provided on the front of the drying box body (1) and is matched with the sealing strip (5).

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