Electrothermal blowing drying box

Abstract

The utility model discloses an electrothermal blowing drying box, which is applied to the field of electrothermal blowing drying boxes and comprises a box body, an air guide cavity is arranged in the inner wall of the box body, a heating pipe is arranged in the air guide cavity, an air passing hole is arranged between the air guide cavity and an inner cavity of the box body, an air passing groove is arranged at the bottom of the box body, and the heating pipe is arranged in the air passing groove. An air exhaust cavity communicated with the air passing groove is formed in the bottom of the box body; the air exhaust cavity communicated with the air passing groove is formed in the bottom of the box body, when the driving motor is started, the air exhaust fan blades are driven to rotate, so that negative pressure is generated at the air inlet groove of the air guide cavity, and external air flow enters the box body after being heated by the heating pipe. The hot air enters the air guide cavity, then enters the air suction cavity through the air passing groove and is exhausted through the air exhaust cavity, and part of the hot air exhausted through the air exhaust cavity enters the air guide cavity again to preheat the entering air in advance. The air heating speed of the heating pipe is increased, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of electric heating blast drying ovens, in particular to an electric heating blast drying oven. Background Art

[0002] The electric blast drying oven is also known as the "drying oven". As the name suggests, it uses electric heating to carry out blast cycle drying tests.

[0003] At present, a Chinese utility model with the announcement number CN210569593U discloses an electric hot air drying oven, including a shell and a shock absorbing assembly, wherein a first air inlet is provided at the top of the shell, and a blower is fixed at the bottom of the first air inlet, a top plate is provided at the bottom of the blower, and a bracket is provided at the top of the top plate, an electric heating pipe is provided on one side of the bracket, a plurality of side partitions are fixed at the bottom of the top plate, and a ventilation cavity is formed between the side partition and the adjacent side partition or shell, a plurality of fixing frames are fixed on one side of the side partition, a bottom plate is fixed at the bottom of the side partition, and an induced draft fan is provided at the bottom of the bottom plate, an air outlet is provided at the bottom side of the shell, a shock absorbing assembly is provided at the bottom of the shell, and the shock absorbing assembly includes a piston base, and a piston rod is sleeved on the inner side of the piston base. The drying oven can evenly dry medicinal materials, has a good drying effect, and can effectively reduce shock and is easy to move.

[0004] To sum up, although the electric blast drying box can achieve the purpose of drying, there are still certain problems in its use. For example, the electric blast drying box lacks a heat circulation structure. When the hot air inside the drying box is discharged to the outside of the electric blast drying box, the heat in the hot air will cause waste, and the purpose of energy saving cannot be achieved. At the same time, when the electric blast drying box is in use, it lacks a structure that can move the material rack for placing materials out of the electric blast drying box. When the staff takes the materials, it is easy to accidentally touch the inner wall of the electric blast drying box, resulting in burns to the hands of the staff, and the safety is low. Utility Model Content

[0005] The utility model aims to provide an electric heating blast drying box, which has the advantages of energy saving and scalding prevention.

[0006] The above-mentioned technical objective of the utility model is achieved through the following technical scheme: an electric hot air drying box, comprising a box body, an air guide cavity is opened in the inner wall of the box body, a heating tube is installed inside the air guide cavity, an air hole is opened between the air guide cavity and the inner cavity of the box body, an air groove is opened at the bottom of the box body, an exhaust cavity connected with the air groove is installed at the bottom of the box body, an exhaust fan blade is arranged inside the exhaust cavity, the surface of the exhaust cavity is symmetrically connected with the exhaust cavity, a support plate is arranged inside the box body, a screw rod is rotatably connected to the inside of the air groove through a bearing, a connecting block bolted to the support plate is threadedly connected to the surface of the screw rod, a support rod is symmetrically bolted to the top of the support plate, a clamping block is bolted to the support rod, and a placement plate clamped to the clamping block is arranged on the top of the support plate.

[0007] By adopting the above technical scheme, the utility model installs an exhaust chamber connected with the air outlet groove at the bottom of the box body, and when the driving motor is started, it will drive the exhaust fan blades to rotate, thereby generating negative pressure at the air inlet groove of the air guide chamber, and the external wind flow enters the box body after being heated by the heating tube, and then enters the exhaust chamber through the air outlet groove and is discharged through the exhaust chamber. A part of the hot air discharged through the exhaust chamber will enter the air guide chamber again, so as to preheat the incoming air in advance, increase the speed of heating the air by the heating tube, and achieve energy saving effect. By installing a screw rod inside the air outlet groove, when the servo motor is started, it can drive the support plate to move from the inside of the box body to the outside of the box body, so that the placement plate on the top of the support plate is moved to the outside of the box body, thereby facilitating the staff to take materials, preventing burns to the hands, and improving safety.

[0008] The utility model is further configured as follows: a driving motor is installed at the bottom of the air extraction chamber through a fixing piece, and an output end of the driving motor is fixedly sleeved with an air extraction fan blade.

[0009] The above technical solution is adopted to facilitate driving the exhaust fan blades to rotate.

[0010] The utility model is further configured as follows: a box door is hingedly connected to the front side of the box body by a hinge, the number of the box doors is two, and handles are installed on the box doors.

[0011] The box body is sealed by adopting the above technical solution.

[0012] The utility model is further configured as follows: legs are installed at the bottom of the box body, the number of the legs is four, and universal wheels are installed at the bottom of the legs.

[0013] The above technical solution is adopted to support the box body and facilitate the movement of the box body.

[0014] The utility model is further configured as follows: a temperature sensor is installed on the back of the box through a fixing piece, and the output end of the temperature sensor passes through the interior of the box, and a controller is installed on one side of the box through a fixing piece.

[0015] The above technical solution is adopted to facilitate the control of the heating tube to work.

[0016] The utility model is further configured as follows: a fixing seat is installed on the top of the box body, and a dustproof net is symmetrically installed on the fixing seat.

[0017] The above technical solution is adopted to prevent dust from entering into the interior of the box.

[0018] The utility model is further configured as follows: a servo motor is installed on the back of the box through a fixing piece, and the output end of the servo motor is bolted to the screw rod.

[0019] The above technical solution is adopted to facilitate driving the screw rod to rotate.

[0020] The utility model is further configured as follows: a sliding block is symmetrically bolted to the bottom of the support plate, and a sliding groove used in conjunction with the sliding block is provided inside the box body.

[0021] The above technical solution is adopted to slide and limit the support plate.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model installs an air extraction chamber connected to the air groove at the bottom of the box. When the driving motor is started, it will drive the air extraction fan blades to rotate, thereby generating negative pressure at the air inlet groove of the air guide chamber. The external airflow enters the box after being heated by the heating tube, and then enters the air extraction chamber through the air groove and is discharged through the exhaust chamber. A part of the hot air discharged through the exhaust chamber will enter the air guide chamber again to preheat the incoming air in advance. The speed at which the heating tube heats the air is increased to achieve energy-saving effects;

[0024] 2. The utility model installs a screw rod inside the air groove. When the servo motor is started, it can drive the support plate to move from the inside of the box to the outside of the box, so that the placement plate on the top of the support plate moves to the outside of the box. This makes it convenient for workers to take materials, prevents burns to their hands, and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a partial structural cross-sectional view of the utility model;

[0027] Figure 3 It is a structural back view of the box body in the utility model;

[0028] Figure 4 It is a partial structural schematic diagram of the utility model.

[0029] Figure numerals: 1. box body; 2. air guide cavity; 3. heating tube; 4. air hole; 5. air groove; 6. exhaust cavity; 7. exhaust fan blade; 8. exhaust cavity; 9. support plate; 10. screw rod; 11. connecting block; 12. support rod; 13. clamping block; 14. placement plate; 15. driving motor; 16. box door; 17. support leg; 18. universal wheel; 19. temperature sensor; 20. controller; 21. fixing seat; 22. servo motor; 23. slider; 24. slide groove; 25. dust net. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Embodiment 1:

[0032] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The vent 6 of the embodiment of the present invention is connected with the air inlet of the air inlet 8, and the vent 6 of the air inlet 8 is connected with the air outlet 8.

[0033] refer to Figure 2 A driving motor 15 is installed at the bottom of the air extraction chamber 6 through a fixing member, and the output end of the driving motor 15 is fixedly sleeved with the air extraction fan blade 7. By setting the driving motor 15, it is convenient to drive the air extraction fan blade 7 to rotate.

[0034] refer to Figure 1 The front of the box body 1 is hinged with a box door 16, the number of the box doors 16 is two, and a handle is installed on the box door 16. By setting the box door 16, the box body 1 is sealed.

[0035] refer to Figure 1 The bottom of the box body 1 is equipped with four legs 17, and the bottom of the legs 17 is equipped with universal wheels 18. By setting the legs 17 and the universal wheels 18, the box body 1 is supported and the movement of the box body 1 is facilitated.

[0036] refer to Figure 1 and Figure 3 A temperature sensor 19 is installed on the back of the box 1 through a fixing part, and the output end of the temperature sensor 19 passes through the interior of the box 1. A controller 20 is installed on one side of the box 1 through a fixing part. By setting the temperature sensor 19 and the controller 20, it is convenient to control the heating tube 3 to work.

[0037] refer to Figure 1 A fixing seat 21 is installed on the top of the box body 1, and a dustproof net 25 is symmetrically installed on the fixing seat 21. By setting the fixing seat 21 and the dustproof net 25, dust is prevented from entering the interior of the box body 1.

[0038] A brief description of the usage process: an exhaust chamber 6 connected to the air outlet groove 5 is installed at the bottom of the box body 1. When the driving motor 15 is started, the exhaust fan blades 7 are driven to rotate, thereby generating a negative pressure at the air inlet groove of the air guide cavity 2. The external airflow enters the box body 1 after being heated by the heating tube 3, and then enters the exhaust chamber 6 through the air outlet groove 5 and is discharged through the exhaust chamber 8. A part of the hot air discharged through the exhaust chamber 8 will enter the air guide cavity 2 again, so as to preheat the incoming air in advance, increase the speed at which the heating tube 3 heats the air, and achieve energy-saving effect.

[0039] Embodiment 2:

[0040] refer to Figure 2 , Figure 3 and Figure 4 , an electric hot air drying box, a support plate 9 is arranged inside the box body 1, a screw rod 10 is rotatably connected to the inside of the air groove 5 through a bearing, a connecting block 11 bolted to the support plate 9 is threadedly connected to the surface of the screw rod 10, a support rod 12 is symmetrically bolted to the top of the support plate 9, a clamping block 13 is bolted to the support rod 12, a placement plate 14 clamped to the clamping block 13 is arranged on the top of the support plate 9, by installing the screw rod 10 inside the air groove 5, when the servo motor 22 is started, the support plate 9 can be driven to move from the inside of the box body 1 to the outside of the box body 1, so that the placement plate 14 on the top of the support plate 9 is moved to the outside of the box body 1, so as to facilitate the staff to take the materials, prevent the occurrence of scalding hands, and improve safety.

[0041] refer to Figure 3 A servo motor 22 is installed on the back of the box body 1 through a fixing piece. The output end of the servo motor 22 is bolted to the screw rod 10. By setting the servo motor 22, it is convenient to drive the screw rod 10 to rotate.

[0042] refer to Figure 2 The bottom of the support plate 9 is symmetrically bolted with a slider 23, and the interior of the box body 1 is provided with a slide groove 24 used in conjunction with the slider 23. By setting the slider 23 and the slide groove 24, the support plate 9 is slidably limited.

[0043] Brief description of the use process: After the screw rod 10 is installed inside the air groove 5, when the servo motor 22 is started, it can drive the support plate 9 to move from the inside of the box 1 to the outside of the box 1, so that the placement plate 14 on the top of the support plate 9 moves to the outside of the box 1, thereby facilitating the staff to take materials, preventing burns to the hands, and improving safety.

[0044] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An electric hot air drying oven, comprising a box body (1), characterized in that: An air guide cavity (2) is provided in the inner wall of the box body (1), a heating tube (3) is installed inside the air guide cavity (2), an air hole (4) is provided between the air guide cavity (2) and the inner cavity of the box body (1), an air groove (5) is provided at the bottom of the box body (1), an air extraction cavity (6) connected to the air groove (5) is installed at the bottom of the box body (1), an air extraction fan blade (7) is arranged inside the air extraction cavity (6), and an exhaust fan (7) is symmetrically connected to the surface of the air extraction cavity (6). The box body (1) is provided with a support plate (9) inside, the air outlet groove (5) is rotatably connected with a screw rod (10) inside through a bearing, the surface of the screw rod (10) is threadedly connected with a connecting block (11) bolted to the support plate (9), the top of the support plate (9) is symmetrically bolted with a support rod (12), a clamping block (13) is bolted to the support rod (12), and a placement plate (14) clamped with the clamping block (13) is provided on the top of the support plate (9).

2. The electric heating blast drying oven according to claim 1, characterized in that: A driving motor (15) is installed at the bottom of the air extraction chamber (6) via a fixing member, and an output end of the driving motor (15) is fixedly sleeved with the air extraction fan blade (7).

3. The electric heating blast drying oven according to claim 1, characterized in that: The front of the box body (1) is hingedly connected with a box door (16), the number of the box doors (16) is two, and a handle is installed on the box door (16).

4. The electric heating blast drying oven according to claim 1, characterized in that: The bottom of the box body (1) is equipped with supporting legs (17), the number of the supporting legs (17) is four, and the bottom of the supporting legs (17) is equipped with universal wheels (18).

5. The electric heating blast drying oven according to claim 1, characterized in that: A temperature sensor (19) is installed on the back of the box (1) via a fixing member, and an output end of the temperature sensor (19) penetrates into the interior of the box (1), and a controller (20) is installed on one side of the box (1) via a fixing member.

6. The electric heating blast drying oven according to claim 1, characterized in that: A fixing seat (21) is installed on the top of the box body (1), and a dustproof net (25) is symmetrically installed on the fixing seat (21).

7. The electric heating blast drying oven according to claim 1, characterized in that: A servo motor (22) is mounted on the back of the box (1) via a fixing member, and an output end of the servo motor (22) is bolted to a lead screw (10).

8. The electric heating blast drying oven according to claim 1, characterized in that: The bottom of the support plate (9) is symmetrically bolted with a slide block (23), and the interior of the box body (1) is provided with a slide groove (24) used in conjunction with the slide block (23).

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