Electrically heated air-blast drying oven

Abstract

The utility model relates to electric heat blowing drying box technical field, propose a kind of electric heat blowing drying box, including drying box, still include ventilation board, automatic return mechanism, stand, mounting ring, mounting plate, rack, T-shaped plate, transmission seat, positioning plugboard and adjusting mechanism, ventilation board is movably arranged in the inside of drying box by two square plates, and can be moved along square plate, two groups of automatic return mechanism are arranged in the two sides of drying box inner wall, ventilation board can be automatically returned under the drive of automatic return mechanism, the upside of ventilation board is equipped with multiple stand, multiple mounting rings are sleeved on stand. Through the above technical scheme, for solving the electric heat blowing drying box in the prior art, because rack is installed in the inside of drying box by bolt, lead to when the spacing between multiple racks is adjusted, need to consume more time, it is difficult to quickly realize the spacing adjustment between multiple racks.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating forced-air drying ovens, specifically, to an electric heating forced-air drying oven. Background Technology

[0002] An electric heating drying oven (commonly known as a drying oven) is a laboratory device that uses electric heating to achieve forced convection drying. It mainly consists of a stainless steel inner liner, an electric heater, a PID temperature control system, and a circulating fan. The operating temperature range is from room temperature to 300℃, with some high-temperature models reaching 600℃. It uses a fan to drive air through the heating element to form hot air circulation, and with an adjustable air inlet and outlet device, it accelerates moisture evaporation. The temperature uniformity can reach ±1℃ to ±2.5%. In existing electric heating drying ovens, materials need to be placed on racks inside the oven for drying. However, due to the varying sizes and shapes of the materials, the spacing between the racks needs to be adjusted to achieve the maximum usable volume. Currently, the racks are typically bolted to the inside of the oven, requiring operators to use tools to remove the bolts before adjusting the spacing between multiple racks. This is inconvenient and makes it difficult to quickly adjust the spacing between multiple racks. Utility Model Content

[0003] This utility model proposes an electric heating forced-air drying oven to solve the problem in the prior art where the racks are bolted to the inside of the drying oven, which makes it time-consuming to adjust the spacing between multiple racks and difficult to achieve quick adjustment.

[0004] The technical solution of this utility model is as follows: An electric heating forced-air drying oven includes a drying oven, a ventilation plate, an automatic return mechanism, columns, mounting rings, mounting plates, a placement rack, a T-shaped plate, a transmission seat, a positioning insert plate, and an adjustment mechanism. The ventilation plate is movably disposed inside the drying oven via two square plates and can move along the square plates. Two sets of automatic return mechanisms are provided on both sides of the inner wall of the drying oven. The ventilation plate can automatically return to its original position under the drive of the automatic return mechanisms. Multiple columns are installed on the upper side of the ventilation plate, and multiple mounting rings are sleeved on the columns. The mounting rings can move vertically along the columns. The mounting plates are respectively installed between two corresponding mounting rings and move synchronously with the mounting rings. Multiple placement racks are installed between corresponding mounting rings and mounting plates and move synchronously with the mounting rings and mounting plates. T-shaped plates are installed on both sides of the inner bottom wall of the mounting plate. A transmission seat is sleeved on the T-shaped plate and can move along the T-shaped plate. A positioning insert is installed on the outside of the transmission seat and moves synchronously with the transmission seat. An adjustment mechanism is provided on one of the mounting plates on both sides for adjusting the positioning state of the positioning insert.

[0005] The automatic return mechanism includes a cylinder, a limiting rod, a movable seat, a spring, and a connecting lug. The cylinder is installed on the inner wall of the drying chamber. The limiting rod is installed in the middle of the inner wall of the cylinder. The movable seat is sleeved on the limiting rod and can move along the limiting rod. The spring is sleeved on the limiting rod, and its two ends are respectively connected to the cylinder and the movable seat. The connecting lug is installed on the telescopic end of the movable seat and moves synchronously with the movable seat. The upper side of the connecting lug is connected to the lower side of the ventilation plate.

[0006] In a preferred embodiment of the electric heating drying oven described in this utility model, in order to achieve the insertion and positioning between the column, the mounting ring and the mounting plate, positioning grooves are provided on the outer sides of the column, the mounting ring and the mounting plate, and the width of the positioning grooves is adapted to the width of the positioning plate.

[0007] The adjustment mechanism includes an adjustment seat, a hinge seat, and a connecting plate. The adjustment seat is inserted into the upper side of the mounting plate and can move inside the mounting plate. Two adjustment seats at the same height are connected by a connecting plate. Hinges are installed on the inner side of the transmission seat and the outer side of the adjustment seat. The connecting plate is sleeved on the two hinge seats. When the transmission seat moves vertically, it can drive the transmission seat to move horizontally along the T-shaped plate through the connecting plate and the two hinge seats.

[0008] In a preferred embodiment of the electric heating drying oven described in this utility model, in order to adjust the positioning state of the positioning insert, two movable openings are provided on the upper side of the mounting plate, and the width of the movable openings is adapted to the width of the connecting plate.

[0009] In a preferred embodiment of the electric heating drying oven described in this utility model, in order to achieve the insertion and positioning between the mounting plate and the adjusting seat, a spring positioning pin is provided on the outer side of the mounting plate on one of the two sides, and slots are provided on the outer sides of both the mounting plate and the adjusting seat.

[0010] The working principle and beneficial effects of this utility model are as follows: In this utility model, the positioning state between the column, the mounting ring and the mounting plate is adjusted through the cooperation between the transmission seat, the positioning plate and the adjustment mechanism. This allows the staff to quickly adjust the positioning state between the column, the mounting ring and the mounting plate according to the usage requirements. In turn, it enables the adjustment of the position of the rack installed on the mounting ring and the mounting plate. The distance between multiple racks can be quickly adjusted without the need for tools, which speeds up the adjustment of the distance between multiple racks and improves work efficiency. In this invention, the automatic pull-out and automatic return of the placement rack are achieved through the cooperation of the ventilation plate, the automatic return mechanism, the column, the mounting ring and the mounting plate. This allows the staff to pull out the placement rack before adjusting the spacing between multiple placement racks, making the operation more convenient. The automatic return mechanism can quickly drive the placement rack to return to its original position, improving the convenience of the device. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a vertical sectional view of the internal structure of the drying oven in this utility model; Figure 3 This is a vertical sectional view of the internal structure of the middle cylinder of this utility model; Figure 4 This is a vertical sectional view of the internal structure of the mounting ring and mounting plate in this utility model.

[0013] In the diagram: 1. Drying oven; 2. Ventilation panel; 3. Column; 4. Mounting ring; 5. Mounting plate; 6. Placement rack; 7. T-shaped plate; 8. Transmission seat; 9. Positioning insert plate; 10. Spring positioning pin; 11. Opening door; 12. Handle; 101. Cylinder body; 102. Limiting rod; 103. Movable seat; 104. Spring; 105. Connecting lug; 201. Adjustment seat; 202. Hinge seat; 203. Connecting plate. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0015] like Figures 1-4 As shown, this embodiment proposes an electric heating blower drying oven, including a drying oven 1, and also includes a ventilation plate 2, an automatic return mechanism, a column 3, a mounting ring 4, a mounting plate 5, a placement rack 6, a T-shaped plate 7, a transmission seat 8, a positioning insert 9, and an adjustment mechanism; In this embodiment, the positioning state between the transmission seat 8, the positioning plate 9, and the adjustment mechanism is adjusted through the cooperation between the column 3, the mounting ring 4, and the mounting plate 5. This allows the staff to quickly adjust the positioning state between the column 3, the mounting ring 4, and the mounting plate 5 according to the usage requirements. In turn, the position of the placement rack 6 installed on the mounting ring 4 and the mounting plate 5 can be adjusted. The distance between multiple placement racks 6 can be quickly adjusted without the need for tools, which speeds up the adjustment of the distance between multiple placement racks 6 and improves work efficiency. In this embodiment, the automatic pull-out and automatic return mechanism of the placement rack 6 are realized through the cooperation between the ventilation plate 2, the automatic return mechanism, the column 3, the mounting ring 4 and the mounting plate 5. This allows the staff to pull out the placement rack 6 before adjusting the spacing between multiple placement racks 6, which is convenient for the staff to operate. The automatic return mechanism can quickly drive the placement rack 6 to return to its original position, which improves the convenience of the device.

[0016] like Figure 1 As shown, the drying oven 1 is connected to an opening and closing door 11 via a connecting seat. A handle 12 is installed on the opening and closing door 11, which allows the staff to quickly open or close the opening and closing door 11, making it convenient for the staff to place or retrieve materials. like Figure 2 As shown, the ventilation plate 2 is movably mounted inside the drying chamber 1 via two square plates and can move along the square plates. Two sets of automatic return mechanisms are provided on both sides of the inner wall of the drying chamber 1. The ventilation plate 2 can automatically return to its original position under the action of these mechanisms. Figure 3As shown, the automatic return mechanism includes a cylinder 101, a limiting rod 102, a movable seat 103, a spring 104, and a connecting ear 105. The cylinder 101 is installed on the inner wall of the drying chamber 1. The limiting rod 102 is installed in the middle of the inner wall of the cylinder 101. The movable seat 103 is sleeved on the limiting rod 102 and can move along the limiting rod 102. The spring 104 is sleeved on the limiting rod 102. The two ends of the spring 104 are connected to the cylinder 101 and the movable seat 103 respectively. The connecting ear 105 is installed on the telescopic end of the movable seat 103 and moves synchronously with the movable seat 103. The upper side of the connecting ear 105 is connected to the lower side of the ventilation plate 2. like Figure 2 and Figure 4 As shown, multiple columns 3 are installed on the upper side of the ventilation plate 2. Multiple mounting rings 4 are sleeved on the columns 3. The mounting rings 4 can move vertically along the columns 3. Multiple mounting plates 5 are respectively installed between two corresponding mounting rings 4 and move synchronously with the mounting rings 4. Multiple placement racks 6 are installed between corresponding mounting rings 4 and mounting plates 5 and move synchronously with the mounting rings 4 and mounting plates 5. T-shaped plates 7 are installed on both sides of the inner bottom wall of the mounting plate 5. Transmission seats 8 are sleeved on the T-shaped plates 7. The transmission seats 8 can move along the T-shaped plates 7. When movement occurs, the positioning insert 9 is installed on the outside of the transmission seat 8 and moves synchronously with the transmission seat 8. Positioning grooves are provided on the outer sides of the column 3, mounting ring 4, and mounting plate 5. The width of the positioning grooves matches the width of the positioning insert 9. The positioning insert 9 can be inserted into the column 3, mounting ring 4, and mounting plate 5 through the positioning grooves, thereby achieving insertion and positioning between the column 3, mounting ring 4, and mounting plate 5. An adjustment mechanism is set on the mounting plate 5 on one of the two sides and is used to adjust the positioning state of the positioning insert 9. The structure includes an adjusting seat 201, a hinge seat 202, and a connecting plate 203. The adjusting seat 201 is inserted into the upper side of the mounting plate 5 and can move inside the mounting plate 5. Two adjusting seats 201 at the same height are connected by a connecting plate. Hinges 202 are installed on the inner side of the transmission seat 8 and the outer side of the adjusting seat 201. The connecting plate 203 is sleeved on the two hinge seats 202. When the transmission seat 8 moves vertically, it can move horizontally along the T-shaped plate 7 through the connecting plate 203 and the two hinge seats 202. The mounting plate 5 has two movable openings on its upper side. The width of the movable openings is adapted to the width of the connecting plate 203. When the positioning state of the positioning insert 9 is adjusted, the connecting plate 203 moves inside the movable openings. A spring positioning pin 10 is provided on the outer side of the mounting plate 5 on one of the two sides. Slots are provided on the outer sides of both the mounting plate 5 and the adjusting seat 201. The spring positioning pin 10 is inserted into the adjusting seat 201 and the mounting plate 5 through the slots, thereby realizing the insertion and positioning between the adjusting seat 201 and the mounting plate 5.

[0017] Working principle: This device is installed and used inside a laboratory. Before use, the staff adjusts the spacing between the multiple racks 6 according to the size and shape of the materials to be dried. The staff opens the door 11 using the handle 12. After opening, the staff pulls the ventilation plate 2 to move it outward along the square plate of the drying chamber 1. The ventilation plate 2 moves the moving seat 103 into the cylinder 101 via the connecting lug 105. The moving seat 103 compresses the spring 104, and the ventilation plate 2 moves the column 3 synchronously. The column 3 moves outward through the mounting ring 4 and mounting plate 5. The mounting ring 4 and mounting plate 5 move the racks 6 synchronously. After moving to the corresponding position, the staff pulls the spring positioning pin 10 to release the positioning pin between the mounting plate 5 and the adjusting seat 201. After release, the staff pulls the adjusting seat 201 upward. During the movement, the adjusting seat 201 moves the transmission seat 8 inward along the T-shaped plate 7 via the hinge seat 202 and connecting plate 203. The transmission seat 8 moves the positioning insert 9 inward, releasing the positioning pin. After the insertion plate 9 is removed from the insertion and positioning between the column 3, the mounting ring 4, and the mounting plate 5, the operator adjusts the position of the mounting ring 4 on the column 3. The mounting ring 4 drives the placement rack 6 to move synchronously through the mounting plate 5, thereby adjusting the spacing between multiple placement racks 6. After adjustment, the operator pushes the adjusting seat 201 downward. During the movement of the adjusting seat 201, the transmission seat 8 moves outward along the T-shaped plate 7 through the hinge seat 202 and the connecting plate 203. The transmission seat 8 drives the positioning insertion plate 9 to be inserted into the inside of the column 3, the mounting ring 4, and the mounting plate 5. Then, the operator positions the mounting plate 5 and the adjusting seat 201 through the spring positioning pin 10, thereby achieving the positioning of multiple placement racks 6 after the spacing adjustment. After adjustment, the operator places the material to be dried on the corresponding placement rack 6. After placement, the operator closes the opening and closing door 11 through the handle 12. After closing, the drying chamber 1 is started to dry the material placed on the placement rack 6. After drying, the operator opens the opening and closing door 11 to take out the material.

[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electrically heated forced-air drying oven, comprising a drying oven (1), characterized in that, Also includes: Ventilation plate (2), the ventilation plate (2) is movably disposed inside the drying oven (1) by means of two square plates and can move along the square plates; Automatic return mechanism: Two sets of automatic return mechanisms are provided on both sides of the inner wall of the drying box (1), and the ventilation plate (2) can automatically return to its original position under the drive of the automatic return mechanism; The column (3) is installed on the upper side of the ventilation plate (2). Multiple columns (3) are fitted on the column (3). Multiple mounting rings (4) are fitted on the column (3). The mounting rings (4) can move vertically along the column (3). Mounting plates (5), a plurality of the mounting plates (5) are respectively installed between two corresponding mounting rings (4) and move synchronously with the mounting rings (4); Placement racks (6), a plurality of said placement racks (6) are installed between corresponding mounting rings (4) and mounting plates (5) and move synchronously with said mounting rings (4) and mounting plates (5); T-shaped plate (7), both sides of the inner bottom wall of the mounting plate (5) are equipped with T-shaped plate (7), and a transmission seat (8) is sleeved on the T-shaped plate (7), and the transmission seat (8) can move along the T-shaped plate (7); Positioning plate (9), which is installed on the outside of the transmission seat (8) and moves synchronously with the transmission seat (8); An adjustment mechanism is provided on the mounting plate (5) on one of the two sides for adjusting the positioning state of the positioning insert (9).

2. The electric heating forced-air drying oven according to claim 1, characterized in that, The automatic return mechanism includes: A cylindrical body (101) is installed on the inner wall of the drying oven (1); A limiting rod (102) is installed in the middle of the inner wall of the cylinder (101); A movable seat (103) is sleeved on the limiting rod (102) and is movable along the limiting rod (102); A spring (104) is sleeved on the limiting rod (102), and the two ends of the spring (104) are respectively connected to the cylinder (101) and the movable seat (103); Connecting ear (105) is installed on the telescopic end of the movable seat (103) and moves synchronously with the movable seat (103). The upper side of the connecting ear (105) is connected to the lower side of the ventilation plate (2).

3. The electric heating forced-air drying oven according to claim 1, characterized in that, The outer sides of the column (3), the mounting ring (4) and the mounting plate (5) are all provided with positioning grooves, and the width of the positioning grooves is adapted to the width of the positioning insert (9).

4. An electric heating forced-air drying oven according to claim 1, characterized in that, The adjustment mechanism includes: Adjustment seat (201), the adjustment seat (201) is inserted into the upper side of the mounting plate (5) and can move inside the mounting plate (5), and two adjustment seats (201) at the same height are connected by a connecting plate; Hinged seat (202): The inner side of the transmission seat (8) and the outer side of the adjustment seat (201) are both equipped with hinged seats (202). The connecting plate (203) is sleeved on the two hinge seats (202). When the transmission seat (8) moves vertically, it can drive the transmission seat (8) to move horizontally along the T-shaped plate (7) through the connecting plate (203) and the two hinge seats (202).

5. An electric heating forced-air drying oven according to claim 4, characterized in that, The mounting plate (5) has two movable openings on its upper side, and the width of the movable openings is adapted to the width of the connecting plate (203).

6. An electric heating forced-air drying oven according to claim 4, characterized in that, A spring positioning pin (10) is provided on the outer side of the mounting plate (5) on one of the two sides, and slots are provided on the outer side of both the mounting plate (5) and the adjusting seat (201).

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