Natural convection oven

Abstract

The utility model discloses a natural convection drying oven which comprises a drying oven body, a drying cavity is formed in the drying oven body, a first inner net plate and a second inner net plate are arranged on the side face of the drying cavity, a heating pipe is arranged at the bottom of the drying cavity, and the heating pipe is isolated from an upper-layer drying area through a partition plate; the two dry-hanging plates comprise base plates and clamping piece sets, the clamping piece sets are connected to the second mesh holes of the second inner mesh plate in a clamped mode, and layer plates are placed between the dry-hanging plates; the convection structure is communicated with the first mesh holes of the first inner mesh plate and the second mesh holes of the second inner mesh plate, and the external environment is communicated with the drying cavity; and a box door. The drying oven can meet the drying requirements of objects of different sizes and types, space utilization of the drying oven is improved, and the drying efficiency is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of ovens, in particular to a natural convection oven. Background Art

[0002] The shelves used for placing objects to be dried in common natural convection ovens are mostly fixed, and cannot adapt to the placement and drying needs of objects of different and larger span sizes. Some shelves are adjustable in design, which makes the adjustment operation inconvenient, occupies a large space in the oven, and the heating device is easily corroded by environmental moisture and impurities, making the oven drying efficiency unstable and poor. Utility Model Content

[0003] The purpose of the utility model is to provide a natural convection oven to solve the problems that common natural convection ovens cannot adapt to the needs of placing and drying objects of different and larger span sizes, some of the layers are adjustable, the adjustment operation is inconvenient, the space inside the oven is large, and the heating device is easily corroded by environmental moisture and impurities, resulting in unstable and poor drying efficiency of the oven.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a natural convection oven, comprising:

[0005] The oven box has a drying cavity therein, a first inner mesh plate and a second inner mesh plate are arranged on the side of the drying cavity, a heating pipe is arranged at the bottom of the drying cavity and the heating pipe is isolated from the upper drying area by a partition;

[0006] Two dry hanging boards, including an L-shaped base plate and a clamping member group arranged outside the base plate, the clamping member group is clamped on the second mesh of the second inner mesh plate, and a layer board is placed between the dry hanging boards;

[0007] A convection structure is connected to the first mesh hole of the first inner mesh plate and the second mesh hole of the second inner mesh plate, so as to connect the external environment with the drying chamber;

[0008] The oven door has one side hinged on the oven body and the other side clamped on the oven body.

[0009] As a further description of the above technical solution:

[0010] Baffles are arranged at both ends of the base plate, two opposite hooks are arranged at the upper and lower ends of the clamping assembly, the distance between the two hooks increases from the inside to the outside to form an open shape, and two opposite, open-shaped limiting plates are arranged at the front and rear ends of the clamping assembly.

[0011] As a further description of the above technical solution:

[0012] The convection structure comprises a first convection port and a second convection port located on the side of the oven body and a convection pipe penetrating through the top of the oven body and communicating with the outside.

[0013] As a further description of the above technical solution:

[0014] A handle is hinged on the oven door, a locking block is extended outwardly from the side of the handle, and the locking block is clamped on the lock buckle on the front side of the oven body.

[0015] As a further description of the above technical solution:

[0016] The oven body is also provided with an alarm device and an operation panel.

[0017] As a further description of the above technical solution:

[0018] A support is arranged at the bottom of the oven body, and the support comprises an adjusting rod and a chassis fixed at the bottom of the adjusting rod. The adjusting rod penetrates into the oven body and is screwed and positioned by bolts cooperating with external threads on the adjusting rod.

[0019] As a further description of the above technical solution:

[0020] Moving wheels are also arranged at the bottom of the oven body.

[0021] In summary, due to the adoption of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] Beneficial effects:

[0023] 1. The dry hanging board can be detachably installed in the drying chamber, so that the position of the inner layer of the drying chamber can be adjusted, thereby adapting to the drying needs of objects of different sizes and types, and improving the space utilization and drying efficiency of the oven. The dry hanging board is easy to disassemble and assemble through the coordination of the limit plate, the hook, and the second mesh hole, and the mesh dry hanging board is fixed and air convection is used, which reduces the space occupied in the oven.

[0024] 2. A heating pipe is set at the bottom of the drying chamber and separated from the upper drying area by a partition to prevent corrosion of the heating pipe by water vapor and impurities in the drying chamber and increase its service life. This oven can be switched between mobile and fixed states, is easy to operate, and can provide reminders and alarms for abnormal use of the oven. With natural convection and sufficient airflow distribution in the oven, the drying effect is stable and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a natural convection oven.

[0027] Figure 2 This is a front view of a natural convection oven with the oven door hidden.

[0028] Figure 3 It is a partial cross-sectional view from the left side of a natural convection oven.

[0029] Figure 4 It is a structural schematic diagram of a dry hanging board in a natural convection oven.

[0030] Figure 5 A top view of a natural convection oven.

[0031] Figure 6 A right side view of a natural convection oven.

[0032] Legend:

[0033] 1. Oven body; 2. Drying cavity; 3. First inner mesh plate; 31. First mesh hole; 4. Second inner mesh plate; 41. Second mesh hole; 5. Dry hanging plate; 51. Base plate; 52. Baffle plate; 53. Clamp group; 54. Limit plate; 55. Hook; 6. Shelf plate; 7. First convection port; 8. Second convection port; 9. Convection pipe; 10. Heating pipe; 11. Partition plate; 12. Door; 13. Handle; 14. Locking block; 15. Lock buckle; 16. Alarm device; 17. Operation panel; 18. Support; 181. Adjustment rod; 182. Chassis; 183. Bolt; 19. Moving wheel. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] See also Figure 1-6 The utility model provides a technical solution: a natural convection oven, comprising:

[0037] The oven box 1 is provided with a drying chamber 2, a first inner mesh plate 3 and a second inner mesh plate 4 are provided on the side of the drying chamber 2, a heating tube 10 is provided at the bottom of the drying chamber 2, and the heating tube 10 is isolated from the upper drying area by a partition plate 11, so as to prevent the corrosion of the heating tube 10 by water vapor and impurities in the drying chamber 2, thereby improving its service life;

[0038] Two hanging boards 5 include an L-shaped base plate 51 and a clamping member group 53 arranged outside the base plate 51, the clamping member group 53 is clamped on the second mesh 41 of the second inner mesh plate 4, and a layer plate 6 is placed between the hanging boards 5. The hanging boards 5 are detachably arranged in the drying chamber 2, so that the position of the layer plate 6 in the drying chamber 2 can be adjusted, thereby meeting the drying requirements of objects of different sizes and types, and improving the space utilization and drying efficiency of the oven;

[0039] The convection structure is connected with the first mesh 31 of the first inner mesh plate 3 and the second mesh 41 of the second inner mesh plate 4, so as to connect the external environment with the drying chamber 2, thereby ensuring sufficient natural convection distribution in the oven, thereby improving the drying efficiency of the oven;

[0040] The oven door 12 is hinged on the oven body 1 at one side and is clamped on the oven body 1 at the other side.

[0041] Baffles 52 are provided at both ends of the base plate 51, and two opposite hooks 55 are provided at the upper and lower ends of the clamping member group 53. The distance between the two hooks 55 increases from the inside to the outside to form an open shape. Two opposite, open-shaped limiting plates 54 are provided at the front and rear ends of the clamping member group 53, so that the clamping and fixing of the dry hanging plate 5 is more convenient and stable.

[0042] The convection structure includes a first convection port 7 and a second convection port 8 located on the side of the oven body 1 and a convection pipe 9 penetrating through the top of the oven body 1 and communicating with the outside, so as to improve the natural convection efficiency.

[0043] A handle 13 is hinged on the oven door 12 , and a locking block 14 extends outward from the side of the handle 13 . The locking block 14 is clamped on a lock buckle 15 on the front side of the oven body 1 .

[0044] The oven body 1 is also provided with an alarm device 16 and an operation panel 17 .

[0045] A support 18 is provided at the bottom of the oven body 1. The support 18 includes an adjusting rod 181 and a chassis 182 fixed at the bottom of the adjusting rod 181. The adjusting rod 181 penetrates the oven body 1 and is screwed and positioned by a bolt 183 cooperating with an external thread on the adjusting rod 181. In addition, a moving wheel 19 is also provided at the bottom of the oven body 1. In this embodiment, the oven has two states, mobile and fixed, which makes it more convenient to move and transport.

[0046] The working principle of a natural convection oven of this embodiment includes: when in use, firstly arrange the dry hanging parts 5 on the inner mesh plate based on the objects to be dried, guide and align the dry hanging plate 5 with the second inner mesh plate 4 through the limit plate 54, then press the dry hanging plate 5 toward the second inner mesh plate 4 so that the hook 55 is pressed into the second mesh hole 41 to fix the dry hanging plate 5, and then arrange the layer plate 6 between the dry hanging plates 5, and then place the workpiece to be dried. After the workpiece is placed, close the door 12, rotate the handle 13, so that the locking block 14 is engaged with the lock buckle 15, and the door 12 is locked, and then the heating tube 10 can be started to heat the drying cavity 2, and the natural convection between the mesh hole, the convection port, and the convection tube drives the evaporated water vapor in the drying cavity 2 to flow out of the oven, thereby realizing the natural convection drying of the workpiece. Abnormal conditions such as the oven temperature being too high can be reflected and reminded through the alarm device 16. The oven is lifted by an oven lifting device such as a jack, and the extension amount of the adjusting rod 181 in the oven body 1 is adjusted, and then fixed by bolts 183. When the bottom of the chassis 182 is lower than the bottom of the moving wheel 19, the oven is fixed, otherwise, the oven can be moved.

[0047] 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. A natural convection oven, characterized in that: include: The oven box has a drying cavity therein, a first inner mesh plate and a second inner mesh plate are arranged on the side of the drying cavity, a heating pipe is arranged at the bottom of the drying cavity and the heating pipe is isolated from the upper drying area by a partition; Two dry hanging boards, including an L-shaped base plate and a clamping member group arranged outside the base plate, the clamping member group is clamped on the second mesh of the second inner mesh plate, and a layer board is placed between the dry hanging boards; A convection structure is connected to the first mesh hole of the first inner mesh plate and the second mesh hole of the second inner mesh plate, so as to connect the external environment with the drying chamber; The oven door has one side hinged on the oven body and the other side clamped on the oven body.

2. A natural convection oven according to claim 1, characterized in that: Baffles are arranged at both ends of the base plate, two opposite hooks are arranged at the upper and lower ends of the clamping member group, the distance between the two hooks increases from the inside to the outside to form an open shape, and two opposite, open-shaped limiting plates are arranged at the front and rear ends of the clamping member group.

3. A natural convection oven according to claim 1, characterized in that: The convection structure comprises a first convection port and a second convection port located on the side of the oven body, and a convection pipe penetrating through the top of the oven body and communicating with the outside.

4. A natural convection oven according to claim 1, characterized in that: A handle is hinged on the oven door, a locking block is extended outwardly from the side of the handle, and the locking block is clamped on the lock buckle on the front side of the oven body.

5. A natural convection oven according to claim 1, characterized in that: The oven body is also provided with an alarm device and an operation panel.

6. A natural convection oven according to claim 1, characterized in that: A support is arranged at the bottom of the oven body, and the support comprises an adjusting rod and a chassis fixed at the bottom of the adjusting rod. The adjusting rod penetrates into the oven body and is screwed and positioned by bolts cooperating with external threads on the adjusting rod.

7. A natural convection oven according to claim 1, characterized in that: The bottom of the oven body is also provided with moving wheels.

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