Hot air circulating oven

Abstract

The utility model provides a hot air circulating oven, which relates to the technical field of circulating ovens and comprises an oven body and a fan arranged at the top of the oven body, a heater is arranged at the top of an inner cavity of the oven body, a heat collecting component is arranged at the bottom of the heater and comprises a heat collecting plate mounted on the inner wall of the oven body, and a second supporting plate is fixedly connected to the middle of the heat collecting plate. A connecting rod is fixedly connected to the side, close to the box body, of the second supporting plate, a sleeve is arranged at one end of the connecting rod, the fan is arranged, so that flow division of the inner cavity of the box body can be promoted to circulate, the heater is arranged, air flow can be heated, and a flow guide groove is formed in the inner cavity of the box body; air flow moves along the inner cavity of the flow guide groove, so that materials placed in the middle of the inner cavity of the box body can be dried, waste heat scattered at dead corners of the inner cavity of the box body is gathered through the heat gathering plate while drying is conducted, and therefore the drying speed of the materials can be increased.

Description

Technical Field

[0001] This utility model relates to the field of circulating oven technology, and in particular to a hot air circulating oven. Background Technology

[0002] Hot air circulating ovens are commonly used in many industries such as food, pharmaceuticals, chemicals, and electronics. They use fans to circulate hot air, which can quickly and evenly dry and heat materials, effectively remove moisture, ensure stable product quality, and improve production efficiency. They are also suitable for processes such as drying, dehydration, curing, preheating, and tempering of products. They have a wide range of applications and play a crucial role.

[0003] In practical applications, existing drying ovens, using heating components and circulating fans in combination, can meet the basic requirements of drying work, but the following problems still exist:

[0004] Common drying ovens often rely on the basic characteristic of natural upward heat flow to achieve heat transfer and material drying. Because hot air naturally rises, the material at the bottom of the oven cannot obtain enough heat quickly and efficiently, which leads to a significant lag in the drying speed and greatly reduces work efficiency. Therefore, this application provides a hot air circulation drying oven to meet the needs. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a hot air circulating oven.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hot air circulating oven, comprising a box body and a fan disposed on the top of the box body, and a heater disposed on the top of the inner cavity of the box body;

[0007] A heat-gathering assembly is placed at the bottom of the heater. The heat-gathering assembly includes a heat-gathering plate installed on the inner wall of the box. A second support plate is fixedly connected to the middle of the heat-gathering plate. A connecting rod is fixedly connected to the side of the second support plate near the box. A sleeve is provided at one end of the connecting rod. A second fixing rod is fixedly connected to the end of the sleeve away from the connecting rod.

[0008] A drive assembly is located on top of a connecting rod. The drive assembly includes a heat-conducting block disposed within the inner cavity of the housing. A double metal plate is disposed on the side of the heat-conducting block near the connecting rod, and a turntable is disposed on the end of the double metal plate away from the heat-conducting block.

[0009] Furthermore, a slider is fixedly connected to the side of the connecting rod, a second groove is provided on the outer surface of the sleeve, one end of the slider extends into the inner cavity of the second groove, and one end of the slider is slidably connected to the inner cavity of the second groove.

[0010] The technical effect of adopting the above technical solution is that the connecting rod can be made to move in translation by the cooperation of the slider and the second groove.

[0011] Furthermore, a fixing block is fixedly connected to the side of the second fixing rod away from the sleeve, and an installation block is fixedly connected to the inner cavity of the second fixing rod.

[0012] The technical effect of adopting the above technical solution is that by setting a fixed block, the movement trajectory of the second fixed rod can be limited.

[0013] Furthermore, a lever is fixedly connected to the center of the inner cavity of the turntable, a half gear is provided on the side of the turntable away from the heat-conducting block, and a touch rod is fixedly connected to the side of the half gear near the turntable.

[0014] The technical effect of adopting the above technical solution is that, through the cooperation of the toggle block and the touch rod, the half gear can be made to rotate intermittently.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] By installing a fan, the airflow within the chamber can be circulated. A heater heats the airflow. The chamber's interior has guide channels; during use, the airflow moves along these channels, drying the material placed in the center of the chamber. Simultaneously, residual heat scattered in the dead corners of the chamber is concentrated by heat-gathering plates, accelerating the drying process. The heat-gathering plates are connected in the middle by telescopic components. When the material temperature rises to a certain level, the high temperature is transferred through the inner wall of the chamber to the heat-conducting blocks, causing the double metal plates to expand. This, in turn, drives the motor located on the side of the turntable. Through the interaction of the turntable and a half-gear, the sleeve rotates counterclockwise, moving the connecting rod closer to the second fixed rod. When the connecting rod reaches a certain position, the heat-gathering plates contract, reducing heat concentration on the material and effectively preventing over-drying and cracking. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a hot air circulating oven provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal cross-sectional structure of a hot air circulating oven provided by this utility model;

[0019] Figure 3 A cross-sectional view of a hot air circulating oven drive assembly provided by this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of a heat-gathering component for a hot air circulating oven provided by this utility model.

[0021] Legend:

[0022] 1. Housing; 11. Fan; 12. Heater;

[0023] 2. Drive assembly; 21. Heat-conducting block; 22. Double metal plate; 23. Turntable; 24. Pulley; 25. Half gear; 26. Contact rod; 27. First support plate; 28. First groove; 29. ​​First fixing rod; 210. Spring;

[0024] 3. Heat-concentrating component; 31. Heat-concentrating plate; 32. Second support plate; 33. Connecting rod; 34. Slider; 35. Sleeve; 36. Second groove; 37. Second fixing rod; 38. Fixing block; 39. Mounting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a hot air circulating oven, a box body 1 and a fan 11 disposed on the top of the box body 1, and a heater 12 disposed on the top of the inner cavity of the box body 1;

[0027] The heat-concentrating component 3 is placed at the bottom of the heater 12. The heat-concentrating component 3 includes a heat-concentrating plate 31 installed on the inner wall of the housing 1. A second support plate 32 is fixedly connected to the middle of the heat-concentrating plate 31. A connecting rod 33 is fixedly connected to the side of the second support plate 32 near the housing 1. A sleeve 35 is provided at one end of the connecting rod 33. A second fixing rod 37 is fixedly connected to the end of the sleeve 35 away from the connecting rod 33.

[0028] Drive assembly 2 is located on top of connecting rod 33. Drive assembly 2 includes a heat-conducting block 21 disposed in the inner cavity of housing 1. A double metal plate 22 is disposed on the side of heat-conducting block 21 near connecting rod 33. A turntable 23 is disposed on the end of double metal plate 22 away from heat-conducting block 21. A slider 34 is fixedly connected to the side of connecting rod 33. A second groove 36 is formed on the outer surface of sleeve 35. One end of slider 34 extends into the inner cavity of second groove 36 and is slidably connected to the inner cavity of second groove 36. A fixing block 38 is fixedly connected to the side of the second fixing rod 37 away from the sleeve 35. An installation block 39 is fixedly connected to the inner cavity of the second fixing rod 37. By setting a fan 11, the airflow inside the box 1 can be circulated. By setting a heater 12, the airflow can be heated. A guide groove is opened in the inner cavity of the box 1. During use, the airflow moves along the inner cavity of the guide groove, thereby drying the material placed in the middle of the inner cavity of the box 1. At the same time, the material scattered in the inner cavity of the box 1 is dried. The residual heat from the corner is concentrated by the heat-concentrating plate 31, thereby accelerating the drying speed of the material. The middle of the heat-concentrating plate 31 is connected by a telescopic component. When the material temperature rises to a certain level, the high temperature is transferred to the heat-conducting block 21 through the inner wall of the box 1, which causes the double metal pieces 22 to expand, thereby causing the motor set on the side of the turntable 23 to run. Through the cooperation of the turntable 23 and the half gear 25, the sleeve 35 can be rotated counterclockwise. When the sleeve 35 rotates counterclockwise, through the cooperation of the second groove 36 and the slider 34, the connecting rod 33 can be moved closer to the end of the second fixed rod 37. When the connecting rod 33 moves to a certain position, the outer surface of the heat-concentrating plate 31 contracts, thereby reducing the heat concentration on the material and effectively avoiding over-drying of the material, which could lead to cracking. By setting the mounting block 39, the stable transmission between the first fixed rod 29 and the second fixed rod 37 can be ensured. By setting the fixing block 38, the sleeve 35 can be moved intermittently.

[0029] Furthermore, such as Figure 3 and Figure 4As shown: A lever 24 is fixedly connected to the center of the inner cavity of the turntable 23. A half gear 25 is provided on the side of the turntable 23 away from the heat-conducting block 21. A contact rod 26 is fixedly connected to the side of the half gear 25 near the turntable 23. A first support plate 27 is fixedly connected to the end of the half gear 25 away from the contact rod 26. A first groove 28 is provided on the side of the first support plate 27. A first fixing rod 29 is provided at the bottom of the first support plate 27. By setting the heat-conducting block 21, heat can be conducted to the inner wall of the housing 1. By setting the double metal pieces 22, the motor set on the side of the turntable 23 can be triggered when the temperature is high. When the output shaft of the motor rotates clockwise, the lever 24 can be driven to move counterclockwise through the turntable 23. When the lever 24 moves to a certain position... The side of the lever 24 contacts the side of the contact rod 26, thereby causing the half gear 25 to rotate clockwise along the side of the turntable 23. This enables the first support plate 27 to drive the first groove 28 to move clockwise. When the first support plate 27 moves to a certain position, the side of the first support plate 27 contacts the side of the first fixed rod 29, thereby causing the first fixed rod 29 to rotate clockwise. At this time, one end of the fixed block 38 enters the inner cavity of the first groove 28, and the first fixed rod 29 continues to move, thereby enabling the sleeve 35 to move intermittently. This causes the heat-collecting plate 31 to slowly reset, preventing the heat-collecting plate 31 from suddenly contracting, which would cause the internal heat flow to not have time to adapt, resulting in turbulence and affecting the drying effect.

[0030] Since the first fixing rod 29 is triggered by being moved through the first groove 28, a slight displacement of the position of the first fixing rod 29 is inevitable during long-term operation. Figure 4 As shown: In this scheme, a spring piece 210 is fixedly connected to the inner cavity of the first fixing rod 29. One end of the spring piece 210 is fixedly connected to the side of the mounting block 39. When the first fixing rod 29 moves clockwise, the spring piece 210 is compressed, thereby storing stress. When the second fixing rod 37 moves to a certain position, the spring piece 210 releases the stress, thereby causing the first fixing rod 29 to reset and preventing the position of the first fixing rod 29 from shifting.

[0031] Working principle:

[0032] like Figure 1-4 As shown:

[0033] In use: By setting up the fan 11, the airflow inside the chamber 1 is circulated. By setting up the heater 12, the airflow is heated. The chamber 1 has a guide groove. During use, the airflow moves along the inner cavity of the guide groove, thereby drying the material placed in the middle of the chamber 1. During drying, the residual heat scattered in the dead corners of the chamber 1 is concentrated by the heat-collecting plate 31, thereby accelerating the drying speed of the material. When the material temperature rises to a certain level, the high temperature is transferred through the inner wall of the chamber 1 to the heat-conducting block 21, thereby causing the double metal plate 22 to expand, which in turn causes the motor set on the side of the turntable 23 to run. When the output shaft of the motor rotates clockwise, it drives the lever 24 to move counterclockwise through the turntable 23. When the lever 24 moves to a certain position, the side of the lever 24 contacts the side of the contact rod 26, thereby promoting the drying of the material. The half gear 25 rotates clockwise along the side of the turntable 23, thereby enabling the first support plate 27 to drive the first groove 28 to move clockwise. When the first support plate 27 moves to a certain position, the side of the first support plate 27 contacts the side of the first fixed rod 29, thereby causing the first fixed rod 29 to rotate clockwise. At this time, one end of the fixed block 38 enters the inner cavity of the first groove 28, and the first fixed rod 29 continues to move, thereby enabling the sleeve 35 to move intermittently. When the sleeve 35 rotates counterclockwise, the second groove 36 and the slider 34 cooperate to cause the connecting rod 33 to move towards the end closer to the second fixed rod 37. When the connecting rod 33 moves to a certain position, the outer surface of the heat-gathering plate 31 contracts, thereby reducing the heat gathering effect on the material and effectively avoiding over-drying of the material, which could lead to cracking.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A hot air circulating oven, characterized in that, include: The box (1) and the fan (11) installed on the top of the box (1) are provided with a heater (12) on the top of the inner cavity of the box (1). A heat-concentrating component (3) is placed at the bottom of the heater (12). The heat-concentrating component (3) includes a heat-concentrating plate (31) installed on the inner wall of the housing (1). A second support plate (32) is fixedly connected to the middle of the heat-concentrating plate (31). A connecting rod (33) is fixedly connected to the side of the second support plate (32) near the housing (1). A sleeve (35) is provided at one end of the connecting rod (33). A second fixing rod (37) is fixedly connected to the end of the sleeve (35) away from the connecting rod (33). The drive assembly (2) is located on the top of the connecting rod (33). The drive assembly (2) includes a heat-conducting block (21) disposed in the inner cavity of the housing (1). A double metal plate (22) is disposed on the side of the heat-conducting block (21) near the connecting rod (33), and a turntable (23) is disposed on the end of the double metal plate (22) away from the heat-conducting block (21).

2. The hot air circulating oven according to claim 1, characterized in that, A slider (34) is fixedly connected to the side of the connecting rod (33), and a second groove (36) is provided on the outer surface of the sleeve (35). One end of the slider (34) extends into the inner cavity of the second groove (36), and one end of the slider (34) is slidably connected to the inner cavity of the second groove (36).

3. A hot air circulating oven according to claim 1, characterized in that, A fixing block (38) is fixedly connected to the side of the second fixing rod (37) away from the sleeve (35), and an installation block (39) is fixedly connected to the inner cavity of the second fixing rod (37).

4. A hot air circulating oven according to claim 1, characterized in that, A lever (24) is fixedly connected to the middle of the inner cavity of the turntable (23). A half gear (25) is provided on the side of the turntable (23) away from the heat-conducting block (21). A touch rod (26) is fixedly connected to the side of the half gear (25) close to the turntable (23).

5. A hot air circulating oven according to claim 4, characterized in that, The first support plate (27) is fixedly connected to the end of the half gear (25) away from the contact rod (26).

6. A hot air circulating oven according to claim 5, characterized in that, The first support plate (27) has a first groove (28) on its side and a first fixing rod (29) on its bottom.

7. A hot air circulating oven according to claim 6, characterized in that, The inner cavity of the first fixing rod (29) is fixedly connected to a spring piece (210), and one end of the spring piece (210) is fixedly connected to the side of the mounting block (39).

Images