Airflow circulating device for rice drying

Abstract

The utility model belongs to the field of airflow circulating devices, and particularly relates to an airflow circulating device for drying rice, which comprises a circulating box, a heating pipe is fixedly connected to the upper end of the circulating box, an electric heating pipe is arranged in the heating pipe, and a non-woven fabric filter frame is fixedly connected to the upper portion of the inner wall of the circulating box. And a cleaning mechanism is arranged on the circulating box, a screw rod is installed in the circulating box through a bearing, and the outer side of the screw rod is connected with a threaded frame through threads. The non-woven fabric filter frame, the sponge roller, the moving frame and other structures are additionally arranged in the circulating box, dust and sundries in airflow can be filtered out through the non-woven fabric filter frame in the airflow circulating process in the circulating box, and therefore a large amount of dust can be prevented from being adsorbed to the outer side of the electric heating pipe; in addition, the non-woven fabric filtering frame can be cleaned through the rotating sponge roller, and the airflow flow can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of airflow circulation devices, in particular to an airflow circulation device used for drying rice. Background Art

[0002] In the process of rice processing, in order to extend the storage time of rice, it is necessary to dry the rice. According to the patent authorization announcement number: CN207487279U, a rice dryer air circulation device is proposed. The utility model discloses an air circulation device for a rice dryer, including a drying box, an exhaust fan, a heat pump, and a hot air box located in the dryer. The exhaust fan is connected to the top of the drying box, and the hot air box is connected to the bottom of the drying box. The exhaust fan, the heat pump and the hot air box are connected in sequence to convert humid air into hot air and store it in the hot air box; a spiral device is provided in the dryer below the drying box, and one axial end of the spiral device is connected to the hot air box, and one radial end is connected to the drying box. The hot air box is also provided with a blower that pushes the hot air to the spiral device. The air circulation device of the utility model does not require indoor and outdoor ventilation, so as to achieve the purpose of air circulation, and can provide spiral hot air in the drying box so that the hot air is fully in contact with the rice, thereby improving the drying speed of the rice.

[0003] However, when the circulation device in the prior art is used, a part of dust will remain inside after the airflow contacts the rice, and the dust will be adsorbed on the surface of the electric heating tube when it contacts the electric heating tube, affecting the efficiency of the electric heating tube in heating the airflow. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide an airflow circulation device for rice drying, which solves the problem that dust may affect the heating efficiency of electric heating pipes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air circulation device for drying rice, comprising a circulation box, a heating tube is fixedly connected to the upper end of the circulation box, an electric heating tube is arranged inside the heating tube, a non-woven filter frame is fixedly connected to the upper part of the inner wall of the circulation box, a cleaning mechanism is arranged on the circulation box, a screw is installed inside the circulation box through a bearing, a threaded frame is connected to the outer side of the screw through a thread, a movable frame is fixedly connected to the upper end of the threaded frame, a sponge roller is installed inside the movable frame through a bearing, a motor is fixedly installed on the right end of the circulation box, a gear 1 is fixedly connected to the outer side of the connecting shaft of the sponge roller, a gear 2 is installed at the lower end of the movable frame through a bearing, a rack is meshed at the lower end of the gear 2, and an air intake pipe is fixedly connected to both the left and right ends of the circulation box.

[0006] Preferably, the sponge roller is in contact with the non-woven fabric filter frame, the output shaft of the motor is fixedly connected to the screw, and the sponge roller can clean the non-woven fabric filter frame by rotating.

[0007] Preferably, the rack is fixedly connected to the inner wall of the circulation box, and the gear 2 is meshed with the gear 1. The gear 2 can drive the gear 1 to rotate in the direction opposite to the moving direction through the rack.

[0008] Preferably, a guide rod is fixedly connected to the middle part of the inner wall of the circulation box, and the guide rod is slidably connected to the movable frame, and the guide rod can guide the movement of the movable frame.

[0009] Preferably, the cleaning mechanism includes a cleaning door, the front side of the circulation box is hinged with the cleaning door, the front side of the circulation box is slidably connected with a connecting nail, the outer side of the connecting nail is provided with a spring, the outer side of the connecting nail is slidably connected with a limiting plate, the front side of the limiting plate contacts the limiting frame, the limiting frame is slidably connected to the circulation box and the cleaning door, and the limiting frame can limit the cleaning door.

[0010] Preferably, the limit plate is fixedly connected to the circulation box, one end of the spring is fixedly connected to the limit plate, and the other end of the spring one is fixedly connected to the connecting nail, and the spring one can drive the connecting nail to automatically reset through elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as a non-woven filter frame, a sponge roller and a movable frame inside the circulation box. During the airflow circulation inside the circulation box, the dust and debris inside the airflow can be filtered by the non-woven filter frame, thereby preventing a large amount of dust from being adsorbed on the outside of the electric heating tube, and the non-woven filter frame can be cleaned by the rotating sponge roller, which can effectively ensure the airflow rate.

[0013] 2. The utility model adds a cleaning door, a limit frame, a spring and other structures to the circulation box, and the cleaning door can be limited by the limit frame. When it is necessary to clean the inside of the circulation box, the limit frame can be separated from the cleaning door, and then the cleaning door can be opened to conveniently clean the inside of the circulation box, thereby making the device more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A cross-sectional view of a stereogram;

[0016] Figure 3 For the utility model Figure 2 A magnified view of the structure of part A;

[0017] Figure 4 For the utility model Figure 2 Enlarged view of the structure of part B.

[0018] In the figure: 1. circulation box; 2. heating tube; 3. electric heating tube; 4. non-woven filter frame; 5. cleaning mechanism; 6. screw; 7. threaded frame; 8. movable frame; 9. sponge roller; 10. motor; 11. gear one; 12. gear two; 13. rack; 14. guide rod; 15. air inlet pipe; 51. cleaning door; 52. connecting nail; 53. limit frame; 54. limit plate; 55. spring. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , an air circulation device for drying rice, comprising a circulation box 1, a heating tube 2 is fixedly connected to the upper end of the circulation box 1, an electric heating tube 3 is arranged inside the heating tube 2, a non-woven filter frame 4 is fixedly connected to the upper inner wall of the circulation box 1, a cleaning mechanism 5 is arranged on the circulation box 1, a screw 6 is installed inside the circulation box 1 through a bearing, a threaded frame 7 is connected to the outer side of the screw 6 through a thread, a moving frame 8 is fixedly connected to the upper end of the threaded frame 7, a sponge roller 9 is installed inside the moving frame 8 through a bearing, a motor 10 is fixedly installed at the right end of the circulation box 1, a gear 11 is fixedly connected to the outer side of the connecting shaft of the sponge roller 9, a gear 2 12 is installed at the lower end of the moving frame 8 through a bearing, a rack 13 is meshed at the lower end of the gear 2 12, and an air intake pipe 15 is fixedly connected to both left and right ends of the circulation box 1.

[0021] See also Figure 1 , Figure 2 , Figure 3The sponge roller 9 is in contact with the non-woven filter frame 4, the output shaft of the motor 10 is fixedly connected to the screw 6, the sponge roller 9 can clean the non-woven filter frame 4 by rotating, the rack 13 is fixedly connected to the inner wall of the circulation box 1, the gear 2 12 is meshed with the gear 1 11, the gear 2 12 can drive the gear 1 11 to rotate in the opposite direction of the moving direction through the rack 13, and a guide rod 14 is fixedly connected to the middle part of the inner wall of the circulation box 1, the guide rod 14 is slidably connected to the moving frame 8, and the guide rod 14 can guide the movement of the moving frame 8.

[0022] See also Figure 1 , Figure 2 , Figure 4 The cleaning mechanism 5 includes a cleaning door 51. The cleaning door 51 is hinged on the front of the circulation box 1. A connecting nail 52 is slidably connected inside the front of the circulation box 1. A spring 55 is arranged on the outside of the connecting nail 52. The outside of the connecting nail 52 is slidably connected to a limiting plate 54. The front of the limiting plate 54 contacts the limiting frame 53. The limiting frame 53 is slidably connected to the circulation box 1 and the cleaning door 51. The limiting frame 53 can limit the cleaning door 51. The limiting plate 54 is fixedly connected to the circulation box 1. One end of the spring 55 is fixedly connected to the limiting plate 54. The other end of the spring 55 is fixedly connected to the connecting nail 52. The spring 55 can drive the connecting nail 52 to automatically reset through elastic force.

[0023] The specific implementation process of the utility model is as follows: when in use, the airflow enters the interior of the circulation box 1 through the air inlet pipe 15, and then enters the interior of the heating tube 2 after being filtered by the non-woven filter frame 4 to be heated by the electric heating tube 3, and at the same time, the motor 10 is started, and the motor 10 drives the screw 6 to rotate. During the rotation process, the screw 6 can drive the moving frame 8 to move by cooperating with the thread before the threaded frame 7. During the movement process, the moving frame 8 drives the gear 2 12 to rotate through the rack 13, and the gear 2 12 drives the sponge roller 9 to rotate in the opposite direction of the moving direction through the gear 1 11, so as to clean the non-woven filter frame 4, thereby effectively ensuring the flow area of ​​the airflow;

[0024] After long-term use, the limiting frame 53 is pulled, and the limiting frame 53 compresses the spring 55 through the connecting nail 52. When the limiting frame 53 is separated from the cleaning door 51, the cleaning door 51 can be opened, and then the interior of the circulation box 1 can be conveniently cleaned.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air circulation device for drying rice, comprising a circulation box (1), characterized in that: The upper end of the circulation box (1) is fixedly connected to a heating tube (2), an electric heating tube (3) is arranged inside the heating tube (2), a non-woven filter frame (4) is fixedly connected to the upper part of the inner wall of the circulation box (1), a cleaning mechanism (5) is arranged on the circulation box (1), a screw (6) is installed inside the circulation box (1) through a bearing, a threaded frame (7) is connected to the outer side of the screw (6) through a thread, a movable frame (8) is fixedly connected to the upper end of the threaded frame (7), a sponge roller (9) is installed inside the movable frame (8) through a bearing, a motor (10) is fixedly installed at the right end of the circulation box (1), a gear one (11) is fixedly connected to the outer side of the connecting shaft of the sponge roller (9), a gear two (12) is installed at the lower end of the movable frame (8) through a bearing, a rack (13) is meshed at the lower end of the gear two (12), and an air intake pipe (15) is fixedly connected to both left and right ends of the circulation box (1).

2. The air circulation device for drying rice according to claim 1, characterized in that: The sponge roller (9) is in contact with the non-woven fabric filter frame (4), and the output shaft of the motor (10) is fixedly connected to the screw (6).

3. The air circulation device for drying rice according to claim 1, characterized in that: The rack (13) is fixedly connected to the inner wall of the circulation box (1), and the second gear (12) is meshed with the first gear (11).

4. The air circulation device for drying rice according to claim 1, characterized in that: A guide rod (14) is fixedly connected to the middle of the inner wall of the circulation box (1), and the guide rod (14) is slidably connected to the movable frame (8).

5. The air circulation device for rice drying according to claim 1, characterized in that: The cleaning mechanism (5) comprises a cleaning door (51), the front face of the circulation box (1) is hinged with the cleaning door (51), the front face of the circulation box (1) is internally slidably connected with a connecting nail (52), the outer side of the connecting nail (52) is provided with a spring (55), the outer side of the connecting nail (52) is slidably connected with a limiting plate (54), the front face of the limiting plate (54) contacts a limiting frame (53), and the limiting frame (53) is slidably connected to both the circulation box (1) and the cleaning door (51).

6. The air circulation device for drying rice according to claim 5, characterized in that: The limiting plate (54) is fixedly connected to the circulation box (1), one end of the spring (55) is fixedly connected to the limiting plate (54), and the other end of the spring (55) is fixedly connected to the connecting nail (52).

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