A low-temperature storage device for rice

By combining the spiral and flipping components, the problem of dense layers caused by static stacking of rice is solved, and smooth circulation of cold air in the low-temperature rice storage device is achieved, thus improving the storage quality.

CN224268120UActive Publication Date: 2026-05-26MEIZHOU GREEN GRAIN AGRI SCI & TECH DEV CO LTD
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Patent Information

Application Number
CN202521636929.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-04
Publication Date
2026-05-26
Estimated Expiration
2035-08-04

AI Technical Summary

Technical Problem

In existing low-temperature rice storage devices, the rice is statically piled up, causing the bottom layer to be compacted by the upper layer of grain, forming a dense layer. This affects the circulation and penetration of cold air, and thus affects the storage quality.

Method used

The system combines a spiral assembly and a tilting assembly. The screw conveyor scraper driven by the motor breaks up the dense layer, and the tilting motor drives the rotating plate to tilt the rice grains, promoting the circulation of cold air and loosening the rice grains.

Benefits of technology

It effectively breaks down the dense layer, promotes the circulation of cold air inside the storage box, improves storage quality, reduces the resistance to cold air circulation, and ensures smooth cold air circulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a low-temperature storage device for rice, relating to the technical field of low-temperature rice storage. It includes a low-temperature storage component, which internally houses a spiral assembly and a tilting assembly. An insulation component is located on the inner side of the low-temperature storage component. The low-temperature storage component includes a storage tank, with a ventilation pipe inside the storage tank. The spiral assembly includes a motor, with a drive shaft mounted at the bottom of the motor. A spiral conveyor is located outside the drive shaft, and a scraper is mounted at the bottom of the spiral conveyor. This utility model uses an electric motor to drive the drive shaft, which in turn drives the spiral conveyor. The scraper helps to scrape up the rice on the partition, and the spiral thrust of the conveyor pushes the rice at the bottom upwards, breaking up the dense layer formed at the bottom of the storage tank and promoting the circulation of cold air inside the storage tank, thereby ensuring storage quality.
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Description

Technical Field

[0001] This utility model relates to the field of low-temperature rice storage technology, and in particular to a low-temperature rice storage device. Background Technology

[0002] During storage, rice is prone to quality deterioration, mold growth, and decreased germination rate due to factors such as respiration, insect and mold growth, and changes in temperature and humidity. Low-temperature storage is an effective way to extend the shelf life of rice.

[0003] In the prior art, such as the patent application CN222997068U entitled "A Low-Temperature Rice Storage Chamber," a ventilation duct is included. This duct is installed on one side of the storage chamber wall and connected to an external fan to introduce low-temperature air into it. A regulating duct is also included, installed on the ventilation duct and arranged in several groups. Each regulating duct includes a branch pipe seat and a ventilation pipe rotatably mounted on the branch pipe seat. The ventilation pipe is connected to the ventilation duct via the branch pipe seat and is a telescopic tubular structure with air holes distributed on it. This device uses a refrigeration unit connected to the ventilation duct to introduce cold air into the duct and then into the piled rice through the ventilation pipe. The ventilation pipe is a telescopic tubular structure with an adjustable placement angle, allowing its length to be adjusted according to the area of ​​the rice pile, thus lowering the internal temperature of the rice and improving ventilation.

[0004] In existing low-temperature storage devices, rice is usually stored in a static pile. Due to gravity and friction between rice grains, the rice at the bottom is easily compacted by the upper layer of grain, forming a hard, dense layer. This affects the circulation and penetration of cold air inside the grain pile, and thus seriously affects the overall storage quality. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in existing low-temperature storage devices, rice is usually statically piled up. Due to gravity and friction between rice grains, the rice at the bottom is easily compacted by the upper layer of grain, forming a hard, dense layer. This affects the circulation and penetration of cold air inside the grain pile, thus seriously affecting the overall storage quality. Therefore, this invention proposes a low-temperature rice storage device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a low-temperature storage device for rice, comprising a low-temperature storage component, wherein a spiral component and a turning component are provided inside the low-temperature storage component, and a heat preservation component is provided on the inner side of the low-temperature storage component. The low-temperature storage component includes a storage box, and a ventilation pipe is provided inside the storage box. The spiral component includes a motor, a drive shaft is installed at the bottom of the motor, a spiral conveyor is provided on the outer side of the drive shaft, and a scraper is installed at the bottom of the spiral conveyor.

[0007] Preferably, the flipping assembly includes a rotating plate with rotating shafts connected to both ends of the rotating plate, and a flipping motor is connected to one end of one of the rotating shafts.

[0008] Preferably, a partition is fixedly installed inside the storage box, and the scraper is connected to the partition.

[0009] Preferably, the insulation component includes insulation cotton, which is disposed inside the storage box.

[0010] Preferably, a feeding plate is installed on the side of the storage box, a sealing gasket is installed on the outer side of the feeding plate, and electric push rods are symmetrically installed between the storage box and the feeding plate.

[0011] Preferably, the storage box has a feed inlet on the top and ventilation slots on the side.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the electric drive shaft is rotated by the motor, which helps to drive the screw conveyor to rotate. The scraper helps to scrape up the rice on the partition. Then, the screw thrust of the screw conveyor helps to push the rice at the bottom upward, which helps to break the dense layer formed at the bottom of the storage box and promotes the circulation of cold air inside the storage box, thereby ensuring the storage quality.

[0014] 2. In this utility model, one of the rotating shafts is driven by a flip motor to rotate, which in turn drives the rotating plate to rotate. This facilitates the flipping of the rice in the middle of the storage box, allowing the rice that was originally in the middle layer to spread to the surrounding areas. This loosens the rice, reduces the resistance to the flow of cold air in the grain pile, and promotes smoother circulation of cold air between the middle and upper layers of the storage box. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a low-temperature rice storage device;

[0016] Figure 2 This utility model provides another structural schematic diagram of a low-temperature rice storage device;

[0017] Figure 3 This utility model provides an internal cross-sectional view of a low-temperature rice storage device.

[0018] Figure 4 This invention provides a partial cross-sectional view of a rice low-temperature storage device.

[0019] Legend: 1. Low-temperature storage component; 101. Storage box; 102. Partition; 103. Ventilation pipe; 104. Ventilation slot; 105. Feed inlet; 106. Feed plate; 107. Electric push rod; 108. Sealing gasket; 2. Screw assembly; 201. Motor; 202. Drive shaft; 203. Screw conveyor; 204. Scraper; 3. Tilting assembly; 301. Tilting motor; 302. Rotating shaft; 303. Rotating plate; 4. Insulation component; 401. Insulation cotton. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a low-temperature storage device for rice, including a low-temperature storage component 1, a spiral component 2 and a turning component 3 are arranged inside the low-temperature storage component 1, a heat preservation component 4 is arranged on the inner side of the low-temperature storage component 1, the low-temperature storage component 1 includes a storage box 101, a ventilation pipe 103 is arranged inside the storage box 101, the spiral component 2 includes a motor 201, a drive shaft 202 is installed at the bottom of the motor 201, a spiral conveyor 203 is arranged on the outer side of the drive shaft 202, a scraper 204 is installed at the bottom of the spiral conveyor 203, a partition 102 is fixedly installed inside the storage box 101, the scraper 204 is connected to the partition 102, a feed inlet 105 is installed at the top of the storage box 101, and a ventilation slot 104 is opened on the side of the storage box 101.

[0023] In this embodiment, a refrigeration device is connected to the ventilation pipe 103 to introduce cold air into the ventilation pipe 103, which is beneficial for low-temperature storage of rice inside the storage box 101. The partition 102 helps to isolate the rice from direct contact with the bottom ventilation pipe 103. The motor 201 drives the transmission shaft 202 to rotate, which helps to drive the screw conveyor 203 to rotate. The scraper 204 helps to scrape the rice on the partition 102. Then, the screw thrust of the screw conveyor 203 helps to push the rice at the bottom upward, which helps to break the dense layer formed at the bottom of the storage box 101 and promotes the circulation of cold air inside the storage box 101, thereby ensuring the storage quality. The feed port 105 makes it convenient to put the rice into the storage box 101.

[0024] Example 2: As Figures 1-4 As shown, the flipping assembly 3 includes a rotating plate 303, with rotating shafts 302 connected to both ends of the rotating plate 303. One end of one of the rotating shafts 302 is connected to a flipping motor 301. The heat preservation assembly 4 includes heat preservation cotton 401, which is placed inside the storage box 101. A feeding plate 106 is installed on the side of the storage box 101, and a sealing gasket 108 is installed on the outside of the feeding plate 106. Electric push rods 107 are symmetrically installed between the storage box 101 and the feeding plate 106.

[0025] In this embodiment, multiple flipping components 3 are arranged in the middle of the storage box 101. One of the rotating shafts 302 is electrically driven by the flipping motor 301 to rotate, and the other rotating shaft 302 rotates in conjunction with it. This facilitates the rotation of the rotating plate 303, which in turn facilitates the flipping of the rice in the middle of the storage box 101. This allows the rice, which was originally in the middle layer, to spread outwards, which helps to loosen the rice and reduce the flow resistance of cold air in the grain pile. This promotes smoother cold air circulation between the middle and upper layers of the storage box 101. By controlling the extension and retraction of the electric push rod 107, the feeding plate 106 can be opened and closed. The sealing gasket 108 provides a sealing effect, making it convenient for the rice to be fed through the slot of the feeding plate 106. The insulation cotton 401 helps to reduce the loss of cold air, thereby providing a heat preservation effect.

[0026] The working principle of this embodiment is as follows: In use, rice is first conveniently placed into the storage box 101 through the feed inlet 105. Then, a refrigeration device is connected to the ventilation pipe 103, introducing cold air into the ventilation pipe 103, which facilitates low-temperature storage of the rice inside the storage box 101. The partition 102 helps to prevent direct contact between the rice and the bottom ventilation pipe 103. The insulation cotton 401 helps to reduce the dissipation of cold air, thus providing insulation. Then, the motor 201 electrically drives the transmission shaft 202 to rotate, which in turn drives the screw conveyor 203 to rotate. The scraper 204 scrapes the rice on the partition 102, and then the screw thrust of the screw conveyor 203 helps to push the rice at the bottom upwards, which is beneficial for threshing. The dense layer formed at the bottom of the storage box 101 facilitates the circulation of cold air inside the storage box 101. Multiple flipping components 3 are located in the middle of the storage box 101. A flipping motor 301 electrically drives one of the rotating shafts 302 to rotate, which in turn drives the rotating plate 303 to rotate. This facilitates the flipping of the rice in the middle of the storage box 101, allowing the rice, originally in the middle layer, to spread outwards, thus loosening the rice and reducing the resistance to the flow of cold air in the grain pile. Finally, the electric push rod 107 is controlled to extend and retract, which facilitates the opening and closing of the feeding plate 106. The sealing gasket 108 provides a sealing effect, making it convenient for the rice to be fed through the slot of the feeding plate 106.

[0027] The electric push rod 107, motor 201, drive shaft 202, screw conveyor 203, tilting motor 301, and rotating shaft 302 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use, so the electric push rod 107, motor 201, drive shaft 202, screw conveyor 203, tilting motor 301, and rotating shaft 302 will not be explained in detail.

[0028] 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 rice low temperature storage device comprising a low temperature storage assembly (1), characterized by: The low-temperature storage component (1) is provided with a spiral component (2) and a flipping component (3) inside. The low-temperature storage component (1) is provided with a heat preservation component (4) on its inner side. The low-temperature storage component (1) includes a storage box (101). The storage box (101) is provided with a ventilation pipe (103) inside. The spiral component (2) includes a motor (201). A drive shaft (202) is installed at the bottom of the motor (201). A spiral conveyor (203) is provided on the outer side of the drive shaft (202). A scraper (204) is installed at the bottom of the spiral conveyor (203).

2. The low-temperature storage device for rice according to claim 1, characterized in that: The flipping assembly (3) includes a rotating plate (303), with rotating shafts (302) connected to both ends of the rotating plate (303), and a flipping motor (301) connected to one end of one of the rotating shafts (302).

3. The low-temperature storage device for rice according to claim 1, characterized in that: The storage box (101) is fixedly installed with a partition (102), and the scraper (204) is connected to the partition (102).

4. The rice low-temperature storage device according to claim 1, characterized in that: The insulation component (4) includes insulation cotton (401), which is disposed inside the storage box (101).

5. The low-temperature storage device for rice according to claim 1, characterized in that: A feeding plate (106) is installed on the side of the storage box (101), and a sealing gasket (108) is installed on the outside of the feeding plate (106). Electric push rods (107) are symmetrically installed between the storage box (101) and the feeding plate (106).

6. The low-temperature storage device for rice according to claim 1, characterized in that: The storage box (101) is equipped with a feed inlet (105) on the top and a ventilation slot (104) on the side of the storage box (101).

Citation Information

Patent Citations

  • Rice low-temperature storage room

    CN222997068U