A heat insulation sealing device for grain bin door and window

Abstract

This utility model provides a heat-insulating and sealing device for grain storage doors and windows to save grain and reduce losses. It relates to the grain storage field and includes a front grain film with a rear grain film fixedly connected to its rear side. Welding strips are installed inside both the front and rear grain films. Through the integrated design of the front and rear grain films and the welding strips, the device, after installation and filling with inert gas, achieves both heat insulation and airtightness. The cost is low, approximately 1 / 10 of the cost of heat-insulating materials. It can effectively reduce the internal temperature by 5-8°C, lowering the grain loss rate in this area to less than 1%. The design of fixing the front and rear grain films with pressure grooves facilitates disassembly and assembly, making it convenient to use and reducing labor intensity. It effectively protects the grain inside the door, slows down the rise of fatty acids in grains, especially rice, corn, and soybeans, which is beneficial for grain preservation and freshness. It can effectively increase the overall airtightness of the storage room, improve the controlled atmosphere pest control effect, reduce controlled atmosphere costs, and reduce grain loss due to pests.

Description

Technical Field

[0001] This utility model relates to the field of grain storage, and in particular to a heat-insulating and sealing device for grain warehouse doors and windows for saving grain and reducing losses. Background Technology

[0002] Grain warehouses typically have large doors on both the front and back sides for entering and exiting the grain, usually measuring about 3 meters by 4 meters. During the summer, the insulation of these doors is often much worse than that of the warehouse walls, causing the grain temperature inside the doors to remain excessively high for extended periods. This leads to accelerated deterioration of grain quality, especially for varieties such as rice, corn, and soybeans. Simultaneously, high temperatures create a breeding ground for grain pests, resulting in significant damage to the grain. The amount of grain affected by this condition inside a single door is typically around 150 tons, totaling about 300 tons for a warehouse with two doors. The loss rate in this area is usually 2-3%, negatively impacting national food security. To address this issue, grain warehouses typically use polyurethane sandwich panels as an insulation layer, with an additional single-layer airtight membrane on the outside. This method is labor-intensive and costly (one door costs 8,000 yuan).

[0003] This product technology was developed to solve this problem. Utility Model Content

[0004] This invention designs a film that provides both heat insulation and airtightness, and is easy to install and disassemble, thus improving the user's work efficiency and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat-insulating and sealing device for grain storage doors and windows for saving grain and reducing loss, comprising a front grain film, a rear grain film fixedly connected to the rear side of the front grain film, welding strips provided inside the front and rear grain films, a one-way air valve fixedly connected to the surface of the front grain film, perforations provided on the surfaces of the front and rear grain films, an installation frame provided below the rear grain film, a slot provided on the surface of the installation frame, a threaded post provided inside the slot, and a pressure groove tube engaged inside the slot. Through the above component arrangement, the device can achieve both heat insulation and airtightness after being installed and filled with inert gas.

[0006] Preferably, a positioning ring is fixedly connected inside the perforation, and the installation position of the perforation corresponds one-to-one with the installation position of the threaded post. Through the corresponding design of the installation positions of the perforation and the positioning ring, the stability of the device during installation is improved.

[0007] Preferably, mounting rings are fixedly connected to both sides of the grooved tube. The mounting ring on one side of the grooved tube is positioned higher than the mounting ring on the other side. The mounting rings are fitted onto the surface of the threaded post. The staggered design of the mounting rings on both sides of the grooved tube facilitates the fixed installation between adjacent grooved tubes.

[0008] Preferably, the threaded column surface is threaded with a sleeve, and the bottom surface of the sleeve presses against the surface of the mounting ring. The positional design of the sleeve and the mounting ring improves the stability of the mounting ring during installation.

[0009] Preferably, the dimensions of the front and rear food films are larger than the dimensions of the slot, and the size design of the front and rear food films facilitates the installation of the front and rear food films to adapt to the position of the slot.

[0010] Preferably, the materials of the pre-feed membrane and the post-feed membrane are polymer membranes or nephrite membranes. The material design of the pre-feed membrane and the post-feed membrane facilitates the improvement of the sealing performance of the device.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the integrated molding design of the front grain film, the rear grain film and the welding strip enables the device to achieve both heat insulation and airtightness after installation and filling with inert gas. The cost is low, about 1 / 10 of the cost of heat insulation board, and can reduce the internal temperature by 5-8℃, reducing the grain loss rate in this area to less than 1%.

[0013] 2. In this utility model, the design of fixing the front and rear grain films by the pressure groove tube facilitates the disassembly and assembly of the device, is convenient to use, reduces labor intensity, effectively protects the safety of grain inside the gate, slows down the rate of fatty acid rise in grain, especially rice, corn, and soybeans inside the gate, which is conducive to the preservation of grain quality and freshness in this area. It can effectively increase the overall airtightness of the warehouse, improve the controlled atmosphere pest control effect, reduce controlled atmosphere costs, and reduce grain pest losses. Attached Figure Description

[0014] Figure 1 This utility model provides a perspective view of the main structure of a heat-insulating and sealing device for grain storage doors and windows used for saving grain and reducing losses.

[0015] Figure 2 An enlarged perspective view of the structure of the installation frame connected in a heat insulation and sealing device for grain warehouse doors and windows for saving grain and reducing loss is provided for this utility model.

[0016] Figure 3 An enlarged perspective view of the positioning ring connection structure in a grain storage door and window heat insulation and sealing device for saving grain and reducing loss is provided for this utility model.

[0017] Figure 4 This utility model presents an enlarged perspective view of the structure connecting the front grain film in a heat-insulating and sealing device for grain storage doors and windows used to save grain and reduce losses.

[0018] Legend: 1. Front feed film; 2. Rear feed film; 3. Welding strip; 4. One-way air valve; 5. Perforation; 6. Positioning ring; 7. Mounting frame; 8. Slot; 9. Threaded post; 10. Mounting ring; 11. Grooving tube; 12. Sleeve. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a heat-insulating and sealing device for grain warehouse doors and windows for saving grain and reducing loss, including a front grain film 1, a rear grain film 2 fixedly connected to the rear side of the front grain film 1, welding strips 3 provided inside the front grain film 1 and the rear grain film 2, a one-way air valve 4 fixedly connected to the surface of the front grain film 1, perforations 5 opened on the surfaces of the front grain film 1 and the rear grain film 2, an installation frame 7 provided below the rear grain film 2, a slot 8 opened on the surface of the installation frame 7, a threaded post 9 provided inside the slot 8, and a pressure groove tube 11 engaged inside the slot 8. Through the above component arrangement, the device can achieve the dual functions of heat insulation and airtightness after being installed and filled with inert gas.

[0022] like Figure 3 As shown, a positioning ring 6 is fixedly connected inside the perforation 5. The installation position of the perforation 5 corresponds one-to-one with the installation position of the threaded post 9. The corresponding design of the installation positions of the perforation 5 and the positioning ring 6 improves the stability of the device during installation.

[0023] like Figure 2 As shown, mounting rings 10 are fixedly connected to both sides of the grooved tube 11. The mounting ring 10 on one side of the grooved tube 11 is higher than the mounting ring 10 on the other side. The mounting ring 10 is fitted onto the surface of the threaded post 9. The staggered design of the mounting rings 10 on both sides of the grooved tube 11 facilitates the fixed installation between adjacent grooved tubes 11.

[0024] like Figure 2 As shown, a sleeve 12 is threaded onto the surface of the threaded column 9. The bottom surface of the sleeve 12 presses against the surface of the mounting ring 10. The positional design of the sleeve 12 and the mounting ring 10 improves the stability of the mounting ring 10 during installation.

[0025] like Figure 1 and Figure 4 As shown, the dimensions of the front grain film 1 and the rear grain film 2 are larger than the dimensions of the slot 8. The size design of the front grain film 1 and the rear grain film 2 facilitates the installation of the front grain film 1 and the rear grain film 2 to adapt to the position of the slot 8.

[0026] like Figure 3 As shown, the materials of the front feed membrane 1 and the rear feed membrane 2 are polymer membranes or nephrite membranes. The material design of the front feed membrane 1 and the rear feed membrane 2 facilitates the improvement of the sealing performance of the device.

[0027] The usage and working principle of this device are as follows: First, place the front grain film 1 and the rear grain film 2 near the outside of the welding strip 3 into the inside of the slot 8. At the same time, the positioning ring 6 passes through the surface of the threaded post 9. Then, the pressing tube 11 engages with the inside of the slot 8, and the installation ring 10 is fitted onto the surface of the threaded post 9. Two adjacent pressing tubes 11 are fitted onto the surface of one threaded post 9. After the sleeve 12 is threaded onto the surface of the threaded post 9, the pressing tube 11 presses the front grain film 1 and the rear grain film 2 tightly, and the installation ring 10 presses the top surface of the positioning ring 6 tightly. At this time, nitrogen or argon or other inert gases with low thermal conductivity are filled into the device through the one-way gas valve 4, which has the dual functions of heat insulation and sealing. When the device is not in use, press the valve core of the one-way gas valve 4 to start releasing the gas, remove the pressing tube 11, and fold it up for reuse.

[0028] Secondly, when this utility model is applied to the gate, the dimensions of the front grain film 1 and the rear grain film 2 are increased by 0.8 meters in length and width compared to the grain silo gate inside the installation frame 7. The welding strip 3 has a 0.2-meter reserved edge from the edge of the front grain film 1 and the rear grain film 2 as a pre-reserved edge without airbags. The welding strip 3 adopts a heat-sealed weld seam separation process. The airbag area adopts a uniform weld seam separation. The heat-sealed weld seam is from top to bottom, and a 30-centimeter reserved space at the bottom end is reserved as a common gas channel without welding. The gas is filled into the airbag area through a one-way gas valve. The separation interval of the airbag area is usually 0.5-0.8 meters. The airbag is filled with a thickness of about 0.1 meters. The thickness of a single layer film is not less than 16 mils. The color is transparent or light green. The device can be filled with gases with low thermal conductivity such as nitrogen and argon.

[0029] When this invention is applied to a storage window, the spacing between the partitions in the airbag area should be reduced accordingly, typically to about 0.1 meters.

[0030] The parts used in this application are all common equipment commonly found in the market and are well known to those skilled in the art. In this application, the above-mentioned equipment is used in a conventional manner without any modification to its structure or function. As for their settings, installation and electrical connection methods, those skilled in the art can perform debugging operations according to the corresponding product instruction manuals, so they will not be described in detail here.

[0031] 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 present utility model.

Claims

1. A heat-insulating and sealing device for grain storage doors and windows used to save grain and reduce loss, characterized in that, The system includes a front feed film (1), a rear feed film (2) fixedly connected to the rear side of the front feed film (1), welding strips (3) provided inside the front feed film (1) and the rear feed film (2), a one-way air valve (4) fixedly connected to the surface of the front feed film (1), perforations (5) opened on the surface of the front feed film (1) and the rear feed film (2), an installation frame (7) provided below the rear feed film (2), a slot (8) opened on the surface of the installation frame (7), a threaded post (9) provided inside the slot (8), and a pressure groove tube (11) engaged inside the slot (8).

2. A heat-insulating and sealing device for grain storage doors and windows for saving grain and reducing loss, as described in claim 1, is characterized in that: A positioning ring (6) is fixedly connected inside the perforation (5), and the installation position of the perforation (5) corresponds one-to-one with the installation position of the threaded column (9).

3. A heat-insulating and sealing device for grain storage doors and windows for saving grain and reducing loss, as described in claim 1, is characterized in that: Both sides of the grooved tube (11) are fixedly connected to mounting rings (10). The mounting ring (10) on one side of the grooved tube (11) is higher than the mounting ring (10) on the other side. The mounting ring (10) is fitted onto the surface of the threaded column (9).

4. A heat-insulating and sealing device for grain storage doors and windows for saving grain and reducing loss, as described in claim 3, is characterized in that: The threaded column (9) has a sleeve (12) threadedly fitted on its surface, and the bottom surface of the sleeve (12) presses against the surface of the mounting ring (10).

5. A heat-insulating and sealing device for grain storage doors and windows for saving grain and reducing loss, as described in claim 1, characterized in that: The dimensions of the front food film (1) and the rear food film (2) are larger than the dimensions of the slot (8).

6. A heat-insulating and sealing device for grain storage doors and windows for saving grain and reducing loss, as described in claim 1, characterized in that: The materials of the pre-feeding membrane (1) and the post-feeding membrane (2) are polymer membranes or molten metal membranes.

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