A rain cover for a top ventilation opening of a grain bin

Abstract

The utility model relates to rainproof cap technical field, solved the problem that the internal temperature of granary is higher, and the external temperature is lower during the rainy season, forms temperature difference, leads to the inner wall of ventilating cap to produce water drop condensation, and the waterway condensation slides to the inside of granary, thereby influences the storage quality of internal grain problem. Specifically for a kind of rainproof cap for granary top vent, including base, the top of base is provided with sleeve, the top of sleeve is provided with conical cylinder, the outer surface of sleeve is sleeved with ventilating cylinder, the top of ventilating cylinder is connected with horizontal pipe, the top surface of base and located the adjacent place of sleeve is provided with barrier ring, the inside of sleeve is set in barrier ring, the surface of sleeve is annular and is provided with a plurality of flow guide groove extending from top end to bottom end longitudinally, the edge of both ends of horizontal pipe is provided with baffle, the surface of flow guide groove longitudinally penetrates the surface of sleeve, the side of barrier ring surface is provided with flow guide gap.

Description

Technical Field

[0001] This utility model relates to the field of rain cap technology, specifically a rain cap for the ventilation opening on the top of a grain warehouse. Background Technology

[0002] The patent announcement number CN223231651U discloses a rainproof cap for the ventilation opening of a grain silo. It includes a cap body, a fixing ring fixedly installed at the lower end of the cap body, a cross plate fixedly installed on the inner wall of the fixing ring, a drying structure installed at the upper end of the cap body, the drying structure including a motor fixedly installed at the upper end of the cap body, an inner plate fixedly connected to the output end of the motor passing through the cap body, a sealing gasket installed at the upper end of the inner plate, drying grooves opened at the front and rear ends of the cap body, the upper end of the sealing gasket being joined to the inner wall of the cap body, and sealing strips fixedly installed on both sides of the lower end of the inner plate, the lower end of the sealing strips being in contact with the upper surface of the fixing ring.

[0003] It can quickly open the drying chamber, reducing the difficulty for operators to open the cap and speeding up the drying efficiency of grain.

[0004] However, the temperature inside the grain silo is high, and the outside temperature is low during the rainy season, creating a temperature difference that causes water droplets to condense on the inner wall of the ventilation cap. The condensed water then slides into the grain silo, affecting the storage quality of the grain. This solution is not very effective in protecting the rain caps of the grain silo ventilation openings. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rainproof cap for the ventilation opening on the top of a grain silo. This solves the problem that when the temperature inside the grain silo is high and the outside temperature is low during the rainy season, a temperature difference is created, causing water droplets to condense on the inner wall of the ventilation cap. The condensed water then slides into the grain silo, affecting the storage quality of the grain inside.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rainproof cap for a ventilation opening on the top of a grain silo, comprising a base, a sleeve on the top of the base, a conical cylinder on the top of the sleeve, a ventilation cylinder fitted onto the outer surface of the sleeve, a horizontal pipe connected to the top of the ventilation cylinder, a barrier ring on the top surface of the base adjacent to the sleeve, the sleeve being disposed inside the barrier ring, and a plurality of guide grooves extending longitudinally from the top to the bottom being annularly formed on the surface of the sleeve.

[0007] In one specific embodiment, both ends of the horizontal tube are provided with baffles.

[0008] In a specific embodiment, the guide groove extends longitudinally through the surface of the sleeve, a guide notch is provided on one side of the surface of the barrier ring, and a guide groove is provided on one side of the top surface of the base, which is coaxially arranged with the guide notch.

[0009] In one specific embodiment, the conical cylinder is narrower at the top and wider at the bottom.

[0010] In one specific embodiment, the ventilation duct and the sleeve form an airflow channel.

[0011] In one specific embodiment, the barrier ring is arranged around the sleeve and forms a water collection cavity between the sleeve and the outer wall of the sleeve.

[0012] Compared with the prior art, this utility model provides a rainproof cap for the ventilation opening on the top of a grain silo, which has the following beneficial effects:

[0013] In the technical solution disclosed in this utility model, the water droplets formed by the condensation of the sleeve due to temperature difference on the inner wall of the ventilation cylinder can be guided downward in an orderly manner along the guide groove and effectively collected by the barrier ring. The condensate is then discharged in a directional manner through the guide notch and the drainage groove, which effectively prevents the condensate from dripping directly into the grain silo ventilation opening. This solves the problem of condensate causing the grain inside to mold and deteriorate, and significantly improves the protection effect on the quality of grain storage.

[0014] The structural design of the ventilation tube with a horizontal pipe connected to the top and baffles at both ends, as set in this utility model, realizes a two-way ventilation mode in which air enters from both ends of the horizontal pipe, improving ventilation efficiency. At the same time, by utilizing the combined action of the horizontal channel and the baffles at the ends, rainwater, especially rainwater falling at an angle, can be effectively blocked from directly entering the ventilation system, thereby improving the primary rain protection capability of the rain cap in severe weather. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the sleeve structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the conical cylinder structure of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0020] In the diagram: 1. Base; 2. Sleeve; 3. Barrier ring; 4. Guide channel; 5. Conical cylinder; 6. Ventilation cylinder; 7. Horizontal pipe; 8. Baffle plate; 9. Drainage channel. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Figures 1-4 In one embodiment of this utility model, a rainproof cap for the ventilation opening of a grain silo includes a base 1, a sleeve 2 on the top of the base 1, a conical cylinder 5 at the top of the sleeve 2, a ventilation cylinder 6 fitted onto the outer surface of the sleeve 2, a horizontal pipe 7 connected to the top of the ventilation cylinder 6, a barrier ring 3 on the top surface of the base 1 adjacent to the sleeve 2, the sleeve 2 being disposed inside the barrier ring 3, and a plurality of guide grooves 4 extending longitudinally from the top to the bottom of the sleeve 2 being annularly formed on the surface of the sleeve 2.

[0023] The specific problem addressed in this embodiment is the issue of high internal temperature in grain silos combined with low external temperature during the rainy season, creating a temperature difference that causes condensation to form on the inner wall of the ventilation cap. This condensed water then drips into the grain silo, affecting the quality of the stored grain. This invention utilizes a circular guide groove 4 on the surface of the sleeve 2 and a water collection cavity structure formed between the sleeve 2 and the barrier ring 3. This design allows water droplets formed by condensation on the inner wall of the ventilation duct 6 due to the temperature difference to flow orderly downwards along the guide groove 4 and be effectively collected by the barrier ring 3. The condensate is then directed out through the guide opening and the drainage groove 9, effectively preventing condensate from dripping directly into the grain silo ventilation opening. This solves the problem of condensate causing mold and spoilage of the stored grain, significantly improving the protection of grain storage quality.

[0024] The rainproof cap for the top ventilation opening of the grain silo is mainly supported by a base 1. A sleeve 2 is fixedly installed on the top of the base 1, and a conical cylinder 5 is connected to the top of the sleeve 2. A ventilation cylinder 6 is fitted onto the outer surface of the sleeve 2, and the top of the ventilation cylinder 6 is connected to a horizontal pipe 7. On the top surface of the base 1, and adjacent to the sleeve 2, a barrier ring 3 is set, with the sleeve 2 located inside the barrier ring 3. To guide the flow of condensate, several guide grooves 4 are arranged in a ring on the surface of the sleeve 2, extending longitudinally from the top to the bottom of the sleeve 2. The working principle is that when condensate is generated on the inner wall of the ventilation cylinder 6 due to temperature difference, the water flows downward along the guide grooves 4 and is collected by the barrier ring 3, thus preventing it from dripping into the grain silo ventilation opening. Through the cooperation of the guide grooves 4 on the sleeve 2 and the barrier ring 3, the internal condensate is effectively collected and guided, fundamentally solving the technical problem of condensate intrusion into the grain silo.

[0025] In this specific embodiment, baffles 8 are provided at both ends of the horizontal tube 7;

[0026] The shield 8 can effectively block rainwater falling from the upper side, and together with the horizontal pipe 7, it forms the first rainproof barrier, improving the rainproof capability of the horizontal pipe 7.

[0027] In this specific embodiment, the guide groove 4 extends longitudinally through the surface of the sleeve 2, a guide notch is provided on one side of the surface of the barrier ring 3, and a guide groove 9 is provided on one side of the top surface of the base 1, which is coaxially arranged with the guide notch.

[0028] The guide groove 4 extends longitudinally through the surface of the sleeve 2. A guide notch is provided on one side of the surface of the barrier ring 3, and a coaxial drainage groove 9 is provided on the top surface of the base 1 at the edge corresponding to the guide notch. The guide notch and drainage groove 9 provide a clear discharge path for the condensate collected in the barrier ring 3, ensuring that the accumulated water can be smoothly guided away from the rain cap area.

[0029] In this specific embodiment, the conical cylinder 5 is narrower at the top and wider at the bottom;

[0030] The tapered cylinder 5, which is narrower at the top and wider at the bottom, can guide water droplets that may slide off from its top, such as condensation or rainwater that may accidentally enter, to the outer wall of the sleeve 2, and then into the diversion system, thus preventing the water droplets from falling directly.

[0031] In this specific embodiment, an airflow channel is formed between the ventilation duct 6 and the sleeve 2;

[0032] This structure ensures that air can smoothly enter through the horizontal pipe 7, flow through the airflow channel formed by the ventilation duct 6 and the sleeve 2, and finally enter the grain silo from the bottom, achieving efficient ventilation.

[0033] In this specific embodiment, the barrier ring 3 is arranged around the sleeve 2 and forms a water collection cavity between the sleeve 2 and the outer wall of the sleeve 2;

[0034] This water collection chamber can temporarily store and guide the condensate flowing down from the guide channel 4, causing it to converge at the guide opening. It is a key component of the internal waterproofing system.

[0035] Working principle: External air enters through the openings at both ends of the horizontally set horizontal pipe 7, flows through the airflow channel between the ventilation duct 6 and the sleeve 2, and enters the grain silo from the bottom, achieving two-way ventilation. At the same time, the structure of the horizontal pipe 7 and its shielding plate 8 can effectively prevent rainwater from directly intruding. When the temperature difference between the inside and outside of the grain silo causes water droplets to form on the inner wall of the ventilation duct 6, the condensate drips down the wall and is guided by the conical cylinder 5 to the outer wall of the sleeve 2. Then, it flows downward along the longitudinal guide groove 4 and merges into the water collection cavity formed by the barrier ring 3 and the sleeve 2. Finally, the condensate is guided to the outside through the guide notch on the barrier ring 3 and the drainage groove 9 on the base 1, thereby effectively preventing water droplets from falling into the grain silo.

[0036] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rainproof cap for the ventilation opening on the top of a grain silo, comprising a base (1), characterized in that: The top of the base (1) is provided with a sleeve (2), the top of the sleeve (2) is provided with a conical cylinder (5), the outer surface of the sleeve (2) is fitted with a ventilation cylinder (6), the top of the ventilation cylinder (6) is connected to a horizontal pipe (7), the top surface of the base (1) and adjacent to the sleeve (2) is provided with a barrier ring (3), the sleeve (2) is located inside the barrier ring (3), and the surface of the sleeve (2) is provided with a number of guide grooves (4) extending longitudinally from the top to the bottom in an annular shape.

2. A rainproof cap for the ventilation opening on the top of a grain silo according to claim 1, characterized in that: Both ends of the horizontal tube (7) are provided with baffles (8).

3. A rainproof cap for the ventilation opening on the top of a grain silo according to claim 1, characterized in that: The guide groove (4) extends longitudinally through the surface of the sleeve (2), and a guide notch is provided on one side of the surface of the barrier ring (3). A guide groove (9) is provided on one side of the top surface of the base (1) and is coaxially arranged with the guide notch.

4. A rainproof cap for the ventilation opening on the top of a grain silo according to claim 1, characterized in that: The conical tube (5) has a configuration that is narrow at the top and wide at the bottom.

5. A rainproof cap for the top ventilation opening of a grain silo according to claim 1, characterized in that: The ventilation duct (6) and the sleeve (2) form an airflow channel.

6. A rainproof cap for the ventilation opening on the top of a grain silo according to claim 1, characterized in that: The barrier ring (3) is arranged around the sleeve (2) and forms a water collection cavity between the outer wall of the sleeve (2).

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