Connecting device for grain inlet of granary

Abstract

The utility model relates to the field of grain storage, in particular to a granary grain inlet connecting device which comprises a grain inlet pipeline, a sealing cover and a connecting pipeline. One end of the grain feeding pipeline is communicated with the grain bin, a first sealing convex block is arranged at the other end of the grain feeding pipeline, and a first inclined wedge surface is arranged on the outer side surface of the first sealing convex block; the sealing cover comprises a plate body and an inclined wedge ring block, the inclined wedge ring block is annularly arranged on the peripheral side of the plate body, a first sealing piece is arranged on the edge of the bottom face of the plate body, the first sealing piece corresponds to the top face of the first sealing protruding block in position, and the inner side face of the inclined wedge ring block is a second inclined wedge face; a protruding second sealing protruding block is arranged at the bottom of the inner side face of the connecting pipeline, a third inclined wedge face is arranged on the second sealing protruding block, and the connecting pipeline is attached to the first inclined wedge face through the third inclined wedge face, so that the connecting pipeline and the grain inlet pipeline are concentric, and collision between grains and the grain inlet pipeline is reduced.

Description

Technical Field

[0001] The utility model relates to the field of grain storage, and particularly relates to a connecting device for a grain inlet of a granary. Background Art

[0002] At present, in the field of grain storage in China, there are mainly silos, shallow silos, steel silos, flat warehouses, etc. for long-term storage or turnover of grain. The storage time of grain is usually very long, which requires grain storage units to take some measures to avoid or reduce the occurrence of mildew, insect pests, etc. in the grain. One of the main measures adopted is to carry out circulating fumigation operation in the warehouse with highly toxic phosphine gas. When implementing this operation, the whole granary must be sealed (airtight) and maintained for a period of time.

[0003] Generally, sealing covers are set at the grain inlet and outlet. At the same time, the existing widely used connecting device for the grain inlet adopts a vertical chute to directly connect the manual gate with the interface of the inlet chute into the warehouse. The existing sealing covers and connecting devices result in poor airtightness of the granary, and there are problems such as air leakage or water seepage, which greatly affects the grain storage effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connecting device for a grain inlet of a granary, aiming to improve the problem that the existing sealing covers and connecting devices result in poor airtightness of the granary, and there are problems such as air leakage or water seepage.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connecting device for a grain inlet of a granary, comprising a grain inlet pipe, a sealing cover and a connecting pipe;

[0007] One end of the grain inlet pipe is communicated with the granary, the other end of the grain inlet pipe is provided with a first sealing convex block, the outer side surface of the first sealing convex block is provided with a first inclined wedge surface, and the outer side surface of the grain inlet pipe is provided with a first flange extending outwards;

[0008] The sealing cover comprises a plate body, an inclined wedge ring block and a second flange. The inclined wedge ring block is arranged around the circumference of the plate body, the second flange is arranged around the circumference of the inclined wedge ring block, the bottom edge of the plate body is provided with a first sealing member, the first sealing member corresponds to the top surface position of the first sealing convex block, and the inner side surface of the inclined wedge ring block is a second inclined wedge surface;

[0009] The bottom of the inner side surface of the connecting pipe is provided with a protruding second sealing convex block, the second sealing convex block is provided with a third inclined wedge surface, and the outer side surface of the connecting pipe is fixed with a third flange;

[0010] The first inclined wedge surface, the second inclined wedge surface and the third inclined wedge surface correspond to each other in position and have the same inclination angle. The first flange is in contact with the second flange or the third flange, and a fixing member is provided on the first flange. The fixing member is fixedly connected to the second flange or the third flange.

[0011] Further, a sealing groove is formed on the top surface of the first flange, and an outwardly protruding embedding block is fixed on the bottom surface of the inclined wedge ring block and / or the bottom surface of the connecting pipe. The embedding block is embedded in the sealing groove.

[0012] Further, a bent guiding stop block is fixed on the inner side surface of the second sealing convex block. The bent guiding stop block includes a horizontal portion and a guiding portion connected to each other. The free end of the horizontal portion is connected to the top of the third inclined wedge surface, and the horizontal portion corresponds to the top surface of the first sealing convex block in position.

[0013] The guiding portion extends downward.

[0014] Further, a second sealing member is fixed on the bottom surface of the horizontal portion.

[0015] Further, a sealing patch is fixed on the second inclined wedge surface.

[0016] Further, the width of the first flange is smaller than the widths of the second flange and the third flange.

[0017] Further, connection channels are formed on the first flange, the second flange and the third flange, and the fixing member passes through the connection channels and is fixedly connected to the second flange or the third flange.

[0018] Further, the top surface of the plate body is an inclined surface, and the inclined surface slopes downward from the center of the top surface to the four peripheral edges of the top surface.

[0019] Further, a counterweight is fixed at the center of the bottom surface of the plate body.

[0020] After adopting the above technical solution, compared with the background technology, the utility model has the following advantages:

[0021] 1. During storage, the connecting pipe moves upward to separate from the grain inlet pipe, and the sealing cover is covered on the grain inlet pipe to seal the grain inlet of the grain inlet pipe. Using the gravity of the sealing cover itself, a force is applied to the second inclined wedge surface towards the first inclined wedge surface, making the fit between the second inclined wedge surface and the first inclined wedge surface closer, achieving the purpose of positioning the sealing cover, improving the sealing effect of the sealing cover, and enhancing the airtightness of the granary; through the connection between the first flange and the second flange by the fixing member, the sealing cover is limited, ensuring the stability of the sealing cover during storage and achieving the purpose of continuous sealing.

[0022] Similarly, during the grain inlet process, the connecting pipe applies a force towards the first inclined wedge surface to the third inclined wedge surface under the influence of gravity, improving the tightness of the fit between the third inclined wedge surface and the first inclined wedge surface, thereby preventing water ingress and other situations during the grain inlet process and ensuring the safety of grain storage.

[0023] 2. During the grain inlet process, the connecting pipe descends and docks with the grain inlet pipe. Through the fit between the third inclined wedge surface and the first inclined wedge surface, the positioning of the connecting pipe is achieved, ensuring the concentricity between the connecting pipe and the grain inlet pipe, thereby improving the stability of the grain inlet process, reducing the collision between the grain and the grain inlet pipe, and avoiding grain damage; through the connection between the first flange and the third flange by the fixing member, the connecting pipe is further limited, ensuring the stability of the connection between the connecting pipe and the grain inlet pipe during the grain inlet process. Brief Description of the Drawings

[0024] Figure 1 It is the first exploded structural schematic diagram of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0025] Figure 2 It is the enlarged structural schematic diagram of part A of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0026] Figure 3 It is the first structural schematic diagram of the grain inlet state of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0027] Figure 4 It is the enlarged structural schematic diagram of part B of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0028] Figure 5 It is the structural schematic diagram of the sealing state of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0029] Figure 6 It is the enlarged structural schematic diagram of part C of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0030] Figure 7 It is the second exploded structural schematic diagram of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0031] Figure 8 It is the enlarged structural schematic diagram of part D of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0032] Figure 9 It is the second structural schematic diagram of the grain inlet state of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0033] Figure 10 It is the enlarged structural schematic diagram of part E of the connecting device for the grain inlet of the grain storage bin of the present utility model;

[0034] Figure 11 This is a top view of the grain inlet pipe of the connecting device for the grain inlet of the present utility model.

[0035] Explanation of reference numerals:

[0036] 1. Grain inlet pipe; 11. First sealing convex block; 111. First inclined wedge surface; 12. First flange; 121. Sealing groove; 122. Third sealing member; 123. Connecting channel;

[0037] 2. Sealing cover; 21. Plate body; 211. First sealing member; 212. Inclined surface; 213. Counterweight; 22. Inclined wedge ring block; 221. Second inclined wedge surface; 222. Embedded block; 223. Sealing patch; 23. Second flange;

[0038] 3. Connecting pipe; 31. Second sealing convex block; 311. Third inclined wedge surface; 312. Inclined guiding surface; 313. Bending guiding stop block; 3131. Horizontal part; 3132. Guiding part; 3133. Second sealing member; 32. Third flange. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0040] In addition, it should be noted that: the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0041] When an element is referred to as being "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] Unless otherwise clearly defined and limited, the terms "installation", "connection" and "linkage" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0043] Embodiment

[0044] Please refer to Figures 1-11 As shown, this embodiment provides a connecting device for the grain inlet of a granary, including a grain inlet pipe 1, a sealing cover 2 and a connecting pipe 3. One end of the grain inlet pipe 1 is communicated with the granary, and a first sealing convex block 11 is arranged at the other end of the grain inlet pipe 1. A first inclined wedge surface 111 is arranged on the outer side surface of the first sealing convex block 11, and a first flange 12 extending outward is arranged on the outer side surface of the grain inlet pipe 1. The sealing cover 2 includes a plate body 21, an inclined wedge ring block 22 and a second flange 23. The inclined wedge ring block 22 is arranged around the circumference of the plate body 21, and the second flange 23 is arranged around the circumference of the inclined wedge ring block 22. A first sealing member 211 is arranged at the bottom edge of the plate body 21, and the first sealing member 211 corresponds to the top surface position of the first sealing convex block 11. The inner side surface of the inclined wedge ring block 22 is a second inclined wedge surface 221. A raised second sealing convex block 31 is arranged at the bottom of the inner side surface of the connecting pipe 3. A third inclined wedge surface 311 is arranged on the second sealing convex block 31, and a third flange 32 is fixed on the outer side surface of the connecting pipe 3. The first inclined wedge surface 111, the second inclined wedge surface 221 and the third inclined wedge surface 311 correspond to each other in position and have the same inclination angle. The first flange 12 is attached to the second flange 23 or the third flange 32, and a fixing member (not shown in the drawings) is arranged on the first flange 12, and the fixing member is fixedly connected to the second flange 23 or the third flange 32. In this embodiment, an inclined guiding surface 312 is arranged at the top of the second sealing convex block 31, and the inclined guiding surface 312 slopes downward from one side of the inner side surface of the grain inlet pipe to the outside of the second sealing convex block 31. During the grain inlet process, the inclined guiding surface 312 is in the shape of a horn with a larger upper part and a smaller lower part to guide the grain, so as to avoid the accumulation of grain on the second sealing convex block 31 and affect the grain inlet process.

[0045] Please refer to Figures 1-6As shown, during the grain feeding process, the connecting pipe 3 descends and docks with the grain feeding pipe 1. Through the fitting between the third inclined wedge surface 311 and the first inclined wedge surface 111, the positioning of the connecting pipe 3 is achieved, ensuring the concentricity between the connecting pipe 3 and the grain feeding pipe 1, thereby improving the stability of the grain feeding process, reducing the collision between the grain and the grain feeding pipe 1, and avoiding grain damage; through the connection between the first flange 12 and the third flange 32 by the fixing member, the connecting pipe 3 is further limited, ensuring the stability of the connection between the connecting pipe 3 and the grain feeding pipe 1 during the grain feeding process; during storage, the connecting pipe 3 ascends and separates from the grain feeding pipe 1, and the sealing cover 2 is covered on the grain feeding pipe 1 to seal the grain inlet of the grain feeding pipe 1. Using the gravity of the sealing cover 2 itself, a force is applied to the second inclined wedge surface 221 towards the first inclined wedge surface 111, making the fitting between the second inclined wedge surface 221 and the first inclined wedge surface 111 tighter, achieving the positioning purpose of the sealing cover 2, improving the sealing effect of the sealing cover 2, and enhancing the airtightness of the grain bin; through the connection between the first flange 12 and the second flange 23 by the fixing member, the sealing cover 2 is further limited, ensuring the stability of the sealing cover 2 during storage. Moreover, the first sealing member 211 corresponds to the top surface position of the first sealing protrusion 11. During storage, the first sealing member 211 and the top surface of the first sealing protrusion 11 abut against each other, and the plate body 21 applies a downward force to the first sealing member 211, further enhancing the airtightness of the grain bin during storage. In this embodiment, the first sealing member 211 is an annular sealing rubber strip.

[0046] On the top surface of the first flange 12, a sealing groove 121 is provided. On the bottom surface of the inclined wedge ring block 22 and / or on the bottom surface of the connecting pipe 3, an outwardly protruding embedding block 222 is fixed, and the embedding block 222 is embedded in the sealing groove 121. In this embodiment, outwardly protruding embedding blocks 222 are fixed on the bottom surface of the inclined wedge ring block and the bottom surface of the connecting pipe 3. During the grain feeding process, the embedding block 222 of the connecting pipe 3 is embedded in the sealing groove 121. During the storage process, the embedding block 222 of the inclined wedge ring block 22 is embedded in the sealing groove 121. The sealing groove 121 limits the embedding block 222 to limit the connecting pipe 3 and the inclined wedge ring block 22, ensuring their stability, while increasing the contact area between them and improving the sealing effect during the grain feeding process and the storage process. Similarly, the embedding block 222 can be provided only on the bottom surface of the inclined wedge ring block 22 or only on the bottom surface of the connecting pipe 3. In this embodiment, on both the inner and outer sides of the bottom of the sealing groove 121, a third sealing member 122 is provided. The third sealing member 122 supports the two ends of the bottom surface of the embedding block 222 to prevent the embedding block 222 from tilting and affecting the airtightness of the granary. At the same time, multiple sealing measures are set to further improve the airtightness of the granary during the grain feeding process or the storage process. In this embodiment, the third sealing member 122 is an annular sealing strip. Similarly, three or more third sealing members 122 can be provided, or a ring-shaped sealing strip can be provided.

[0047] Please refer to Figures 7-10 As shown, further, on the inner side surface of the second sealing convex block 31, a bent guiding stop block 313 is fixed. The bent guiding stop block 313 includes a horizontal portion 3131 and a guiding portion 3132 which are connected to each other. The free end of the horizontal portion 3131 is connected to the top of the third inclined wedge surface 311. The horizontal portion 3131 corresponds to the top surface of the first sealing convex block 11. During the grain feeding process, the horizontal portion 3131 is in contact with the top surface of the first sealing convex block 11, effectively increasing the connection area between the second sealing convex block 31 and the first sealing convex block 11 and improving the sealing performance of the connection position between the grain feeding pipe 1 and the connecting pipe 3 during the grain feeding process. In this embodiment, on the bottom surface of the horizontal portion 3131, a second sealing member 3133 is fixed. Specifically, the second sealing member 3133 is an annular sealing strip. The horizontal portion 3131 and the top surface of the first sealing convex block 11 apply inward pressure to the second sealing member 3133 from both sides, further improving the sealing performance of the connection position between the grain feeding pipe 1 and the connecting pipe 3.

[0048] The guiding portion 3132 extends downward. The guiding portion 3132 cooperates with the inclined guiding surface 312 to guide the grain. Moreover, the guiding portion 3132 shields the top of the horizontal portion 3131 and the first sealing convex block 11 to prevent the grain from falling between them and affecting the grain feeding process.

[0049] Please refer to Figure 7 andFigure 8 As shown in the figure, in this embodiment, a sealing patch 223 is fixed on the second inclined wedge surface 221. The storage process has a longer span corresponding to the grain feeding process. By fixing the sealing patch 223 on the second inclined wedge surface 221 and using the gravity of the sealing cover 2 to apply a downward acting force to the sealing patch 223, the gap between the first inclined wedge surface 111 and the second inclined wedge surface 221 can be further blocked, improving the airtightness of the grain inlet during the storage process. Similarly, a sealing patch 223 can be provided on the third inclined wedge surface 311.

[0050] Please refer to Figure 1 and Figure 7 As shown in the figure, in this embodiment, the width of the first flange 12 is smaller than the widths of the second flange 23 and the third flange 32. The free ends of the second flange 23 and the third flange 32 both protrude from the first flange 12, enabling better driving of the sealing cover 2 and the connecting pipe 3 by the second flange 23 and the third flange 32 when switching between the grain feeding process and the storage process. In this embodiment, connecting channels 123 are provided on the first flange 12, the second flange 23, and the third flange 32, and a fixing member passes through the connecting channels 123 to be fixedly connected to the second flange 23 or the third flange 32. Specifically, the fixing member is a bolt. During the grain feeding process, the bolt passes through the connecting channels 123 of the first flange 12 and the third flange 32 to fix the first flange 12 and the third flange 32, ensuring the stability of the connecting pipe 3 during the grain feeding process and preventing the connecting pipe 3 from shifting and falling off due to vibration; during the storage process, the bolt passes through the connecting channels 123 of the first flange 12 and the second flange 23 to fix the first flange 12 and the second flange 23, ensuring the stability of the sealing cover 2 during the storage process and preventing the sealing cover 2 from shifting in position and affecting the airtightness of the granary.

[0051] Please refer to Figure 5 As shown in the figure, in this embodiment, the top surface of the plate body 21 is an inclined surface 212, which slopes downward from the center of the top surface to the four edges of the top surface. The inclined surface 212 of the plate body 21 is provided to prevent water accumulation on the top surface of the plate body 21, which may affect the waterproof performance of the plate body 21. In this embodiment, a counterweight 213 is fixed at the center of the bottom surface of the plate body 21. The counterweight 213 is located at the center of the bottom surface of the plate body 21, providing a vertically downward pulling force to the center of the bottom surface of the plate body 21, further enhancing the tightness of the fit between the first inclined wedge surface 111 and the second inclined wedge surface 221 during the storage process, thereby improving the airtightness of the granary.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A connection device for a grain inlet of a granary, characterized in that: Including feed pipe, sealing cover and connecting pipe; One end of the grain feeding pipe is connected to the granary, and the other end of the grain feeding pipe is provided with a first sealing protrusion, the outer side surface of the first sealing protrusion is provided with a first inclined wedge surface, and the outer side surface of the grain feeding pipe is provided with a first flange extending outward; The sealing cover comprises a plate body, an oblique wedge ring block and a second flange, wherein the oblique wedge ring block is arranged on the circumference of the plate body, and the second flange is arranged on the circumference of the oblique wedge ring block. A first sealing member is arranged on the bottom edge of the plate body, and the first sealing member corresponds to the top surface position of the first sealing protrusion. The inner side surface of the oblique wedge ring block is a second oblique wedge surface. A raised second sealing convex block is provided at the bottom of the inner side surface of the connecting pipe, a third inclined wedge surface is provided on the second sealing convex block, and a third flange is fixed on the outer side surface of the connecting pipe; The first beveled surface, the second beveled surface and the third beveled surface are positioned correspondingly and have the same inclination angle. The first flange fits the second flange or the third flange. A fixing piece is provided on the first flange and the fixing piece is fixedly connected to the second flange or the third flange.

2. The connecting device for the grain inlet of a granary according to claim 1, characterized in that: A sealing groove is provided on the top surface of the first flange, and an embedded block protruding outward is fixed on the bottom surface of the inclined wedge ring block and / or the bottom surface of the connecting pipe, and the embedded block is embedded in the sealing groove.

3. The connecting device for the grain inlet of a granary according to claim 1, characterized in that: A bending guide block is fixed on the inner side surface of the second sealing protrusion, and the bending guide block includes a horizontal portion and a guide portion connected to each other, the free end of the horizontal portion is connected to the top of the third inclined wedge surface, and the horizontal portion corresponds to the top surface position of the first sealing protrusion. The guide portion extends downward.

4. The connecting device for the grain inlet of a granary according to claim 3, characterized in that: A second sealing member is fixed on the bottom surface of the horizontal portion.

5. The connection device for the grain inlet of a granary according to claim 1, characterized in that: A sealing patch is fixed on the second inclined wedge surface.

6. The connection device for the grain inlet of a granary according to claim 1, characterized in that: The width of the first flange is smaller than the widths of the second flange and the third flange.

7. The connection device for the grain inlet of a granary according to claim 1, characterized in that: The first flange, the second flange and the third flange are all provided with connecting passages, and the fixing member passes through the connecting passages and is fixedly connected to the second flange or the third flange.

8. The connecting device for the grain inlet of a granary according to claim 1, characterized in that: The top surface of the plate body is an inclined surface, and the inclined surface is inclined downward from the center of the top surface to the edges around the top surface.

9. The connecting device for the grain inlet of a granary according to claim 1, characterized in that: A counterweight is fixed at the center of the bottom surface of the plate body.

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