Rapid ventilation device for rice storage

Abstract

The utility model discloses a quick ventilation device for rice storage, which relates to the technical field of rice storage and comprises a storage tank, a feed hopper and an exhaust pipe are fixed and communicated to the upper end of the storage tank, a rice outlet pipe is fixed and communicated to the lower end of the storage tank, a cover plate is arranged on the feed hopper, an electromagnetic valve is arranged on the rice outlet pipe, and an air distribution structure is mounted in the storage tank. The air distribution structure is annular, and the air outlet range of the air outlet end of the air distribution structure covers the inner section of the storage tank, the air distribution structure and the reciprocating lead screw are arranged, the air distribution structure distributes air fed by the air pump into the storage tank through the air outlet end, and the air outlet range of the air outlet end of the air distribution structure covers the inner section of the storage tank. And the air distribution structure reciprocates up and down, so that the fed air can be uniformly distributed in the storage tank along with the movement of the air distribution structure, and the original air in the storage tank is exhausted through the exhaust pipe to form a stable and uniform air flow channel capable of covering all rice in the storage tank.

Description

Technical Field

[0001] The utility model relates to the technical field of rice storage, and in particular to a rapid ventilation device for rice storage. Background Art

[0002] Ventilation is required during rice storage. The rice in traditional storage tanks is piled together and does not move. The ventilation quality of the wrapped rice is poor, and it is easy to deteriorate, affecting the storage quality. The air entering the storage tank cannot be treated. Due to different storage environments, impurities and temperature in the air can easily have adverse effects on the rice, affecting the storage quality.

[0003] In order to solve the above problems, a patent document with announcement number "CN221768790U" discloses a rapid ventilation device for rice storage, including a storage tank, a stirring assembly and an air treatment assembly. The stirring motor drives the main gear to rotate, the main gear drives the driven gear to rotate, the driven gear drives the mounting plate and the mounting column to rotate, the mounting column drives the convex stirring blade and the arc stirring ring to rotate, the rice is stirred, the contact efficiency between the rice and the air is increased, the poor ventilation quality of the wrapped rice is avoided, the deterioration occurs, the ventilation quality is improved, the storage quality is improved, the pump body is used to generate suction at one end of the air purification box, and the air is filtered and impurities are removed through air purification structures, such as filter plates and activated carbon purification plates, to avoid impurities in the air from contacting with the rice and inducing deterioration, and the temperature regulating structures in the temperature box, such as heating plates and semiconductor refrigeration plates, are used to heat and cool the air according to different regional humidity and different seasons to improve the storage quality of the rice.

[0004] In the above-mentioned prior art, although the rice in the storage tank can be disturbed by the disturbance structure to increase the contact efficiency between the rice and the air, the air is transported into the storage tank through a single tube in the middle. In order to ensure the ventilation effect, an air outlet is generally required to be provided somewhere in the storage tank to form an airflow. However, the air will flow directly to the air outlet from the position closest to the air outlet, and the formed airflow path is linear, which makes it difficult to cover all the rice in the storage tank and the ventilation effect is not good. Therefore, a rapid ventilation device for rice storage is needed. Utility Model Content

[0005] The purpose of the present application is to provide a rapid ventilation device for rice storage to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a rapid ventilation device for rice storage, comprising a storage tank, a feed hopper and an exhaust pipe are fixed and connected to the upper end of the storage tank, a rice outlet pipe is fixed and connected to the lower end of the storage tank, a cover plate is provided on the feed hopper, and a solenoid valve is provided on the rice outlet pipe;

[0007] An air distribution structure is installed in the storage tank. The air distribution structure is annular and the air outlet range of the air outlet end covers the inner cross section of the storage tank.

[0008] A reciprocating screw that drives the air distribution structure to reciprocate vertically is rotatably connected in the storage tank, and a servo motor that drives the reciprocating screw to rotate is also fixed on the upper end of the storage tank;

[0009] Among them, an air pump is fixed at the lower end of the storage tank, and the output end of the air pump is connected to the air distribution structure through an elastic air delivery hose.

[0010] Preferably, a sliding sleeve adapted to the thread of the reciprocating screw is slidably connected to the reciprocating screw;

[0011] A mounting ring is fixed in the middle of the air distribution structure, and the mounting ring is fixed to one side of the sliding sleeve through a slider;

[0012] A limit piece is arranged outside the reciprocating screw, and the limit piece is used to limit the circumferential rotation of the slider, so that the slider can only move vertically up and down.

[0013] Preferably, the limiting member includes a fixed sleeve, which is loosely sleeved on the outside of the reciprocating screw, and the upper and lower ends of the fixed sleeve are respectively fixed to the inner top wall and the inner bottom wall of the storage tank, and a sliding groove is provided on one side of the fixed sleeve for the mounting ring to slide vertically through.

[0014] Preferably, an elastic stop bar is further provided in the slide groove, and two elastic stop bars are provided, and the ends of the two elastic stop bars close to each other are fixed to the slider, and the ends of the two elastic stop bars away from each other are respectively fixed to the top of the slide groove and the bottom of the slide groove;

[0015] The two elastic blocking strips cover the gaps between the slider and the upper and lower ends of the slide slot.

[0016] Preferably, bearings are installed at both ends of the reciprocating screw, and the reciprocating screw is rotatably connected to the storage tank through the bearings;

[0017] The bearing at the lower end is located in a fixed sleeve, and the bearing at the upper end is embedded in the top of the storage tank.

[0018] Preferably, the air distribution structure comprises:

[0019] An air distribution ring tube, wherein a plurality of air distribution ring tubes are provided and the plurality of air distribution ring tubes have different diameters, and the plurality of air distribution ring tubes are coaxially arranged and sleeved in sequence from the inside to the outside;

[0020] An air nozzle is fixed to and connected with the air distribution ring pipe, a plurality of air nozzles are provided, and the plurality of air nozzles are evenly distributed in annular shapes along the pipe walls of the plurality of air distribution ring pipes;

[0021] Support connecting pipes, multiple support connecting pipes are also provided, the multiple support connecting pipes are scatteredly distributed along the central axis of the multiple air distribution ring pipes, and the multiple support connecting pipes are connected and fixed to the multiple air distribution ring pipes;

[0022] The outer wall of the mounting ring is fixed to the inner side of the air distribution ring tube with the smallest diameter, and the upper end of the elastic air delivery hose is fixed to the lower end of the air distribution ring tube with the smallest diameter.

[0023] In summary, the technical effects and advantages of the utility model are:

[0024] 1. In the utility model, through the arrangement of the air distribution structure and the reciprocating screw, when ventilation is needed in the storage tank, the staff only needs to turn on the servo motor and the air pump, so that the servo motor can drive the air distribution structure to move vertically back and forth through the reciprocating screw, so that the air distribution structure distributes the air delivered by the air pump in the storage tank through the air outlet end. Since the air outlet range of the air outlet end of the air distribution structure covers the inner cross-section of the storage tank, and the air distribution structure reciprocates up and down, the delivered air can be evenly distributed in the storage tank with the movement of the air distribution structure, and the original air in the storage tank is discharged through the exhaust pipe, forming a stable and uniform air flow channel that can cover all the rice in the storage tank.

[0025] 2. In the utility model, by setting the elastic baffle, the gap between the slider and the upper and lower ends of the slide groove can be blocked, so that the rice cannot enter the fixed sleeve, thereby preventing the rice from entering the fixed sleeve and hindering the rotation of the reciprocating screw and the sliding of the sleeve, thereby avoiding damage and ensuring that the air distribution structure can move up and down smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0028] Figure 2 It is a schematic cross-sectional structural diagram in this embodiment;

[0029] Figure 3 is a cross-sectional view of the fixed sleeve and the mounting ring in this embodiment;

[0030] Figure 4 for Figure 3 A magnified view of the structure at center;

[0031] Figure 5It is a schematic diagram of the three-dimensional structure of the air distribution structure and the air pump in this embodiment.

[0032] In the figure: 1. storage tank; 11. feed hopper; 12. grain outlet pipe; 13. exhaust pipe; 2. air distribution structure; 21. air distribution ring pipe; 22. air nozzle; 23. support connecting pipe; 3. reciprocating screw; 31. sliding sleeve; 32. bearing; 4. servo motor; 5. fixed sleeve; 51. slide groove; 6. air pump; 61. elastic air supply hose; 7. mounting ring; 71. slider; 8. elastic baffle. DETAILED DESCRIPTION

[0033] 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.

[0034] Example: Reference Figure 1-Figure 5 A rapid ventilation device for rice storage shown in the figure comprises a storage tank 1, a feed hopper 11 and an exhaust pipe 13 are fixed and connected to the upper end of the storage tank 1, a rice outlet pipe 12 is fixed and connected to the lower end of the storage tank 1, a cover plate is provided on the feed hopper 11, and a solenoid valve (not shown in the figure) is provided on the rice outlet pipe 12;

[0035] An air distribution structure 2 is installed in the storage tank 1. The air distribution structure 2 is annular and the air outlet range of the air outlet end covers the inner cross section of the storage tank 1.

[0036] A reciprocating screw 3 is rotatably connected in the storage tank 1 to drive the air distribution structure 2 to reciprocate vertically. A servo motor 4 is also fixed at the upper end of the storage tank 1 to drive the reciprocating screw 3 to rotate.

[0037] Among them, an air pump 6 is fixed at the lower end of the storage tank 1, and the output end of the air pump 6 is connected to the air distribution structure 2 through an elastic air delivery hose 61.

[0038] Based on the above structure, when ventilation is required in the storage tank 1, the staff only needs to turn on the servo motor 4 and the air pump 6, so that the servo motor 4 can drive the air distribution structure 2 to reciprocate vertically through the reciprocating screw 3, so that the air distribution structure 2 distributes the air sent by the air pump 6 into the storage tank 1 through the air outlet end. Since the air outlet range of the air outlet end of the air distribution structure 2 covers the inner cross-section of the storage tank 1, and the air distribution structure 2 reciprocates up and down, the air sent in can be evenly distributed in the storage tank 1 with the movement of the air distribution structure 2, and the original air in the storage tank 1 is discharged through the exhaust pipe 13, forming a stable and uniform air flow channel that can cover all the rice in the storage tank 1;

[0039] In addition, while the air distribution structure 2 is moving, it can also disturb the rice in the storage tank 1 to a certain extent, further ensuring the uniformity of air distribution after entering the storage tank 1, avoiding the accumulation of rice and the existence of ventilation dead corners, and ensuring the ventilation effect.

[0040] Furthermore, a sliding sleeve 31 is slidably connected to the reciprocating screw 3 and is threadably matched with the reciprocating screw 3;

[0041] A mounting ring 7 is fixed in the middle of the air distribution structure 2, and the mounting ring 7 is fixed to one side of the sliding sleeve 31 through a slider 71;

[0042] A limiter is disposed outside the reciprocating screw 3 , and the limiter is used to limit the circumferential rotation of the slider 71 , so that the slider 71 can only move vertically up and down.

[0043] The limiting member includes a fixed sleeve 5, which is loosely sleeved on the outside of the reciprocating screw 3. The upper and lower ends of the fixed sleeve 5 are respectively fixed to the inner top wall and the inner bottom wall of the storage tank 1. A sliding groove 51 is provided on one side of the fixed sleeve 5 for the mounting ring 7 to slide vertically through.

[0044] Through the arrangement of the reciprocating screw 3, the fixed sleeve 5 and the mounting ring 7, since the slider 71 is located in the slide groove 51 and the slider 71 is fixedly connected to the sleeve 31, the reciprocating screw 3 can drive the sleeve 31 to move up and down when it rotates, thereby driving the mounting ring 7 to reciprocate up and down, and finally achieving the purpose of driving the air distribution structure 2 to reciprocate up and down in the storage tank 1, and realizing the effect of uniform air distribution.

[0045] Furthermore, an elastic stop bar 8 is provided in the slide groove 51. Two elastic stop bars 8 are provided. The ends of the two elastic stop bars 8 close to each other are fixed to the slider 71, and the ends of the two elastic stop bars 8 far away from each other are respectively fixed to the top of the slide groove 51 and the bottom of the slide groove 51.

[0046] Among them, the two elastic baffles 8 cover the gap between the slider 71 and the upper and lower ends of the slide groove 51. The elastic baffles 8 are stackable and unfoldable long strips made of elastic materials (such as elastic cloth) commonly used in the prior art and suitable for this embodiment, which can meet the sliding requirements of the slider 71 while playing a shielding role.

[0047] By setting the elastic baffle 8, the gap between the slider 71 and the upper and lower ends of the slide groove 51 can be blocked, so that the rice cannot enter the fixed sleeve 5, thereby preventing the rice from entering the fixed sleeve 5 to hinder the rotation of the reciprocating screw 3 and the sliding of the sleeve 31, thereby avoiding damage and ensuring that the air distribution structure 2 can smoothly reciprocate up and down.

[0048] Furthermore, bearings 32 are installed at both ends of the reciprocating screw 3, and the reciprocating screw 3 is rotatably connected to the storage tank 1 through the bearings 32;

[0049] The bearing 32 at the lower end is located in the fixed sleeve 5 , and the bearing 32 at the upper end is embedded in the top of the storage tank 1 .

[0050] Furthermore, the air distribution structure 2 includes an air distribution ring tube 21, an air nozzle 22 and a supporting connecting tube 23. The air distribution ring tube 21 is provided in plurality and the plurality of air distribution ring tubes 21 have different diameters. The plurality of air distribution ring tubes 21 are coaxially arranged and sequentially sleeved from the inside to the outside.

[0051] The air nozzle 22 is fixed and connected to the air distribution ring pipe 21. A plurality of air nozzles 22 are provided, and the plurality of air nozzles 22 are evenly distributed along the pipe walls of the plurality of air distribution ring pipes 21.

[0052] A plurality of supporting connecting pipes 23 are also provided, and the plurality of supporting connecting pipes 23 are scatteredly distributed along the central axis of the plurality of air distribution ring pipes 21, and the plurality of supporting connecting pipes 23 are connected to and fix the plurality of air distribution ring pipes 21;

[0053] The outer wall of the mounting ring 7 is fixed to the inner side of the air distribution ring tube 21 with the smallest diameter, and the upper end of the elastic air delivery hose 61 is fixed to the lower end of the air distribution ring tube 21 with the smallest diameter.

[0054] The air transported by the elastic air supply hose 61 first enters the air distribution ring tube 21 with the smallest diameter, and flows to other air distribution ring tubes 21 through the supporting connecting tube 23. Finally, the air is ejected from the air nozzles 22 on the multiple air distribution ring tubes 21, thereby evenly supplying air to the cross-section of the rice in the storage tank 1, achieving a good and uniform ventilation effect.

[0055] Working principle of the utility model: during daily use, when ventilation is required in the storage tank 1, the staff only needs to turn on the servo motor 4 and the air pump 6, so that the servo motor 4 can drive the sleeve 31 to move up and down through the reciprocating screw 3; and drive the mounting ring 7 to reciprocate up and down, so as to achieve the purpose of driving the air distribution structure 2 to reciprocate up and down in the storage tank 1. The air transported by the elastic air supply hose 61 first enters the air distribution ring tube 21 with the smallest diameter, and flows to other air distribution ring tubes 21 through the supporting connecting tube 23. Finally, the air is ejected by the air nozzles 22 on the multiple air distribution ring tubes 21, so as to evenly supply air to the rice in the storage tank 1 on the cross section, and the air distribution structure 2 reciprocates up and down, so the air supplied can be evenly distributed in the storage tank 1 with the movement of the air distribution structure 2, and the original air in the storage tank 1 is discharged through the exhaust pipe 13, forming a stable and uniform air flow channel that can cover all the rice in the storage tank 1.

[0056] In addition, while the air distribution structure 2 is moving, it can also disturb the rice in the storage tank 1 to a certain extent, further ensuring the uniformity of air distribution after entering the storage tank 1, avoiding the accumulation of rice and the existence of ventilation dead corners, and ensuring the ventilation effect.

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A rapid ventilation device for rice storage, comprising a storage tank (1), wherein a feed hopper (11) and an exhaust pipe (13) are fixed to and communicated with the upper end of the storage tank (1), and a rice outlet pipe (12) is fixed to and communicated with the lower end of the storage tank (1), wherein a cover plate is provided on the feed hopper (11), and an electromagnetic valve is provided on the rice outlet pipe (12), wherein: An air distribution structure (2) is installed in the storage tank (1); the air distribution structure (2) is annular and the air outlet range of the air outlet end covers the inner cross section of the storage tank (1); A reciprocating screw (3) is rotatably connected inside the storage tank (1) and drives the air distribution structure (2) to vertically reciprocate. A servo motor (4) is also fixed to the upper end of the storage tank (1) and drives the reciprocating screw (3) to rotate. Wherein, an air pump (6) is fixed at the lower end of the storage tank (1), and the output end of the air pump (6) is connected to the air distribution structure (2) via an elastic air delivery hose (61).

2. A rapid ventilation device for rice storage according to claim 1, characterized in that: The reciprocating screw (3) is slidably connected to a sliding sleeve (31) adapted to the thread of the reciprocating screw (3); A mounting ring (7) is fixed in the middle of the air distribution structure (2), and the mounting ring (7) is fixed to one side of the sliding sleeve (31) via a sliding block (71); A limiting member is arranged on the outside of the reciprocating screw (3), and the limiting member is used to limit the circumferential rotation of the slider (71), so that the slider (71) can only move vertically up and down.

3. A rapid ventilation device for rice storage according to claim 2, characterized in that: The limiting member comprises a fixed sleeve (5), the fixed sleeve (5) being loosely sleeved on the outside of the reciprocating screw (3), the upper and lower ends of the fixed sleeve (5) being respectively fixed to the inner top wall and the inner bottom wall of the storage tank (1), and a slide groove (51) for the mounting ring (7) to vertically slide through is provided on one side of the fixed sleeve (5).

4. A rapid ventilation device for rice storage according to claim 3, characterized in that: An elastic stop bar (8) is also provided in the slide groove (51), and two elastic stop bars (8) are provided, and the ends of the two elastic stop bars (8) that are close to each other are fixed to the slider (71), and the ends of the two elastic stop bars (8) that are away from each other are respectively fixed to the top of the slide groove (51) and the bottom of the slide groove (51); The two elastic blocking strips (8) cover the gap between the slider (71) and the upper and lower ends of the slide groove (51).

5. A rapid ventilation device for rice storage according to claim 1, characterized in that: Bearings (32) are installed at both upper and lower ends of the reciprocating screw (3), and the reciprocating screw (3) is rotatably connected to the storage tank (1) via the bearings (32); The bearing (32) at the lower end is located in the fixed sleeve (5), and the bearing (32) at the upper end is embedded in the top of the storage tank (1).

6. A rapid ventilation device for rice storage according to claim 2, characterized in that: The air distribution structure (2) comprises: An air distribution ring tube (21), wherein a plurality of the air distribution ring tubes (21) are provided and the plurality of air distribution ring tubes (21) have different diameters, and the plurality of air distribution ring tubes (21) are coaxially arranged and sleeved in sequence from the inside to the outside; An air nozzle (22), the air nozzle (22) being fixed to and connected to the air distribution ring tube (21), a plurality of the air nozzles (22) being provided, and the plurality of air nozzles (22) being evenly distributed in an annular manner along the tube walls of the plurality of air distribution ring tubes (21); A supporting connecting tube (23), wherein a plurality of the supporting connecting tubes (23) are also provided, and the plurality of the supporting connecting tubes (23) are distributed in a scattered manner along the central axis of the plurality of air distribution ring tubes (21), and the plurality of the supporting connecting tubes (23) are connected to and fix the plurality of air distribution ring tubes (21); The outer wall of the mounting ring (7) is fixed to the inner side of the air distribution ring tube (21) with the smallest diameter, and the upper end of the elastic air delivery hose (61) is fixed to the lower end of the air distribution ring tube (21) with the smallest diameter.

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