Mildew-proof ventilation pipe for rice storage bin

Abstract

The utility model discloses a mildew-proof ventilating pipe for a rice storage bin, which comprises a ventilating pipe, a plurality of sliding sleeves are arranged on the ventilating pipe at intervals, a ventilating hood is mounted in each sliding sleeve, and each ventilating hood is composed of a hemispherical air dispersing part and a columnar sealing part; the cylindrical sealing part is inserted into the sliding sleeve to slide, a hollow sealing ring is arranged in the cylindrical sealing part, an annular support is installed in the ventilation pipe, a positioning ring is arranged on the edge of the annular support in a protruding mode, and a reset spring is additionally installed between the inner side of the positioning ring and the hollow sealing ring. A supporting plate connected with the two ends of the positioning ring is arranged in the center of the positioning ring, the center of the supporting plate is perpendicularly connected with a supporting rod and extends into the hollow sealing ring, a sealing plate is connected to the tail end of the supporting rod, and positioning plates are symmetrically and perpendicularly arranged on the two sides of the supporting plate. The ventilation height can be automatically adjusted, pressurized air supply airflow of the ventilation pipe can only be discharged from the ventilation hood in the rice, and therefore manual adjustment is conducted under the condition that the humidity is large or the temperature is high.

Description

Technical Field

[0001] The invention relates to a ventilation pipe, in particular to a mildew-proof ventilation pipe used in a rice storage bin. Background Art

[0002] In order to prevent the rice from getting moldy, many large rice storage warehouses insert porous ventilation pipes into the rice so that the airflow inside the rice can be exchanged with the outside, thereby expelling moisture and lowering the temperature to prevent the rice from getting moldy.

[0003] In order to ventilate different positions in the existing ventilation duct, ventilation holes can only be opened on the entire peripheral wall. This structure does not have any problems under natural ventilation. However, in extreme weather conditions, such as when the humidity inside the rice is high and the humidity outside is also very high, or when the temperature inside the rice is high and the temperature outside is also very high, it is difficult for natural ventilation to be effective.

[0004] The best way at this time is to manually process the airflow and then pressurize it into the ventilation pipe. However, the ventilation pipe with the existing structure is only effective when the rice fills all the ventilation holes. If the rice does not fill all the ventilation holes, the pressurized airflow will be discharged from the unfilled ventilation holes, so that only little or no airflow enters the interior of the rice. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a mildew-proof ventilation pipe for a rice storage bin.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A mildew-proof ventilation pipe for a rice storage bin comprises a ventilation pipe, a plurality of sliding sleeves are arranged at intervals on the ventilation pipe, a ventilation hood is installed in the sliding sleeve, and the ventilation hood consists of a hemispherical air dispersion part and a columnar sealing part; the columnar sealing part is inserted into the sliding sleeve for sliding, a hollow sealing ring is arranged inside the columnar sealing part, an annular bracket is installed in the ventilation pipe, a positioning ring is arranged on the edge of the annular bracket, and a reset spring is installed between the inner side of the positioning ring and the hollow sealing ring; the positioning ring is provided with a support plate connecting the two ends thereof through the center thereof, the center of the support plate is vertically connected to a support rod extending into the inner side of the hollow sealing ring, a sealing plate is connected to the end of the support rod, and positioning plates are also symmetrically and vertically arranged on both sides of the support plate.

[0008] Furthermore, the support plate, the support rod and the positioning plate are all arranged vertically.

[0009] Furthermore, a groove is provided on one side edge of the sealing plate close to the hollow sealing ring, and a sealing gasket is installed in the groove.

[0010] Furthermore, the sliding sleeves are symmetrically arranged on both sides of the ventilation pipe at the same height and the ventilation hood is installed, and the positioning rings, return springs, support rods, sealing plates and positioning plates are symmetrically arranged on both sides of the annular bracket.

[0011] Furthermore, the cross section of the ventilation pipe is a flat rectangle, and the ventilation hood is installed on a wider side thereof.

[0012] Furthermore, fixing seats are symmetrically arranged on both sides of the annular bracket, and the fixing seats are welded to the pipe wall of the ventilation pipe or connected with bolts.

[0013] Furthermore, the hemispherical diffuser is made of metal foam material, and the remaining parts are made of aluminum alloy material.

[0014] The advantages of the present invention are:

[0015] The present invention is different from the general ventilation pipe in that the ventilation height of the present invention can be automatically adjusted. When the ventilation pipe is submerged in the rice, the pressure of the rice will cause the ventilation hood to open for ventilation, while the unsubmerged part will automatically close the ventilation hood. In this way, the ventilation pipe can be pressurized to supply air in any warehouse situation, and the air flow will only be discharged from the ventilation hood inside the rice, so that artificial adjustment can be performed under high humidity or high temperature conditions to reduce the humidity or temperature and prevent the rice from getting moldy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 It is a cross-sectional view of the present invention;

[0018] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0019] In the figure, 1-ventilation pipe, 2-ventilation cover, 21-hemispherical air diffuser, 22-columnar sealing portion, 23-hollow sealing ring, 3-annular bracket, 31-positioning ring, 32-fixing seat, 4-support plate, 5-positioning plate, 6-support rod, 61-sealing plate, 611-card slot, 612-sealing gasket, DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] like Figure 1-3 As shown:

[0022] A mildew-proof ventilation pipe 1 for a rice storage bin comprises a ventilation pipe 1, wherein a plurality of sliding sleeves are arranged at intervals on the ventilation pipe 1, a ventilation hood 2 is installed in the sliding sleeve, and the ventilation hood 2 is composed of a hemispherical air dispersion portion 21 and a columnar sealing portion 22; the columnar sealing portion 22 is inserted into the sliding sleeve for sliding, a hollow sealing ring 23 is arranged inside the columnar sealing portion 22, an annular bracket 3 is installed in the ventilation pipe 1, a positioning ring 31 is arranged on the edge of the annular bracket 3, and a reset spring is installed between the inner side of the positioning ring 31 and the hollow sealing ring 23; the positioning ring 31 is provided with a support plate 4 connecting the two ends thereof through the center thereof, a support rod 6 is vertically connected to the center of the support plate 4 and extends into the inner side of the hollow sealing ring 23, a sealing plate 61 is connected to the end of the support rod 6, and positioning plates 5 are also symmetrically and vertically arranged on both sides of the support plate 4.

[0023] Working principle of the present invention:

[0024] When used for mildew prevention of rice storage bins, the mildew prevention ventilation pipe 1 is pre-installed vertically in the barn, the bottom is closed, and the top is open for natural ventilation. When the humidity is high, dry hot air is injected through the mildew prevention ventilation pipe 1, and when the internal temperature is high, dry cold air is injected, thereby preventing the moisture in the rice from being unable to be exhausted, the temperature from rising, and causing mildew.

[0025] Unlike the general ventilation pipe 1, the ventilation height of the present invention can be automatically adjusted. When the ventilation pipe 1 is submerged in rice, the rice will squeeze the ventilation hood 2, and the hemispherical air dispersion part 21 of the ventilation hood 2 can change the pressure into a thrust into the pipe, so that the ventilation hood 2 compresses the reset spring. At this time, the hollow sealing ring 23 and the sealing plate 61 will be separated, so that the airflow can enter the ventilation hood 2 from the ventilation pipe 1, thereby exchanging the airflow inside the rice. The positioning plate 5 limits the entry amount of the ventilation hood 2 to avoid separation from the sliding sleeve or transition to the annular bracket 3, thereby affecting ventilation.

[0026] As the rice is taken, the ventilation hood 2 at the top leaks out one by one. After the pressure disappears, the ventilation hood 2 pops out under the action of the reset spring, and the sealing plate 61 and the hollow sealing ring 23 are sealed again (a groove 611 can be provided on the edge of the sealing plate 61 on one side near the hollow sealing ring 23, and a sealing gasket 612 is installed in the groove 611 to improve the sealing performance), so that the unsubmerged part will not leak. In this way, the ventilation pipe 1 can be pressurized to supply air under any warehouse position, and the airflow will only be discharged from the ventilation hood 2 inside the rice, so that artificial adjustment can be performed under high humidity or high temperature conditions to reduce the humidity or temperature and prevent the rice from getting moldy.

[0027] In order to minimize the influence on the gas flow in the tube, the support plate 4, the support rod 6 and the positioning plate 5 are all arranged vertically to reduce the gas resistance.

[0028] As an optimized design, sliding sleeves are symmetrically arranged on both sides of the ventilation pipe 1 at the same height and the ventilation hood 2 is installed. Positioning rings 31, return springs, support rods 6, sealing plates 61 and positioning plates 5 are symmetrically arranged on both sides of the annular bracket 3. Compared with arranging exhaust on both sides at one height, it is of course also possible to adopt a method of staggered arrangement at different heights on different sides.

[0029] In order to facilitate the installation of the ventilation hood 2 and the internal annular bracket 3, the cross-section of the ventilation pipe 1 is a flat rectangle, and the ventilation hood 2 is installed on its wider side. At the same time, fixed seats 32 are symmetrically arranged on both sides of the annular bracket 3, and the fixed seats 32 are welded to the pipe wall of the ventilation pipe 1 or connected by bolts.

[0030] Considering that the hemispherical air diffuser 21 needs to withstand greater pressure, especially the bottom layer, it is recommended that the hemispherical air diffuser 21 be made of metal foam material, and the rest of the parts be made of aluminum alloy. In this way, the pores are dense, the rice will not pass through the hemispherical air diffuser 21, and the strength can also be guaranteed.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A mildew-proof ventilation pipe for a rice storage bin, characterized in that: It includes a ventilation pipe, on which a plurality of sliding sleeves are arranged at intervals, a ventilation hood is installed in the sliding sleeve, and the ventilation hood consists of a hemispherical air dispersion part and a columnar sealing part; the columnar sealing part is inserted into the sliding sleeve and slides, a hollow sealing ring is arranged inside the columnar sealing part, an annular bracket is installed in the ventilation pipe, a positioning ring is provided on the edge of the annular bracket, and a reset spring is installed between the inner side of the positioning ring and the hollow sealing ring; the positioning ring is provided with a support plate connecting its two ends through the center, the center of the support plate is vertically connected to a support rod extending into the inner side of the hollow sealing ring, a sealing plate is connected to the end of the support rod, and positioning plates are symmetrically and vertically arranged on both sides of the support plate.

2. The mildew-proof ventilation pipe for a rice storage bin according to claim 1, characterized in that: The support plate, support rod and positioning plate are all arranged vertically.

3. The mildew-proof ventilation pipe for a rice storage bin according to claim 2, characterized in that: The sealing plate is provided with a clamping groove on one side edge close to the hollow sealing ring, and a sealing gasket is installed in the clamping groove.

4. The mildew-proof ventilation pipe for a rice storage bin according to claim 2, characterized in that: Sliding sleeves and ventilation hoods are symmetrically arranged on both sides of the ventilation pipe at the same height, and positioning rings, reset springs, support rods, sealing plates and positioning plates are symmetrically arranged on both sides of the annular bracket.

5. The mildew-proof ventilation pipe for rice storage bin according to claim 2, characterized in that: The cross section of the ventilation pipe is a flat rectangle, and the ventilation hood is installed on a wider side of the ventilation pipe.

6. The mildew-proof ventilation pipe for a rice storage bin according to claim 2, characterized in that: Fixed seats are symmetrically arranged on both sides of the annular bracket, and the fixed seats are welded to the pipe wall of the ventilation pipe or connected with bolts.

7. The mildew-proof ventilation pipe for a rice storage bin according to claim 2, characterized in that: The hemispherical air diffuser is made of metal foam material, and the remaining parts are made of aluminum alloy material.

Images