JP3159988U - Ventilator for cereal storage bags - Google Patents

Abstract

The present invention provides a ventilation device for a cereal storage bag in which an intake device is detachable to increase the efficiency of a drying operation. In a ventilator for a cereal storage bag, a large number of pores 2 having a size through which a cereal cannot pass over a predetermined length are provided in a peripheral wall of a pipe 1 having a fixed length with an upper end opened. The lower end of the pipe forms a tapered portion 3 that is tapered and starts from the side slope of the tapered portion, and the spiral screw blades 4 are continuously provided in the middle of the peripheral wall surface of the pipe to store the grains. In the central portion of the storage bag, the upper end opening of the pipe protrudes upward and can be deeply embedded substantially at right angles, and the intake device 6 can be attached to and removed from the upper end opening of the pipe via an appropriate attachment / detachment mechanism. Install freely. [Selection] Figure 1

Description

  This invention relates to a ventilator that prevents stuffiness caused by internal temperature rise of cereals when grains such as ginger harvested by a combine are directly stored in a large sized grain storage bag.

  In recent years, when harvesting ginger and the like by a combine, instead of a conventional cereal storage bag with a storage capacity of 30 to 40 kg, 700 to 1,000 kg of ginger stored in a tank built in the combine is used. A large grain storage bag that can be transferred at once is used to improve harvest efficiency.

  And as this cereal storage bag, a bag having a diameter of about 1.2 m and a height of about 1.3 m is widely used. In addition, the storage bag filled with the harvested ginger is directly taken into a drier or a local rice center, and then stored and dried.

  In general, the moisture content of the cut ginger is as high as around 28%, and the storage bag containing ginger containing such a large amount of moisture can hardly obtain internal ventilation. In some cases, it may be forced to wait for several hours to dry while being stored in the storage bag. During this time, the ginger at the center of the storage bag will be melted due to internal temperature rise and discolored when it is polished. In other words, it causes germination and sometimes germinates, resulting in a significant reduction in product value.

  Therefore, for the purpose of solving this problem, the inventor of the present application has proposed a ventilator composed of a perforated pipe as disclosed in Patent Document 1. That is, a large number of pores of a size that a ginger cannot pass through are penetrated through a peripheral wall of a pipe having a predetermined length with an upper end opened and a tapered end at a lower end. The ventilator was constructed so as to be deeply embedded in a state of protruding upward from the bottom of the central part of the bag, promoting ventilation inside the storage bag where stuffiness is likely to occur, and suppressing temperature rise It is. In addition, a fan for air suction is attached to the upper end opening of the pipe to forcibly exhaust the humid air trapped in the storage bag.

  The ventilator with the above structure is a state where the upper end opening is exposed and is deeply embedded in the central portion of the storage bag filled with ginger, so that the air in the portion where the temperature rise is high and moisture transpiration is active is piped. It can be introduced from the pores of the peripheral wall and discharged to the outside by natural convection or via a fan, and the sagging of this part can be reliably suppressed.

Japanese Utility Model Publication No. 7-12885

  However, the ventilator described in Patent Document 1 has a tapered tapered surface at the lower end, or a small screw blade attached to only the tapered surface, so that it accommodates a large amount of ginger. When trying to insert the tip from the opening surface of the bag, the tip is embedded relatively easily, but as it advances while rotating, the progress of the pipe is hindered by the resistance of the pipe peripheral wall. It took a lot of effort to completely embed the bottom.

  In this case, it is preferable that the ventilator is embedded in a direction that is nearly vertical, but in the conventional one, the rotary handle has a pair of horizontal handles in the horizontal direction, that is, two in the direction of 180 degrees relative to each other. Since the handle bar only protrudes, it must be rotated 180 degrees at a time, and the rotation operation is troublesome and requires skill to maintain the vertical direction at the same time. there were.

  For this reason, as shown in FIG. 5, as an aid to the progress, a screw blade is provided only on the peripheral wall of the pipe, but in this case, since there is no blade on the tapered surface of the tip, Blur is likely to occur in the traveling direction, and it is difficult to embed while maintaining the vertical direction.

  Furthermore, when there are many storage bags waiting to be dried, it is practical to prepare a large number of ventilators of this type with a fan attached to the upper end opening of the pipe. It was also uneconomical.

  The present invention has been devised in view of the above-mentioned problems, and it is possible to embed a pipe vertically in the central portion of the storage bag with a simple operation and surely. is there. Furthermore, the present invention proposes a ventilator for a cereal storage bag that can be economically and efficiently dried by reducing the number of fans to be used when drying a large number of storage bags.

  In order to solve the above-mentioned problems, the present invention is a ventilation device in a cereal storage bag. And the lower end of the pipe forms a tapered portion which is tapered and starts from the side slope of the tapered portion and is continuously provided with helical screw blades in the middle of the peripheral wall surface of the pipe. Can be buried deeply at a substantially right angle with the upper end opening of the pipe protruding upward, and the upper end opening of the pipe can be sucked through an appropriate attachment / detachment mechanism. A means of detachably attaching the device was adopted. With such a configuration, the pipe can be deeply embedded at a right angle in the central portion of the storage bag, and when the intake device is attached and driven, the air in the storage bag is forcibly sucked and discharged.

  The above intake device employs means that is an intake device having an air intake port at the lower end, a sirocco-type fan having a large number of rotor blades, a drive motor thereof, and a lateral air discharge port. did.

  And the attachment / detachment mechanism of the intake device described above is such that the diameter of the air intake port at the lower end of the intake device is slightly smaller than the diameter of the upper end opening of the pipe, and is fitted into the opening. Adopted means.

  Further, a means is adopted in which the attachment / detachment mechanism of the intake device is configured such that the air intake port at the lower end of the intake device is reduced in diameter into a taper shape and is inserted into and fitted into the pipe opening.

  In addition, the intake device attachment / detachment mechanism has an L-shape in which a locking pin protrudes from the outer periphery of the air intake port at the lower end of the intake device, and the locking pin engages with the upper end edge of the pipe. The engagement groove is provided, and the unit is engaged with each other by rotating it by a slight angle.

  Further, the above-described intake device attaching / detaching mechanism employs means in which flanges are provided on the lower surface of the air intake port at the lower end of the intake device and the upper end edge of the pipe, respectively, and are fixed with bolts and nuts.

  By these attachment / detachment mechanisms, the intake device can be freely attached and detached, and the working efficiency of drying is improved.

  On the other hand, a means that the tip angle of the tapered portion is an acute angle was also adopted.

  Thereby, it becomes easy to embed the pipe in the cereal stored in the storage bag.

  In the ventilator of the present invention according to the above configuration, since the intake device for discharging the air trapped in the storage bag is detachably attached, when there are a large number of storage bags waiting to be dried, individual storage bags In this case, only a pipe is buried, and an air intake device is sequentially attached to perform a drying operation. Therefore, it is possible to reduce the cost of the entire drying device without requiring a large number of air intake devices. Moreover, since it is not necessary to prepare many power supply apparatuses, it is economical also in that respect.

  In addition, since the intake device is detachable, when the pipe is embedded in the storage bag, the heavy intake device can be removed, so that the embedment work is easy and efficient work can be performed. The excellent effect of being able to be expected can be expected.

  Furthermore, the taper part which taper-closed the lower end of the pipe is formed, and since the spiral screw blade is continuously provided in the middle of the peripheral wall surface of the pipe starting from the side slope of this taper part, In this case, the screw blades of the tapered portion can advance the pipe straightly acting synergistically with the acute angle portion. Therefore, since the pipe can be embedded in the central part of the storage bag, the ventilation action acts evenly on the entire storage bag, preventing the occurrence of internal stuffiness, and reliably preventing cereal discoloration and cracking. In addition, a special effect of maintaining product value can be expected.

It is a perspective view which shows an example of the ventilation apparatus in the grain storage bag which concerns on this invention. It is a perspective view which shows the usage example of this apparatus. It is a fragmentary perspective view which shows the example of the attachment / detachment mechanism of an intake device. It is explanatory drawing which shows the example in the case of using for a some storage bag. The aspect of the screw blade of the conventional drying apparatus is shown.

  Hereinafter, a preferred embodiment of a ventilation device in a cereal storage bag according to the present invention will be described with reference to the accompanying drawings.

  In the overall perspective view shown in FIG. 1, 1 is a pipe made of a metal or a hard synthetic resin, and a large number of pores 2, 2... It is penetrating. The pore diameter of the pore 2 is set to such a size that the grain cannot pass through depending on the type of grain (eg, ginger) stored in the storage bag (B). Moreover, the area | region of the pore 2 provided in the surrounding wall of the pipe 1 shall be provided over the length more than the insertion depth with respect to the cereals accommodated in a storage bag (B).

  Reference numeral 3 denotes a tapered portion which is formed at the lower end of the pipe 1 and is closed in a tapered shape, and the tip end angle thereof is an acute angle which is considerably smaller than 90 degrees. Reference numeral 4 denotes a helical screw blade, which is provided continuously from the side slope of the tapered portion 3 to the middle of the peripheral wall surface of the body portion of the pipe 1. The reason why the acute tapered portion 3 is formed at the lower end of the pipe 1 in this way is to facilitate insertion when the pipe 1 is inserted into the center portion of the upper surface of the cereal stored in the storage bag (B). Further, the reason why the screw blades 4 are provided in a wide range is to allow the screw blades 4 to move deeply while rotating in the vertical direction without the tip being shaken. That is, the screw blades 4 of the taper portion 3 act synergistically with the acute angle portion to cause the pipe 1 to advance straight, and the screw blades 4 on the body surface reliably advance the pipe 1 by rotation. It has an effect.

  Reference numerals 5, 5,... Are pipe rotation handles that are detachably attached to the vicinity of the upper end of the pipe, and are provided with four protruding at least at an angle of 90 degrees. The length of each handle is preferably at least 2 to 3 times the length of the pipe 1 in consideration of operability. As a result, a large rotational torque can be obtained at the time of operation, and the pipe 1 can be inserted accurately and easily with a small force since it only needs to be rotated 90 degrees at a time. However, such a configuration is adopted as necessary, and two handles may be provided at an angle of 180 degrees as in the prior art.

  An intake device 6 is attached to the upper end opening 1 a of the pipe 1. This intake device is detachably attached via an appropriate attachment / detachment mechanism, but is attached so that the inside of the pipe 1 is in a sealed state when attached. In the figure, an air intake device comprising an air intake 6a at the lower end, a sirocco fan having a large number of rotor blades, its drive motor, and a lateral air discharge port is used. The diameter of the intake port 6a is made slightly smaller than the diameter of the upper end opening of the pipe, and is attached so as to be inserted into the opening. The intake device 6 forcibly exhausts the air in the pipe 1 to improve the ventilation function. Note that the air intake port 6a at the lower end of the intake device may be tapered to be indented and fitted into the pipe opening.

  In addition, although the diameter of the said pipe 1 has the advantage that it will be easy to insert if it is a comparatively thin thing of about 5-10 cm, for example, it may be set as the diameter beyond it, and it does not specifically limit it. It can select suitably according to the magnitude | size of a storage bag. Further, the intake device 6 is not limited to the illustrated sirocco type, but may be any device that can forcibly discharge the air in the pipe. Further, the intake device 6 may reverse the drive motor by, for example, a switch operation, forcibly send outside air into the pipe, and allow air to flow outward from the inside of the storage bag.

  In addition to the illustrated method, for example, as shown in FIG. 3 (A), the intake device 6 is detachably attached to the outer periphery of the air intake port at the lower end of the intake device. In addition, an L-shaped engagement groove that engages with the locking pin may be provided at the upper end edge of the pipe, and the pipes may be engaged with each other by being rotated by a slight angle. Alternatively, as shown in FIG. 5B, flanges may be provided on the lower surface of the air intake port at the lower end of the intake device and the upper end edge of the pipe, and fixed with bolts and nuts. In short, as the attachment / detachment mechanism, various conventionally known structures can be appropriately employed as necessary, and any structure can be used as long as the inside of the pipe is in a sealed state and can be easily attached / detached.

  The ventilator according to the present invention having the above-described configuration is inserted and embedded in the vertical direction by rotating the handle 5 in the central portion of the upper surface of the cereal stored in the storage bag (B). When the intake device 6 is operated, wet air at the central portion of the storage bag (B) is introduced into the pipe 1 from the pores 2 of the peripheral wall of the pipe 1 and is forcibly sucked and discharged by the intake device 6. Is. As a result, internal stuffiness caused by an increase in the temperature of cereals can be reliably prevented, and a special effect of not impairing the commercial value can be obtained. Moreover, as above-mentioned, a drive motor can be reversed and external air can be sent in a storage bag and a grain can also be dried.

  Further, in the present invention, since the intake device 6 is detachably attached, as shown in FIG. 4, when there are a large number of storage bags waiting to be dried, only the pipe 1 is included in each storage bag. Can be dried by natural convection, and the suction device 6 can be attached sequentially to perform forced suction and exhaust.

  In this way, the cost of the entire ventilator can be reduced because only one intake device needs to be prepared as compared to providing an intake device for each individual pipe. Furthermore, it does not require a large amount of power source, so that is also economical. Moreover, since only a light-weight pipe can be inserted and embedded in the grains of the storage bag without attaching a relatively heavy intake device, there is also an advantage that the operation becomes easy.

1 Pipe 2 Fine pore 3 Taper 4 Screw blade 5 Handle 6 Air intake device

Claims (7)

  A large number of pores with a size that prevents the passage of cereals over a predetermined length are provided in the peripheral wall of a fixed-length pipe whose upper end is open, and the lower end of the pipe forms a tapered portion that is tapered. Then, starting from the side slope of the taper portion, a spiral screw blade is continuously provided in the middle of the peripheral wall surface of the pipe, and the upper end opening of the pipe is directed upward in the central portion of the cereal storage bag storing cereals. A ventilator for a cereal storage bag, characterized in that it can be deeply embedded substantially perpendicularly in a protruding state, and an air intake device is detachably attached to an upper end opening of the pipe via an appropriate attachment / detachment mechanism.   2. The cereal according to claim 1, wherein the intake device is an intake device comprising an air intake port at a lower end, a sirocco fan having a large number of rotor blades, a drive motor thereof, and a lateral air discharge port. Ventilation device in the storage bag.   2. The intake device attaching / detaching mechanism is configured such that a diameter of an air intake port at a lower end of the intake device is slightly smaller than a diameter of an upper end opening of the pipe, and is fitted into the opening. Or the ventilation apparatus in the grain storage bag of Claim 2.   3. The intake / removal mechanism of the intake device according to claim 1 or 2, wherein the air intake port at the lower end of the intake device is reduced in diameter in a taper shape so as to be fitted into the pipe opening. Ventilator in cereal storage bags.   The intake device attachment / detachment mechanism has an L-shaped engagement such that a locking pin projects from the outer periphery of the air intake port at the lower end of the intake device, and the locking pin engages with the upper end edge of the pipe. The ventilating device for a grain storage bag according to claim 1 or 2, wherein a groove is provided and the grooves are engaged with each other by being rotated by a slight angle.   3. The intake device attaching / detaching mechanism according to claim 1 or 2, wherein flanges are provided on the lower surface of the air intake port at the lower end of the intake device and the upper end edge of the pipe, respectively, and are fixed with bolts and nuts. Ventilator in cereal storage bags.   The ventilation device for a grain storage bag according to any one of claims 1 to 6, wherein a tip end angle of the tapered portion is an acute angle.

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