KR20150001949A - Insecticidal Chamber System of Low Oxygen Concentration - Google Patents

Abstract

The present invention relates to a large scale insecticidal chamber system of low oxygen concentration comprising: an operation chamber (3) killing harmful insects in an incoming object by rarefying the oxygen level in the interior space (S); an insecticide container (5) rarefying the oxygen level in the interior space (S) by injecting an insecticide into the interior space (S); an insecticide supply control unit (7) controlling a supply of the insecticide injected into the operation chamber (3) from the insecticide container (5); an air supply/exhaust means (9) sucking the outdoor air into the interior space (S) or discharging the insecticide in the interior space (S) to the outside; and a thermo-hygrostat (10) maintaining the operation condition in the interior of the operation chamber (3) according to an order of the insecticide supply control unit (7), thereby killing a large amount of harmful insects in the objects such as cultural assets or removing harmful insects in a large object conveniently, safely, and smoothly.

Description

[0002] Insecticidal Chamber System of Low Oxygen Concentration [0003]

The present invention relates to a large-capacity, low-oxygen concentration insect chamber system, and more particularly, to a large-capacity, low-oxygen concentration insecticide chamber system capable of more easily and effectively insecting large- ≪ / RTI >

In general, cultural assets that can be corrupted, such as high-rise buildings and old books, are damaged or corrupted by insects or harmful bacteria, so they should be periodically insecticidal. In particular, cultural properties of organic materials such as wood, paper, or fiber are one of the potential damage factors due to the invasion of organisms (insects, fungi, etc.), which are easily damaged or corrupted. One of the ways to effectively eliminate these harmful organisms is the control of insecticides and sterilization.

However, insecticides and fungicides used in the control can cause undesirable side effects (deformations of the form or material) in the cultural properties of the organic material, and have been a risk to the human body and the environment. In particular, methyl bromide, which has been widely used as a fumigant, is a destructive substance for the global ozone layer. In 1997, the Montreal Protocol was finalized, and the developed countries were banned from use in 2005 and the developing countries including Korea were scheduled to be fully exhausted in 2015. As a result, studies on the use of high temperature and low temperature as a substitute for methyl bromide, radiation irradiation, hypoxic concentration using nitrogen or argon gas, and insecticidal method using carbon dioxide have increased. Among them, hypoxic insecticide method using nitrogen or argon, carbon dioxide insecticide method, low temperature method and the like are widely spreading around the world as an insecticide method for preservation of cultural properties.

The hypoxic-concentration insecticide method described above utilizes such an insect death mechanism. To explain this in more detail, insects have a small hole, or spiral, along the side of the abdomen, through which oxygen and carbon dioxide exchange and moisture retention can be controlled. The air that enters through the tongue spreads into the body and is supplied to the organ. Therefore, when an insect lacks oxygen by a hypoxic insecticidal method or when a certain amount of carbon dioxide is accumulated in the body, the insect opens the gate and sucks oxygen. However, if excess oxygen is left deficient, the body's moisture will evaporate rapidly (7 to 10 times faster than when closed) because of the constant opening of the gates, resulting in death due to drying. Moreover, at high temperatures, breathing increases and water loss accelerates, resulting in death. However, insects have a different rate of evaporation of water in the body depending on oxygen concentration, temperature and humidity during the experiment of hypoxic concentration insecticide method. In other words, when insects are dried in a state where the oxygen is lean, the temperature is high, or the humidity is low, the insides of the insects are depleted in a short time due to dehydration of the body more rapidly. Therefore, when the concentration of oxygen, temperature and humidity are appropriately adjusted at the time of insecticide, a complete insecticide can be expected.

On the other hand, the hypoxic concentration insecticide method uses an inert gas such as nitrogen, argon or helium to suppress or control pests. In addition, the hypoxic-concentration insecticide method has been used in various systems depending on the size and quantity of the cultural material to be insect-treated, and a small or medium-sized bag system, a large tent system, a bubble system, and a chamber system are most commonly used. This is explained in more detail as follows.

In the case of small or medium-sized bags or large tent systems and bubble systems, cultural properties are applied to thin film packs made of oxygen-impermeable films or aluminum thin films, respectively, and then inert gas is injected to remove oxygen It is put together with oxygen scavenger and oxygen indicator, or only oxygen scavenger and oxygen indicator are put, heat sealed and insect treatment for a certain time. In the case of the chamber system, a system for injecting an inert gas after inserting a cultural material into a metal material chamber is used for insecticidal action.

However, in the above-described general chamber system, the inert gas is injected into the chamber, the chamber is pushed out by the inert gas, and the inert gas is not completely filled in the chamber, and the inert gas is supplied at the same rate The operation can not be started quickly and the humidity and the temperature of the chamber can not be controlled, so that not only the transformation of the cultural property but also the insecticidal time of the insect is prolonged.

Further, in the case of the chamber system, since a heavy door having a locking means such as a locker is used to maintain the airtightness against the inert gas filled in the inside, the door opened when the cultural property is installed in the chamber is not self- The hinge portion is easily damaged, and the worker who is working on the inside is trapped.

Further, the sealing member attached between the door and the door frame for airtightness inside the chamber does not uniformly contact the entire contact surface of the door with the door frame at the time of closing the door, There is a problem that the door sealing operation for smoothly performing the door closing operation is not performed.

In addition, since the entrance door of the chamber is high, there is a problem in that it is inconvenient to use a transportation means such as a bogie for wearing a large amount of cultural property or a large cultural property, or to use a bogie or the like .

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the problems of the above conventional insecticide chamber system. The present invention employs liquid nitrogen as a pesticide supply source and vaporizes the liquid nitrogen as a pesticide supply source. And it is an object of the present invention to make the insecticide work more safe and convenient such that it can easily cope with the situation.

Another object of the present invention is to improve the convenience and safety of use of the door while improving the airtightness of the operation chamber, while improving the airtightness of the operation chamber.

In order to achieve the above object, the present invention provides an operation chamber for eradicating pests of an insect pest product by diluting an oxygen concentration of an insect pest through an entrance, An insecticide container connected to the operation chamber for diluting oxygen concentration in the internal space by injecting insecticide into the internal space; An insecticide supply regulator installed between the insecticide container and the operation chamber to control supply of the insecticide injected from the insecticide container to the operation chamber; And an air supply and exhaust means installed in a wall of the operation chamber and sucking the outside air into the inside space or discharging the insecticide in the inside space to the outside, And a thermo-hygrostat to maintain the operating condition inside the operation chamber according to a command of the regulator.

In addition, the insecticide injected from the insecticide container into the inner space is preferably composed of at least one of a group of insecticidal gases consisting of nitrogen, helium or argon.

In addition, it is preferable that the insecticide injected into the inner space from the insecticide container is made of liquid nitrogen.

Further, it is preferable that, when the insecticide is liquid nitrogen, the apparatus further comprises a vaporizer for vaporizing the liquid nitrogen supplied from the insecticide container with nitrogen gas before injecting the liquid nitrogen into the inner space.

The apparatus may further include a nitrogen generator that is connected to the insecticide supply regulator and injects nitrogen gas directly extracted from the external air into the internal space.

Further, a door side latching part provided on one side of the outer side of the door for opening and closing the doorway; And a door stopper for temporarily fixing the door to the receiving position, wherein the door stopper is detachably coupled to the door-side catching hole when the door is opened to the receiving position.

Preferably, the door-side latching part includes a latching protrusion attached to a lower end side of the door, the latching protrusion protruding toward the ground.

Preferably, the latching protrusion includes a rolling member mounted on a lower end of the door so as to be rotatable about a rotation radial axis of the door.

Preferably, the fixed side latch includes a stop projection coupled with the latch projection when the door is in the receiving position, to prevent the door from closing.

The stop protrusion has a vertical triangle shape. When the stop protrusion contacts with the latch protrusion moving in the door opening direction, the bevel is compressed by the latch protrusion to allow engagement with the latch protrusion, When the locking protrusion is in contact with the locking protrusion moving in the closing direction, the height of the locking protrusion prevents the locking protrusion from being separated from the locking protrusion, And a releasing member which rotatably contacts one side of the lock member and compresses the lock member when rotated by an external force in a state of being engaged with the latch projection so as to unlock the lock member with respect to the latch projection, ; ≪ / RTI >

The door hinge connecting the door for opening and closing the door and the door frame surrounding the door includes a first hinge bracket attached to the door frame and protruding from the door frame; A second hinge bracket attached to the door; And one end is pivotally connected to the first hinge bracket, and the other end is pivotally connected to the second hinge bracket, wherein one end or the other end receives a larger pivoting rotation resistance than the other end And the connecting arm is preferably made of a metal.

The connection arm may include: a first pocket portion surrounding the first hinge bracket; And a second pocket portion surrounding the second hinge bracket, and a guide roll is interposed between the second hinge bracket and the crank web.

Further, it is preferable that the guide roll has an elliptical cross-sectional shape.

In addition, it may further comprise a footrest provided on the ground in front of the doorway so as to be able to pass over a jaw protruding from the ground to the lower end of the doorway, wherein the footrest does not interfere with opening / closing rotation of the door, It is preferable that the movable member is rotatable.

According to the large capacity hypoxic concentration insect chamber system of the present invention, since not only the incompressible gas but also the liquid nitrogen is vaporized and used as an insecticide, the handling of the insecticide can be made more convenient and safe. Particularly, since the insecticide can be discharged to the outside when an emergency situation occurs in the operation chamber, the emergency situation can be coped more easily. Further, since a nitrogen generator can be used as an alternative means or an auxiliary means as a supply source of nitrogen gas, it is possible to supply more stable insecticide. In addition, since the thermo-hygrostat is directly installed inside the operation chamber, the temperature and humidity in the chamber can be changed or maintained more accurately and quickly.

In addition, when the door is put in a heavy weight position, that is, when the door is held in a fully opened position so that the insect-proof article can be put into the operation chamber, the weight of the door is supported by the door stopper, So that the convenience of use of the door and safety can be improved and the durability life can be improved.

Further, since the hinge supporting the door has a double hinge structure and the pivoting resistance of one hinge pin is made larger than the other, the sealing member attached to each of the door and the door frame can be uniformly contacted Therefore, the airtightness of the insecticidal gas can be more reliably maintained while the sealing operation of the door is easily performed.

In addition, since a footrest capable of moving up and down is provided in front of the doorway of the operation chamber, it is possible to more conveniently use the transportation means such as a bogie when wearing a large or a large amount of cultural property. The contact surface between the door and the door frame can be sufficiently secured, so that the sealing member surrounding the door frame is not limited by the space, and thus the airtightness performance of the operation chamber can be further improved.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram illustrating a high capacity hypoxic concentration insect chamber system in accordance with one embodiment of the present invention.
2 is a schematic plan view showing the insecticide chamber system shown in Fig.
3 is a side cross-sectional view of the operation chamber shown in Figs. 1 and 2. Fig.
Figure 4 is a front view of Figure 3;
Fig. 5 is a perspective view showing the door side latching mechanism shown in Fig. 4 in detail.
Fig. 6 is a perspective view showing in detail the fastening tab shown in Fig. 4; Fig.
FIG. 7 is a perspective view showing a door stopper in a state in which the door side latching part and the fixed side latching part shown in FIGS. 5 and 6 are engaged; FIG.
Fig. 8 is a perspective view showing the back side of the fastening catch shown in Fig. 6; Fig.
Fig. 9 is a partially detailed front view of the door hinge shown in Fig. 4 in an enlarged scale; Fig.
10 is a plan view of Fig.
FIG. 11 is a partial detail side view of the foot portion of FIG. 3 in an enlarged view.
12 is a partially detailed plan view showing an enlarged view exaggerating the closed state of the door.
FIG. 13 is a schematic view schematically showing the configuration of FIG. 12; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a large capacity hypoxic concentration insect chamber system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The large capacity hypoxic concentration insecticide chamber system of the present invention is mainly composed of an operation chamber 3, a pesticide container 5, a pesticide supply regulating portion 7, and an air supply means (not shown) 9), and further includes a vaporizer (11).

Here, the operation chamber 3 is a main member in which insecticide is carried out for various kinds of insect pest products such as cultural goods, which are received in the interior, and is also referred to as an insecticide chamber. The operation chamber 3 is preferably made of a panel made of a metal material or a plastic material having a built-in heat insulating material such as glass fiber. In addition, the operation chamber 3 is a large-sized enclosure that can be insecticide-wearing by wearing insect-proof articles such as large-sized cultural objects as well as small- and medium-sized ones. To this end, the operation chamber 3 utilizes a large bogie, such as a shelf-type water bar having a height of about 1.8 m, and as shown in Fig. 3, The doorway 12 is opened. Therefore, the operation chamber 3 is filled with the insecticidal gas such as the nitrogen gas in the internal space S in which the insecticidal product is loaded through the entrance 12 to dilute the oxygen concentration in the internal space S, It will eradicate pests of large commodities.

At this time, in order to fill insecticide such as insecticide gas in the operation chamber 3, a door 13 is installed in the entrance 12 as shown in FIG. 2 to FIG. The door 13 is provided with a locker 20 on the front surface thereof to open and close the door 12 while maintaining the airtightness of the doorway 12 in the closed state of the doorway 12.

As shown in Figs. 2 to 4, the locker 20 is a means for closing the door 12 by the door 13, and includes a plurality of bolts 17 arranged at regular intervals in the lateral direction, A rotary knob 19 for moving the ratchet 17 to the left and right and a gear box 21 having a plurality of gear trains for converting the rotational force of the rotary knob 19 into lateral movement of the ratchet 17 . Therefore, in order to seal the door 13 in the closed state by the locker 20, the rotary knob 19 is turned to move the knob 17 to the left or right so that the inclined tip of the bolt 17 contacts the door frame 15 To be inserted into a plurality of bolster frame 22 holes 24 that are attached along the length of the bolster frame 22.

4, when the tip of the bolt 17 is fully inserted into the hole 24 of the bolster frame 22, the door 13 is moved to the engagement of the bolster 17 and the bolster frame 22 And is pressed against the door frame 15. 3 or 10 and 11, at least one contact surface of the door 13 and / or the door frame 15 may be provided on the contact surface between the door 13 and the door frame 15, Since the door 13 is pressed against the door frame 15 as the sealing members 16 and 18 are attached in the form of continuous strips, And is tightly attached to the wall surface of the door frame 15 to maintain airtightness inside the operation chamber 3.

As described above, the insecticide container 5 is a container for containing an insecticide filled into the operation chamber 3, and is mounted on one side of the operation chamber 3, as shown in Figs. 1 and 2, (S) of the operation chamber (3) connected via the gas supply pipe (23). Therefore, the oxygen concentration in the internal space S is diluted to create an insecticide atmosphere inside the operation chamber 3. As the pesticide which dilutes the oxygen concentration of the operation chamber 3, it is possible to use a liquid pesticide as well as a gas phase pesticide represented by an inert gas such as helium or argon or nitrogen gas, It is preferable to use liquid nitrogen.

The insecticide supply regulating unit 7 is also a control means for controlling the supply of the insecticide injected into the operation chamber 3 from the insecticide container 5 as described above. As shown in Figs. 1 and 2, (23) connecting the insecticide container (5) and the internal space (S) of the operation chamber (3) between the operation chamber (5) and the operation chamber (3). The insecticide supply regulating section 7 controls the flow rate of insecticide in the injection conduit 23 by the control signal sent from the controller 25. That is, Or the supply of insecticide by the injection line 23 is stopped or accelerated.

The air supply and exhaust unit 9 is a means for ventilating the internal space S of the operation chamber 3 according to the operation situation and is installed through the wall surface of the operation chamber 3 as shown in FIGS. A blower 27 for extracting insecticidal gas from the internal space S to the outside, a vent pipe 29 for sucking outside air into the internal space S in a negative pressure state, and the like. Therefore, the insecticide filled in the internal space S of the operation chamber 3 is discharged to the outside by the blower 27 after the insecticide is terminated. In the internal space S in which the insecticide is discharged, 29) to suck and fill the outside air.

The vaporizer 11 is an apparatus for vaporizing liquid nitrogen when the liquid nitrogen is used as an insecticide. As shown in FIGS. 1 and 2, the vaporizer 11 is connected to an injection line 23 between the insecticide supply regulating unit 7 and the insecticide container 5, As shown in FIG. The nitrogen in the liquid state supplied from the insecticide container 5 is converted into the gas state or nitrogen gas through the vaporizer 11 and is supplied to the operation chamber 3 through the insecticide supply regulating portion 7. [ Lt; / RTI >

On the other hand, the operation chamber 3 is provided with a thermo-hygrostat 10, as shown in FIGS. 1 to 3, on the wall surface of the inside, and more preferably on the opposite side of the door 12. The constant temperature and humidity device (10) is a device for keeping the operating condition inside the operation chamber (3) constant, and adjusts the temperature and humidity of the internal space (S) at the command of the insecticide supply control part (7).

3, the thermo-hygrostat 10 includes a humidifier 31 for humidifying the internal space S of the operation chamber 3, a heater 33 for heating the internal space S, And the evaporator 35 and the cooler 36, the humidifier 31, the heater 33 and the evaporator 35, which generate the cool air and lower the temperature of the internal space S, And a blowing fan 37 for diffusing the air into the space S as a whole. At this time, the evaporator 35 is connected to the drainage tank 39 outside the operation chamber 3 to periodically drain the condensed water.

Meanwhile, the insecticide chamber system 1 of the present invention may further include a nitrogen generator 41. This nitrogen generator (41) is a known device for extracting nitrogen gas directly from the air, and makes it possible to use nitrogen gas directly extracted from the outside air as an insecticide. 1, the nitrogen generator 41 is in fluid communication with the insecticide supply regulator 7 to generate a series of insecticidal gases consisting of the insecticide container 5, the controller 25 and the vaporizer 11 The nitrogen gas used as an insecticide can be supplied to the internal space S of the operation chamber 3,

Furthermore, the insecticide chamber system 1 of the present invention further includes a door stopper 50, as shown in Fig. The door stopper 50 is a means for temporarily fixing the door 13 opened to the receiving position in the open state and is provided with a door side latch 51 and a fixed side latch 53 ).

Here, first, the door side latching part 51 is an engaging means protruding from the door 13 so as to be fixed to the fixed side latching opening 53, and as shown in the lower end of Fig. 4 and Fig. 5, In particular, on the outer side in the turning radial direction of the door (13). However, the door side latching hole 51 is not necessarily provided on the lower side of the door or on the outside in the radial direction of rotation, and the mounting position can be changed according to the installation condition. In any case, the door-side latching part 51 serves to temporarily fix the door 13 at the wearing position, that is, at the position where the door 13 is sufficiently opened from the door 12.

The fixed side latching opening 53 is provided at a position on the ground corresponding to the door side latching opening 51 of the door 13 in the loading position so as to latch the door side latching opening 51, As shown in Fig. 4 and Fig. 6, separately on the ground side of the front side of the operation chamber 3. [ However, the fixed-side hook 53 need not always be provided on the ground, and the mounting position can be changed according to the mounting position of the door-side hook 51. [ In any case, the fixed side latch 53 is detachably coupled to the door side latch 51 of the door 13 opened to the receiving position, thereby temporarily fixing the door 13 to the receiving position.

As shown in the figure, when the door-side latching unit 51 is installed outside the rotation radius of the lower end of the door 13, the latching protrusion 51 protrudes toward the ground to perform the latching operation of the latching- 55). As shown in Fig. 5, the latching protrusion 55 is bent downward in a vertical plane from the substrate 57 attached to the door 13 and projects downward. As shown in Fig. 7, 53 of the first and second stoppers 51, 52. At this time, as shown in FIG. 5, it is preferable that the catching projection 55 is mounted on the lower end portion of the catching projection 56 as shown in FIG. Since the rolling member 56 is arranged so that its center axis coincides with the radial direction of the turning radius at which the door 13 rotates and a cloud is generated in the tangential direction of the turning radius of the door 13, The contact can be made more smoothly. At this time, the rolling member 56 may be formed in any shape, such as a ball shape as well as a roller shape shown in FIG. 5, as long as it can be formed in the tangential direction of the turning radius of the door 13.

Likewise, the fixed-side latching opening 53 also includes a stopping projection 59 formed so as to correspond to the latching projection 55 of the door-side latching opening 51 for latching and fixing the door-side latching opening 51. 6 and 7, the stop projection 59 may be of a type that can snap-fit with the latch projection 55 of the door-side latch 51 when the door 13 is in the loading position That is, any type that can fix or move the door 13 by being elastically attached to or detached from the latching projection 55, for example, a plate spring or the like bent in an inverted V shape It can also be implemented with the same elastic means.

6, the stop projection 59 according to the present embodiment in particular has a lock member 61 for directly causing snap engagement with the lock projection 55, and a lock member 61 for locking the lock member 61 And a releasing member 63 for releasing.

Here, the locking member 61 first permits unidirectional movement of the latching protrusion 55, that is, movement in the direction of opening the door 13, like a latch of a general door handle, , Movement in the direction of closing the door 13 is prohibited. For this purpose, the locking member 61 has a right triangular shape on the vertical plane. When the locking projection 55 moves in the direction of opening the door 13, that is, when the locking projection 61 is engaged with the fixed side locking hole 53, The engaging protrusions 55 are pressed downward to allow movement of the engaging protrusions 55 and hence engagement. However, when the engaging projection 55 moves in the direction of closing the door 13, that is, when the engaging projection 55 is released from the fixed side engaging hole 53, the height corresponding to the height of the right triangle prevents the engaging projection 55 from moving So that the movement of the latching protrusion 55 and hence the disengagement is not permitted.

The releasing member 63 is a means for unlocking the locking member 61 with respect to the locking projection 55 and can be manufactured in any structure or form as long as it can operate the locking member 61 in the form of a latch In this embodiment, as shown in Fig. 8, it can be manufactured in the form of a stepping plate contacting one end of the lock member 61, that is, the lower end of the lever 65 for extending and retracting the lock member 61. [ At this time, the releasing member 63 may be formed by, for example, being bent in a longitudinally-pointed shape as shown in FIG. 8, and a rotary shaft 69 protrudes at a bending point and is pivotably mounted on the inner side surface of the case 67. The release member 63 pivots about the rotary shaft 69 when the user pushes the portion protruding out of the case 67 so as to press the lever 65 to be connected to the lever 65 like the door handle latch The locking member 61 is compressed. The locking member 61 moves downward so that the locking of the locking member 61 with respect to the locking protrusion 55 disappears and the door side locking hole 51 can be released from the locking side locking hole 53 So that the door 13 can be closed.

The insect chamber system 1 of the present invention further includes a door hinge 70 for foldably connecting the door 13 and the door frame 15 surrounding the door 13 when the door 13 is closed . The door hinge 70 is a double hinge to optimize the airtightness between the door 13 and the door frame 15 and is configured to have a first hinge bracket 71 , A second hinge bracket 73, a connecting arm 75, and a guide roll 77. [

The first hinge bracket 71 is a supporting means for connecting the hinge 70 and the door frame 15 to each other. As shown in Figs. 4, 9 and 10, For example, on the left side of FIG. 4, and protrudes forward so as to support the connection arm 75. As shown in FIG.

Similarly, the second hinge bracket 73 is also a supporting means for connecting the hinge 70 and the door 13, and as shown in Figs. 4 and 9 and 10, the first hinge bracket 71, Side edge of the door 13, for example, on the left side of Fig. And protrudes forward so as to be able to support the connection arm 75.

The connecting arm 75 is connected to the first and second hinge brackets 71 and 73 to cause a hinge operation. The connecting arm 75 may have various shapes depending on the shape of the first and second hinge brackets 71 and 73, ≪ / RTI > For example, when the hinge bracket is bent in a U-shape, the connecting arm may be formed in a cross shape, and when the hinge bracket is bent so as to face the hinge bracket so as to face each other, the connecting arm may be formed in a shape have.

4, 9 and 10, the connecting arm 75 has a crank shape. In the drawing, the first pocket portion 81 is formed at the lower left end of the connecting arm 75, And a crank web 83 is formed between the first pocket portion 81 and the second pocket portion 82 in the upper and lower directions. The first hinge bracket 71 is seated in the first pocket portion 81 at one end of the connecting arm 75 and is pivotally connected through the first hinge pin 85 and the second pocket portion 82 are seated on the second hinge bracket 73 and pivotally connected through the second hinge pin 86. [ At this time, the second hinge bracket 73 is positioned above the first hinge bracket 71, as shown in Fig.

Particularly, in the hinge 70 according to the present embodiment, the other end on the side of the second pocket portion 82 receives a larger pivoting rotation resistance than the one end on the first pocket portion 81 side. Accordingly, when the door 13 rotates, as shown in Fig. 10, the pivoting resistance is pivoted about the first hinge pin 85 of the first pocket portion 81 having a small resistance to rotation.

As described above, it is possible to increase or decrease the rotational resistance of one of the hinge pins in the double hinge more than the rotational resistance of the other hinge pin by various means. In this embodiment, As shown in Fig. 10, is implemented by the guide roll 77. Fig. The guide roll 77 is interposed between the second hinge bracket 73 and the crank web 83 and has an elliptical cross sectional shape so that the pivot rotation resistance around the second hinge pin 86 is set to the first Which is larger than the pivot rotation resistance around the hinge pin 85. [ Therefore, when the door 13 is opened or closed, the first hinge pin 85 is rotated about the second hinge pin 86.

4 and 11, the insecticide chamber system 1 of the present invention can be used as a disinfection chamber system in which the airtightness between the door 13 and the door frame 15 is maintained, And a foot plate 90 for allowing the door 12 to pass over the jaws 14 of the door 12. At this time, the jaw 14 of the entrance 12 indicates the portion from the ground to the lower end of the entrance 12.

Therefore, when the door (13) does not interfere with the opening / closing rotation of the door (13), when a large insecticide vest is loaded on the carrying means such as a bogie and put into the operation chamber (3) ). To this end, the footrest 90 is pivotable up and down on the side of the doorway 12, and as shown in Fig. 11 for example, two plate members 91, 92 pivotally connected by a hinge pin 93 at an intermediate lower end portion And an operation cylinder 95 for pivotally rotating the upper plate 92 about the hinge pin 93. [

11, when the door 13 is opened or closed, the operating cylinder 95 is shrunk to place the upper plate 92 on the flat surface as shown by a hint line in FIG. 11, The operation cylinder 95 is expanded to lift the upper plate 92 up to the jaw 14 as shown by the solid line. At this time, it is conceivable to change the length of the door 13 by raising the door 13 up to the door entrance 14 instead of rotating the door 90 up and down in order to avoid interference between the door 13 and the footrest 90. However, It is difficult to apply the sealing member 16 or 18 since the overlapping portion between the door and the door frame 15 is almost lost and the sealing members 16 and 18 can not be attached.

Now, the operation of the large capacity hypoxic concentration insect chamber system 1 according to the preferred embodiment of the present invention will be described as follows.

In order to insecticide-versus-product such as cultural property by the insecticide chamber system (1) of the present invention, cultural material of an organic material requiring insecticidal work is first put into the operation chamber (3).

To this end, the door 13 is opened to the receiving position. The opened door 13 is prevented from being closed with the operator in the operating chamber 3, and in order to prevent sagging due to its own weight in the open state, , The door side latching part 51 and the fixed side latching part 53 of the door stopper 50 are engaged with each other.

The locking protrusion 55 of the door side locking hole 51 is engaged with the locking projection 59 of the locking side locking hole 53. When the locking projection 55 is engaged with the locking projection 59 The rolling member 56 compresses the locking member 61 while moving along the inclined surface of the locking member 61. When the rolling member 56 is engaged with the locking member 61, the rolling member 56 is caught by the height surface of the locking member 61,

At this time, a stopping protrusion 68 can be attached to the rear end of the case 67 of the fixed side locking hole 53 with the locking projection 55 interposed therebetween on the opposite side of the locking member 61. In this case, since the rolling member 56 is supported on the case 67 while being sandwiched between the locking member 61 and the stopping projection 66, it is possible to prevent the door 13 from sagging.

In addition, after the door 13 is opened and fixed to the receiving position as described above, it is possible to comfortably put a large amount or a large size of the insect-proof article, and the insect-proof article is loaded on the carriage and passes through the door 12 The upper end of the upper plate 91 is moved to the lower end of the door 12 by moving the actuating cylinder 95 of the footrest 90 as shown by the broken lines in FIGS.

When the insecticide-to-commodity product is thus completed, the operation cylinder 95 is returned to its original position, thereby lowering the top plate 91 to the position shown by the solid line in FIGS. 3 and 11.

Then, the releasing member 63 of the fixed-side latching member 53 is stepped on, thereby releasing the engagement between the door-side latching member 51 and the fixed-side latching member 53. The release member 63 shown in Fig. 6 rotates about the rotary shaft 69 in a stepped state and pushes the lever 65 backward at the same time as the lock member 61 is rotated, (67). When the lock member 61 is disengaged into the case 67 as described above, the engagement between the door side latching member 51 and the fixed side latching member 53 is released and the door 13 can be pulled to close.

When the door 13 comes into contact with the door frame 15 and closes the entrance 12, the rotary knob 19 of the locker 20 is turned so that the insecticide can be injected into the operation chamber 3, Thereby sealing the doorway 12 in a hermetic state by the door 13. As a result,

However, the door 13 is farther away from the hinge 70 due to the contact resistance between the sealing members 16 and 18, as shown in Fig. 13, when the door 13 is pushed in the direction of the arrow P, the reaction force R is first transmitted between the sealing members 16 and 18 near the first hinge pin 85, which is the center of rotation, And as the door 13 gets closer to the door frame 15, the reaction force gradually increases. In this state, if the second hinge pin 86 is not provided, the right portion of the door 13 does not approach the door frame 15 any longer. 12, the latch 17 can not be pulled outwardly from the hole 24 of the latch bar 22, so that the door 17 can be prevented from being pulled out by the engagement of the bolt 17 and the latch bar 22. [ 13) is not sealed.

13, even if the reaction force R is generated in the sealing members 16 and 18, since the door 13 can be pivotally rotated about the second hinge pin 86, The right portion is also accessible to the door frame 15 by rotating in the direction of the arrow M so that the latch 17 can be inserted into the hole 24 of the ratchet frame 22. [ As a result, the door 13 uniformly distributes the force applied to the door frame 15 by the wedge action of the bolt 17 to the left and right sides so that the sealing member 16 is uniformly pressed regardless of the left and right positions, (3).

When the sealing of the operation chamber 3 is completed, the temperature, humidity, oxygen concentration, type of insecticide and operation time inside the operation chamber 3 are set. To this end, liquid nitrogen is supplied from the insecticide container 5 to the vaporizer 11 by using the controller 25 shown in Fig. 2, and the nitrogen gas vaporized in the vaporizer 11 is set in the insecticide supply regulator 7 Into the working chamber (3). The controller 25 activates the thermo-hygrostat 10 to adjust the temperature and humidity of the internal space S to an appropriate level directly in the operation chamber 3. [

In this way, the inside of the operation chamber 3 is formed into an atmosphere of low oxygen concentration suitable for insecticide by nitrogen gas, and various insect pests present in various kinds of insect pest products such as cultural properties are insect.

On the other hand, it is necessary to circulate the atmosphere inside the operation chamber 3 periodically or temporarily. At this time, the blower 27 shown in FIG. 1 and FIG. 2 is operated to extract the nitrogen gas in the internal space S to the outside and to suck outside air through the vent pipe 29. Then, when the nitrogen gas is supplied again from the insecticide container 5 and the vaporizer 11 and is injected into the operation chamber 3, the internal space S can be again formed into a low-oxygen concentration insecticidal atmosphere. At this time, the pesticide container 5 and the vaporizer 11 may be replaced or assisted by the nitrogen generator 41, and nitrogen gas may be directly extracted from the atmosphere to be used as an insecticide gas.

On the other hand, the operation chamber 3 is capable of emergency stop when an abnormal situation occurs during operation. Emergency stop is, for example, when the temperature or pressure inside the operation chamber 3 sensed by the temperature sensor and the pressure sensor exceeds the set range, When the gas leaks to the outside of the operation chamber 3, the operation is stopped through the control of the controller 25. [ Then, the blower 27 is actuated to rapidly exhaust the insecticidal gas filled in the operation chamber 3. [ In addition, an alarm signal is generated through a buzzer or a lamp or a speaker provided in the operation chamber 3. On the other hand, when the emergency stop is performed, the emergency switch installed in the operation chamber 3 may be manually switched and emergency control may be directly performed by the operator.

1: large capacity hypoxic concentration insect chamber system 3: operation chamber
5: Insecticide container 7: Insecticide supply regulator
9: air supply / exhaust means 10: constant temperature /
11: vaporizer 12: entrance
13: Door 15: Door frame
16, 18: sealing member 17: bolt
19: rotary knob 20: rocker
23: injection line 25: controller
27: blower 29: vent pipe
41: Nitrogen generator 50: Door stopper
51: door side latching hole 53: fixed side latching hole
55: engaging protrusion 56: rolling member
59: stop projection 61: locking member
63: release member 65: lever
70: Door hinge 71: First hinge bracket
73: second hinge bracket 75: connecting arm
77: guide roll 81: first pocket portion
82: second pocket portion 85, 86: first and second hinge pins
90: Footsteps 91, 92: Plates (top and bottom plates)
95: operating cylinder S: inner space

Claims (7)

An operation chamber (3) for eradicating pests of the insect pest product by diluting the oxygen concentration of the internal space (S) in which the insect pest is introduced through the entrance (12);
An insecticide container (5) connected to the operation chamber (3) and diluting the oxygen concentration of the internal space (S) by injecting insecticide into the internal space (S);
An insecticide supply regulating unit 7 installed between the insecticide container 5 and the operation chamber 3 for controlling supply of the insecticide injected from the insecticide container 5 into the operation chamber 3; And
And an air supply and exhaust means 9 installed in the wall of the operation chamber 3 for sucking the outside air into the inside space S or discharging the insecticide in the inside space S to the outside,
And a thermostatic hygrostat (10) installed inside the operation chamber (3) for maintaining the operating condition inside the operation chamber (3) according to the command of the insecticide supply regulating part (7) A hypoxic concentration insect chamber system. The method according to claim 1,
Wherein the insecticide injected from the insecticide container (5) into the internal space (S) comprises at least one of a group of insecticidal gases composed of nitrogen, helium, argon or liquefied nitrogen. The method according to claim 1,
Further comprising a nitrogen generator (41) in fluid connection with the insecticide supply regulator (7) for injecting nitrogen gas directly extracted from the external air into the internal space (S). The method according to any one of claims 1 to 3,
The door hinge 70 connects the door 13 that opens and closes the door 12 and the door frame 15 that surrounds the door 13,
A first hinge bracket 71 protruding from the door frame 15;
A second hinge bracket 73 protruding from the door 13; And
One end of which is pivotally connected to the first hinge bracket 71 and the other end of which is pivotally connected to the second hinge bracket 73, And a connection arm (75) adapted to receive a rotational resistance. The method of claim 4,
The connecting arm (75)
A first pocket portion (81) surrounding the first hinge bracket (71); And
And a second pocket portion (82) surrounding the second hinge bracket (73). The second pocket portion (82)
And a guide roll (77) is interposed between the second hinge bracket (73) and the crank web (83). The method of claim 5,
Characterized in that the guide roll (77) has an elliptical cross-sectional shape. The method according to any one of claims 1 to 3,
Further comprising a foot plate (90) provided on the ground in front of the doorway (12) so as to pass over a shoulder (14) protruding from the ground to the lower end of the doorway (12)
Wherein the footrest (90) is rotatable about an end of the footrest (12) on the side of the doorway (12) so as not to interfere with opening and closing rotation of the door (13).

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