JPH08140515A - Equipment for rearing - Google Patents

Abstract

PURPOSE: To provide the subject equipment, comprising a specific constitution and capable of always feeding purified air to each rearing cage and surely preventing contaminated air passing through the rearing cage from reaching a working space of an experimenter. CONSTITUTION: This equipment for rearing is constituted by installing an intermediate door 13 in a positional relationship parallel to a front door 11 in each stage of a rack 10, having the front door 11 on the front side and the periphery covered with a plate unit, dividing the interior of the rack into two inner spaces comprising each rearing chamber 14 for arranging each rearing cage 12 and a forechamber 15 facing to the front door 11 so as to connect a purified air means 16 for supplying purified air to the forechamber 15 and the rearing chamber 14. Thereby, even when the front door 11 of the rack 10 is opened, the forechamber 15 in the rack 10 is kept under a positive pressure as compared with that of a working space of an experimenter. As a result, the purified air in the forechamber 15 is merely blown off without penetrating the air in the working space of the experimenter into the rearing chamber 14. Various germs can be prevented from entering the rearing cage 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breeding facility capable of constantly supplying purified air to a breeding cage and preventing contaminated air in the breeding cage from reaching a working space of an experimenter. Regarding

[0002]

2. Description of the Related Art Conventionally, a breeding facility 1 as shown in FIG.
It has been known. The breeding facility 1 shown in this figure has many rack cages 2 formed in a box shape, with breeding cages 3 arranged in a plurality of rows (horizontal direction) and a plurality of stages (vertical direction). A laboratory animal is bred and observed at one time, and a partition 6 is provided between the working space 4 of the experimenter and the installation space 5 of the rack shelf 2, and the installation space of the rack shelf 2 is provided. By setting the negative pressure on the 5 side, the air on the working space 4 side is taken into the installation space 5 side of the rack shelf 2. By the way, in the breeding facility 1 shown in FIG. 4, since the air in the working space 5 is directly supplied to the breeding cage 3, for example, various bacteria in the working space 5 are used as experimental animals in the breeding cage 3. Sometimes break into
This causes a problem that an accurate animal experiment cannot be performed.

[0003]

In order to solve such a problem, a high-performance filter 8 for air cleaning is provided on the upper part of the rack shelf 2 as in the breeding equipment 7 shown in FIG. 5, for example. By providing a blower 9 and supplying clean air that has passed through the high-performance filter 8 directly to the rear part of the breeding cage 3 in the rack shelf 2, the breeding animals are prevented from being affected by external germs. Has been done. However, in such a breeding facility 7, the contaminated air that has passed through the breeding cage 3 is ejected into the working space 5 of the experimenter, which causes a problem that the experimenter himself is affected by the contaminated air. In order to solve such a problem, for example, the air that has passed through the rack shelf 2 of the breeding facility 7 shown in FIG. 5 may be sucked and collected from a separately provided exhaust device. When the air is to be collected, not only the air from the blower 9 but also the air enters from the front side of the rack shelf 2 (especially when the front door (not shown) of the rack shelf 2 is opened). Working space 5
A large amount of air enters the breeding cage 3), which causes a problem that various bacteria enter the breeding cage 3 as in the breeding facility 1 of FIG.

The present invention has been made in view of the above circumstances, and the polluted air after passing through the breeding cage can constantly supply purified air to the breeding cage. The purpose is to provide a completely new type of breeding facility that prevents the air in the workspace from entering the breeding cage even when the front door of the rack shelf is opened, which can prevent it from reaching the workspace. .

[0005]

In order to achieve the above object, according to the first aspect of the invention, a plurality of breeding cages are arranged in a rack shelf having a front door on the front side and the periphery being covered with a plate. A rearing facility for controlling the inside of the rack shelf, which divides the rack shelf into upper and lower spaces to form two internal spaces including a rearing room in which rearing cages are arranged and a front room facing the front door. A door is provided, and clean air supply means for supplying clean air is connected to the front room and the breeding room, respectively.

In the second aspect of the present invention, the clean air supply means is provided with an intake duct pipe communicating with the working space of the experimenter, and a blower provided in the middle of the intake duct pipe for sucking air in the working space of the experimenter. And a cleaning filter for cleaning the air sucked by the blower, and an air distribution means for distributing the clean air that has passed through the cleaning filter into the antechamber and the breeding room. And

In a third aspect of the invention, a polluted air discharging means for discharging polluted air passing through the breeding room to the outside is provided on the rear side of the breeding room.

[0008]

In the breeding facility according to the first aspect of the invention, an intermediate door is formed in the rack shelf by partitioning the rack shelf into upper and lower parts to form a breeding room in which a breeding cage is placed and a front room facing the front door. Furthermore, since the clean air is supplied from the clean air supply means to each of the anterior room and the breeding room, purified air is constantly supplied to the breeding cage to keep the breeding room. The contaminated air after passing can be prevented from reaching the experimenter's work space, and the front chamber in the rack shelf will be more positive pressure than the experimenter's work space. Even if there is, the clean air in the front room only blows out into the experimenter's work space, and the air containing miscellaneous bacteria in the experimenter's work space does not enter the breeding room.

In the breeding facility according to the second aspect of the invention, the air in the working space of the experimenter is distributed and supplied to the front chamber and the breeding chamber in the rack shelf through the air distribution means by driving the blower. At this time, since the air distributed and supplied to the antechamber and the breeding room was purified by the purification filter, the air in the working space of the experimenter was taken into the breeding room. , The inside of the breeding cage is not contaminated by various bacteria, and the experimental animals can be kept clean at all times.

In the breeding facility according to the third aspect of the present invention, the air in the breeding room can be forcibly discharged to the outside by the contaminated air discharging means provided on the rear side of the breeding room, which allows the air to pass through the breeding cage. It is possible to reliably prevent the contaminated air after the operation from reaching the experimenter's work space, and the experimenter's work space can be maintained in a clean state as in the breeding room.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In these figures, FIG. 1 is a partial cross-sectional view when FIG. 2 is cut at each position shown by an arrow (a) and an arrow (b), and FIG. It is a perspective view which clearly shows the positional relationship with the hole 25 (all are mentioned later). First, the reference numeral 10 in FIGS. 1 and 2 is a rack shelf having a slide type front door 11 and formed in a box shape as a whole. A large number of breeding cages 12 are arranged in a plurality of rows (horizontal direction) and a plurality of stages (vertical direction) in order to breed and observe the animals at one time.

Further, in the rack shelf 10, a slide type intermediate door 13 is provided so as to have a positional relationship parallel to the front door 11. The intermediate door 13 is provided for each stage of the rack shelf 10.
The rack shelf 10 is divided into two internal spaces including a breeding room 14 in which the breeding cage 12 is arranged and a front chamber 15 that faces the front door 11.

Next, the clean air supply means 16 for supplying clean air to the breeding room 14 and the antechamber 15 will be described. The clean air supply means 16 is provided in the work space 17 of the experimenter from the work space 17 of the experimenter to the upper part of the rack shelf 10, and in the middle of the air intake duct pipe 18, and provided in the work space 17 of the experimenter. Intake air duct pipe 18
An air blower 19 for inhaling through the air blower, a cleaning filter 20 provided at an outlet of the air blower 19 for cleaning air supplied through the air intake duct pipe 18, and air passing through the cleaning filter 20 as a front chamber 15. And an air distribution means 21 for distributing to the breeding room 14.

The air distributing means 21 is provided at the upper part of the rack shelf 10 and temporarily stores the clean air that has passed through the cleaning filter 20, and an air storage part 22 vertically on each side of the rack shelf 10. Two guide duct pipes 23 (see FIG. 2) that are provided to guide the clean air in the air reservoir 22;
A large number of these guide duct pipes 23 are formed so as to connect the two guide duct pipes 23 with the ejection holes 24 for ejecting clean air toward the front chamber 15. It is composed of a plurality of connecting pipes 26 in which a large number of small holes 25 (see FIG. 2) for ejecting clean air are formed.
2 is installed in each stage of breeding room 14, and clean air is supplied to each of these stages of breeding room 14 from small holes 25. That is, this air distribution means 21 is shown in FIG.
As shown in the perspective view of FIG. 2, the cleanliness supplied from the ejection hole 24 of the guide duct pipe 23 and the small hole 25 of the connecting pipe 26 to each of the front chamber 15 and the breeding chamber 14 partitioned by the intermediate door 13. Air is supplied individually.

On the other hand, a contaminated air discharging means 30 is provided on the rear side of the breeding room 14. Contaminated air discharging means 30
As shown in FIG. 2, an exhaust duct pipe 32 is provided at a rear position of the breeding room 14 and receives the contaminated air in the breeding room 14 through an exhaust hole 31 formed in the rear surface of the breeding room 14. , A blower 33 for air discharge provided at the end of the exhaust duct 32,
By driving the blower 33, the contaminated air in the breeding room 14 is forcibly discharged to the external space (not shown) through the discharge hole 31 and the exhaust duct 32.

Next, the flow of air in the breeding facility when the blower 19 for intake and the blower 33 for exhaust are driven will be described in detail. (1) The air sucked from the intake duct pipe 18 is cleaned by the cleaning filter 20, and then the rack shelf 10
Is stored in the air storage portion 22 above. (2) The clean air stored in the air storage unit 22 is guided to the two guide duct pipes 23, respectively, and then a part of the cleaning air is passed through the connecting pipe 26 and the small holes 25 of the connecting pipe 26 at each stage. Of the cleaning air, and the rest of the cleaning air is supplied to the front chamber 15 through the ejection holes 24. That is, the clean air cleaned by the cleaning filter 20 is distributed to the breeding chamber 14 and the antechamber 15 at each stage by the guide duct pipe 23 and the connecting pipe 26. (3) The clean air supplied to the breeding room 14 is
After passing through the breeding cage 12 in 4, the discharge hole 31 on the back surface
Through the exhaust duct pipe 32, and further to the outside through the exhaust duct pipe 32.

As described in detail above, in the breeding equipment shown in this embodiment, the rack shelves 10 are arranged in the rack shelves 10.
Is divided into upper and lower parts, a breeding room 14 in which the breeding cage 12 is arranged, and an intermediate door 13 forming a front chamber 15 facing the front door 11 are provided, and further, each of the front chamber 15 and the breeding room 14, Since the clean air is supplied from the clean air supply means 16, the clean air is constantly supplied to the breeding cage 12, and the polluted air after passing through the breeding room 14 is the work of the experimenter. It can be prevented that the space 17 is reached. In addition, the front chamber 15 in the rack shelf 10
However, since the pressure becomes more positive than the working space 17 of the experimenter, even if the front door 11 of the rack shelf 10 is opened, the front chamber 15
Only the clean air inside blows out to the experimenter's work space 17, the dirty air in the experimenter's work space 17 does not enter the breeding cage 12, and the experimenter's work space 17 is placed in the breeding cage 12. It is possible to prevent the germs in the inside from entering.

Further, in the above-mentioned breeding facility, the air in the working space 17 of the experimenter is driven by the blower 19 through the intake duct pipe 18 and the air distribution means 21 to form the front chamber 15 and the breeding chamber 14 in the rack shelf 10. The air distributed and supplied to the antechamber 15 and the breeding room 14 at this time has been cleaned by the cleaning filter 20, so that the working space 17 of the experimenter is Even if the above air is taken into the breeding room 14, the inside of the breeding cage 12 is not contaminated by various bacteria, and it is possible to keep the experimental animals in a clean state at all times. Further, in the above-mentioned breeding facility, the air inside the breeding room 14 is forcibly discharged to the outside by the contaminated air discharging means 30 provided on the rear side of the breeding room 14, so that, for example, it passes through the breeding cage 12. It is possible to reliably prevent the contaminated air after the operation from reaching the working space 17 of the experimenter.
Even in the breeding room 14, it can be maintained in a clean state.

In the above embodiment, the blower 19 for intake is provided on the intake side and the blower 33 for exhaust is provided on the exhaust side. However, the blower 33 for exhaust is not essential, and Even with only the blower 19 described above, purified air can be constantly supplied to the breeding room 14 by increasing the degree of airtightness of the intermediate door 13, for example.
It is possible to prevent contaminated air after passing through the breeding room 14 from reaching the experimenter's work space 17. Even if the front door of the rack shelf is opened, the air in the work space may enter the breeding cage. It is possible to achieve the effect of not having it. Even if the intermediate door 13 is not tightly sealed, the front side of the breeding room 14 has a high proportion of clean air,
Therefore, even if the air in the breeding room 14 leaks into the working space 17 of the experimenter through the antechamber 15, the leak amount is small and the influence is extremely small.

Although transparent glass is used for the front door 11 and the intermediate door 13 described above, this transparent glass may be used for a part of the front door 11 and the intermediate door 13 or for all of them. Well, the choice is arbitrary.

[0021]

As described in detail above, in the breeding facility shown in the first aspect of the invention, the rack shelf is divided into upper and lower compartments, and a rearing room in which rearing cages are arranged and a front door are provided. Since an intermediate door that forms a front room facing the room is provided, and further, clean air is supplied from the clean air supply means to each of the front room and the breeding room, the clean air is supplied to the breeding cage. To prevent the contaminated air after passing through the breeding room from reaching the experimenter's working space, and the front chamber in the rack shelf has a positive pressure higher than that of the experimenter's working space. Even when the front door of the shelf is opened, the clean air in the front room only blows into the experimenter's work space, and the air in the experimenter's work space does not enter the breeding room. It is possible to prevent invasion of various bacteria into .

In the breeding facility according to the second aspect of the invention, the air in the working space of the experimenter is distributed and supplied to the front chamber and the breeding chamber in the rack shelf through the air distribution means by driving the blower. At this time, since the air distributed and supplied to the antechamber and the breeding room was purified by the purification filter, the air in the working space of the experimenter was taken into the breeding room. In addition, the inside of the breeding cage is not contaminated with various bacteria, and it is possible to keep the experimental animals in a clean state at all times.

In the breeding facility according to the third aspect of the invention, the air in the breeding room can be forcibly discharged to the outside by the contaminated air discharging means provided on the rear side of the breeding room, which allows the air to pass through the breeding cage. It is possible to reliably prevent the contaminated air after the operation from reaching the experimenter's work space, and it is possible to keep the experimenter's work space as clean as the breeding room.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is an ejection hole 24 of a guide duct pipe 23 and a connecting pipe 26.
3 is a partial perspective view showing a detailed positional relationship with the small holes 25 of FIG.

FIG. 4 is a side sectional view showing a conventional example (1).

FIG. 5 is a side sectional view showing a conventional example (2).

[Explanation of symbols]

 10 Rack Shelf 11 Front Door 12 Breeding Cage 13 Intermediate Door 14 Breeding Room 15 Anterior Room 16 Clean Air Supply Means 17 Experimenter's Work Space 18 Exhaust Duct 19 Blower 20 Cleaning Filter 21 Air Distribution Means 30 Contaminated Air Discharge Means

Claims (3)

[Claims] 1. A breeding facility in which a plurality of breeding cages are arranged in a rack shelf which has a front door on the front side and whose periphery is covered by a plate body, wherein the rack shelf is provided in the rack shelf. It is divided into upper and lower parts, and an intermediate door that forms two internal spaces consisting of a breeding room in which a breeding cage is placed and a front room facing the front door is provided. A breeding facility characterized in that clean air supply means for supplying air are connected to each other. 2. The clean air supply means, an intake duct pipe communicating with a work space of an experimenter, a blower provided in the middle of the intake duct pipe to suck air in the work space of the experimenter, and the blower. 7. A cleaning filter for cleaning the air sucked by the cleaning device, and an air distributing means for distributing the clean air that has passed through the cleaning filter to the front chamber and the breeding room. The breeding equipment described in 1. 3. The breeding facility according to claim 1, wherein a rear portion of the breeding room is provided with polluted air discharging means for discharging polluted air that has passed through the breeding room to the outside.