JP3847433B2 - Small animal breeding equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a small animal breeding apparatus for experiments such as mice and rats.
[0002]
[Prior art]
As a conventional small animal breeding apparatus, an apparatus in which a box-shaped breeding cage is mounted on a breeding shelf frame that is formed in a rectangular parallelepiped shape using an angle material or the like and is provided with a plurality of stages of cage placing sections is known.
[0003]
A box-shaped breeding cage is a box typically formed of a transparent plastic, and a lid is provided on the upper surface, and there are some which are sealed. And the insertion port of an air supply pipe | tube is provided in the wall surface of the back | inner side of the cage inserted in the cage mounting part. When the box-shaped breeding cage thus formed is placed on the cage placement section, the air supply tube is inserted into the insertion port, and air is supplied to the small animals in the sealed box-shaped breeding cage.
[0004]
Also, as a box-shaped breeding cage, the upper part is opened, this box-shaped breeding cage is put in a sealed cell, an exhaust pipe is attached to the side wall of the cell, and the air in the dirty cell is passed through the exhaust pipe. There is also known a small animal breeding apparatus that discharges outside and sucks fresh air into the cell through a gap between the cells.
[0005]
[Problems to be solved by the invention]
By the way, when a large number of small animals are to be bred in the small animal breeding apparatus in the conventional technique, ammonia gas increases in the box cage due to small animal feces, urine, food, and moisture. It is not suitable for multi-head breeding. Therefore, when raising multiple heads, it is necessary to increase the amount of air supplied into the box-shaped cage. In this way, the strength of the airflow and the loudness due to the strength of the airflow become problems, Cost increases. On the other hand, if the cell is sealed and a box-shaped breeding cage with an open top is placed in the cell, the air inside the cell is sucked and cleaned, but dirty air stays in the cage and is removed. There was a problem that it was not cleaned.
[0006]
The present invention has been made to solve such problems, and an object of the present invention is to provide a small animal breeding apparatus that can always keep the air in a box-shaped breeding cage clean even in the case of multi-head breeding. is there.
[0007]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, the small animal breeding apparatus of the present invention is a small animal breeding apparatus in which a cage rack is provided with cage mounting portions for a plurality of box-shaped breeding cages. The upper part is open, and an air supply part is arranged at a predetermined height above the upper edge of the box-shaped breeding cage, and this air supply part has an air supply port for supplying air into the box-shaped breeding cage. The air supply pipe is an air supply pipe made of a pipe material, and the air supply pipe is located at a position offset to one side plate or the partition plate side of the breeding shelf frame from the back plate of the breeding shelf frame. The length of the air supply pipe in the breeding shelf frame is substantially equal to the length of the box-shaped breeding cage in the front-rear direction. The nozzle hole toward the inner surface or bottom plate of one side plate is the longitudinal direction of the supply pipe Characterized in that it is a plurality formed. And it is preferable to arrange | position so that an air supply part supplies air so that air may be blown toward the inner wall face of a box-shaped breeding cage.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the small animal breeding apparatus of the present invention will be described with reference to the drawings.
[0009]
As shown in FIG. 1, the small animal breeding apparatus 1 includes a breeding shelf frame 2 and a box-shaped breeding cage 3 accommodated therein. The breeding shelf frame 2 is a rectangular parallelepiped vertical frame formed of an angle material or the like, and the back surface is closed by a back plate 5 and side plates 6 are fixed to both side surfaces. Further, an upper plate 7 is fixed to the upper surface and a bottom plate 8 is fixed to the bottom surface, and for example, a three-stage cage mounting portion 9 is formed between the upper plate 7 and the bottom plate 8. A plurality of vertical partition plates 10 are provided at equal intervals in the space of the cage mounting portions 9, and accordingly, the box-shaped breeding cages 3 are laterally arranged in the cage mounting portions 9. Can be inserted side by side. A caster 11 is provided on the bottom surface of the bottom plate 8. The partition plate 10 can be adjusted and moved in the left-right direction according to the dimensions of the breeding cage 3.
[0010]
As shown in FIGS. 1 and 2, a lid 12 that opens downward is rotatably mounted on the front surface of the cage mounting portion 9 by a hinge 13.
[0011]
As shown in FIG. 3, the box-shaped breeding cage 3 is, for example, an upwardly opened box formed of transparent plastic, and an edge 14 formed in a bowl shape toward the outside is provided on an upper peripheral edge. It has been. The edge portion 14 is provided with a full mesh-like lid 15 made of, for example, stainless steel.
[0012]
1 and 2, the air supply pipe 17 serving as an air supply part is made of a pipe material, and is located approximately 2 to 6 cm above the edge part 14 of the box-shaped breeding cage 3 placed on the cage placement part 9. As shown in FIGS. 4 and 5, the box-shaped breeding cage 3 is moved from the back plate 5 of the breeding shelf frame 2 to the position of one side plate 6 of the breeding shelf frame 2 or the side of the partition plate 10. It protrudes forward in the insertion direction. The length of the air supply pipe 17 in the breeding shelf frame 2 is formed substantially equal to the length of the box-shaped breeding cage 3 in the front-rear direction. Further, the air supply pipe 17 has a nozzle hole 20 directed to the inner surface or the bottom plate 19 of one side plate 18 (FIG. 3) of the box-shaped breeding cage 3 or both the inner surface and the bottom plate 19 of the one side plate 18. A plurality of plugs 21 are formed in the longitudinal direction, and a plug 21 is fitted to the tip as shown in FIG. The air supply pipe 17 is connected to an air supply source such as a blower (not shown), and the air sent from the air supply source is the inner surface or the bottom plate 19 of the side plate 18 of the breeding cage 3, or the inner surface and the bottom plate 19 of the side plate 18. It has come to hit both.
[0013]
In FIG. 6, the air blown into the breeding cage 3 flows as shown by arrows in FIG. 5, rises out of the breeding cage 3, and then is discharged to the outside through the gap of the cage mounting portion 9. The Further, as shown in FIG. 7, an exhaust passage 23 made of a plate material using the back plate 5 is formed on the back side of the back plate 5 of the breeding shelf frame 2, and a part of the back plate 5 corresponding to the cage mounting portion 9 is formed. An opening made of a punching metal 24 or the like may be provided, and dirty air in the breeding cage 3 placed on the cage placing portion 9 may be discharged through this portion.
[0014]
Since the small animal breeding apparatus 1 is configured as described above, when the box-shaped breeding cage 3 is inserted into the cage placement section 9 of the breeding shelf frame 2, the air supply pipe 17 is connected to the edge 14 of the box-shaped cage 3. It will be located at a predetermined height above. And the lid | cover 12 is raised and the cage mounting part 9 is substantially sealed. Then, the air supply from the nozzle hole 20 of the air supply pipe 17 is blown out toward the inner surface of the side plate 18 or the inner surface of the bottom plate 19 of the box-type breeding cage 3 or both the inner surface of the side plate 18 and the inner surface 19 of the bottom plate. The air blown to any position in the shape breeding cage 3 is sufficiently circulated and flows as indicated by the arrows in FIG. 5, and the dirty air in the cage 3 passes through the gaps in the shelf frame 2. Alternatively, it is discharged to the outside through the opening 24 and the exhaust passage 23 shown in FIG. Therefore, the air in the box-shaped breeding cage 3 is always kept clean. The air supply unit 17 is not necessarily a pipe, and may be configured by providing a ceiling serving as an air passage above the cage mounting unit 9 and forming the nozzle hole 20 on the lower surface of the ceiling. .
[0015]
【The invention's effect】
In the present invention, since the upper part of the box-shaped breeding cage is open, the odor caused by small animals is pushed out by the injection of air into the breeding cage, so that the waste can be removed from the box-shaped breeding cage and the ammonia concentration can be lowered. Therefore, the number of small animals in each breeding cage can be increased. And, since the air supply part is arranged at a predetermined height above the upper edge of the box-shaped breeding cage, it can accommodate box-shaped breeding cages with different dimensions, from small mice to large rabbits Can be reared. Furthermore, by supplying air from the air supply unit so as to collide against the inner wall surface of the box cage, the effect of the air supply is further increased, and dirty gas, odor, etc. in the breeding cage are more effectively circulated. To the cage. In addition, since the air supply unit is only provided above each breeding cage, it does not interfere with the loading / unloading of the breeding cage and is structurally simple, so that an effect such as providing a small animal breeding device at a low cost can be obtained. It is done.
[Brief description of the drawings]
FIG. 1 is a perspective view of a small animal breeding apparatus of the present invention.
2 is an enlarged perspective view of a cage mounting portion of the small animal breeding apparatus of FIG. 1. FIG.
FIG. 3 is a perspective view of a box-shaped breeding cage.
FIG. 4 is a schematic front view of a small animal breeding apparatus.
5 is a partially enlarged cross-sectional view of FIG.
FIG. 6 is a schematic side view showing a flow of air supply from an air supply pipe.
FIG. 7 is a schematic side view showing an air supply pipe and a piping passage.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Small animal breeding apparatus 2 Breeding shelf frame 3 Box-shaped breeding cage 9 Cage mounting part 15 Partition 17 Air supply part (air supply pipe)
20 Nozzle hole 23 Exhaust passage

Claims (2)

In the small animal breeding apparatus in which the cage placement section of a plurality of box-shaped breeding cages is provided on the breeding shelf frame,
The upper part of the box-shaped breeding cage is open, and an air supply unit is disposed at a predetermined height above the upper edge of the box-shaped breeding cage, and the air supply unit is supplied to the box-shaped breeding cage. the air supply port for care provided.
The air supply unit is an air supply pipe made of a pipe material,
The air supply pipe protrudes forward in the insertion direction of the box-shaped breeding cage from the rear plate of the breeding shelf frame at a position offset to one side plate or the partition plate side of the breeding shelf frame,
The length of the supply pipe in the breeding shelf frame is formed approximately equal to the length in the front-rear direction of the box-shaped breeding cage,
A small animal breeding apparatus, wherein a plurality of nozzle holes toward the inner surface or bottom plate of one side plate of the box-shaped breeding cage are formed in the longitudinal direction of the air supply pipe .   The small animal breeding apparatus according to claim 1, wherein the air supply unit is arranged to supply air so as to blow air toward an inner wall surface of the box-shaped breeding cage.

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