JP3100284U - Breeding equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive breeding apparatus which is excellent in workability and can reliably ventilate the inside of a breeding container.
The breeding apparatus includes a breeding container having a space therein and a shelf for accommodating the breeding container. The shelf has an air supply port 25 for supplying air to the breeding container through a ventilation space V formed above the breeding container, and an exhaust port 20 for exhausting air passing through the breeding container through the ventilation space. A partition 27b is provided at the center of the shelf in the front-rear direction to partition the ventilation space back and forth into an air supply space Va and an exhaust space Vb, and a front end of the air supply space is supplied to the air supply space. A shielding plate 26 for preventing air from leaking is provided. A rectifying plate 28 is provided at the center in the front-rear direction of the space, which hangs down from the upper surface of the breeding container.
[Selection diagram] FIG.

Description

The present invention relates to a breeding apparatus including a breeding container having a space for breeding animals therein, and a shelf for accommodating the breeding container so that the breeding container can be pulled out forward, and in particular, ensures high ventilation and workability. The present invention also relates to a breeding apparatus that can prevent unnecessary propagation of air inside and outside the breeding apparatus.

Conventionally, when breeding experimental animals or the like, a breeding device that has a breeding container having a space for breeding animals therein and a shelf for accommodating the breeding container, and breeds animals while ventilating the space is conventionally used. Although it is often used, it takes a considerable amount of time and effort to take care of animals, to attach and detach breeding containers, and to maintain the device. Therefore, the device requires high workability. On the other hand, when raising laboratory animals, from the viewpoint of preventing unnecessary infection from laboratory animals and cross-contamination between laboratory animals bred in different breeding containers, unnecessary air inside and outside the breeding apparatus is required. Propagation must be prevented. Therefore, as a breeding device that satisfies both of these requirements, for example, the following breeding device has been proposed (see Patent Document 1).
Registered Utility Model No. 3063669 (Pages 5-10, FIGS. 1-3)

構造 Fig. 5 shows the structure of this breeding device. In FIG. 5, the breeding apparatus 1 includes a shelf 2 having a shelf 2a, and a breeding container 3 that is suspended on a rail 2b provided on the shelf 2a and that opens upward. An air supply chamber 4 is formed in the shelf 2a, and an air supply port 5 for blowing out the air supplied through the air supply chamber 4 downward is opened at the front end (left side in the figure) of the shelf 2a. are doing. An exhaust duct 6 is provided at the rear end of the shelf 2, and a suction port 7 for collecting front air into the exhaust duct 6 is opened at the front end of the exhaust duct.

(5) The airflow in the breeding apparatus 1 is as shown by the arrow in FIG. That is, the clean air supplied from the air supply chamber 4 blows downward from the air supply port 5, flows into the breeding container 3 at the front end of the breeding container 3, and is discharged from the upper end of the breeding container 3 to the periphery. It is collected in the exhaust duct 6 through the suction port 7. Further, a part of the air blown out from the air supply port 5 does not flow into the breeding container 3, but forms a downward airflow at the front end of the shelf 2 as shown by an arrow A in the figure, and 1 acts as an air curtain that shuts off the inside and outside of the breeding container 3, and forms an airflow that flows backward along the side surface of the breeding container 3 as shown by an arrow B in the figure, and air discharged from the upper end of the breeding container 3 to the periphery. To the suction port 7.

By the way, in order to completely ventilate the inside of the breeding container 3, it is necessary to form an airflow in the breeding container 3 rearward along the inner wall and the bottom surface of the breeding container 3 as shown by an arrow C in FIG. Is desirable. However, in the case of the breeding device 1, a part of the air blown out from the air supply port 5 is not used for ventilation in the breeding container 3, but is used for an air curtain or the like as shown by arrows A and B in FIG. Is done. In addition, when the airflow in the breeding container 3 is set to a low flow rate, a part of the air flowing into the breeding container 3 is difficult to reach the bottom surface of the breeding container 3, and as a result, for example, as indicated by an arrow D in FIG. As shown, there is a possibility that it moves backward along the vicinity of the upper end of the breeding container 3 and is sucked into the suction port 7 without substantially contributing to the ventilation in the breeding container 3.

On the other hand, in order to reliably ventilate the breeding container 3, it is conceivable to increase the flow rate of the air blown out from the air supply port 5. However, in this case, it is necessary to appropriately adjust the flow rate of the air blown out from the air supply port 5 so that the inside of the breeding container 3 is exposed to a relatively high-speed airflow and the breeding environment of the breeding container 3 does not deteriorate. Further, in order to increase the flow rate of the air blown out from the air supply port 5, it is necessary to increase the output of the fan (blower) that feeds the air supply chamber 4. However, if the output of the fan is increased, the breeding device 1 Price and operating costs increase.

The present invention has been made in view of the above circumstances, and provides a breeding apparatus that is excellent in workability and that can reliably ventilate the inside of the breeding container while preventing the deterioration of the breeding environment and preventing unnecessary propagation of air inside and outside the breeding apparatus. The purpose is to provide it at low cost.

The present invention is a breeding apparatus including a breeding container having a space for animal breeding therein, and a shelf for accommodating the breeding container so that the breeding container can be pulled out forward, wherein the shelf is located above the housed breeding container. Through an air space formed in, an air supply port for supplying air from above to the front of the breeding container, and an exhaust port for exhausting air passing through the breeding container to the rear through the ventilation space. A partition is provided at the center of the shelf in the front-rear direction, and a partition partitioning the ventilation space into an air supply space located in front and an exhaust space located in rear is provided at a front end of the air supply space. A shielding plate is provided to prevent the air supplied to the air supply space from leaking forward, and the breeding container is capable of aspirating the air in the space via the upper surface of the breeding container. , At the center of the space in the front-rear direction, A rectifying plate hanging from the upper surface of the breeding container is provided, and when the breeding container is accommodated in the shelf, from the air supply port, through the air supply space, of the space in the breeding container, An airflow reaching the space located in front, passing below the current plate, reaching the space located behind the current plate in the space in the breeding container, and further reaching the exhaust port via the exhaust space is formed. It is characterized by being done.

In this case, a cover that covers the exhaust space from above may be housed in the exhaust space so as to be drawn out forward, and the partition may be a projection that hangs downward from the front end of the cover.

Further, the current plate may be provided at a position vertically overlapping the partition when the breeding container is accommodated in the shelf so as to be swingable back and forth with its upper end as a fulcrum. Alternatively, the rear surface of the breeding container is covered with a ventilable lid, and the rear surface of the feeding and water supply recess provided on the lid so as to protrude from the upper surface of the breeding container into the space is provided with the rectifying plate. It may be.

遮蔽 In addition, it is desirable that the shielding plate be provided so as to be able to swing back and forth with its upper end as a fulcrum. More preferably, the shielding plate is provided at a position vertically overlapping the front end of the breeding container when the breeding container is accommodated in the shelf.

In the breeding device of the present invention, when the breeding container is stored on the shelf, the space from the air supply port to the space located in front of the rectifying plate in the space in the breeding container through the air supply space and below the rectifying plate. After that, an airflow reaching the exhaust port through the exhaust space to the space located behind the current plate in the space inside the breeding container is formed. As a result, the inside of the breeding container can be reliably ventilated along the airflow without unnecessarily increasing the flow rate of the air supplied from the air supply port. Unnecessary leakage of air to the outside of the breeding apparatus is prevented by the shielding plate provided at the front end of the air supply space.

カ バ ー In addition, by covering the exhaust space with a cover that covers the exhaust space from above so as to be able to be pulled out forward, dirt on a portion of the shelf located above the exhaust space is prevented by the cover.

In addition, the rectifying plate is provided at a position vertically overlapping the partition wall when the breeding container is stored on the shelf so as to be able to swing back and forth with its upper end as a fulcrum, so that the rectifying plate can be used for work and animal movement in the space. Do not disturb etc.

Alternatively, when the rear surface of the feeding and water supply recess provided on the lid that covers the upper surface of the breeding container so as to protrude into the space from the upper surface of the breeding container is a rectifying plate, and the rectifying plate is formed of a dedicated member. Therefore, the structure of the breeding container is simplified, and the number of parts of the breeding container is reduced. Therefore, it is possible to provide the breeding container at a lower cost. Further, since the current plate can be attached and detached together with the lid, workability is also improved.

Furthermore, by providing the shielding plate so as to be able to swing back and forth with its upper end as a fulcrum, the shielding plate does not hinder the attachment and detachment of the breeding container and the cover. Further, by providing the shielding plate at a position vertically overlapping the front end of the breeding container when the breeding container is stored on the shelf, leakage of air supplied to the air supply space to the front is more reliably prevented. .

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an example of the breeding apparatus according to the present invention, and FIG. 2 is a side view of the breeding apparatus taken along an arrow II in FIG. 1 (however, a side wall of a shelf is omitted to show the internal structure. FIG. 3 is an enlarged view of the shelves and the breeding containers accommodated in the shelves along the front-back direction. In this specification, the left-right direction in FIG. 1 is defined as left and right, and the front-rear direction in FIG.

The breeding apparatus 11 has a rectangular shape that opens forward, a shelf 12 having horizontal shelves 12a extending left and right at predetermined intervals vertically, a shelf 12a (and a bottom plate 12c provided at the lowest stage of the shelf). ) And a breeding container 13 placed so as to be able to be pulled out forward. On the lower surface of the shelf board 12a, a rail 12b projecting downward, forming an L-shape (provided at both right and left ends of the shelf board 12a) or an inverted T-shape (other than that) when viewed from the end face. However, when the breeding containers 13 are stored in the shelf 12, they are extended back and forth at predetermined intervals so as to surround the upper end of each breeding container 13 from the left and right. The breeding apparatus 11 of the present embodiment is used for breeding small animals such as mice, and can house six breeding containers 13 on the left and right in eight stages vertically.

The top plate 12d of the shelf 12 has the same structure as the shelf plate 12a, and the air supply filter device 15 and the exhaust filter device 16 each including the HEPA filter 14 are mounted on the top plate 12d. From the air supply filter device 15, a duct 17 for conveying clean air is extended downward along one side surface of the shelf 12, and the duct 17 is provided at the front of the top plate 12c and the shelf plate 12a. One end of each of the vents 18 extending to the left and right is connected to each other. The upper end of a duct 19 extending vertically along the back surface 12 e of the shelf 12 is connected to the exhaust filter device 16, and the duct 19 is individually connected when the breeding container 13 is stored in the shelf 12. One end of each of a plurality of exhaust ports 20 arranged at predetermined intervals on the back surface 12e of the shelf 12 so as to be located behind the breeding container 13 is connected to each other. The member denoted by reference numeral 20 a in FIG. 1 is a prefilter attached to the front surface of the exhaust port 20.

On the back surface 12e side of the shelf 12, a water supply pipe 21 extending from a water inlet 21a opening above the top plate 12d is zigzag so as to extend horizontally behind a rearing container 13 accommodated in the shelf 12. In addition to being provided, a plurality of water supply nozzles 22 are fitted from the pipes 21 to water supply ports (not shown) that open on the side surfaces of the individual breeding containers 13 when the breeding containers 13 are stored in the shelves 12. It protrudes forward at a predetermined interval so as to match. Reference numeral 21b denotes a drain port of the pipe 21, which is opened above the bottom plate 12c. The piping 21 and the water supply nozzle 22 constitute an automatic water supply device for animals in the breeding container 13. Reference numeral 23 denotes a caster for movement provided at each of the four corners of the bottom plate 12c, and reference numeral 24 denotes a pedestal for supporting the shelf 12 provided inside the left and right directions of the caster 24 located at the front.

On the lower surface of the shelf plate 12a (or the top plate 12d), a plurality of air supply ports 25 communicating with the ventilation holes 18 are provided above the front portions of the individual breeding containers 13 when the breeding containers 13 are stored on the shelf 12, respectively. They are formed at predetermined intervals so as to be located. Further, in front of each air supply port 25, a shielding plate 26 extending left and right at a position vertically overlapping the front end of the breeding container 13 when the breeding container 13 is stored on the shelf 12 is indicated by a dotted line in FIG. As shown, it is hung forward from the upper end thereof as a fulcrum. Here, the size of the shielding plate 26 is set to such an extent that the breeding container 13 accommodated in the shelf 12 and the breeding container 13 during the operation of taking in and out of the shelf 12 do not interfere with the shielding plate 26. The shielding plate 26 may be swingable back and forth.

With the storage of the shelf 12 in the breeding container 13, the lower surface of the shelf plate 12 a (or the top plate 12 d), the rear surface 12 e of the shelf 12, and the rails 12 b located on the left and right sides of the breeding container 13 are provided above the breeding container 13. , A ventilation space V surrounded by the shielding plate 26 is formed.

At the back of the ventilation space V (on the back surface 12e side), as shown in FIG. The cover 27 is disposed horizontally with its left and right ends locked to the rails 12b. As shown by reference numeral (a) in FIG. 3, the cover 27 moves the wall 27 a and the projection 27 b downward, and moves the projection 27 b backward until the projection 27 b comes into contact with the back surface 12 e of the shelf 12. As a result, of the lower surface of the shelf plate 12a, a predetermined range on the rear surface 12e side (a range corresponding to the upper part of the exhaust space described later) and the rear surface 12e of the shelf 12 The upper side is covered by a cover 27. On the other hand, the symbol (b) in FIG. 3 indicates a state in which the cover 27 is drawn forward along the extending direction of the rail 12b.

Here, the total length (length L in the front-rear direction) of the cover 27 is such that when the cover 27 is disposed at the predetermined position, the protrusion 27 b (Above the central part in the front-rear direction of the reared breeding container 13). The size of the wall portion 27a is set such that when the cover 27 is arranged at the predetermined position, the wall portion 27a covers the upper part of the rear surface 12e of the shelf 12 above the exhaust port 20 from the front, The size of the projection 27b is set to such an extent that the projection 27 does not interfere with the breeding container 13 accommodated in the shelf 12 and the breeding container 13 during the operation of taking in and out of the shelf 12. By disposing the cover 27 at the predetermined position, the ventilation space V is partitioned into an air supply space Va located in front of the projection 27b and an exhaust space Vb located behind the projection 27b.

The breeding container 13 has a rectangular shape that opens upward. The inside of the breeding container 13 is a space S for breeding animals, and a horizontal flange portion 13a is formed on the outer peripheral edge of the upper end. Further, the space S is covered from above with a ventilable lid 13b abutting on the flange portion 13a from above, and a recess 13c for feeding and water supply is provided on the front side of the lid 13b on the upper surface of the breeding container 13. Is provided so as to protrude into the space S. Reference numeral 13d is a clip for locking the lid 13b to the flange portion 13a. Further, in the breeding apparatus 11 according to the present invention, the rectification extending to the left and right at the center in the front-rear direction of the space S (more precisely, at a position vertically overlapping the projection 27b when the breeding container 13 is stored on the shelf 12). A plate 28 depends from the lid 13b. The current plate 28 can swing back and forth with its upper end as a fulcrum, as shown by an arrow E in FIG. Here, the size of the rectifying plate 28 is set to such a degree that a rectifying effect as described later is exerted and that the rectifying plate 28 does not hinder animal breeding or work in the space S.

In the breeding device 11, the clean air supplied from the air supply filter device 15 is supplied from above to the air supply space Va via the duct 17, the ventilation port 18, and the air supply port 25. Through the space S, it flows into a space surrounded by an inner wall on the front side of the breeding container 13 and the rectifying plate 28 (portion indicated by reference numeral Sa in FIG. 3), and further passes below the rectifying plate 28, In the space S, after flowing into the exhaust space 13 through a space surrounded by the inner wall on the rear side of the breeding container 13 and the rectifying plate 28 (a portion indicated by the symbol Sb in FIG. 3), the space S is again passed through the lid 13b. The exhaust gas reaches the exhaust port 20 and is discharged from the exhaust filter device 16 through the duct 19.

That is, according to the breeding apparatus 11, the airflow from the air supply port 25 to the exhaust port 20 via the air supply space Va, the space Sa, the space Sb, and the exhaust space Vb as shown by an arrow F in FIG. It is formed. Since this air flow goes rearward along the inner wall and bottom surface of the breeding container 13, it is possible to reliably ventilate the breeding container 13 along this air flow. In particular, since the airflow in the space S is forcibly rectified in an appropriate direction in advance by the rectifying plate 28, even if the flow velocity of the air supplied from the air supply port 25 is low and the airflow is turbulent, The inside of the breeding container 13 is reliably ventilated. Similarly, the flow rate of the air supplied from the air supply port 25 and the flow rate of the air exhausted from the exhaust port 20 do not need to be increased more than necessary. Can be used, and the price and operation cost of the breeding apparatus 11 are suppressed.

In addition, a ventilation space V surrounded by the lower surface of the shelf plate 12a (or the top plate 12d), the back surface 12e of the shelf 12, the rail 12b, and the shielding plate 26 is formed above the breeding container 13. The ventilation space V is partitioned by the projection 27b into an air supply space Va located in front of the projection 27b and an exhaust space Vb located behind the projection 27b. As a result, the space V, Va, Vb Preventing unnecessary leakage of air also helps to improve ventilation efficiency and prevent cross-contamination. In particular, by providing a shielding plate 26 at the front end of the air supply space Va for preventing the air supplied to the air supply space Va from leaking forward, air such as an air curtain can be discharged outside the breeding apparatus 11. Even without providing a leaking means, the air path from the air supply space Va to the exhaust space Vb via the space S is shut off from the outside air. Therefore, the odor or the like in the space S does not leak outside the breeding apparatus 11. In this case, by providing the shielding plate 26 at a position vertically overlapping the front end of the breeding container 13 when the breeding container 13 is stored on the shelf 12, leakage of air supplied to the air supply space Va to the front is prevented. More reliably prevented.

At the time of ventilation, the amount of air exhausted from the exhaust port 20 is made relatively larger than the amount of air supplied from the air supply port 25, so that the air in the spaces S, V, Va, and Vb is discharged. Stagnation is prevented. As a result, the air in the space S can be ventilated more efficiently, and the leakage of the air from the spaces S, V, Va, and Vb is more reliably prevented.

Further, by providing the shielding plate 26 so as to be able to swing forward with the upper end thereof as a fulcrum, the shielding plate does not hinder the attachment and detachment of the breeding container 13 and the cover 27. Similarly, by providing the current plate 28 so as to be able to swing back and forth with its upper end as a fulcrum, the current plate 28 does not hinder animal breeding or work in the space S.

The cover 27 that covers the exhaust space Vb from above is housed in the exhaust space Vb so as to be able to be pulled out forward, so that a portion of the shelf 12 that is located above the exhaust space Vb (a part of the lower surface of the shelf plate 12a). , A predetermined range on the back surface 12e side) is prevented by the cover 27. In addition, since the upper side of the exhaust port 20 of the back surface 12e of the shelf 12 is covered by the wall 27a of the cover 27, the same cover 27 can also prevent the contamination of this portion. . These parts are parts to which dirt is likely to adhere due to the blow of the airflow from the space Sb toward the exhaust space Vb. However, if the parts are covered with the detachable cover 27 as described above, only the cover 27 is appropriately removed and washed. By doing so, the inside of the apparatus can be easily cleaned.

Note that the present invention is not limited to the above embodiment, and it is needless to say that the present invention can be arbitrarily changed according to a specific use environment and the like without departing from the gist of the present invention. For example, instead of the rectifying plate indicated by reference numeral 28 in FIG. 3, the rear surface of the recess 13c (the range indicated by reference numeral G in FIG. 3) may be a plate-shaped rectifying plate. With this rectifying plate, the same effect as that of the rectifying plate indicated by reference numeral 28 can be obtained. Furthermore, the rear surface of the concave portion 13c is formed as a rectifying plate, so that the structure of the breeding container 13 is simplified as compared with the case where the rectifying plate is constituted by a dedicated member as indicated by reference numeral 28, and the parts of the breeding container 13 are provided. Since the score is reduced, the breeding container 13 can be provided at a lower cost. In addition, since the current plate can be attached and detached together with the lid 13b, workability is also improved.

In addition, instead of the protrusion 27b formed on the plate 27, a partition wall extending left and right is provided at the center of the lower surface of the shelf 12 in the front-rear direction, as indicated by reference numeral 29 in FIG. The air space Va and the exhaust space Vb may be partitioned. With the partition wall 29, the same effect as that of the projection 27b can be obtained. Alternatively, similarly to the plate 27, the breeding container 13 may be suspended from the left and right rails 12b via the flange portion 13a.

It is a front view which shows the example of the breeding apparatus which concerns on this invention. FIG. 2 is a partial cross-sectional view of the breeding apparatus shown in FIG. 1 along an arrow II in FIG. 1. FIG. 2 is a partially enlarged cross-sectional view of a shelf and a rearing container accommodated in the shelf in the rearing device shown in FIG. 1 along a front-rear direction. FIG. 2 is a top perspective view of a plate used in the breeding apparatus shown in FIG. 1. It is an enlarged view along the front-back direction of the shelf and the breeding container stored in the shelf which shows the example of the conventional breeding apparatus.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 11 Breeding apparatus 12 Shelf 13 Breeding container 13b Lid 13c Concave part 20 Exhaust port 25 Air supply port 26 Shielding plate 27 Cover 27b, 29 Partition (projection)
S space V ventilation space Va air supply space Vb exhaust space

Claims (6)

A breeding apparatus including a breeding container having a space for breeding animals therein, and a shelf for accommodating the breeding container so as to be able to be pulled out forward,
The shelves are provided with an air supply port for supplying air from above to the front of the breeding container, and an air passing through the breeding container through the ventilation space formed above the accommodated breeding container. An exhaust port that exhausts backward through the ventilation space,
At the center in the front-rear direction of the shelf, a partition is provided to partition the ventilation space into an air supply space located in the front and an exhaust space located in the rear, and at the front end of the air supply space, A shielding plate is provided to prevent air supplied to the air space from leaking forward.
The breeding container allows air in the space to be evacuated through the upper surface of the breeding container, and a rectifying plate that hangs down from the upper surface of the breeding container is provided at the center in the front-rear direction of the space. ,
When the breeding container is accommodated in the shelf, the breeding container passes through the air supply space, reaches the space located in front of the rectifying plate in the breeding container, and is located below the rectifying plate. A breeding apparatus, wherein an airflow is formed from the space in the breeding container to a space located behind the straightening plate through the exhaust space, and further to the exhaust port through the exhaust space. 2. The exhaust space, wherein a cover that covers the exhaust space from above is housed so as to be able to be pulled out forward, and the partition is a projection that hangs downward from a front end of the cover. A breeding apparatus according to claim 1. The rectifying plate is provided at a position vertically overlapping the partition when the breeding container is accommodated in the shelf so as to be able to swing back and forth with its upper end serving as a fulcrum. A breeding apparatus according to claim 1. The upper surface of the breeding container is covered with a ventilable lid, and the rear surface of the feeding and water supply recess provided on the lid so as to protrude from the upper surface of the breeding container into the space is the rectifying plate. The breeding apparatus according to claim 1 or 2, wherein (5) The breeding apparatus according to any one of (1) to (4), wherein the shielding plate is provided so as to swing back and forth with its upper end serving as a fulcrum. The breeding device according to any one of claims 1 to 5, wherein the shielding plate is provided at a position vertically overlapping a front end of the breeding container when the breeding container is accommodated in the shelf. apparatus.

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