JPH019402Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a clean air supply device used in a breeding rack for laboratory animals such as guinea pigs and rats.

(Prior Art) The above-mentioned breeding rack device is constructed by holding a plurality of breeding cages in each shelf frame arranged in multiple upper and lower stages, and supplies clean air to these breeding cages. However, in the past, an air supply duct was arranged at the rear side of each shelf frame of the breeding rack device, and a distribution duct for distributing clean air to each air supply duct was attached to the vertical frame of the breeding rack device. Furthermore, a main pipe extending from a clean air supply source is connected to this distribution duct, and clean air is pumped from this main pipe to each air supply pipe via the distribution duct.
The air was ejected from the blow hole of each air pipe into each breeding cage and passed through the cage. However, such a clean air supply system has the disadvantage that piping must be installed directly for each breeding cage in the breeding rack system, which makes the piping extremely complicated and the construction cost very high.

There is a clean air supply device as described in, for example, Japanese Utility Model Application Laid-Open No. 52-36169, which can overcome these drawbacks. In this device, a box-shaped casing with an air supply chamber inside is integrally installed on the rear side of the breeding rack device, and inside this casing,
In addition to installing a blower to introduce outside air, a filter for removing dust from the outside air and a filter for purifying the air in the air supply room are installed, and the clean air in the air supply room is fed through a rectifier plate on the front of the air supply room. This allows for simultaneous supply to all breeding cages in the shelf system. Further, although the clean air supply device itself is the same as that described above, a clean air supply device that is separate from the rearing rack device and can be separated therefrom is described in Japanese Utility Model Publication No. 57-44837.

(Problem to be solved by the invention) According to the above-mentioned clean air supply system, the advantage is that the overall structure is simpler and the construction cost is lower than that of a laboratory animal rearing rack system that requires piping for each cage. However, such a clean air supply device is a so-called integrated device in which the blower and filter are all housed in one box-shaped casing with a front surface that corresponds to the size of the rear surface of the breeding rack device. However, since one device is required for each breeding rack device, if the number of breeding rack devices used increases, it is necessary to prepare a clean air supply device for the number of breeding rack devices. If the size changes, it is necessary to use a device with a casing of a corresponding size, which increases equipment costs and makes maintenance, including filter cleaning and replacement, quite troublesome. It was hot.

An object of the present invention is to provide a clean air supply device that can solve these problems.

(Means for solving the problem) In order to achieve the above object, the clean air supply device for a real animal breeding rack device of the present invention has a front plate, a rear plate, upper and lower end plates, and left and right side end plates. A plurality of clean air blowing panel units are formed in a panel shape and have a large number of blowholes provided over the entire surface of the front plate, and the air sucked from the suction port is cleaned with a filter and the clean air is sent to the outlet. a blower unit for supplying clean air to one of the above-mentioned clean air blowing panel units via an air supply pipe,
Each clean air blowing panel unit is disposed facing the rear side of the laboratory animal rearing rack apparatus, and is connected to each other so as to be disconnectable through communication ports provided in the side end plates of the panel unit. It is characterized by being familiar.

(Example) An example of the present invention will be described below based on the drawings.

FIG. 1 shows a clean air supply device installed along a side wall W in the breeding room, and FIG. 2 shows the main parts of this device as seen from the front. In these figures, 1A, 1B, and 1C are clean air jetting panel units, and 2 is a blower unit.

Clean air blowout panel unit 1A, 1B, 1C
As shown in FIGS. 2 and 3, each includes a front plate 3, a rear plate 4, upper and lower end plates 5, 6, and left and right side end plates 7, 8 made of metal or synthetic resin, respectively. The front panel 3 has a large number of blowholes 9 arranged vertically and horizontally at predetermined intervals, and has a hollow section inside. 10 is divided into a guide duct part 10a and a wind tunnel part 10b occupying most of the hollow part 10 by a horizontal bulkhead plate 11 provided in the upper part thereof. A port 12 is provided. A synthetic resin roof plate 13 is attached to the upper end plate 5 of each clean air blowout panel unit so as to protrude forward a required length, and the left end clean air blowout panel unit 1A
Transparent sleeve plates 14, 14 made of acrylic resin or the like for preventing turbulence are provided on the left end plate 7 of the left side end plate 7 and the right side end plate 8 of the clean air blowing panel unit 1C at the right end, and have the same projecting length as the roof plate 13. It is installed so that it sticks out.

In addition, the clean air blowing panel unit 1A on the left end
A clean air inlet 1 is provided at the left end of the upper end plate 5.
5 is provided through the roof plate 13, and a communication port 16 is provided at the upper end of the right end plate 8 of the panel unit 1A.
Furthermore, communication ports 17 are provided at the upper ends of the left and right end plates 7, 8 of the center panel unit 1B and at the upper ends of the left and right end plates 7, 8 of the right end panel unit 1C. The right side communication port 16 of the left end panel unit 1A and the left side communication port 17 of the center side panel unit 1B are connected to each other via the connecting means 18, and similarly, the right side communication port 17 of the center side panel unit 1B is connected to each other via the connecting means 18.
and the left side communication port 17 of the rightmost panel unit 1C are connected to each other through a similar connection means, and thereby the three panel units 1A, 1
The guide ducts 10a, 10a, 10a of B and 1C are in communication with each other. For example, as shown in FIG. 4, this connecting means 18 is constructed by attaching a male-shaped cylindrical body 19 to the communication port 16 on the side of the panel unit 1A so as to protrude outward, and connecting it to the side of the panel unit 1B opposite thereto. A female cylindrical body 20 is attached to the opening 17 so as to protrude inwardly, and a ring-shaped elastic packing 21 is fitted on the outer circumferential surface of the male cylindrical pair 19. By moving 1B to the left in the figure, the male cylindrical body 1
9 is fitted into the female cylindrical body 20 so that both communication ports 16 and 17 are connected in an airtight manner. Panel unit 1B and panel unit 1C
Connecting means 18 for communicating ports 17, 17 facing each other
The same applies to Note that the right side communication port 17 in the rightmost panel unit 1C is appropriately closed.

The blower unit 2 has a blower main body (not shown) built into the casing 22, and the air sucked through the suction port 23 is filtered by a high-performance filter (not shown) capable of removing dust and sterilization. The clean air from the air outlet 24 is introduced into the guide duct 10a from the clean air inlet 15 of the panel unit 1A via the air pipe 25. It's becoming like that.

In addition, each clean air blowing panel unit 1A, 1
Leg members 26 whose height is adjustable are attached to the lower ends of B and 1C.

When using the clean air supply device having the above-described configuration, the clean air blowing panel unit 1A,
1B and 1C are attached and fixed to the side wall W in the breeding room via the attachment member 27, with the communicating ports at the ends of each guide duct 10a being interconnected by the connection means 18. Then, on the front side of these clean air blowing panel units 1A, 1B, and 1C, a rearing rack device 28A as schematically shown in FIGS. 2 and 3,
28B and 28C are arranged, and these breeding rack devices 2
The back surfaces of 8A, 28B, and 28C face each other with a slight distance between them. The front and back sides of each breeding rack device are open, and a plurality of breeding cages 30 are arranged on each shelf frame 29 provided in a plurality of upper and lower stages.
Therefore, when the blower unit 2 is operated, the air purified thereby first flows through the guide duct 1 of the leftmost clean air jetting panel unit 1A.
0a, a part of the clean air introduced here flows into the wind tunnel section 10b from the distribution port 12... and is ejected from there to the outside through the fumaroles 9..., and is ejected from these fumaroles 9... The clean air flows from the rear side of the rearing rack device 28A through each rearing cage 30 inside and escapes to the front side, while the other part of the clean air introduced into the guide duct 10a passes through the communication ports 16 and 17. The air is introduced into the guide duct 10a of the panel unit 1B on the center side, and a part of the air introduced here is transferred to the wind tunnel section 10b in the same manner as described above.
The other parts flow into the guide duct 10a of the panel unit 1C at the right end through the communication ports 17, 17, respectively, and the clean air ejected from the blowholes 9... of the panel unit 1B at the center side. Air is supplied to the rearing shelf device 28B in the same manner as described above, and clean air blown out from the blow holes 9 of the panel unit 1C at the right end is supplied to the rearing rack device 28C.
into each rearing cage 30.
Clean air will always be flowing into it. In addition, in this way, the breeding rack devices 28A, 28B,
The contaminated air that has passed through 28C and absorbed dust and fungi is sucked into the suction port of the blower unit 2, and after being purified by removing dust and sterilization through the internal filter, it is sent to the clean air blowing panel unit 1A again.
It is introduced into 1B and 1C, and the same operation is repeated thereafter.

In the embodiment described above, three clean air blowing panel units 1A, 1B, and 1C are interconnected, and three rearing rack devices 28A, 28B, and 28C are installed at positions facing each of these panel units. However, if only one breeding rack device (for example, 28A) is used, a cap-shaped blocking plate 31 is removed from the cylindrical body 16 on the panel unit 1A side via a packing 21, as illustrated in FIG. Fit it,
The cylindrical body 20 on the panel unit 1B side is fitted to this blocking plate 31, thereby blocking the communication port 16 on the panel unit 1A side and the communication port 17 on the panel unit 1B side. In this case, a partition plate similar to the transparent sleeve plate 14 for preventing turbulent flow is appropriately attached to the boundary between the panel unit 1A and the panel unit 1B.

(Effects of the invention) The clean air supply device of the present invention has a plurality of hollow clean air blowing panel units that are independent of the blower unit and are connected to each other in a manner that allows them to be disconnected from each other through communication ports, One blower unit can supply clean air to multiple laboratory animal breeding racks via these multiple panel units, minimizing the equipment costs required for blowers and filters. In addition, cleaning and replacing the filter can be easily done in one place, which is advantageous in terms of maintenance. In addition, if the number of breeding rack devices used increases, it is only necessary to add panel units as appropriate, and if the number of breeding rack devices that are not actually used among the multiple breeding rack devices installed is increased. In some cases, by blocking the communication port of the panel unit facing the unused rearing rack equipment, clean air can be supplied only to the rearing rack equipment that is actually needed, thus increasing versatility. It is very economically advantageous. Furthermore, since each panel unit is so-called panel-shaped and has a narrow depth, it does not take up much space when installed, and indoor space can be used effectively.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a clean air supply device showing an embodiment of the present invention, FIG. 2 is an enlarged front view of main parts of the device in FIG. 1, and FIG. 3 is a sectional view taken along the line -
FIG. 4 is a cross-sectional explanatory diagram showing an example of the connecting means, and FIG.
The figure is an explanatory cross-sectional view showing an example of how the blocking plate is attached. 1A, 1B, 1C...Clean air blowout panel unit, 2...Blower unit, 3...Front plate,
4... Rear plate, 5, 6... Upper and lower end plates, 7, 8...
Left and right end plates, 9... blowhole, 16, 17... communication port.

Claims (1)

[Scope of utility model registration request] A plurality of clean air jetting panel units formed in a hollow panel shape by a front plate, a rear plate, upper and lower end plates, and left and right side end plates, and in which a large number of blowholes are provided over the entire surface of the front plate. , a blower unit that cleans the air sucked from the suction port with a filter and sends this clean air from the delivery port through the air supply pipe to one of the above-mentioned clean air jetting panel units, and each clean air The ejection panel units are disposed facing each other on the back side of the laboratory animal rearing rack device, and are connected to each other so as to be disconnectable through communication ports provided in the side end plates of the panel units. Clean air supply device for breeding rack equipment.