JPH0425960Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a laboratory animal breeding room consisting of a rack room for housing laboratory animals and a work room for workers to work. This invention relates to an automatic airflow regulating device for a laboratory animal breeding room, which supplies air to a working room through the working room, vents the air from the working room to a rack room, and then exhausts it to the atmosphere through an exhaust duct.

(b) Conventional technology As shown in Figure 9, in conventional laboratory animal breeding rooms, air flows from the air inlet on the ceiling to the exhaust outlet at the bottom of the side wall, but it is difficult to accommodate experimental animals. Because the room and the work room where workers work are not separated, the air is not regulated to flow in one direction from the work room to the rack room. There is circulating airflow that circulates between the rack rooms, backflow that flows back from the rack room to the work room, and stagnant air that accumulates in the corners of the ceiling. Air containing a lot of dust and bacteria and having a strong odor flows into the work room from passing through cages and the body surfaces of experimental animals. As a result, not only was the work environment extremely poor for researchers, breeding managers, and other workers working in the work room, but it was also not a favorable habitat for the animals.

(c) Problems to be solved by the invention The problem to be solved by the invention is to solve the problem in a laboratory animal breeding room that separates a rack room where laboratory animals are housed and a workroom where workers work. The clean air that is blown out passes through the rack room and is discharged to the outside world, and the air is circulated within the breeding room and regulated so that it flows in one direction without backflow, stagnation, or agitation. The purpose of the present invention is to provide an automatic airflow adjustment device for a laboratory animal breeding room that maintains the indoor air condition clean and thereby maintains a good working environment and living environment for the farmed animals.

(d) Means for solving the problem The present invention was made by focusing on the problems of the conventional methods as mentioned above, and consists of a work room and a rack room separated by a partition plate suspended from the ceiling and a sliding door. an air supply hole provided in the ceiling of the work room for supplying clean air through an air supply duct, and an air supply hole provided in the ceiling of the rack room for discharging the air circulated within the breeding room through an exhaust duct. a rack having a required number of shelves installed at required intervals in the rack room, a cage placed on the shelves of the rack, and a sliding door that can be freely slid. two parallel slide rails laid on the front edges of the upper and lower racks in order to allow the sliding doors to stand upright; an opening drilled in each of the sliding doors; and an opening on the side of the rack room of the sliding doors. and an airflow retaining plate attached to the upper side so as to be able to open and close freely, and an airflow retaining plate attached to the front sliding door that is guided by at least the slide rail on the working room side of the sliding door. The object of the present invention is to provide an automatic airflow adjustment device for a laboratory animal breeding room, in which the width between both sides of the device is cut so that it becomes narrower from the top side to the bottom side.

(e) Effects and Embodiments Hereinafter, the structure of one embodiment of the present invention will be explained together with its effects with reference to the drawings.

As shown in FIG. 1, a breeding room 1 is partitioned by a partition plate 3 suspended from the ceiling 2 and a sliding door 4 to form a work room 5 and a rack room 6. The ceiling 2a of the working room 5 is provided with an air supply hole 8 for supplying clean air through an air supply duct 7.
An exhaust duct 10 is provided for discharging the air circulating in the chamber 1 from an exhaust hole 9. In the rack chamber 6, a required number of shelf boards 11 are installed at predetermined intervals to form a rack 12.
A cage 13 is arranged on the shelf board 11 of the.

As shown in FIGS. 2 and 3, the sliding door 4 is erected so that it can slide freely on two parallel slide rails 14 laid on the front edges of the upper and lower racks, and is completely closed. When the sliding doors 4 are adjacent to each other, the sliding doors 4 are partially overlapped with each other to minimize the flow of air in and out of that area. Each of the sliding doors 4 has an opening 15 formed near its center. The sliding door 4
On the back side of the opening 15 on the rack room side is the opening 1.
An airflow retaining plate 16 having a size that covers the airflow retaining plate 1 is attached at the upper side by a hinge 17.
6, the opening 15 of the sliding door 4 can be opened and closed freely.

In this case, the airflow retaining plate 1 is attached to the front sliding door 4a guided by the slide rail 14a on at least the front working room 5 side of the sliding door 4.
As shown in FIGS. 4 and 5, 6a is cut so that the width between both sides 18 thereof becomes narrower from the upper side to the lower side.

The air flow retaining plate 16 is provided with a large number of small holes 19, as shown in FIG.

As the cage 13, a wire mesh cage 13a as shown in FIG. 7 or a plastic cage 13b as shown in FIG. 8 is used.

Since the present invention is constructed as described above, clean air is supplied to the work chamber 5 from the air supply hole 8 via the air supply duct 7, and the worker can perform the necessary operations in the atmosphere where the clean air is supplied. can perform the following tasks. On the other hand, the air in the rack chamber 6 is forcibly discharged to the outside through the exhaust hole 9 and the exhaust duct 10, so that the air in the work chamber 5 is
Due to the pressure difference between the airflow retaining plate 1 and the rack chamber 6,
6 is pushed open, the liquid flows into the rack room 6 through the opening 15 of the sliding door 4, and is supplied to the animals in the cage 13. The air that has flowed into the rack chamber 6 is discharged to the outside through an exhaust duct 10 from an exhaust hole 9 in the upper part of the rack chamber 6, including odors and dust generated from the animals kept in the cage 13.

In this state, when an operator slides the sliding door 4 at a required location in the work room 5 laterally to open it and handles the animals in the cage 13 inside the rack room 6, naturally there is a large amount of space in that area. Since an open space is created, a large amount of air from the work chamber 5 having a relatively high pressure initially flows into the rack room 6 through the open space. In that case, the pressure difference between the work room 5 and the rack room 6 will rapidly decrease, so all the airflow retaining plates 16 will be in a vertical state due to their own weight and will close the openings 15 of each sliding door 4. This natural sealing prevents the contaminated air in the rack chamber 6 from flowing back into the work chamber 5.

As mentioned above, before the airflow retaining plate 16 of each sliding door 4 is opened, it is pushed open toward the rack room due to the pressure difference between the work room 5 and the rack room 6, so the sliding door 4 is pushed open toward the rack room. When opening the door 4 by sliding it laterally, the airflow retaining plate 16a attached to the front sliding door 4a guided by the slide rail 14a on the front immediate working room 5 side is shown in FIGS. 4 and 5. As shown in , it hits the side of the rear sliding door 4b guided by the slide rail 14b on the side of the rear quick-rack compartment 6, but the first position it hits is the upper end of the side of the airflow retaining plate 16a with a small opening distance;
Thereafter, as the front sliding door 4a moves in the opening direction, it sequentially moves below the airflow retaining plate 16a, and accordingly pushes down the airflow retaining plate 16a in the vertical direction, that is, in the direction that closes the corresponding opening 15. , so that the rear sliding doors 4b can be smoothly passed by each other without any trouble.

In this case, there is no problem as air naturally flows into the rack room from the open sliding door 4 as described above, but all other air flow retaining plates 16 except for the open sliding door 4 are at their open ends. 15 is lightly closed and placed in a nearly airtight state. However, during this time, air flows into the rack chamber through the small holes 19 of each airflow retaining plate 16, thereby ensuring the minimum air supply necessary to support the life of the farmed animal.

(f) Effect of the invention As is clear from the above explanation, the present invention is designed to prevent air from blowing into the work room in a laboratory animal breeding room that separates the rack room where laboratory animals are housed and the work room where workers work. By regulating the air flow in one direction so that the clean air always passes through the rack room and is exhausted to the outside world, the air condition in the breeding room can be maintained clean, thereby maintaining a proper, good and healthy air condition. It is possible to secure a working environment for workers and a habitat for domestic animals.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory view showing the configuration of an embodiment of the present invention and the flow of air flowing in the direction of the arrow, Fig. 2 is a front explanatory view of the main part showing the configuration of a sliding door, and Fig. 3 is a cross-sectional view of the main part. Explanatory drawings, Fig. 4 is a front explanatory view of main parts showing the configuration of the front sliding door, Fig. 5 is a plan view of the same, Fig. 6 is a front view showing an example of the airflow retaining plate, and Fig. 7 is a front view of the main part showing the configuration of the front sliding door. FIG. 8 is a cross-sectional view of the main part when a plastic cage is used, and FIG. 9 is a structural diagram showing an example of a conventional configuration. 1... Breeding room, 2... Ceiling, 3... Partition plate, 4
...Sliding door, 5...Work room, 6...Rack room, 7
...Air supply duct, 8...Air supply hole, 9...Exhaust hole,
10... Exhaust duct, 11... Shelf board, 12... Rack, 13... Cage, 14... Slide rail, 15... Opening, 16... Airflow retaining plate, 17
...Hinge, 18...Side surface of airflow retaining plate, 19...
Small hole.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A breeding room 1 which is divided into a work room 5 and a rack room 6 by a partition plate 3 hanging from the ceiling 2 and a sliding door 4, and a ceiling 2a of the work room 5. An air supply hole 8 is provided to supply clean air through an air supply duct 7, and an air supply hole 8 is provided in the ceiling 2b of the rack room 6 to exhaust air circulating in the rearing room 1 through an exhaust duct 10. an exhaust hole 9; a rack 12 having a required number of shelves 11 installed at predetermined intervals in the rack chamber 6;
a cage 13 disposed on the shelf board 11 of the rack; two parallel slide rails 14 laid on the front edges of the upper and lower racks in order to allow the sliding door 4 to slide freely in a sliding manner; An opening 15 is formed in each of the sliding doors 4, and an airflow retaining plate 1 is attached to the rack room side of the sliding door 4 to cover the opening 15 and to be able to open and close at the upper side.
6. An automatic airflow adjustment device for a laboratory animal breeding room, characterized by comprising: (2) A front sliding door 4a guided by at least the slide rail 14a on the work room 5 side of the sliding door 4;
The airflow retaining plate 16a attached to the airflow retaining plate 16a is cut in such a manner that the width between both sides 18 thereof becomes narrower from the upper side to the lower side. Automatic room airflow adjustment device.