JPH019400Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a filth collection belt device for a laboratory animal breeding machine that houses laboratory animals such as mice, rabbits, dogs, etc., and more specifically, to a filth collection belt device in which the back side of the belt can be washed. It is.

Traditionally, commonly used mice, rabbits,
The waste collection belt device in a belt-type automatic breeding machine for housing small experimental animals such as dogs consists of simply laying an endless belt horizontally with a head pulley and a tail pulley at both ends below a group of cages hung on a shelf. The structure is adopted. In this case, dirt adhering to the belt is allowed to fall naturally at the head position (or tail position), and a removing means such as a brush roller is brought into contact with the belt surface to forcibly scrape it off. However, in reality, dirt such as urine, feces, hair, etc. gets around to the back side of the belt and makes it dirty, so the entire belt (including the back side) needs to be cleaned regularly. As part of this cleaning process,
Since the belt body has a specified width and does not have much slack, even when cleaning the back side of the belt, the side edges only turn up a little, making it impossible to completely clean the entire back side. This means that, especially in breeding machines that use relatively large cages such as dog cages, it is not easy to remove the cages one by one, and the belts must be cleaned with the cage set, making cleaning work even more difficult. There is. If a method were adopted in which the belt was loosened by moving the set position of the head pulley or tail pulley, the centering work when resetting would be troublesome, and the belt would not actually be loosened.

In view of the above-mentioned circumstances, an object of the present invention is to provide a waste collection belt device for a laboratory animal breeding machine in which at least the carrier portion of the belt can be lifted up and down by a tail snout propeller, and the back side of the belt can be easily cleaned and disinfected. This is what I did.

That is, the present invention is a waste collection belt device in which a belt is laid below a group of cages arranged on a hanging shelf of a rearing machine body, and the back side of the belt is washed by a movable washing device. It has a tail snap roller and a tail roller arranged in the section and the return section, and a tail pulley arranged above, and has an upwardly facing inverted L-shaped right angle bending hook, and the tail snap roller can be raised and lowered by a lifting means. The carrier section is lifted when the tension of the belt is loosened, making it easy to clean and disinfect the back surface.

Hereinafter, the present invention will be explained based on the drawings of embodiments.

Reference numeral 1 denotes a breeding machine main body having an appropriate number of hanging shelves 3 (two in the illustration), and a support rail section 2 arranged on the hanging shelves 3, and a collar section having an appropriate number of cages 4 on its upper edge. 4a are suspended and arranged, and a filth collection belt device 6 consisting of an endless filth collection belt 5 that rotates laterally is installed below the cages 4 in the arrangement direction to form a breeding machine 1. This waste collection belt 5 has one end, which is the head side 5,
Head frame part 11 with dirt receiving groove 7 below
The other end of the tail side 5 is attached to the head pulley 8 of the shaft, and the tail end 5 is attached to the tail frame portion 12 with a tail snap roller 13 of the shaft mounted on the surface of the carrier portion 5a.
A tail roller 14 is brought into contact with the back surface of the return section 5b and bent upward, and the return section 5b is hooked onto a tail pulley 15 mounted above the carrier surface, thereby forming an inverted L-shaped direct bending section 9 as a whole. In this case, the back surface of the carrier portion 5a of the belt 5 is configured to run in contact with the surface of the dirt pan 16 fixed to the machine frame. 17 is the tail snout propeller 13
The lifting means 17 has a lever 18, for example, and the central pivot 18a is arranged on the tail frame part 12, and the tail nut is inserted into the elongated hole 19 bored at the tip. It has a structure that supports the shaft 13a of the prowler 13, and is configured to raise the tail-snut prowler 13 along the guide longitudinal hole 20 against pushing down of the rear end of the lever 18, thereby substantially loosening the tension on the belt 5. .

To explain this effect now, first, four groups of cages containing appropriate experimental animals are set on three hanging shelves. Urine, feces, etc. that fall from cage 4 in this state,
The dirt A such as hair is received by the carrier portion 5a of the belt 5 laid below, and the belt 5 is rotated intermittently (the motor 21 is driven intermittently by the action of a timer, etc.). As the belt 5 moves, it causes a natural fall at the return rotation position of the head pulley 8, and the shower pipe 22 provided above the head pulley 8 sprays water led from the water tank 10 at the upper end to the belt surface. Then, the remaining dirt A is scraped off with a washing brush 23 brought into contact with the return part 5b, and the dirt A is collected in the dirt receiving groove 7 and discharged to the outside. Of course, the carrier portion 5a of the belt 5 at this time
is laid horizontally with normal belt tension (the tail snout roller 13 is in the lowered position).

However, in this case, the carrier portion 5a of the belt 5 runs through the dirt pan 16 and is shower washed at the head side 5, so dirty water inevitably flows around to the back side of the belt 5, and the back side is periodically washed. must also be done. This means that, especially when conducting different types of animal experiments, it is necessary to disinfect the back surface, and it becomes necessary to loosen the tension on the belt 5.

At this time, the tail snap roller 13 of the right-angled bent portion 9 on the tail side 5 of the belt 5 is raised to loosen the tension. That is, when the end of the lever 18 serving as the elevating means 17 provided on the tail frame portion 12 is pushed down, the tail snap roller 13 supported at the tip of the lever 18 moves up with its shaft 13a along the vertically elongated hole 20. In this case, in order to fix the lever 18, a separate fixing pin 25 may be inserted into the fixing hole 24 provided in the lever 18 portion.

When the tail nut propeller 13 is in the raised position in this way, the tension on the belt is different, and the carrier section 5a can be lifted up at an angle using the head pulley 8 as a base, and the back side of the belt of the carrier section 5a is cleaned by a movable cleaning device. For example, a water hose (not shown)
It becomes possible to spray water over the entire area and clean (or disinfect) it. Of course, since the back surface of the return section 5b is exposed on the top surface, it is sufficient to simply spray water from the top surface to clean it.

This cleaning work can be facilitated if a movable cleaning device is provided with a shaft-mounted running shower pipe 26 running on the surface of the dirt pan 16, as shown in the embodiment shown in FIG. That is, this traveling shower pipe 26 is connected to the side edge 16 of the waste pan 16 in the front and back.
It has a wheel 27 that runs along the direction a, and a push lever 28 is protruded from the base end of the running shower pipe 26, and the machine runs by pushing the push lever 28 that projects laterally from the body in the longitudinal direction (belt transfer direction). In this case, the water hose 29 is connected to the push lever 28 which also serves as a guide waterway, and the cleaning water is spouted from the spout hole 26a of the traveling shower pipe 26.
In addition, the traveling shower pipe 26 is, for example, normally kept at the position of the tail frame portion 12 and at the rear end portion 16b of the dirt pan behind the tail snout propeller 13, so that it does not interfere with the rotation of the belt or removes dirt each time. It may also be carried onto the pan 16.

Here, after the above step (after raising the tail snout roller 13 and loosening the tension on the belt 5),
If the traveling shower pipe 26 is placed facing the lower surface of the carrier portion 5a and the traveling shower pipe 26 is moved toward the head side 5 in this state, the water spouted from the spout hole 26a of the traveling shower pipe 26 will spray the carrier portion 5a. It is used to wash the underside of the The washed wastewater flows toward the tip 16a of the dirt pan 16, which has a slight slope, through the gutter 16c and into the dirt receiving groove 7.
It becomes something that can be collected. After cleaning, the belt 5 is tensioned with a predetermined tension by releasing the rear end of the lever 18 and pushing down the tail snap roller 13 in the opposite manner to the above.

As mentioned above, the waste collection belt device for a laboratory animal breeding machine of the present invention has at least one end (tail side) of the belt bent at a right angle, and the tail snout propeller in contact with the carrier surface arranged at this bent part can be raised and lowered. By using a structure in which the carrier section can be lifted by loosening the belt tension as the tail snout propeller moves, if the back side of the belt becomes dirty, the belt can be loosened by lifting the tail snout propeller and moved as appropriate. Cleaning and disinfection can be easily performed by having a flexible cleaning device facing the back side of the belt. Of course, this belt loosening method loosens the belt in the middle, so there is no need for realignment (normal belts that are simply stretched with pulleys at both ends require centering). Furthermore, since the tail portion is bent upward at a right angle, there is no risk of dirty water flowing down to the tail portion side. Moreover, since the structure of the present invention is simplified, it can withstand long-term use without causing malfunctions or breakdowns, and has practical effects such as being able to be installed in ready-made breeding machines. It goes without saying that this lifting means may include appropriate means other than those shown in the drawings.

[Brief explanation of the drawing]

Figure 1 is a front view showing the main parts, Figure 2 is a side view,
FIG. 3 is a longitudinal sectional side view of the main part, FIGS. 4A and 4B are explanatory diagrams of the movable state of the belt, FIG. 5 is an explanatory diagram of the elevating means, and FIG. 6 is a slope view of the traveling shower pipe. 1... Breeding machine main body, 2... Support rail part, 3...
...hanging shelf, 4...cage, 5...waste collection belt,
5... Head side, 5... Tail side, 5a... Carrier part, 5b... Return part, 7... Dirt receiving groove,
8...Head pulley, 9...Right angle bending part, 1
3...Tail snack propeller, 14...Tail roller, 15...Tail pulley, 16...Dirty pan, 17...Elevating means.

Claims (1)

[Scope of utility model registration request] In a belt-type automatic rearing machine, in which a large number of cages are arranged on a hanging shelf, an endless waste collection belt is laid below the group of cages, and the back side of the belt is washed with a movable cleaning device, this waste collection belt is used. The tail side of the is folded at a right angle into an inverted L shape by hanging the tail side on a tail roller disposed on the carrier part, a tail roller located rearward of the tail snack propeller disposed on the return part, and a tail pulley disposed above the carrier surface. A filth collection belt device for a laboratory animal breeding machine, which has a bending part and is provided with an elevating means on the tail snout propeller, so that the entire carrier part can be tilted up with the head side as a base point by raising the tail snout propeller.