Breeding type double-layer experimental animal isolator

Abstract

The utility model discloses a rearing type double-layer experimental animal isolator, and aims to solve the problems that a traditional single-layer rearing isolator is small in animal breeding quantity, large in occupied area and high in labor intensity due to manual excrement removal. The isolator adopts a double-layer box body structure and comprises an upper-layer box body and a lower-layer box body which are communicated with each other, and excrement receiving devices and air conditioning systems are arranged at the bottoms of the isolator. The excrement receiving device is composed of an excrement receiving disc and an excrement scraping device, and excrement is automatically cleaned to the excrement collecting box through an excrement scraping plate. A feces discharge device is arranged in the feces collection box, and a stirring paddle and an electric valve are matched with a concentric-square-shaped bent pipe, so that feces can be discharged in time, and manual intervention is reduced. The air conditioning system adopts an independent air supply system and an air exhaust system, an air supply outlet and an air exhaust outlet are optimally designed to ensure uniform airflow, the air supply outlet and the air exhaust outlet are diagonally arranged, an upper-supply and lower-return air supply mode is adopted, the air supply outlet adopts a static pressure pore plate to supply air, and the air conditioning system has the characteristics of uniform air supply, low noise and small blowing feeling to animals, and provides a good raising environment for the animals.

Description

TECHNICAL FIELD

[0001] The utility model relates to animal isolation feeding technical field more specifically, it relates to a kind of feeding type double-layer experimental animal isolator. BACKGROUND

[0002] The problems of the feeding type experimental animal isolator currently used are as follows: single-layer feeding, small number of experimental animal breeding, large floor area; manual excrement removal, high labor intensity, need for more manpower, heavy environmental pollution; such form of isolator is difficult to meet the current market demand for experimental animals, resulting in the increase of labor cost, and further increasing the cost of experimental animal breeding. INVENTION CONTENTS

[0003] The utility model overcomes the following deficiencies in the prior art: (1) single-layer feeding, small number of experimental animal breeding, large floor area; (2) manual excrement removal, high labor intensity, need for more manpower, heavy environmental pollution; a feeding type double-layer experimental animal isolator is provided, which has double-layer isolation space, can increase the number of experimental animals in a limited floor area; at the same time, it can automatically remove excrement, reduce the labor intensity of manpower, reduce the use of manpower, so as to reduce the cost of experimental animal breeding.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a feeding type double-layer experimental animal isolator, comprising: an upper box and a lower box in communication with each other; the bottom of the upper box and the bottom of the lower box are provided with a feces receiving device and an air conditioning system;

[0005] The feces receiving device comprises a feces receiving tray and a feces scraping device arranged in the feces receiving tray; one end of the feces receiving tray is provided with a feces outlet;

[0006] A feces collecting tank is arranged at one end of the lower box close to the feces outlet, and a feces discharging device for discharging feces in the feces collecting tank is arranged in the feces collecting tank;

[0007] The feces scraping device discharges the excrement in the feces receiving tray from the feces outlet, and the excrement discharged from the feces outlet falls into the feces collecting tank, and then the excrement in the feces collecting tank is discharged through the feces discharging device.

[0008] The utility model sets the feces receiving tray and the feces scraping device, which can realize the automatic cleaning function of excrement, and sets the feces discharging device, which can discharge the excrement in the feces collecting tank from the feces collecting tank in time. It can reduce the labor intensity of manpower and reduce labor cost; the double-layer box structure used in the present application can increase the feeding space in a limited space and improve the space utilization.

[0009] As preferred, the excrement scraping device comprises: chain wheel shafts arranged at two ends of the excrement receiving plate respectively, chain wheels arranged on the chain wheel shafts and chains arranged around the chain wheels; a plurality of scraping plates arranged on the chains and parallel to the chain wheel shafts; and one end of the chain wheel shaft is connected with the scraping plate motor.

[0010] The excrement scraping motor rotates to drive the chain wheel shaft to rotate, the chain wheel shaft drives the chain wheel fixed thereto to rotate, and then the chain wheel drives the chain connected thereto to rotate, the chain drives the scraping plate to move, and the scraping plate scrapes the excrement in the excrement receiving plate to the direction of the excrement outlet, so that the excrement in the excrement receiving plate is scraped out from the excrement outlet, and the excrement falls into the excrement collecting tank.

[0011] As preferred, a water flushing device is arranged at the end away from the excrement outlet.

[0012] The water flushing device can clean the excrement in the excrement receiving plate more thoroughly.

[0013] As preferred, the excrement receiving plate is arranged to be inclined downwardly toward the direction of the excrement outlet.

[0014] The inclined arrangement of the excrement receiving plate enables the excrement to be discharged more easily from the excrement outlet, and after the excrement receiving plate is washed by the water flushing device, the water in the excrement receiving plate can flow downwardly along the excrement receiving plate, so that the water drops in the excrement receiving plate can dry faster and the growth of bacteria can be reduced.

[0015] As preferred, the excrement discharging device comprises: a stirring paddle arranged in the excrement collecting tank, a stirring motor connected with the stirring paddle, and an electric valve connected with the outlet of the excrement collecting tank; and the electric valve is connected with the U-shaped bend pipe.

[0016] Under the driving of the stirring motor, the stirring paddle rotates to discharge the excrement toward the outlet of the excrement collecting tank. The electric valve controls the opening or closing of the outlet of the excrement collecting tank, the U-shaped bend pipe can generate siphon effect to accelerate the discharging speed of the excrement in the excrement collecting tank, and the water seal in the U-shaped bend pipe can isolate the air flow between the inside and outside of the isolator.

[0017] As preferred, the air conditioning system comprises a supply air system and an exhaust air system.

[0018] The supply air system comprises a fresh air inlet, a supply air high efficiency filter, a supply air fan, a supply air pipe and a supply air outlet which are sequentially connected, and a supply air airtight valve for controlling the supply air switch is arranged on the supply air pipe.

[0019] The exhaust air system comprises an old air inlet, an exhaust air high efficiency filter, an exhaust air pipe and an exhaust air outlet which are sequentially connected, and an exhaust air airtight valve for controlling the exhaust air switch is arranged on the exhaust air pipe.

[0020] The fresh air of the air conditioning system enters through the fresh air outlet, is filtered through the high-efficiency air supply filter, is then discharged through the air supply machine, then passes through the air supply pipe, and is finally discharged from the air supply outlet into the upper box and the lower box to supply air to the feeding area.

[0021] Preferably, one air supply outlet is arranged in each of the upper box and the lower box, and the two air supply outlets are communicated with the same air supply pipe.

[0022] One air exhaust outlet is arranged in each of the upper box and the lower box, and the two air exhaust outlets are communicated with the same air exhaust pipe.

[0023] The air exhaust outlet and the air supply outlet in the upper box and the lower box are arranged in an inclined manner, and the air exhaust outlet is arranged above the air supply outlet.

[0024] In the present application, a pair of air supply outlets and air exhaust outlets are arranged in each of the upper box and the lower box. The pair of air supply outlets and air exhaust outlets in the two boxes are supplied and exhausted through the same air conditioning system, so that the overall structure is more compact.

[0025] Preferably, the air supply outlet and the air exhaust outlet are diagonally arranged, the air supply outlet is arranged above the air exhaust outlet, and the air supply outlet adopts a static pressure orifice plate air supply.

[0026] The air supply outlet and the air exhaust outlet are diagonally arranged, the air supply outlet adopts a static pressure orifice plate air supply, and the air supply adopts an up-supply and down-return form, which has the characteristics of uniform air supply, small noise and small animal blowing feeling.

[0027] Preferably, the upper box and the lower box are each provided with a transfer window at one end in the length direction.

[0028] The transfer window is used for transferring the articles in the upper box and the lower box.

[0029] Preferably, a support is arranged at the bottom of the lower box.

[0030] The support can separate the lower box from the ground, and also reserve extra installation space for the manure collecting tank.

[0031] Compared with the prior art, the present application has the following beneficial effects: in the present application, the automatic cleaning function of manure can be realized through the arrangement of the manure receiving plate and the manure scraping device, and the manure in the manure collecting tank can be discharged from the manure collecting tank in time through the arrangement of the manure discharging device. The labor intensity of workers can be reduced, and the labor cost can be reduced. The double-layer box structure adopted in the present application can increase the feeding space in a limited space, and improve the space utilization rate.

[0032] By setting the air conditioning system, the upper box and the lower box can be replaced with fresh oxygen supply environment for the internal organisms, which is beneficial to the growth of the organisms. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is the front view of the utility model.

[0034] Figure 2 is the perspective view of the utility model.

[0035] Figure 3 is the structure diagram of the excrement receiving device of the utility model.

[0036] Figure 4 is the front view of the excrement receiving device of the utility model.

[0037] Figure 5 is the front view of the observation window of the utility model.

[0038] Figure 6 is the structure diagram of the air conditioning system of the utility model. DETAILED DESCRIPTION

[0039] The technical scheme of the utility model will be further described in detail below by specific embodiments and in combination with the drawings: embodiment 1: refer to Figures 1 to 6 The excrement receiving device 9 includes an excrement receiving tray 91 and a excrement scraping device arranged in the excrement receiving tray 91; one end of the excrement receiving tray 91 is provided with an excrement outlet; a excrement collecting tank 5 is arranged at one end of the lower box 2 close to the excrement outlet, and the excrement collecting tank 5 is provided with a excrement discharging device for discharging excrement in the excrement collecting tank 5;

[0040] The excrement scraping device discharges the excrement in the excrement receiving tray 91 from the excrement outlet, and the excrement discharged from the excrement outlet falls into the excrement collecting tank 5, and then the excrement in the excrement collecting tank 5 is discharged through the excrement discharging device.

[0041] A control box 1 is arranged at the top of the upper box 21, and a support 8 is arranged at the bottom of the lower box 2, and the lower box 2 is supported on the support 8. The support 8 can isolate the lower box 2 from the ground, and also can leave extra installation space for the excrement collecting tank 5.

[0042] The upper box 21 and the lower box 2 are connected by the connecting flange 7 to form a sealed box, and the outside objects are delivered through the delivery window 4. Therefore, the upper box 21 and the lower box 2 in the present application are provided with a delivery window 4 at one end in the length direction, respectively used for delivering the objects in the upper box 21 and the lower box 2.

[0043] The side wall of the upper box 21 and the lower box 2 is provided with an observation window 3, and the observation window 3 is provided with an operation sleeve 33. The observation window 3 is sealedly connected with the upper box 21 or the lower box 2 through the connector 31. The connector 31 is used for opening and closing the observation window 3, and can press the observation window 3 with the upper box 21 or the lower box 2. The observation window 3 in the present application adopts tempered glass 32 (or acrylic glass). The operation sleeve 33 comprises a sealing flange used for connecting with the observation window 3, and a plastic sleeve.

[0044] In one embodiment, the excrement scraping device comprises: chain wheel shafts 96 provided at both ends of the excrement receiving plate 91 respectively, chain wheels 95 provided on the chain wheel shafts 96, and chains 97 wound on the chain wheels 95; a plurality of excrement scraping plates 92 are provided on the chains 97 and arranged in parallel with the chain wheel shafts 96; one end of the chain wheel shaft 96 is connected with the scraping plate motor 94, the scraping plate motor 94 is connected with the chain wheel shaft 96 through a sealing shaft seal, and the sealing shaft seal penetrates the side wall of the upper box 21 and the lower box 2. The chain wheel shaft 96 is arranged along the width direction of the excrement receiving plate 91.

[0045] The excrement scraping motor 94 rotates to drive the chain wheel shaft 96 to rotate, the chain wheel shaft 96 drives the chain wheel 95 fixed thereon to rotate, then the chain wheel 95 drives the chain 97 connected therewith to rotate, the chain 97 drives the excrement scraping plate 92 to move, and the excrement scraping plate 92 scrapes the excrement in the excrement receiving plate 91 to the direction of the excrement outlet, so that all the excrement in the excrement receiving plate 91 is scraped out from the excrement receiving opening and falls into the excrement collecting tank 5.

[0046] In one embodiment, a flusher 93 is arranged at the end away from the excrement outlet. The water outlet of the flusher 93 is arranged along the width direction of the excrement receiving plate 91. The water jet of the flusher 93 can clean the excrement in the excrement receiving plate 91 more thoroughly.

[0047] In one embodiment, the excrement receiving plate 91 is arranged to be inclined downwardly toward the excrement outlet. The inclined arrangement of the excrement receiving plate 91 can make the excrement more easily discharged from the excrement outlet, and after the excrement receiving plate 91 is washed by the flusher 93, the clean water in the excrement receiving plate 91 can flow downwardly along the excrement receiving plate 91, so that the water drops in the excrement receiving plate 91 can be dried more quickly, and the breeding of bacteria can be reduced.

[0048] In one embodiment, the excrement discharging device comprises a stirring paddle 51 arranged in the excrement collecting tank 5, a stirring motor 52 connected with the stirring paddle 51, and an electric valve 53 connected with the outlet of the excrement collecting tank 5. The electric valve 53 is connected with a U-shaped bend 54. The stirring motor 52 is connected with the stirring paddle 51 through a sealing shaft seal.

[0049] Under the driving of the stirring motor 52, the stirring paddle 51 rotates and discharges the excrement towards the outlet of the excrement collecting tank 5. The electric valve 53 controls the opening and closing of the outlet of the excrement collecting tank 5. The U-shaped bend 54 can generate a siphon effect to accelerate the discharge speed of the excrement in the excrement collecting tank 5. Meanwhile, the water seal in the U-shaped bend 54 can isolate the air flow between the inside and outside of the isolator.

[0050] In one embodiment, the air conditioning system 6 comprises a supply air system and an exhaust air system.

[0051] The supply air system comprises a fresh air inlet 65, a supply air high efficiency filter 64, a supply air fan, a supply air pipe 62 and a supply air outlet 61 connected in sequence. A supply air airtight valve 63 for controlling the supply air switch is arranged on the supply air pipe 62.

[0052] The exhaust air system comprises an old air outlet 60, an exhaust air high efficiency filter 96, an exhaust air pipe 67 and an exhaust air outlet 66 connected in sequence. An exhaust air airtight valve 68 for controlling the exhaust air switch is arranged on the exhaust air pipe 67.

[0053] The exhaust air pipe 67 and the supply air pipe 62 are arranged at the end of the upper tank 21 and the lower tank 2 away from the transfer window 4.

[0054] The supply air outlet 61 and the exhaust air outlet 66 are arranged along the length direction of the upper tank 21 and the lower tank 2.

[0055] The working principle of the whole air conditioning system 6 is as follows: the fresh air of the air conditioning system 6 enters the fresh air inlet 65, is filtered by the supply air high efficiency filter 64, is discharged by the supply air fan, passes through the supply air pipe 62 and is finally discharged from the supply air outlet 61 into the upper tank 21 and the lower tank 2 to supply air for the breeding area. The old air in the tank enters the exhaust air pipe 67 after passing through the exhaust air outlet 66, is then sent into the exhaust air high efficiency filter 96 and is discharged from the old air outlet 60 after being filtered by the exhaust air high efficiency filter 96. The supply air fan is controlled to ensure the required supply air frequency and pressure difference in the upper tank 21 and the lower tank 2.

[0056] The supply air outlet 61 and the exhaust air outlet 66 are diagonally arranged, the supply air outlet 61 is arranged obliquely above the exhaust air outlet 66 and the supply air outlet 61 adopts a static pressure orifice plate for air supply.

[0057] The supply air outlet 61 and the exhaust air outlet 66 are diagonally arranged and adopt an up-supply and down-exhaust air supply form. The supply air outlet 61 adopts a static pressure orifice plate for air supply, which has the characteristics of uniform air supply, low noise and small blowing feeling on animals.

[0058] The air supply port 61 and the air exhaust port 66 are arranged in the upper layer box 21 and the lower layer box 2.

[0059] The air supply port 61 and the air exhaust port 66 are arranged in the upper layer box 21 and the lower layer box 2.

[0060] The air supply port 61 and the air exhaust port 66 are arranged in the upper layer box 21 and the lower layer box 2.

[0061] The air supply port 61 and the air exhaust port 66 are arranged in the upper layer box 21 and the lower layer box 2.

[0062] The working principle of the utility model is as follows:

[0063] (1) The timing of excrement (see Figure 3 , 4) : The excrement of animals falls on the bottom plate of the excrement receiving plate 91, and the excrement time arrives, the scraper motor 94 is automatically controlled to be started, the chain wheel 95 drives the chain 97 to rotate clockwise, the chain 97 drives the excrement scraping plate 92 to rotate and move, the excrement scraping plate 92 in contact with the bottom plate of the excrement receiving plate 91 moves from right to left, and the excrement scraping plate 92 abuts against the bottom plate of the excrement receiving plate 91 to operate, so that the excrement of the excrement receiving plate 91 is scraped to the left end and falls into the excrement collecting box 5 from the excrement outlet. At the same time, the water flusher 93 is automatically controlled to flush continuously, so that the chain 97, the chain wheel 95, the excrement scraping plate 92 and the excrement receiving plate 91 in operation are washed clean. The excrement scraping plate 92 continuously operates until the excrement on the excrement receiving plate 91 is removed, and the excrement period ends.

[0064] (2) The excrement is discharged (see Figure 3 , 4) : After the excrement removal program ends, all the excrement enters the excrement collecting box 5, the stirring motor 52 is controlled to start stirring the excrement, and the excrement electric valve 53 is controlled to be opened, so that the excrement in the excrement collecting box 5 is discharged to the underground pipe network through the meandering bend, the siphon vacuum generated by the meandering bend accelerates the discharge speed of the excrement, and the water seal in the bend pipe isolates the air flow between the inside and outside of the isolator. After the excrement is discharged, the stirring motor 52 is controlled to stop running, the excrement electric valve 53 is controlled to be closed, and the automatic excrement removal process ends.

[0065] (3) The principle of the air conditioning system 6 (see Figure 6) : Fresh air of air conditioning system 6 enters from fresh air port 65, is filtered through air supply high efficiency filter 64, is then discharged through air supply machine, then passes through air supply pipe 62, and finally is discharged from air supply port 61 into upper layer box body 21 and lower layer box body 2 to supply air for the breeding area. Old air in the box body enters exhaust pipe 67 after passing through exhaust port 66, is then sent into exhaust high efficiency filter 96, is filtered through exhaust high efficiency filter 96, and is then discharged from old air port 60. Controlling the air supply machine can ensure the required air supply frequency and pressure difference in upper layer box body 21 and lower layer box body 2.

[0066] The air conditioning mode of upper layer box body 21 and lower layer box body 2 is that air is supplied from above and returned from below. The setting of static pressure air supply port 61 ensures uniform air supply and low noise, and animals have no blowing feeling. Exhaust port 66 is arranged at the front side, close to the side of the plastic sleeve, so that the filter above exhaust port 66 can be replaced conveniently.

[0067] (4) Delivery window 4 (see Figure 1 ) : Gas disinfection and mechanical interlocking door are arranged, and are used for delivering animal feed, experimental equipment and the like. The plastic sleeve is arranged and is used for daily operation of personnel and the like.

[0068] (5) Observation window 3 (see Figure 5 ) : Tempered glass 32 (or acrylic plate) is used, and operation sleeve 33 and connector 31 are arranged on the tempered glass 32. During use of the isolator, operation sleeve 33 is closed with upper layer box body 21 and lower layer box body 2, the plastic sleeve is used for daily operation, and the transparent structure is used for observation of the inside. After breeding, the tempered glass 32 is opened for cleaning, disinfection, maintenance and the like.

[0069] In the utility model, through setting up the excrement receiving plate 91 and the excrement scraping device, the automatic cleaning function of the excrement can be realized, and through setting up the excrement discharging device, the excrement in the excrement collecting tank 5 can be discharged from the excrement collecting tank 5 in time. The labor intensity of workers can be reduced, and the labor cost can be reduced; and the double-layer box body structure is used, so that the breeding space can be increased in the limited space, and the space utilization rate can be improved.

[0070] The above-described embodiments are only the preferred schemes of the utility model, and do not limit the utility model in any form, and other variants and modifications can be made without exceeding the technical schemes recited in the claims.

Claims

1. A double-layered isolator for raising laboratory animals, characterized in that, include: The upper and lower boxes are interconnected; Both the upper and lower chambers are equipped with manure collection devices and air conditioning systems at their bottoms; The manure receiving device includes a manure receiving tray and a manure scraping device installed inside the manure receiving tray; one end of the manure receiving tray is provided with a manure outlet; A manure collection box is installed at one end of the lower box near the manure outlet, and a manure discharge device is installed inside the manure collection box to discharge the manure inside the manure collection box. The scraping device discharges the feces from the receiving pan through the outlet. The discharged feces fall into the collection box, and then the discharge device removes the feces from the collection box.

2. The double-layered experimental animal isolator according to claim 1, characterized in that, The manure scraping device includes: a sprocket shaft respectively set at both ends of the manure receiving tray, a sprocket set on the sprocket shaft, and a chain wound on the sprocket; a number of scraping blades are set on the chain and arranged parallel to the sprocket shaft; one end of the sprocket shaft is connected to the scraping blade motor.

3. The double-layered experimental animal isolator according to claim 2, characterized in that, A flushing device is installed at the end furthest from the manure outlet.

4. The double-layered experimental animal isolator according to claim 2 or 3, characterized in that, The manure receiving tray is tilted downwards towards the manure outlet.

5. The double-layered experimental animal isolator according to claim 1, characterized in that, The manure discharge device includes: a stirring paddle installed inside the manure collection box, a stirring motor connected to the stirring paddle, and an electric valve connected to the outlet of the manure collection box; the electric valve is connected to a U-bend.

6. The double-layered experimental animal isolator according to claim 1, characterized in that, An air conditioning system includes a supply air system and an exhaust air system; The air supply system includes a fresh air inlet, a high-efficiency air supply filter, a blower, an air supply duct, and an air outlet connected in sequence. An airtight valve for controlling the air supply switch is installed on the air supply duct. The exhaust system includes an old air outlet, an exhaust high-efficiency filter, an exhaust duct, and an exhaust outlet connected in sequence. An exhaust airtight valve is installed on the exhaust duct to control the exhaust switch.

7. The double-layered experimental animal isolator according to claim 6, characterized in that, Each of the upper and lower housings has an air outlet, and both air outlets are connected to the same air supply duct. Each of the upper and lower housings has an exhaust vent, and both exhaust vents are connected to the same exhaust duct. The lines connecting the exhaust vents and air supply vents in the upper and lower housings are inclined, with the exhaust vents positioned diagonally above the air supply vents.

8. The double-layered experimental animal isolator according to claim 6 or 7, characterized in that, The air supply outlet and the air exhaust outlet are set diagonally, with the air supply outlet located diagonally above the air exhaust outlet, and the air supply outlet uses a static pressure orifice plate for air supply.

9. The double-layered experimental animal isolator according to claim 1, 2, 3, 5, 6, or 7, characterized in that, Both the upper and lower boxes have transfer windows at one end along their length.

10. The double-layered experimental animal isolator according to claim 1, 2, 3, 5, or 6, characterized in that, A support frame is installed at the bottom of the lower compartment.

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