CN111887163B - Experimental tree shrew rearing cage - Google Patents
Experimental tree shrew rearing cage Download PDFInfo
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- CN111887163B CN111887163B CN202010957468.5A CN202010957468A CN111887163B CN 111887163 B CN111887163 B CN 111887163B CN 202010957468 A CN202010957468 A CN 202010957468A CN 111887163 B CN111887163 B CN 111887163B
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- 241000288667 Tupaia glis Species 0.000 title claims abstract description 81
- 230000000384 rearing effect Effects 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 10
- 206010002091 Anaesthesia Diseases 0.000 abstract description 8
- 230000037005 anaesthesia Effects 0.000 abstract description 8
- 241000288754 Scandentia Species 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 abstract description 6
- 230000000638 stimulation Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 241000124008 Mammalia Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241000288906 Primates Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009385 viral infection Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
- A01K1/03—Housing for domestic or laboratory animals
- A01K1/031—Cages for laboratory animals; Cages for measuring metabolism of animals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K15/00—Devices for taming animals, e.g. nose-rings or hobbles; Devices for overturning animals in general; Training or exercising equipment; Covering boxes
- A01K15/003—Nose-rings; Fastening tools therefor; Catching or driving equipment
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- General Health & Medical Sciences (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an experimental tree shrew rearing cage, and mainly relates to the technical field of tree shrew rearing. Comprises a net-shaped bottom plate, a raising cage and a grabbing cage; a plurality of rearing cages are arranged on the net-shaped bottom plate in an annular array; the net-shaped bottom plate is also provided with a grabbing port, and two openable sliding plates are arranged at the grabbing port; side walls at two sides of the rearing cage are internally provided with side sliding screen plates, and the inside of the rearing cage is internally provided with inner sliding screen plates, and both the side sliding screen plates and the inner sliding screen plates can directionally slide in the rearing cage; the grabbing cage can be detachably arranged below the grabbing opening. The invention has the beneficial effects that: multiple tree shrews can be fed in separate cages in a sufficient movable space in unit area, so that the feeding occupied area is reduced. The method has the advantages that the manual grabbing is not needed in the grabbing process, mechanical grabbing can be more conveniently and simply carried out, the stimulation to the tree shrew and the risk of stimulated death are reduced, the activity of the tree shrew in a cage is reduced, and anesthesia treatment before experiments after the grabbing of the tree shrew is also facilitated.
Description
Technical Field
The invention relates to the technical field of tree shrew rearing, in particular to an experimental tree shrew rearing cage.
Background
Tree shrew is a small mammal genetically related to primates and has wide application as an experimental animal model in the study of immunity, metabolism, tumor, virus infection and the like. The tree shrew is smart and fighting, and the breeding environment in the laboratory is single cage breeding; but also to ensure sufficient activity space for its activity to ensure its physical state. Single cage feeding with a large free space results in a large feeding footprint.
Moreover, when the tree shrew is grabbed out of the cage for experimental operation, the protective gloves are put on, the hamper is taken down, and the hands are stretched into the cage for grabbing through the hamper clamping holes. The method has the following defects: 1. when the food box is grabbed, the protective glove is needed to be put on, the food box is taken down, and the hand is stretched into the cage to be grabbed through the food box clamping holes. The aperture of the clamping hole of the hamper is limited, when the arm is thicker, the hamper is difficult to extend into the cage, and especially, the diameter of the arm is increased after the protective glove is worn, so that the movement of the arm is very limited, and the hamper is difficult to grasp; 2. after the arm stretches in, the tree shrew has a larger space for moving due to the larger space of the tree shrew raising cage, and the tree shrew moves agilely, so that the tree shrew can be captured only by being driven for multiple times by another staff at the side of the cage, thereby wasting precious experiment time and manpower; 3. the activity of the tree shrew is obviously increased in the grabbing process, so that the level of hormone or other bioactive substances in the body can be changed, and the reliability and repeatability of experimental results are further affected; 4. the tree shrew is easy to be challenged, and the capturing mode has the risk of leading to stimulated death of the experimental tree shrew under extreme conditions. In view of this, a new experimental tree shrew rearing cage needs to be designed.
The method is simple and convenient to use, the tree shrew can be quickly grabbed by a single person, the stimulation to the tree shrew is reduced as much as possible, the activity of the tree shrew in a cage is reduced, the risk of stimulated death of the tree shrew in the grabbing process is reduced, and the method meets the requirement of the tree shrew grabbing process; furthermore, the device is also suitable for grabbing other single-cage raised animals.
Disclosure of Invention
The invention aims to provide an experimental tree shrew rearing cage which can divide the space for rearing a plurality of tree shrews in a sufficient unit area, thereby reducing the rearing floor area. The mechanical grabbing can be more conveniently and simply carried out without grabbing by hands in the grabbing process, so that the stimulation to the tree shrew is reduced, the activity of the tree shrew in a cage is reduced, the risk of stimulated death of the tree shrew in the grabbing process is also reduced, and the requirements of the tree shrew grabbing process are met; furthermore, the anesthesia treatment work before the experiment after the tree shrew is grabbed is also facilitated.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
An experimental tree shrew rearing cage comprises a netlike bottom plate, a rearing cage and a grabbing cage; the reticular bottom plate is round; the center of the net-shaped bottom plate is provided with a rotating shaft, the plurality of rearing cages are annularly arranged on the net-shaped bottom plate and are connected with the rotating shaft, and the rotation of the rotating shaft drives the plurality of rearing cages to rotate; the net-shaped bottom plate is also provided with a grabbing port, two openable sliding plates are arranged at the grabbing port, and the opening and the closing of the two sliding plates control the opening and the closing of the grabbing port; a sliding cage door is arranged on one side of the rearing cage far away from the center of the reticular bottom plate; side walls at two sides of the rearing cage are internally provided with sideslip mesh plates, one side, close to the center of the reticular bottom plate, of the rearing cage is internally provided with an inner sliding mesh plate, and both the sideslip mesh plate and the inner sliding mesh plate can directionally slide in the rearing cage; the grabbing cage is detachably arranged below the grabbing port, an openable top cage plate is arranged at the top of the grabbing cage, plate ports are formed in two sides of the grabbing cage bottom plate, a sealing plate is detachably clamped on one plate port, and a threaded hole is formed in the center of the grabbing cage bottom plate; the utility model discloses a robot, including net push pedal, threaded hole, adjusting bolt, the inside netted push pedal that sets up of snatch cage, netted push pedal intermediate bottom position sets up the hemisphere receiving element, threaded connection has adjusting bolt on the threaded hole, the adjusting bolt top is equipped with spacing rotation groove, the hemisphere receiving element sets up in spacing rotation inslot.
The circumference of the reticular bottom plate is provided with a guide rail, and the section of a track groove of the guide rail is arc-shaped; the utility model discloses a breeding cage, including netted bottom plate, the bottom of the bottom plate is equipped with the wheel carrier, the one side that the net bottom plate centre of a circle is kept away from to the breeding cage, the wheel carrier bottom is equipped with universal rolling ball, universal rolling ball can remove in the track groove of circular-arc guide rail.
The rotary shaft drives to rotate through a transmission device, the transmission device comprises a servo motor and an electric servo cylinder, a piston rod of the electric servo cylinder is connected with the bottom of the servo motor, a circular groove is formed in an external spline output shaft of the servo motor, an external spline connecting piece is arranged in the circular groove, the external spline connecting piece can rotate in the circular groove, an inner spline groove is formed in the bottommost end of the rotary shaft, and the inner spline groove can be matched with the external spline output shaft and the external spline connecting piece.
The bottom of the reticular bottom plate is provided with a control device, and each sliding plate is controlled by two control devices respectively; the control device comprises a fixed barrel, a spring, a telescopic rod and a pull rope, wherein the fixed barrel is fixed at the bottom of the meshed bottom plate, the spring is arranged in the fixed barrel, the telescopic rod is in limiting sliding connection with the fixed barrel, a rope hole is formed in the bottom of the fixed barrel, one end of the pull rope penetrates through the rope hole to be bound with the telescopic rod, and the tail end of the telescopic rod is fixed with the sliding plate.
The top wall of the rearing cage is provided with a side plate chute and an inner plate chute, both sides of the top of the sideslip screen are provided with sliding parts which are in sliding connection with the side plate chute, and both sides of the top of the inner sliding screen are provided with sliding parts which are in sliding connection with the inner plate chute; when the sideslip screen plates on two sides slide to the tail end of the inner side of the side plate sliding groove and the inner sliding screen plate slides to the inner side of the inner plate sliding groove, the area of the surrounding areas of the sideslip screen plates on two sides and the inner sliding screen plate is the same as the area of the grabbing opening.
A first push rod is arranged at the center of the top of the sideslip screen, a side strip opening hole is formed in the top of the rearing cage, and the first push rod extends out of the side strip opening hole; the middle position of the top of the inner sliding screen plate is provided with a second push rod, the top of the feeding cage is provided with an inner open bar hole, and the second push rod extends out of the inner open bar hole.
The grabbing cage is made of an opaque plate.
The net-shaped bottom plate is supported by a plurality of support frame rods.
The electric servo cylinder is supported by the steel body support.
And a bearing matched with the rotating shaft is arranged at the center of the reticular bottom plate.
Compared with the prior art, the invention has the beneficial effects that:
A plurality of rearing cages can be arranged on a net-shaped bottom plate of the device, and the rearing cages can be driven to slowly rotate along the center of the net-shaped bottom plate through a transmission device, so that the moving area of tree shrew in the rearing cages is the area of the whole net-shaped bottom plate. The method realizes that a plurality of tree shrews can be fed in separate cages in a sufficient movable space in unit area, thereby reducing the feeding occupied area. The tree shrew grabbing process does not need to be grabbed by hands, so that mechanical grabbing can be more conveniently and simply carried out, the stimulation to the tree shrew is reduced, the activity of the tree shrew in a cage is reduced, the risk of stimulated death of the tree shrew in the grabbing process is also reduced, and the requirement of the tree shrew grabbing process is met; furthermore, the anesthesia treatment work before the experiment after the tree shrew is grabbed is also facilitated.
Drawings
Fig. 1 is a schematic top view of the present invention.
FIG. 2 is a schematic view of the structure of the present invention when only one feeder cage is provided.
Figure 3 is a cross-sectional view taken along the direction A-A of figure 2 of the present invention without the gripping cage.
Fig. 4 is a schematic diagram of the transmission device in the present invention.
Fig. 5 is a cross-sectional view and a partial enlarged view of the present invention taken along the direction B-B in fig. 2.
Fig. 6 is a schematic view of the structure of the grabbing cage in the invention.
Fig. 7 is a schematic view of the structure of the bottom plate of the grabbing cage in the invention.
FIG. 8 is a schematic structural view of the present invention in which the universal rolling ball is engaged with the guide rail.
The reference numbers shown in the drawings:
1. A mesh-shaped base plate; 2. a rearing cage; 3. grabbing a cage; 4. a rotating shaft; 5. a grabbing port; 6. a slide plate; 7. sliding the cage door; 8. sideslip screen plate; 9. an inner sliding screen plate; 10. a top cage plate; 11. a plate opening; 12. a closing plate; 13. a threaded hole; 14. a net-shaped push plate; 15. a hemispherical connector; 16. an adjusting bolt; 17. a limit rotating groove; 18. a guide rail; 19. a wheel carrier; 20. a universal rolling ball; 21. a transmission device; 22. a servo motor; 23. an electric servo cylinder; 24. an external spline output shaft; 25. a circular groove; 26. an external spline connection; 27. an inner spline groove; 28. a control device; 29. a fixed cylinder; 30. a spring; 31. a telescopic rod; 32. a pull rope; 33. rope holes; 34. a side plate chute; 35. an inner plate chute; 36. a slider; 37. a first push rod; 38. a side strip hole is formed; 39. a second push rod; 40. internally opening a strip hole; 41. a support frame rod; 42. a steel body bracket; 43. and (3) a bearing.
Detailed Description
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.
The invention discloses an experimental tree shrew rearing cage, which comprises a main body structure, a net-shaped bottom plate 1, a rearing cage 2 and a grabbing cage 3. The net-shaped bottom plate 1 is circular, the circumference of the net-shaped bottom plate 1 is provided with a guide rail 18, the section of a track groove of the guide rail 18 is arc-shaped, and the net-shaped bottom plate 1 is supported by a plurality of support frame rods 41. The centre of a circle position of netted bottom plate 1 sets up pivot 4, and a plurality of rearging cages 2 annular array sets up on netted bottom plate 1, and all is connected with pivot 4, and the rotation of pivot 4 drives the rotation of a plurality of rearing cages 2. The rotating shaft 4 is driven to rotate through the transmission device 21, the transmission device 21 comprises a servo motor 22 and an electric servo cylinder 23, the electric servo cylinder 23 is supported by a steel body support 42, a piston rod of the electric servo cylinder 23 is connected with the bottom of the servo motor 22, a circular groove 25 is formed in an external spline output shaft 24 of the servo motor 22, an external spline connecting piece 26 is arranged in the circular groove 25, the external spline connecting piece 26 can rotate in the circular groove 25, an internal spline groove 27 is formed in the bottommost end of the rotating shaft 4, and the internal spline groove 27 can be matched with the external spline output shaft 24 and the external spline connecting piece 26. And the center of the reticular bottom plate 1 is provided with a bearing 43 matched with the rotating shaft 4.
The net-shaped bottom plate 1 is also provided with a grabbing port 5, two sliding plates 6 are arranged at the grabbing port 5, the grabbing port 5 can be closed after the two sliding plates 6 are opened and closed, and the grabbing port 5 can be opened after the two sliding plates 6 are opened relatively. The bottom of the net-shaped bottom plate 1 is provided with a control device 28, and each sliding plate 6 is respectively controlled by two control devices 28. The control device 28 comprises a fixed barrel 29, a spring 30, a telescopic rod 31 and a pull rope 32, wherein the fixed barrel 29 is fixed at the bottom of the net-shaped bottom plate 1, the spring 30 is arranged in the fixed barrel 29, the telescopic rod 31 is in limiting sliding connection with the fixed barrel 29, a rope hole 33 is formed in the barrel bottom of the fixed barrel 29, one end of the pull rope 32 passes through the rope hole 33 to be bound with the telescopic rod 31, and the tail end of the telescopic rod 31 is fixed with the sliding plate 6. The telescopic rod 31 can be pulled by pulling the pull rope 32, and the two sliding plates 6 can be opened relatively to open the grabbing port 5 in the process of retracting the telescopic rod 31 into the fixed cylinder 29 against the elastic force of the spring 30. After the pull rope 32 is released, the telescopic rod 31 slides out of the fixed cylinder 29 under the elastic force of the spring 30, and the two sliding plates 6 are closed, so that the grabbing port 5 is closed.
The side of the rearing cage 2 far away from the circle center of the net-shaped bottom plate 1 is provided with a sliding cage door 7 and a wheel frame 19, the bottom of the wheel frame 19 is provided with a universal rolling ball 20, and the universal rolling ball 20 can move in a track groove of the arc-shaped guide rail 18. Side walls on two sides of the feeding cage 2 are internally provided with side sliding screen plates 8, one side, close to the circle center of the meshed bottom plate 1, of the feeding cage 2 is provided with an inner sliding screen plate 9, the top wall of the feeding cage 2 is provided with side plate sliding grooves 34 and inner plate sliding grooves 35, two sides of the top of the side sliding screen plates 8 are provided with sliding pieces 36 which are in sliding connection with the side plate sliding grooves 34, and two sides of the top of the inner sliding screen plate 9 are provided with sliding pieces 36 which are in sliding connection with the inner plate sliding grooves 35. When the sideslip screen plates 8 on both sides slide to the inner end of the side plate sliding groove 34 and the inner sliding screen plate 9 slides to the inner side of the inner plate sliding groove 35, the area of the area surrounded by the sideslip screen plates 8 on both sides and the inner sliding screen plate 9 is the same as the area of the grabbing port 5, and when the area is aligned with the grabbing port 5, the grabbing port 5 is opened by opening the two sliding plates 6. The tree shrew limited in the area can fall into the lower grabbing cage 3 from the grabbing port 5. In order to conveniently and manually slide the sideslip screen 8, a first push rod 37 is arranged at the center of the top of the sideslip screen 8, a side strip opening hole 38 is formed in the top of the feeding cage 2, the first push rod 37 extends out of the side strip opening hole 38, and the sideslip screen 8 can be conveniently pushed by pushing the first push rod 37 to move along the side strip opening hole 38; for convenient manual sliding of the inner sliding screen 9, a second push rod 39 is arranged at the central position of the top of the inner sliding screen 9, an inner open strip hole 40 is formed in the top of the feeding cage 2, the second push rod 39 extends out of the inner open strip hole 40, and the inner sliding screen 9 can be conveniently pushed by pushing the second push rod 39 to move along the inner open strip hole 40.
Snatch cage 3 and be the plate preparation of light-tight, snatch cage 3 and can dismantle the below that sets up at snatch mouth 5, and snatch cage 3 top and set up the top cage board 10 that can open and shut, snatch cage 3 bottom plate both sides and set up board mouth 11, and the detachable joint sets up closure plate 12 on one of them board mouth 11, snatch cage 3 bottom plate central point put and set up screw hole 13. The net-shaped pushing plate 14 capable of being vertically and slidably adjusted is arranged in the grabbing cage 3, the hemispherical connector 15 is arranged at the bottom of the middle of the net-shaped pushing plate 14, the adjusting bolt 16 is connected to the threaded hole 13 in a threaded mode, the limiting rotating groove 17 is formed in the top of the adjusting bolt 16, and the hemispherical connector 15 is arranged in the limiting rotating groove 17. Through rotating the adjusting bolt 16, the adjusting bolt 16 is in threaded transmission connection with the threaded hole 13, and the adjusting bolt 16 can drive the net-shaped push plate 14 to vertically adjust in the grabbing cage 3.
The specific using method comprises the following steps:
Firstly, a plurality of rearing cages 2 can be arranged on a net-shaped bottom plate 1 of the device, and the plurality of rearing cages 2 can be driven to slowly rotate along the circle center of the net-shaped bottom plate 1 through a transmission device 21, so that the moving area of tree shrew in the plurality of rearing cages 2 is the area of the whole net-shaped bottom plate 1. The method realizes that a plurality of tree shrews can be fed in separate cages in a sufficient movable space in unit area, thereby reducing the feeding occupied area.
The method of use of the transmission 21 is as follows: the working state of the transmission device 21 is controlled according to the time period, the central movement time of the tree shrew is the time when the servo motor 22 of the transmission device 21 drives the feeding cage 2 to rotate, the relative rest time of the tree shrew is the time when the servo motor 22 of the transmission device 21 does not drive the feeding cage 2 to rotate, and the tree shrew can also move in a certain space in the rest time. When the activity time is concentrated, the piston rod of the electric servo cylinder 23 stretches, so that the external spline output shaft 24 and the external spline connecting piece 26 are pushed into the internal spline groove 27, the external spline connecting piece 26 can rotate in the circular groove 25 at the top of the external spline output shaft 24, so that the external spline connecting piece 26 does not play a transmission role, the rotation of the external spline output shaft 24 of the servo motor 22 drives the rotation of the rotating shaft 4 through spline connection, the rotating shaft 4 drives the rotation of all the feeding cages 2, namely, the servo motor 22 can drive the feeding cages 2 to slowly rotate along the circle center of the net-shaped bottom plate 1, and the activity area of tree shrews in the feeding cages 2 is the area of the whole net-shaped bottom plate 1. The method realizes that a plurality of tree shrews can be fed in separate cages in a sufficient movable space in unit area, thereby reducing the feeding occupied area. In addition, the rolling friction between the universal rolling ball 20 and the track groove of the circular arc-shaped guide rail 18 can greatly reduce the friction force, and the bearing 43 matched with the rotating shaft 4 is arranged at the center of the circle of the meshed base plate 1, so that the rotating stability of the rotating shaft 4 is also facilitated, and the friction force is reduced. When the tree shrew moves relative to the rest time, the piston rod of the electric servo cylinder 23 contracts, so that the external spline output shaft 24 moves out of the internal spline groove 27, only the external spline connecting piece 26 still stays in the internal spline groove 27, and as the external spline connecting piece 26 can rotate in the circular groove 25 at the top of the external spline output shaft 24, the external spline connecting piece 26 does not play a transmission role, and when the tree shrew moves relative to the rest time, the tree shrew can push the feeder cage 2 to rotate along the rotating shaft 4 under certain force, so that the moving area of the feeder cage is increased, and the constraint of the moving area is reduced. The friction-reducing design of the bearing 43 and the universal rolling ball 20 is also used for better ensuring that the tree shrew can easily push the feeder cage 2 to rotate along the rotating shaft 4 when the tree shrew touches the side wall of the feeder cage 2, and increasing the moving area of the tree shrew.
The method for grabbing the tree shrew comprises the following steps:
When the tree shrew needs to be grabbed, the specified raising cage 2 is rotated to the upper side of the grabbing port 5, then the side sliding screen 8 and the inner sliding screen 9 are slowly moved to carefully drive the tree shrew, waiting for the time, when the body position of the tree shrew is aligned with the grabbing port 5, the moving speed of the side sliding screen 8 and the inner sliding screen 9 is quickened again until the side sliding screen 8 on two sides slides to the tail end of the inner side of the side plate sliding groove 34, the inner sliding screen 9 slides to the inner side of the inner plate sliding groove 35, the area of the surrounding areas of the side sliding screen 8 and the inner sliding screen 9 on two sides is the same as the area of the grabbing port 5, and at the moment, the tree shrew is limited to the area above the grabbing port 5. The method for moving the side-sliding screen plate 8 and the inner-sliding screen plate 9 comprises the following steps: the first push rod 37 at the center of the top of the sideslip screen 8 is pinched by hands, and the sliding pieces 36 at the two sides of the top of the sideslip screen 8 can slide along the side plate sliding grooves 34 by pushing the first push rod 37 to move along the side opening holes 38, so that the movement of the sideslip screen 8 is conveniently controlled manually; the second push rod 39 at the central position of the top of the inner sliding screen 9 is pinched by hand, and the sliding pieces 36 at the two sides of the top of the inner sliding screen 9 can slide along the inner sliding grooves 35 by pushing the second push rod 39 to move along the inner opening holes 40, so that the movement of the inner sliding screen 9 can be controlled conveniently and manually.
After the tree shrew is restricted to the area above the grabbing port 5, the closing plate 12 is installed on the corresponding plate port 11 according to the body position of the tree shrew, and the closing plate 12 is installed on the plate port 11 close to the head side. Then the top cage plate 10 which can be opened and closed at the top of the grabbing cage 3 is opened.
Then, the telescopic rod 31 can be pulled by pulling the pull rope 32, and the two sliding plates 6 can be opened relatively to open the grabbing port 5 in the process of retracting the telescopic rod 31 into the fixed cylinder 29 against the elastic force of the spring 30. When the grabbing port 5 is opened, the tree shrew limited in the area can fall into the grabbing cage 3 below from the grabbing port 5. After the pull rope 32 is released, the telescopic rod 31 slides out of the fixed cylinder 29 under the elastic force of the spring 30, and the two sliding plates 6 are closed, so that the grabbing port 5 is closed again.
Then the top cage plate 10 of the grabbing cage 3, which can be opened and closed at the top, is closed. The grabbing cage 3 is made of a plate which is light-tight, so that after the top cage plate 10 is closed, only the plate opening 11 without the sealing plate 12 is light-tight, and the tree shrew is relatively stable and does not tamper with the environment which is dark.
The tree shrew is required to be anesthetized after being taken to a laboratory for subsequent experiments. The anesthesia of the tree shrew is usually performed by adopting an abdominal anesthesia method. This is the purpose of providing the plate opening 11. Before anesthesia, the adjusting bolt 16 is rotated, the adjusting bolt 16 is in threaded transmission connection with the threaded hole 13, and the adjusting bolt 16 can drive the reticular pushing plate 14 to vertically adjust in the grabbing cage 3, so that the reticular pushing plate 14 is slowly pushed upwards towards the top cage plate 10, and the situation that the tree shrew is stressed and stimulated due to rapid pushing upwards is avoided, and the tree shrew is limited to a smaller space. Then the needle of the injector passes through the plate opening 11 and the net opening of the net push plate 14, and anesthetic is injected into the abdomen of the tree shrew for anesthesia. After a period of time, the tree shrew is completely anesthetized, the top cage plate 10 is opened again, the tree shrew is taken out of the grabbing cage 3, and the subsequent experimental operation is carried out.
To sum up:
By using the device, a plurality of tree shrews can be fed in a cage-separated mode in a sufficient movable space in unit area, so that the feeding occupied area is reduced. The tree shrew grabbing process does not need to be grabbed by hands, so that mechanical grabbing can be more conveniently and simply carried out, the stimulation to the tree shrew is reduced, the activity of the tree shrew in a cage is reduced, the risk of stimulated death of the tree shrew in the grabbing process is also reduced, and the requirement of the tree shrew grabbing process is met; furthermore, the anesthesia treatment work before the experiment after the tree shrew is grabbed is also facilitated.
Claims (8)
1. An experimental tree shrew rearing cage which is characterized in that: comprises a net-shaped bottom plate (1), a raising cage (2) and a grabbing cage (3); the reticular bottom plate (1) is round; the center of the net-shaped bottom plate (1) is provided with a rotating shaft (4), a plurality of feeding cages (2) are annularly arranged on the net-shaped bottom plate (1) in an array manner and are connected with the rotating shaft (4), and the rotation of the rotating shaft (4) drives the feeding cages (2) to rotate; the net-shaped bottom plate (1) is also provided with a grabbing port (5), two openable sliding plates (6) are arranged at the grabbing port (5), and the opening and closing of the two sliding plates (6) control the opening and closing of the grabbing port (5);
A sliding cage door (7) is arranged on one side of the rearing cage (2) far away from the center of the reticular bottom plate (1); side walls at two sides of the feeding cage (2) are internally provided with sideslip net plates (8), one side, close to the circle center of the net bottom plate (1), of the feeding cage (2) is provided with an inner sliding net plate (9), and both the sideslip net plates (8) and the inner sliding net plate (9) can directionally slide in the feeding cage (2);
The grabbing cage (3) is detachably arranged below the grabbing opening (5), an openable top cage plate (10) is arranged at the top of the grabbing cage (3), plate openings (11) are formed in two sides of a bottom plate of the grabbing cage (3), a sealing plate (12) is detachably clamped on one plate opening (11), and a threaded hole (13) is formed in the center of the bottom plate of the grabbing cage (3); the grabbing cage (3) is internally provided with a reticular pushing plate (14) capable of being vertically and slidably adjusted, a hemispherical connector (15) is arranged at the middle bottom position of the reticular pushing plate (14), an adjusting bolt (16) is connected to the threaded hole (13) in a threaded mode, a limiting rotating groove (17) is formed in the top of the adjusting bolt (16), and the hemispherical connector (15) is arranged in the limiting rotating groove (17);
The bottom of the reticular bottom plate (1) is provided with a control device (28), and each sliding plate (6) is controlled by two control devices (28) respectively;
The control device (28) comprises a fixed cylinder (29), a spring (30), a telescopic rod (31) and a pull rope (32), wherein the fixed cylinder (29) is fixed at the bottom of the net-shaped bottom plate (1), the spring (30) is arranged in the fixed cylinder (29), the telescopic rod (31) is in limit sliding connection with the fixed cylinder (29), a rope hole (33) is formed in the bottom of the fixed cylinder (29), one end of the pull rope (32) passes through the rope hole (33) to be bound with the telescopic rod (31), and the tail end of the telescopic rod (31) is fixed with the sliding plate (6);
a side plate sliding groove (34) and an inner plate sliding groove (35) are formed in the top wall of the feeding cage (2), sliding pieces (36) which are in sliding connection with the side plate sliding groove (34) are arranged on two sides of the top of the sideslip screen (8), and sliding pieces (36) which are in sliding connection with the inner plate sliding groove (35) are arranged on two sides of the top of the inner sliding screen (9);
when the sideslip screen plates (8) on two sides slide to the tail end of the inner side of the side plate sliding groove (34) and the inner sliding screen plate (9) slides to the inner side of the inner plate sliding groove (35), the area surrounded by the sideslip screen plates (8) on two sides and the inner sliding screen plate (9) is the same as the area of the grabbing opening (5).
2. The experimental tree shrew rearing cage according to claim 1, wherein: the circumference of the reticular bottom plate (1) is provided with a guide rail (18), and the section of a track groove of the guide rail (18) is arc-shaped; one side of the rearing cage (2) far away from the circle center of the reticular bottom plate (1) is provided with a wheel frame (19), the bottom of the wheel frame (19) is provided with a universal rolling ball (20), and the universal rolling ball (20) can move in an arc-shaped track groove of the guide rail (18).
3. The experimental tree shrew rearing cage according to claim 1, wherein: the rotary shaft (4) drives to rotate through a transmission device (21), the transmission device (21) comprises a servo motor (22) and an electric servo cylinder (23), a piston rod of the electric servo cylinder (23) is connected with the bottom of the servo motor (22), a circular groove (25) is formed in an external spline output shaft (24) of the servo motor (22), an external spline connecting piece (26) is arranged in the circular groove (25), the external spline connecting piece (26) can rotate in the circular groove (25), an internal spline groove (27) is formed in the bottommost end of the rotary shaft (4), and the internal spline groove (27) can be matched with the external spline output shaft (24) and the external spline connecting piece (26).
4. The experimental tree shrew rearing cage according to claim 1, wherein: a first push rod (37) is arranged at the center of the top of the sideslip screen (8), a side strip opening hole (38) is formed in the top of the feeding cage (2), and the first push rod (37) extends out of the side strip opening hole (38); the middle position of the top of the inner sliding screen plate (9) is provided with a second push rod (39), the top of the feeding cage (2) is provided with an inner open bar hole (40), and the second push rod (39) extends out of the inner open bar hole (40).
5. The experimental tree shrew rearing cage according to claim 1, wherein: the grabbing cage (3) is made of a plate which is light-tight.
6. The experimental tree shrew rearing cage according to claim 1, wherein: the net-shaped bottom plate (1) is supported by a plurality of support frame rods (41).
7. An experimental tree shrew rearing cage according to claim 3, wherein: the electric servo cylinder (23) is supported by a steel body bracket (42).
8. The experimental tree shrew rearing cage according to claim 1, wherein: the center of the reticular bottom plate (1) is provided with a bearing (43) matched with the rotating shaft (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010957468.5A CN111887163B (en) | 2020-09-13 | 2020-09-13 | Experimental tree shrew rearing cage |
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| CN202010957468.5A CN111887163B (en) | 2020-09-13 | 2020-09-13 | Experimental tree shrew rearing cage |
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| CN111887163B true CN111887163B (en) | 2024-05-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208875066U (en) * | 2018-05-31 | 2019-05-21 | 兰州大学第一医院 | A kind of medical experiment mouse rearging cage |
| CN209047195U (en) * | 2018-10-26 | 2019-07-02 | 昆明医科大学 | A kind of breeding apparatus being practically applicable to tree shrew daily exercise and breeding |
| JP2020005548A (en) * | 2018-07-05 | 2020-01-16 | 学校法人順天堂 | Animal breeding cage |
| CN212260105U (en) * | 2020-09-13 | 2021-01-01 | 广西医科大学第一附属医院 | Experimental tree shrew rearing cage |
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2020
- 2020-09-13 CN CN202010957468.5A patent/CN111887163B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208875066U (en) * | 2018-05-31 | 2019-05-21 | 兰州大学第一医院 | A kind of medical experiment mouse rearging cage |
| JP2020005548A (en) * | 2018-07-05 | 2020-01-16 | 学校法人順天堂 | Animal breeding cage |
| CN209047195U (en) * | 2018-10-26 | 2019-07-02 | 昆明医科大学 | A kind of breeding apparatus being practically applicable to tree shrew daily exercise and breeding |
| CN212260105U (en) * | 2020-09-13 | 2021-01-01 | 广西医科大学第一附属医院 | Experimental tree shrew rearing cage |
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