CN211607842U

CN211607842U - Animal holding device

Info

Publication number: CN211607842U
Application number: CN201921520645.2U
Authority: CN
Inventors: 马宝苗; 乐凯; 李长雷; 龚晓康; 皮明山
Original assignee: Jianghan University
Current assignee: Jianghan University
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-10-02
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses an animal clamping device belongs to animal experiment field. The animal clamping device comprises an experiment cage, a connecting rod, a food hanging piece, a first clamping mechanism, a second clamping mechanism and a rotating mechanism for driving the experiment cage to rotate; an opening is formed in the top surface of the experimental cage, one end of the food hanging piece is fixedly arranged on the top surface of the experimental cage, and the other end of the food hanging piece is located above the opening; the first clamping mechanism comprises a first fork and a first fork adjusting assembly, the first fork comprises a plurality of first fork rods, two first fork rods positioned at two ends of the first fork are respectively fixed on the first side surface and the second side surface through the first fork adjusting assembly, and the plurality of first fork rods positioned in the middle of the first fork penetrate through a guide groove on the third side surface and are arranged in the experiment cage; the second clamping mechanism is identical to the first clamping mechanism in structure, and the plurality of first fork rods and the plurality of second fork rods are arranged in the experiment cage in a crossed mode.

Description

Animal holding device

Technical Field

The utility model relates to an animal experiment field, in particular to animal clamping device.

Background

Animal experiments refer to scientific research conducted in laboratories using animals in order to gain new knowledge about biology, medicine, etc., or to solve specific problems. Animal experiments must be performed by or under the direction of trained, academic or professional skilled personnel.

When performing an experiment on a living animal, it is generally necessary to capture the animal first and then perform the experiment on the captured animal. The existing catching method generally adopts a catching tool to clamp and fix the animal, so that the animal feels pain. And especially for animals running faster such as rabbits, it is more inconvenient to catch. Meanwhile, when the rabbit is captured and then tested, the rabbit may run away, and the test is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an animal clamping device can trap the animal to after trapping the animal, carry out the dizzy to the animal, reduce the animal and struggle, can not let the animal feel painful, can prevent that the animal from escaping simultaneously. The technical scheme is as follows:

the utility model provides an animal clamping device, which comprises an experiment cage, a food hanging piece, a first clamping mechanism, a second clamping mechanism and a rotating mechanism for driving the experiment cage to rotate;

the experimental cage comprises a top surface and a bottom surface which are oppositely arranged, a first side surface and a second side surface which are oppositely arranged, and a third side surface and a fourth side surface which are oppositely arranged, wherein the top surface of the experimental cage is provided with an opening, one end of the food hanging piece is fixedly arranged on the top surface of the experimental cage, and the other end of the food hanging piece is positioned right above the opening; a plurality of guide grooves extending along the direction from the top surface to the bottom surface of the experimental cage are formed in the third side surface and the fourth side surface;

the first clamping mechanism comprises a first fork and a first fork adjusting assembly used for controlling the first fork to move along the direction parallel to the top surface of the experimental cage, the first fork comprises a plurality of first fork rods arranged in parallel at intervals, two first fork rods positioned at two ends of the first fork are respectively fixed on the first side surface and the second side surface through the first fork adjusting assembly, and the plurality of first fork rods positioned in the middle of the first fork are arranged in the experimental cage through first guide grooves in the third side surface;

the second clamping mechanism comprises a second fork and a second fork adjusting component for controlling the second fork to move along a direction parallel to the top surface of the experimental cage, the second fork comprises a plurality of second fork rods arranged in parallel at intervals, two second fork rods positioned at two ends of the second fork are respectively fixed on the first side surface and the second side surface through the second fork adjusting component, the plurality of second fork rods positioned in the middle of the second fork are arranged in the experimental cage through second guide grooves on the fourth side surface, and the plurality of first fork rods and the plurality of second fork rods are arranged in a crossed mode in the experimental cage;

the rotating mechanism comprises a connecting piece and a driving piece used for driving the connecting piece to rotate, and two ends of the connecting piece are fixedly connected with the first side face and the second side face respectively.

Further, the food pendant includes connecting rod and link, the one end of connecting rod is fixed on the top surface of experiment cage, the other end of connecting rod is equipped with the link, be equipped with the trough that is used for placing food on the link.

Further, the first fork adjusting assembly comprises a guide frame, a connecting block, a fastening screw, a sliding block, a spring and a fastening nut;

the both ends of leading truck are fixed to be set up first side or on the second side, the middle part cover of leading truck is equipped with the connecting block, fastening screw passes the connecting block with the leading truck offsets, the slider with connecting block fixed connection, be equipped with on the slider and be used for the confession the fork hole that first fork arm passed, first fork arm passes the fork hole with fastening nut threaded connection, the spring housing is established outside the first fork arm, just the one end of spring with slider fixed connection, the other end of spring with fastening nut fixed connection.

Further, the structure of the second fork adjusting assembly is equal to the structure of the first fork adjusting assembly.

Further, slewing mechanism the connecting piece includes pivot, deflector, two at least inserted bars, two at least guide rings and two at least lock nut, the one end of pivot with the driving piece transmission is connected, the other end of pivot with deflector fixed connection, the both ends of deflector are equipped with two at least the inserted bar, two at least the guide ring is fixed the setting respectively first side with on the second side, every all be equipped with on the guide ring and be used for the confession the through-hole that the inserted bar passed, the inserted bar pass the through-hole with lock nut threaded connection.

Furthermore, the animal holding device also comprises a supporting mechanism, wherein the supporting mechanism comprises a connecting ring, a bearing, two connecting frames and a driving piece supporting frame;

the connecting ring is sleeved outside the rotating shaft, and the bearing is arranged between the connecting ring and the rotating shaft; the connecting frames comprise connecting rods and supporting rods which are perpendicular to each other, one ends of the connecting rods are fixedly connected with the connecting rings, the other ends of the connecting rods are fixedly connected with the supporting rods, the length of each supporting rod is larger than the height of the experimental cage, and the two connecting frames are arranged at an interval of 180 degrees along the circumferential direction of the connecting rings; the driving piece support frame is arranged on the two connecting frames, the driving piece is fixedly arranged on the driving piece support frame, and the driving piece support frame and the supporting rod are respectively positioned on two sides of the connecting rod.

Furthermore, the animal clamping device also comprises two height adjusting mechanisms, the two height adjusting mechanisms are respectively arranged on the supporting rods of the two connecting frames, and each height adjusting mechanism comprises a guide frame, a spiral spring, a first screw cap, a sliding pipe, a bottom plate and a roller;

the guide frame includes along the first side and the second side of the parallel interval setting of length direction of guide frame, the guide frame first side is fixed to be set up on the bracing piece, first nut coil spring with the slide pipe is followed the length direction cover in proper order of bracing piece is established the guide frame on the second side, just first nut with the second side threaded connection of guide frame, coil spring presss from both sides and establishes first nut with between the slide pipe, the slide pipe with bottom plate fixed connection, the bottom plate is along the perpendicular to the direction setting of guide frame, the bottom of bottom plate is equipped with the gyro wheel.

Further, the first fork and the second fork are both plastic forks.

Further, a plurality of the food hangers are arranged on the top surface of the animal holding device, and the plurality of food hangers are arranged around the opening.

Furthermore, a handle is arranged on the experiment cage.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is:

through set up the food pendant at the top of experiment cage, when specifically using, can hang food on the food pendant to lure the animal to the experiment cage in, and impel the animal to stand and eat the food on the food pendant. Meanwhile, the first fork adjusting assembly and the second fork adjusting assembly are adjusted to enable the first fork and the second fork to move along the direction parallel to the top surface of the experiment cage, and therefore the distance between the plurality of first fork rods and the plurality of second fork rods in the experiment cage can be controlled to be increased, and animals can conveniently enter the experiment cage. After the animal enters the experimental cage, the distance between the plurality of first fork bars and the plurality of second fork bars can be further controlled to be reduced so as to clamp the animal. If the animal is instinctive at this time, the animal walks onto the plurality of first fork arms and the plurality of second fork arms, and the plurality of first fork arms and the plurality of second fork arms are arranged in a crossed manner, the plurality of first fork arms and the plurality of second fork arms can serve as bottom plates of the experimental cage to support the animal. At this moment, can control slewing mechanism for the driving piece drives the connecting piece and rotates, and then drives the experiment cage and rotates, so that the animal vertigo is in the experiment cage. Just reduced struggling of animal when the animal is dizzy to can be convenient for move experiment cage and animal whole to the experimental position, experiment to the animal. Therefore, adopt the utility model provides an animal clamping device can trap the animal to after trapping the animal, carry out the vertigo to the animal, reduce the animal and struggle, can not let the animal feel painful, can prevent simultaneously that the animal from escaping, the experiment of being convenient for.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an animal holding device provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an experimental cage according to an embodiment of the present invention;

fig. 3 is an installation diagram of a first fork according to an embodiment of the present invention;

fig. 4 is an installation diagram of a second fork according to an embodiment of the present invention;

FIG. 5 is a view from the direction A of FIG. 3;

fig. 6 is a side view of a rotating mechanism according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an animal holding device provided by an embodiment of the present invention, and as shown in fig. 1, the animal holding device 100 includes an experiment cage 10, a food hanging member 20, a first clamping mechanism 30, a second clamping mechanism 40, and a rotating mechanism 50 for driving the experiment cage 10 to rotate.

Fig. 2 is a schematic structural diagram of an experimental cage according to an embodiment of the present invention, and as shown in fig. 2, the experimental cage 10 includes a top surface 11 and a bottom surface 12 which are oppositely disposed, a first side surface 13 and a second side surface 14 which are oppositely disposed, and a third side surface 15 and a fourth side surface 16 which are oppositely disposed. The top surface 11 of the experimental cage 10 is provided with an opening 11a, one end of the food hanging member 20 is fixedly arranged on the top surface of the experimental cage 10, and the other end of the food hanging member 20 is positioned right above the opening 11 a.

The third side surface 15 is provided with a plurality of first guide grooves 15a extending in a direction from the top surface 11 to the bottom surface 12 of the experimental cage 10 (i.e., in the x direction in fig. 2). The fourth side surface 16 is provided with a plurality of second guide grooves 16a extending in a direction from the top surface 11 to the bottom surface 12 of the experimental cage 10 (i.e., in the x direction in fig. 2).

Referring to FIG. 1, the first clamping mechanism 30 comprises a first fork 31 and a first fork adjustment assembly 32 for controlling the movement of the first fork 31 in a direction parallel to the top surface 11 of the experimental cage 10 (i.e., the y-direction in FIG. 1).

Fig. 3 is a schematic view of an installation of a first fork according to an embodiment of the present invention, as shown in fig. 3, the first fork 31 includes a plurality of first fork arms 311 arranged in parallel at intervals, and two first fork arms 311 at two ends of the first fork 31 are respectively fixed on the first side 13 and the second side 14 through the first fork adjusting assembly 32. A plurality of first fork arms 311 located at the middle of the first fork 31 are disposed inside the experimental cage 10 through the first guide grooves 15a on the third side surface 15.

Referring to fig. 1, second clamping mechanism 40 includes a second fork 41 and a second fork adjustment assembly 42 for controlling movement of second fork 41 in a direction parallel to top surface 11 of test cage 10 (i.e., the y-direction in fig. 1).

Fig. 4 is a schematic view of an installation of a second fork according to an embodiment of the present invention, as shown in fig. 4, the second fork 41 includes a plurality of second fork rods 411 arranged in parallel at intervals, and two second fork rods 411 at two ends of the second fork 41 are respectively fixed on the first side 13 and the second side 14 through the second fork adjusting assembly 42. The plurality of second fork bars 411 located in the middle of the second fork 41 are disposed inside the test cage 10 through the second guide grooves 16a on the fourth side surface 16, and the plurality of first fork bars 311 and the plurality of second fork bars 411 are disposed to intersect inside the test cage 10 (not shown in the figure).

The rotating mechanism 50 includes a connecting member 51 and a driving member 52 for driving the connecting member 51 to rotate, and both ends of the connecting member 51 are fixedly connected to the first side surface 13 and the second side surface 14, respectively.

The embodiment of the utility model provides a top through at the experiment cage sets up the food pendant, when specifically using, can hang food on the food pendant to lure the animal to the experiment cage in, and make the animal stand and eat the food on the food pendant. Meanwhile, the first fork adjusting assembly and the second fork adjusting assembly are adjusted to enable the first fork and the second fork to move along the direction parallel to the top surface of the experiment cage, and therefore the distance between the plurality of first fork rods and the plurality of second fork rods in the experiment cage can be controlled to be increased, and animals can conveniently enter the experiment cage. After the animal enters the experimental cage, the distance between the plurality of first fork bars and the plurality of second fork bars can be further controlled to be reduced so as to clamp the animal. If the animal is instinctive at this time, the animal walks onto the plurality of first fork arms and the plurality of second fork arms, and the plurality of first fork arms and the plurality of second fork arms are arranged in a crossed manner, the plurality of first fork arms and the plurality of second fork arms can serve as bottom plates of the experimental cage to support the animal. At this moment, can control slewing mechanism for the driving piece drives the connecting piece and rotates, and then drives the experiment cage and rotates, so that the animal vertigo is in the experiment cage. Just reduced struggling of animal when the animal is dizzy to can be convenient for move experiment cage and animal whole to the experimental position, experiment to the animal. Therefore, adopt the utility model provides an animal clamping device can trap the animal to after trapping the animal, carry out the vertigo to the animal, reduce the animal and struggle, can not let the animal feel painful, can prevent simultaneously that the animal from escaping, the experiment of being convenient for.

Optionally, the experimental cage 10 is of a grid structure to facilitate viewing of the interior of the experimental cage 10.

In this embodiment, a detachable cover plate (not shown) is further provided at the opening 11 a. When the animal is stunned, the cover plate can be installed at the opening 11a, and the experimental cage 10 is moved to prevent the animal from escaping.

Further, referring to fig. 1, the food hanger 20 includes a connecting rod 21 and a hanging ring 22. One end of the connecting rod 21 is fixed on the top surface 11 of the experimental cage 10, the other end of the connecting rod 21 is provided with a hanging ring 22, and the hanging ring 22 is provided with a food groove for placing food.

Optionally, the top surface 11 of the experimental cage 10 is provided with a plurality of food hangers 20, the plurality of food hangers 20 being arranged around the opening 11 a. By providing a plurality of food hangers 20, a variety of food items may be placed above the cage 10 to facilitate trapping of animals.

In this embodiment, the top surface 11 of the experimental cage 10 is provided with two food hangers 20.

Fig. 5 is a view of fig. 3 taken along direction a, and as shown in fig. 5, in conjunction with fig. 3, the first fork adjusting assembly 32 includes a guide frame 321, a connecting block 322, a fastening screw 323, a slider 324, a spring 325, and a fastening nut 326.

The guide frame 321 is fixedly disposed at both ends on the first side 13 or the second side 14. The middle part of leading truck 321 is equipped with connecting block 322, and fastening screw 323 passes connecting block 322 and offsets with leading truck 321, and slider 324 and connecting block 322 fixed connection are equipped with the fork hole 324a that is used for supplying first fork arm 311 to pass on the slider 324, and first fork arm 311 passes fork hole 324a and fastening nut 326 threaded connection. The spring 325 is sleeved outside the first fork rod 311, one end of the spring 325 is fixedly connected with the slider 324, and the other end of the spring 325 is fixedly connected with the fastening nut 326.

In particular use, the first fork 311 is moved in the fork hole 324a by adjusting the fastening nut 326, so that the first fork 311 is moved in a direction parallel to the top surface 11 of the experimental cage 10 (i.e. the y direction in fig. 1). Meanwhile, by arranging the spring 325, the first fork rod 311 can be pushed to clamp and fix the animal under the elastic force of the spring 325.

Further, the structure of the second fork adjusting component 42 is equal to the structure of the first fork adjusting component 32, and the description of the present invention is omitted here.

The distance between the first fork arm 311 and the second fork arm 411 can be changed by adjusting the fastening nuts in the first fork adjustment assembly 32 and the second fork adjustment assembly 42 to clamp the animal.

Fig. 6 is a side view of a rotating mechanism according to an embodiment of the present invention, as shown in fig. 6 and in conjunction with fig. 1, a connecting member 51 of the rotating mechanism 50 includes a rotating shaft 511, a guiding plate 512, at least two inserting rods 513, at least two guiding rings 514, and at least two locking nuts 515.

One end of the rotating shaft 511 is in transmission connection with the driving member 52, the other end of the rotating shaft 511 is fixedly connected with the guide plate 512, at least two insertion rods 513 are arranged at two ends of the guide plate 512, and at least two guide rings 514 are respectively and fixedly arranged on the first side surface 13 and the second side surface 14. Each guide ring 514 is provided with a through hole 514a for the insertion rod 513 to pass through, and the insertion rod 513 passes through the through hole 514a to be in threaded connection with the locking nut 515.

Alternatively, the driving member 52 may be a motor, and the rotating shaft 511 is in transmission connection with an output shaft of the motor.

When the experiment cage 10 is used specifically, the motor is controlled to rotate, so that the rotating shaft 511 can be driven to rotate, the rotating shaft 511 can drive the guide plate 512 and the at least two inserting rods 513 to rotate, and the inserting rods 513 are fixed with the guide ring 514 through the locking nuts 515, so that the guide ring 514 and the experiment cage 10 can be driven to rotate by the rotation of the inserting rods 513. While the animals in the experimental cage 10 are looking to follow the food pendant 20 to stun the animals in the experimental cage 10.

Further, referring to fig. 1, the animal holding device further comprises a support mechanism 60, and the support mechanism 60 comprises a connection ring 61, a bearing (not shown), two connection frames 62 and a driving member support frame 63. By providing a support mechanism, the test cage 10 and the driving member 52 can be supported.

The connecting ring 61 is sleeved outside the rotating shaft 511, and the bearing is arranged between the connecting ring 61 and the rotating shaft 511. The connecting frame 62 includes a connecting rod 621 and a supporting rod 622 that are disposed perpendicular to each other. One end of the connecting rod 621 is fixedly connected with the connecting ring 61, the other end of the connecting rod 621 is fixedly connected with the supporting rod 622, the length (L) of the supporting rod 622 is greater than the height (H) of the experimental cage 10, and the two connecting frames 62 are arranged at an interval of 180 degrees along the circumferential direction of the connecting ring 61. The driving member support frame 63 is disposed on the two connecting frames 62, the driving member 52 is fixedly disposed on the driving member support frame 63, and the driving member support frame 63 and the support rod 622 are respectively disposed on two sides of the connecting rod 621.

In particular use, the shaft 511 rotates and the support mechanism 60 does not rotate.

Further, referring to fig. 1, the animal holding device 100 further includes two height adjusting mechanisms 70, the two height adjusting mechanisms 70 are respectively disposed on the supporting rods 622 of the two connecting frames 62, and the height adjusting mechanisms 70 include a guide frame 71, a coil spring 72, a first nut 73, a slide tube 74, a bottom plate 75, and a roller 76. Movement of the entire animal holding device is facilitated by the provision of rollers 76. The coil spring 72 is provided to reduce vibration generated when the rotating mechanism 50 rotates.

The guide frame 71 comprises a first side edge and a second side edge which are arranged in parallel at intervals along the length direction of the guide frame 71, the first side edge of the guide frame 71 is fixedly arranged on the support rod 622, the first nut 73, the spiral spring 72 and the sliding pipe 74 are sequentially sleeved on the second side edge of the guide frame 71 along the length direction of the guide frame 71, the first nut 73 is in threaded connection with the second side edge of the guide frame 71, and the spiral spring 72 is clamped between the first nut 73 and the sliding pipe 74. The slide pipe 74 is fixedly connected to a bottom plate 75, the bottom plate 75 is disposed in a direction perpendicular to the guide frame 71, and a roller 76 is disposed at the bottom of the bottom plate 75.

In particular use, the position of the slide tube 74 on the second side can be changed by adjusting the position of the first nut 73 on the second side, so that the height of the base plate 75 relative to the support rod 622 can be changed, and when the roller 76 is placed on a plane, the height of the support rod 622 relative to the plane can be changed, so that the overall height of the animal holding device 100 can be changed.

Further, the first fork 311 and the second fork 411 are both plastic forks to prevent injury to the animal when the animal is clamped.

Further, the experiment cage 10 is provided with a handle 80 to facilitate movement of the experiment cage.

In this embodiment, the experimental cage 10 is provided with two handles 80, and two ends of each handle 80 are respectively fixed on the first side surface 13 and the second side surface 14.

It should be noted that when an animal is caught or dazzled in the experimental cage 10, the locking nut 515 of the rotating mechanism 50 can be removed, so that the rotating mechanism 50 and the supporting mechanism 60 are separated from the experimental cage 10, and then the handle 80 is held to move the experimental cage 10 and the animal to the experimental site. When the animal arrives at the experimental position, the rotating mechanism 50 and the supporting mechanism 60 are installed together with the experimental cage 10 again, so that the animal is further dizzy, and the animal is prevented from struggling and escaping.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An animal holding device, characterized in that the animal holding device (100) comprises an experiment cage (10), a food hanging member (20), a first clamping mechanism (30), a second clamping mechanism (40) and a rotating mechanism (50) for driving the experiment cage (10) to rotate;

the experimental cage (10) comprises a top surface (11) and a bottom surface (12) which are oppositely arranged, a first side surface (13) and a second side surface (14) which are oppositely arranged, and a third side surface (15) and a fourth side surface (16) which are oppositely arranged, the top surface (11) of the experimental cage (10) is provided with an opening (11a), one end of the food hanging piece (20) is fixedly arranged on the top surface (11) of the experimental cage (10), and the other end of the food hanging piece (20) is positioned right above the opening (11 a); the third side surface (15) and the fourth side surface (16) are respectively provided with a plurality of guide grooves extending along the direction from the top surface (11) to the bottom surface (12) of the experimental cage (10);

the first clamping mechanism (30) comprises a first fork (31) and a first fork adjusting assembly (32) for controlling the first fork (31) to move along a direction parallel to the top surface (11) of the experimental cage (10), the first fork (31) comprises a plurality of first fork rods (311) arranged in parallel at intervals, two first fork rods (311) positioned at two ends of the first fork (31) are respectively fixed on the first side surface (13) and the second side surface (14) through the first fork adjusting assembly (32), and the plurality of first fork rods (311) positioned in the middle of the first fork (31) are arranged in the experimental cage (10) through first guide grooves (15a) on the third side surface (15);

the second clamping mechanism (40) comprises a second fork (41) and a second fork adjusting component (42) used for controlling the second fork (41) to move along the direction parallel to the top surface (11) of the experiment cage (10), the second fork (41) comprises a plurality of second fork rods (411) which are arranged in parallel at intervals, two second fork rods (411) positioned at two ends of the second fork (41) are respectively fixed on the first side surface (13) and the second side surface (14) through the second fork adjusting component (42), the plurality of second fork rods (411) positioned in the middle of the second fork (41) are arranged in the experiment cage (10) through second guide grooves (16a) on the fourth side surface (16), and a plurality of the first fork rods (311) and a plurality of the second fork rods (411) are arranged in a crossed manner in the experiment cage (10);

the rotating mechanism (50) comprises a connecting piece (51) and a driving piece (52) used for driving the connecting piece (51) to rotate, and two ends of the connecting piece (51) are fixedly connected with the first side surface (13) and the second side surface (14) respectively.

2. The animal holding device according to claim 1, characterized in that the food hanging member (20) comprises a connecting rod (21) and a hanging ring (22), one end of the connecting rod (21) is fixed on the top surface (11) of the experimental cage (10), the other end of the connecting rod (21) is provided with the hanging ring (22), and the hanging ring (22) is provided with a food groove for placing food.

3. Animal holding device according to claim 1, characterized in that the first fork adjustment assembly (32) comprises a guiding frame (321), a connecting block (322), a fastening screw (323), a slider (324), a spring (325) and a fastening nut (326);

the fixed setting in both ends of leading truck (321) first side (13) or on second side (14), the middle part cover of leading truck (321) is equipped with connecting block (322), fastening screw (323) pass connecting block (322) with leading truck (321) offset, slider (324) with connecting block (322) fixed connection, be equipped with on slider (324) and be used for supplying fork hole (324a) that first fork arm (311) passed, first fork arm (311) are passed fork hole (324a) with fastening nut (326) threaded connection, spring (325) cover is established outside first fork arm (311), just the one end of spring (325) with slider (324) fixed connection, the other end of spring (325) with fastening nut (326) fixed connection.

4. An animal holding device according to claim 3, wherein the second fork adjustment assembly (42) is of equal construction to the first fork adjustment assembly (32).

5. Animal holding device according to claim 1, characterized in that the connection piece (51) of the turning mechanism (50) comprises a turning shaft (511), a guiding plate (512), at least two insert rods (513), at least two guiding rings (514) and at least two locking nuts (515), one end of the rotating shaft (511) is in transmission connection with the driving part (52), the other end of the rotating shaft (511) is fixedly connected with the guide plate (512), at least two insertion rods (513) are arranged at two ends of the guide plate (512), at least two guide rings (514) are respectively and fixedly arranged on the first side surface (13) and the second side surface (14), each guide ring (514) is provided with a through hole (514a) for the insertion rod (513) to pass through, the insert rod (513) penetrates through the through hole (514a) to be in threaded connection with the locking nut (515).

6. An animal holding device according to claim 5, further comprising a support mechanism (60), the support mechanism (60) comprising a connection ring (61), a bearing, two connection brackets (62) and a drive member support bracket (63);

the connecting ring (61) is sleeved outside the rotating shaft (511), and the bearing is arranged between the connecting ring (61) and the rotating shaft (511); the connecting frames (62) comprise connecting rods (621) and supporting rods (622) which are perpendicular to each other, one ends of the connecting rods (621) are fixedly connected with the connecting ring (61), the other ends of the connecting rods (621) are fixedly connected with the supporting rods (622), the length (L) of the supporting rods (622) is larger than the height (H) of the experimental cage (10), and the two connecting frames (62) are arranged at an interval of 180 degrees along the circumferential direction of the connecting ring (61); the driving piece supporting frame (63) is arranged on the two connecting frames (62), the driving piece (52) is fixedly arranged on the driving piece supporting frame (63), and the driving piece supporting frame (63) and the supporting rod (622) are respectively positioned on two sides of the connecting rod (621).

7. The animal holding device according to claim 6, characterized in that it further comprises two height adjusting mechanisms (70), two height adjusting mechanisms (70) being respectively provided on the support bars (622) of the two connecting frames (62), the height adjusting mechanisms (70) comprising a guide frame (71), a coil spring (72), a first nut (73), a slide tube (74), a bottom plate (75) and a roller (76);

the guide frame (71) comprises a first side edge and a second side edge which are arranged in parallel at intervals along the length direction of the guide frame (71), the first side edge of the guide frame (71) is fixedly arranged on the supporting rod (622), the first screw cap (73), the spiral spring (72) and the sliding pipe (74) are sequentially sleeved on the second side edge of the guide frame (71) along the length direction of the supporting rod (622), and the first nut (73) is in threaded connection with the second side edge of the guide frame (71), the coil spring (72) is sandwiched between the first nut (73) and the slide tube (74), the sliding pipe (74) is fixedly connected with the bottom plate (75), the bottom plate (75) is arranged along the direction perpendicular to the guide frame (71), and the bottom of the bottom plate (75) is provided with the roller (76).

8. An animal holding device according to any one of claims 1 to 7, wherein the first fork (31) and the second fork (41) are both plastic forks.

9. An animal holding device according to any one of claims 1 to 7, wherein the top surface (11) of the animal holding device (100) is provided with a plurality of said food hangers (20), the plurality of food hangers (20) being arranged around said opening (11 a).

10. An animal holding device according to any one of claims 1 to 7, wherein said laboratory cage (10) is provided with a handle (80).