CN219288419U

CN219288419U - Animal cage for experiments

Info

Publication number: CN219288419U
Application number: CN202223594793.3U
Authority: CN
Inventors: 邱业峰; 周冬生; 胡凌飞; 高波; 吕蒙; 杨文慧; 赵月峨; 赵银龙; 刘玉杰; 刘闯
Original assignee: Academy of Military Medical Sciences AMMS of PLA; Beijing Huironghe Technology Co Ltd
Current assignee: Academy of Military Medical Sciences AMMS of PLA; Beijing Huironghe Technology Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-07-04
Anticipated expiration: 2032-12-28

Abstract

The utility model belongs to the technical field of biosafety experimental equipment, and discloses an experimental animal cage which comprises a cage body, a fixed rod, an extrusion screen plate and a screw rod transmission assembly; the cage body is internally provided with a fixed rod, an extrusion screen plate is arranged on the fixed rod in a sliding way, the extrusion screen plate is parallel to the front and the back of the cage body and divides the cage body into a front cavity and a back cavity, and the front cavity is a movable space of animals; a screw rod is rotatably arranged in the cage body close to the right side surface, and two ends of the screw rod are rotatably arranged at the front end and the rear end of the cage body; the screw rod is screwed with a connecting piece, and the connecting piece is fixedly connected with the extrusion screen plate; the front end of the screw rod is provided with a screw rod handle; the screw handle is rotated to drive the screw to rotate, so that the connecting piece drives the extrusion screen plate to move back and forth along the screw. According to the utility model, the screw rod handle is rotated to drive the extrusion screen plate to move back and forth, so that the movable space of animals is changed, the experimental operation is convenient, the driving motor and other parts are not needed, the structure is simple and reliable, the cost is low, and the use and maintenance are convenient.

Description

Animal cage for experiments

Technical Field

The utility model belongs to the technical field of biosafety experimental equipment, and particularly relates to an experimental animal cage.

Background

Animal experiments are an important means for biomedical research to obtain relevant data. Studies of vaccines and the like require animal experiments, particularly non-human primate experiments, such as monkeys. In the biosafety experiment, a series of experimental operations such as aerosol infection, vaccine injection, blood sampling and the like are carried out on animals such as monkeys, the animals can run everywhere in a cage, the grabbing difficulty is high, meanwhile, the animals are easily frightened and counteracted in the grabbing process, personnel scratch is easy to be caused, the infection risk is high, and a monkey cage convenient to operate is needed.

Patent document CN207355186U provides a large animal cage with an adjustable inner space, which adjusts the inner space through a partition plate, and when aerosol infection, vaccine injection, blood sampling and the like are performed, the animal is adjusted to the front through the partition plate so as to be convenient to grasp. However, the partition plate of the cage moves in an electric mode, so that the structure is complex, the cost is high, the reliability is low, the disassembly and the maintenance are inconvenient, and the cage needs to be further improved.

Disclosure of Invention

The utility model aims to solve at least one technical problem in the background technology, and provides an experimental animal cage which can drive an extrusion screen plate to move back and forth by rotating a screw rod handle, so that the moving space of an animal is changed, experimental operations such as aerosol infection, vaccine injection, blood sampling and the like are conveniently carried out on the animal, various experimental operations can be completed by a single person, and parts such as a driving motor and the like are not needed.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

an experimental animal cage comprises a cage body, a fixed rod, an extrusion screen plate and a screw transmission assembly;

the rear end of the cage body is opened, and the front end of the cage body is provided with an openable cage door;

a plurality of fixing rods are fixedly arranged in the cage body, an extrusion screen plate is slidably arranged on the fixing rods, the extrusion screen plate is parallel to the front and rear surfaces of the cage body and divides a containing cavity of the cage body into a front cavity and a rear cavity, and the front cavity is a movable space of animals;

a screw rod is rotatably arranged in the cage body close to the right side surface, and two ends of the screw rod are rotatably arranged at the front end and the rear end of the cage body; the screw rod is screwed with a connecting piece, and the connecting piece is fixedly connected with the extrusion screen plate; the front end of the screw rod is positioned at the front side of the cage body and is fixedly provided with a screw rod handle, and the screw rod handle is rotated to drive the screw rod to rotate, so that the connecting piece drives the extrusion screen plate to move back and forth along the screw rod.

Further, a bottom part is arranged at the bottom of the cage body, and comprises a supporting frame, a connecting rod and a tray; the support frames are respectively arranged at four corners of the bottom of the cage body, the bottom of each support frame is provided with a movable pulley, and a connecting rod is fixedly arranged between two adjacent support frames; the tray is connected to the two connecting rods in a sliding mode, and the tray is used for receiving excrement of animals.

Further, slide rails are arranged on the front connecting rod and the rear connecting rod of the bottom part, and the tray is connected to the slide rails in a sliding mode.

Further, a tray handle is provided at the outer end side of the tray.

Furthermore, the tray handle is arranged close to the front side of the cage body, and a limiting locking structure is arranged on the support frame of the tray handle, which is close to the front side of the cage body, and is used for locking and fixing the tray in a non-pulled-out state.

Further, the cage body is formed by encircling a bottom screen plate, a front screen plate, a left screen plate, a right screen plate and a top screen plate;

the front screen plate is horizontally provided with a partition plate, and the partition plate divides the front screen plate into an upper front screen plate and a lower front screen plate;

the upper front screen plate is provided with grid meshes, and the vertical spacing of the grid meshes is larger than the transverse spacing;

the lower front screen plate is provided with a cage door for opening or closing.

Further, the cage door is a sliding door and comprises a fixed door which is fixedly arranged and a movable door which is movably arranged.

Further, the movable door is positioned at the left side of the fixed door, and a push-pull door lock is arranged on the left side screen plate close to the movable door and used for locking and fixing when the movable door is closed.

Further, a mounting plate is arranged on the left screen plate close to the movable door, and a push-pull door lock is fixedly arranged on the mounting plate; the end of the sliding door lock is convexly provided with a buckle, the sliding door is provided with a clamping groove buckled with the buckle, and locking or unlocking of the movable door is realized through buckling or separating the buckle and the clamping groove.

Further, a drinking water box and a hamper are detachably arranged on the upper front screen plate.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The experimental animal cage provided by the utility model can drive the extrusion screen plate to move back and forth by rotating the screw rod handle, so that the moving space of animals is changed, experimental operations such as aerosol infection, vaccine injection, blood sampling and the like are conveniently carried out on the animals, various experimental operations can be completed by a single person, and parts such as a driving motor and the like are not needed;

(2) According to the experimental animal cage provided by the utility model, the tray for bearing animal excreta is slidably arranged at the bottom of the cage body, so that the tray can be conveniently pulled out periodically for cleaning, and the sanitation and the cleanliness of animal cages are ensured; meanwhile, the tray handle is arranged close to the front side of the cage body, a limiting locking structure is arranged on the support frame, close to the tray handle, of the front side of the cage body and used for locking and fixing the tray in a non-pulled-out state, so that the tray is prevented from automatically sliding out in the use process, the use is convenient, the limiting locking structure is arranged close to the tray handle, the manual operation of the limiting locking structure and the manual operation of the tray handle are convenient, and the operation is more convenient;

(3) According to the experimental animal cage provided by the utility model, the front side screen plate is divided into the upper part and the lower part, the cage door is arranged at the lower part of the front side screen plate, and is arranged as a sliding door, and the opening of the cage door is small, so that the cage door is not too large in potential safety hazard even being opened in the experimental operation process, and the experimental animal cage is especially suitable for biological safety experiments and has good safety; meanwhile, the sliding door lock is arranged on the left screen plate and close to the movable door of the sliding door, so that the movable door can be locked when the movable door is closed, potential safety hazards caused by pushing and pulling the movable door by animals are avoided, and the safety is further improved;

(4) According to the experimental animal cage provided by the utility model, the vertical spacing of the grid meshes of the upper part of the front side screen plate is larger than the transverse spacing, so that the animal arm can conveniently pass through the grid meshes when experimental operations such as blood sampling, grabbing, vaccine injection and the like are performed, and the shape of the grid meshes is convenient for adjusting the operation height, so that the experimental operation is convenient; meanwhile, the upper part of the front side screen plate is detachably provided with a drinking water box and a food box, so that animals can be fed conveniently, and the diet device can be detached and cleaned regularly.

Drawings

FIG. 1 is a schematic view of a experimental animal cage according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic diagram of a second embodiment of the experimental animal cage;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic diagram of a front view frame structure of an experimental animal cage with grid mesh removed according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a rear view frame structure of an experimental animal cage with grid mesh removed according to an embodiment of the present utility model;

the figure indicates:

10-animal cages for experiments; 100-cage body; 200-fixing rods; 300-extruding the screen plate; 400-screw rod; 500-connectors; 600-screw handle;

110-a bottom part; 120-front screen plate; 130-left mesh plate; 140-right screen; 150-top screen plate;

111-supporting frames; 112-a tray handle; 113-a connecting rod; 114-a tray; 115-limit locking structure;

121-an outer frame; 122-dividing plates; 123-sliding door; 124-a clamping groove; 125-drinking water box; 126-a hamper;

131-mounting plates; 132-push-pull door lock.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Example 1

Referring to fig. 1-6, an embodiment of the present utility model provides an experimental animal cage 10 comprising a cage body 100, a fixing rod 200 (see fig. 5), an extrusion screen 300, and a screw drive assembly.

The cage body 100 is a containing cavity formed by enclosing a bottom screen plate, a front screen plate 120, a left screen plate 130, a right screen plate 140 and a top screen plate 150, the rear end of the cage body 100 is opened, and the front screen plate 120 is provided with a cage door which can be opened and closed.

The novel animal cage is characterized in that 4 fixing rods 200 are fixedly arranged in the cage body 100 in parallel along the left upper direction, the left lower direction, the right upper direction and the right lower direction, an extrusion screen 300 is slidably arranged on the fixing rods 200, the extrusion screen 300 is parallel to the front surface and the rear surface of the cage body 100, the accommodating cavity of the cage body 100 is divided into a front cavity and a rear cavity, and the front cavity is an animal movable space.

In other embodiments, the number of the fixing rods 200 is not limited to 4, but may be single, 2 or 3, etc., and the embodiment of the present utility model uniformly distributes the 4 fixing rods 200, which is beneficial to improving the stability of the extruded screen 300 during movement.

Referring to fig. 5-6, a screw 400 is rotatably disposed in the cage 100 near the right screen 140, and two ends of the screw 400 are rotatably disposed at the front and rear ends of the cage 100; a connecting piece 500 is screwed on the screw 400, and the connecting piece 500 is fixedly connected with the extrusion screen 300; a screw handle 600 is fixedly arranged at the front end of the screw 400 at the front side of the cage 100; rotating the screw handle 600 drives the screw 400 to rotate, so that the connecting piece 500 drives the extrusion screen 300 to move back and forth along the screw 400, and the size of the animal moving space in the front chamber of the cage 100 is changed.

The experimental animal cage provided by the embodiment of the utility model can drive the extrusion screen 300 to move back and forth by rotating the screw handle 600, so that the moving space of animals is changed, experimental operations such as aerosol infection, vaccine injection, blood sampling and the like are conveniently carried out on the animals, various experimental operations can be completed by a single person, components such as a driving motor and the like are not needed, and the experimental animal cage has the advantages of simple and reliable structure, low manufacturing cost and convenience in use and maintenance.

Example 2

The embodiment of the utility model is based on the embodiment 1, the following improvement is made:

the bottom of the cage 100 is provided with a bottom part, and the bottom part comprises a supporting frame 111, a connecting rod 113 and a tray 114; the supporting frames 111 are respectively arranged at four corners of the bottom of the cage body 100, the bottoms of the supporting frames 111 are provided with movable pulleys convenient to move, and a connecting rod 113 is fixedly arranged between two adjacent supporting frames 111; a sliding rail is arranged on the front connecting rod 113 and the rear connecting rod 113 of the bottom part, and the tray 114 is connected to the sliding rail in a sliding way; the tray 114 is used for receiving animal excrement, the tray handle 112 is arranged at the outer end side of the tray 114, so that the animal excrement can be conveniently and regularly cleaned by pulling out the tray 114 through the tray handle 112, and the cleanliness and the sanitation of an animal cage are ensured.

In addition, as shown in fig. 1-2, the tray handle 112 is disposed near the front side of the cage, and a limit locking structure 112 is disposed on the support frame 111 of the tray handle 11 near the front side of the cage, for locking and fixing the tray 114 in a non-pulled-out state, so as to avoid the tray 114 from automatically sliding out during use, and facilitate the use, and the limit locking structure is disposed near the tray handle 112, so that the operation of the limit locking structure 115 by one hand and the operation of the tray handle 112 by the other hand are facilitated, and the operation is more convenient.

In some embodiments, the limit locking structure 115 may use an existing push-type elastic latch, where the push-type elastic latch may eject or retract the limit bump by pressing, and when the tray 114 is in the non-pulled state, the push-type elastic latch is blocked on the outer end of the tray 114 by pressing the ejected limit bump, so as to achieve locking and fixing of the tray 114 in the non-pulled state.

Example 3

The embodiment of the utility model is based on the embodiment 1 or 2, the following improvement is made:

a partition plate 122 is horizontally arranged on the front screen plate 120, and the partition plate 122 partitions the front screen plate 120 into an upper front screen plate and a lower front screen plate;

the upper front screen plate is provided with grid meshes, the vertical spacing of the grid meshes is larger than the transverse spacing, and the purpose of the arrangement is that: when the experimental operations such as blood sampling, grabbing, vaccine injection and the like are carried out, the arm of an animal can conveniently pass through the grid mesh, and the shape of the grid mesh is convenient for adjusting the operation height, so that the experimental operation is convenient.

Meanwhile, the upper front screen 120 is detachably provided with a drinking box 125 and a food box 126, for example, the drinking box 125 and the food box 126 can be screwed and fixed on the front screen 120 through connection devices such as iron wires, and can be detachably and fixedly connected through connection plates and bolts, so that animals can be fed conveniently, and the diet devices can be detached and cleaned regularly.

The lower front screen plate is provided with a cage door for opening or closing, the cage door is a sliding door 123 (see fig. 3), and comprises a fixed door which is fixedly arranged and a movable door which is movably arranged; the movable door is located at the left side of the fixed door, and a push-pull door lock 132 (see fig. 4) is arranged on the left side screen 130 close to the movable door, and is used for locking and fixing when the movable door is closed.

Specifically, a mounting plate 131 is disposed on the left screen 130 near the movable door, and a push-pull door lock 132 is fixedly mounted on the mounting plate 131; the end of the sliding door lock 132 is provided with a buckle in a protruding manner, the sliding door 123 is provided with a clamping groove 124 buckled with the buckle, and locking or unlocking of the movable door is achieved through buckling or separating the buckle and the clamping groove 124.

According to the embodiment of the utility model, the cage door is arranged as the sliding door 123, and the opening of the cage door is small, so that the cage door is not too large in potential safety hazard even being opened in the experimental operation process, and the cage door is particularly suitable for biological safety experiments and has good safety; meanwhile, the sliding door lock 132 is arranged on the left screen plate 130 and close to the sliding door 123, so that the sliding door can be locked when the sliding door is closed, potential safety hazards caused by pushing and pulling the sliding door by animals are avoided, and safety is further improved.

The foregoing description is only exemplary of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the scope of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The experimental animal cage is characterized by comprising a cage body, a fixed rod, an extrusion screen plate and a screw transmission assembly;

2. The laboratory animal cage according to claim 1, characterized in that the bottom of the cage body is provided with a bottom part comprising a support frame, a connecting rod and a tray; the support frames are respectively arranged at four corners of the bottom of the cage body, the bottom of each support frame is provided with a movable pulley, and a connecting rod is fixedly arranged between two adjacent support frames; the tray is connected to the two connecting rods in a sliding mode, and the tray is used for receiving excrement of animals.

3. An experimental animal cage according to claim 2, characterized in that the two connecting rods of the bottom part are provided with sliding rails on which the tray is slidingly connected.

4. The laboratory animal cage according to claim 2, characterized in that the tray outer end side is provided with a tray handle.

5. The laboratory animal cage of claim 4, wherein the tray handle is disposed adjacent to a front side of the cage, and a retaining locking structure is disposed on a support frame of the front side of the cage adjacent to the tray handle for locking and fixing the tray in a non-pulled-out state.

6. The experimental animal cage according to claim 1, wherein the cage body is formed by enclosing a bottom screen, a front screen, a left screen, a right screen and a top screen;

7. The laboratory animal cage of claim 6, wherein the cage door is a sliding door comprising a fixed door fixedly disposed and a movable door movably disposed.

8. The experimental animal cage according to claim 7, wherein the movable door is located at the left side of the fixed door, and a push-pull door lock is provided on the left side screen plate near the movable door for locking and fixing when the movable door is closed.

9. The experimental animal cage according to claim 8, wherein a mounting plate is arranged on the left screen plate near the movable door, and a push-pull door lock is fixedly arranged on the mounting plate; the end of the sliding door lock is convexly provided with a buckle, the sliding door is provided with a clamping groove buckled with the buckle, and locking or unlocking of the movable door is realized through buckling or separating the buckle and the clamping groove.

10. The laboratory animal cage of claim 6, wherein the upper front net plate is detachably provided with a drinking water box and a food box.