Rat fixing device based on basic experiment

Abstract

The utility model discloses a rat fixing device based on a basic experiment, which comprises a bottom plate, the bottoms of the two ends of the bottom plate are provided with supporting plates, the upper surface of the bottom plate is provided with two semicircular frames which are symmetrically distributed, the distance between the semicircular frames is adjustable, and the bottom of the bottom plate is provided with a driving mechanism used for driving the semicircular frames to move. A detachably connected fixing plate is arranged between the tail parts of the two semicircular frames, and each semicircular frame comprises a U-shaped frame. Through the arrangement of the sliding holes in the movable plates, the distance between the movable plates can be conveniently adjusted, so that when a certain part of a rat needs to be subjected to acupuncture and other operations, the movable plate at the part can be moved, the part is exposed, the experiment is conveniently carried out, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of basic experiments, and in particular relates to a rat fixing device based on basic experiments. Background Art

[0002] As a commonly used experimental animal, rats play an extremely important role in basic medical research. The basic experimental operations of rats include injection, blood collection, anesthesia, and dissection. These experimental operations are performed on various parts of the rat's body; for the above operations, the rats need to be fixed in advance.

[0003] Currently available fixation devices for rats mostly wrap the body of the rat tightly, leaving only the tail exposed, and can only perform tail vein operations on the rat. Although this method can fix the rat, it is not convenient to operate other parts of the rat's body, and other experimental operations cannot be performed, and the practicality is poor. Utility Model Content

[0004] The utility model aims to provide a rat fixing device based on basic experiments to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a rat fixing device based on basic experiments, comprising a base plate, support plates are arranged at the bottom of both ends of the base plate, two symmetrically distributed semicircular frames with adjustable spacing are arranged on the upper surface of the base plate, and a driving mechanism for driving the semicircular frames to move is arranged at the bottom of the base plate, a detachably connected fixing plate is arranged between the tails of the two semicircular frames, the semicircular frame comprises a U-shaped frame, a head plate and a tail plate are respectively arranged on the upper surfaces of both ends of the U-shaped frame, and the upper and lower ends of the head plate and the tail plate are fixedly connected by sliding rods, a plurality of movable plates are slidably connected to the two sliding rods, and a baffle is arranged at the end of the head plate, and an arc-shaped opening is arranged in the middle part of the surface of the baffle.

[0006] Preferably, the driving mechanism includes a motor installed at the bottom of the base plate, the shaft of the motor is connected to a bidirectional screw, both ends of the bidirectional screw are rotatably connected to a fixed seat through bearings, the fixed seat is fixedly connected to the bottom of the base plate, and a threaded block threadedly connected to the bidirectional screw is provided in the middle part of the bottom of the U-shaped frame.

[0007] Preferably, a movable opening is provided in the middle portion of the upper surface of the bottom plate along its width direction, and the threaded block passes through the movable opening and is slidably connected to the movable opening.

[0008] Preferably, trapezoidal grooves parallel to the bidirectional screw rods are provided on both sides of the upper surface of the bottom plate, and trapezoidal blocks slidably connected to the trapezoidal grooves are provided at the bottoms of both ends of the U-shaped frame.

[0009] Preferably, the side wall of the tail plate is provided with two limit rods distributed up and down, the ends of the limit rods are provided with blocks, the surface of the fixed plate is provided with two limit openings distributed corresponding to the limit rods, the limit openings are horizontally arranged, and the limit openings are slidably connected to the limit rods, the spacing between the block and the side wall of the tail plate is consistent with the thickness of the fixed plate, and the middle part of the surface of the fixed plate is provided with a horizontally distributed tail exposure opening.

[0010] Preferably, the upper and lower side walls of the movable plate are both provided with sliding holes, and the sliding holes are slidably connected to the sliding rods.

[0011] Preferably, oblong holes are provided on the surfaces of the head plate, the tail plate and the movable plate.

[0012] The rat fixing device of the utility model based on basic experiments has the following advantages:

[0013] 1. The utility model facilitates the adjustment of the spacing between multiple movable plates by setting the sliding holes on the movable plates, so that when it is necessary to perform other operations such as acupuncture on a certain part of the rat, the movable plate at that part can be moved to expose the part, which is convenient for the experiment and improves the convenience of operation. The semicircular frame is in a hollow state by setting the oblong holes on the surface of the head plate, the tail plate and the movable plate, which is convenient for experimental operations on various parts of the rat.

[0014] 2. When in use, separate the two relatively distributed semicircular frames, then place the rat between the two semicircular frames, start the motor to rotate the bidirectional screw rod, and under the action of the threaded block, the two semicircular frames are brought close to each other, so that the two semicircular frames clamp and fix the rat, and the rat can be firmly wrapped by the two semicircular frames, with a good fixing effect.

[0015] 3. When the two semicircular frames are combined, align the upper and lower limit openings on the surface of the fixing plate with the limit rods of the two tail plates at the tail plate and insert them, and cooperate with the stopper so that the fixing plate and the tail plates of the two semicircular frames are firmly fixed together, thereby achieving the blocking and fixing of the rat's tail, and the rat's tail can be exposed under the action of the tail exposure opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the semicircular frame in the utility model;

[0020] Figure 4 It is an exploded view of the movable plate and the sliding rod in the utility model;

[0021] Explanation of the markings in the figure: 1. Bottom plate; 2. Support plate; 3. Semicircular frame; 4. Fixed plate; 5. Trapezoidal groove; 6. Movable opening; 7. Motor; 8. Bidirectional screw rod; 9. Threaded block; 10. Head plate; 11. Tail plate; 12. Baffle plate; 13. Arc opening; 14. U-shaped frame; 16. Trapezoidal block; 17. Movable plate; 18. Sliding rod; 19. Oblong hole; 20. Limiting rod; 21. Block; 22. Limiting opening; 23. Exposed tail opening; 24. Sliding hole. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a rat fixation device based on a basic experiment of the utility model in conjunction with the accompanying drawings.

[0028] like Figure 1-4As shown, a rat fixing device based on basic experiments of the utility model comprises a base plate 1, support plates 2 are arranged at the bottom of both ends of the base plate 1, two symmetrically distributed semicircular frames 3 with adjustable spacing are arranged on the upper surface of the base plate 1, and a driving mechanism for driving the semicircular frames 3 to move is arranged at the bottom of the base plate 1, the driving mechanism comprises a motor 7 installed at the bottom of the base plate 1, a bidirectional screw rod 8 is connected to the shaft of the motor 7, and both ends of the bidirectional screw rod 8 are rotatably connected to a fixing seat through bearings, the fixing seat is fixedly connected to the bottom of the base plate 1, and a threaded block 9 threadedly connected to the bidirectional screw rod 8 is arranged at the middle part of the bottom of the U-shaped frame 14. When in use, the two relatively distributed semicircular frames 3 are separated, and then the rat is placed between the two semicircular frames 3, the motor 7 is started, and the bidirectional screw rod 8 is rotated. Under the action of the threaded block 9, the two semicircular frames 3 are close to each other, so that the two semicircular frames 3 clamp and fix the rat, and the rat can be firmly wrapped by the two semicircular frames 3, and the fixing effect is good. A movable opening 6 is provided in the middle of the upper surface of the bottom plate 1 along its width direction, and a threaded block 9 passes through the movable opening 6 and is slidably connected to the movable opening 6. The movable opening 6 provides a movable space for the threaded block 9. Trapezoidal grooves 5 parallel to the bidirectional screw rods 8 are provided on both sides of the upper surface of the bottom plate 1. Trapezoidal blocks 16 slidably connected to the trapezoidal grooves 5 are provided at the bottom of both ends of the U-shaped frame 14. Through the cooperation between the trapezoidal blocks 16 and the trapezoidal grooves 5, the U-shaped frame 14 is provided with an auxiliary support function, making the U-shaped frame 14 more stable when moving.

[0029] A detachably connected fixing plate 4 is arranged between the tail parts of the two semicircular frames 3. The semicircular frames 3 include a U-shaped frame 14. A head plate 10 and a tail plate 11 are respectively arranged on the upper surfaces of both ends of the U-shaped frame 14. The upper and lower ends of the head plate 10 and the tail plate 11 are fixedly connected by a sliding rod 18. A plurality of movable plates 17 are slidably connected to the two sliding rods 18. A baffle plate 12 is arranged at the end of the head plate 10. An arc-shaped opening 13 is arranged at the middle part of the surface of the baffle plate 12. The side wall of the tail plate 11 is provided with two upper and lower distributed limit rods 20, and the end of the limit rod 20 is provided with a stopper 21. The surface of the fixed plate 4 is provided with two limit openings 22 corresponding to the limit rods 20. The limit openings 22 are horizontally arranged, and the limit openings 22 are slidably connected with the limit rods 20. The spacing between the stopper 21 and the side wall of the tail plate 11 coincides with the thickness of the fixed plate 4. The middle part of the surface of the fixed plate 4 is provided with a horizontally distributed tail exposure opening 23. When the two semicircular frames 3 are merged, the upper and lower limit openings 22 on the surface of the fixed plate 4 are aligned with the limit rods 20 of the two tail plates 11 at the tail plate 11 and inserted, and cooperate with the stopper 21, so that the fixed plate 4 and the tail plates 11 of the two semicircular frames 3 are firmly fixed together, thereby realizing the blocking and fixation of the rat's tail, and under the action of the tail exposure opening 23, the rat's tail can be exposed. The upper and lower side walls of the movable plate 17 are provided with sliding holes 24, which are slidably connected to the sliding rod 18. The setting of the sliding holes 24 on the movable plate 17 facilitates the adjustment of the spacing between the multiple movable plates 17, so that when it is necessary to perform other operations such as acupuncture on a certain part of the rat, the movable plate 17 at that place can be moved to expose the part, which is convenient for the experiment and improves the convenience of operation. The surface of the head plate 10, the tail plate 11 and the movable plate 17 are all provided with oblong holes 19. The setting of the oblong holes 19 on the surface of the head plate 10, the tail plate 11 and the movable plate 17 makes the semicircular frame 3 in a hollow state, which is convenient for experimental operations on various parts of the rat.

[0030] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A rat fixation device based on basic experiments, characterized in that: The invention comprises a bottom plate (1), support plates (2) are arranged at the bottom of both ends of the bottom plate (1), two semicircular frames (3) which are symmetrically distributed and have adjustable spacing are arranged on the upper surface of the bottom plate (1), a driving mechanism for driving the semicircular frames (3) to move is arranged at the bottom of the bottom plate (1), and a detachably connected fixing plate (4) is arranged between the tails of the two semicircular frames (3); wherein: The semicircular frame (3) comprises a U-shaped frame (14), and a head plate (10) and a tail plate (11) are respectively arranged on the upper surfaces of both ends of the U-shaped frame (14), and the upper and lower ends of the head plate (10) and the tail plate (11) are fixedly connected by a sliding rod (18), and a plurality of movable plates (17) are slidably connected to the two sliding rods (18), and a baffle plate (12) is arranged at the end of the head plate (10), and an arc-shaped opening (13) is arranged in the middle of the surface of the baffle plate (12).

2. A rat fixing device based on basic experiments according to claim 1, characterized in that: The driving mechanism comprises a motor (7) mounted on the bottom of the base plate (1), the shaft of the motor (7) being connected to a bidirectional screw rod (8), both ends of the bidirectional screw rod (8) being rotatably connected to a fixing seat via bearings, the fixing seat being fixedly connected to the bottom of the base plate (1), and a threaded block (9) being threadedly connected to the bidirectional screw rod (8) is provided at the middle portion of the bottom of the U-shaped frame (14).

3. A rat fixing device based on basic experiments according to claim 2, characterized in that: A movable opening (6) is provided in the middle portion of the upper surface of the bottom plate (1) along its width direction, and the threaded block (9) passes through the movable opening (6) and is slidably connected to the movable opening (6).

4. A rat fixing device based on basic experiments according to claim 2, characterized in that: Trapezoidal grooves (5) parallel to the bidirectional screw rods (8) are provided on both sides of the upper surface of the bottom plate (1), and trapezoidal blocks (16) slidably connected to the trapezoidal grooves (5) are provided at the bottoms of both ends of the U-shaped frame (14).

5. A rat fixing device based on basic experiments according to claim 1, characterized in that: The side wall of the tail plate (11) is provided with two upper and lower limit rods (20), the end of the limit rod (20) is provided with a stopper (21), the surface of the fixed plate (4) is provided with two limit openings (22) corresponding to the limit rods (20), the limit openings (22) are arranged horizontally, and the limit openings (22) are slidably connected to the limit rods (20), the spacing between the stopper (21) and the side wall of the tail plate (11) is consistent with the thickness of the fixed plate (4), and the middle part of the surface of the fixed plate (4) is provided with a horizontally distributed tail exposure opening (23).

6. A rat fixing device based on basic experiments according to claim 1, characterized in that: The upper and lower side walls of the movable plate (17) are both provided with sliding holes (24), and the sliding holes (24) are slidably connected to the sliding rod (18).

7. A rat fixing device based on basic experiments according to claim 1, characterized in that: The surfaces of the head plate (10), the tail plate (11) and the movable plate (17) are all provided with oblong holes (19).

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