Medical experimental animal fixing device

Abstract

The invention provides a medical experimental animal fixing device, and relates to the field of medical experiments.The medical experimental animal fixing device is characterized in that an experiment table is fixedly connected to the upper end face of a base and is in an inclined state, and the front end of the experiment table inclines downwards by two degrees; the baffle is fixedly connected to the upper end face of the experiment table. The multiple sliding grooves are formed in the inner side of the experiment table. The number of the fixed bottom shells is two, and the two fixed bottom shells are fixedly connected to the lower end face of the front end of the experiment table. The number of the hinged bedplates is two, and the two hinged bedplates are hinged to the two sides of the experiment table respectively, so that the problems that in the using process of an existing medical experimental animal fixing device, when an experiment is conducted on an animal with the small size, due to the fact that the size of the experiment table is fixed, an experimenter is far away from the animal, and the animal is inconvenient to dissect and the like are solved; the experiment efficiency is influenced and the experiment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical experiments, and in particular to a medical experimental animal fixing device. Background Art

[0002] In medical experiments, it is often necessary to dissect animals and observe the state of their internal organs for pathological research. In order to facilitate the dissection of animals, it is usually necessary to fix the animals on the laboratory table and anesthetize them to prevent them from moving around and affecting the injection of anesthetics.

[0003] According to the application number: CN202022512729.0, an animal experiment fixing table for medical research is disclosed, including a support module, the support module is fixedly connected with five fixing modules, the support module includes a placement plate, the top surface of the placement plate is provided with five fixing grooves, the fixing module includes a bottom plate, the bottom surface of the bottom plate is fixedly connected to the bottom surface in the fixing groove, and two fixing plates are fixedly connected at the center position of the top surface of the bottom plate. In the utility model, the limbs or neck of the animal can be placed between the elastic ropes through the contact between the ratchet bar and the ratchet block, and the ratchet block can keep in contact with the ratchet bar under the action of the spring, so that when the sliding block moves to the side of the bottom plate, the sliding plate can pull the elastic rope so that the elastic rope binds the limbs or neck of the animal, and it is relatively simple to fix the animal, and it is not easy to cause harm to the animal when the elastic rope is used to bind the animal, which is conducive to the experiment and convenient to use.

[0004] However, during use, due to the different sizes of animals, when conducting experiments on smaller animals, the size of the experimental table is fixed, which causes the experimenter to be far away from the animal, making it inconvenient to perform dissection and other operations on the animal, thus affecting the efficiency of the experiment. Summary of the invention

[0005] In view of this, the present invention provides a medical experimental animal fixing device, which has the advantages of improving experimental efficiency and reducing labor intensity.

[0006] The present invention provides a device for fixing medical experimental animals, which specifically includes: a base, a laboratory table, a baffle, a slide, a fixed bottom shell, a hinged table plate, a fixed adjustment mechanism, a folding mechanism and a sewage discharge mechanism; the laboratory table is fixedly connected to the upper end surface of the base, the laboratory table is in an inclined state, and the front end of the laboratory table is tilted downward by two degrees; the baffle is fixedly connected to the upper end surface of the laboratory table; there are multiple slides, and the multiple slides are all opened on the inner side of the laboratory table; there are two fixed bottom shells, and the two fixed bottom shells are fixedly connected to the lower end surface of the front end of the laboratory table; there are two hinged table plates, and the two hinged table plates are respectively hinged on both sides of the laboratory table; the fixed adjustment mechanism is arranged on the outer side of the laboratory table; the folding mechanism is arranged on the inner side of the hinged table plate; the sewage discharge mechanism is arranged on the upper end surface of the laboratory table.

[0007] Furthermore, the fixed adjustment mechanism includes: a bidirectional screw, a rocker and a sliding rod; the bidirectional screw is rotatably connected to the lower end surface of the experimental bench; the rocker is fixedly connected to the rear end of the bidirectional screw; two sliding rods are provided, and both sliding rods are threadedly connected to the outside of the bidirectional screw.

[0008] Furthermore, the fixed adjustment mechanism also includes: guide grooves, sliders and connecting pieces; the guide grooves are provided in two groups, and the two groups of guide grooves are respectively opened on the inner sides of the two sliding rods; the sliders are provided in plurality, and the plurality of sliders are respectively slidably connected to the inner sides of the plurality of sliding grooves; the connecting pieces are provided in plurality, and the plurality of connecting pieces are respectively rotatably connected to the lower ends of the plurality of sliders, and the plurality of connecting pieces are respectively slidably connected to the inner sides of the two groups of guide grooves.

[0009] Furthermore, the fixed adjustment mechanism also includes: a fixed cylinder, a sliding sleeve, a compression spring and a rope buckle; the fixed cylinder is provided in plurality, and the plurality of fixed cylinders are respectively fixedly connected to the outer sides of the plurality of sliding blocks; the sliding sleeve is provided in plurality, and the plurality of sliding sleeves are respectively slidably connected to the inner sides of the plurality of fixed cylinders; the compression spring is provided in plurality, and one end of the plurality of compression springs is respectively fixedly connected to the inner sides of the plurality of sliding sleeves, and the other ends of the plurality of compression springs are respectively fixedly connected to the outer sides of the plurality of sliding blocks; the rope buckle is provided in plurality, and the plurality of rope buckles are respectively fixedly connected to the inner sides of the plurality of sliding sleeves.

[0010] Furthermore, the folding mechanism includes: a sliding plate and a tension spring; two sliding plates are provided, and the two sliding plates are respectively slidably connected to the two sides of the laboratory table; two groups of tension springs are provided, and the lower ends of the two groups of tension springs are respectively fixedly connected to the upper end surfaces of the two sliding plates, and the upper ends of the two groups of tension springs are fixedly connected to the inner side of the laboratory table.

[0011] Furthermore, the folding mechanism also includes: a limit groove, a pull rod, a first limit block and a first limit spring; the limit groove is provided with two groups, and the two groups of limit grooves are respectively opened on the inner side of the two sliding plates and the laboratory table; the pull rod is provided with two, and the two pull rods are respectively slidably connected to the inner side of the two hinged table plates; the first limit block is provided with two groups, and the two groups of first limit blocks are respectively fixedly connected to the outer sides of the two pull rods, and the two groups of first limit blocks are respectively inserted into the inner sides of the two groups of limit grooves; the first limit spring is provided with two groups, and one end of the two groups of first limit springs are respectively fixedly connected to the outer sides of the two groups of first limit blocks, and the other ends of the two groups of first limit springs are respectively fixedly connected to the inner sides of the two hinged table plates.

[0012] Furthermore, the folding mechanism also includes: a fixed plug block, a second limit block, a slot and a second limit spring; the fixed plug block is provided with two groups, and the two groups of fixed plug blocks are respectively fixedly connected to the outside of the two pull rods; the second limit block is provided with two groups, and the two groups of second limit blocks are respectively slidably connected to the inner sides of the two hinged table plates, and the two groups of second limit blocks are respectively inserted into the inner sides of the two groups of limit slots; the slot is provided with two groups, and the two groups of slots are respectively opened on the inner sides of the two groups of second limit blocks; the second limit spring is provided with two groups, and one end of the two groups of second limit springs are respectively fixedly connected to the outsides of the two groups of slots, and the other ends of the two groups of second limit springs are respectively fixedly connected to the inner sides of the two hinged table plates.

[0013] Furthermore, the sewage discharge mechanism includes: a sewage guide trough, a sewage outlet and a sewage collecting box; the sewage guide trough is opened on the upper end surface of the laboratory bench and the hinged table plate; the sewage outlet is provided with two groups, and the two groups of sewage outlets are both opened on the inner side of the sewage guide trough at the front end of the laboratory bench; the sewage collecting boxes are provided with two, and the two sewage collecting boxes are respectively slidably connected to the inner sides of the two fixed bottom shells, and the two sewage collecting boxes are respectively located below the two groups of sewage outlets.

[0014] Beneficial Effects

[0015] The present invention achieves the fixation of animals of different sizes by setting a fixed adjustment mechanism. After the animal's limbs are fixed by using a rope buckle, the rocker is rotated to make the rocker drive the bidirectional screw to rotate. The rotation of the bidirectional screw drives the slider to slide through the sliding rod under the action of the threaded connection with the sliding rod. The sliding of the slider drives the rope buckle to be tightened, so that the animal's limbs are stretched and fixed, thereby improving adaptability.

[0016] In addition, through the setting of the folding mechanism, the size of the experimental table can be changed. When conducting experiments on smaller animals, the pull rod can be pulled to drive the first limit block and the fixed plug block to slide. The sliding of the first limit block will disengage from the limit groove, and the sliding of the fixed plug block will be inserted on the inner side of the slot, causing the second limit block to slide toward the inner side of the hinged table plate, and the sliding of the second limit block will disengage from the limit groove. At this time, the hinged table plate can be opened, which is convenient for the experimenter to operate, improving the experimental efficiency and reducing the labor intensity.

[0017] In addition, through the setting of the sewage discharge mechanism, the collection of waste liquid during the experiment is realized. The waste liquid generated during the experiment will flow into the sewage trough, and under the action of the inclination of the laboratory table, it will flow into the sewage collecting box through the sewage discharge port for collection, thereby ensuring the cleanliness of the surface of the laboratory table, facilitating cleaning, and improving work efficiency.

[0018] In addition, through the setting of the above-mentioned mechanism, animals of different sizes can be fixed, the adaptability is improved, the size of the experimental table can be changed, which is convenient for experimenters to operate, improves experimental efficiency, reduces labor intensity, and collects waste liquid during the experiment, which is convenient for cleaning and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 It is a schematic structural diagram of the main body of the first embodiment of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the sliding rod of the first embodiment of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the connecting piece of the first embodiment of the present invention being split upward.

[0025] Figure 4 It is a schematic structural diagram of a cross-section of a fixing cylinder according to the first embodiment of the present invention.

[0026] Figure 5 It is a schematic structural diagram of a dirt collecting box according to the second embodiment of the present invention.

[0027] Figure 6 It is a schematic structural diagram of a cross-section of an articulated table plate according to a second embodiment of the present invention.

[0028] Figure 7 It is a schematic structural diagram of a cross-section of a test bench according to the second embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure of the limiting groove of the second embodiment of the present invention.

[0030] Fig. 9 It is a schematic structural diagram of a sliding plate according to a second embodiment of the present invention.

[0031] Fig.10 The second embodiment of the present invention Figure 7 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0032] Reference numerals list

[0033] 1. Base; 2. Laboratory table; 201. Baffle; 202. Slide; 3. Fixed bottom shell; 4. Articulated table; 5. Bidirectional screw; 501. Rocker; 6. Sliding rod; 601. Guide groove; 7. Sliding block; 701. Connector; 702. Fixed cylinder; 8. Sliding sleeve; 801. Compression spring; 9. Rope buckle; 10. Sliding plate; 1001. Tension spring; 1002. Limiting groove; 11. Pull rod; 1101. First limiting block; 1102. First limiting spring; 1103. Fixed plug-in block; 12. Second limiting block; 1201. Slot; 1202. Second limiting spring; 13. Sewage guide groove; 1301. Sewage outlet; 14. Sewage collecting box. DETAILED DESCRIPTION

[0034] Embodiment 1:

[0035] Please refer to Figure 1-Figure 4 As shown:

[0036] The present invention provides a medical experimental animal fixing device, comprising a base 1, an experimental table 2, a baffle 201, a slide groove 202, a fixed bottom shell 3, a hinged table plate 4 and a fixed adjustment mechanism; the experimental table 2 is fixedly connected to the upper end surface of the base 1, the experimental table 2 is in an inclined state, and the front end of the experimental table 2 is tilted downward by two degrees; the baffle 201 is fixedly connected to the upper end surface of the experimental table 2; a plurality of slide grooves 202 are provided, and the plurality of slide grooves 202 are all opened on the inner side of the experimental table 2; two fixed bottom shells 3 are provided, and the two fixed bottom shells 3 are fixedly connected to the lower end surface of the front end of the experimental table 2; two hinged table plates 4 are provided, and the two hinged table plates 4 are respectively hinged on both sides of the experimental table 2; the fixed adjustment mechanism is arranged on the outer side of the experimental table 2.

[0037] Among them, the fixed adjustment mechanism includes: a bidirectional screw 5, a rocker 501, a sliding rod 6, a guide groove 601, a slider 7, a connecting piece 701, a fixed cylinder 702, a sliding sleeve 8, a compression spring 801 and a rope buckle 9; the bidirectional screw 5 is rotatably connected to the lower end surface of the experimental table 2; the rocker 501 is fixedly connected to the rear end of the bidirectional screw 5; there are two sliding rods 6, and the two sliding rods 6 are both threadedly connected to the outside of the bidirectional screw 5; there are two groups of guide grooves 601, and the two groups of guide grooves 601 are respectively opened on the inner sides of the two sliding rods 6; there are multiple sliding blocks 7, and the multiple sliding blocks 7 are respectively slidably connected to the inner sides of the multiple sliding grooves 202; there are multiple connecting pieces 701, and the multiple The connecting members 701 are rotatably connected to the lower ends of the multiple sliders 7, and the multiple connecting members 701 are slidably connected to the inner sides of the two groups of guide grooves 601; there are multiple fixed cylinders 702, and the multiple fixed cylinders 702 are respectively fixedly connected to the outer sides of the multiple sliders 7; there are multiple sliding sleeves 8, and the multiple sliding sleeves 8 are respectively slidably connected to the inner sides of the multiple fixed cylinders 702; there are multiple compression springs 801, one ends of the multiple compression springs 801 are respectively fixedly connected to the inner sides of the multiple sliding sleeves 8, and the other ends of the multiple compression springs 801 are respectively fixedly connected to the outer sides of the multiple sliders 7; there are multiple rope buckles 9, and the multiple rope buckles 9 are respectively fixedly connected to the inner sides of the multiple sliding sleeves 8.

[0038] The specific usage and function of this embodiment: after fixing the animal's limbs with the rope buckle 9, rotate the rocker 501 so that the rocker 501 drives the bidirectional screw 5 to rotate. The rotation of the bidirectional screw 5 will drive the slider 7 to slide through the slider 6 under the action of the threaded connection with the sliding rod 6. The sliding of the slider 7 will drive the rope buckle 9 to tighten, stretching and fixing the animal's limbs. The setting of the compression spring 801 can provide buffering to prevent the rope buckle 9 from directly stretching the animal's limbs and causing damage to the animal.

[0039] Embodiment 2:

[0040] On the basis of the first embodiment, Figure 5-Figure 10As shown, the folding mechanism includes: a sliding plate 10, a tension spring 1001, a limiting groove 1002, a pull rod 11, a first limiting block 1101, a first limiting spring 1102, a fixed plug block 1103, a second limiting block 12, a slot 1201 and a second limiting spring 1202; the folding mechanism is arranged on the inner side of the hinged table 4; two sliding plates 10 are provided, and the two sliding plates 10 are respectively slidably connected to the two sides of the experimental table 2; two groups of tension springs 1001 are provided, and the lower The ends are fixedly connected to the upper end surfaces of the two sliding plates 10, and the upper ends of the two groups of tension springs 1001 are fixedly connected to the inner side of the experimental table 2; there are two groups of limit grooves 1002, and the two groups of limit grooves 1002 are respectively opened on the inner sides of the two sliding plates 10 and the experimental table 2; there are two pull rods 11, and the two pull rods 11 are respectively slidably connected to the inner sides of the two hinged table plates 4; there are two groups of first limit blocks 1101, and the two groups of first limit blocks 1101 are respectively fixedly connected to the outer sides of the two pull rods 11, and the two groups of first limit blocks 1101 are respectively fixedly connected to the outer sides of the two pull rods 11. The limit blocks 1101 are respectively inserted into the inner sides of the two groups of limit grooves 1002; two groups of first limit springs 1102 are provided, one end of the two groups of first limit springs 1102 is respectively fixedly connected to the outer sides of the two groups of first limit blocks 1101, and the other ends of the two groups of first limit springs 1102 are respectively fixedly connected to the inner sides of the two hinged platforms 4; two groups of fixed plug-in blocks 1103 are provided, and the two groups of fixed plug-in blocks 1103 are respectively fixedly connected to the outer sides of the two pull rods 11; two groups of second limit blocks 12 are provided, and the two groups of second limit springs 1102 are respectively fixedly connected to the outer sides of the two pull rods 11. The positioning blocks 12 are respectively slidably connected to the inner sides of the two hinged table plates 4, and the two groups of second limiting blocks 12 are respectively inserted into the inner sides of the two groups of limiting grooves 1002; there are two groups of slots 1201, and the two groups of slots 1201 are respectively opened on the inner sides of the two groups of second limiting blocks 12; there are two groups of second limiting springs 1202, and one ends of the two groups of second limiting springs 1202 are respectively fixedly connected to the outer sides of the two groups of slots 1201, and the other ends of the two groups of second limiting springs 1202 are respectively fixedly connected to the inner sides of the two hinged table plates 4.

[0041] Specific usage and function of this embodiment: When conducting experiments on smaller animals, the pull rod 11 can be pulled to drive the pull rod 11 to drive the first limit block 1101 and the fixed plug block 1103 to slide. The sliding of the first limit block 1101 will disengage from the limit slot 1002, and the sliding of the fixed plug block 1103 will be inserted into the inner side of the slot 1201, so that the second limit block 12 slides toward the inner side of the hinged table 4, and the sliding of the second limit block 12 will disengage from the limit slot 1002. At this time, the hinged table 4 can be opened to facilitate the operation of the experimenter. At the same time, when the first limit block 1101 and the second limit block 12 are disengaged from the limit slot 1002, the sliding plate 10 loses its restriction and will slide upward under the action of the tension spring 1001 to block the empty edge of the experimental table 2.

[0042] Embodiment three:

[0043] On the basis of the first embodiment, Figure 5 As shown, the sewage discharge mechanism includes: a sewage guide trough 13, a sewage outlet 1301 and a sewage collecting box 14; the sewage discharge mechanism is arranged on the upper end surface of the experimental table 2; the sewage guide trough 13 is opened on the upper end surface of the experimental table 2 and the hinged table plate 4; there are two groups of sewage outlets 1301, and the two groups of sewage outlets 1301 are opened on the inner side of the sewage guide trough 13 at the front end of the experimental table 2; there are two sewage collecting boxes 14, and the two sewage collecting boxes 14 are respectively slidably connected to the inner sides of the two fixed bottom shells 3, and the two sewage collecting boxes 14 are respectively located below the two groups of sewage outlets 1301.

[0044] Specific usage and function of this embodiment: the waste liquid generated during the experiment will flow into the sewage trough 13, and under the effect of the inclination of the experimental table 2, it will flow into the sewage collection box 14 through the sewage outlet 1301 for collection.

[0045] In this article, there are a few points to note:

[0046] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0047] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0048] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A medical experimental animal fixing device, comprising a base (1), a laboratory table (2), a baffle (201), a slide groove (202), a fixed bottom shell (3), a hinged table plate (4), a fixed adjustment mechanism, a folding mechanism and a sewage discharge mechanism; the laboratory table (2) is fixedly connected to the upper end surface of the base (1), the laboratory table (2) is in an inclined state, and the front end of the laboratory table (2) is inclined downward by two degrees; the baffle (201) is fixedly connected to the upper end surface of the laboratory table (2); a plurality of slide grooves (202) are provided, and the plurality of slide grooves (202) are all opened on the inner side of the laboratory table (2); the characteristics are: The fixed bottom shells (3) are provided with two, and the two fixed bottom shells (3) are fixedly connected to the lower end surface of the front end of the experimental table (2); the hinged table plates (4) are provided with two, and the two hinged table plates (4) are respectively hinged to the two sides of the experimental table (2); the fixed adjustment mechanism is arranged on the outside of the experimental table (2); the folding mechanism is arranged on the inside of the hinged table plates (4); and the sewage discharge mechanism is arranged on the upper end surface of the experimental table (2).

2. A medical experimental animal fixation device as claimed in claim 1, characterized in that: The fixed adjustment mechanism comprises: a bidirectional lead screw (5), a rocker (501) and a sliding rod (6); the bidirectional lead screw (5) is rotatably connected to the lower end surface of the experimental table (2); the rocker (501) is fixedly connected to the rear end of the bidirectional lead screw (5); two sliding rods (6) are provided, and both sliding rods (6) are threadedly connected to the outer side of the bidirectional lead screw (5).

3. A medical experimental animal fixation device as claimed in claim 2, characterized in that: The fixed adjustment mechanism further comprises: a guide groove (601), a slider (7) and a connecting piece (701); the guide groove (601) is provided with two groups, and the two groups of guide grooves (601) are respectively opened on the inner sides of the two sliding rods (6); the slider (7) is provided with a plurality of sliders, and the plurality of sliders (7) are respectively slidably connected to the inner sides of the plurality of sliding grooves (202); the connecting piece (701) is provided with a plurality of connecting pieces (701), and the plurality of connecting pieces (701) are respectively rotatably connected to the lower ends of the plurality of sliders (7), and the plurality of connecting pieces (701) are respectively slidably connected to the inner sides of the two groups of guide grooves (601).

4. A medical experimental animal fixation device as claimed in claim 3, characterized in that: The fixed adjustment mechanism further comprises: a fixed cylinder (702), a sliding sleeve (8), a compression spring (801) and a rope buckle (9); the fixed cylinder (702) is provided in plurality, and the plurality of fixed cylinders (702) are respectively fixedly connected to the outer sides of the plurality of sliding blocks (7); the sliding sleeve (8) is provided in plurality, and the plurality of sliding sleeves (8) are respectively slidably connected to the inner sides of the plurality of fixed cylinders (702); the compression spring (801) is provided in plurality, and one end of the plurality of compression springs (801) is respectively fixedly connected to the inner sides of the plurality of sliding sleeves (8), and the other end of the plurality of compression springs (801) is respectively fixedly connected to the outer sides of the plurality of sliding blocks (7); the rope buckle (9) is provided in plurality, and the plurality of rope buckles (9) are respectively fixedly connected to the inner sides of the plurality of sliding sleeves (8).

5. A medical experimental animal fixation device as claimed in claim 1, characterized in that: The folding mechanism comprises: a sliding plate (10) and a tension spring (1001); two sliding plates (10) are provided, and the two sliding plates (10) are respectively slidably connected to the two sides of the experimental table (2); two groups of tension springs (1001) are provided, and the lower ends of the two groups of tension springs (1001) are respectively fixedly connected to the upper end surfaces of the two sliding plates (10), and the upper ends of the two groups of tension springs (1001) are both fixedly connected to the inner side of the experimental table (2).

6. A medical experimental animal fixation device as claimed in claim 5, characterized in that: The folding mechanism further comprises: a limiting groove (1002), a pull rod (11), a first limiting block (1101) and a first limiting spring (1102); the limiting groove (1002) is provided with two groups, and the two groups of limiting grooves (1002) are respectively opened on the inner sides of the two sliding plates (10) and the experimental table (2); the pulling rod (11) is provided with two, and the two pulling rods (11) are respectively slidably connected to the inner sides of the two hinged table plates (4); the first limiting block (1101) is provided with two groups The two groups of first limit blocks (1101) are respectively fixedly connected to the outer sides of the two pull rods (11), and the two groups of first limit blocks (1101) are respectively inserted into the inner sides of the two groups of limit grooves (1002); the first limit springs (1102) are provided with two groups, one end of the two groups of first limit springs (1102) are respectively fixedly connected to the outer sides of the two groups of first limit blocks (1101), and the other ends of the two groups of first limit springs (1102) are respectively fixedly connected to the inner sides of the two hinged table plates (4).

7. A medical experimental animal fixation device as claimed in claim 6, characterized in that: The folding mechanism further comprises: a fixed plug block (1103), a second limiting block (12), a slot (1201) and a second limiting spring (1202); the fixed plug block (1103) is provided with two groups, and the two groups of fixed plug blocks (1103) are respectively fixedly connected to the outside of the two pull rods (11); the second limiting block (12) is provided with two groups, and the two groups of second limiting blocks (12) are respectively slidably connected to the inside of the two hinged table plates (4), and the two groups of second limiting blocks (12 ) are respectively inserted into the inner sides of the two groups of limit slots (1002); the slots (1201) are provided in two groups, and the two groups of slots (1201) are respectively opened on the inner sides of the two groups of second limit blocks (12); the second limit springs (1202) are provided in two groups, one end of the two groups of second limit springs (1202) are respectively fixedly connected to the outer sides of the two groups of slots (1201), and the other ends of the two groups of second limit springs (1202) are respectively fixedly connected to the inner sides of the two hinged table plates (4).

8. A medical experimental animal fixation device as claimed in claim 1, characterized in that: The sewage discharge mechanism comprises: a sewage guide groove (13), a sewage discharge outlet (1301) and a sewage collection box (14); the sewage guide groove (13) is provided on the upper end surface of the experimental table (2) and the hinged table plate (4); the sewage discharge outlet (1301) is provided with two groups, and the two groups of sewage discharge outlets (1301) are both provided on the inner side of the sewage guide groove (13) at the front end of the experimental table (2); the sewage collection box (14) is provided with two, and the two sewage collection boxes (14) are respectively slidably connected to the inner sides of the two fixed bottom shells (3), and the two sewage collection boxes (14) are respectively located below the two groups of sewage discharge outlets (1301).

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