Rat fixing device

Abstract

The utility model relates to the technical field of fixing devices, and discloses a rat fixing device which comprises a base, a sliding groove is formed in the top of the base, a first round pipe is installed in the sliding groove in a sliding mode, and a fixing mechanism for fixing a rat is arranged on the first round pipe. The fixing mechanism comprises two electric telescopic rods, a supporting plate, a lower pressing plate, a limb fixing assembly, a head fixing assembly and a tail fixing assembly. The rat fixing device has the advantages that the positions of the four vertical rods can be flexibly adjusted and fixed according to different body types of rats, then the fixing effect on the four limbs of the rats is improved, the trunk of the rats is clamped and fixed through the supporting plate and the lower pressing plate, the stretching length of the telescopic plate is adjusted according to the body length of the rats, and therefore the fixing effect on the four limbs of the rats is improved. The head of the rat can be clamped and fixed through the clamping plate, buffering is conducted through the spring, the head of the rat is prevented from being hurt by the head clamping plate, the tail of the rat can be clamped, the tail is prevented from swinging in an experiment, and the experiment is prevented from being interfered.

Description

Technical Field

[0001] This utility model relates to the field of restraint device technology, and in particular to a rat restraint device. Background Technology

[0002] Rats are one of the most commonly used laboratory animals in medicine. Securely and accurately restraining unanesthetized rats is a prerequisite for conducting experiments on them. Currently used rat restraint devices either only fix the rat's torso, lacking necessary head restraint, causing the rat's head to twist during experiments, hindering the experimenter's work; or, while other restraint devices can fix both the rat's head and torso, these devices are more complex and costly.

[0003] In the prior art, Chinese Patent No. CN202409200U discloses a rat restraint device, including a trunk restraint and a head restraint; the trunk restraint is a hollow cylinder, and the head restraint is a hollow cone, with the head restraint connected to the trunk restraint; the trunk restraint has four through holes, the positions of which are adapted to the rat's limbs. However, rats vary in size, resulting in this device only being able to restrain a specific type of rat, limiting its applicability.

[0004] Therefore, there is a need to design a rat restraint device that can restrain rats of various body sizes and has a wide range of applications. Utility Model Content

[0005] The purpose of this invention is to provide a rat restraint device that can restrain rats of various sizes and has a wide range of applications.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rat fixation device, including a base, a groove is provided on the top of the base, a round tube is slidably installed in the groove, and a fixation mechanism for fixing the rat is provided on the round tube.

[0007] By adopting the above technical solution, targeted adjustments can be made according to rats of different body sizes, thereby clamping and fixing rats of different sizes, expanding the applicability of the device.

[0008] The present invention is further configured such that: the fixing mechanism includes two electric telescopic rods, a support plate, a lower pressure plate, a limb fixing assembly, a head fixing assembly, and a tail fixing assembly. The two electric telescopic rods are respectively fixedly installed on the top inner wall and the bottom inner wall of the circular tube. The support plate is fixedly installed on the output shaft end of the lower electric telescopic rod, and a placement groove is provided on the top of the support plate. The lower pressure plate is fixedly installed on the output shaft end of the upper electric telescopic rod, and a through groove is provided on the bottom of the lower pressure plate. The limb fixing assembly is set on the support plate, the head fixing assembly is set on the left side of the lower pressure plate, and the tail fixing assembly is set on the right side of the lower pressure plate.

[0009] By adopting the above technical solution, the extension of two electric telescopic rods can be controlled according to the rat's body size, thereby clamping and fixing the rat's torso.

[0010] The present invention is further configured as follows: the limb fixing assembly includes four vertical rods, four rotating seats, four round tubes, four washers, and four knob bolts. The top of the support plate has four symmetrically distributed adjustment slots, the bottom of which are all open. The four vertical rods are slidably installed in the four adjustment slots. The four rotating seats are rotatably installed on the top of the four vertical rods. The four round tubes are rotatably installed on the top of the four rotating seats. The four washers are respectively sleeved on the four vertical rods and abut against the bottom of the support plate. The four knob bolts are threaded on the four vertical rods and in close contact with the corresponding washers.

[0011] By adopting the above technical solution, the four vertical bars can be adjusted forward and backward according to the different height and arm span of the rat, thus facilitating the fixation of the rat's limbs.

[0012] The present invention is further configured such that: guide grooves are provided on both the left and right sides of the four adjustment grooves, guide blocks are fixedly installed on both the left and right sides of the four vertical rods, and the eight guide blocks are slidably installed in the corresponding guide grooves.

[0013] By adopting the above technical solution, the movement of the four vertical rods can be guided and constrained, thereby improving the stability of the movement of the four vertical rods.

[0014] The present invention is further configured as follows: the head fixing assembly includes a telescopic plate, a sliding rod, a mounting plate, a spring, a first hinge seat, a first hinge block, and a head clamping plate. The left side of the lower pressure plate has a telescopic groove located above the through groove. The telescopic plate is slidably installed in the telescopic groove, and the left side of the telescopic plate extends to the outside of the telescopic groove. The sliding rod is slidably installed on the telescopic plate. The mounting plate is fixedly installed at the bottom end of the sliding rod. The spring is sleeved on the sliding rod. The bottom end of the spring is fixedly connected to the mounting plate, and the top end of the spring is fixedly connected to the telescopic plate. The first hinge seat is fixedly installed at the bottom of the mounting plate. The first hinge block is rotatably installed on the first hinge seat. The head clamping plate is fixedly installed at the bottom of the first hinge block. The bottom of the head clamping plate has a conical groove.

[0015] By adopting the above technical solution, the extension length of the telescopic plate can be adjusted according to the rat's body length, thereby clamping and fixing the rat's head, and using springs for cushioning to prevent the head clamp from injuring the rat's head.

[0016] A further feature of this invention is that a limiting plate is fixedly installed at the top of the slide rod.

[0017] By adopting the above technical solution, the sliding range of the slide bar can be limited.

[0018] The present invention is further configured such that: the tail fixing assembly includes a second hinge seat, a connecting rod, a third hinge seat, a clamping plate, and a tension spring. The second hinge seat is fixedly installed on the right side of the lower pressure plate, the connecting rod is rotatably installed on the second hinge seat, the third hinge seat is fixedly installed on the end of the connecting rod away from the lower pressure plate, the clamping plate is fixedly installed on the bottom of the third hinge seat, and an upper clamping groove is provided on the bottom of the clamping plate. The tension spring is fixedly installed on the right side of the lower pressure plate, and the side of the tension spring away from the lower pressure plate is fixedly connected to the connecting rod.

[0019] By adopting the above technical solution, the tail of the rat can be clamped to prevent it from swinging during the experiment and thus avoiding interference with the experiment.

[0020] A further feature of this invention is that the top of the support plate is provided with a lower clamping groove, and the left side of the lower clamping groove is connected to the placement groove.

[0021] By adopting the above technical solution, the clamping and fixation of the rat's tail can be further strengthened.

[0022] A further feature of this invention is that: two symmetrically distributed arc-shaped guide grooves are provided at the bottom of the chute, and two annular guide blocks are fixedly installed on the circular tube, with the two annular guide blocks slidably installed in the two arc-shaped guide grooves respectively.

[0023] By adopting the above technical solution, it is possible to easily control the rotation of the circular tube, thereby flipping the rat over.

[0024] A further feature of this invention is that the support plate has a first operating hole, and the bottom of the circular tube has a second operating hole.

[0025] By adopting the above technical solution, it is convenient to conduct experiments and operations on the back of rats.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model utilizes a limb fixation assembly consisting of four vertical rods, four rotating seats, four round tubes, four gaskets, and four knob bolts. It can flexibly adjust and fix the position of the four vertical rods according to the different body sizes of rats, thereby improving the fixation effect on the rat's limbs. The rat's torso is clamped and fixed by the support plate and the pressure plate.

[0028] 2. This utility model utilizes a head fixing assembly consisting of a telescopic plate, a sliding rod, a mounting plate, a spring, a first hinge seat, a first hinge block, and a head clamp. The extension length of the telescopic plate can be adjusted according to the rat's body length, thereby clamping and fixing the rat's head. The spring provides cushioning to prevent the head clamp from injuring the rat's head.

[0029] 3. This utility model utilizes the combined action of the second hinge seat, connecting rod, third hinge seat, clamping plate, tension spring, upper clamping groove and lower clamping groove to clamp the tail of the rat, preventing the tail from swinging during the experiment and thus avoiding interference with the experiment. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 1 .

[0032] Figure 2 This is a schematic diagram of the front cross-sectional structure of this embodiment.

[0033] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0034] Figure 4 yes Figure 2 A magnified structural diagram of part B.

[0035] Figure 5 This is a three-dimensional structural diagram of the fixed mechanism.

[0036] Figure 6 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 2 .

[0037] In the diagram: 1. Base; 2. Slide groove; 3. Round tube one; 4. Electric telescopic rod; 5. Support plate; 6. Placement groove; 7. Lower pressure plate; 8. Through groove; 9. Adjustment groove; 10. Vertical rod; 11. Rotating seat; 12. Round tube two; 13. Shim; 14. Knob bolt; 15. Guide groove; 16. Guide block; 17. Telescopic groove; 18. Telescopic plate; 19. Slide rod; 20. Mounting plate; 21. Spring; 22. First hinge seat; 23. First hinge block; 24. Head clamping plate; 25. Conical groove; 26. Limiting plate; 27. Second hinge seat; 28. Connecting rod; 29. ​​Third hinge seat; 30. Clamping plate; 31. Upper clamping groove; 32. Tension spring; 33. Lower clamping groove; 34. Arc-shaped guide groove; 35. Annular guide block; 36. First operating hole; 37. Second operating hole. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This utility model provides a rat restraint device, including a base 1, a groove 2 on the top of the base 1, a circular tube 3 slidably installed in the groove 2, two symmetrically distributed arc-shaped guide grooves 34 on the bottom of the groove 2, two annular guide blocks 35 fixedly installed on the circular tube 3, the two annular guide blocks 35 are slidably installed in the two arc-shaped guide grooves 34 respectively, a restraint mechanism for fixing the rat is provided on the circular tube 3, a first operating hole 36 is provided on the support plate 5, and a second operating hole 37 is provided at the bottom of the circular tube 3.

[0040] The fixing mechanism includes two electric telescopic rods 4, a support plate 5, a lower pressure plate 7, limb fixing components, a head fixing component, and a tail fixing component. The two electric telescopic rods 4 are respectively fixedly installed on the top inner wall and bottom inner wall of the circular tube 3. The support plate 5 is fixedly installed on the output shaft end of the lower electric telescopic rod 4, and a placement groove 6 is opened on the top of the support plate 5. The lower pressure plate 7 is fixedly installed on the output shaft end of the upper electric telescopic rod 4, and a through groove 8 is opened on the bottom of the lower pressure plate 7. The limb fixing components are set on the support plate 5, the head fixing component is set on the left side of the lower pressure plate 7, and the tail fixing component is set on the right side of the lower pressure plate 7. The rat's torso can be clamped and fixed by the support plate 5 and the lower pressure plate 7. Specifically, the head fixing component includes a telescopic plate 18, a sliding rod 19, a mounting plate 20, a spring 21, a first hinge seat 22, a first hinge block 23, and a head. The clamping plate 24 and the lower pressure plate 7 have a telescopic groove 17 located above the through groove 8 on the left side. The telescopic plate 18 is slidably installed in the telescopic groove 17, and the left side of the telescopic plate 18 extends to the outside of the telescopic groove 17. The slide rod 19 is slidably installed on the telescopic plate 18. The mounting plate 20 is fixedly installed on the bottom end of the slide rod 19. The spring 21 is sleeved on the slide rod 19. The bottom end of the spring 21 is fixedly connected to the mounting plate 20, and the top end of the spring 21 is fixedly connected to the telescopic plate 18. By using the spring 21, a buffer can be provided to prevent the head clamping plate 24 from injuring the rat's head. The first hinge seat 22 is fixedly installed on the bottom of the mounting plate 20. The first hinge block 23 is rotatably installed on the first hinge seat 22. The head clamping plate 24 is fixedly installed on the bottom of the first hinge block 23. The bottom of the head clamping plate 24 has a conical groove 25. The top end of the slide rod 19 is fixedly installed with a limit plate 26.

[0041] Specifically, the limb fixation assembly includes four vertical rods 10, four rotating seats 11, four round tubes 12, four washers 13, and four knob bolts 14. The top of the support plate 5 has four symmetrically distributed adjustment slots 9, each with an open bottom. The four vertical rods 10 are slidably installed within the four adjustment slots 9, the four rotating seats 11 are rotatably installed on the tops of the four vertical rods 10, and the four round tubes 12 are rotatably installed on the tops of the four rotating seats 11. The four round tubes 12 can fix the rat's limbs. To effectively prevent rats from moving their paws around and injuring experimenters, four pads 13 are respectively fitted onto the four vertical rods 10 and abut against the bottom of the support plate 5. Four knob bolts 14 are respectively threaded onto the four vertical rods 10 and are in close contact with the corresponding pads 13. The movement of the vertical rods 10 can be controlled by loosening the four knob bolts 14, making the operation flexible and versatile. Guide grooves 15 are provided on both the left and right sides of the four adjustment slots 9, and guide blocks 16 are fixedly installed on both the left and right sides of the four vertical rods 10. The eight guide blocks 16 are slidably installed in the corresponding guide grooves 15.

[0042] Specifically, the tail fixing assembly includes a second hinge seat 27, a connecting rod 28, a third hinge seat 29, a clamping plate 30, and a tension spring 32. The second hinge seat 27 is fixedly installed on the right side of the lower pressure plate 7. The connecting rod 28 is rotatably installed on the second hinge seat 27. The third hinge seat 29 is fixedly installed on the end of the connecting rod 28 away from the lower pressure plate 7. The clamping plate 30 is fixedly installed at the bottom of the third hinge seat 29. An upper clamping groove 31 is provided at the bottom of the clamping plate 30. The tension spring 32 is fixedly installed on the right side of the lower pressure plate 7. The side of the tension spring 32 away from the lower pressure plate 7 is fixedly connected to the connecting rod 28. The tension spring 32 can pull the connecting rod 28 downward to rotate, thereby driving the clamping plate 30 to clamp and fix the tail of the rat. A lower clamping groove 33 is provided at the top of the support plate 5. The left side of the lower clamping groove 33 is connected to the placement groove 6.

[0043] In this embodiment, a control switch is installed on the base 1. The two electric telescopic rods 4 and the control switch are electrically connected to the external power supply line in sequence through wires to form a circuit. The control switch can control the start and stop of the two electric telescopic rods 4.

[0044] Through the above structure, the rat restraint device provided by this utility model can flexibly adjust and fix the positions of the four vertical rods 10 according to the different body sizes of the rat, thereby improving the fixation effect on the rat's limbs. The rat's torso is clamped and fixed by the support plate 5 and the lower pressure plate 7. The extension length of the telescopic plate 18 is adjusted according to the rat's body length to clamp and fix the rat's head. A spring 21 provides cushioning to prevent the head clamp 24 from injuring the rat's head. The device can also clamp the rat's tail to prevent it from swinging during the experiment and interfering with the experiment. In specific use, the rat is placed flat in the placement slot 6 of the support plate 5. According to the rat's body size, the four knob bolts 14 are loosened, and the four round tubes 12 are respectively fitted onto the rat's limbs and close to the rat's torso, so that the rat's limbs cannot be pulled out of the round tubes 12. The four knob bolts 14 are then tightened to complete the fixation of the rat's limbs. The rat is then... The rat's head and tail are aligned, with the tail placed in the lower clamping groove 33. The telescopic plate 18 is moved to the left, positioning the head clamp 24 above the rat's head. The tilt angle of the head clamp 24 is aligned with the rat's head. The two electric telescopic rods 4 are extended, pushing the support plate 5 and the lower pressure plate 7 closer together to clamp the rat's torso. Under the action of the spring 21, the head clamp 24 is tightly clamped onto the rat's head. Simultaneously, under the action of the tension spring 32, the clamping plate 30 is pressed tightly against the top of the support plate 5. Through the combined action of the upper clamping groove 31 and the lower clamping groove 33, the tail is wrapped and restrained, effectively preventing the rat's tail from swinging during the experiment. When it is necessary to examine the rat's back or perform other operations, the circular tube 3 is rotated 180 degrees, allowing operation through the first operating hole 36 and the second operating hole 37. This device greatly improves the rat's fixation effect and enhances the accuracy of the experiment.

[0045] The rat restraint device provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A rat restraint device, characterized in that, Includes a base (1), the top of which is provided with a groove (2), a round tube (3) is slidably installed in the groove (2), and a fixing mechanism for fixing the rat is provided on the round tube (3); The fixing mechanism includes two electric telescopic rods (4), a support plate (5), a lower pressure plate (7), a limb fixing assembly, a head fixing assembly, and a tail fixing assembly. The two electric telescopic rods (4) are respectively fixedly installed on the top inner wall and the bottom inner wall of the circular tube (3). The support plate (5) is fixedly installed on the output shaft end of the lower electric telescopic rod (4). The top of the support plate (5) is provided with a placement groove (6). The lower pressure plate (7) is fixedly installed on the output shaft end of the upper electric telescopic rod (4). The bottom of the lower pressure plate (7) is provided with a through groove (8). The limb fixing assembly is set on the support plate (5). The head fixing assembly is set on the left side of the lower pressure plate (7). The tail fixing assembly is set on the right side of the lower pressure plate (7). The limb fixing assembly includes four vertical rods (10), four rotating seats (11), four round tubes (12), four gaskets (13), and four knob bolts (14). The top of the support plate (5) is provided with four symmetrically distributed adjustment slots (9). The bottom of the four adjustment slots (9) is open. The four vertical rods (10) are slidably installed in the four adjustment slots (9). The four rotating seats (11) are rotatably installed on the top of the four vertical rods (10). The four round tubes (12) are rotatably installed on the top of the four rotating seats (11). The four gaskets (13) are respectively sleeved on the four vertical rods (10) and abut against the bottom of the support plate (5). The four knob bolts (14) are respectively threaded on the four vertical rods (10) and in close contact with the corresponding gaskets (13). Guide grooves (15) are provided on both the left and right sides of the four adjustment grooves (9), and guide blocks (16) are fixedly installed on both the left and right sides of the four vertical rods (10). The eight guide blocks (16) are slidably installed in the corresponding guide grooves (15). The head fixing assembly includes a telescopic plate (18), a slide rod (19), a mounting plate (20), a spring (21), a first hinge seat (22), a first hinge block (23), and a head clamp (24). The left side of the lower pressure plate (7) has a telescopic groove (17) located above the through groove (8). The telescopic plate (18) is slidably installed within the telescopic groove (17), with its left side extending outside the groove (17). The slide rod (19) is slidably installed on the telescopic plate (18), and the mounting plate (20) is fixedly installed at the bottom end of the slide rod (19). A spring (21) is sleeved on the slide rod (19). The bottom end of the spring (21) is fixedly connected to the mounting plate (20), and the top end of the spring (21) is fixedly connected to the telescopic plate (18). The first hinge seat (22) is fixedly installed on the bottom of the mounting plate (20). The first hinge block (23) is rotatably installed on the first hinge seat (22). The head clamp (24) is fixedly installed on the bottom of the first hinge block (23). A tapered groove (25) is provided at the bottom of the head clamp (24). A limit plate (26) is fixedly installed on the top end of the slide rod (19). The tail fixing assembly includes a second hinge seat (27), a connecting rod (28), a third hinge seat (29), a clamping plate (30), and a tension spring (32). The second hinge seat (27) is fixedly installed on the right side of the lower pressure plate (7). The connecting rod (28) is rotatably installed on the second hinge seat (27). The third hinge seat (29) is fixedly installed on the end of the connecting rod (28) away from the lower pressure plate (7). The clamping plate (30) is fixedly installed at the bottom of the third hinge seat (29). The bottom of the clamping plate (30) is provided with an upper clamping groove (31). The tension spring (32) is fixedly installed on the right side of the lower pressure plate (7). The side of the tension spring (32) away from the lower pressure plate (7) is fixedly connected to the connecting rod (28).

2. The rat restraint device according to claim 1, characterized in that: The support plate (5) has a lower clamping groove (33) on its top, and the left side of the lower clamping groove (33) is connected to the placement groove (6).

3. The rat restraint device according to claim 1, characterized in that: The bottom of the slide (2) has two symmetrically distributed arc-shaped guide grooves (34), and two annular guide blocks (35) are fixedly installed on the circular tube (3). The two annular guide blocks (35) are slidably installed in the two arc-shaped guide grooves (34).

4. The rat restraint device according to claim 1, characterized in that: The support plate (5) has a first operating hole (36), and the bottom of the round tube (3) has a second operating hole (37).

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