Rotating rod fatigue instrument for animal experiment

Abstract

The utility model discloses a rotating rod fatigue instrument for animal experiments, which comprises a control box, a base is fixedly arranged on one side of the control box, a rectangular block is fixedly arranged on the base, and a plurality of partition plates are arranged on the rectangular block in a sliding manner; a motor is fixedly arranged in the control box, the output end of the motor penetrates through the control box and is provided with a rotating rod, the rotating rod sequentially penetrates through the partition plates and is in running fit with the base, and limiting devices for limiting the partition plates are arranged on the partition plates. According to the size of the animal body, a worker manually pushes the partition plates to slide along the rectangular blocks so as to adjust the distance between the partition plates, then the partition plates are limited and fixed by tightening the bolts and enabling one ends of the bolts to abut against the rectangular blocks, experimental work can be conveniently conducted on animals of different body types, and therefore the practicability of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of animal experiments, and specifically relates to a rotarod fatigue tester for animal experiments. Background Technique

[0002] The rotarod fatigue tester can be used for fatigue experiments, skeletal muscle relaxation experiments, central nervous inhibition experiments, and other experiments that need to detect the effects of drugs by means of exercise, such as the effects of toxicity on exercise ability, the effects of lack of certain substances in the body on exercise ability, the effects of cardiovascular and cerebrovascular drugs on exercise ability, etc. The basic principles and basic functions of this instrument can be developed and utilized in multiple directions.

[0003] A small animal rotarod fatigue tester is disclosed in a Chinese patent document with the publication number CN216314757U, which includes a base of the rotarod fatigue tester. At each of the transverse two ends of the base, there is a support arm. A rotarod is horizontally rotatably connected to the two support arms together. The rotarod is driven to rotate by an external motor. A plurality of turntables are arranged on the rotarod. The turntables are located between the two support arms. A cross plate is fixedly connected to the upper ends of the two support arms. A floating rod is vertically slidably penetrated through the cross plate. A floating plate is connected to the lower end of the floating rod. A plurality of connecting rods are arranged on the floating plate. A cleaning block is arranged at the lower end of the connecting rod. The cleaning block is located between two adjacent turntables. The floating rod is driven to move up and down by a lifting assembly, so that the cleaning block contacts the periphery of the rotarod. By moving the floating rod downward, the cleaning block contacts the surface of the rotarod. As the rotarod rotates, the cleaning block can uniformly clean the surface of the rotarod.

[0004] The deficiency of the above disclosed solution is that: since the distance between adjacent turntables is fixed, animals of different body sizes cannot be experimented, resulting in inconvenience to the experimental work. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a rotarod fatigue tester for animal experiments. By sliding the partition plates, the distance between the partition plates can be adjusted, and the limiting device limits the partition plates, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rotarod fatigue tester for animal experiments, including a control box. One side of the control box is fixedly provided with a base. A rectangular block is fixedly provided on the base. A plurality of partition plates are slidably arranged on the rectangular block. A motor is fixedly arranged in the control box. The output end of the motor passes through the control box and is provided with a rotarod. The rotarod sequentially passes through a plurality of partition plates and is rotationally matched with the base. A limiting device for limiting the partition plates is arranged on the partition plates.

[0007] Further, the limiting device is a bolt, which is threadedly connected to the partition board. The bolt passes through the partition board and abuts against the rectangular block to limit the partition board.

[0008] Further, a circular hole is provided on the partition board, and the rotating rod passes through the circular hole on the partition board. An annular brush is fixedly arranged in the circular hole, and the annular brush fits with the rotating rod.

[0009] Further, a spline is fixedly arranged at the output end of the motor, and a key groove adapted to the spline is provided on the rotating rod. The spline and the key groove are slidably fitted and installed, and a through hole allowing the rotating rod to be drawn out is provided on one side of the base.

[0010] Further, a baffle is slidably arranged on one side of the base to prevent the rotating rod from sliding outwards.

[0011] Further, a rectangular groove is provided on the rectangular block.

[0012] Further, a PLC control panel is fixedly arranged on the control box, and the PLC control panel is electrically connected to the motor.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Since a plurality of partition boards are slidably arranged on the rectangular block, and a limiting device for limiting the partition boards is arranged on the partition boards. Therefore, according to the size of the animal body, the staff manually pushes the partition board to slide along the rectangular block, thereby adjusting the distance between the partition boards, and then by tightening the bolt, one end of the bolt abuts against the rectangular block to limit and fix the partition board. It is convenient to conduct experiments on animals of different body sizes, thereby improving the practicability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the structure of the present utility model;

[0016] Figure 2 is a sectional view of the structure of the present utility model;

[0017] Figure 3 is a perspective view of the partition board of the structure of the present utility model;

[0018] Figure 4 is an exploded view of the spline and the rotating rod of the structure of the present utility model.

[0019] In the figure: 1, control box; 2, PLC control panel; 3, base; 4, motor; 5, rotating rod; 6, partition board; 7, annular brush; 8, rectangular block; 9, rectangular groove; 10, bolt; 11, baffle; 12, spline; 13, key groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a rotating rod fatigue tester for animal experiments, including a control box 1. One side of the control box 1 is fixedly provided with a base 3. The base 3 includes a bottom plate, the bottom plate is rectangular, and an "L" - shaped plate is integrally formed on the top of the bottom plate to prevent animals from being interfered by the outside. Along the length direction of the top of the bottom plate of the base 3, a rectangular block 8 is fixedly provided, and a plurality of partition plates 6 are slidably arranged on the rectangular block 8.

[0022] An avoidance groove is opened at the bottom of the partition plate 6, and the avoidance groove is slidably connected with the rectangular block 8. A motor 4 is fixedly arranged in the control box 1. The output end of the motor 4 passes through the control box 1 and is fixedly provided with a spline 12. A rotating rod 5 is slidably arranged on the spline 12. One end of the rotating rod 5 is provided with a key groove 13 adapted to the spline 12 along its length direction. The spline 12 is inserted into the key groove 13 and is slidably fitted with the key groove 13, so that the motor 4 can not only drive the rotating rod 5 to rotate, but also the rotating rod 5 can be detached from the spline 12.

[0023] A through - hole allowing the rotating rod 5 to be drawn out is opened on one side of the base 3. The rotating rod 5 can not only rotate in the through - hole, but also the rotating rod 5 can slide outwards through the through - hole. A baffle 11 is slidably arranged on one side of the base 3. The baffle 11 is vertically arranged to block the rotating rod 5 from sliding outwards, thereby preventing the spline 12 from disengaging from the key groove 13 and maintaining the stability of the connection between the motor 4 and the rotating rod 5.

[0024] The rotating rod 5 sequentially passes through a plurality of partition plates 6 and is rotatably fitted with the base 3. Round holes are opened on the partition plates 6. The rotating rod 5 passes through the round holes on the partition plates 6, and an annular brush 7 is fixedly arranged in the round holes. The annular brush 7 is in contact with the rotating rod 5. When the rotating rod 5 slides along the annular brush 7, the annular brush 7 can clean the stains on the surface of the rotating rod 5.

[0025] A rectangular groove 9 is opened on the rectangular block 8. When an animal falls from the rotating rod 5, it will fall into the rectangular groove 9 to prevent the animal from escaping.

[0026] A limiting device for limiting the partition plate 6 is arranged at the bottom of the partition plate 6. The limiting device is a bolt 10. The bolt 10 is threadedly connected to the partition plate 6. The bolt 10 passes through the partition plate 6 and is in abutting fit with the rectangular block 8. Using the friction force between the bolt 10 and the rectangular block 8, the partition plate 6 is limited.

[0027] In another embodiment, the limiting device is a limiting post. A plurality of limiting holes are evenly formed in the rectangular block 8 along its length direction. The limiting post slidably penetrates through the bottom of the partition plate 6 and cooperates with the limiting holes on the rectangular block 8 to limit the partition plate 6. After adjusting the distance between the partition plates 6, the limiting posts on the partition plates 6 can be inserted into the corresponding limiting holes.

[0028] A PLC control panel 2 is fixedly arranged on the control box 1, and the PLC control panel 2 is electrically connected to the motor 4. The rotation speed of the motor 4 can be adjusted through the PLC control panel 2, so as to adjust the rotation speed of the rotating rod 5 according to the needs of the experiment.

[0029] The working principle of a rotating rod fatigue tester for animal experiments provided by the present utility model is as follows:

[0030] During use, when it is necessary to replace the rotating rod 5 according to the size of the animal, pull up the baffle 11 to make the baffle 11 no longer block the rotating rod 5, and then hold the rotating rod 5 and move it to the right to make the keyway 13 on the rotating rod 5 disengage from the spline 12, so as to pull out the rotating rod 5 along the through hole on the right side of the base 3, and then connect the new rotating rod 5 to the spline 12. Thus, the staff can replace the rotating rods 5 of different models, that is, the rotating rods 5 with different diameters, improve the adaptability of the animals, and thus avoid affecting the accuracy of the test animals.

[0031] When it is necessary to change the distance between adjacent partition plates 6 according to the size of the animal, the staff manually push the partition plates 6 to slide along the rectangular block 8, so as to adjust the distance between the partition plates 6, and then tighten the bolts 10 to make one end of the bolts 10 abut against the rectangular block 8 to limit and fix the partition plates 6.

[0032] Place the animal on the rotating rod 5, set the rotation speed of the motor 4 through the PLC control panel 2, and then start the motor 4. The motor 4 drives the rotating rod 5 to rotate, so that the animal runs on the rotating rod 5, thereby testing the fatigue strength of the animal.

[0033] After the experiment is completed, since the animal is in contact with the surface of the rotating rod 5, over time, stains are generated on the surface of the rotating rod 5, so it is necessary to clean the surface of the rotating rod 5. When cleaning the stains on the rotating rod 5, loosen the bolts 10 to release the fixation of the partition plates 6, and then the staff push the partition plates 6 to move to one side along the rotating rod 5. The partition plates 6 drive the annular brush 7 to clean the stains on the rotating rod 5 to prevent the stains on the rotating rod 5 from affecting the test results of the animals. During the process of disassembling the rotating rod 5, the annular brush 7 can also clean the stains on the surface of the rotating rod 5.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rotarod fatigue tester for animal experiments, comprising a control box (1), characterized in that: One side of the control box (1) is fixedly provided with a base (3). A rectangular block (8) is fixedly arranged on the base (3), and a plurality of partition plates (6) are slidably arranged on the rectangular block (8). A motor (4) is fixedly arranged in the control box (1). The output end of the motor (4) passes through the control box (1) and is provided with a rotating rod (5). The rotating rod (5) sequentially passes through a plurality of partition plates (6) and is rotationally matched with the base (3). A limiting device for limiting the partition plates (6) is arranged on the partition plates (6).

2. The rotarod fatigue tester for animal experiments according to claim 1, characterized in that: The limiting device is a bolt (10). The bolt (10) is threadedly connected to the partition plate (6). The bolt (10) passes through the partition plate (6) and is in abutting fit with the rectangular block (8) to limit the partition plate (6).

3. The rotarod fatigue tester for animal experiments according to claim 1, characterized in that: A round hole is formed in the partition plate (6). The rotating rod (5) passes through the round hole in the partition plate (6). An annular brush (7) is fixedly arranged in the round hole, and the annular brush (7) is in fit with the rotating rod (5).

4. The rotarod fatigue tester for animal experiments according to claim 1, characterized in that: A spline (12) is fixedly arranged at the output end of the motor (4). A key groove (13) adapted to the spline (12) is formed in the rotating rod (5). The spline (12) is slidably fitted and installed with the key groove (13). A through hole allowing the rotating rod (5) to be drawn out is formed on one side of the base (3).

5. The rotarod fatigue tester for animal experiments according to claim 4, characterized in that: A baffle (11) is slidably arranged on one side of the base (3) for blocking the rotating rod (5) from sliding outwards.

6. The rotarod fatigue tester for animal experiments according to claim 1, wherein: A rectangular groove (9) is formed in the rectangular block (8).

7. The rotarod fatigue tester for animal experiments according to claim 1, characterized in that: A PLC control panel (2) is fixedly arranged on the control box (1). The PLC control panel (2) is electrically connected to the motor (4).

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