Rotating rod fatigue instrument for animal experiment

Abstract

The utility model relates to the technical field of fatigue instruments, and discloses a rotating rod fatigue instrument for animal experiments, which comprises a base, a control cabinet and a plurality of vertical plates are respectively and fixedly arranged on the surface of the base, a back plate is fixedly arranged on the back surface of each vertical plate, an experiment cavity is formed between two adjacent vertical plates, and the control cabinet and the vertical plates are fixedly arranged on the base. The inner wall of the experiment chamber is rotationally connected with a rotating rod body, and an independent transmission assembly is arranged between the base and the rotating rod body. By arranging the independent transmission assembly, after an experimental animal falls off due to fatigue, the hydraulic rod is controlled by the control cabinet to stretch out and draw back, the telescopic plate and the transmission rod can be driven to move, the transmission effect of the transmission rod on the transverse shaft and the rotating rod body is canceled, the rotating rod body in the corresponding experimental chamber stops rotating, and under the condition that the rotating rod body stops, the rotating rod is driven to rotate. It can be ensured that experimenters safely take out experimental animals from the interiors of the corresponding experimental cavities, the situation that the experimenters are dangerous is avoided, and the safety in the experimental process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue instruments, and more particularly to a rotating rod fatigue instrument for animal experiments. Background Art

[0002] The rotarod test apparatus provides a convenient method for detecting the motor function of rodents. The effects of central nervous system diseases or damage, as well as drugs on motor coordination and fatigue, can be determined by measuring the duration of the animal's walking on the roller. The instrument can be used for fatigue experiments, skeletal muscle relaxation experiments, central nervous system inhibition experiments, and other experiments that require the use of exercise to detect drug effects.

[0003] In order to ensure the efficiency of the experiment, the existing rotating rod fatigue instrument sets up multiple detection areas on the surface of the same rotating rod, and conducts animal fatigue experiments simultaneously in multiple detection areas. With this experimental method, during the experiment, when an animal in a certain experimental area falls from the surface of the rotating rod, in order to ensure the safety of the animal and to check the animal's body, the animal needs to be taken out of the experimental area in time. When taking it out, since the experiment has not been completely stopped, the rotating rod is still in a rotating state. The experimenter takes out the experimental animal while the rotating rod is rotating, which poses a certain risk to the safety of both the experimental animal and the experimenter.

[0004] In view of this, the utility model proposes a rotating rod fatigue instrument for animal experiments with high safety to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rotating rod fatigue apparatus for animal experiments to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a rotating rod fatigue instrument for animal experiments, comprising a base, a control cabinet and vertical plates fixedly mounted on the surface of the base, the number of vertical plates being several, a back plate fixedly mounted on the back of the vertical plates, an experimental chamber formed between two adjacent vertical plates, a rotating rod body rotatably connected to the inner wall of the experimental chamber, and an independent transmission component provided between the base and the rotating rod body;

[0007] The independent transmission assembly includes a horizontal and vertical cavity opened inside the base, a horizontal shaft is rotatably connected inside the horizontal and vertical cavity, and several first bevel gears are fixedly installed on the surface of the horizontal shaft. A transmission cavity is opened inside the vertical plate on the right side of the experimental chamber, and the second bevel gear is fixedly installed on the inner wall of the transmission cavity of the rotating rod body, and a hydraulic rod is embedded in the front of the vertical plate. The telescopic end of the hydraulic rod extends to the interior of the transmission cavity and is fixedly installed with a telescopic plate. The surface of the telescopic plate is rotatably connected with the transmission rod, and the upper and lower ends of the transmission rod are fixedly installed with third bevel gears, and the third bevel gears at the upper and lower ends of the transmission rod are respectively meshed with the second bevel gear and the first bevel gear.

[0008] Furthermore, a servo motor is fixedly mounted on the right end of the base, and an output shaft of the servo motor is fixed to the right end of the horizontal axis.

[0009] Furthermore, a limiting slide bar is fixedly installed on the surface of the telescopic plate, and the limiting slide bar is slidably connected to the vertical plate; by providing the limiting slide bar, the moving path of the telescopic plate can be restricted, thereby improving the stability of the movement of the telescopic plate.

[0010] Furthermore, a fall detection assembly is provided on the upper surface of the base directly below the rotating rod body, and the fall detection assembly is electrically connected to the hydraulic rod through the control cabinet.

[0011] Furthermore, the fall detection component includes a lifting groove provided on the surface of the base, a detection plate being movably installed on the inner wall of the lifting groove, and elastic springs and electrode columns being fixedly installed on the inner bottom wall of the lifting groove. When the experimental animal falls onto the surface of the detection plate and causes the detection plate to move downward, the detection plate presses the elastic spring downward to make it contact with the electrode column; when the experimental animal falls, the animal presses the detection plate downward to make the elastic spring contact with the electrode column, and the signal is transmitted to the control cabinet, which can record the experimental time in time, and the experimental time data is recorded accurately, and can timely control the contraction of the hydraulic rod to cancel the rotation effect of the rotating rod body in the corresponding position. The response is fast, and there is no need to manually control the extension and retraction of the hydraulic rod, which is convenient to use.

[0012] Furthermore, a reset spring is fixedly installed on the inner bottom wall of the lifting groove, the top of the reset spring is fixed to the bottom end of the detection plate, and the elastic force of the reset spring is slightly greater than the weight of the detection plate; the elastic force of the reset spring can be used to elastically support the detection plate, so that the elastic spring is away from the electrode column.

[0013] Furthermore, a warning light is fixedly installed on the surface of the back panel, and the warning light is electrically connected to the control cabinet; by setting the warning light, the location of the experimental chamber where the fatigue experiment is to end can be accurately prompted to the experimenter, making it convenient for the staff to quickly retrieve the experimental animals.

[0014] The technical effects and advantages of this utility model are:

[0015] 1. The utility model places the experimental animal on the surface of the rotating rod body, and drives the rotating rod body to rotate by a servo motor to complete the fatigue experiment. After the experimental animal falls due to fatigue, the hydraulic rod is controlled to extend and retract by the control cabinet, which can drive the telescopic plate and the transmission rod to move, cancel the transmission effect of the transmission rod on the horizontal axis and the rotating rod body, and stop the rotating rod body inside the corresponding experimental chamber. When the rotating rod body stops, it can ensure that the experimental personnel can safely take the experimental animal out of the corresponding experimental chamber, avoid danger to the experimental personnel, and ensure safety during the experiment.

[0016] 2. The utility model is provided with a fall detection component. When the experimental animal falls, the animal presses the detection plate downward, so that the elastic spring contacts the electrode column, and the signal is transmitted to the control cabinet, so that the experimental time can be recorded in time. The experimental time data is recorded accurately, and the hydraulic rod can be controlled to retract in time to cancel the rotation effect of the rotating rod body at the corresponding position. The response is rapid, and there is no need for manual control of the extension and retraction of the hydraulic rod, which is convenient to use. By providing a reset spring, the elastic force of the reset spring can be used to elastically support the detection plate, so that the elastic spring is away from the electrode column. By providing a warning light, the experimental personnel can be accurately prompted to the location of the experimental chamber where the fatigue experiment is to be ended, so that the staff can quickly recover the experimental animals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-section structure of the vertical plate of the utility model;

[0019] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 It is a schematic diagram of the side sectional structure of the vertical plate of the present utility model.

[0021] The accompanying drawings are marked as follows: 1. Base; 2. Control cabinet; 3. Vertical plate; 4. Back plate; 5. Experimental chamber; 6. Rotating rod body; 7. Horizontal and vertical chambers; 8. Horizontal axis; 9. Transmission chamber; 10. Hydraulic rod; 11. Telescopic plate; 12. Transmission rod; 13. Servo motor; 14. Limiting slide bar; 15. Lifting slot; 16. Detection plate; 17. Elastic spring; 18. Electrode column; 19. Reset spring; 20. Warning light. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The rotating rod fatigue instrument for animal experiments involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Reference Figure 1-4 The utility model provides a rotating rod fatigue instrument for animal experiments, including a base 1, a control cabinet 2 and a vertical plate 3 are fixedly installed on the surface of the base 1, and the number of the vertical plates 3 is several. A back plate 4 is fixedly installed on the back of the vertical plate 3, and an experimental chamber 5 is formed between two adjacent vertical plates 3. The inner wall of the experimental chamber 5 is rotatably connected to a rotating rod body 6, and an independent transmission component is arranged between the base 1 and the rotating rod body 6.

[0024] The independent transmission assembly includes a transverse and vertical cavity 7 opened inside the base 1, and a transverse shaft 8 is rotatably connected inside the transverse and vertical cavity 7. A servo motor 13 is fixedly installed on the right end of the base 1, and the output shaft of the servo motor 13 is fixed to the right end of the transverse shaft 8.

[0025] Several first bevel gears are fixedly installed on the surface of the horizontal axis 8. A transmission chamber 9 is opened inside the vertical plate 3 on the right side of the experimental chamber 5. The second bevel gear is fixedly installed on the inner wall of the transmission chamber 9 of the rotating rod body 6, and a hydraulic rod 10 is embedded in the front of the vertical plate 3. The telescopic end of the hydraulic rod 10 extends to the interior of the transmission chamber 9 and is fixedly installed with a telescopic plate 11. The surface of the telescopic plate 11 is rotatably connected to the transmission rod 12. The upper and lower ends of the transmission rod 12 are fixedly installed with third bevel gears. The third bevel gears at the upper and lower ends of the transmission rod 12 are respectively engaged with the second bevel gear and the first bevel gear.

[0026] When the present invention is in use, the entire device is connected to an external power control system in advance, and then the experimental animal is placed on the surface of the rotating rod body 6. The control cabinet 2 is used to control the hydraulic rod 10 to be in an extended state, and the transmission rod 12 is used to transmit power between the rotating rod body 6 and the horizontal axis 8. By starting the servo motor 13 to drive the rotating rod body 6 to rotate, the experimental animal crawls on the surface of the rotating rod body 6 to complete the fatigue experiment.

[0027] During the experiment, when the experimental animal falls from the surface of the rotating rod body 6 due to fatigue, the staff controls the extension and retraction of the hydraulic rod 10 through the control cabinet 2, which can drive the telescopic plate 11 and the transmission rod 12 to move, canceling the transmission effect of the transmission rod 12 on the horizontal axis 8 and the rotating rod body 6, so that the rotating rod body 6 inside the corresponding experimental chamber 5 stops rotating. When the rotating rod body 6 stops, it can ensure that the experimental personnel can safely take the experimental animal out of the corresponding experimental chamber 5, avoid danger to the experimental personnel, and ensure safety during the experiment.

[0028] A limiting slide bar 14 is fixedly mounted on the surface of the telescopic plate 11 , and the limiting slide bar 14 is slidably connected to the vertical plate 3 .

[0029] By providing the limiting sliding rod 14 , the moving path of the telescopic plate 11 can be restricted, thereby improving the stability of the movement of the telescopic plate 11 .

[0030] In this embodiment, a fall detection assembly is provided on the upper surface of the base 1 just below the rotating rod body 6 , and the fall detection assembly is electrically connected to the hydraulic rod 10 through the control cabinet 2 .

[0031] The fall detection assembly in this embodiment includes a lifting groove 15 provided on the surface of the base 1 , and a detection plate 16 is movably mounted on the inner wall of the lifting groove 15 .

[0032] The inner bottom wall of the lifting groove 15 is fixedly mounted with an elastic spring 17 and an electrode column 18. When the experimental animal falls onto the surface of the detection plate 16 and causes the detection plate 16 to move downward, the detection plate 16 presses the elastic spring 17 downward to make it contact with the electrode column 18.

[0033] A return spring 19 is fixedly mounted on the inner bottom wall of the lifting slot 15 . The top end of the return spring 19 is fixed to the bottom end of the detection plate 16 . The elastic force of the return spring 19 is slightly greater than the weight of the detection plate 16 .

[0034] By providing the return spring 19 , the detection plate 16 can be elastically supported by utilizing the elastic force of the return spring 19 , so that the elastic spring 17 is kept away from the electrode column 18 .

[0035] By setting up a fall detection component, when the experimental animal falls, the animal presses the detection plate 16 downward, causing the elastic spring 17 to contact the electrode column 18, and the signal is transmitted to the control cabinet 2, so that the experimental time can be recorded in time. The experimental time data is recorded accurately, and the hydraulic rod 10 can be controlled to retract in time to cancel the rotation effect of the rotating rod body 6 at the corresponding position. The response is rapid, and there is no need to manually control the extension and retraction of the hydraulic rod 10, which is convenient to use.

[0036] A warning light 20 is fixedly mounted on the surface of the back plate 4 , and the warning light 20 is electrically connected to the control cabinet 2 .

[0037] It is worth noting that when the fall detection component is triggered, by setting a warning light 20, the experimenter can be accurately prompted to the location of the experimental chamber 5 where the fatigue experiment is to be ended, so that the staff can quickly retrieve the experimental animals.

[0038] Finally, it should be noted that the drawings of the disclosed embodiments of the present invention only involve structures related to the disclosed embodiments. Other structures can refer to general designs. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A rotating rod fatigue instrument for animal experiments, comprising a base (1), characterized in that: The surface of the base (1) is fixedly mounted with a control cabinet (2) and a vertical plate (3), the number of the vertical plates (3) is several, a back plate (4) is fixedly mounted on the back of the vertical plates (3), an experimental chamber (5) is formed between two adjacent vertical plates (3), the inner wall of the experimental chamber (5) is rotatably connected to a rotating rod body (6), and an independent transmission component is provided between the base (1) and the rotating rod body (6); The independent transmission assembly comprises a transverse and vertical cavity (7) provided inside the base (1), a transverse shaft (8) being rotatably connected inside the transverse and vertical cavity (7), a plurality of first bevel gears being fixedly mounted on the surface of the transverse shaft (8), a transmission cavity (9) being provided inside the vertical plate (3) on the right side of the experimental chamber (5), the transmission cavity being communicated with the transverse and vertical cavity, a second bevel gear being fixedly mounted on the inner wall of the transmission cavity (9) on the rotating rod body (6), and a hydraulic rod (10) being embedded on the front surface of the vertical plate (3), a telescopic end of the hydraulic rod (10) extending into the interior of the transmission cavity (9) and being fixedly mounted with a telescopic plate (11), a transmission rod (12) being rotatably connected on the surface of the telescopic plate (11), a third bevel gear being fixedly mounted on the upper and lower ends of the transmission rod (12), and the third bevel gears at the upper and lower ends of the transmission rod (12) being meshed with the second bevel gear and the first bevel gear respectively.

2. The rotarod fatigue apparatus for animal experiments according to claim 1, characterized in that: A servo motor (13) is fixedly mounted on the right end of the base (1), and an output shaft of the servo motor (13) is fixed to the right end of the horizontal shaft (8).

3. The rotarod fatigue apparatus for animal experiments according to claim 1, characterized in that: A limiting slide bar (14) is fixedly mounted on the surface of the telescopic plate (11), and the limiting slide bar (14) is slidably connected to the vertical plate (3).

4. The rotarod fatigue apparatus for animal experiments according to claim 1, characterized in that: A fall detection assembly is provided on the upper surface of the base (1) just below the rotating rod body (6), and the fall detection assembly is electrically connected to the hydraulic rod (10) through the control cabinet (2).

5. The rotarod fatigue apparatus for animal experiments according to claim 4, characterized in that: The fall detection assembly comprises a lifting groove (15) provided on the surface of the base (1); a detection plate (16) is movably mounted on the inner wall of the lifting groove (15); and an elastic spring (17) and an electrode column (18) are fixedly mounted on the inner bottom wall of the lifting groove (15). When the experimental animal falls onto the surface of the detection plate (16), causing the detection plate (16) to move downward, the detection plate (16) presses the elastic spring (17) downward to make it contact with the electrode column (18).

6. The rotarod fatigue apparatus for animal experiments according to claim 5, characterized in that: A reset spring (19) is fixedly mounted on the inner bottom wall of the lifting slot (15), the top end of the reset spring (19) is fixed to the bottom end of the detection plate (16), and the elastic force of the reset spring (19) is slightly greater than the weight of the detection plate (16).

7. The rotarod fatigue apparatus for animal experiments according to claim 1, characterized in that: A warning light (20) is fixedly mounted on the surface of the back plate (4), and the warning light (20) is electrically connected to the control cabinet (2).

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