CN218417941U

CN218417941U - Mouse rope suspension test device

Info

Publication number: CN218417941U
Application number: CN202222895597.3U
Authority: CN
Inventors: 段维霞; 许商成; 周洁; 杨应丽; 刘聪; 段郁; 余沁; 王维; 赵万江; 李媛媛; 孙亚培; 田嘉成; 夏智芹
Original assignee: First Affiliated Hospital Of Chongqing Medical College
Current assignee: First Affiliated Hospital Of Chongqing Medical College
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-02-03
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a mouse rope suspends test device in midair, including test platform, be separated by on test platform's the top surface and be fixed with the spacing pipe of vertical setting, spacing pipe upper end inserts spacing slide bar, it is fixed with the both ends of hanging in midair the pole respectively to be provided with the suspension pole between the upper end of two spacing slide bars, the top of suspension pole is equipped with the slip ring, the slip ring passes through the connecting rod and is fixed with two spacing slide bars, still be fixed with timing device and free bearing on the test platform, it has the dwang to articulate on the free bearing, the slip ring is passed to the one end of dwang, the top of the other end is provided with the stopper, be fixed with the bracing piece fixed with the stopper on the test platform, install the starting switch that can make timing device open on the stopper bottom surface, starting switch has starting button, when hanging in midair pole downward movement, can make the operating end of dwang upwards rotate to contact with starting timing device through the slip ring pulling.

Description

Mouse rope suspension test device

Technical Field

The utility model relates to a biological test device, concretely relates to mouse rope suspends test device in midair.

Background

The rope suspension test aims at detecting the four-limb movement coordination capacity of the mouse, is used for evaluating brain injury, neuromotor behavior dysfunction, neurotoxicity and the like, is widely applied to animal models of intracranial hemorrhage, stroke and Parkinson disease and animal models of neurotoxicity of harmful substances, and is established earlier by foreign scholars. The specific test method comprises the following steps: the mouse catches the rod with two hanging forelimbs, the timing is 30s for observation, and the scoring rule is as follows according to the mouse performance score: 0 min, falling; 1 minute, 2 feet hold the stick; 2. 2, the front foot catches the rod and tries to climb on the rod; the stick is grabbed by 3 minutes, 2 front feet and 1 or 2 rear feet; 4. the four claws grasp the rod, and the tail is wound on the rod; 5 min, escape to the support. However, in the test process, an operator needs to hold the mouse with one hand and make the forelimb of the mouse hold the stick, the other hand needs to operate the timing device, and when the operator is ready to start timing, the operator needs to keep staring at the mouse all the time to ensure that the mouse can press the timing device when holding the stick. Because the gripping action of the mouse is not controllable, in the process that the mouse grips the rod and an operator presses down the timing device, human factors caused by different human reactions have a certain time difference, and different researchers have certain cognitive deviation in result interpretation, so that the accuracy of test results is influenced.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a convenient to use, improve experimental accuracy's mouse rope and suspend test device in midair.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a mouse rope suspension test device comprises a test platform, wherein limit guide pipes are arranged on the top surface of the test platform at intervals along the horizontal direction, the limit guide pipes are vertically arranged, the lower ends of the limit guide pipes are fixedly connected to the top surface of the test platform, limit slide rods are arranged on the limit guide pipes, the lower ends of the limit slide rods extend into the limit guide pipes through upper end pipe orifices of the limit guide pipes, the length of each limit slide rod is smaller than that of each limit guide pipe, the limit slide rods can be in sliding fit with the limit guide pipes along the central line direction of the limit guide pipes, suspension rods for carrying out suspension tests on mice to be tested are arranged between the two limit slide rods, the two ends of each suspension rod are respectively and fixedly connected to the upper ends of the two limit slide rods, sliding rings are arranged above the suspension rods, and connecting rods respectively and fixedly connected to the upper ends of the two limit slide rods are fixedly connected to the sliding rings, the top surface of the test platform is fixedly connected with a hinged support at one side of the two limiting guide pipes, the hinged support is provided with a rotating rod, the rotating rod is hinged and connected with the hinged support along the middle position of the length direction of the rotating rod to form a lever structure, the rotating plane of the central line of the rotating rod is vertical to the plane of the test platform, one end of the rotating rod is a suspension end, the other end of the rotating rod is an operation end, the suspension end of the rotating rod penetrates through a sliding ring, the inner diameter of the sliding ring is larger than the diameter of the rotating rod, when the suspension rod moves downwards, the suspension rod can pull the suspension end of the rotating rod to rotate downwards through the sliding ring, a limiting block is arranged above the operation end of the rotating rod, the top surface of the test platform is fixedly connected with a supporting rod fixedly connected with the limiting block, when the suspension end of the rotating rod rotates downwards, the operation end of the rotating rod can be abutted against the bottom surface of the limiting block, when the operation end of the rotating rod is abutted against the limiting block, the upper end of suspension pole and spacing slide tube is separated by, still installs timing device on test platform's the top surface, the last display screen that can show timing time that is provided with of timing device, install the starting switch that can control timing device and open on the bottom surface of stopper, starting switch has the start button on one side towards experiment platform, when the operation end of dwang rotated towards stopper place direction, the operation end of dwang can contradict in order to open timing device on the start button. This application utilizes lever principle, only when the mouse is firm to hanging in midair the pole gripping, the operator releases the hand and snatchs to the mouse, the pole that hangs like this under the effect of mouse gravity, the end that suspends in midair through the slip ring pulling dwang rotates downwards, and then make the operation end of dwang upwards rotate, make the operation end of dwang contradict on start button, start switch just can open timing device like this, the display screen begins to show the timing time, just so can reduce the influence that human error brought the experiment, the accuracy of experiment has been improved.

Further, the operation end of dwang is served and is corresponded starting switch's position fixedly connected with operation touch piece, works as the operation end orientation of dwang when stopper place direction rotates, operation touch piece can contradict on the start button, the position that just is located starting switch on the bottom surface of stopper is equipped with the annular ring along vertical direction is concave, and start switch is located the inboard of annular ring, and the same central line in annular ring department is provided with the spring, and the one end of spring stretches into in the annular ring and the card is fixed at annular ring Kong Deshang, and the other end of spring is connected on the operation end of dwang, operation touch piece object is located the inboard of spring, and the spring can make operation touch piece and start button be separated from when not experimenting and set up, when the examination mouse suspends in midair on the suspension pole, the operation end of dwang can extrude so that operation touch piece contradicts on the start button. The convenience of further using improves, because the gravity of hanging in midair pole and spacing slide bar itself can make the end of hanging in midair of dwang rotate downwards, in order to avoid operation touch piece to contact with start button before experimental, sets up the spring and separates it, and when the mouse hung, the gravity of mouse can compress the spring again for operation touch piece contacts with start button, and it is more convenient to use.

Further, the pole body of limit slide and be close to in its upper end position arch be formed with around limit slide circumference sets up the bulge loop, ring cover under the both ends difference fixedly connected with of suspension pole, lower ring cover establish corresponding limit slide just is located the pole body of bulge loop top, and the one end fixedly connected with of slide ring is kept away from to the connecting rod goes up the ring cover, goes up the ring cover and establishes corresponding limit slide just is located one side pole body that the ring cover was back to the bulge loop down, limit slide is located the pole body that the ring cover was back to one side of the bulge loop and goes up screw-thread fit and has and be used for supporting last ring cover and lower ring cover tightly gland nut on the bulge loop.

Furthermore, the top surface of the test platform corresponds the position of the limiting sleeve is concavely provided with a connecting screw hole along the vertical direction, the connecting screw hole is provided with a connecting stud, the length of the connecting stud is greater than the depth of the connecting screw hole, the lower end of the connecting stud is in threaded fit in the connecting screw hole and abutted against the connecting screw hole Kong Deshang, the lower end pipe hole of the limiting sleeve is provided with a connecting thread, the lower end of the limiting sleeve is in threaded connection with a column body, located outside the connecting screw hole, of the connecting stud through the connecting thread, and the lower end of the limiting sleeve is abutted against the top surface of the test platform.

Further, on the top surface of test platform and the position fixedly connected with photography support that is located suspension rod one side, install on the photography support and can be right the examination mouse that awaits measuring that hangs on the suspension rod carries out the camera device of making a video recording, still install image processing system on test platform's the top surface, camera device is connected with image processing system electricity, timing device is connected with image processing system electricity, and when timing device reachd the timing end, image processing system can acquire under the current time the test image of mouse on the suspension rod, and image processing system can handle the test image who acquires and draw the experimental result. When the timing time end point is reached, the image processing system automatically acquires the condition image of the current mouse test, analyzes the image state and comprises the following steps according to a grading rule: 0 min, falling; 1 minute, 2 feet grasp the rod; 2 minutes, 2 feet grab the stick and try to climb on the stick; the rod is grasped by 3 minutes, 2 front feet and 1 or 2 rear feet; 4 minutes, the four claws grasp the rod, and the tail is wound on the rod; and 5, escaping to the support, and outputting a result to inform an operator after a conclusion is made.

To sum up, the beneficial effects of the utility model reside in that: the utility model discloses simple structure, convenient to use can time when the mouse suspends in midair to the automatic output result has improved experimental accuracy.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the spring mounting structure of the present invention;

fig. 3 is an installation schematic view of the middle suspension rod of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the mouse rope suspension test device in this embodiment includes a test platform 1, a spacing guide tube 2 is disposed on a top surface of the test platform 1 at intervals along a horizontal direction, the spacing guide tube 2 is vertically disposed and a lower end thereof is fixedly connected to the top surface of the test platform 1, a spacing slide bar 3 is disposed on the spacing guide tube 2, a lower end of the spacing slide bar 3 extends into the spacing guide tube 2 through an upper end pipe orifice of the spacing guide tube 2, a length of the spacing slide bar 3 is smaller than a length of the spacing guide tube 2, the spacing slide bar 3 can be in sliding fit with the spacing guide tube 2 along a central line direction of the spacing guide tube 2, a suspension rod 4 for performing a suspension test on a mouse to be tested is disposed between the two spacing slide bars 3, two ends of the suspension rod 4 are respectively fixedly connected to upper ends of the two spacing slide bars 3, a sliding ring 5 is disposed above the suspension rod 4, the sliding ring 5 is fixedly connected with connecting rods 6 respectively fixedly connected with the upper ends of the two limiting slide rods 3, the top surface of the test platform 1 and the position at one side of the two limiting guide pipes 2 are fixedly connected with a hinged support 7, the hinged support 7 is provided with a rotating rod 8, the rotating rod 8 is hinged and connected on the hinged support 7 along the middle position of the length direction thereof to form a lever structure, the rotating plane of the central line of the rotating rod 8 is vertical to the plane of the test platform 1, one end of the rotating rod 8 is a suspension end, the other end is an operation end, the suspension end of the rotating rod 8 passes through the sliding ring 5, the inner diameter of the sliding ring 5 is larger than the diameter of the rotating rod 8, when the suspension rod 4 moves downwards, the suspension rod 4 can pull the suspension end of the rotating rod 8 to rotate downwards through the sliding ring 5, a limiting block 9 is arranged above the operation end of the rotating rod 8, the top surface of the test platform 1 is fixedly connected with a supporting rod 10 fixedly connected with the limiting block 9, when the end that suspends in midair of dwang 8 rotates downwards, the operating end of dwang 8 can the butt on stopper 9's bottom surface, when the operating end butt of dwang 8 is on stopper 9, it is separated from the upper end of spacing slide tube 2 to suspend pole 4 in midair, still install timing device 11 on test platform 1's the top surface, be provided with the display screen that can show timing time on timing device 11, install the starting switch 13 that can control timing device 11 and open on stopper 9's the bottom surface, starting switch 13 has the start button on one side of test platform 1, when the operating end of dwang 8 rotates towards stopper 9 place direction, the operating end of dwang 8 can contradict on the start button in order to open timing device 11.

Correspond start switch 13's position fixedly connected with operation touch piece 14 on dwang 8's the operation end orientation when stopper 9 place direction rotates, operation touch piece 14 can contradict on the start button, the position that just is located start switch 13 on stopper 9's the bottom surface is equipped with the annular ring along vertical direction is concave, and start switch 13 is located the inboard of annular ring, and annular ring department is provided with spring 15 with the central line, and spring 15's one end stretches into in the annular ring and the card is fixed at annular ring Kong Deshang, and spring 15's the other end is connected on dwang 8's the operation end, operation touch piece 14 object are located spring 15's inboard, and spring 15 can make operation touch piece 14 and start button separate the setting when not experimenting, suspend in midair when the examination mouse hangs on suspension rod 4, dwang 8's operation end can extrude spring 15 so that operation touch piece 14 contradicts on the start button.

The pole body of position slide 3 and be close to in its upper end position arch be formed with around position slide 3 circumference sets up bulge loop 16, ring cover 17 under the both ends difference fixedly connected with of suspension pole 4, lower ring cover 17 cover is established and is corresponded position slide 3 just is located the pole body of bulge loop 16 top, the one end fixedly connected with of slip ring 5 is kept away from to connecting rod 6 goes up ring cover 18, goes up ring cover 18 cover and establishes and correspond position slide 3 just is located a side pole that lower ring cover 17 is back to bulge loop 16 on one's body, position slide 3 is located the pole body of upper ring cover 18 back to lower ring cover 17 one side and is gone up screw-thread fit and has and be used for supporting tightly gland nut 12 on bulge loop 16 with upper ring cover 18 and lower ring cover 17.

The top surface of the test platform 1 corresponds the position of the limiting sleeve 2 is concavely provided with a connecting screw hole along the vertical direction, the connecting screw hole is provided with a connecting stud, the length of the connecting stud is greater than the depth of the connecting screw hole, the lower end of the connecting stud is matched in the connecting screw hole in a threaded manner and is abutted against the connecting screw hole Kong Deshang, the lower end pipe hole of the limiting sleeve 2 is provided with a connecting thread, the lower end of the limiting sleeve 2 is connected to a column body, outside the connecting screw hole, of the connecting stud through the connecting thread, and the lower end of the limiting sleeve 2 is abutted against the top surface of the test platform 1.

The utility model discloses a test platform, including test platform 1, hang jib 4, camera device 21, image processing system 21, timing device 11 and image processing system 21 electricity, the position fixedly connected with photography support 19 that just is located hang 4 one side of jib on the top surface of test platform 1 installs on the photography support 19 can be right the examination mouse that awaits measuring that hangs on the hang jib 4 carries out the camera shooting 20, still install image processing system 21 on test platform 1's the top surface, camera device 20 and image processing system 21 electricity are connected, timing device 11 and image processing system 21 electricity are connected, and when timing device 11 reachs the timing end, image processing system 21 can acquire under the current time the test image of mouse on the hang jib 4, and image processing system 21 can handle the test image who acquires and draw the test result.

Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A mouse rope suspension test device is characterized in that: the device comprises a test platform, limiting guide pipes are arranged on the top surface of the test platform at intervals along the horizontal direction, the limiting guide pipes are vertically arranged, the lower ends of the limiting guide pipes are fixedly connected to the top surface of the test platform, limiting slide rods are arranged on the limiting guide pipes, the lower ends of the limiting slide rods extend into the limiting guide pipes through upper end pipe orifices of the limiting guide pipes, the length of each limiting slide rod is smaller than that of each limiting guide pipe, the limiting slide rods can be in sliding fit with the limiting guide pipes along the central line direction of the limiting guide pipes, suspension rods used for carrying out suspension tests on mice to be tested are arranged between the two limiting slide rods, two ends of each suspension rod are respectively and fixedly connected to the upper ends of the two limiting slide rods, sliding rings are arranged above the suspension rods, connecting rods respectively and fixedly connected with the upper ends of the two limiting slide rods are fixedly connected to the sliding rings, and hinged supports are fixedly connected to the top surface of the test platform and positioned on one side of the two limiting guide pipes, the hinged support is provided with a rotating rod, the rotating rod is hinged and connected on the hinged support along the middle position of the length direction of the rotating rod to form a lever structure, the rotating plane of the central line of the rotating rod is perpendicular to the plane of the test platform, one end of the rotating rod is a suspension end, the other end of the rotating rod is an operation end, the suspension end of the rotating rod penetrates through a sliding ring, the inner diameter of the sliding ring is larger than the diameter of the rotating rod, when the suspension rod moves downwards, the suspension rod can pull the suspension end of the rotating rod to rotate downwards through the sliding ring, a limit block is arranged above the operation end of the rotating rod, the top surface of the test platform is fixedly connected with a support rod fixedly connected with the limit block, when the suspension end of the rotating rod rotates downwards, the operation end of the rotating rod can abut against the bottom surface of the limit block, and when the operation end of the rotating rod abuts against the limit block, the suspension rod is separated from the upper end of the limit sliding pipe, still install timing device on test platform's the top surface, the last display screen that can show timing time that is provided with of timing device installs the starting switch that can control timing device and open on the bottom surface of stopper, and starting switch has the start button on the side of one side of experiment platform, and when the operation end of dwang rotated towards stopper place direction, the operation end of dwang can contradict on the start button in order to open timing device.

2. The mouse cord suspension test device according to claim 1, wherein: correspond starting switch's position fixedly connected with operation touch piece on the operation end of dwang, work as the operation end orientation of dwang when stopper place direction rotates, operation touch piece can contradict on start button, the position that just is located start switch on the bottom surface of stopper is equipped with the annular ring along vertical direction is concave, and start switch is located the inboard of annular ring, and annular ring department is provided with the spring with the central line, and the one end of spring stretches into in the annular ring and the card is solid in annular ring Kong Deshang, and the other end of spring is connected on the operation end of dwang, operation touch piece object are located the inboard of spring, and the spring can make operation touch piece and start button be separated by the setting when not experimenting, suspend the mouse that awaits measuring in midair when on the suspension pole, the operation end of dwang can extrude so that operation touch piece contradicts on start button to the spring.

3. The mouse cord suspension test device according to claim 1, wherein: the pole body of limit slide bar and be close to in its upper end position is protruding to be formed with around limit slide bar circumference sets up the bulge loop, ring cover under the both ends difference fixedly connected with of suspension pole, lower ring cover establish corresponding limit slide bar just is located the pole body of bulge loop top, and the ring cover is gone up to the one end fixedly connected with that the slip loop was kept away from to the connecting rod, goes up the ring cover and establishes corresponding limit slide bar just is located one side pole body of ring cover back to the bulge loop down, limit slide bar is located the pole body of ring cover back to lower ring cover one side and is gone up screw-thread fit and have and be used for supporting last ring cover and lower ring cover tightly gland nut on the bulge loop.

4. The mouse cord suspension test device according to claim 1, wherein: the top surface of the test platform corresponds the position of the limiting conduit is concavely provided with a connecting screw hole along the vertical direction, the connecting screw hole is provided with a connecting stud, the length of the connecting stud is greater than the depth of the connecting screw hole, the lower end of the connecting stud is matched in the connecting screw hole in a threaded manner and is abutted against the connecting screw hole Kong Deshang, a lower end pipe hole of the limiting conduit is provided with a connecting thread, the lower end of the limiting conduit is connected to a column body, located outside the connecting screw hole, of the connecting stud in a threaded manner through the connecting thread, and the lower end of the limiting conduit is abutted against the top surface of the test platform.

5. The mouse cord suspension test device of claim 1, wherein: the position fixedly connected with photography support that just is located suspension rod one side on test platform's the top surface, it can be right to install on the photography support the examination mouse that hangs on the suspension rod carries out the camera device that makes a video recording, still install image processing system on test platform's the top surface, camera device is connected with image processing system electricity, timing device is connected with image processing system electricity, and when timing device reachd the timing end, image processing system can acquire under the current time the test image of mouse on the suspension rod, image processing system can handle the test image who acquires and reachs the test result.