CN113855300A - Animal crush injury simulation experiment device - Google Patents
Animal crush injury simulation experiment device Download PDFInfo
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- CN113855300A CN113855300A CN202111324203.2A CN202111324203A CN113855300A CN 113855300 A CN113855300 A CN 113855300A CN 202111324203 A CN202111324203 A CN 202111324203A CN 113855300 A CN113855300 A CN 113855300A
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- 241001465754 Metazoa Species 0.000 title claims abstract description 40
- 208000025962 Crush injury Diseases 0.000 title claims abstract description 32
- 238000004088 simulation Methods 0.000 title claims abstract description 21
- 238000002474 experimental method Methods 0.000 claims abstract description 52
- 238000001125 extrusion Methods 0.000 claims abstract description 44
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 208000014674 injury Diseases 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 2
- 210000003414 extremity Anatomy 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 206010050702 Crush syndrome Diseases 0.000 description 1
- 206010017788 Gastric haemorrhage Diseases 0.000 description 1
- 206010064470 Muscle swelling Diseases 0.000 description 1
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 208000025966 Neurological disease Diseases 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 201000006370 kidney failure Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D3/00—Appliances for supporting or fettering animals for operative purposes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D3/00—Appliances for supporting or fettering animals for operative purposes
- A61D2003/006—Appliances for supporting or fettering animals for operative purposes with leg or foot restraining means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Animal Husbandry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of medicine, and provides an animal crush injury simulation experiment device which comprises an experiment platform, a fixed table, a moving structure, a telescopic structure and an extrusion piece, wherein the experiment platform is horizontally arranged; the fixed platform is arranged above the experiment platform; the moving structure comprises a moving sleeve and a threaded rod, the moving sleeve is sleeved outside the fixed table and extends downwards, and the moving sleeve is connected with the fixed table in a vertical sliding mode; the threaded rod is arranged in the movable sleeve, the upper end of the threaded rod penetrates through the fixed table, and the threaded rod is in threaded connection with the fixed table; the telescopic structure comprises a first screw rod, a moving block, a second screw rod, a motor, two sliding blocks, two first connecting plates, two second connecting plates and a top block; the extrusion is connected to the lower end of the top block. The motor acts to drive the extrusion piece to extrude the animal placed on the experiment platform through a series of actions, so that the simulation of the extrusion injury is realized.
Description
Technical Field
The invention relates to the technical field of medicine, in particular to an animal crush injury simulation experiment device.
Background
Crush injury is defined as compression of the extremities or other parts of the body, resulting in muscle swelling and/or neurological disease in the affected body part. Typical affected parts of the body include the lower extremities (74%), the upper extremities (10%) and the torso (9%). The hand and foot are often damaged by extrusion caused by violent extrusion of blunt objects such as bricks, stones, doors and windows, machines or vehicles; crush injuries caused by blast shock are also seen, and these crush injuries often damage the internal organs, resulting in gastric bleeding, rupture of the lungs and liver-spleen, etc. The more serious crush injury is the buried crush injury of earthwork and stone, which often causes a series of pathological changes of the body and even causes renal failure, called "crush syndrome".
Likewise, crush injuries are also very common in the event of earthquakes, coal mine collapse, traffic accidents, and the like. Under the condition of crush injury, the prognosis is poor if the crush injury is not treated immediately, the death rate of the crush injury can reach 13 to 40 percent at present, and the treatment of the crush injury is complex, the cost is huge, but the effect is not ideal. In order to further study the treatment method of the crush injury, it is necessary to construct a device for simulating the crush injury of the animal, which can effectively and stably construct the occasion of the crush injury of the animal.
Disclosure of Invention
Aiming at the problems in the prior art, the technical problems to be solved by the invention are as follows: how to construct a device for simulating animal crush injury, which can effectively and stably construct the occasion of animal crush injury.
In order to solve the technical problems, the invention adopts the following technical scheme: an animal crush injury simulation experiment device, comprising: the experiment platform is horizontally arranged; the fixed table is arranged above the experiment platform; the moving structure comprises a moving sleeve and a threaded rod, the moving sleeve is sleeved outside the fixed table and extends downwards, and the moving sleeve is connected with the fixed table in a vertical sliding mode; the threaded rod is arranged in the movable sleeve, the upper end of the threaded rod penetrates through the fixed table, and the threaded rod is in threaded connection with the fixed table; the telescopic structure comprises a first screw rod, a moving block, a second screw rod, a motor, two sliding blocks, two first connecting plates, two second connecting plates and a top block; the first screw rod is fixedly connected with the lower end of the threaded rod, and the first screw rod and the threaded rod are coaxial; the moving block is arranged at the lower end of the first lead screw, the lower end of the first lead screw penetrates through the moving block, and the first lead screw is connected with the moving block through a ball screw nut pair; the second screw rod is transversely arranged below the moving block and is rotatably connected with the moving sleeve; an output shaft of the motor is fixedly connected with the second screw rod; the two sliding blocks are sleeved on the second screw rod, the two sliding blocks are connected with the second screw rod through a ball screw nut pair, and the rotating directions of threads on the two sliding blocks are opposite; one end of the first connecting plate is hinged with the upper end of the sliding block, and the other end of the first connecting plate is hinged with the moving block; one end of each of the two second connecting plates is hinged with the lower end of the sliding block; the other end of the second connecting plate is provided with a top block, and the second connecting plate is hinged with the top block; and an extrusion member connected to a lower end of the top block.
According to the invention, through the action of the motor, the motor drives the second screw rod to rotate, the second screw rod drives the two slide blocks connected with the second screw rod through the ball screw rod nut pair to move oppositely, the slide blocks drive one ends of the first connecting plate and the second connecting plate to move inwards, meanwhile, the other end of the second connecting plate drives the ejector block to move downwards, and the ejector block drives the extrusion piece to extrude the animal placed on the experimental platform. Meanwhile, one end, far away from the sliding block, of the first connecting plate drives the moving block to move upwards, the moving block drives the first screw rod connected with the moving block through the ball screw nut pair to rotate, the first screw rod drives the threaded rod to rotate, the threaded rod moves on the fixed table, and therefore the moving sleeve connected with the fixed table in a sliding mode is driven to move downwards, the extrusion range of the extrusion piece can be further enlarged, and simulation of extrusion injury is achieved.
Preferably, the extruded part comprises a replacing rod and an extruding block, the upper end of the replacing rod is detachably connected with the ejecting block, and the lower end of the replacing rod is connected with the extruding block through a spherical hinge. Through dismantling the extrusion piece of changing the removable not equidimension of pole, can also carry out different settings to the surface of extrusion piece to this simulates different kinds of extrusion wound, connects through the ball pivot and can finely tune the angle of extrusion piece, thereby extrudees the animal through different angles.
Preferably, the device further comprises a position adjusting structure, wherein the position adjusting structure comprises a rectangular slide rail and four telescopic cylinders; the rectangular sliding rail is sleeved outside the fixed table and has a certain distance, and the track of the rectangular sliding rail is arranged in parallel with the experiment platform; four telescopic cylinder locates four sides around the fixed station, and the one end and the fixed station fixed connection of four telescopic cylinder, the other end and the rectangle slide rail sliding connection of four telescopic cylinder. Through the cooperation of four telescoping cylinders, change the position of fixed station on the horizontal direction for the fixed station moves on the horizontal plane, thereby changes the position of extruded article, realizes carrying out the extrusion experiment to animal different positions with this.
Preferably, the binding structure further comprises two symmetrically arranged binding assemblies, and each binding assembly comprises a third screw rod, two vertical rods, two cross rods, two sliding sleeves and two binding belts; a sliding groove is formed in the upper end face of the experiment platform, the third screw rod is arranged in the sliding groove, one end of the third screw rod penetrates through the experiment platform, and the third screw rod is rotatably connected with the experiment platform; the two vertical rods are sleeved on the third screw rod and connected with the third screw rod through a ball screw nut pair, the screwing directions of the threads on the two vertical rods are opposite, and the upper ends of the two vertical rods extend out of the sliding groove; the inner side of the upper end of each vertical rod is fixedly provided with a cross rod, each cross rod is connected with a sliding sleeve in a threaded manner, and each sliding sleeve is fixedly connected with a binding belt. Rotate the third lead screw, the third lead screw drives rather than two montants of passing through ball screw nut pair and connecting and moves in opposite directions in the spout to make the interval between two bandages change, this in order to realize binding the four limbs of the animal of equidimension not through the ribbon, rotate the sliding sleeve, make the sliding sleeve move on the horizontal pole, change the interval between another direction ribbon with this.
Preferably, the device also comprises an illuminating lamp, and the illuminating lamp is arranged on the experiment platform. The experiment platform is lighted up to the light for it is more convenient when observing.
Preferably, still include two fixed plates, two the experiment platform subtend both sides are located respectively to the fixed plate, experiment platform and fixed plate fixed connection, rectangle slide rail and fixed plate fixed connection. The experiment platform and the rectangular sliding rail are fixed through the two fixing plates.
Preferably, support columns are fixedly arranged at four corners of the lower end of the experiment platform. The experiment platform is supported by the supporting columns.
Preferably, still include pressure sensor and PLC, experiment platform upper end is located to pressure sensor's signal acquisition end, and pressure sensor's signal output part is connected with PLC, PLC's signal output part is connected with the motor. The PLC controls the motor through data collected by the pressure sensor, so that the extrusion force applied to the animal is controlled.
Compared with the prior art, the invention has at least the following advantages:
1. the simulation of crush injury can be realized. According to the invention, through the action of the motor, the motor drives the second screw rod to rotate, the second screw rod drives the two slide blocks connected with the second screw rod through the ball screw rod nut pair to move oppositely, the slide blocks drive one ends of the first connecting plate and the second connecting plate to move inwards, meanwhile, the other end of the second connecting plate drives the ejector block to move downwards, and the ejector block drives the extrusion piece to extrude the animal placed on the experimental platform. Meanwhile, one end, far away from the sliding block, of the first connecting plate drives the moving block to move upwards, the moving block drives the first screw rod connected with the moving block through the ball screw nut pair to rotate, the first screw rod drives the threaded rod to rotate, the threaded rod moves on the fixed table, and therefore the moving sleeve connected with the fixed table in a sliding mode is driven to move downwards, the extrusion range of the extrusion piece can be further enlarged, and the simulation of extrusion injury is achieved.
2. Can extrude through different angles, can also set up different sizes. The invention can replace the extrusion blocks with different sizes by disassembling the replacement rod, and can also carry out different settings on the surfaces of the extrusion blocks so as to simulate different types of extrusion injuries.
3. Can be more convenient bind the animal. According to the invention, an animal is placed on the experiment platform, the third screw rod is rotated, the third screw rod drives the two vertical rods connected with the third screw rod through the ball screw rod nut pair to move in the sliding groove in the opposite direction, so that the distance between the two binding belts is changed, the sliding sleeve is rotated to move on the transverse rod, so that the distance between the binding belts in the other direction is changed, and after the positions of the binding belts are adjusted, the animal is bound by the limbs of the animal.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a perspective view of an animal crush injury simulation experiment device provided by an embodiment of the invention.
Fig. 2 is a right side view of an animal crush injury simulation experiment device provided by an embodiment of the invention.
Fig. 3 is a partial enlarged view provided by an embodiment of the present invention.
Fig. 4 is a perspective view of a binding structure provided in an embodiment of the present invention.
Reference numerals: 1-experiment platform, 11-support column, 12-chute; 2-a fixed table; 3-moving structure, 31-moving sleeve, 32-threaded rod; 4-a telescopic structure, 41-a first screw rod, 42-a moving block, 43-a second screw rod, 44-a motor, 45-a sliding block, 46-a first connecting plate, 47-a second connecting plate and 48-a top block; 5-extrusion piece, 51-replacement rod, 52-extrusion block; 6-position adjusting structure, 61-rectangular slide rail, 62-telescopic cylinder; 7-binding component, 71-third screw rod, 72-vertical rod, 73-horizontal rod, 74-sliding sleeve; 8-lighting lamps; 9-fixing the plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
In the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-3, embodiments of the present invention are provided: an animal crush injury simulation experiment device, comprising: the device comprises an experiment platform 1, a fixed table 2, a movable structure 3, a telescopic structure 4 and an extrusion piece 5, wherein the experiment platform 1 is horizontally arranged, and further comprises a lighting lamp 8 for facilitating observation, and the lighting lamp 8 is arranged on the experiment platform 1; the illuminating lamp 8 illuminates the experiment platform 1; further, fixed support column 11 that is equipped with in 1 lower extreme four corners department of experiment platform supports experiment platform 1 through support column 11. The fixed platform 2 is arranged above the experiment platform 1; the moving structure 3 comprises a moving sleeve 31 and a threaded rod 32, the moving sleeve 31 is sleeved outside the fixed table 2 and extends downwards, and the moving sleeve 31 is connected with the fixed table 2 in a vertical sliding mode; the threaded rod 32 is arranged in the movable sleeve 31, the upper end of the threaded rod 32 penetrates through the fixed table 2, and the threaded rod 32 is in threaded connection with the fixed table 2; the telescopic structure 4 comprises a first screw rod 41, a moving block 42, a second screw rod 43, a motor 44, two sliding blocks 45, two first connecting plates 46, two second connecting plates 47 and a top block 48; the first screw rod 41 is fixedly connected with the lower end of the threaded rod 32, and the first screw rod 41 and the threaded rod 32 are coaxial; the moving block 42 is arranged at the lower end of the first lead screw 41, the lower end of the first lead screw 41 penetrates through the moving block 42, and the first lead screw 41 is connected with the moving block 42 through a ball screw nut pair; the second lead screw 43 is transversely arranged below the moving block 42, and the second lead screw 43 is rotatably connected with the moving sleeve 31; an output shaft of the motor 44 is fixedly connected with the second screw rod 43; the two sliding blocks 45 are sleeved on the second screw 43, the two sliding blocks 45 are connected with the second screw 43 through a ball screw nut pair, and the rotating directions of the threads on the two sliding blocks 45 are opposite; one end of the first connecting plate 46 is hinged with the upper end of the sliding block 45, and the other end of the first connecting plate 46 is hinged with the moving block 42; one end of each of the two second connecting plates 47 is hinged to the lower end of the sliding block 45; the other end of the second connecting plate 47 is provided with a top block 48, and the second connecting plate 47 is hinged with the top block 48; the extrusion 5 is attached to the lower end of the top block 48.
Referring to fig. 2 and 3, the pressing member 5 may also have a structure including a replacement rod 51 and a pressing block 52, the replacement rod 51 having an upper end detachably coupled to the top block 48, and the replacement rod 51 having a lower end coupled to the pressing block 52 by a ball hinge. Through dismantling and changing the extrusion piece 52 of the removable not equidimension of pole 51, can also carry out different settings to the surface of extrusion piece 52 to this simulates different kinds of extrusion wound, connects through the ball pivot and can finely tune the angle of extrusion piece 52, thereby extrudees the animal through different angles.
Referring to fig. 1, in other embodiments, the position adjusting structure 6 is further included, and the position adjusting structure 6 includes a rectangular slide rail 61 and four telescopic cylinders 62; the rectangular sliding rail 61 is sleeved outside the fixed table 2 and has a certain distance, and the track of the rectangular sliding rail 61 is arranged in parallel with the experiment platform 1; four telescoping cylinders 62 are arranged on four sides of the periphery of the fixed platform 2, one ends of the four telescoping cylinders 62 are fixedly connected with the fixed platform 2, and the other ends of the four telescoping cylinders 62 are slidably connected with the rectangular sliding rail 61. When one telescopic cylinder 62 extends, the opposite telescopic cylinders 62 are shortened by the same distance, and the position of the fixed platform 2 in the horizontal direction is changed through the matching of the four telescopic cylinders 62, so that the position of the extrusion piece 5 is changed, and the extrusion experiment of different positions of animals is realized.
Referring to fig. 4, in a further embodiment, the binding structure further comprises two symmetrically arranged binding assemblies 7, each binding assembly 7 comprises a third screw 71, two vertical rods 72, two cross rods 73, two sliding sleeves 74 and two binding bands; the upper end surface of the experiment platform 1 is provided with a sliding groove 12, a third screw rod 71 is arranged in the sliding groove 12, one end of the third screw rod 71 penetrates through the experiment platform 1, and the third screw rod 71 is rotatably connected with the experiment platform 1; the two vertical rods 72 are sleeved on the third screw 71, the two vertical rods 72 are connected with the third screw 71 through a ball screw nut pair, the screwing directions of the threads on the two vertical rods 72 are opposite, and the upper ends of the two vertical rods 72 extend out of the sliding groove 12; a cross rod 73 is fixedly arranged on the inner side of the upper end of each vertical rod 72, a sliding sleeve 74 is connected to each cross rod 73 through threads, and a binding belt is fixedly connected to each sliding sleeve 74.
For further fixed with experiment platform 1 and rectangle slide rail 61, still include two fixed plates 9, 1 subtend both sides of experiment platform are located respectively to two fixed plates 9, experiment platform 1 and fixed plate 9 fixed connection, rectangle slide rail 61 and fixed plate 9 fixed connection.
In order to adjust the size of the extrusion force conveniently, the device further comprises a pressure sensor and a PLC, the signal acquisition end of the pressure sensor is arranged at the upper end of the experiment platform 1, the signal output end of the pressure sensor is connected with the PLC, and the signal output end of the PLC is connected with the motor 44. A pressure threshold value is set in the PLC, when the data collected by the pressure sensor is smaller than the pressure threshold value, the motor 44 is controlled to rotate forwards to increase the pressure, when the data collected by the pressure sensor is larger than the pressure threshold value, the motor 44 is controlled to rotate backwards to decrease the pressure, and when the data collected by the pressure sensor is equal to the pressure threshold value, the motor 44 is controlled to stop rotating. The pressure on the animal is kept unchanged, and the extrusion force on the animal is controlled by setting the pressure threshold value.
The working principle and the using process of the invention are as follows:
the animal is placed on the experiment platform 1, the third screw 71 is rotated, the third screw 71 drives the two vertical rods 72 which are connected with the third screw through the ball screw nut pair to move in the sliding groove 12 in the opposite direction, so that the distance between the two binding belts is changed, the sliding sleeve 74 is rotated, the sliding sleeve 74 is moved on the transverse rod 73, the distance between the binding belts in the other direction is changed, and after the position of the binding belts is adjusted, the animal is bound by the limbs of the animal.
The telescopic cylinder 62 is controlled to extend, the telescopic cylinder 62 on the opposite side is shortened by corresponding length, so that the position of the fixed platform 2 is changed, the fixed platform 2 can be controlled to move at each position in the horizontal direction through the matching of the four telescopic cylinders 62, and the position of the extrusion part 5 is controlled, so that the extrusion experiment on different positions of animals is realized.
After the position adjustment of extruded article 5, can control the action of motor 44, motor 44 drives second lead screw 43 and rotates, second lead screw 43 drives two and its slider 45 that is connected through the ball screw nut pair and moves in opposite directions, slider 45 drives the inboard removal of the one end of first connecting plate 46 and second connecting plate 47, and the other end of second connecting plate 47 drives kicking block 48 and moves down simultaneously, and kicking block 48 drives extruded article 5 and extrudes the animal of placing at experiment platform 1. Meanwhile, one end, far away from the sliding block 45, of the first connecting plate 46 drives the moving block 42 to move upwards, the moving block 42 drives the first screw rod 41 connected with the moving block through a ball screw nut pair to rotate, the first screw rod 41 drives the threaded rod 32 to rotate, the threaded rod 32 moves on the fixed table 2, and therefore the moving sleeve 31 connected with the fixed table 2 in a sliding mode is driven to move downwards, the extrusion range of the extrusion part 5 can be further enlarged, and the simulation of extrusion injury is achieved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (8)
1. An animal crush injury simulation experiment device is characterized by comprising:
the experiment platform (1), the experiment platform (1) is horizontally arranged;
the fixed platform (2), the fixed platform (2) is arranged above the experiment platform (1);
the moving structure (3) comprises a moving sleeve (31) and a threaded rod (32), the moving sleeve (31) is sleeved on the outer side of the fixed table (2) and extends downwards, and the moving sleeve (31) is connected with the fixed table (2) in a vertical sliding mode; the threaded rod (32) is arranged in the movable sleeve (31), the upper end of the threaded rod (32) penetrates through the fixed table (2), and the threaded rod (32) is in threaded connection with the fixed table (2);
the telescopic structure (4) comprises a first screw rod (41), a moving block (42), a second screw rod (43), a motor (44), two sliding blocks (45), two first connecting plates (46), two second connecting plates (47) and a top block (48); the first screw rod (41) is fixedly connected with the lower end of the threaded rod (32), and the first screw rod (41) and the threaded rod (32) are coaxial; the moving block (42) is arranged at the lower end of the first lead screw (41), the lower end of the first lead screw (41) penetrates through the moving block (42), and the first lead screw (41) is connected with the moving block (42) through a ball lead screw nut pair; the second screw rod (43) is transversely arranged below the moving block (42), and the second screw rod (43) is rotatably connected with the moving sleeve (31); an output shaft of the motor (44) is fixedly connected with the second screw rod (43); the two sliding blocks (45) are sleeved on the second screw rod (43), the two sliding blocks (45) are connected with the second screw rod (43) through a ball screw nut pair, and the rotating directions of threads on the two sliding blocks (45) are opposite; one end of the first connecting plate (46) is hinged with the upper end of the sliding block (45), and the other end of the first connecting plate (46) is hinged with the moving block (42); one end of each of the two second connecting plates (47) is hinged with the lower end of the sliding block (45); the other end of the second connecting plate (47) is provided with a top block (48), and the second connecting plate (47) is hinged with the top block (48); and
an extrusion member (5), the extrusion member (5) being connected to the lower end of the top block (48).
2. An animal crush injury simulation experiment device according to claim 1, wherein the extrusion member (5) comprises a replacement rod (51) and a squeezing block (52), the upper end of the replacement rod (51) is detachably connected with the top block (48), and the lower end of the replacement rod (51) is connected with the squeezing block (52) through a ball hinge.
3. The animal crush injury simulation experiment device according to claim 1, further comprising a position adjusting structure (6), wherein the position adjusting structure (6) comprises a rectangular slide rail (61) and four telescopic cylinders (62);
the rectangular sliding rail (61) is sleeved outside the fixed platform (2) and has a certain distance, and the track of the rectangular sliding rail (61) is arranged in parallel with the experiment platform (1);
four telescopic cylinder (62) are arranged on four sides of the periphery of the fixed platform (2), one end of each telescopic cylinder (62) is fixedly connected with the fixed platform (2), and the other end of each telescopic cylinder (62) is connected with the rectangular sliding rail (61) in a sliding mode.
4. The animal crush injury simulation experiment device according to claim 1, further comprising a binding structure, wherein the binding structure comprises two symmetrically arranged binding assemblies (7), each binding assembly (7) comprises a third screw rod (71), two vertical rods (72), two cross rods (73), two sliding sleeves (74) and two binding belts;
the upper end surface of the experiment platform (1) is provided with a sliding groove (12), the third screw rod (71) is arranged in the sliding groove (12), one end of the third screw rod (71) penetrates through the experiment platform (1), and the third screw rod (71) is rotatably connected with the experiment platform (1);
the two vertical rods (72) are sleeved on the third screw rod (71), the two vertical rods (72) are connected with the third screw rod (71) through ball screw nut pairs, the screwing directions of the threads on the two vertical rods (72) are opposite, and the upper ends of the two vertical rods (72) extend out of the sliding groove (12); a cross rod (73) is fixedly arranged on the inner side of the upper end of each vertical rod (72), a sliding sleeve (74) is in threaded connection with each cross rod (73), and a binding belt is fixedly connected to each sliding sleeve (74).
5. The animal crush injury simulation experiment device according to claim 1, further comprising an illuminating lamp (8), wherein the illuminating lamp (8) is installed on the experiment platform (1).
6. The animal crush injury simulation experiment device according to any one of claims 1 to 5, further comprising two fixing plates (9), wherein the two fixing plates (9) are respectively arranged on two opposite sides of the experiment platform (1), the experiment platform (1) is fixedly connected with the fixing plates (9), and the rectangular sliding rail (61) is fixedly connected with the fixing plates (9).
7. The animal crush injury simulation experiment device according to claim 6, wherein support columns (11) are fixedly arranged at four corners of the lower end of the experiment platform (1).
8. The animal crush injury simulation experiment device according to claim 1, further comprising a pressure sensor and a PLC, wherein a signal acquisition end of the pressure sensor is arranged at the upper end of the experiment platform (1), a signal output end of the pressure sensor is connected with the PLC, and a signal output end of the PLC is connected with the motor (44).
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| CN202111324203.2A CN113855300B (en) | 2021-11-10 | 2021-11-10 | Animal crush injury simulation experiment device |
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| CN202111324203.2A CN113855300B (en) | 2021-11-10 | 2021-11-10 | Animal crush injury simulation experiment device |
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| CN113855300A true CN113855300A (en) | 2021-12-31 |
| CN113855300B CN113855300B (en) | 2024-04-19 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN101045017A (en) * | 2007-03-23 | 2007-10-03 | 重庆大学 | Test device for animal anterior crossed ligamentum immediate sprain |
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| CN111888167A (en) * | 2020-07-29 | 2020-11-06 | 吉林大学 | Animal dissection table for medical science experiments |
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