Experimental animal fixator capable of adjusting binding force

Abstract

The utility model discloses an experimental animal fixer capable of adjusting binding force, which comprises a fixing plate, adjustable binding belts arranged on the front side and the rear side of the upper surface of the fixing plate, and an adjusting mechanism, the adjusting mechanism comprises fixing seats, rotating shafts, winding rollers, worm wheels, worms and auxiliary assemblies, the fixing seats are arranged on the front side and the rear side of the right side face of the fixing plate, the rotating shafts are rotationally connected into the fixing seats, the winding rollers fixedly sleeve the middles of the outer surfaces of the rotating shafts, and the right ends of the binding belts are fixedly connected with the outer surfaces of the winding rollers on the same side. According to the experimental animal fixator capable of adjusting the binding force, the binding force is adjusted through the adjusting mechanism, so that different experimental animals are fixed through different binding forces, operation is easy, time is saved, and the experimental animal fixator capable of adjusting the binding force is convenient to use and high in practicability. And the experimental animal does not need to be manually fixed by an experimenter in the re-adjusting process.

Description

Technical Field

[0001] This utility model relates to the field of pharmacokinetic and bioanalytical experimental technology, specifically to an adjustable restraint device for laboratory animals. Background Technology

[0002] Pharmacokinetic experiments study the absorption, distribution, metabolism, and excretion of drugs in the body, while bioanalytical experiments perform qualitative and quantitative analysis of drugs and their metabolites in biological samples. Bioanalytical experiments provide quantitative analytical techniques for pharmacokinetic experiments, while pharmacokinetic experiments provide research directions and sample sources for bioanalytical experiments. During the experiment, drugs are usually injected into experimental animals. To prevent the animals from moving around and affecting the injection, experimental animal restraints are usually used to hold them still.

[0003] Existing laboratory animal restraints typically involve placing the animal on a restraint plate and securing it with straps. Different restraint strengths are required for different animals, necessitating the use of different sized straps or adjusting the strap length using Velcro to regulate the restraint strength.

[0004] Existing animal restraint systems have the following problems: changing different sizes of restraint straps to achieve different restraint strengths is cumbersome and time-consuming. When adjusting the restraint strength by using Velcro to adjust the length of the restraint straps, the Velcro needs to be opened and then fastened again. During the adjustment process, in order to prevent the experimental animal from moving, the experimenter needs to manually restrain the experimental animal, which is also cumbersome. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adjustable restraint device for laboratory animals. The restraint force can be adjusted by adjusting the mechanism to achieve different restraint forces to fix different laboratory animals. The operation is simple and saves time. Moreover, the laboratory personnel do not need to manually fix the laboratory animals during the adjustment process, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable restraint device for laboratory animals, comprising a fixing plate, adjustable restraint straps on both the front and rear sides of the upper surface of the fixing plate, and an adjustment mechanism;

[0007] The adjusting mechanism includes a fixed base, a rotating shaft, a take-up roller, a worm gear, a worm, and auxiliary components. Fixed bases are provided on both the front and rear sides of the right side of the fixed plate. A rotating shaft is rotatably connected inside each fixed base. A take-up roller is fixedly sleeved on the middle of the outer surface of each rotating shaft. The right end of each binding belt is fixedly connected to the outer surface of the take-up roller on the same side. A worm gear is fixedly sleeved on the front end of the outer surface of each rotating shaft. A worm is rotatably connected inside each fixed base. The worm gear is meshed with the adjacent worm. An auxiliary component is provided inside the fixed plate.

[0008] This invention adjusts the restraint force through an adjustment mechanism to fix different experimental animals with different restraint strengths. The operation is simple and saves time, and no experimental personnel need to manually fix the experimental animals during the adjustment process.

[0009] Furthermore, the auxiliary components include a sliding groove, a bidirectional lead screw, and a sliding buckle. Sliding grooves are provided on both the front and rear sides of the upper surface of the fixing plate. A bidirectional lead screw is rotatably connected inside the sliding groove. Sliding buckles are threaded to both the left and right sides of the outer surface of the bidirectional lead screw. Two sliding buckles located on the same bidirectional lead screw are slidably connected to the inside of a sliding groove on the same side, which facilitates auxiliary adjustment of the binding force.

[0010] Furthermore, the adjustment mechanism also includes a rotating disk and a rotating block. The upper end of the worm gear is provided with a rotating disk through the top wall of the fixed base, and the right end of the bidirectional lead screw is provided with a rotating block through the right side wall of the fixed plate, which facilitates the normal operation of the adjustment mechanism.

[0011] Furthermore, it also includes a fixing mechanism, which includes slots and sockets. Slots are provided on both the front and rear sides of the upper surface of the fixing plate, and a plug is provided on the left end of the restraint strap. The plugs are inserted into the slots on the same side, and a socket is provided on the left side of the plug for easy fixing of the restraint strap.

[0012] Furthermore, the fixing mechanism also includes sliding holes, inserts, and pull blocks. Sliding holes are provided on both the front and rear sides of the left side of the fixing plate. The sliding holes are connected to the slots on the same side. Inserts are slidably connected inside the sliding holes. The right end of each insert is inserted into the slot on the same side. Pull blocks are provided on the left end of each insert to facilitate fixing one end of the restraint strap.

[0013] Furthermore, the fixing mechanism also includes a limiting ring and a spring. The outer surface of each insertion post is fixedly fitted with a limiting ring, and the outer surface of each insertion post is movably fitted with a spring. The springs are located between the left side of the adjacent limiting ring and the left side wall of the sliding hole, which facilitates the normal operation of the fixing mechanism.

[0014] Furthermore, the upper surface of the fixing plate is provided with a contact plate at the rear end, and the left and right sides of the contact plate are respectively provided with female hook and loop fasteners and male hook and loop fasteners. The upper surface of the male hook and loop fasteners and the lower surface of the female hook and loop fasteners are attached to each other to facilitate fixing the head of the experimental animal.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When the restraint force needs to be adjusted, rotating the rotating disk drives the worm gear to rotate. The rotation of the worm gear drives the rotating shaft and the take-up roller to rotate through the worm wheel. Rotating the rotating block drives the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw causes the sliding buckle to slide. By adjusting the length of the restraint strap between the two sliding buckles inside the same groove, the restraint force can be changed to achieve different restraint forces to fix different experimental animals. The operation is simple and saves time. Moreover, the restraint strap keeps the experimental animal fixed during the adjustment process, so that the experimental personnel do not need to manually fix the experimental animal. Attached Figure Description

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

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0020] Figure 4 This is an enlarged structural schematic diagram of section B of this utility model;

[0021] Figure 5 This is an enlarged structural schematic diagram of point C of this utility model.

[0022] In the diagram: 1. Fixing plate, 2. Binding strap, 3. Adjustment mechanism, 31. Fixing seat, 32. Rotating shaft, 33. Take-up roller, 34. Worm gear, 35. Worm, 36. Rotating disk, 37. Auxiliary component, 371. Slide groove, 372. Bidirectional lead screw, 373. Sliding buckle, 38. Rotating block, 4. Insert plate, 5. Fixing mechanism, 51. Slot, 52. Sliding hole, 53. Insert post, 54. Insertion port, 55. Pull block, 56. Limiting ring, 57. Spring, 6. Contact plate, 7. Male hook and loop fastener, 8. Female hook and loop fastener. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This embodiment provides a technical solution: an adjustable restraint device for experimental animals, including a fixing plate 1. The upper surface of the fixing plate 1 is provided with adjustable restraint straps 2 on both the front and rear sides. The upper surface of the fixing plate 1 is provided with a contact plate 6 at the rear end. The left and right sides of the contact plate 6 are respectively provided with a female hook and loop fastener 8 and a male hook and loop fastener 7. The upper surface of the male hook and loop fastener 7 is attached to the lower surface of the female hook and loop fastener 8.

[0025] The system also includes a fixing mechanism 5, which comprises slots 51 and sockets 54. Slots 51 are provided on both the front and rear sides of the upper surface of the fixing plate 1. Insert plates 4 are provided on the left end of the binding straps 2. The insert plates 4 are inserted into the slots 51 on the same side. Sockets 54 are provided on the left side of the insert plates 4. The fixing mechanism 5 also includes sliding holes 52, insert posts 53, and pull blocks 55. Sliding holes 52 are provided on both the front and rear sides of the left side of the fixing plate 1. The sliding holes 52 are connected to the slots 51 on the same side. Insert posts 53 are slidably connected inside the sliding holes 52. The right end of the insert posts 53 is inserted into the sockets 54 on the same side. Pull blocks 55 are provided on the left end of the insert posts 53. The fixing mechanism 5 also includes a limiting ring 56 and a spring 57. The limiting ring 56 is fixedly sleeved on the outer surface of the insert posts 53. The spring 57 is movably sleeved on the outer surface of the insert posts 53. The spring 57 is located between the left side of the adjacent limiting ring 56 and the left side wall of the sliding hole 52.

[0026] The system also includes an adjustment mechanism 3, which comprises a fixed base 31, a rotating shaft 32, a take-up roller 33, a worm gear 34, a worm 35, and an auxiliary component 37. Fixed bases 31 are provided on both the front and rear sides of the right side of the fixed plate 1. The rotating shaft 32 is rotatably connected inside the fixed base 31. The take-up roller 33 is fixedly sleeved on the middle of the outer surface of the rotating shaft 32. The right end of the binding belt 2 is fixedly connected to the outer surface of the take-up roller 33 on the same side. The worm gear 34 is fixedly sleeved on the front end of the outer surface of the rotating shaft 32. The worm 35 is rotatably connected inside the fixed base 31. The worm gear 34 is meshed with the adjacent worm 35.

[0027] The fixed plate 1 is equipped with an auxiliary component 37, which includes a slide groove 371, a two-way lead screw 372, and a sliding buckle 373. The upper surface of the fixed plate 1 is provided with slide grooves 371 on both the front and rear sides. The slide grooves 371 are rotatably connected to the interior of the slide grooves 372. The outer surfaces of the two-way lead screws 372 are threaded with sliding buckles 373 on both the left and right sides. The two sliding buckles 373 located on the same two-way lead screw 372 are slidably connected to the interior of a slide groove 371 on the same side.

[0028] The adjustment mechanism 3 also includes a rotating disk 36 and a rotating block 38. The upper end of the worm gear 35 passes through the top wall of the fixed base 31 and is provided with a rotating disk 36. The right end of the bidirectional lead screw 372 passes through the right side wall of the fixed plate 1 and is provided with a rotating block 38.

[0029] The working principle of this utility model is as follows:

[0030] First, the experimenter rotates the rotating disk 36, which drives the worm 35 to rotate. The rotation of the worm 35 drives the rotating shaft 32 to rotate through the meshing worm wheel 34. The rotation of the rotating shaft 32 drives the winding roller 33 to rotate, causing the restraint strap 2 to extend to a sufficient length to fix the experimental animal.

[0031] Then, place the experimental animal on the fixing plate 1, and then pull the pull block 55. The pull block 55 drives the insertion post 53 to slide in the sliding hole 52. At this time, the limiting ring 56 compresses the spring 57. Then, the left end of the restraint strap 2 passes through the inside of the sliding buckle 373 until the insertion plate 4 is inserted into the inside of the slot 51 on the same side (at this time, the central axes of the insertion port 54, the insertion post 53 and the sliding hole 52 are all coincident). Release the pull block 55. Under the action of the spring 57, the spring 57 drives the insertion post 53 to move through the limiting ring 56 until the insertion post 53 is inserted into the inside of the insertion port 54. The left end of the restraint strap 2 is fixed by the insertion plate 4. The experimental animal is fixed on the fixing plate by the restraint strap 2. Then, the lower surface of the male hook and loop fastener 7 contacts the upper surface of the female hook and loop fastener 8, so that the barbs on the lower surface of the male hook and loop fastener 7 are tightly engaged with the fibers on the upper surface of the female hook and loop fastener 8, thereby fixing the head of the experimental animal.

[0032] When the binding force needs to be adjusted, the rotating disk 36 is rotated, which drives the worm gear 35 to rotate. The rotation of the worm gear 35 drives the rotating shaft 32 to rotate through the meshing worm wheel 34. The rotation of the rotating shaft 32 drives the take-up roller 33 to rotate, causing the length of the binding band 2 between the two sliding buckles 373 inside the same groove 371 to change, thereby changing the binding force. At the same time, the rotating block 38 is rotated, which drives the bidirectional lead screw 372 to rotate. The rotation of the bidirectional lead screw 372 causes the sliding buckles 373 connected by threads on both sides to slide in the groove 371, causing the two sliding buckles 373 inside the same groove 371 to move towards each other or away from each other, thereby achieving auxiliary adjustment of the length of the binding band 2 between the two sliding buckles 373 inside the same groove 371, thereby changing the binding force.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An experimental animal restrainer with adjustable binding force, comprising a fixing plate (1), the upper surface of the fixing plate (1) is provided with adjustable binding belts (2) on both sides, characterized in that: It also includes an adjustment mechanism (3); The adjustment mechanism (3) includes a fixed seat (31), a rotating shaft (32), a take-up roller (33), a worm gear (34), a worm (35), and an auxiliary component (37). The fixed plate (1) has fixed seats (31) on both the front and rear sides of its right side. The rotating shaft (32) is rotatably connected inside the fixed seat (31). The take-up roller (33) is fixedly sleeved on the middle of the outer surface of the rotating shaft (32). The right end of the binding belt (2) is fixedly connected to the outer surface of the take-up roller (33) on the same side. The worm gear (34) is fixedly sleeved on the front end of the outer surface of the rotating shaft (32). The worm (35) is rotatably connected inside the fixed seat (31). The worm gear (34) is meshed with the adjacent worm (35). The fixed plate (1) has an auxiliary component (37) inside.

2. The experimental animal restrainer of claim 1, wherein: The auxiliary component (37) includes a slide groove (371), a two-way lead screw (372), and a sliding buckle (373). The upper surface of the fixing plate (1) is provided with slide grooves (371) on both the front and rear sides. The two-way lead screw (372) is rotatably connected inside the slide groove (371). The two-way lead screw (372) is threadedly connected to the left and right sides of the outer surface of the two-way lead screw (372). The two sliding buckles (373) on the same two-way lead screw (372) are slidably connected to the inside of a slide groove (371) on the same side.

3. The restraint force adjustable laboratory animal restrainer according to claim 2, wherein: The adjustment mechanism (3) also includes a rotating disk (36) and a rotating block (38). The upper end of the worm (35) passes through the top wall of the fixed seat (31) and is provided with a rotating disk (36). The right end of the bidirectional lead screw (372) passes through the right side wall of the fixed plate (1) and is provided with a rotating block (38).

4. The restraint force adjustable laboratory animal restrainer according to claim 1, wherein: It also includes a fixing mechanism (5), which includes a slot (51) and an insertion port (54). The upper surface of the fixing plate (1) is provided with slots (51) on both the front and rear sides. The left end of the binding strap (2) is provided with a plate (4). The plate (4) is inserted into the slot (51) on the same side. The left side of the plate (4) is provided with an insertion port (54).

5. The restraint force adjustable laboratory animal restrainer according to claim 4, wherein: The fixing mechanism (5) also includes a sliding hole (52), a plug (53) and a pull block (55). The front and rear sides of the left side of the fixing plate (1) are provided with sliding holes (52). The sliding holes (52) are connected to the slots (51) on the same side. The plugs (53) are slidably connected inside the sliding holes (52). The right end of the plugs (53) is inserted into the socket (54) on the same side. The left end of the plugs (53) is provided with a pull block (55).

6. The restraint force adjustable laboratory animal restrainer according to claim 5, wherein: The fixing mechanism (5) also includes a limiting ring (56) and a spring (57). The outer surface of the insert (53) is fixedly fitted with a limiting ring (56), and the outer surface of the insert (53) is movably fitted with a spring (57). The spring (57) is located between the left side of the adjacent limiting ring (56) and the left side wall of the sliding hole (52).

7. The restraint force adjustable laboratory animal restrainer according to claim 1, wherein: The upper surface of the fixing plate (1) is provided with a contact plate (6) at the rear end. The left and right sides of the contact plate (6) are respectively provided with a female hook and loop fastener (8) and a male hook and loop fastener (7). The upper surface of the male hook and loop fastener (7) is attached to the lower surface of the female hook and loop fastener (8).

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