Universal rapid fixing clamp for laboratory mice

Abstract

The utility model relates to the field of laboratory mouse fixers. A universal rapid fixing clamp for laboratory mice comprises a supporting bottom plate and further comprises four-limb fixing mechanisms used for fixing four limbs, each four-limb fixing mechanism comprises an elbow clamp, and a first sliding groove used for being detachably connected with the corresponding four-limb fixing mechanism is formed in the supporting bottom plate; the neck fixing mechanism is used for fixing the neck, and a second sliding groove used for being detachably connected with the neck fixing mechanism is formed in the supporting bottom plate; the device further comprises a waist and back fixing mechanism used for fixing the waist and the back, a third sliding groove used for being detachably connected with the waist and back fixing mechanism is formed in the supporting bottom plate, the waist and back fixing mechanism comprises a supporting frame, a pressing block and a pressing plate, and the pressing plate is connected with the supporting frame through an elastic mechanism. According to the experimental mouse fixing device, multi-dimensional fixing of an experimental mouse is achieved through the four-limb fixing mechanism, the waist and back fixing mechanism and the neck fixing mechanism, and the fixing effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory mouse fixers, in particular to a laboratory mouse fixing clamp. Background Art

[0002] Rat and mouse are the most commonly used animals in experiments. When giving acupuncture (including electroacupuncture) or moxibustion to conscious rats or mice, ensuring that their body position is relatively fixed is one of the key links to ensure the success of the experiment.

[0003] The current laboratory mouse fixers on the market have the following defects:

[0004] 1) Traditionally, rats or mice are fixed by using tape to fix the limbs of experimental animals. Since experimental animals have intense stress reactions, there is a risk of them breaking free when taped, and the operation may result in scratches and bites from the experimental animals. This artificial fixation method is also inefficient.

[0005] 2) Most of the fixation devices only fix the limbs of the rats, without any pressure on the trunk and head, so the rats can easily break free.

[0006] 3) Existing fixing devices can only fix ordinary rats (the weight of ordinary rats is generally about 200 grams), or can only fix old rats (the weight of old rats is generally about 600 grams), or can only fix mice (the weight is generally about 20 grams). Existing fixing devices cannot achieve universal fixation of different experimental mice with large body differences. Utility Model Content

[0007] In view of the problems existing in the prior art, the utility model provides a universal quick fixing clamp for laboratory mice, which solves at least one of the above technical problems.

[0008] The technical solution of the utility model is: a universal quick fixing fixture for experimental mice, comprising a supporting base plate, characterized in that it also comprises a limb fixing mechanism for fixing limbs, the limb fixing mechanism comprises an elbow clamp, and a first sliding groove for detachably connecting the limb fixing mechanism is provided on the supporting base plate;

[0009] It also includes a neck fixing mechanism for fixing the neck, the support bottom plate is provided with a second slide groove for detachably connecting the neck fixing mechanism, the neck fixing mechanism includes a support frame and a neck fixing member in a U-shape with an opening facing downward, and the neck fixing member is detachably connected to the support frame;

[0010] It also includes a waist and back fixing mechanism for fixing the waist and back, a third sliding groove for detachably connecting the waist and back fixing mechanism is opened on the support bottom plate, the waist and back fixing mechanism includes a support frame, a pressure block and a pressure plate, the pressure plate is connected to the support frame through an elastic mechanism, an adjusting bolt is threaded on the support frame, the bottom of the adjusting bolt is detachably connected to the pressure block, the pressure block is used to resist the pressure plate, and the pressure plate is detachably connected to a cushion body.

[0011] The utility model realizes multi-dimensional fixation of the experimental mouse through the limb fixation mechanism, the waist and back fixation mechanism and the neck fixation mechanism, thereby greatly improving the fixation effect.

[0012] By setting the first slide groove, the second slide groove and the third slide groove, the position of each fixing mechanism is greatly improved, which is convenient for fixing experimental mice of different sizes and increases versatility. The detachable pad and the neck fixing part can be easily replaced according to different fixing requirements. For example, when replacing rats and mice, replace neck fixing parts of different sizes. For example, when fixing different rats, the U-shaped neck fixing part with the opening facing downward is a metal part, and the metal part is elastic, which is convenient for fine-tuning the elasticity. For example, when used for fixing rats, the pad body can be omitted. When used for fixing mice, a pad body is installed on the pressure plate for fixing.

[0013] Further preferably, four first sliding grooves are provided, and the four first sliding grooves extend radially outward from the center of the supporting base plate.

[0014] Further preferably, the second slide groove includes a straight guide groove whose guiding direction is the front-to-back direction and an oblique guide groove whose guiding direction is from front to back and obliquely arranged from the center;

[0015] A hinge is installed at one end of the support frame, and the hinge is detachably connected to the straight guide groove through a bolt;

[0016] The other end of the support frame is provided with a horizontally arranged flat plate portion;

[0017] The oblique guide groove is detachably connected with a pressing clamp for pressing down the flat plate portion.

[0018] It is convenient to limit and fix the neck.

[0019] Further preferably, the elastic mechanism includes a spring and a guide rod;

[0020] The inner side of the support frame is connected to two guide rods arranged on the left and right sides;

[0021] The spring is sleeved on the guide rod, and guide holes slidably connected to the guide rod are opened at the left and right ends of the pressure plate, and the lower side of the pressure plate abuts against the spring.

[0022] It is convenient to realize the up and down movement of the pressing plate through the pressing block.

[0023] Further preferably, the four corners of the support base plate are connected with support rods, and the top and bottom of the support rods are both equipped with support feet.

[0024] It is convenient to flip the supporting bottom plate 180 degrees up and down to turn the experimental mouse over.

[0025] Further preferably, the supporting bottom plate is provided with an opening, and a flip door is rotatably connected to the opening.

[0026] The abdomen of the experimental mouse can be exposed by opening the flip door.

[0027] Further preferably, the third slide groove includes a first guide portion for guiding the support frame to move forward and backward and a second guide portion for guiding the pressing clamp pressing down the support frame to move forward and backward;

[0028] A hinge is installed at one end of the support frame, and the hinge is detachably connected to the first guide portion by bolts;

[0029] The other end of the support frame is provided with a flat plate structure for the pressing clamp to press down.

[0030] Further preferably, the supporting base plate is connected to the flip door via a damping hinge.

[0031] Further preferably, the toggle clamp comprises a mounting seat, and the mounting seat is detachably connected to the supporting base plate via an adjusting bolt;

[0032] A guide groove for a sliding connection nut is provided below the first slide groove, and the nut is threadedly connected to the adjusting bolt;

[0033] The limb fixing mechanism also includes an extension pressing plate, on which a through hole for passing the adjusting bolt is formed, and the pressing block of the elbow clamp is used to press down the extension pressing plate.

[0034] It is convenient to adjust the height of the elbow clamp.

[0035] Beneficial effects:

[0036] 1) The first slide groove, the second slide groove and the third slide groove are provided to facilitate the fixation of experimental mice of different sizes, thereby greatly increasing the versatility of the fixing device.

[0037] 2) The head and waist of the experimental animals were pressed down, which greatly reduced the force of the stress response of the experimental animals and prevented them from breaking free.

[0038] 3) Flip cover, so that the experiment can be carried out on the back of the experimental animal;

[0039] 4) The waist and back fixing mechanism adopts a spring and bolt adjustment mechanism to achieve free adjustment up and down. The height is adjusted according to the pressure that the experimental animals can withstand, thus ensuring that the experimental animals are not crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0041] Figure 2 This is a schematic diagram of the structure of a rat in a fixed state in a specific embodiment 1 of the utility model;

[0042] Figure 3 This is a schematic diagram of the structure of the specific embodiment 1 of the utility model in a state where a mouse is fixed;

[0043] Figure 4 This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0044] Figure 5 It is a schematic diagram of the partial structure of the elbow clamp of the specific embodiment 1 of the utility model.

[0045] In the figure: 1 is a support base plate, 2 is a limb fixing mechanism, 3 is a neck fixing mechanism, 4 is a waist and back fixing mechanism, 5 is a support rod, 6 is a flip door, 21 is a guide groove, 22 is an elbow clamp, 23 is an extended pressure plate, 31 is a support frame, 32 is a neck fixing member, 41 is a support frame, and 42 is a pressure plate. DETAILED DESCRIPTION

[0046] See also Figures 1 to 3, a universal quick fixing fixture for experimental mice, comprising a supporting base plate 1, and also comprising a limb fixing mechanism 2 for fixing limbs, the limb fixing mechanism 2 comprising an elbow clamp, and a first slide groove for detachably connecting the limb fixing mechanism 2 is provided on the supporting base plate 1; it also comprises a neck fixing mechanism 3 for fixing the neck, and a second slide groove for detachably connecting the neck fixing mechanism 3 is provided on the supporting base plate 1, the neck fixing mechanism 3 comprises a supporting frame 31 and a neck fixing piece 32 with an opening facing downward in a U shape, and the neck fixing piece 32 is detachably connected to the supporting frame 31; it also comprises a waist and back fixing mechanism 4 for fixing the waist and back, and a third slide groove for detachably connecting the waist and back fixing mechanism 4 is provided on the supporting base plate, and the waist and back fixing mechanism 4 comprises a supporting frame 41, a pressing block and a pressing plate 42, the pressing plate 42 is connected to the supporting frame 41 through an elastic mechanism, an adjusting bolt is threadedly connected to the supporting frame 41, and a pressing block is detachably connected to the bottom of the adjusting bolt, and the pressing block is used to resist the pressing plate 42, and a pad is detachably connected to the pressing plate 42. The utility model realizes multi-dimensional fixation of laboratory mice through limb fixation mechanisms 2, waist and back fixation mechanisms 4 and neck fixation mechanisms 3, greatly improving the fixation effect. Through the setting of the first slide, the second slide and the third slide, the position of each fixing mechanism is greatly improved, which is convenient for fixing laboratory mice of different sizes and increases versatility. Through the detachable pad and the neck fixing member 32, it is convenient to replace according to different fixation requirements. For example, when rats and mice are replaced, neck fixing members of different sizes are replaced. For example, when different rats are fixed, the U-shaped neck fixing member with an opening facing downward is a metal member, and the metal member has elasticity, which is convenient for elastic fine-tuning. For example, when used for rat fixation, the pad can be omitted. When used for mouse fixation, a pad is installed on the pressure plate for fixation. The waist and back fixing mechanism can fix the waist or abdomen of the laboratory mouse. The position is adjusted according to the third slide.

[0047] Four first sliding grooves are provided, and the four first sliding grooves extend radially outward from the center of the supporting bottom plate.

[0048] The second slide groove includes a straight guide groove whose guiding direction is the front-to-back direction and an oblique guide groove whose guiding direction is from front to back and inclined from the center; a hinge is installed at one end of the support frame 31, and the hinge is detachably connected to the straight guide groove by bolts; a horizontally arranged flat plate portion is arranged at the other end of the support frame 31; a pressing clamp for pressing down the flat plate portion is detachably connected to the oblique guide groove. It is convenient for limiting and fixing the neck. Four waist-shaped holes are opened on the mounting seat of the pressing clamp.

[0049] The elastic mechanism includes a spring and a guide rod; the inner side of the support frame 41 is connected to two guide rods arranged on the left and right; the guide rods are sleeved with springs, and the left and right ends of the pressure plate 42 are provided with guide holes for sliding connection with the guide rods, and the lower side of the pressure plate abuts against the springs, so that the pressure plate 42 can be easily moved up and down by the pressure block.

[0050] The four corners of the support base are connected with support rods 5, and support feet are installed on the top and bottom of the support rods 5. It is convenient to turn the support base up and down 180 degrees to turn the experimental mouse over.

[0051] The third slide groove includes a first guide portion for guiding the front and rear movement of the support frame 41 and a second guide portion for guiding the front and rear movement of the pressing clamp for pressing the support frame 41; a hinge is installed at one end of the support frame 41, and the hinge is detachably connected to the first guide portion by bolts; a flat plate structure for pressing the clamp downward is provided at the other end of the support frame 41. Four waist-shaped holes are provided on the mounting seat of the pressing clamp.

[0052] See also Figure 4 Specific embodiment 2, based on specific embodiment 1, an opening is provided on the support bottom plate, and a flip door 6 is rotatably connected to the opening. It is convenient to expose the abdomen of the experimental mouse by opening the flip door. The support bottom plate is connected to the flip door through a damping hinge.

[0053] See also Figure 5 , Specific embodiment 3, based on specific embodiment 1, the toggle clamp 22 includes a mounting seat, and the mounting seat is detachably connected to the supporting base plate through an adjusting bolt; a guide groove 21 for slidingly connecting a nut is provided below the first slide slot, and the nut is threadedly connected to the adjusting bolt; the limb fixing mechanism also includes an extended pressing plate 23, and a through hole for passing the adjusting bolt is provided on the extended pressing plate 23, and the lower pressing block of the toggle clamp is used to press down the extended pressing plate. It is convenient to adjust the height of the toggle clamp. Four waist-shaped holes are provided on the mounting seat.

[0054] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A universal quick-fix fixture for experimental mice, comprising a supporting base plate, It is characterized in that It also includes a limb fixing mechanism for fixing the limbs, the limb fixing mechanism includes an elbow clamp, and the support bottom plate is provided with a first slide groove for detachably connecting the limb fixing mechanism; It also includes a neck fixing mechanism for fixing the neck, the support bottom plate is provided with a second slide groove for detachably connecting the neck fixing mechanism, the neck fixing mechanism includes a support frame and a neck fixing member in a U-shape with an opening facing downward, and the neck fixing member is detachably connected to the support frame; It also includes a waist and back fixing mechanism for fixing the waist and back, a third sliding groove for detachably connecting the waist and back fixing mechanism is opened on the support bottom plate, the waist and back fixing mechanism includes a support frame, a pressure block and a pressure plate, the pressure plate is connected to the support frame through an elastic mechanism, an adjusting bolt is threaded on the support frame, the bottom of the adjusting bolt is detachably connected to the pressure block, the pressure block is used to resist the pressure plate, and the pressure plate is detachably connected to a cushion body.

2. A universal quick fixing fixture for experimental mice according to claim 1, Features: There are four first sliding grooves, and the four first sliding grooves extend radially outward from the center of the supporting base plate.

3. A universal quick fixing fixture for experimental mice according to claim 1, Features: The second slide groove includes a straight guide groove whose guiding direction is the front-to-back direction and an oblique guide groove whose guiding direction is from front to back and is arranged obliquely from the center; A hinge is installed at one end of the support frame, and the hinge is detachably connected to the straight guide groove through a bolt; The other end of the support frame is provided with a horizontally arranged flat plate portion; The oblique guide groove is detachably connected with a pressing clamp for pressing down the flat plate portion.

4. A universal quick fixing fixture for experimental mice according to claim 1, Features: The elastic mechanism includes a spring and a guide rod; The inner side of the support frame is connected to two guide rods arranged on the left and right sides; The spring is sleeved on the guide rod, and guide holes slidably connected to the guide rod are opened at the left and right ends of the pressure plate, and the lower side of the pressure plate abuts against the spring.

5. A universal quick fixing fixture for experimental mice according to claim 1, Features: The four corners of the support base are connected with support rods, and the top and bottom of the support rods are both equipped with support feet.

6. A universal quick-fix fixture for experimental mice according to claim 1, Features: The third slide groove includes a first guide portion for guiding the support frame to move forward and backward and a second guide portion for guiding the pressing clamp pressing down the support frame to move forward and backward; A hinge is installed at one end of the support frame, and the hinge is detachably connected to the first guide portion by bolts; The other end of the support frame is provided with a flat plate structure for the pressing clamp to press down.

7. A universal quick fixing fixture for experimental mice according to claim 1, Features: The supporting bottom plate is provided with an opening, and a flip door is rotatably connected to the opening.

8. A universal quick-fix fixture for experimental mice according to claim 7, Features: The supporting bottom plate is connected to the flip door via a damping hinge.

9. A universal quick fixing fixture for experimental mice according to claim 1, Features: The toggle clamp includes a mounting seat, and the mounting seat is detachably connected to the supporting base plate via an adjusting bolt; A guide groove for a sliding connection nut is provided below the first slide groove, and the nut is threadedly connected to the adjusting bolt; The limb fixing mechanism also includes an extension pressing plate, on which a through hole for passing the adjusting bolt is formed, and the pressing block of the elbow clamp is used to press down the extension pressing plate.

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