Mouse cervical dislocation apparatus

Abstract

The application discloses a mouse cervical vertebra dislocation killing device, and relates to the technical field of medical experiment equipment, which comprises a storage box, a left side of the storage box is provided with an opening and closing door, and a first handle is fixedly arranged on the opening and closing door. The device is characterized in that the mouse tail needs to be pulled obliquely upward when artificially killing the mouse, the displacement of the mouse tail is twice the displacement of the telescopic rod under the action of the rotating acceleration gear, the effect of acceleration is achieved, the acceleration gear is disengaged from the meshing when moving to the moving distance, the situation that the mouse tail is broken and bleeds due to excessive pulling force is avoided, the mouse can be killed quickly, the mouse does not experience pain, and the novice experimenter can avoid feeling sick and disgusted by seeing blood.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical experiment equipment, in particular to a mouse cervical vertebra dislocation killing device. BACKGROUND

[0002] At present, the main methods for killing mice in the laboratory are cervical vertebra dislocation method, decapitation method, beating method, acute massive blood loss method and chemical killing method, among which the most commonly used is cervical vertebra dislocation method, which can avoid cruel scenes and is fast and efficient. The key to the implementation of the cervical vertebra dislocation method is to pinch the back of the mouse head with the left thumb and index finger, and press down with force, and to grasp the mouse tail with the right hand and pull it backward and upward with force, so as to dislocate the cervical vertebra and cause instantaneous death.

[0003] The patent No. CN114711272A discloses a device including a light-shielding box and a displacement generating mechanism; the light-shielding box includes a fixed forceps, a track, and an upper partition; the displacement generating mechanism includes a flip cover, a groove, and a slide rail; the light-shielding box is connected with the fixed forceps at the top, and is provided with the upper partition at the rear end; the upper partition is provided with a downward arc groove; the displacement generating mechanism is provided with the flip cover at the top, is provided with the groove at the left and right sides, and is provided with a lower partition at the front end; the lower partition is provided with an upward arc groove; the light-shielding box is provided with a ventilation pipe hole at the left side; and the light-shielding box is made of light-proof material. The device can make the mouse lose consciousness and die without pain and distress in a black and closed CO2 environment without contacting the mouse, can make the mouse die instantly due to cervical vertebra dislocation, and can reduce the time consumed by the animal from losing consciousness to death. In addition, the device can also make it convenient for the experimental personnel to kill the mouse, effectively avoids the phenomenon of personnel injury, and does not violate the animal ethics.

[0004] The above device fixes the mouse head by the fixed forceps, and then the left hand pulls the displacement generating mechanism to dislocate the spine of the mouse and cause death. However, the above operation has great limitations, and the mouse needs to drill into the hole by itself before the above operation steps can be started. In addition, when killing the mouse, it is difficult for the operator to observe the inside situation due to the setting of the light-shielding box. If a novice who is not skilled in operation kills the mouse at this time, the mouse may be very painful due to slow killing, or the mouse head may be broken due to excessive force of the novice operator, and the device may be contaminated with fresh blood, which not only takes a lot of time and effort to clean, but also easily causes the novice to produce nausea and emotional aversion to the experiment. In addition, the device is contaminated with mouse blood, which may cause the next mouse to be killed to be anxious and uneasy, and the next mouse may move around in the device, making it difficult to perform the next experiment. SUMMARY

[0005] The technical scheme of the present application provides a solution significantly different from the prior art to solve the technical problem that the prior art solution is too single.

[0006] To achieve the above object, the present application provides the following technical scheme: a mouse cervical vertebra dislocation killing device, comprising a storage box, a left side of the storage box is provided with a hinged door, a first handle is fixedly arranged on the hinged door, the storage box is provided without a cover, and an L-shaped plate is fixedly arranged on the right side of the storage box, two storage mechanisms are arranged on the L-shaped plate, two rotating plates are arranged on the top of the storage box, two sliding grooves are arranged on the rotating plates, two horizontal grooves are arranged on the top of the rotating plates, a protective cover is arranged on the top of the rotating plates, a locking mechanism is arranged in the protective cover, a placing plate is arranged on the top of the protective cover, a second handle is fixedly arranged on the top of the placing plate, two mounting plates are arranged on the right side of the protective cover, a quick killing mechanism is arranged between the two mounting plates, and a cover plate is arranged on the top of the two mounting plates.

[0007] Preferably, the two sliding grooves are symmetrically arranged in half Y shape.

[0008] Preferably, the locking mechanism comprises a U-shaped rod, a movable plate, two clamping rods, a fixed plate, four limiting blocks, a first locking hole and a second locking hole, the fixed plate is fixedly arranged on the inner wall of the protective cover, the four limiting blocks are respectively fixed on the two sides of the fixed plate, the movable plate is slidingly arranged on the inner side wall of the protective cover, the two clamping rods are movably inserted on the movable plate, the U-shaped rod is fixedly arranged on the top of the two clamping rods, the first locking hole is arranged in the middle of the bottom end of the fixed plate, and the second locking hole is arranged in the middle of the bottom end of the movable plate.

[0009] Preferably, the first locking hole and the second locking hole are both semicircular, and the first locking hole is smaller than the second locking hole.

[0010] Preferably, the movable plate is inserted and matched with the two horizontal grooves.

[0011] Preferably, the quick killing mechanism comprises two push plates, two connecting rods, an extension rod, two limiting shafts, two acceleration gears, two meshing racks, two guide shafts, two guide grooves and a third locking hole, one end of the two guide shafts is slidably arranged in the two guide grooves, the two connecting rods are fixedly arranged at the other end of the two guide shafts, respectively, one end of the two push plates is fixedly arranged at one end of the two connecting rods, respectively, the extension rod is fixedly arranged at the other end of the two connecting rods, respectively, the two limiting shafts are fixedly arranged at the bottom of the two connecting rods, respectively, and the bottom of the two limiting shafts is slidably arranged in the two sliding grooves, respectively, the two acceleration gears are rotatably arranged on the two limiting shafts, respectively, and the two meshing racks are fixedly arranged on the inner side walls of the two mounting plates.

[0012] Preferably, the two guide grooves are symmetrically arranged in a half Y shape.

[0013] Preferably, each storage mechanism comprises a first wedge block, a second wedge block, a storage rack, an extrusion plate, a spring, a storage gear, a rotating shaft and an L-shaped rod, one end of the L-shaped rod is fixedly arranged at the top of the connecting rod, the first wedge block is fixedly arranged at the other end of the L-shaped rod, the second wedge block is slidably arranged on the outer side wall of the corresponding mounting plate, the storage rack is fixedly arranged at the bottom of the second wedge block, the extrusion plate is fixedly arranged on the outer side wall of the storage rack, the spring is arranged at the bottom of the extrusion plate, the rotating shaft is fixedly arranged on the outer side of the rotating plate, and the storage gear is fixedly arranged on the rotating shaft, and the two mounting plates are provided with through grooves for sliding of the L-shaped rod.

[0014] Preferably, the outer wall of the two storage racks is provided with a vertical groove, the outer wall of the two mounting plates is fixedly provided with two U-shaped positioning rods, and one end of the four U-shaped positioning rods is slidably matched with the corresponding vertical groove.

[0015] Preferably, the two acceleration gears are meshed with the two meshing racks, respectively, and the two storage racks are meshed with the two storage gears, respectively.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] (1) The setting of the two connecting rods, the telescopic rod, the two limiting shafts, the two acceleration gears, the two meshing racks, the two guide shafts, the two guide grooves and the third locking hole realizes perfect simulation of the characteristics that the mouse tail needs to be pulled upward and obliquely when artificially killing the mouse, and through the setting of the acceleration gear, the acceleration gear rotates while the telescopic rod drives the mouse tail to be pulled, so that the displacement of the mouse tail is twice the displacement of the telescopic rod, thereby achieving the effect of acceleration, and when moving to the moving distance, the acceleration gear is disengaged from the meshing, so that the situation that the mouse tail is broken and bleeds due to too large pulling force is avoided, and through the upward movement of the limiting shaft, the limiting shaft is disengaged from the limiting of the sliding groove, so that the subsequent storage of the mouse corpse opens the rotating plate more conveniently, which can accelerate the killing of the mouse, so that the mouse does not experience pain, and also avoids the novice experimenter from seeing fresh blood and producing nausea and disgust;

[0018] (2) The setting of the U-shaped rod, the movable plate, the two clamping rods, the fixed plate, the four limiting blocks, the first locking hole and the second locking hole realizes simulation of the actual killing when the mouse neck is pressed down, the mouse head is kept stable, the tail is pulled up, the pain of the mouse is reduced to the minimum, and through the setting of the limiting block, the mouse of different sizes is adapted, and the applicability is stronger;

[0019] (3) The setting of the push plate, the telescopic rod and the connecting rod realizes the situation that the mouse itself does not drill a hole to cause the subsequent experiment to be unable to proceed, ensures the feasibility of the experiment, and the operation is simple, convenient and fast. DETAILED DESCRIPTION

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 It is a schematic diagram of the internal structure of the protective cover of the present application;

[0022] Figure 3 It is Figure 2 the enlarged view of A in the middle;

[0023] Figure 4 It is a schematic diagram of the bottom structure of the present application;

[0024] Figure 5 It is a schematic diagram of the position relationship structure of the storage mechanism and the quick killing mechanism of the present application;

[0025] Figure 6 It is a schematic diagram of the top structure of the rotating plate of the present application;

[0026] Figure 7 It is a schematic diagram of the movable plate and the fixed plate structure of the present application;

[0027] Figure 8Figure is a schematic view of the side structure of the storage mechanism and the quick killing mechanism of the application.

[0028] In the figure: 1, storage box; 2, rotating plate; 3, protective cover; 4, locking mechanism; 41, U-shaped rod; 42, movable plate; 43, clamping rod; 44, fixed plate; 45, limiting block; 46, first locking hole; 47, second locking hole; 5, storage mechanism; 51, first wedge-shaped block; 52, second wedge-shaped block; 53, storage rack; 54, extrusion plate; 55, spring; 56, storage gear; 57, rotating shaft; 58, L-shaped rod; 6, quick killing mechanism; 61, push plate; 62, connecting rod; 63, telescopic rod; 64, limiting shaft; 65, accelerating gear; 66, meshing rack; 67, guide shaft; 68, guide groove; 69, third locking hole; 7, mounting plate; 8, U-shaped positioning rod; 9, vertical groove; 10, placing plate; 11, second handle; 12, cover plate; 14, opening and closing door; 15, first handle; 16, sliding groove; 17, horizontal groove; 18, through groove; 19, L-shaped plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0030] Please refer to Figures 1-8The application provides a mouse cervical dislocation device, which comprises a storage box 1, a left side of the storage box 1 is provided with a hinged door 14, a first handle 15 is fixedly arranged on the hinged door 14, the storage box 1 is provided without a cover, an L-shaped plate 19 is fixedly arranged on the right side of the storage box 1, two storage mechanisms 5 are arranged on the L-shaped plate 19, two rotating plates 2 are arranged on the top of the storage box 1, sliding grooves 16 are arranged on the two rotating plates 2, horizontal grooves 17 are arranged on the top of the two rotating plates 2, protective covers 3 are arranged on the top of the two rotating plates 2, locking mechanisms 4 are arranged in the protective covers 3, placing plates 10 are arranged on the top of the protective covers 3, second handles 11 are fixedly arranged on the top of the placing plates 10, two mounting plates 7 are arranged on the right side of the protective covers 3, quick dislocation mechanisms 6 are arranged between the two mounting plates 7, and cover plates 12 are arranged on the top of the two mounting plates 7. First, the second handle 11 is pulled to open the placing plate 10, the mouse is placed into the protective cover 3 with the head kept in the direction of the locking mechanism 4, then the quick dislocation mechanism 6 is pushed to move towards the mouse, so that the head of the mouse is pushed below the locking mechanism 4, and at the same time, the quick dislocation mechanism 6 is opened under the action of the sliding groove 16, so that the tail of the mouse can be located in the middle position of the quick dislocation mechanism 6, then the locking mechanism 4 is pressed to lock the mouse, then the position of the locking mechanism 4 is limited, then the quick dislocation mechanism 6 is pulled to move towards the storage mechanism 5, so that the quick dislocation mechanism 6 gradually clamps the tail of the mouse, the quick dislocation mechanism 6 is continuously pulled, so that the quick dislocation mechanism 6 pulls the tail of the mouse at a high speed, and the tail of the mouse can be pulled upwards and obliquely, so that the mouse dies of cervical dislocation, then the quick dislocation mechanism 6 is continuously pulled, the quick dislocation mechanism 6 releases the clamping of the tail of the mouse, and drives the storage mechanism 5 to work, the storage mechanism 5 drives the rotating plate 2 to rotate and open, so that the dead mouse falls into the storage box 1 to be uniformly stored, and when the mouse needs to be taken out, the first handle 15 is pulled to open the hinged door 14.

[0031] Specifically, the two sliding grooves 16 are symmetrically arranged in a half Y shape.

[0032] Specifically, the locking mechanism 4 comprises a U-shaped rod 41, a movable plate 42, two clamping rods 43, a fixed plate 44, four limiting blocks 45, a first locking hole 46 and a second locking hole 47. The fixed plate 44 is fixedly arranged on the inner wall of the protective cover 3. The four limiting blocks 45 are respectively fixed on the two sides of the fixed plate 44. The movable plate 42 is slidingly arranged on the inner side wall of the protective cover 3. The two clamping rods 43 are movably inserted on the movable plate 42. The U-shaped rod 41 is fixedly arranged on the top of the two clamping rods 43. The first locking hole 46 is arranged at the bottom end of the fixed plate 44. The second locking hole 47 is arranged at the bottom end of the movable plate 42. The mouse head is preliminarily positioned by being clamped in the first locking hole 46 at the bottom of the fixed plate 44. Then the U-shaped rod 41 is pressed down to drive the movable plate 42 to be pressed down, so that the movable plate 42 is inserted in the horizontal groove 17, and the second locking hole 47 presses down the neck of the mouse. Then the clamping rod 43 is clamped below the corresponding limiting block 45 by pulling the U-shaped rod 41, so that the position of the movable plate 42 is locked. Since the limiting blocks 45 are arranged in two groups with different heights, they are suitable for mice with different body sizes, and have higher adaptability. By pressing down the second locking hole 47, the mouse neck is simulated to be pressed down during actual execution, the mouse head is kept stable, the mouse tail is convenient to pull later, and the pain of the mouse is reduced to the minimum.

[0033] Specifically, the first locking hole 46 and the second locking hole 47 are semicircular, and the first locking hole 46 is smaller than the second locking hole 47.

[0034] Specifically, the movable plate 42 is inserted and matched with the two horizontal grooves 17.

[0035] Specifically, the quick killing mechanism 6 comprises two push plates 61, two connecting rods 62, a telescopic rod 63, two limiting shafts 64, two acceleration gears 65, two meshing racks 66, two guide shafts 67, two guide grooves 68 and a third locking hole 69, the two guide grooves 68 are arranged on the inner side walls of the two mounting plates 7, one end of the two guide shafts 67 is slidably arranged in the two guide grooves 68, the two connecting rods 62 are fixedly arranged at the other ends of the two guide shafts 67, the two push plates 61 are fixedly arranged at one end of the two connecting rods 62, the two ends of the telescopic rod 63 are fixedly arranged at the other ends of the two connecting rods 62, the two limiting shafts 64 are fixedly arranged at the bottoms of the two connecting rods 62, the bottoms of the two limiting shafts 64 are slidably arranged in the two sliding grooves 16, the two acceleration gears 65 are rotatably arranged on the two limiting shafts 64, and the two meshing racks 66 are fixedly arranged on the inner side walls of the two mounting plates 7.The telescopic rod 63 is pushed to move towards the protective cover 3, so as to drive the connecting rod 62, the push plate 61, the limiting shaft 64 and the acceleration gear 65 to move synchronously, the limiting shaft 64 slides in the sliding groove 16, so as to drive the two push plates 61 to separate, the separation of the two push plates 61 makes the third locking hole 69 open, so that the mouse's buttocks can be clamped at the third locking hole 69, and the mouse's tail is guaranteed to be located at the middle of the two acceleration gears 65. After the mouse's head is locked, the telescopic rod 63 is pulled to slide reversely towards the protective cover 3, the limiting shaft 64 is tightened under the action of the sliding groove 16, so that the two acceleration gears 65 are synchronously close to each other, and the mouse's tail is preliminarily clamped. The telescopic rod 63 is continuously pulled, so that the two guide shafts 67 slide along the guide grooves 68, and at the same time, the acceleration gears 65 rotate under the action of the meshing rack 66. The two acceleration gears 65 rotate, pull the mouse's tail to move reversely towards the protective cover 3, and when the guide shaft 67 slides to the inclined part in the middle of the guide groove 68, the limiting shaft 64 and the acceleration gear 65 are synchronously moved to the upper oblique side, so as to pull and lift the mouse's tail to the upper oblique side. When the guide shaft 67 slides through the inclined part of the guide groove 68 and moves to the horizontal part, the acceleration gear 65 is disengaged from the engagement of the meshing rack 66, so that the mouse's tail is automatically released, and at this time, the limiting shaft 64 is disengaged from the sliding groove 16. The characteristics of lifting the mouse's tail to the upper oblique side when artificially killing the mouse are simulated. Through the setting of the acceleration gear 65, the mouse's tail is lifted by the telescopic rod 63, and at the same time, the acceleration gear 65 rotates, so that the displacement of the mouse's tail is twice the displacement of the telescopic rod 63, so as to achieve the effect of acceleration. When the movement distance is reached, the acceleration gear 65 is disengaged, so as to avoid the mouse's body being broken and bleeding due to the continuous pulling force on the mouse's tail. Through the upward movement of the limiting shaft 64, the limiting shaft 64 is disengaged from the limiting of the sliding groove 16, so that it is more convenient to open and rotate the plate 2 for storing the mouse corpse. The mouse is killed quickly, and the mouse does not experience pain. The novice experimenter can also avoid feeling nausea and disgust.

[0036] Specifically, the two guide grooves 68 are symmetrically arranged in a half Y shape.

[0037] Specifically, each of the storage mechanisms 5 comprises a first wedge block 51, a second wedge block 52, a storage rack 53, a pressing plate 54, a spring 55, a storage gear 56, a rotating shaft 57 and an L-shaped rod 58, one end of the L-shaped rod 58 is fixedly arranged at the top of the connecting rod 62, the first wedge block 51 is fixedly arranged at the other end of the L-shaped rod 58, the second wedge block 52 is slidingly arranged at the outer side wall of the corresponding mounting plate 7, the storage rack 53 is fixedly arranged at the bottom of the second wedge block 52, the pressing plate 54 is fixedly arranged at the outer side wall of the storage rack 53, the spring 55 is arranged at the bottom of the pressing plate 54, the rotating shaft 57 is fixedly arranged at the outer side of the rotating plate 2, the storage gear 56 is fixedly arranged on the rotating shaft 57, and the two mounting plates 7 are provided with through grooves 18 for sliding of the L-shaped rod 58. By pulling the telescopic rod 63 to drive the L-shaped rod 58 to move, the L-shaped rod 58 drives the first wedge block 51 to move, the first wedge block 51 drives the second wedge block 52 to move downward, the second wedge block 52 drives the storage rack 53 to move downward, the storage rack 53 drives the storage gear 56 to rotate, the storage gear 56 drives the rotating shaft 57 to rotate, and the rotating shaft 57 drives the rotating plate 2 to rotate and open, so that the mouse corpse falls into the storage box 1. After the operation is completed, the rotating plate 2 is reset by the elastic force of the spring 55, so as to facilitate the next mouse to be killed, so as to realize that the experimenter does not need to touch the mouse with fingers, and the whole process from killing to collecting does not need to be contacted, so as to avoid that the mouse bites the experimenter and facilitate automatic storage of the mouse.

[0038] Specifically, the outer walls of the two storage racks 53 are provided with vertical grooves 9, the outer walls of the two mounting plates 7 are fixedly provided with two U-shaped positioning rods 8, and one end of each of the four U-shaped positioning rods 8 is slidingly matched with the corresponding vertical groove 9. Through the cooperation of the U-shaped positioning rod 8 and the vertical groove 9, the storage rack 53 can keep vertical sliding, and the stability of the device is increased.

[0039] Specifically, the two acceleration gears 65 are respectively engaged with the two meshing racks 66, and the two storage racks 53 are respectively engaged with the two storage gears 56.

[0040] Working principle: First, pull the second handle 11 to open the placing plate 10, put the mouse head into the protective cover 3 in the direction of the fixed plate 44, then push the telescopic rod 63 to move towards the mouse, so that the mouse head is pushed under the fixed plate 44, and the mouse head is preliminarily positioned by being clamped in the first locking hole 46 at the bottom of the fixed plate 44, then the movable plate 42 is inserted in the horizontal groove 17 by pressing the U-shaped rod 41 to drive the movable plate 42 to move downward, and the second locking hole 47 presses and locks the mouse neck, then the clamping rod 43 is clamped under the corresponding limiting block 45 by pulling the U-shaped rod 41, so as to lock the position of the movable plate 42, and since the limiting block 45 is provided in two groups with different heights, it is suitable for mice with different body sizes, the connecting rod 62, the push plate 61, the limiting shaft 64 and the acceleration gear 65 are moved synchronously by pushing the telescopic rod 63 towards the protective cover 3, the limiting shaft 64 slides in the sliding groove 16, so as to drive the two push plates 61 to separate, the third locking hole 69 is opened by the separation of the two push plates 61, so that the mouse's buttocks can be clamped in the third locking hole 69, and the mouse's tail is located between the two acceleration gears 65, after the mouse's head is locked, the telescopic rod 63 is pulled in the opposite direction of the protective cover 3, the limiting shaft 64 is tightened under the action of the sliding groove 16, so that the two acceleration gears 65 are synchronously close to each other, and the mouse's tail is preliminarily clamped, the telescopic rod 63 is continuously pulled, so that the two guide shafts 67 slide along the guide grooves 68, and at the same time the acceleration gears 65 are rotated under the action of the meshing rack 66, the two acceleration gears 65 rotate, the mouse's tail is pulled in the opposite direction of the protective cover 3, and when the guide shaft 67 slides to the inclined part in the middle of the guide groove 68, the limiting shaft 64 and the acceleration gear 65 are synchronously moved to the upper inclined part, so as to pull the mouse's tail upward obliquely, so that the mouse's neck is dislocated to death, and when the guide shaft 67 slides over the inclined part of the guide groove 68 and moves to the horizontal part, the acceleration gear 65 is disengaged from the meshing of the meshing rack 66, so that the mouse's tail is automatically released, and at this time the limiting shaft 64 is disengaged from the sliding groove 16, the L-shaped rod 58 is moved by pulling the telescopic rod 63, the first wedge block 51 is moved by the movement of the L-shaped rod 58, the second wedge block 52 is moved downward by the movement of the first wedge block 51, the storage rack 53 is moved downward by the movement of the second wedge block 52, the storage gear 56 is rotated by the movement of the storage rack 53, the rotating plate 2 is rotated and opened by the rotation of the storage gear 56, so that the mouse corpse falls into the storage box 1, and when it is needed to take out later, the opening and closing door 14 can be opened by pulling the first handle 15.

[0041] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mouse cervical dislocation killing device, comprising a storage box (1), the left side of the storage box (1) is provided with a hinged door (14), and a first handle (15) is fixedly arranged on the hinged door (14), characterized in that: The storage box (1) is provided without cover, and the L-shaped plate (19) is fixedly arranged on the right side of the storage box (1), two storage mechanisms (5) are arranged on the L-shaped plate (19), two rotating plates (2) are arranged on the top of the storage box (1), two sliding grooves (16) are arranged on the rotating plates (2), horizontal grooves (17) are arranged on the top of the rotating plates (2), protective covers (3) are arranged on the top of the rotating plates (2), locking mechanisms (4) are arranged in the protective covers (3), placing plates (10) are arranged on the top of the protective covers (3), second handles (11) are fixedly arranged on the top of the placing plates (10), two mounting plates (7) are arranged on the right side of the protective covers (3), quick killing mechanisms (6) are arranged between the mounting plates (7), and cover plates (12) are arranged on the top of the mounting plates (7). The quick killing mechanism comprises two push plates (61), two connecting rods (62), an extension rod (63), two limiting shafts (64), two acceleration gears (65), two meshing racks (66), two guide shafts (67), two guide grooves (68) and third locking holes (69), the two guide grooves (68) are arranged on the inner side walls of the two mounting plates (7), one end of each of the two guide shafts (67) is slidingly arranged in the two guide grooves (68), the two connecting rods (62) are fixedly arranged at the other ends of the two guide shafts (67), the two push plates (61) are fixedly arranged at one end of each of the two connecting rods (62), the extension rod (63) is fixedly arranged at the other end of each of the two connecting rods (62), the two limiting shafts (64) are fixedly arranged at the bottom of each of the two connecting rods (62), the bottom of each of the two limiting shafts (64) is slidingly arranged in the two sliding grooves (16), the two acceleration gears (65) are rotatably arranged on the two limiting shafts (64), and the two meshing racks (66) are fixedly arranged on the inner side walls of the two mounting plates (7). Each of the storage mechanisms (5) comprises a first wedge block (51), a second wedge block (52), a storage rack (53), an extrusion plate (54), a spring (55), a storage gear (56), a rotating shaft (57) and an L-shaped rod (58), one end of the L-shaped rod (58) is fixedly arranged at the top of the connecting rod (62), the first wedge block (51) is fixedly arranged at the other end of the L-shaped rod (58), the second wedge block (52) is slidingly arranged on the outer side wall of the corresponding mounting plate (7), the storage rack (53) is fixedly arranged at the bottom of the second wedge block (52), the extrusion plate (54) is fixedly arranged on the outer side wall of the storage rack (53), the spring (55) is arranged at the bottom of the extrusion plate (54), the rotating shaft (57) is fixedly arranged on the outer side of the rotating plate (2), the storage gear (56) is fixedly arranged on the rotating shaft (57), and the through groove (18) for sliding of the L-shaped rod (58) is arranged on each of the two mounting plates (7). Both the sliding grooves (16) are half Y-shaped and symmetrically arranged; The locking mechanism (4) comprises a U-shaped rod (41), a movable plate (42), two clamping rods (43), a fixed plate (44), four limiting blocks (45), a first locking hole (46) and a second locking hole (47). The fixed plate (44) is fixedly arranged on the inner wall of the protective cover (3). The four limiting blocks (45) are fixed on the two sides of the fixed plate (44) respectively. The movable plate (42) is slidably arranged on the inner side wall of the protective cover (3). The two clamping rods (43) are movably inserted on the movable plate (42). The U-shaped rod (41) is fixedly arranged on the top of the two clamping rods (43). The first locking hole (46) is arranged at the bottom end of the fixed plate (44). The second locking hole (47) is arranged at the bottom end of the movable plate (42). The first locking hole (46) and the second locking hole (47) are both semicircular, and the first locking hole (46) is smaller than the second locking hole (47). Both the guide grooves (68) are half Y-shaped and symmetrically arranged.

2. The mouse cervical dislocation device of claim 1, wherein: The movable plate (42) is inserted and matched with the two horizontal grooves (17).

3. The mouse cervical dislocation device of claim 1, wherein: The outer wall of each of the two storage racks (53) is provided with a vertical groove (9), and the outer wall of each of the two mounting plates (7) is fixedly provided with two U-shaped positioning rods (8), and one end of each of the four U-shaped positioning rods (8) is slidably matched with the corresponding vertical groove (9).

4. The mouse cervical dislocation device of claim 3, wherein: The two acceleration gears (65) are respectively engaged with the two meshing racks (66), and the two storage racks (53) are respectively engaged with the two storage gears (56).

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