Auxiliary device for explosion experiment

Abstract

The utility model relates to the technical field of experiment auxiliary equipment, in particular to an auxiliary device for an explosion experiment. The first conical barrel is provided with a first end and a second end, the first end and the second end are opened, the diameter of the opening of the first end is smaller than that of the opening of the second end, the second end is detachably connected with one end of the barrel, and a first positioning hole is formed in the first conical barrel and used for exposing a preset part of the head of an experimental mouse; the second conical barrel is arranged on the first conical barrel in a sleeving mode, a second positioning hole is formed in the side wall of the second conical barrel, the second positioning hole corresponds to the first positioning hole in position, and the area of the second positioning hole is smaller than that of the first positioning hole. The experimental mouse head exposure device has the advantages that when the experimental mouse head exposure device is used, the second positioning hole covers the first positioning hole, so that the head part of an experimental mouse is finely exposed, the part needing to be researched is accurately exposed, and subsequent research on explosion impact injury is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental auxiliary equipment technical field, concretely relates to an auxiliary device for explosion experiment. BACKGROUND

[0002] With the development of modern high technology, the risk of explosion is increasing. The impact injury caused by the shock wave of explosive has seriously threatened the fighting capacity of soldiers on the battlefield and the normal life and work of civilians. At the same time, among various impact injuries caused by the shock wave of explosion, the head explosion impact injury is the most serious, such as craniocerebral explosion injury will cause cognitive and motor function impairment, eye explosion injury will cause visual decline or loss, etc. Therefore, the experimental research on local structure explosion impact injury can help us understand the specific characteristics of explosion impact injury more clearly, and help researchers to conduct more specific research on the explosion impact injury mechanism and protection measures of brain, eye and other independent organs or tissues, and provide relevant theoretical basis for the prevention and treatment of explosion impact injury and its complications.

[0003] At present, the most commonly used model animal for animal experimental research is mouse. In the experimental process, different target parts of the experimental mouse, such as forehead and eye, are subjected to explosion impact modeling according to different research purposes, and the characteristics of the impact injury of the local organs or structures of the experimental mouse after explosion are observed and studied. It is a key link in experimental research to ensure the good fixation of the experimental mouse during the experiment. In the animal experimental research of head explosion impact injury, the experimental mouse fixation device is usually very simple. Most of the research directly places the experimental mouse body at a certain distance in front of the explosion shock wave generating device to perform explosion impact, without shielding the rest of the body of the experimental mouse. Some more detailed experimental research will shield the experimental mouse body with polyethylene or explosion-proof material (bulletproof vest, etc.), and place the target injury site (a certain range, not accurate exposure) such as head at a certain distance in front of the explosion shock wave generating device. It can be seen that there is a very obvious defect in the above experimental research, that is, during the explosion impact of the head injury site by the explosion shock wave, the lungs, heart and aorta are usually compressed, leading to hypoxia and rapid increase of blood pressure, and then damaging the cerebral blood vessels. At the same time, since the head injury site is also directly exposed to the explosion, it is difficult to distinguish the defects of the injury site caused by local structure damage and the defects of the injury site caused by the direct impact of the explosion on the head injury site. Therefore, at present, the device in the animal experimental research of head explosion impact injury cannot accurately expose the research site. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the problems in the prior art, and provides an auxiliary device for explosion experiment, which can accurately expose the part of the head of the experimental mouse for research.

[0005] The technical scheme of the utility model discloses

[0006] An auxiliary device for explosion experiment, comprising

[0007] The barrel body is open at both ends.

[0008] The first conical barrel has a first end and a second end, the first end and the second end are open, the diameter of the first end opening is smaller than the diameter of the second end opening, the second end is detachably connected with one end of the barrel body, a first positioning hole is formed in the first conical barrel, and the first positioning hole is used for exposing a preset part of the head of the experimental mouse.

[0009] The second conical barrel is sleeved on the first conical barrel, a second positioning hole is formed in the side wall of the second conical barrel, the position of the second positioning hole corresponds to the position of the first positioning hole, and the area of the second positioning hole is smaller than the area of the first positioning hole.

[0010] Preferably, the first positioning hole is provided with a plurality of first positioning holes, the plurality of first positioning holes are arranged at different positions on the first conical barrel, the areas of the plurality of first positioning holes are different, and the plurality of first positioning holes are used for exposing different preset parts of the head of the experimental mouse.

[0011] Preferably, the first positioning hole is provided with three first positioning holes, the three first positioning holes are a first hole, a second hole and a third hole, the first hole and the third hole are circular holes, the first hole is close to the second end, the second hole is close to the first end, the first hole and the second hole are arranged on one side of the first conical barrel, the third hole is arranged on the other side of the first conical barrel, and the diameter of the third hole is greater than the diameter of the first hole.

[0012] Preferably, the second conical barrel is provided with a plurality of second conical barrels, and the positions of the second positioning holes in the plurality of second conical barrels correspond to the positions of the plurality of first positioning holes one by one.

[0013] Preferably, the second positioning hole in each second conical barrel is provided with a plurality of second positioning holes, the plurality of second positioning holes are circular holes, the plurality of second positioning holes are arranged in a staggered manner on the circumference of the second conical barrel, the spacing between two adjacent second positioning holes along the generatrix direction of the second conical barrel is zero, and the sum of the diameters of the plurality of second positioning holes is equal to the length of the first positioning hole in the generatrix direction of the second conical barrel.

[0014] Preferably, the second positioning hole is three, and the included angle between two adjacent second positioning holes along the radial direction of the second conical barrel is 120°.

[0015] Preferably, the second conical cylinder has a third end and a fourth end, the third end and the fourth end are open, the diameter of the fourth end opening is smaller than the diameter of the third end opening, a plurality of second connecting holes are arranged on the side wall of the second conical cylinder close to the third end, the plurality of second connecting holes are arranged in an annular array, bolts are arranged in the second connecting holes, the bolts are threadedly connected with the second connecting holes, and the bottom of the bolts abuts against the side wall of the first conical cylinder.

[0016] Preferably, the side wall of the first conical cylinder close to the first end is provided with two fixing holes, and a fixing rope is arranged in the two fixing holes to fix the teeth of the experimental mouse.

[0017] Preferably, the detachable connection structure of the second end and the cylinder body comprises:

[0018] An annular ring, one end of which is fixed to the second end, and the other end is threadedly connected or clamped to one end of the cylinder body.

[0019] Compared with the prior art, the auxiliary device for explosion experiment has the following beneficial effects:

[0020] The device is used to solve the problem of fine exposure of the research part of the experimental mouse. When the device is used, the body of the experimental mouse is first fixed in the cylinder body, and then the head of the experimental mouse is covered by the first conical cylinder. On one hand, the first conical cylinder can fix the head of the experimental mouse, and on the other hand, the first positioning hole on the first conical cylinder can expose the head part of the experimental mouse. Meanwhile, the second conical cylinder is sleeved on the first conical cylinder, the second conical cylinder is provided with a second positioning hole corresponding to the position of the first positioning hole and having a smaller exposure area, and the second positioning hole covers the first positioning hole during use, so as to adjust the fine exposure of the head part of the experimental mouse. The device can accurately expose the research part, which is convenient for subsequent research on explosion impact injury and solves the problem of inaccurate damage to the head of the experimental mouse caused by explosion in the past (it is uncertain whether the explosion is caused by other parts to indirectly damage the research part). BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The figure is a structural schematic diagram of the utility model;

[0022] Figure 2 The figure is a structural schematic diagram of the first conical cylinder of the utility model;

[0023] Figure 3 The figure is an unfolded schematic diagram of the second conical cylinder of the utility model;

[0024] Figure 4 The figure is a top view of the second conical cylinder of the utility model;

[0025] Figure 5 Figure 1 is a structural schematic diagram of a fixing device for an existing explosion experiment of a laboratory mouse. DETAILED DESCRIPTION

[0026] The technical solutions in the present application will be described clearly and exhaustively below with reference to the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B: "and / or" in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone, in addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0027] Hereinafter, the terms "first" and "second" are only used for description purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0028] The utility model provides a kind of auxiliary device for explosion experiment, the structure schematic diagram of Figures 1 to 5 of the utility model will be described below, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.

[0029] At present, in the animal experimental research of explosion impact injury, the laboratory mouse fixing device is usually very simple, mostly using a reel to cover the body of the laboratory mouse, as shown in Figure 5 Although this can fix it, the head of the laboratory mouse is completely exposed to the air without any shielding, and it is difficult to distinguish the injury site defects caused by brain trauma such as brain vascular injury and the injury site defects caused by direct impact of explosion after explosion. To solve the above problems, the device provides a kind of auxiliary device for explosion experiment, which can accurately expose the research site.

[0030] Example 1

[0031] As shown in Figure 1 The utility model provides a kind of auxiliary device for explosion experiment, mainly solves the problem of fine exposure of laboratory mouse explosion research site, including: the hollow structure of cylinder 1, the both ends of cylinder 1 are open, cylinder 1 is equivalent to the existing technology Figure 5The utility model provides a kind of experimental mouse head exposure device, including cylinder body 1, the experimental mouse is sleeved in cylinder body 1 when using, the inside of cylinder body 1 can be set some fixed structure and fix the body of experimental mouse, avoid its body to sway when exploding, still include: first conical cylinder 2, first positioning hole, second conical cylinder 3, second positioning hole.First conical cylinder 2 is hollow structure, first conical cylinder 2 has first end and second end, first end, second end opening, the diameter of first end opening is less than the diameter of second end opening, second end is detachably connected with one end of cylinder body 1, first conical cylinder 2 is mainly for the shape of experimental mouse head, experimental mouse head is sleeved in first conical cylinder 2 when using, first conical cylinder 2 can fix the head of experimental mouse, avoid its head to swing when exploding, first positioning hole is set on first conical cylinder 2, first positioning hole is used to expose experimental mouse head preset site, the connecting position of first conical cylinder 2 and cylinder body 1 can move, by adjusting the position of first conical cylinder 2, the site of first positioning hole can be exposed experimental mouse head, can expose the part of experimental mouse head according to research needs;Second conical cylinder 3 is sleeved on first conical cylinder 2, second positioning hole is set on the side wall of second conical cylinder 3, second positioning hole is corresponding with the position of first positioning hole, the area of second positioning hole is less than the area of first positioning hole, to adjust more delicate exposure site, the utility model still sets up second conical cylinder 3 on first conical cylinder 2, can adjust the position of second conical cylinder 3 on first conical cylinder 2, to adjust delicate exposure experimental mouse head site.The utility model is used when, first, the body of experimental mouse is fixed in cylinder body 1, then the head of experimental mouse is sleeved by first conical cylinder 2, on the one hand, first conical cylinder 2 can fix the head of experimental mouse, on the other hand, first positioning hole on first conical cylinder 2 can expose the site of the head of experimental mouse, while second conical cylinder 3 is sleeved on first conical cylinder 2, second positioning hole is set on second conical cylinder 3, and the area of second positioning hole is less than the area of first positioning hole, when using, second positioning hole covers on first positioning hole, to adjust delicate exposure experimental mouse head site, the utility model can realize accurate exposure to the site needed to research, convenient for subsequent research of explosion impact injury.

[0032] In order to better fix the head of the experimental mouse, avoid the head swinging caused by the explosion, further, the first conical barrel 2 is provided with two fixing holes 24 on the side wall close to the first end, and a fixing rope is arranged in the two fixing holes 24, the fixing rope is used for fixing the teeth of the experimental mouse. The fixing rope is passed through the incisors of the experimental mouse, and after the first conical barrel 2 is sleeved on the head of the experimental mouse, the two ends of the fixing rope are passed through the two fixing holes 24 and then bound, so as to fix the head of the experimental mouse, and the movement of the experimental mouse can be avoided. In addition, in order to better fix the head of the experimental mouse, two first connecting holes 25 are arranged on the side wall of the first conical barrel 2, the two first connecting holes 25 are symmetrically arranged, a rope can be arranged between the two first connecting holes 25, and the head of the experimental mouse can be further bound and fixed.

[0033] Further, the detachable connection structure of the second end and the barrel 1 includes an annular ring, one end of the annular ring is fixed with the second end, and the other end is threadedly connected or clamped with one end of the barrel 1, that is, the annular ring can be threadedly connected with the barrel 1, the clamping can adopt a structure such as a clamp and a hoop to connect the barrel 1 and the annular ring together, and at the same time, the barrel 1 and the annular ring can be fixed together by using screws and the like to realize the detachable connection of the annular ring and the barrel 1, so as to adjust the position of the first positioning hole exposed according to the needs. Among them, the appropriate detachable connection structure can be selected according to the actual needs.

[0034] Embodiment 2

[0035] As a further improved scheme based on embodiment 1, in order to more accurately expose the eyes, forehead or other parts of the experimental mouse, further, the first positioning hole is provided with a plurality of first positioning holes, the plurality of first positioning holes are arranged at different positions on the first conical barrel 2, and the areas of the plurality of first positioning holes are different, and the plurality of first positioning holes are used for exposing different preset parts of the head of the experimental mouse.

[0036] Further, the first positioning hole is provided with three, and the three first positioning holes are respectively a first hole 21, a second hole 22, and a third hole 23, which are three types of first positioning holes. The first hole 21 is provided with two, and the two first holes 21 are symmetrically arranged on the side wall of the first conical cylinder 2, close to the second end, and are circular holes, which can be used to expose the eyes or other parts of the experimental mouse; the second hole 22 is arranged on the side wall of the first conical cylinder 2, close to the first end, and in this embodiment, the second hole 22 is formed by two circular holes that are partially coincident and pass through, and in actual application, it can be replaced by other shapes such as a long strip according to needs, and the length of the second hole 22 of the device is longer than that of the first hole 21, which can be used to expose the forehead or other parts of the experimental mouse; the third hole 23 is arranged on the side wall of the first conical cylinder 2, and is a circular hole with a diameter larger than that of the first hole 21, in order to adapt to the body size of various experimental mice, and considering that the first hole 21 and the second hole 22 may not cover the position to be exposed, the third hole 23 with a larger diameter is arranged, which is located on the other side of the first hole 21 and the second hole 22, and can expose a larger position, which can adapt to experimental mice of different sizes and also expose other positions of the head of the experimental mouse. The device exposes different parts of the head of the experimental mouse by arranging the first hole 21, the second hole 22, and the third hole 23 on the first conical cylinder 2, which can adapt to experimental mice of different sizes and expose the required parts, and has wider adaptability and more flexible use. The first hole 21, the second hole 22, and the third hole 23 can be used to expose the eyes, forehead, or other parts of the head of the experimental mouse, and the specific adjustment can be made according to research needs.

[0037] Further, the second conical cylinder 3 is provided with a plurality of second positioning holes, and the positions of the second positioning holes on the plurality of second conical cylinders 3 correspond one by one to the positions of the plurality of first positioning holes. The second conical cylinder 3 can be three, and the positions of the second positioning holes on the three second conical cylinders 3 correspond to the first hole 21, the second hole 22, and the third hole 23 respectively. One of the three second conical cylinders 3 can cover one of the first holes 21 for fine exposure, one can cover the second hole 22 for fine exposure, and the last one can cover the third hole 23 for fine exposure, and in actual use, one second conical cylinder 3 can be selected to be sleeved on the first conical cylinder 2 according to needs.

[0038] In this embodiment, other structures are the same as those of Embodiment 1, and only optimization is made to Embodiment 1.

[0039] Embodiment 3

[0040] As a further improvement based on the embodiment 2, in order to make the second positioning hole can cover each position of the first hole 21 or the second hole 22 or the third hole 23, further, the second positioning hole on each second tapered barrel 3 is provided with a plurality of, the plurality of second positioning holes are circular holes 31, the plurality of second positioning holes are arranged in a radial annular array on the circumference of the second tapered barrel 3, and as shown in Figure 3 The pitch interval of the adjacent two second positioning holes in the generatrix direction of the second tapered barrel 3 is zero, and the sum of the diameters of the plurality of second positioning holes is equal to the length of the first positioning hole in the generatrix direction of the second tapered barrel 3. As can be seen from Figure 3 and Figure 4 The second positioning hole on each second tapered barrel 3 is distributed with a pitch interval of zero, and the sum of the diameters of the plurality of second positioning holes is equal to the length of the first hole 21 or the second hole 22 or the third hole 23 in the generatrix direction, which is equivalent to dividing the length of the first hole 21 or the second hole 22 or the third hole 23 in the generatrix direction into several equal parts. If the several second positioning holes are located on the same generatrix, they can completely cover the length of the first hole 21 or the second hole 22 or the third hole 23 in the generatrix direction. In this way, the exposed position of the second positioning hole in the generatrix direction of the second tapered barrel 3 can be adjusted as needed, and the second tapered barrel 3 can be rotated to adjust the exposed position of the second positioning hole in the circumferential direction of the second tapered barrel 3, thereby comprehensively adjusting the position of the second positioning hole covering the first hole 21 or the second hole 22 or the third hole 23, and the plurality of second positioning holes can cover each position of the first hole 21 or the second hole 22 or the third hole 23.

[0041] As shown in Figure 4 Further, the second positioning hole is three, and the included angle of the adjacent two second positioning holes in the radial direction of the second tapered barrel 3 is 120°. The second positioning hole is selected to be three, on the one hand considering the size of the area to be accurately exposed, and on the other hand avoiding the part of the first hole 21 or the second hole 22 or the third hole 23 not covered when the second tapered barrel 3 is sleeved on the first tapered barrel 2. Therefore, the second positioning hole is selected to be three, which is the best effect, which can ensure that the exposed area is not too large or too small, and at the same time can avoid that the second positioning hole cannot cover other unexposed holes. Among them, the diameters of the plurality of second positioning holes on the same second tapered barrel 3 are equal, but the diameters of the second positioning holes on the three second tapered barrels 3 are not consistent, because three second positioning holes are provided on each second tapered barrel 3, and the diameters of the first hole 21 or the second hole 22 or the third hole 23 are not equal, so the diameters of the second positioning holes on the three second tapered barrels 3 are not consistent.

[0042] As shown in Figure 1As shown, further, the second tapered cylinder 3 has a third end and a fourth end, the third end and the fourth end are open, the diameter of the fourth end opening is smaller than that of the third end opening, a plurality of second connecting holes 32 are arranged on the side wall of the second tapered cylinder 3 close to the third end, and in practice, three second connecting holes 32 can be arranged, the plurality of second connecting holes 32 are arranged in an annular array, a bolt is arranged in the second connecting hole 32, the bolt is threadedly connected with the second connecting hole 32, and the bottom of the bolt abuts against the side wall of the first tapered cylinder 2. Figure 1 、 Figure 2 As can be seen from the first tapered cylinder 2, the first tapered cylinder 2 is provided with an annular groove at a position close to the second end in the circumferential direction, in use, the second tapered cylinder 3 is sleeved on the first tapered cylinder 2, the three second connecting holes 32 are arranged at the position of the annular groove, after the second tapered cylinder 3 is rotated to a suitable position (the specific exposed position is adjusted), the bolt is installed on the three second connecting holes 32, so that the bottom of the bolt is tightly abutted against the side wall of the first tapered cylinder 2, thereby the second tapered cylinder 3 is sleeved and fixed on the first tapered cylinder 2.

[0043] In the embodiment, other structures are the same as those of the embodiment 2, and only the embodiment 2 is optimized.

[0044] The device is used for solving the problem of fine exposure of the explosion research part of the experimental mouse, in use, the body of the experimental mouse is first fixed in the cylinder body, then the head of the experimental mouse is sleeved by the first tapered cylinder, on one hand, the head of the experimental mouse can be fixed by the first tapered cylinder, on the other hand, the head part of the experimental mouse can be exposed by the first positioning hole on the first tapered cylinder, meanwhile, the second tapered cylinder is sleeved on the first tapered cylinder, the second positioning hole corresponding to the position of the first positioning hole and having a smaller exposed area is arranged on the second tapered cylinder, in use, the second positioning hole covers the first positioning hole, thereby the head part of the experimental mouse is adjusted and exposed, the device can accurately expose the research part of the head of the experimental mouse, is convenient for subsequent research on the explosion impact injury, and solves the inaccurate way (it is uncertain whether the explosion is indirectly caused to the research part through other parts) of damaging the head of the experimental mouse caused by the explosion in the past.

[0045] The above disclosure is only several specific embodiments of the device, however, the embodiments of the device are not limited to this, any change that can be thought of by any person skilled in the art should fall within the protection scope of the device.

Claims

1. An auxiliary device for explosion experiments, characterized by, The utility model relates to a mouse head fixing device, including: a barrel (1) is opened to both ends, a first conical barrel (2) has a first end and a second end, the first end is opened, the diameter of the second end is opened is less than the diameter of the first end, the second end is detachably connected with one end of the barrel (1), a first positioning hole is opened to the first conical barrel (2), and the first positioning hole is used to expose the preset part of the head of experimental mouse, a second conical barrel (3) is sleeved on the first conical barrel (2), a second positioning hole is opened to the sidewall of the second conical barrel (3), the position of the second positioning hole corresponds with the first positioning hole, and the area of the second positioning hole is less than the area of the first positioning hole.

2. The auxiliary device for explosion experiments according to claim 1, characterized in that The first positioning hole is provided with a plurality of first positioning holes, the positions of the plurality of first positioning holes are different on the first conical barrel (2), the areas of the plurality of first positioning holes are different, and the plurality of first positioning holes are used to expose different preset parts of the head of experimental mouse.

3. An auxiliary device for explosion experiments according to claim 2, characterized in that The first positioning hole is provided with three first positioning holes, the first hole (21), the second hole (22) and the third hole (23) are circular holes, the first hole (21) is close to the second end, the second hole (22) is close to the first end, the first hole (21) and the second hole (22) are opened to one side of the first conical barrel (2), the third hole (23) is opened to the other side of the first conical barrel (2), and the diameter of the third hole (23) is greater than the diameter of the first hole (21).

4. The auxiliary device for explosion experiments according to claim 2, characterized in that The second conical barrel (3) is provided with a plurality of second conical barrels (3), and the positions of the second positioning holes on the plurality of second conical barrels (3) correspond to the positions of the plurality of first positioning holes one by one.

5. An auxiliary device for explosion experiments according to claim 4, characterized in that The second positioning hole on each second conical barrel (3) is provided with a plurality of second positioning holes, the plurality of second positioning holes are circular holes, the plurality of second positioning holes are arranged in a staggered manner on the circumference of the second conical barrel (3), the spacing between adjacent two second positioning holes along the generatrix direction of the second conical barrel (3) is zero, and the sum of the diameters of the plurality of second positioning holes is equal to the length of the first positioning hole in the generatrix direction of the second conical barrel (3).

6. An auxiliary device for explosion experiments according to claim 5, characterized in that The second positioning hole is three, and the included angle between adjacent two second positioning holes along the radial direction of the second conical barrel (3) is 120 DEG.

7. The auxiliary device for explosion experiments according to claim 1, characterized in that The second conical barrel (3) has a third end and a fourth end, the third end is opened, the diameter of the fourth end is opened is less than the diameter of the third end, a plurality of second connecting holes (32) are opened to the sidewall close to the third end of the second conical barrel (3), the plurality of second connecting holes (32) are arranged in an annular array, a bolt is arranged in the second connecting hole (32), the bolt is in threaded connection with the second connecting hole (32), and the bottom of the bolt abuts against the sidewall of the first conical barrel (2).

8. The auxiliary device for explosion experiments according to claim 1, characterized in that The first conical cylinder (2) is provided with two fixing holes (24) on the side wall close to the first end, a fixing rope is arranged in the middle of the two fixing holes (24), and the fixing rope is used for fixing the teeth of the experimental mouse.

9. The auxiliary device for explosion experiments according to claim 1, characterized in that The detachable connection structure of the second end and the cylinder body (1) comprises: An annular ring, one end of which is fixed with the second end, and the other end is threadedly connected or clamped with one end of the cylinder body (1).

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