Squeezing impact injury simulation device

Abstract

The invention discloses an extrusion impact injury simulation device, which comprises a test cabin body arranged on a rack, and a stress object is arranged in the test cabin body; a first bracket is arranged on the rack, and a simulation impact mechanism and a simulation extrusion mechanism for impact force are arranged on the first bracket; the simulation extrusion mechanism is used for applying extrusion force to a stressed object in the test cabin body or the simulation impact mechanism is used for applying impact force to the stressed object in the test cabin body; and a negative pressure machine for adjusting the air pressure in the test cabin body is arranged on the rack. According to the extrusion and impact injury simulation device, the structure is simple, impact force, extrusion force and impact wave injury caused by battlefield injury can be achieved, and the negative pressure machine is arranged to adjust the pressure intensity in the test cabin body to simulate the damage of impact or extrusion to an object under different waves; furthermore, the impact piece placed in the sleeve is rushed out of the sleeve through the gas exhausted from the gas storage bottle and impacts on the stressed object, so that the effect of impact waves on the stressed object is simulated while impact is simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of battlefield injury simulation devices, in particular to a compression and impact injury simulation device. Background Art

[0002] Extrusion collision tests can be used to simulate the extrusion and impact conditions of products, people or animals. Specific extrusion injuries can be the collapse of industrial equipment, vehicles, machine tools, buildings, etc., and impact conditions include being hit by bricks, stones, tools, sticks, etc.

[0003] Existing extrusion and collision simulation experiments generally include extrusion equipment and impact equipment, which cannot simulate the extrusion and impact conditions at different altitudes, and further cannot simulate the conditions of being subjected to shock waves. Summary of the Invention

[0004] In order to solve the technical problems existing in the background technology, the present invention provides a compression and impact injury simulation device.

[0005] The present invention provides a device for simulating crush and impact injuries, comprising a test chamber mounted on a frame, wherein a force-bearing object is provided in the test chamber;

[0006] The frame is provided with a first bracket, and the first bracket is provided with a simulation impact mechanism and a simulation extrusion mechanism of the impact force;

[0007] The simulated squeezing mechanism applies squeezing force to the load-bearing object in the test chamber, or the simulated impact mechanism applies impact force to the load-bearing object in the test chamber;

[0008] The frame is provided with a negative pressure machine for adjusting the air pressure in the test cabin.

[0009] As a further optimized solution of the present invention, a sleeve is provided at one end of the test chamber away from the force-bearing object, and the sleeve has a part located inside the test chamber and a part located outside the test chamber. A connecting piece is provided at one end of the sleeve located outside the test chamber, and the simulated extrusion mechanism or the simulated impact mechanism is connected to the connecting piece.

[0010] As a further optimized solution of the present invention, the simulated extrusion mechanism includes a telescopic part installed on the first bracket, the telescopic end of the telescopic part is connected to an extrusion rod, the end of the extrusion rod away from the telescopic part is provided with an extrusion head, the extrusion rod is installed in the sleeve for transverse sliding, and a sealing part is provided on the telescopic part, which is connected to the connecting part and seals the gap between the sleeve and the extrusion rod.

[0011] As a further optimized solution of the present invention, the extrusion head is one of a conical head, a round head, and a square head.

[0012] As a further optimized solution of the present invention, the extrusion rod is detachably mounted on the telescopic end of the telescopic member.

[0013] As a further optimized solution of the present invention, the simulated impact mechanism includes a connecting block installed on the first bracket and connected to the connecting piece, the connecting block has a guide channel connected to the center hole of the sleeve, the connecting block is provided with a gas cylinder, the sleeve is provided with an impact piece, the gas cylinder is provided with compressed gas, the gas outlet of the gas cylinder is provided with a valve, the compressed gas discharged from the gas cylinder applies an impact force to the impact piece so that the impact piece impacts the force-bearing object and the gas discharged from the gas cylinder applies a shock wave to the force-bearing object.

[0014] As a further optimized solution of the present invention, the distance between the connecting block and the connecting piece can be adjusted.

[0015] As a further optimized solution of the present invention, a slide plate is provided on the first bracket, and the simulated extrusion mechanism and the simulated impact mechanism are both installed on the slide plate. The slide plate is slid to make the simulated extrusion mechanism or the simulated impact mechanism face the connecting member.

[0016] As a further optimized solution of the present invention, it also includes a second bracket slidably mounted on the frame, the distance between the second bracket and the test chamber body can be adjusted, a sealing disk is provided on the second bracket, a fixed plate is installed on the sealing disk, the force-bearing object is installed on the fixed plate, and the second bracket is moved so that the sealing disk seals the test chamber body.

[0017] As a further optimized solution of the present invention, a turntable is mounted on the sealing disk for transverse rotation, and the fixing plate is mounted on the turntable.

[0018] As a further optimized solution of the present invention, a support shaft is installed on the sealing disk, the fixed plate is longitudinally rotatably installed on the support shaft, and an adjusting member for adjusting the angle of the fixed plate relative to the sealing disk is provided between the sealing disk and the fixed plate.

[0019] The present invention proposes a device for simulating crush and impact injuries, which has a simple structure and can realize the impact force, crushing force, and shock wave damage caused by battlefield injuries. The pressure in the test chamber is adjusted by setting a negative pressure device to simulate the damage caused by impact or crushing of objects during different sea waves. Furthermore, the gas discharged from the gas storage cylinder causes the impact member placed in the casing to be pushed out of the casing and impact the object receiving the force, thereby simulating the impact and the effect of the shock wave on the object receiving the force.

[0020] Furthermore, the angle of the force-receiving object relative to the sleeve can be adjusted by the adjusting member, thereby further facilitating the simulation of the angle of the force-receiving object relative to the component applying the force, thereby increasing the realism of the simulation.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is the main view of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the simulated impactor of the present invention;

[0025] Figure 4 This is a schematic diagram of the simulated extrusion structure of the present invention;

[0026] In the figure: 1. frame; 2. force-bearing object; 3. test chamber; 30. observation window; 4. first bracket; 5. negative pressure machine; 6. sleeve; 7. connecting part; 8. slide plate; 9. telescopic part; 10. extrusion rod; 11. extrusion head; 12. sealing part; 13. connecting block; 14. impact part; 15. gas cylinder; 16. second bracket; 17. sealing disk; 18. fixing plate; 19. turntable; 20. support shaft; 21. adjustment part; 22. handle. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0028] like Figures 1-4 The device for simulating crush and impact injuries shown in the figure comprises a test chamber 3 fixedly mounted on a frame 1, a force-bearing object 2 is provided in the test chamber 3, and a pressure sensor is provided on the force-bearing object 2 for detecting the external force received by the force-bearing object 2;

[0029] The frame 1 is provided with a first bracket 4, and the first bracket 4 is provided with a simulation impact mechanism and a simulation extrusion mechanism of the impact force;

[0030] The simulated squeezing mechanism applies squeezing force to the load-bearing object 2 in the test chamber 3 or the simulated impact mechanism applies impact force to the load-bearing object 2 in the test chamber 3;

[0031] A negative pressure machine 5 for adjusting the air pressure in the test chamber 3 is provided on the frame 1 .

[0032] It should be noted that a pressure sensor is provided in the test chamber 3 for detecting the pressure of the test chamber 3. The pressure in the test chamber 3 is adjusted by the negative pressure machine 5 to simulate different air pressures at different altitudes. Three observation windows 30 are provided on the test chamber 3 for observation. A camera is provided outside one observation window 30 for recording the situation inside the test chamber 3. The other two observation windows 30 are used to measure the speed of the impact part 14 of the simulated impact mechanism.

[0033] In order to increase the detection accuracy, a lighting lamp is provided in the test chamber 3 .

[0034] In order to facilitate the connection between the simulated extrusion mechanism and the simulated impact mechanism, a sleeve 6 is provided at the end of the test chamber 3 away from the force-bearing object 2. The sleeve 6 has a part located inside the test chamber 3 and a part located outside the test chamber 3. One end of the sleeve 6 located outside the test chamber 3 is provided with a connecting piece 7. The sleeve 6 is opposite to the impact piece 14. The connecting piece 7 can be a flange, etc. The simulated extrusion mechanism or the simulated impact mechanism is connected to the connecting piece 7, and the simulated extrusion mechanism or the simulated impact mechanism is connected to the connecting piece 7 according to actual conditions to perform extrusion simulation or impact simulation.

[0035] Specifically, a slide 8 is provided on the first bracket 4, and the simulated squeezing mechanism and the simulated impact mechanism are both mounted on the slide 8. Sliding the slide 8 causes the simulated squeezing mechanism or the simulated impact mechanism to face the connecting member 7. This facilitates the user to adjust the connection between the simulated squeezing mechanism and the connecting member 7 or the squeezing mechanism and the connecting member 7 according to actual conditions.

[0036] Preferably, the first bracket 4 is slidably mounted on the frame 1 , and the distance between the first frame 1 and the test chamber 3 is adjustable, so that the user can easily install and disassemble the simulated extrusion mechanism and the simulated impact mechanism.

[0037] Specifically, the simulated extrusion mechanism includes a telescopic member 9 mounted on the slide 8 on the first bracket 4. The telescopic member 9 can be an electric cylinder, a pneumatic cylinder or other components in the prior art. In this embodiment, the telescopic member 9 is an electric cylinder. The telescopic end of the telescopic member 9 is connected to an extrusion rod 10. The end of the extrusion rod 10 away from the telescopic member 9 is provided with an extrusion head 11. The extrusion rod 10 is detachably mounted on the telescopic end of the telescopic member 9 by a thread. The extrusion head 11 is mounted on the extrusion head 11 by a thread. The extrusion rod 10 is installed in the sleeve in a transverse sliding manner. A seal 12 is provided on the telescopic member 9. The seal 12 is connected to the connector 7 and seals the gap between the sleeve 6 and the extrusion rod 10. When simulating the extrusion of the stressed object 2, the telescopic end of the telescopic member 9 is extended and drives the extrusion head 11 to simulate the extrusion of the stressed object 2.

[0038] Specifically, the extrusion head 11 is one of a conical head, a round head, and a square head, and the material of the extrusion head 11 can be selected according to actual conditions.

[0039] Preferably, the simulated impact mechanism includes a connecting block 13 installed on the first bracket 4 and connected to the connecting member 7, the connecting block 13 has a guide channel connected to the center hole of the sleeve 6, the connecting block 13 is provided with a gas cylinder 15, the sleeve 6 is provided with an impact member 14, the gas cylinder 15 is provided with compressed gas, the gas outlet of the gas cylinder 15 is provided with a valve, the compressed gas discharged from the gas cylinder 15 applies an impact force to the impact member 14, so that the impact member 14 impacts the force-bearing object 2 and the gas discharged from the gas cylinder 15 applies a shock wave to the force-bearing object 2.

[0040] Specifically, the impact member 14 may be spherical, cylindrical, or the like.

[0041] Preferably, the distance between the connecting block 13 and the connecting member 7 can be adjusted to facilitate the connection between the connecting block 13 and the connecting member 7. Specifically, the connecting block 13 can be installed on the slide 8 through a screw slider.

[0042] Preferably, the apparatus further includes a second bracket 16 slidably mounted on the frame 1. The distance between the second bracket 16 and the test chamber 3 is adjustable. A sealing disc 17 is provided on the second bracket 16. A fixing plate 18 is mounted on the sealing disc 17. The load-bearing object 2 is mounted on the fixing plate 18. The second bracket 16 is moved so that the sealing disc 17 seals the test chamber 3. The fixing plate 18 may have multiple through holes, and the load-bearing object 2 is tied to the fixing plate 18 using a flexible strip such as a rope.

[0043] Preferably, a turntable 19 is installed on the sealing disk 17 for horizontal rotation, and the fixed plate 18 is installed on the turntable 19. Specifically, the turntable 19 is installed on the sealing disk 17 through a rotating shaft, and the rotating shaft has a part extending out of the test chamber 3. A rotating handle 22 is installed at the end of the rotating shaft. During the detection process, the turntable 19 can be rotated by the handle 22 to increase the simulation scene.

[0044] Preferably, a support shaft 20 is installed on the turntable 19 of the sealing disk 17, and the fixed plate 18 is longitudinally rotatably installed on the support shaft 20. An adjusting member 21 for adjusting the angle of the fixed plate 18 relative to the sealing disk 17 is provided between the sealing disk 17 and the fixed plate 18. The length of the adjusting member 21 can be adjusted, and one end of the adjusting member 21 is longitudinally rotatably installed on the turntable 19, and the other end of the adjusting member 21 is longitudinally rotatably installed on the fixed plate 18. The adjusting member 21 can be an electric cylinder, a pneumatic cylinder or other components in the prior art. In order to increase stability, preferably, two groups of adjusting members 21 are provided, and the two groups of adjusting members 21 are circumferentially distributed on the outside of the support shaft 20.

[0045] It should be understood that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A device for simulating crush injuries, characterized in that: It comprises a test chamber (3) mounted on a frame (1), wherein a force-bearing object (2) is provided in the test chamber (3); The frame (1) is provided with a first bracket (4), and the first bracket (4) is provided with a simulation impact mechanism and a simulation extrusion mechanism for impact force; The simulated squeezing mechanism applies a squeezing force to the load-bearing object (2) in the test chamber (3), or the simulated impact mechanism applies an impact force to the load-bearing object (2) in the test chamber (3); The frame (1) is provided with a negative pressure machine (5) for adjusting the air pressure in the test chamber (3).

2. The squeeze and impact injury simulation device according to claim 1, characterized in that: A sleeve (6) is provided at one end of the test chamber (3) away from the force-bearing object (2); the sleeve (6) has a portion located inside the test chamber (3) and a portion located outside the test chamber (3); a connecting piece (7) is provided at one end of the sleeve (6) located outside the test chamber (3); and the simulated extrusion mechanism or the simulated impact mechanism is connected to the connecting piece (7).

3. The squeeze and impact injury simulation device according to claim 2, characterized in that: The simulated extrusion mechanism comprises a telescopic member (9) mounted on the first bracket (4); the telescopic end of the telescopic member (9) is connected to an extrusion rod (10); an extrusion head (11) is provided at one end of the extrusion rod (10) away from the telescopic member (9); the extrusion rod (10) is installed in a sleeve in a transverse sliding manner; a sealing member (12) is provided on the telescopic member (9); the sealing member (12) is connected to the connecting member (7) and seals the gap between the sleeve (6) and the extrusion rod (10).

4. The compression and impact injury simulation device according to claim 3, characterized in that: The extrusion head (11) is one of a conical head, a round head and a square head. The squeeze and impact injury simulation device according to claim 3 is characterized in that the squeeze rod (10) is detachably mounted on the telescopic end of the telescopic member (9).

5. The crush injury simulation device according to claim 2, characterized in that: The simulated impact mechanism comprises a connecting block (13) mounted on the first bracket (4) and connected to the connecting member (7), the connecting block (13) having a guide channel connected to the central hole of the sleeve (6), the connecting block (13) being provided with a gas cylinder (15), the sleeve (6) being provided with an impact member (14), the gas cylinder (15) being provided with compressed gas, the gas outlet of the gas cylinder (15) being provided with a valve, the compressed gas discharged from the gas cylinder (15) exerting an impact force on the impact member (14), causing the impact member (14) to impact the force-bearing object (2), and the gas discharged from the gas cylinder (15) exerting a shock wave on the force-bearing object (2).

6. The crush injury simulation device according to claim 5, characterized in that: The distance between the connecting block (13) and the connecting member (7) can be adjusted.

7. The crush injury simulation device according to any one of claims 1 to 6, characterized in that: A slide plate (8) is provided on the first bracket (4), and the simulated extrusion mechanism and the simulated impact mechanism are both mounted on the slide plate (8). The slide plate (8) is slid so that the simulated extrusion mechanism or the simulated impact mechanism is opposite to the connecting member (7).

8. The crush injury simulation device according to claim 1, characterized in that: The invention also includes a second bracket (16) slidably mounted on the frame (1), wherein the distance between the second bracket (16) and the test chamber (3) is adjustable, a sealing disk (17) is provided on the second bracket (16), a fixing plate (18) is mounted on the sealing disk (17), the force-bearing object (2) is mounted on the fixing plate (18), and the second bracket (16) is moved so that the sealing disk (17) seals the test chamber (3).

9. The crush injury simulation device according to claim 8, characterized in that: A rotating disk (19) is mounted on the sealing disk (17) for transverse rotation, and the fixing plate (18) is mounted on the rotating disk (19).

10. The crush injury simulation device according to claim 8 or 9, characterized in that: A support shaft (20) is mounted on the sealing disc (17), and the fixing plate (18) is longitudinally rotatably mounted on the support shaft (20). An adjusting member (21) for adjusting the angle of the fixing plate (18) relative to the sealing disc (17) is provided between the sealing disc (17) and the fixing plate (18).

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