An easily detachable cartridge

Abstract

The present invention relates to an easily separable support, comprising a bottom push and a plurality of petals, wherein the plurality of petals cooperate to form a support body, wherein a connected body groove and a mounting groove are provided in the support body, wherein the body groove is used to accommodate a body, wherein a wind resistance inclined surface is provided at the opening of the body groove, wherein one end of the bottom push is detachably arranged in the mounting groove, and the other end is provided with a conical body inclined outward, wherein an annular groove is provided on the outer side of the support body, wherein a disconnectable locking structure is provided in the annular groove. The plurality of petals form the support body, and the plurality of petals are closed together by the locking structure, wherein when the body is ejected, the plurality of petals expand outward under the action of air resistance, and when the expansion reaches a certain extent, the locking structure is disconnected, and the petals are separated, thereby realizing instantaneous separation of the body from the support body, avoiding disturbance to the body when the body is ejected, and ensuring the stability of the flight of the body. The wind resistance inclined surface causes the airflow to generate a radial separation torque, thereby splitting the support body into a plurality of petals, thereby realizing instantaneous separation of the support body from the body.

Description

Technical Field

[0001] The invention relates to the technical field of ballistic testing, and in particular to an easily detachable bullet support. Background Art

[0002] Loading the projectile to high speed to achieve high-speed impact with the target is a key technology in projectile testing research. Due to the small size of the projectile, the launch speed of the projectile during the test is very high, so the projectile needs to be placed in the corresponding sabot, and the projectile is constrained by the sabot to make the projectile more stable during launch. After the projectile and the sabot are launched together, the sabot needs to be separated from the projectile as soon as possible to avoid the sabot affecting the target landing posture of the projectile. The existing sabot is generally an integral sabot. Although it has the characteristics of good air tightness and high stability, it is impossible to achieve instant separation of the sabot and the projectile, thereby causing disturbance to the projectile, causing the projectile to roll and nutate uncontrollably, affecting the flight stability of the projectile, and thus affecting the final experimental results. Summary of the invention

[0003] The present invention aims to provide an easily separable sabot in view of the problem that the sabot and the projectile body cannot be separated instantly in the prior art, which causes the sabot to easily affect the flight stability of the projectile body.

[0004] The technical solution of the present invention for solving the above-mentioned technical problems is as follows: an easily separable cartridge, comprising a bottom push and a plurality of petals, wherein the plurality of petals cooperate to form a cartridge body, wherein a connected cartridge groove and a mounting groove are provided in the cartridge body, wherein the cartridge body groove is used to accommodate the cartridge, wherein a wind resistance inclined surface is provided at the opening of the cartridge body groove, wherein one end of the bottom push is detachably arranged in the mounting groove, and the other end is provided with a conical body inclined outwardly, wherein an annular groove is provided on the outer side of the cartridge body, and a disconnectable locking structure is provided in the annular groove.

[0005] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the present invention can also make the following improvements to the above technical solution:

[0006] Furthermore, the locking structure includes a winding wire, an annular rubber belt or a plastic cable tie.

[0007] Furthermore, the inclination angle δ of the wind resistance slope is 30°-50°.

[0008] Furthermore, the inclination angle δ of the wind resistance slope is 45°.

[0009] Furthermore, the inclination angle θ of the cone is 10°-20°.

[0010] Furthermore, cylinder one and cylinder three with the same diameter are respectively provided at both ends of the spring support body, cylinder two is provided between cylinder one and cylinder three, the diameters of cylinder one and cylinder three are greater than the diameter of cylinder two and are smoothly transitioned to cylinder two through a conical body respectively.

[0011] Furthermore, the cylinder 1 is located at one end of the elastic body groove, and the annular groove includes annular groove 1 and annular groove 2, the annular groove 1 is arranged on the cylinder 1, and the annular groove 2 is arranged on the cylinder 3.

[0012] Furthermore, the bottom push also includes a columnar body, the columnar body and the conical body are an integral structure, and the diameter of the columnar body is the same as the diameter of the cylindrical body.

[0013] Furthermore, the mounting groove is provided with an internal thread, and the bottom push is provided with a corresponding external thread.

[0014] Furthermore, the material of the bottom push is nylon, and the material of the support body is aluminum alloy.

[0015] The beneficial effects of the present invention are: 1. The present invention forms a support body through a plurality of petals, and closes the plurality of petals together by setting a locking structure. When the projectile is ejected, the plurality of petals expand outward under the action of air resistance. When expanded to a certain extent, the locking structure is disconnected and the petals are separated, thereby realizing instant separation of the projectile and the support body, avoiding disturbance to the projectile when the projectile is ejected, and ensuring the stability of the projectile in flight.

[0016] 2. By setting the wind resistance slope, the airflow produces a radial separation torque, that is, the radial component of the air resistance that the sabot body is subjected to during flight, so that the sabot body is instantly split into multiple petals, achieving rapid separation of the sabot body and the projectile, avoiding affecting the hit effect of the projectile and ensuring the accuracy of the test results.

[0017] 3. By setting an outward-inclined cone structure on the bottom push, before firing, the cone and the barrel are matched with a micro-gap. During firing, under the action of the gas of the air cannon, the cone stretches out in all directions and contacts the inner wall of the barrel, realizing effective and controllable air sealing, so that the cartridge case body moves toward the exit under the push of the gas, ensuring the stability and controllability of the cartridge case firing speed.

[0018] 4. By setting a locking device in the annular groove, misalignment between the petals can be avoided, ensuring that a complete installation groove and body groove are formed in the main body of the support, ensuring that the bottom push and the body can be correctly installed.

[0019] 5. By setting the locking structure as a winding wire, an annular rubber belt or a plastic cable tie, the fastening effect between the petals can be ensured, and at the same time, it is easy to disconnect under the action of air resistance, ensuring that the projectile body and the projectile support body are separated instantly, avoiding disturbance to the projectile body.

[0020] 6. By arranging a cylinder 1 and a cylinder 3 with larger diameters at both ends of the sabot body, a stable fit between the sabot body and the inner wall of the gun barrel is achieved, which guides the sabot body and the projectile, avoids the sabot body and the projectile from tilting in the gun barrel, and ensures that the projectile hits the target in a normal posture; by arranging a cylinder 2 with a smaller diameter in the middle of the sabot body, the overall weight of the sabot body can be reduced, ensuring that the sabot body and the projectile can obtain a higher flight speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the appearance of the easily detachable support of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the easily detachable spring support of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the main body of the cartridge case of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the bottom push of the present invention.

[0025] The reference numerals are recorded as follows: 1. bottom push; 1.1. conical body; 1.2. cylindrical body; 2. support body; 2.1. mounting groove; 2.2. body groove; 2.3. wind resistance slope; 2.4. annular groove one; 2.5. annular groove two; 2.6. cylinder one; 2.7. cylinder two; 2.8. cylinder three; 2.9. conical body; 3. locking structure. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figures 1 to 4As shown, the present invention discloses an easily separable support, comprising a bottom pusher 1 and a plurality of petals, wherein the plurality of petals cooperate to form a support body 2, wherein the support body 2 is provided with a connected body groove 2.2 and a mounting groove 2.1, so as to reduce the overall weight of the support body 2, thereby obtaining a higher movement speed, and at the same time increase the separation distance between the petals, thereby avoiding the influence on the movement of the body, and ensuring the stability of the movement of the body, wherein the body groove 2.2 is used to accommodate the body, and a wind resistance inclined surface 2.3 is provided at the opening of the body groove 2.2, wherein one end of the bottom pusher 1 is detachably arranged in the mounting groove 2.1, and the other end is provided with an outwardly inclined conical body 1.1, and an annular groove is provided on the outer side of the support body 2, wherein a disconnectable locking structure 3 is provided in the annular groove. By arranging the locking structure 3 in the annular groove, the locking structure 3 can be prevented from sliding on the outer wall of the support body 2, so that the plurality of petals are matched as required, and the misalignment between the petals can be avoided.

[0028] In this embodiment, two petals are provided, and the two petals cooperate to form the support body 2, which can not only realize the rapid splitting of the support body 2, but also avoid the generation of debris to affect the operation of the projectile.

[0029] In an optional embodiment, the number of the petals can be three or four. When the number of petals is large, the difficulty of assembly is increased and the assembly efficiency is reduced. Setting the number of petals to three or four can satisfy the rapid splitting of the support body 2, achieve the effect of instant separation of the support body 2 and the projectile, and ensure the stability of the projectile operation.

[0030] The locking structure 3 includes a winding wire, an annular rubber belt or a plastic tie. The winding wire can be a cotton thread, which can reduce the difficulty of disconnecting the winding wire, realize rapid splitting between the petals, and instantly separate the support body 2 from the projectile, thereby ensuring the running track of the projectile.

[0031] The inclination angle δ of the wind resistance slope 2.3 is 30°-50°, and the inclination angle δ of the wind resistance slope 2.3 is preferably 45°. The wind resistance slope 2.3 at the front end of the sabot body 2 is affected by wind resistance, causing the airflow to generate a radial separation torque, that is, the radial component of the air resistance suffered by the sabot body 2 during flight, so that the sabot body 2 is split into multiple petals, achieving rapid separation of the sabot body 2 from the projectile, avoiding affecting the impact effect of the projectile, and ensuring the accuracy of the test results. The inclination angle in this numerical range facilitates the wind resistance to enter the projectile groove 2.2, ensuring the radial and axial components of the wind resistance, and at the same time facilitating the placement of the projectile into the projectile groove 2.2.

[0032] The two ends of the cartridge body 2 are provided with a cylinder 1 2.6 and a cylinder 3 2.8 of the same diameter, respectively, and a cylinder 2.7 is provided between the cylinder 1 2.6 and the cylinder 3 2.8, and the diameters of the cylinder 1 2.6 and the cylinder 3 2.8 are larger than the diameter of the cylinder 2 2.7 and are smoothly transitioned to the cylinder 2 2.7 through a conical body 2.9. By setting the diameter of the cylinder 2 2.7 smaller, the overall weight of the cartridge body 2 can be reduced, thereby improving the running speed of the cartridge body and the stability of the shelling of the projectile.

[0033] The cylinder 1 2.6 is located at one end of the body groove 2.2, the annular groove includes an annular groove 1 and an annular groove 2.5, the annular groove 1 2.4 is arranged on the cylinder 1 2.6, and the annular groove 2.5 is arranged on the cylinder 3 2.8. The annular groove 1 2.4 and the annular groove 2 2.5 for placing the locking structure 3 are arranged at both ends of the support body 2, which can ensure that the multiple petals are closely matched to avoid shaking or misalignment, thereby facilitating the installation of the bottom push 1 and the body and ensuring the stability of the support movement.

[0034] The bottom push 1 also includes a columnar body 1.2, which is an integral structure with the conical body 1.1, and the diameter of the columnar body 1.2 is the same as the diameter of the cylindrical body 2.6.

[0035] The inclination angle θ of the cone 1.1 is 10°-20°, and the inclination angle θ is preferably 15°. When the inclination angle θ is less than 10°, the diameter of the cone 1.1 is too small, and a good airtight and sealing effect cannot be formed between the cone 1.1 and the inner wall of the barrel, which affects the stability of the sabot body 2 and the projectile, and reduces the running speed; when the inclination angle θ is greater than 20°, the outer diameter size difference between the cone 1.1 and the columnar body 1.2 is large, and the cylinder 1 2.6 and the cylinder 3 2.8 cannot achieve the guiding effect on the sabot body 2, and the sabot body 2 is easy to shake in the barrel, affecting the stability of the projectile flight.

[0036] The material of the bottom push 1 is nylon, and the material of the sabot body 2 is aluminum alloy. The nylon material can reduce the friction of the inner wall of the barrel, increase the service life of the barrel, and will not affect the movement of the sabot body 2, ensuring that the sabot body 2 moves along the specified path.

[0037] In this embodiment, the base thrust 1 is made of mc nylon, which has the advantages of light weight, high strength and self-lubrication, so as to avoid damaging the inner wall of the barrel and affecting the running trajectory of the cartridge case, thereby ensuring that the projectile hits the target normally.

[0038] The mounting groove 2.1 is provided with an internal thread, and the bottom push 1 is provided with a corresponding external thread. The conical body 1.1 of the bottom push 1 can be used to effectively hold air, so that the main body 2 of the cartridge case can be pushed by the launch airflow to obtain a higher flight speed. At the same time, when the petal body splits under the action of the front air resistance, the bottom push 1 will not constrain the petal body splitting, so that the petals are quickly separated, ensuring that the main body 2 of the cartridge case and the projectile body are instantly separated.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An easily detachable cartridge case, characterized in that: It includes a bottom push and a plurality of petals, which cooperate to form a cartridge body. A connected cartridge groove and a mounting groove are provided in the cartridge body. The cartridge groove is used to accommodate the cartridge, and a wind resistance slope is provided at the opening of the cartridge groove. One end of the bottom push is detachably arranged in the mounting groove, and an internal thread is provided on the mounting groove. The bottom push is provided with a corresponding external thread. The other end of the bottom push is provided with a cone inclined outward. Before firing, the cone and the gun barrel are matched with a micro-gap. During firing, under the action of the gas of the air cannon, the cone extends to the surroundings and contacts with the inner wall of the gun barrel, thereby achieving effective and controllable air sealing, so that the cartridge body moves toward the outlet under the push of the gas. An annular groove is provided on the outer side of the cartridge body, and a disconnectable locking structure is provided in the annular groove.

2. The easily detachable support according to claim 1, characterized in that: The locking structure includes a winding wire, an annular rubber belt or a plastic cable tie.

3. The easily detachable support according to claim 1, characterized in that: The inclination angle δ of the wind resistance slope is 30°-50°.

4. The easily detachable support according to claim 3, characterized in that: The inclination angle δ of the wind resistance slope is 45°.

5. The easily detachable support according to claim 1, characterized in that: The inclination angle θ of the cone is 10°-20°.

6. The easily detachable support according to claim 1, characterized in that: The two ends of the support body are respectively provided with a cylinder 1 and a cylinder 3 with the same diameter, and a cylinder 2 is provided between the cylinder 1 and the cylinder 3. The diameters of the cylinder 1 and the cylinder 3 are greater than the diameter of the cylinder 2 and are smoothly transitioned to the cylinder 2 through a conical body respectively.

7. The easily detachable support according to claim 6, characterized in that: The cylinder 1 is located at one end of the elastic body groove, and the annular groove includes annular groove 1 and annular groove 2. The annular groove 1 is arranged on the cylinder 1, and the annular groove 2 is arranged on the cylinder 3.

8. The easily detachable support according to claim 6, characterized in that: The bottom push also includes a columnar body, which is an integral structure with the conical body, and the diameter of the columnar body is the same as the diameter of the cylindrical body.

9. The easily detachable support according to claim 1 or 6, characterized in that: The mounting groove is provided with an internal thread, and the bottom push is provided with a corresponding external thread.

10. The easily detachable support according to claim 1, characterized in that: The material of the bottom push is nylon, and the material of the main body of the support is aluminum alloy.

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