Low-overload small recoil safety mechanism

Abstract

The invention discloses a low-overload small recoil safety mechanism which comprises a first inertia assembly, a second inertia assembly and a third inertia assembly. The first inertia assembly comprises a first inertia cylinder and a first spring. The first inertia assembly comprises a first inertia cylinder and a first spring, the second inertia assembly comprises a second inertia cylinder and a second spring, the third inertia assembly comprises a third inertia cylinder and a third spring, the security cover, the security seat, the steel ball, the guide pin, the check nut, the seat body and the cover plate are arranged, and the security cover is provided with a first groove and a second groove. A transverse horizontal groove, a first limiting groove, a second limiting groove and a third limiting groove are formed in the security seat, wherein the first limiting groove, the second limiting groove and the third limiting groove are perpendicular to the transverse horizontal groove. A first guide rod, a second guide rod and a third guide rod are arranged at the bottom of the first limiting groove, the bottom of the second limiting groove and the bottom of the third limiting groove correspondingly. The method has the beneficial effects that the specific safety release range can be adjusted by changing the mass of the inertia cylinder and the resistance of the spring within the range of 10-200g.

Description

Technical Field

[0001] The invention relates to the technical field of a recoil safety mechanism, in particular to a low-overload small recoil safety mechanism. Background Art

[0002] Compared with conventional rockets, secondary launch rockets have more flexible ways to strike the enemy, so they are increasingly equipped in modern weapon systems. Secondary launch rockets have their own secondary ignition function after leaving the barrel. Their launch characteristics are that the launch overload in the barrel is large, and the recoil overload caused by the secondary ignition after leaving the barrel is small and continuous. Therefore, the security on the secondary launch rocket launcher needs to be able to reliably release the insurance under the secondary ignition overload of the rocket, while ensuring the safety of the rocket in the barrel, and in order to improve the precision strike and power of the rocket, the security mechanism is developing towards miniaturization. In order to adapt to the launch environment and miniaturization trend of secondary rockets, it is very necessary to design a low-overload small recoil insurance mechanism, which has broad application prospects. Summary of the invention

[0003] The purpose of the present invention is to overcome the disadvantages of the prior art. The specific safety release range can be adjusted within the range of 10g to 200g by changing the mass of the inertia cylinder and the spring resistance.

[0004] The object of the present invention is achieved by the following technical solutions: a low-overload small recoil safety mechanism, a first inertia component, the first inertia component comprising a first inertia cylinder and a first spring; A second inertia assembly, the second inertia assembly comprising a second inertia cylinder and a second spring; A third inertia assembly, the third inertia assembly comprising a third inertia cylinder and a third spring; A security cover, a security seat, a steel ball, a guide pin, a check nut, a seat body and a cover plate, wherein the security cover is provided with a groove 1 and a groove 2, the interior of the security seat is provided with a transverse horizontal groove and a limit groove 1, a limit groove 2 and a limit groove 3 which are arranged perpendicularly to the transverse horizontal groove, the bottoms of the limit groove 1, the limit groove 2 and the limit groove 3 are provided with a first guide rod, a second guide rod and a third guide rod respectively, the tops of the first guide rod, the second guide rod and the third guide rod are provided with a first inertia cylinder, a second inertia cylinder and a third inertia cylinder respectively, the tops of the limit groove 1 and the limit groove 2 are opened, and the limit groove 1 and the limit groove 2 cooperate with the groove 1 and the groove 2, and the first inertia cylinder is provided at the same time. The bottoms of the first inertia cylinder, the second inertia cylinder and the third inertia cylinder are respectively provided with an opening placement groove 1, an opening placement groove 2 and an opening placement groove 3, below which are respectively the first spring, the second spring and the third spring, the bottom ends of the first spring, the second spring and the third spring are respectively embedded in the first guide rod, the second guide rod and the third guide rod, the side walls of the first inertia cylinder, the second inertia cylinder and the third inertia cylinder are respectively provided with a clamping groove, the steel ball is provided with a first steel ball and a second steel ball, and the first steel ball is arranged between the first inertia component and the second inertia component, and the second steel ball is arranged between the second inertia component and the third inertia component.

[0005] In the low overload small recoil safety mechanism of the present invention, the first steel ball and the second steel ball are located on the transverse horizontal groove, a limiting groove four is also provided on the side wall of the second inertia cylinder, and a limiting assembly is provided on the limiting groove four, and the limiting assembly includes a compression screw, a compression spring and a fourth guide rod.

[0006] In the low overload small recoil safety mechanism of the present invention, an inserting protrusion is provided on the end of the fourth guide rod, and the inserting protrusion and the limiting groove four are matched with each other, and the resistance of the first spring, the second spring and the third spring are different.

[0007] In the low-overload small recoil safety mechanism of the present invention, the second inertia cylinder serves as a safety component.

[0008] The present invention has the following advantages: 1. The second inertia cylinder of the present invention serves as a safety component, which blocks the upper space of the second inertia cylinder when assembled and leaves the upper space of the second inertia cylinder open when the safety is released to release other isolation structural components, such as sliders, slide rods, rotors, etc.

[0009] 2. When the launch overload of the present invention is greater than 200g, the overload detection equipment is a dual centrifugal testing machine, model DT2050, and the manufacturer is Jiujiang Precision Measurement Instrument Equipment Co., Ltd. The third inertia cylinder moves downward to compress the third spring. After the third inertia cylinder moves, the second steel ball moves into the second inertia cylinder constraint groove. At the same time, the first inertia cylinder moves downward to compress the first spring. After the first inertia cylinder is in place, the first steel ball releases the constraint on the second inertia cylinder. If the overload continues, the second inertia cylinder moves downward for a short distance and cannot continue to move downward due to the constraint of the second steel ball. Therefore, when the overload is greater than 200g, the recoil safety mechanism cannot release the safety, which can play a role in muzzle safety.

[0010] 3. In the present invention, when the launch overload is within the range of 30g to 200g and lasts for a period of time, the resistance of the third spring is greater than the weight of the third inertia cylinder of 200g, so the third inertia cylinder does not move, and the second steel ball has no restraining effect on the second inertia cylinder. The first inertia cylinder moves downward under the effect of continuous overload to compress the first spring. When the first inertia cylinder is in place, the first steel ball falls into the groove of the first inertia cylinder, and the restraint of the first steel ball on the second inertia cylinder is released. The second inertia cylinder moves downward under the effect of continuous overload to compress the second spring. When the second inertia cylinder is in place, the guide rod enters the deep groove from the shallow groove of the second inertia cylinder under the effect of the compression spring, thereby locking the second inertia cylinder, and the recoil safety mechanism can reliably release the safety.

[0011] 4. In the present invention, when the overload is less than 30g, the first inertia cylinder cannot move downward to its proper position, so the constraint of the first steel ball on the second inertia cylinder always exists, and the recoil safety mechanism cannot release the safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic structural diagram of the second inertia cylinder in the present invention; Figure 3 It is a cross-sectional schematic diagram of the present invention.

[0013] In the figure, 1, security cover, 2, security seat, 3, first steel ball, 4, first guide rod, 5, guide fixing plate, 6, second guide rod, 7, third guide rod, 8, third spring, 9, second steel ball, 10, third inertia cylinder, 11, second inertia cylinder, 12, second spring, 13, first inertia cylinder, 14, first spring, 15, compression screw, 16, compression spring, 17, guide rod. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings, and the protection scope of the present invention is not limited to the following: like Figure 1~Figure 3As shown, a low overload small recoil safety mechanism, a first inertia assembly, the first inertia assembly includes a first inertia cylinder 13 and a first spring 14; A second inertia component, the second inertia component comprising a second inertia cylinder 11 and a second spring 12; A third inertia assembly, the third inertia assembly comprising a third inertia cylinder 10 and a third spring 8; A security cover 1, a security seat 2, a steel ball, a guide pin, a check nut, a seat body and a cover plate. The device does not release the insurance under high overload, which plays a role in the overload safety of the rocket muzzle launch. The security cover 1 is provided with a groove 1 and a groove 2. The interior of the security seat 2 is provided with a transverse horizontal groove and a limit groove 1, a limit groove 2 and a limit groove 3 vertically arranged with the transverse horizontal groove. The bottoms of the limit groove 1, the limit groove 2 and the limit groove 3 are respectively provided with a first guide rod 4, a second guide rod 6 and a third guide rod 7. The tops of the first guide rod 4, the second guide rod 6 and the third guide rod 7 are respectively provided with a first inertia cylinder 13, a second inertia cylinder 11 and a third inertia cylinder 10. The tops of the limit groove 1 and the limit groove 2 are opened, and the limit groove 1 and the limit groove 2 cooperate with the groove 1 and the groove 2. At the same time, the bottoms of the first inertia cylinder 13, the second inertia cylinder 11 and the third inertia cylinder 10 are divided An opening placement groove 1, an opening placement groove 2 and an opening placement groove 3 are respectively provided, and the first spring 14, the second spring 12 and the third spring 8 are respectively disposed below the opening placement groove 1, the opening placement groove 2 and the opening placement groove 3. The bottom ends of the first spring 14, the second spring 12 and the third spring 8 are respectively embedded in the first guide rod 4, the second guide rod 6 and the third guide rod 7. The side walls of the first inertia cylinder 13, the second inertia cylinder 11 and the third inertia cylinder 10 are all provided with a clamping groove. The steel ball is provided with a first steel ball 3 and a second steel ball 9, and the first steel ball 3 is arranged between the first inertia component and the second inertia component, and the second steel ball 9 is arranged between the second inertia component and the third inertia component. The overload range of the safety can be released by changing the resistance of the first inertia cylinder 13, the second inertia cylinder 11, the third inertia cylinder 10 and the first spring 14, the second spring 12 and the third spring 8 to adjust.

[0015] In an embodiment of the present invention, the first steel ball 3 and the second steel ball 9 are located on the transverse horizontal groove, and a limiting groove four is also provided on the side wall of the second inertia cylinder 11, and a limiting assembly is provided on the limiting groove four, and the limiting assembly includes a compression screw 15, a compression spring 16 and a fourth guide rod.

[0016] In the embodiment of the present invention, an inserting protrusion is provided on the end of the fourth guide rod, and the inserting protrusion cooperates with the limiting groove four, and the resistances of the first spring 14, the second spring 12 and the third spring 8 are all different.

[0017] In the embodiment of the present invention, the second inertia cylinder 11 serves as a safety member, and the guide fixing plate 5 is disposed between the first guide rod 4 and the second guide rod 6 , and the guide fixing plate 5 serves to provide stability.

[0018] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A small low-overload recoil safety mechanism, characterized in that: include; A first inertia component, the first inertia component comprising a first inertia cylinder and a first spring; A second inertia assembly, the second inertia assembly comprising a second inertia cylinder and a second spring; A third inertia assembly, the third inertia assembly comprising a third inertia cylinder and a third spring; A security cover, a security seat, a steel ball, a guide pin, a check nut, a seat body and a cover plate, wherein the security cover is provided with a groove 1 and a groove 2, the interior of the security seat is provided with a transverse horizontal groove and a limit groove 1, a limit groove 2 and a limit groove 3 which are arranged perpendicularly to the transverse horizontal groove, the bottoms of the limit groove 1, the limit groove 2 and the limit groove 3 are provided with a first guide rod, a second guide rod and a third guide rod respectively, the tops of the first guide rod, the second guide rod and the third guide rod are provided with a first inertia cylinder, a second inertia cylinder and a third inertia cylinder respectively, the tops of the limit groove 1 and the limit groove 2 are opened, and the limit groove 1 and the limit groove 2 cooperate with the groove 1 and the groove 2, and the first inertia cylinder is provided at the same time. The bottoms of the first inertia cylinder, the second inertia cylinder and the third inertia cylinder are respectively provided with an opening placement groove 1, an opening placement groove 2 and an opening placement groove 3, below which are respectively the first spring, the second spring and the third spring, the bottom ends of the first spring, the second spring and the third spring are respectively embedded in the first guide rod, the second guide rod and the third guide rod, the side walls of the first inertia cylinder, the second inertia cylinder and the third inertia cylinder are respectively provided with a clamping groove, the steel ball is provided with a first steel ball and a second steel ball, and the first steel ball is arranged between the first inertia component and the second inertia component, and the second steel ball is arranged between the second inertia component and the third inertia component.

2. A low overload small recoil safety mechanism according to claim 1, characterized in that: The first steel ball and the second steel ball are located on the transverse horizontal groove. A limiting groove four is further provided on the side wall of the second inertia cylinder, and a limiting assembly is provided on the limiting groove four. The limiting assembly includes a compression screw, a compression spring and a fourth guide rod.

3. A low overload small recoil safety mechanism according to claim 2, characterized in that: An inserting protrusion is provided on the end of the fourth guide rod, and the inserting protrusion cooperates with the limiting groove four. The resistance forces of the first spring, the second spring and the third spring are all different.

4. A low overload small recoil safety mechanism according to claim 1, characterized in that: The second inertia cylinder serves as a safety element.

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