Low-overload time sequence combination safety device
By combining the safety insurance device with low overload timing, hardware is used to identify and distinguish the launch overload, solving the problem of complex structure and high cost of fire rocket security devices, and achieving high reliability and low cost overload environment identification and insurance removal , suitable for fire rockets and low overload launch weapon systems.
Patent Information
- Application Number
- CN202411671169.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Modern fire rocket security devices have complex structures, large size and high cost, and existing recoil insurance institutions are difficult to achieve low cost and high reliability requirements.
The low overload timing combined safety safety device is adopted, and the combination of low overload conditions and timing electromagnetic unlocking mechanism is combined, and the hardware is used to identify and distinguish transmitting overloads, including the housing, electric detonator, power switch, sliding mechanism and restriction mechanism. Ensure effective discharge of insurance in an overload environment.
Achieve environmental identification with a launch overload value of less than 10g and a duration as low as 0.3s, distinguishing the ballistic environment from service processing, reducing structural complexity and cost, improving reliability and anti-interference capabilities, and suitable for fire rockets and low Overload launch weapon system.
Smart Images
Figure CN119289801A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of security technology, and in particular to a low overload timing combined safety insurance device. Background Art
[0002] The security device is an important part of the safety system of fire-fighting rockets. The design of this device is to ensure the safety of fire-fighting rockets under unpredicted conditions (such as service processing and transportation), prevent accidental ignition or explosion, and reliably release the insurance under predetermined launch conditions so that the fire-fighting rockets can function normally. The security device integrates a variety of physical principles and technical means, such as mechanical structure design, mechanical analysis, environmental adaptability design, etc. The specific technical implementation includes the use of recoil, aerodynamics, gas power or electricity as the trigger mechanism for releasing the insurance, and through sophisticated mechanism design, the recognition and transformation of environmental information is realized, ensuring that the insurance mechanism can effectively fix the insured parts under unpredicted conditions to prevent accidental ignition.
[0003] With the development of microelectronics and sensor technology, modern security devices also adopt a combination of electromechanical methods to achieve precise control and protection of security devices through circuit control modules, thereby improving the safety and reliability of security devices; these technical backgrounds provide solid support for the design and application of security devices.
[0004] However, modern fire-fighting rocket safety devices still have problems such as complex structure, large size and high cost. At present, various recoil safety mechanisms have been developed at home and abroad, among which the more widely used ones are zigzag groove recoil safety mechanisms, double degree of freedom safety machines, acceleration integrators, etc. However, these recoil safety mechanisms still have complex structures and large sizes, and it is difficult to meet the requirements of low cost. Therefore, the present invention proposes a low overload timing combined safety insurance device to solve the problems existing in the prior art. Summary of the invention
[0005] In view of the above problems, the purpose of the present invention is to propose a low overload timing combination safety insurance device, which uses the combination of "low overload condition + timing electromagnetic unlocking mechanism" to realize the first level of insurance of the security device. This combination can identify the overload environment with a launch overload value of less than 10g and a duration as low as 0.3s, and can effectively distinguish and identify the ballistic environment from the service processing, falling and other environments. The circuit of the present invention is only implemented by hardware and does not contain software. It has the characteristics of low cost, simple structure, high reliability and strong anti-interference. It can be promoted to use in firefighting rockets, realize the mass production and deployment of firefighting rockets, and enhance firefighting forces.
[0006] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a low overload timing combined safety insurance device, including a shell, an electric detonator, a power switch, a sliding mechanism and a limiting mechanism, the shell is provided with an electric detonator, and a power switch is provided on one side of the shell, the sliding mechanism includes a pressure plate, a push spring, a slider, an explosive column and a locking groove, a pressure plate is provided below the shell, a slider is provided at one end of the shell through a push spring, an explosive column is provided on the slider, and a locking groove is provided on one side of the slider, the limiting mechanism includes a bottom plate, an inertia spring, an inertia son, a side groove, a steel ball and an electromagnetic unlocking mechanism, a bottom plate is provided below the shell on one side of the pressure plate, an inertia son is provided on the bottom plate through an inertia spring, a steel ball is provided between the locking groove on one side of the slider and the inertia son, a side groove is provided on the side of the inertia son, and an electromagnetic unlocking mechanism is provided between the side groove and the shell.
[0007] A further improvement is that the electromagnetic unlocking mechanism includes an embedded groove, an electromagnetic pin puller, a nut and a fixed snap ring. The shell is provided with an embedded groove, and an electromagnetic pin puller is provided through the embedded groove. A nut is provided at the outer end of the embedded groove to limit the electromagnetic pin puller and ensure that the electromagnetic pin puller will not be pulled out during the service stage to release the limit on the inertia sub. The nut can be removed during the launch preparation stage. A fixed snap ring is provided in the side groove. The electromagnetic pin puller is adapted to the fixed snap ring to limit the position of the inertia sub, so that it limits the position of the inertia sub. After the electromagnetic pin puller is pulled out, when it is not overloaded or the overload is low and does not reach a predetermined value, the inertia spring keeps the inertia sub from falling.
[0008] A further improvement is that the side groove also corresponds to the steel ball, the slider is limited by the adaptation of the steel ball and the locking groove, the detonating charge column is misaligned with the electric detonator, and the explosion of the electric detonator cannot detonate the detonating charge column.
[0009] Further improvements are: the inertia spring is fixedly connected between the inertia sub and the bottom plate and is in a compressed state; the push spring is fixedly connected between the slider and the inner side of the shell and is in a compressed state. At this time, the power switch is in an off state. After the steel ball releases the limit on the slider, the slider can be pushed to move to a predetermined position, so that the detonating charge column on the slider moves with the slider to just below the electric detonator on the shell. At the same time, the slider can squeeze the knob of the power switch to close the power switch. The closing and opening of the power switch provide short circuit and release of the electric detonator short circuit.
[0010] Since the electromagnetic pin puller locks the inertia particle at normal times, the inertia particle will not move even if there is an overload condition, and cannot release the restriction on the slider. Only when the overload condition exists when the ammunition is fired and the electromagnetic pin puller is powered on to release the lock of the inertia particle, can the inertia particle release the restriction on the slider. After the safety is released, the electromagnetic pin puller must be powered off in time if an overload exists, and the electromagnetic pin puller will lock the inertia particle in the safety released position.
[0011] A further improvement is that the two sides of the side groove are arc-shaped edge structures, which can make the steel ball push out smoothly, and the pressure plate and the bottom plate are both installed on the lower side of the shell by screws.
[0012] The beneficial effects of the present invention are as follows: the present invention utilizes the combination of "low overload condition + timing electromagnetic unlocking mechanism" to realize the first-level insurance of the security device. This combination can identify the overload environment with a launch overload value of less than 10g and a duration as low as 0.3s, and can effectively distinguish and identify the ballistic environment from the service handling, falling and other environments.
[0013] The circuit of the present invention is realized only by hardware and does not contain software. It has the characteristics of low cost, simple structure, high reliability and strong anti-interference. It can be applied to fire-fighting rockets to realize mass production and deployment of fire-fighting rockets and enhance fire-fighting forces. It can also be promoted for use in various low-overload launching weapon and ammunition systems. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present invention.
[0015] Figure 2 It is a schematic diagram of the original state structure of the present invention.
[0016] Figure 3 It is a schematic diagram of the structure of the release state of the present invention.
[0017] Figure 4 This is the position diagram of the electric detonator-explosive charge column in the original state of the present invention.
[0018] Figure 5 This is a position diagram of the electric detonator-explosive charge column in the released state of the present invention.
[0019] Figure 6 This is the original state of the present invention - a limit diagram.
[0020] Figure 7 This is a limit diagram of the slider in the original state of the present invention.
[0021] Figure 8 It is a diagram of the release state of the present invention, i.e., release limit.
[0022] Fig. 9 This is a diagram of releasing the limit of the slider in the released state of the present invention.
[0023] Among them: 1. Shell; 2. Electric detonator; 3. Power switch; 4. Pressure plate; 5. Push spring; 6. Slider; 7. Explosive charge column; 8. Locking groove; 9. Base plate; 10. Inertia spring; 11. Inertia element; 12. Side groove; 13. Steel ball; 14. Embedded groove; 15. Electromagnetic pin puller; 16. Nut; 17. Fixed clamp. DETAILED DESCRIPTION
[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0025] according to Figure 1-Figure 9 As shown, this embodiment provides a low overload timing combined safety insurance device, including a shell 1, an electric detonator 2, a power switch 3, a sliding mechanism and a limiting mechanism, the shell 1 is provided with an electric detonator 2, and the shell 1 is provided with a power switch 3 on one side, the sliding mechanism includes a pressure plate 4, a push spring 5, a slider 6, an explosive column 7 and a locking groove 8, a pressure plate 4 is provided below the shell 1, a slider 6 is provided at one end of the shell 1 through a push spring 5, an explosive column 7 is provided on the slider 6, and a locking groove 8 is provided on one side of the slider 6, the limiting mechanism includes a bottom plate 9, an inertia spring 10, an inertia sub 11, a side groove 12, a steel ball 13 and an electromagnetic unlocking mechanism, a bottom plate 9 is provided below the shell 1 on one side of the pressure plate 4, and an inertia sub 11 is provided on the bottom plate 9 through an inertia spring 10;
[0026] As the instruction manual Figure 2 And the instruction manual Figure 7 As shown, a steel ball 13 is arranged between the locking groove 8 on one side of the slider 6 and the inertia element 11. The slider cannot move unless the steel ball is released from the limit. A side groove 12 is arranged on the side of the inertia element 11, and an electromagnetic unlocking mechanism is arranged between the side groove 12 and the housing 1.
[0027] As the instruction manual Figure 6 As shown, the electromagnetic unlocking mechanism includes an embedded groove 14, an electromagnetic pin puller 15, a nut 16 and a fixed snap ring 17. The shell 1 is provided with an embedded groove 14, and the electromagnetic pin puller 15 is provided through the embedded groove 14. A nut 16 is provided at the outer end of the embedded groove 14 to limit the electromagnetic pin puller and ensure that the electromagnetic pin puller will not be pulled out during the service stage to release the limit on the inertia particle. The nut can be removed during the launch preparation stage. A fixed snap ring 17 is provided in the side groove 12. The electromagnetic pin puller 15 is limited and adapted to the fixed snap ring 17, so that it limits the position of the inertia particle. After the electromagnetic pin puller is pulled out, when it is not overloaded or the overload is low and does not reach a predetermined value, the inertia spring keeps the inertia particle from falling.
[0028] The side groove 12 also corresponds to the steel ball 13. The slider 6 is limited by the adaptation of the steel ball 13 and the locking groove 8. The explosive charge column 7 is misaligned with the electric detonator 2, and the explosion of the electric detonator cannot detonate the explosive charge column.
[0029] As the instruction manual Figure 6As shown, the inertia spring 10 is fixedly connected between the inertia element 11 and the bottom plate 9 and is in a compressed state, ensuring that the inertia element will not fall when it is not overloaded or the overload is low and does not reach a predetermined value; as shown in the attached manual Figure 4 As shown, the push spring 5 is fixedly connected between the slider 6 and the inner side of the housing 1 and is in a compressed state. At this time, the power switch 3 is in an off state. After the steel ball releases the limit of the slider, the slider can be pushed to move to a predetermined position, so that the detonating charge column on the slider moves with the slider to the bottom of the electric detonator on the housing. At the same time, the slider can squeeze the knob of the power switch to close the power switch, as shown in the attached manual. Figure 3 shown.
[0030] The two sides of the side groove 12 are arc-shaped edge structures, which can make the steel ball push out smoothly. The pressure plate 4 and the bottom plate 9 are both installed on the lower side of the shell 1 by screws.
[0031] As the instruction manual Fig. 9 As shown, after receiving the transmission signal, the electromagnetic pin puller is pulled out to release the limit on the inertia particle. After the electromagnetic pin puller is pulled out, when the inertia particle is subjected to a large overload exceeding a predetermined value, the inertia particle overcomes the inertia spring and moves downward to release the limit on the steel ball.
[0032] As the instruction manual Figure 8 As shown, after the inertia particle overcomes the inertia spring and moves downward, the electromagnetic pin puller is inserted back to limit the inertia particle at a predetermined position to prevent the inertia particle from being pushed back to its original position by the inertia spring after the overload environment is released;
[0033] As the instruction manual Figure 5 As shown, the slider is pushed to a predetermined position by a push spring, and the explosive charge column on the slider is directly below the electric detonator on the shell. At this time, the electric detonator receives an explosion signal and can normally detonate the explosive charge column.
[0034] This combination solves the problem of identifying the ammunition launch environment under low overload conditions, and can ensure safety at any stage before the launch is released through timing insurance, meeting the requirements of GJB 373B-2019 "Fuze Safety Design Guidelines" that "the release isolation process should not be started unless a predetermined launch situation occurs", greatly improving the reliability of the safety insurance device
[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A low overload timing combined safety insurance device, characterized in that: The invention comprises a shell (1), an electric detonator (2), a power switch (3), a sliding mechanism and a limiting mechanism. The shell (1) is provided with an electric detonator (2), and a power switch (3) is provided on one side of the shell (1). The sliding mechanism comprises a pressure plate (4), a push spring (5), a slider (6), an explosive charge column (7) and a locking groove (8). A pressure plate (4) is provided below the shell (1), and a slider (6) is provided at one end of the shell (1) through a push spring (5). The slider (6) is provided with an explosive charge column (7), and a locking groove (8) is provided on one side of the slider (6). ), the limiting mechanism comprises a bottom plate (9), an inertia spring (10), an inertia particle (11), a side groove (12), a steel ball (13) and an electromagnetic unlocking mechanism, a bottom plate (9) is provided below the shell (1) on one side of the pressure plate (4), an inertia particle (11) is provided on the bottom plate (9) via the inertia spring (10), a steel ball (13) is provided between the locking groove (8) on one side of the slider (6) and the inertia particle (11), a side groove (12) is provided on the side of the inertia particle (11), and an electromagnetic unlocking mechanism is provided between the side groove (12) and the shell (1).
2. A low overload timing combined safety device according to claim 1, characterized in that: The electromagnetic unlocking mechanism comprises an embedded groove (14), an electromagnetic pin puller (15), a nut (16) and a fixed snap ring (17); the housing (1) is provided with an embedded groove (14); the electromagnetic pin puller (15) is provided through the embedded groove (14); the nut (16) is provided at the outer end of the embedded groove (14); the fixed snap ring (17) is provided in the side groove (12); the electromagnetic pin puller (15) and the fixed snap ring (17) are adapted to limit position.
3. A low overload timing combined safety device according to claim 1, characterized in that: The side groove (12) also corresponds to the steel ball (13), the slider (6) is limited by the adaptation of the steel ball (13) and the locking groove (8), and the detonating charge column (7) is misaligned with the electric detonator (2).
4. A low overload timing combined safety device according to claim 1, characterized in that: The inertia spring (10) is fixedly connected between the inertia element (11) and the bottom plate (9) and is in a compressed state, and the push spring (5) is fixedly connected between the slider (6) and the inner side of the housing (1) and is in a compressed state, and at this time, the power switch (3) is in an off state.
5. A low overload timing combined safety device according to claim 1, characterized in that: The two sides of the side groove (12) are arc-shaped edge structures, and the pressure plate (4) and the bottom plate (9) are both mounted on the lower side of the housing (1) by means of screws.