Small anti-interference vibration signal receiving device

Abstract

The utility model discloses a small anti-interference vibration signal receiving device which comprises an ammunition shell, the ammunition shell is provided with an installation cavity, a signal receiving assembly is arranged in the installation cavity, the signal receiving assembly comprises a connecting shaft, the upper end portion of the connecting shaft is sleeved with a sensor connecting plate, and a buzzing piece is arranged between the sensor connecting plate and the connecting shaft. The bottom end of the connecting shaft is provided with a feeler lever for receiving vibration signals, and the sensor connecting plate is provided with a positive electrode end and a negative electrode end which are connected with the fuze circuit board. According to the utility model, after the middle feeler lever is in contact with a target, a buzzing sheet in the signal receiving assembly generates a piezoelectric effect for operation, and the design enables the whole device to have strong anti-interference capability in a complex electromagnetic environment, to be convenient to use and to have high universality.

Description

Technical Field

[0001] The utility model relates to the field of intelligent guard ammunition, in particular to a small anti-interference vibration signal receiving device. Background Art

[0002] In the development process of modern military technology, the design of intelligent guard ammunition has gradually become a research hotspot. Intelligent guard ammunition needs to have the ability to perform tasks automatically. In particular, how to maintain the normal functions of equipment and task execution in complex electromagnetic environments is the focus of current research. Electromagnetic interference has a great impact on the task execution of intelligent guard ammunition, easily causing inaccurate reception of vibration signals and affecting the response and decision-making of intelligent control systems. Therefore, there is an urgent need in the prior art for a vibration signal receiving mechanism that can still work efficiently and stably in complex electromagnetic environments.

[0003] Chinese Patent with Publication No. CN 108597487 A discloses a shrapnel pin structure, a buzzer and a buzzer production method, which relate to electronic and electrical products. Aiming at the problem that the contact terminal will exert a large pressing force on the buzzer sheet, affecting the vibration and sound generation of the buzzer sheet, it includes a first pin in contact with the ceramic sheet at the center of the buzzer sheet, and a second pin in contact with the outer edge of the metal substrate of the buzzer sheet; the first pin includes a first input end installed on the bottom cover, and a first vibration generating shrapnel fixed to the first input end and extending in a spiral shape to contact the ceramic sheet; the first vibration generating shrapnel approaches the ceramic sheet in a spiral extension manner and then contacts the ceramic sheet of the buzzer sheet. The spiral shape has good elasticity. When the buzzer sheet vibrates, the resistance to the buzzer sheet is smaller, and the influence on the vibration amplitude and vibration frequency of the buzzer sheet is small, so as to support the buzzer sheet to have a larger range of vibration amplitude and vibration frequency. This patent has less influence on the resonance amplitude and frequency of the buzzer sheet through the designed shrapnel pin structure, so as to achieve a better electro-acoustic conversion effect. However, it mainly focuses on the vibration control and acoustic performance of the buzzer sheet, and does not consider optimizing for the actual structure of ammunition and applications in different complex environments.

[0004] In view of the above problems, the present invention proposes a small anti-interference vibration signal receiving mechanism. The mechanism is ingeniously designed, not only suitable for working in complex electromagnetic environments, but also simple in structure and easy to process, and can effectively meet the miniaturization requirements of ammunition. By enhancing the anti-electromagnetic interference ability and reliability, the present invention ensures the accurate acquisition of vibration signals while improving the overall performance and task execution ability of ammunition. Content of the Utility Model

[0005] The purpose of the utility model is to provide a small anti-interference vibration signal receiving device

[0006] The innovation point of this utility model lies in that the touch rod contacts the target, and the piezoelectric effect is generated by the buzzer piece in the signal receiving component for operation, so that the overall device has strong anti-interference ability in a complex electromagnetic environment, is convenient to use and has strong popularization.

[0007] To achieve the above-mentioned utility model purpose, the technical solution of this utility model is: a small anti-interference vibration signal receiving device, including an ammunition shell, the ammunition shell is provided with an installation cavity, and it is characterized in that a signal receiving component is arranged in the installation cavity, the signal receiving component includes a connecting shaft, a sensor connecting plate is sleeved on the upper end of the connecting shaft, a buzzer piece is arranged between the sensor connecting plate and the connecting shaft, a touch rod for receiving vibration signals is arranged at the bottom end of the connecting shaft, and a positive electrode end and a negative electrode end connected to the fuse circuit board are arranged on the sensor connecting plate. The vibration signal is conducted by the touch rod contacting the target, so that the buzzer piece generates a piezoelectric effect to realize stable signal conduction and improve the signal conduction efficiency.

[0008] Furthermore, the buzzer piece and the sensor connecting plate are connected by a riveting method. The riveting connection method reduces the risk of component loosening caused by vibration and improves the signal receiving stability.

[0009] Furthermore, a first insulating sleeve is arranged above the sensor connecting plate, and a second insulating sleeve is arranged below the buzzer piece. The addition of the first insulating sleeve and the second insulating sleeve effectively isolates external interference and short-circuit risks, and improves the accuracy of signal reception and the safety of the device.

[0010] Furthermore, the first insulating sleeve and the second insulating sleeve wrap the signal receiving component as a whole. The wrapping design avoids the influence of the external environment on the component and improves the overall waterproof and sealing effect.

[0011] Furthermore, the touch rod is of an L-shaped structure, including a long rod and a short rod, the short rod is located inside the connecting shaft, and an insulating bushing for isolating internal and external components is sleeved on the short rod. The insulating bushing on the short rod realizes the insulation function of internal and external components and isolates the interference signal received by the touch rod from being conducted to the sensor connecting plate under electromagnetic interference.

[0012] Furthermore, a spiral structure is arranged on the long rod, and the long rod and the ammunition shell are limited by a touch rod fixing screw. When the touch rod is affected by the outside world, the touch rod fixing screw amplifies the tiny vibration and transmits it to the sensor connecting plate to improve the reception efficiency.

[0013] Furthermore, a dust-proof cover plate is arranged below the signal receiving component, a hole groove for the touch rod to pass through is arranged on the dust-proof cover plate, and the dust-proof cover plate fits with the inner wall of the installation cavity. The dust-proof cover is used to prevent external foreign objects from entering the installation cavity.

[0014] Further, a graphene layer is coated on the bottom of the dust-proof cover plate. Adding the graphene layer at the bottom of the dust-proof cover plate enables the entire signal receiving device to better shield external electromagnetic interference.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, the target conduction vibration signal is contacted through the touch rod, and the piezoelectric effect is generated on the buzzer sheet to achieve stable signal conduction, improving the signal conduction efficiency; by using the touch rod fixing screw, when the touch rod is affected by the outside world, the tiny vibration is amplified and transmitted to the sensor connection plate, improving the reception efficiency.

[0017] 2. In the present utility model, through the riveting connection method, the risk of component loosening caused by vibration is reduced, and the signal reception stability is improved.

[0018] 3. In the present utility model, a first insulating sleeve and a second insulating sleeve are added, effectively isolating external interference and short-circuit risks, improving the signal reception accuracy and the safety of the device; by using the insulating bushing on the short rod, the insulation effect of internal and external components is realized, isolating the interference signal received by the touch rod from being conducted to the sensor connection plate under electromagnetic interference; adding the graphene layer at the bottom of the dust-proof cover plate enables the entire signal receiving device to better shield external electromagnetic interference.

[0019] 4. In the present utility model, the wrapping design is used to avoid the influence of the external environment on the components, improving the overall waterproof and sealing effect; the dust-proof cover is used to prevent external foreign objects from entering the installation cavity. Description of the Drawings

[0020] Figure 1 It is a schematic cross-sectional view of the present utility model.

[0021] Figure 2 It is a schematic partial structure view of the present utility model.

[0022] In the figure: 1. Ammunition shell; 2. Installation cavity; 3. Signal receiving component; 4. Connecting shaft; 5. Sensor connection plate; 6. Buzzer sheet; 7. Touch rod; 8. Positive terminal; 9. Negative terminal; 10. First insulating sleeve; 11. Second insulating sleeve; 12. Long rod; 13. Short rod; 14. Insulating bushing; 15. Touch rod fixing screw; 16. Dust-proof cover plate; 17. Hole groove; 18. Graphene layer. Specific Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings.

[0024] Embodiment 1: As Figure 1 、 2A small anti-interference vibration signal receiving device shown in the figure includes an ammunition shell 1. The ammunition shell 1 is provided with an installation cavity 2. A signal receiving component 3 is arranged in the installation cavity 2. The signal receiving component 3 includes a connecting shaft 4. A sensor connecting plate 5 is sleeved on the upper end of the connecting shaft 4. A buzzer sheet 6 is arranged between the sensor connecting plate 5 and the connecting shaft 4. A touch rod 7 for receiving vibration signals is arranged at the bottom end of the connecting shaft 4. A positive electrode 8 and a negative electrode 9 connected to the fuse circuit board are arranged on the sensor connecting plate 5. The buzzer sheet 6 and the sensor connecting plate 5 are connected by riveting. A first insulating sleeve 10 is arranged above the sensor connecting plate 5. A second insulating sleeve 11 is arranged below the buzzer sheet 6. The first insulating sleeve 10 and the second insulating sleeve 11 wrap the signal receiving component 3 as a whole. The touch rod 7 is of an L-shaped structure, including a long rod 12 and a short rod 13. The short rod 13 is located inside the connecting shaft 4. An insulating bushing 14 for isolating internal and external components is sleeved on the short rod 13. The long rod 12 is provided with a spiral structure. The long rod 12 is limited by a touch rod fixing screw 15 between the long rod 12 and the ammunition shell 1. A dust-proof cover plate 16 is arranged below the signal receiving component 3. A hole slot 17 for the touch rod 7 to pass through is arranged on the dust-proof cover plate 16. The dust-proof cover plate 16 is attached to the inner wall of the installation cavity 2. A graphene layer 18 is coated on the bottom of the dust-proof cover plate 16.

[0025] The working principle of the present utility model is as follows: When the ammunition is in the standby state, when the target passes above the ammunition, the target touches the touch rod 7, and the touch rod 7 generates a vibration signal, which is conducted to the installation cavity 2, causing the buzzer sheet 6 in the signal receiving component 3 to deform and generate a voltage signal. The signal receiving component 3 works using the piezoelectric effect principle of the buzzer sheet 6; when the signal receiving component 3 synchronously inputs the electrical signal into the fuse circuit board, the fuse issues a detonation instruction, and the fuse outputs an ignition signal to detonate the ammunition and attack the target.

[0026] In summary, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

Claims

1. A small anti-interference vibration signal receiving device, including an ammunition shell, the ammunition shell is provided with an installation cavity, characterized in that, A signal receiving component is provided in the installation cavity. The signal receiving component includes a connecting shaft. A sensor connecting plate is sleeved on the upper end portion of the connecting shaft. A buzzer sheet is provided between the sensor connecting plate and the connecting shaft. A contact rod for receiving vibration signals is provided at the bottom end of the connecting shaft. A positive electrode end and a negative electrode end connected to the fuse circuit board are provided on the sensor connecting plate.

2. The small anti-interference vibration signal receiving device according to claim 1, wherein The buzzer sheet and the sensor connecting plate are connected by a riveting method.

3. The small anti-interference vibration signal receiving device according to claim 1, wherein A first insulating sleeve is provided above the sensor connecting plate, and a second insulating sleeve is provided below the buzzer sheet.

4. The small anti-interference vibration signal receiving device according to claim 3, characterized in that, The first insulating sleeve and the second insulating sleeve integrally cover the signal receiving component.

5. The small anti-interference vibration signal receiving device according to claim 1, characterized in that, The contact rod is of an L-shaped structure and includes a long rod and a short rod. The short rod is located inside the connecting shaft, and an insulating bushing for isolating internal and external components is sleeved on the short rod.

6. The small anti-interference vibration signal receiving device according to claim 5, characterized in that, A spiral structure is provided on the long rod, and the long rod and the ammunition shell are limited by a contact rod fixing screw.

7. The small anti-interference vibration signal receiving device according to claim 1, characterized in that A dust-proof cover plate is provided below the signal receiving component. A hole slot for the contact rod to pass through is provided on the dust-proof cover plate, and the dust-proof cover plate is attached to the inner wall of the installation cavity.

8. The small anti-interference vibration signal receiving device according to claim 7, characterized in that A graphene layer is coated on the bottom of the dust-proof cover plate.

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