Remote control parachute opening module for water rocket

Abstract

The utility model discloses a water rocket is with remote control and opens the module of umbrella, it is designed in solving traditional module parachute release not accurate, control single etc. Module includes casing, air pump, parachute and jacking subassembly, adopts "wireless remote control - precision air pressure - mechanical jacking " cooperation design. The casing is streamline light high -strength composite material, and optimization aerodynamic performance, air pump subassembly contains micro - high pressure air pump and receiving antenna, supports remote control, and can charge endurance, and jacking subassembly passes through the syringe and piston of accurate cooperation, and the parachute is released stably. Its advantage lies in control sensitive, stable structure, safe and reliable, can avoid the jam and misrelease, adapts to the multiple launch scene, realizes water rocket safe recovery.

Description

Technical Field

[0001] This utility model belongs to the field of aerospace models, and in particular relates to a remote-controlled parachute opening module for a water rocket. Background Technology

[0002] As aerospace model enthusiasts increasingly demand higher levels of stability, control precision, and safety from water rocket launches, traditional water rocket parachute release modules have gradually revealed numerous shortcomings. Existing modules largely rely on mechanical triggering structures, which suffer from complex designs, low trigger sensitivity, and difficulty in precisely controlling the release timing, making them prone to parachute jamming, premature or delayed release.

[0003] Meanwhile, traditional modules lack a coordinated design of wireless remote control and precision pneumatic propulsion, often relying on manual triggering or simple mechanical transmission. This makes long-distance, precise control impossible, and their structural stability is insufficient, making them prone to failure in high-speed flight or complex airflow environments. Furthermore, some modules have poor aerodynamic design, resulting in significant drag during flight, further impacting the stability and reliability of parachute release. Therefore, designing a structurally stable, controllable, and reliable precision parachute-release water rocket launch module is crucial to addressing these current technological challenges. Utility Model Content

[0004] The purpose of this utility model is to provide a remote-controlled parachute deployment module for water rockets, aiming to solve the problems existing in the background art. To achieve this purpose, the technical solution adopted by this utility model is:

[0005] To address the problems of inaccurate parachute release, limited control methods, insufficient structural stability, and poor aerodynamic performance in existing water rocket launch modules, this invention provides a remote-controlled parachute deployment module for water rockets. Through an innovative combination of precision pneumatic propulsion and wireless remote control technology, it achieves precise and sensitive parachute release while optimizing the overall structure and aerodynamic design to improve the module's stability and reliability.

[0006] A remote-controlled parachute deployment module for a water rocket includes a shell assembly, an air pump assembly, a parachute, and a lifting assembly. The air pump assembly is installed inside the shell assembly and is connected to the lifting assembly via an inflation component. The parachute is mounted on the top of the lifting assembly. The air pump assembly is also electrically connected to a receiving antenna for wirelessly receiving control signals, thus forming a coordinated release system of "remote control-air pressure-mechanical lifting".

[0007] Furthermore, the shell assembly includes a shell, a connecting block, and a cover. The shell is fixedly connected to the cover via the connecting block. The shell adopts a streamlined design to optimize aerodynamic performance and reduce airflow resistance during flight. The shell is made of lightweight, high-strength composite material with a thickness of 2-3mm, which ensures structural strength while reducing overall weight and improving flight performance.

[0008] Furthermore, the air pump assembly includes a power switch, a power supply component, an air pump, and an inflation component. The air pump is connected to one end of the inflation component, and the other end of the inflation component is connected to the lifting component. The power switch is electrically connected to the power supply component, which provides power to the air pump and the receiving antenna. The power supply component is also electrically connected to the charging and discharging interface for easy recharging and extended battery life. The air pump is a miniature high-pressure gas pump with a working pressure range of 0.3-0.8MPa and a response time of ≤0.5 seconds, ensuring rapid start-up and providing stable air pressure. The inflation component uses a high-strength flexible air tube with a pressure resistance of ≥1.0MPa to prevent the tube from rupturing due to excessive air pressure and enhance structural safety.

[0009] Furthermore, the lifting assembly includes a syringe, a piston, a support block, and a limiting block. The piston slides inside the syringe, and the limiting block is fixed to the piston head. The support block is installed on the top of the piston and fits against the bottom of the parachute. The limiting block is used to limit the maximum stroke of the piston to avoid excessive thrust that could damage the structure. The piston and the inner wall of the syringe are designed for a precision fit with a gap of ≤0.02mm to improve air pressure transmission efficiency and ensure smooth and precise piston movement. The surface of the support block has an arc-shaped transition design, and anti-slip pads are placed at the contact points with the parachute to avoid damage to the parachute during release, while ensuring uniform transmission of lifting force.

[0010] Furthermore, the receiving antenna is electrically connected to the power supply unit to receive control signals from an external remote controller, enabling remote triggering of the air pump to start, thereby controlling the release of the parachute.

[0011] The core of this remote-controlled parachute deployment module consists of a miniature high-pressure air pump, a 433MHz wireless remote control receiver module, a rechargeable lithium battery (power supply), a high-strength flexible hose (inflation component), and a standard syringe with a Luer interface, forming a pneumatic parachute deployment mechanism. The entire module is integrated and installed on a lightweight foam support structure, and is adapted and assembled with the water rocket shell components to form a complete remote-controlled parachute deployment system.

[0012] Furthermore, the core components are precisely linked to the overall module structure:

[0013] The 433MHz wireless remote control receiver module integrates a receiving antenna, with a communication frequency of 433MHz and an effective communication distance of ≥50m. It is electrically connected to a rechargeable lithium battery (power supply) and can quickly receive signals from an external remote control and trigger the air pump to start.

[0014] The rechargeable lithium battery (power supply component) is equipped with a charging and discharging interface, supports USB fast charging, has a capacity of 1000mAh, an output voltage of 5V, and can support ≥20 consecutive umbrella opening operations on a single full charge, providing stable power to the air pump and receiving module.

[0015] The core power component is a miniature high-pressure air pump with a working pressure range of 0.3-0.8MPa, a response time of ≤0.5 seconds, a rated power of 15W, and an inflation flow rate of ≥50ml / s, which can quickly establish a stable air pressure.

[0016] Furthermore, the pneumatic transmission structure design has been optimized, with a standard syringe with a Luer interface serving as the lifting actuator. The interface is highly adaptable, allowing for quick disassembly and replacement, and supports repeated inflation, significantly reducing maintenance costs.

[0017] The syringe and the mini high-pressure air pump are connected by a high-strength flexible hose (inflator). The hose is made of PU high-pressure air tubing with an inner diameter of 4mm, an outer diameter of 6mm, a pressure resistance of ≥1.0MPa, and excellent sealing performance to prevent air pressure leakage.

[0018] The piston is slidably mounted inside the syringe. It is made of nitrile rubber and coated with a PTFE lubricating layer. The clearance between the piston and the inner wall of the syringe is ≤0.02mm, which ensures airtightness and reduces sliding friction resistance. The piston has a maximum stroke of 80mm, which is just enough to push the support block to fully open the parachute compartment and release the parachute.

[0019] Furthermore, the installation support structure balances practicality and lightweight design: the lightweight foam support structure has low density and strong load-bearing capacity, which can not only firmly fix the electronic control module (remote control receiver module, power supply component) and pneumatic mechanism (air pump, syringe), but also significantly reduce the overall weight of the module, adapt to the load requirements of various small and medium-sized water rockets, and can be quickly assembled and fixed with the water rocket shell components through connecting blocks, making disassembly and assembly convenient.

[0020] The beneficial effects of this utility model are:

[0021] Sensitive and precise control: Through wireless remote control + micro air pump-syringe servo system, it can achieve precise triggering from a distance. The parachute release response time is short and the release timing is highly controllable, solving the delay and jamming problems of traditional mechanical triggering.

[0022] Stable and reliable structure: Each component adopts a modular design with a firm connection. The limit block and precision fit structure avoid damage caused by excessive movement. The charging and discharging interface design improves the convenience of battery life and the overall failure rate is low.

[0023] Excellent safety performance: The air pressure propulsion method is gentle and controllable, avoiding rigid impacts from mechanical triggering. The parachute release process is smooth, effectively protecting the water rocket body and parachute, and reducing the risk of flight accidents.

[0024] Excellent aerodynamic performance: The streamlined shell design reduces flight drag, improves the flight stability of the water rocket, and provides a good flight environment for the precise release of the parachute. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of the water rocket launch module provided in this embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the overall structure of the water rocket launch module provided in this embodiment of the utility model;

[0027] Figure 3 A schematic diagram of the air pump structure provided for an embodiment of this utility model.

[0028] The following are the labeling elements in the figure:

[0029] 1. Housing assembly; 11. Housing; 12. Connecting block; 13. Cover; 2. Air pump assembly; 21. Power switch; 22. Power supply component; 23. Air pump; 24. Inflation component; 25. Charging / discharging interface; 26. Receiving antenna; 3. Parachute; 4. Lifting assembly; 41. Syringe; 42. Piston; 43. Support block; 44. Limiting block. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0034] Example 1

[0035] like Figures 1-3 As shown, the core of this utility model lies in constructing a parachute release system of "wireless remote control - precision air pressure - precise lifting", breaking the design limitations of traditional mechanical triggering.

[0036] In the shell assembly 1, the shell 11 is made of carbon fiber composite material with a thickness of 2.5 mm. This material has a density of only 1.6 g / cm³ and a compressive strength ≥300 MPa, ensuring both lightweight structure and resistance to airflow impacts and landing collisions during flight. The shell 11 adopts a streamlined curved surface design, with a hemispherical head, a smooth transition in the middle, and a tapered tail. Wind tunnel testing shows that at flight speeds of 10-30 m / s, the drag coefficient is ≤0.35, significantly improving flight stability. The connecting block 12 is made of ABS engineering plastic and is fixed to the shell 11 and the cover 13 respectively by threaded connection. The connection torque is ≥5 N·m to ensure no loosening after assembly. The cover 13 has a sealing gasket on the inside to prevent rainwater or dust from entering the internal components during flight.

[0037] In the air pump assembly 2, the power supply component 22 uses a rechargeable lithium battery with a capacity of 1000mAh and an output voltage of 5V. It supports USB fast charging via the charging / discharging interface 25, and a single full charge can support ≥20 consecutive transmissions. The air pump 23 is a miniature high-pressure DC air pump with a rated power of 15W, a working pressure range of 0.3-0.8MPa, and an inflation flow rate ≥50ml / s. It can quickly build up sufficient air pressure to drive the piston movement within 0.5 seconds. The inflation component 24 uses a PU high-pressure air hose with an inner diameter of 4mm, an outer diameter of 6mm, and a pressure resistance of 1.2MPa. The two ends of the air hose are connected to the air outlet of the air pump 23 and the air inlet of the syringe 41 via quick-connect fittings, respectively. It has good sealing performance and no air leakage. The receiving antenna 26 is a miniature external antenna with a communication frequency of 433MHz, an effective communication distance ≥50m, strong anti-interference ability, and can accurately receive remote control signals and trigger the air pump 23 to start.

[0038] In the lifting assembly 4, the syringe 41 is made of glass, with a volume of 20ml, an inner diameter of 10mm, and a wall thickness of 2mm. Its transparency facilitates observation of the internal piston movement. The piston 42 is made of nitrile rubber with a PTFE lubricating layer on its surface. The clearance between the piston 42 and the inner wall of the syringe 41 is ≤0.02mm, ensuring airtightness and reducing sliding friction resistance. The maximum stroke of the piston 42 is 80mm, which is just enough to push the support block 43 to fully open the parachute compartment and release the parachute 3. The support block 43 is made of lightweight aluminum alloy, weighing ≤10g. Its top has an arc-shaped groove design, which fits tightly with the parachute pack at the bottom of the parachute 3. A silicone anti-slip pad is attached to the groove to prevent the parachute 3 from shifting during the lifting process. The limiting block 44 is a ring structure made of ABS plastic. It is fixed to the inner wall of the syringe 41 by a buckle, 10mm away from the top of the syringe 41. It effectively limits the maximum stroke of the piston 42, preventing excessive pushing that could cause excessive stress and damage to the parachute 3.

[0039] Parachute 3 is made of nylon silk, with a canopy diameter of 1.2m and a weight of ≤30g. The parachute lines are made of high-strength polyester thread with a diameter of 0.5mm and a breaking strength of ≥10N. After being folded, parachute 3 is stored in the parachute compartment, which is located on the top of the shell 11 and is sealed by the cover 13.

[0040] Workflow: Pressing the transmit button on the external remote control activates the receiving antenna 26 to receive the control signal and transmit it to the power switch 21. The power switch 21 then triggers the power supply component 22 to supply power to the air pump 23. Once the air pump 23 starts, it rapidly inflates the syringe 41 through the inflation component 24. The air pressure inside the syringe 41 increases rapidly, pushing the piston 42 upward. The piston 42 then drives the support block 43 to rise synchronously. The support block 43 pushes open the cover 13 (the cover 13 is a movable design that automatically pops open after being triggered), thereby precisely releasing the parachute 3 from the parachute compartment and achieving the safe recovery of the water rocket.

[0041] Example 2

[0042] Based on Example 1, the lifting component 4 and the wireless control module are optimized to further improve the release accuracy and anti-interference capability, making them suitable for competitive launch scenarios with higher control requirements.

[0043] In the lifting assembly 4, the syringe 41 is replaced with stainless steel with a wall thickness of 3mm, offering enhanced corrosion resistance and impact resistance, making it suitable for use in complex outdoor environments. The piston 42 adopts a double-layer sealing structure, adding a lip seal ring to further improve airtightness, ensuring no leakage under 0.8MPa air pressure. A pressure sensor is added to the arc-shaped groove of the support block 43, which can detect the contact pressure with the parachute 3 in real time. When the pressure reaches a preset threshold (2N), the inflation pressure of the air pump 23 is adjusted through feedback signals to ensure uniform lifting force and avoid abnormal release caused by excessive or insufficient pressure.

[0044] In the wireless control module, the receiving antenna 26 has been upgraded to a built-in PCB antenna, integrated on the circuit board of the power supply component 22, resulting in a more compact structure. A signal filtering module has also been added, effectively filtering electromagnetic interference in the environment. The communication distance has been increased to ≥80m, and the signal reception success rate is ≥99%. The remote control now includes a transmission indicator light and a battery level display, allowing users to easily confirm whether the signal has been successfully transmitted and the remaining battery power.

[0045] In addition, an air pressure monitoring window is added to the outside of the shell 11 and sealed with a transparent acrylic plate to observe the air pressure status inside the syringe 41. Users can adjust the inflation pressure of the air pump 23 with a remote control according to actual needs to achieve fine adjustment of the release speed of the parachute 3, adapting to water rockets of different weights and flight altitudes.

[0046] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A remote-controlled parachute deployment module for a water rocket, characterized in that: It includes a housing assembly, an air pump assembly, a parachute, and a lifting assembly. The air pump assembly is installed inside the housing and is connected to the lifting assembly via an inflation component. The parachute is mounted on the top of the lifting assembly. The air pump assembly includes a power switch, a power supply component, an air pump, and an inflation component. The air pump is connected to one end of the inflation component, and the other end of the inflation component is connected to the lifting assembly. The power switch is electrically connected to the power supply component, and the power supply component is electrically connected to the air pump.

2. The remote-controlled parachute deployment module for a water rocket according to claim 1, characterized in that: The housing assembly includes a housing, a connecting block, and a cover, with the housing connected to the cover via the connecting block.

3. A remote-controlled parachute deployment module for a water rocket according to claim 2, characterized in that: The lifting assembly includes a syringe, a piston, a support block, and a limiting block. The piston is disposed inside the syringe, the limiting block is disposed at the head of the piston, and the support block is disposed at the top of the piston. The support block is used to properly lower the parachute.

4. A remote-controlled parachute deployment module for a water rocket according to claim 3, characterized in that: The power supply component is electrically connected to the charging and discharging interface.

5. A remote-controlled parachute deployment module for a water rocket according to claim 4, characterized in that: The power supply unit is also electrically connected to a receiving antenna.

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