CN110926262B - Pneumatic net gun trigger device, trigger system and trigger method of unmanned aerial vehicle - Google Patents

Pneumatic net gun trigger device, trigger system and trigger method of unmanned aerial vehicle Download PDF

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Publication number
CN110926262B
CN110926262B CN201911133575.XA CN201911133575A CN110926262B CN 110926262 B CN110926262 B CN 110926262B CN 201911133575 A CN201911133575 A CN 201911133575A CN 110926262 B CN110926262 B CN 110926262B
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trigger
groove
pneumatic net
top cover
net gun
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CN110926262A (en
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李雪初
巴腾跃
彭延云
李大伟
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Beijing Machinery Equipment Research Institute
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Beijing Machinery Equipment Research Institute
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/70—Details not provided for in F41B11/50 or F41B11/60
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D7/00—Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft
    • B64D7/02—Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/80—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention discloses a pneumatic net gun triggering device, a pneumatic net gun triggering system and a pneumatic net gun triggering method of an unmanned aerial vehicle, belongs to the technical field of pneumatic net gun triggering of the unmanned aerial vehicle, and aims to solve the problems that a triggering device in the prior art is large in size, heavy in weight, complex in structure, complex in operation, greatly influenced by environment temperature and the like. The invention relates to a pneumatic net gun trigger device, which comprises a top cover (1), a bottom cover (2), a first suction part, a second suction part and an elastic part, wherein the top cover is arranged on the top cover; the first suction part is fixed in the top cover (1), and the second suction part is fixed in the bottom cover (2); the elastic component is compressed in the top cover (1) through the suction of the first suction part and the second suction part; the elastic component is used for applying elastic force to the bottom cover (2) to eject the bottom cover (2), so that the bottom cover (2) applies trigger force to the pneumatic net gun (17). The method is suitable for triggering the pneumatic net gun of the unmanned aerial vehicle.

Description

Pneumatic net gun trigger device, trigger system and trigger method of unmanned aerial vehicle
Technical Field
The invention belongs to the technical field of pneumatic net gun triggering of unmanned aerial vehicles, and particularly relates to a pneumatic net gun triggering device, a pneumatic net gun triggering system and a pneumatic net gun triggering method of an unmanned aerial vehicle.
Background
The pneumatic net gun of the guided unmanned aerial vehicle utilizes a high-pressure gas cylinder as power, and the gas cylinder releases high-pressure gas by pressing a button on the pneumatic net gun, so that the flexible net is thrown out.
At present, the button on the pneumatic net gun is pressed manually or automatically, and the manual mode is that the button is pressed by hands; the automatic mode is mainly that the motor drives and the steering engine drives the trigger lever to press the button downwards.
The manual mode just can press the button through the staff when just pneumatic net rifle has not installed unmanned aerial vehicle on ground, in case pneumatic net rifle is installed on unmanned aerial vehicle or unmanned aerial vehicle takes off the back, and the manual mode of pressing the button is just no longer feasible. The motor driving mode in the automatic mode is a mode similar to an electric push rod, and a set of mechanical devices (gears and lead screws) for converting the rotary motion of a motor into linear motion is included, so the size and the quality cannot meet the requirements of being installed on an unmanned aerial vehicle, meanwhile, in order to improve the hit rate, the time from starting to triggering of the triggering device must be very short (usually hundreds of milliseconds), the starting and stopping of the motor are controlled in the short time, meanwhile, the motor is prevented from being impacted, and the precision requirement on control is very high, and the difficulty is very high; in the steering engine driving mode, the steering engine can only do rotary motion, so that an additional set of link mechanism is required to convert the rotary motion of the steering engine into linear motion, and once the link mechanism is installed improperly, the phenomenon of clamping stagnation is probably caused after the steering engine works for a period of time, so that the triggering failure is probably caused; moreover, the performance of the steering engine is easily influenced by the ambient temperature, the action is delayed in a low-temperature environment, and the hit rate is reduced. To sum up, above-mentioned mode is not suitable as the trigger device of the pneumatic net rifle of guidance unmanned aerial vehicle too.
The requirements of light weight, small volume, installability, operability in task execution, environmental adaptability and the like are comprehensively considered, so that a pneumatic net gun trigger device which is light in weight, small in volume, easy to install, simple and convenient to operate and good in environmental adaptability needs to be designed.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a triggering device, a triggering system and a triggering method for a pneumatic net gun of an unmanned aerial vehicle, so as to solve the problems of large size, heavy weight, complex structure, complex operation, large influence of ambient temperature, etc. of the triggering device in the prior art.
The purpose of the invention is mainly realized by the following technical scheme:
a pneumatic net gun trigger device of an unmanned aerial vehicle comprises a top cover, a bottom cover, a first suction portion, a second suction portion and an elastic component;
the first suction part is fixed in the top cover, and the second suction part is fixed in the bottom cover;
the elastic part is compressed in the top cover through the suction of the first suction part and the second suction part; the elastic component is used for applying elastic force to the bottom cover to pop out the bottom cover, so that the bottom cover applies triggering force to the pneumatic net gun.
Furthermore, the first suction part is arranged in the center of the top cover, and a gap is formed between the first suction part and the top cover; the elastic component is arranged in a gap between the top cover and the first suction part.
Further, the bottom cover is provided with a first groove and a second groove which are coaxial, the diameter of the first groove is larger than that of the second groove, and the first groove and the second groove form a coaxial stepped groove with a step surface;
the top cover is arranged in the first groove, and the diameter of the first groove is larger than or equal to the outer diameter of the top cover; the second suction portion is arranged in the second groove, and when the first suction portion and the second suction portion are sucked, the lower end of the elastic component can be abutted against the step surface.
Furthermore, the device also comprises a trigger connecting rod and a trigger seat;
the first end of the trigger connecting rod is connected with the bottom cover, and the second end of the trigger connecting rod is connected with the trigger seat; the trigger seat is arranged above a trigger button of the pneumatic net gun.
Furthermore, the first suction part is a power-off electromagnet, the second suction part is a sucker, and the elastic component is a spring; the power-off magnet is attracted with the sucker to compress the spring in the top cover.
Furthermore, the length of the spring after being completely compressed is smaller than the length of the spring compressed in the top cover when the power-off type magnet is attracted with the sucker.
A pneumatic net gun triggering system of an unmanned aerial vehicle comprises a pneumatic net gun triggering device, an upper clamp and a lower clamp;
go up anchor clamps and install on unmanned aerial vehicle, pneumatic net rifle trigger device installs in last anchor clamps, goes up anchor clamps and is connected with anchor clamps down, and pneumatic net rifle presss from both sides tightly at last anchor clamps downthehole with the circle that anchor clamps formed down.
Further, the upper clamp is provided with a rectangular groove and a first semicircular groove, and the pneumatic net gun trigger device is arranged in the rectangular groove;
the wall that rectangular channel and first semicircular groove shared is provided with through-hole and third recess, and through-hole and the coaxial setting of third recess, through-hole are used for passing and trigger the seat, and pneumatic net rifle's trigger button sets up in the third recess.
Further, the lower clamp is provided with a second semicircular groove, and the first semicircular groove and the second semicircular groove form a circular hole for fixing the pneumatic net gun.
A triggering method of a pneumatic net gun of an unmanned aerial vehicle adopts a pneumatic net gun triggering system, and comprises the following steps:
detaching the trigger seat from the trigger connecting rod, then detaching the trigger connecting rod from the bottom cover, fixing the trigger connecting rod and the trigger device of the trigger seat which are detached in the rectangular groove, then installing the trigger connecting rod on the bottom cover, and finally connecting the trigger seat on the trigger connecting rod through the through hole;
mounting a pneumatic net gun and a lower clamp;
and separating the first suction part from the second suction part, enabling the bottom cover to move downwards under the action of the elastic part, and enabling the trigger seat to impact a trigger button of the pneumatic net gun to complete the triggering of the pneumatic net gun.
Compared with the prior art, the invention can at least realize one of the following technical effects:
(1) the trigger device adopts the attraction of the magnet and the sucker to compress the spring, utilizes the compression force of the spring to apply the trigger force to the trigger button, does not need a mechanical device which changes the rotary motion into the linear motion, and has small volume; the whole trigger device except the sucker is made of cast iron, and other parts are made of light aluminum alloy, so that the weight is light, and the light load requirement is met.
(2) The trigger device adopts the first suction part, the second suction part and the elastic part, and the trigger system adopts the upper clamp and the lower clamp to realize the fixation and the connection of the trigger device and the pneumatic net gun, thereby avoiding using a complex structure, leading the whole structure to be simpler and having higher reliability.
(3) The bottom cover, the trigger connecting rod and the trigger seat move downwards under the action of the spring force to impact the trigger button on the pneumatic net gun so as to complete triggering. The time from starting to triggering is short, the precision requirement on control is met, the motor is not started or stopped, the condition that the motor is impacted does not need to be considered, the temperature influence cannot be caused, and the triggering device is more reliable.
(4) The compression force of the spring can be adjusted through the free length of the spring on the basis that the spring can be compressed in the inner space of the top cover, and the size of the trigger force is adjusted by installing the springs with different free lengths, so that the size of the trigger force can be adjusted within the range of 40N-70N. The free length of the spring can be adjusted according to specific use requirements, and different trigger forces are generated.
(5) The triggering method is simple to operate, the power-off electromagnet loses magnetism after the voltage is switched on, the bottom cover, the triggering connecting rod and the triggering seat move downwards under the action of the spring force to impact the triggering button on the pneumatic net gun so as to complete triggering; after triggering, the two ends of the wire on the power-off electromagnet lose voltage, and after the unmanned aerial vehicle returns to the ground after fighting, the bottom cover is lifted upwards by the hand of the user to enable the power-off electromagnet to be adsorbed with the sucker again, so that the state to be triggered can be recovered.
The invention provides a trigger device for meeting the requirement of triggering a pneumatic net gun on an unmanned aerial vehicle, and the trigger device has the advantages of small volume, light weight, easiness in installation, convenience in operation, capability of not being influenced by external environment temperature, capability of generating trigger force with different sizes by replacing internal parts, low cost and the like.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic view A of the pneumatic net gun trigger device of embodiment 1;
FIG. 2 is a schematic view B of the pneumatic net gun trigger device of embodiment 1;
FIG. 3 is a sectional view A of the trigger device of the pneumatic net gun according to embodiment 1;
FIG. 4 is a cross-sectional view B of the trigger device of the pneumatic net gun in embodiment 1;
FIG. 5 is a schematic view of a pneumatic net gun trigger system according to embodiment 2;
FIG. 6 is a cross-sectional view of the pneumatic net gun trigger system of embodiment 2.
Reference numerals:
1-a top cover; 2-bottom cover; 3-a first screw; 4-trigger link; 401-a first threaded hole; 402-a second threaded hole; 403-rectangular notch; 5-a trigger seat; 6-a first nut; 7-a second nut; 8-a stud; 9-a power-off electromagnet; 10-a spring; 11-a suction cup; 12-a second screw; 13 a third screw; 14-a fourth screw; 15-a third nut; 16-upper clamp; 1601-raised bars; 1602 — a first opening; 1603 — second opening; 17-a pneumatic net gun; 1701-trigger button; 18-lower clamp.
Detailed Description
The pneumatic net gun triggering device, the triggering system and the triggering method of the unmanned aerial vehicle are further described in detail with reference to specific embodiments, which are only used for comparison and explanation, and the invention is not limited to these embodiments.
Example 1
In one embodiment of the present invention, as shown in fig. 1 to 4, a pneumatic net gun trigger device includes a top cover 1, a bottom cover 2, a power-off electromagnet 9, a suction cup 11 and a spring 10. The power-off electromagnet 9 is arranged in the top cover 1, the sucker 11 is arranged in the bottom cover 2, and the spring 10 is compressed in the top cover 1 through the attraction of the power-off electromagnet 9 and the sucker 11. The spring 10 is used to apply a spring force to the bottom cover 2 to eject the bottom cover 2, so that the bottom cover 2 applies a trigger force to the pneumatic net gun 17.
The sucking disc 11 of the pneumatic net gun triggering device is made of cast iron materials, and the rest parts are made of aluminum alloy. The deenergized electromagnet 9 has magnetic force when no voltage is applied in a flat state, and the magnetic force disappears when 24V voltage is applied. The power-off electromagnet 9 can be replaced by an electromagnet taking soft iron or silicon steel as an iron core, and the electromagnet generates magnetism when being powered on and disappears after being powered off.
The trigger device adopts the magnet and the sucker 11 to suck and compress the spring 10, utilizes the compression force of the spring 10 to apply the trigger force to the trigger button 1701, does not need a mechanical device which is changed into linear motion by rotary motion, and has small volume; the whole trigger device except the sucker 11 is made of cast iron, and other parts are made of light aluminum alloy, so that the weight is light, and the light load requirement is met.
The top cover 1 is a hollow cylinder structure and is provided with an upper bottom surface and a side surface, the power-off electromagnet 9 is cylindrical, the power-off electromagnet 9 and the top cover 1 are coaxially arranged, the power-off electromagnet 9 is fixed on the upper bottom surface of the top cover 1 through a second nut 7 and a stud 8, the type of the second nut 7 is M5 in the embodiment, and the stud 8 is M5 x 40. The diameter of the power-off electromagnet 9 is smaller than that of the top cover 1, a gap is formed between the power-off electromagnet 9 and the side face of the top cover 1, the power-off electromagnet 9 is arranged in the center of the spring 10, and the spring 10 is arranged in the gap around the power-off electromagnet 9.
The bottom cover 2 is provided with a first groove and a second groove which are coaxial; the diameter of the first groove is larger than that of the second groove, and the first groove and the second groove form a coaxial stepped groove with a step surface; the diameter of the first groove is larger than or equal to the outer diameter of the top cover 1, and the top cover 1 is arranged in the first groove; the sucking disc 11 sets up in the second recess, and 11 height of sucking disc equals with the second recess degree of depth, and 11 upper surfaces of sucking disc are parallel with the second recess step face. The bottom surface of the power-off electromagnet 9 exceeds the plane of the lower edge of the top cover 1, so that the lower edge of the top cover 1 is prevented from being abutted against the step surface before suction, and the power-off electromagnet 9 cannot be sucked with the sucking disc 11. When the power-off electromagnet 9 and the sucker 11 are attracted, a small gap is still left between the outer edge of the top cover 1 and the step surface. The bottom of the second groove is provided with a rectangular bulge which is matched with the rectangular groove at the bottom of the sucking disc 11, the sucking disc 11 is fixed on the rectangular bulge through 2 third screws 13, and the third screws 13 are M2 multiplied by 5.
The spring 10 is compressed in the top cover 1 through the attraction of the power-off electromagnet 9 and the sucker 11, the upper end of the spring 10 is propped against the upper bottom surface of the top cover 1, and the lower end of the spring 10 is propped against the step surface of the bottom cover 2. The inner diameter of the spring 10 is larger than the diameter of the power-off electromagnet 9, and the outer diameter of the spring 10 is smaller than the inner diameter of the top cover 1. The length of the spring 10 after being completely compressed is less than the length of the spring 10 compressed in the top cover 1 when the electric magnet is attracted with the sucker 11.
The pneumatic net gun triggering device also comprises a triggering connecting rod 4 and a triggering seat 5; the first end of the trigger connecting rod 4 is connected with the bottom cover 2, and the second end of the trigger connecting rod 4 is connected with the trigger seat 5; the trigger seat 5 is provided above the trigger button 1701 of the pneumatic net gun 17.
The central part outside the bottom surface of the bottom cover 2 is provided with a connecting bulge for connecting with the trigger connecting rod 4, the connecting bulge is of a rectangular structure, and a chamfer angle is arranged at the position contacted with the bottom surface of the bottom cover 2. The connecting protrusion is provided with a rectangular hole, the trigger connecting rod 4 is rectangular, a first threaded hole 401 and a rectangular notch 403 are formed in the first end of the trigger connecting rod 4, a second threaded hole 402 is formed in the second end of the trigger connecting rod 4, the first threaded hole 401 is perpendicular to the axis of the trigger connecting rod 4, and the second threaded hole 402 is parallel to the axis of the trigger connecting rod 4. The connecting protrusion is arranged in the rectangular notch 403, and the first screw 3 passes through the first threaded hole 401 and the rectangular hole to be matched with the first nut 6 to connect the first end of the trigger connecting rod 4 with the bottom cover 2. The first screw 3 model M3 x 10, the first nut 6 model M3. The trigger seat 5 is fixed at the second end of the trigger link 4 through a second screw 12, the second screw 12 is M2 multiplied by 12.
And the corresponding position of the bottom surface of the top cover 1 is provided with a wire outlet hole, and the wire outlet hole can pass through a lead of the power-off electromagnet 9. The power-off electromagnet 9 is provided with magnetic force when not applying 24V voltage at ordinary times, the sucking disc 11 can be sucked, the sucking force is 300N, the compression force of the spring 10 can be controlled to be not more than 70N through calculation and model selection, so that the elasticity of the spring 10 is not enough to overcome the magnetic force, and the whole device can be tightly connected and installed together. When 24V voltage is applied to the power-off electromagnet 9, the magnetic force disappears, the spring 10 springs out the bottom cover 2 downwards, the trigger seat 5 moves downwards, and trigger force is applied to the trigger button 1701, so that the pneumatic net gun 17 is triggered.
The invention adopts the power-off electromagnet 9, after the voltage is switched on, the power-off electromagnet 9 loses magnetism, the bottom cover 2, the trigger connecting rod 4 and the trigger seat 5 move downwards under the action of the force of the spring 10 to impact the trigger button 1701 on the pneumatic net gun 17, thereby completing the triggering. The time from starting to triggering is short, the precision requirement on control is met, the motor is not started or stopped, the condition that the motor is impacted does not need to be considered, the temperature influence cannot be caused, and the triggering device is more reliable.
The outer diameter and the inner diameter of the spring 10 can be well adapted to the inner installation space of the device through model selection, and the magnitude of the compression force can be controlled by controlling the free length of the spring 10, so that the magnitude of the trigger force can be adjusted.
According to actual measurement, the pressing trigger force of the pneumatic net gun 17 is about 50N, so that the spring 10 needs to have a compression force not less than 50N when being compressed in the trigger device, the length of the spring 10 compressed in the trigger device is 29mm, the length of the spring 10 when being completely compressed is not more than 29mm, meanwhile, the compression force cannot exceed the maximum suction force provided by the electromagnet when the spring 10 is compressed in the trigger device, a safety factor of 4 is taken in consideration of phenomena such as dynamic load, demagnetization of the electromagnet and the like, therefore, the compression force of the spring 10 is about 70N reasonably, and the spring 10 is selected according to the boundary conditions.
Considering the limit of the installation space inside the upper clamp 16, the wall thickness of the trigger mechanism and the outer diameter of the power-off type electromagnet 9, the outer diameter of the spring 10 should not exceed 44mm at the maximum, and the inner diameter should not be less than 35mm at the minimum.
The spring stiffness calculation and check formula is shown as formula (1):
Figure BDA0002277408750000091
wherein:
k is the spring rate N/mm
G is spring shear modulus 8 x 10 4 Mpa
d is spring wire diameter mm
n is the effective number of turns of the spring
D is the middle diameter mm of the spring
According to the existing spring 10 shelf product, the outer diameter is 42mm, and the spring 10 with the wire diameter of 3mm meets the requirements on the installation space, so the spring 10 with the outer diameter of 42mm and the wire diameter of 3mm is selected, the effective number of turns of the spring 10 is assumed to be 6, and the rigidity is calculated and checked in the drive-in type (1) as follows:
Figure BDA0002277408750000092
the compression length of the spring 10 is calculated according to equation (2)
Figure BDA0002277408750000101
Wherein:
s is compressed length mm
F is a compressive force N
K is the spring rate N/mm
Calculating the spring compression length
Figure 1
Therefore, the length H of the spring is 29+31 which is 60mm, when the effective number of the spring turns is 6, the length L of the spring after the spring is completely compressed to the position is 3mm 8 which is 24mm < 29mm, and the length requirement of the spring installed in the trigger mechanism is met. Therefore, the final spring model selection specification is 42mm in outer diameter, 3mm in wire diameter, 6 in effective turns and 60mm in free length. The compression force of the spring can be adjusted to a small extent by changing the length of the spring.
The whole trigger device is made of light aluminum alloy, and the model with small volume and strong adsorption force is selected for the selection of the power-off electromagnet 9, so that the whole product has the advantages of small volume phi 45mm multiplied by 51mm and light weight 280 g; the compression force of the spring 10 can be adjusted through the free length of the spring 10 on the basis of the requirement that the spring can be compressed in the inner space of the top cover 1, and the size of the trigger force is adjusted by installing the spring 10 with different free lengths, so that the size of the trigger force can be adjusted in the range of 40N-70N.
When the trigger device works, 24V voltage is applied to two ends of a lead on the power-off electromagnet 9, the power-off electromagnet 9 is demagnetized, and the bottom cover 2, the trigger connecting rod 4 and the trigger seat 5 move downwards under the action of the force of the spring 10 to impact the trigger button 1701 on the pneumatic net gun 17 so as to complete triggering. After triggering, the two ends of the wire on the power-off electromagnet 9 lose 24V voltage, after the unmanned aerial vehicle finishes fighting, the unmanned aerial vehicle returns to the ground, and only the hand overcomes the force of the spring 10 to lift the bottom cover 2 upwards to enable the power-off electromagnet 9 and the sucker 11 to adsorb again to recover the state to be triggered.
Example 2
A pneumatic net gun triggering system, as shown in fig. 5 and 6, comprising the pneumatic net triggering device of embodiment 1, and further comprising an upper clamp 16 and a lower clamp 18; go up anchor clamps 16 and install on unmanned aerial vehicle, pneumatic net rifle trigger device installs in last anchor clamps 16, goes up anchor clamps 16 and is connected with lower anchor clamps 18, and pneumatic net rifle 17 presss from both sides tightly in the round hole that last anchor clamps 16 and lower anchor clamps 18 formed.
The upper clamp 16 is provided with a rectangular groove and a first semicircular groove, and the pneumatic net gun trigger device is arranged in the rectangular groove.
The center of the top of the rectangular groove of the upper clamp 16 protrudes upwards to form a protruding strip 1601, a first opening 1602 is arranged in the center of the protruding strip 1601, the upper end of the stud 8 penetrates through the first opening 1602, and the trigger device is installed in the rectangular groove through the stud 8 and a third nut 15; the second nut 7 of the trigger device enters the protruding strip 1601 so that the upper bottom surface of the trigger device top cover 1 can contact the top of the rectangular groove. The top of the rectangular groove of the upper clamp 16 is also symmetrically provided with two second open holes 1603 relative to the protruding strip 1601, and the fourth screw 14 is screwed into a threaded hole formed in the bottom surface of the top cover 1 through the second open holes 1603, so that the trigger device is further fixed, the trigger device is prevented from rotating relative to the rectangular groove, and the stability of a trigger system is improved.
The wall that rectangular channel and first semicircle shape groove share is provided with through-hole and third recess, and through-hole and third recess coaxial arrangement, the through-hole is used for passing and triggers seat 5, and pneumatic net rifle 17's trigger button 1701 sets up in the third recess.
The lower clamp 18 is provided with a second semicircular groove, and the first semicircular groove and the second semicircular groove are connected to form a circular hole for fixing the pneumatic net gun 17. The upper clamp 16 and the lower clamp 18 are connected by bolts. The first semicircular groove and the second semicircular groove form a regular hexagon structure after the upper clamp 16 and the lower clamp 18 are connected, and the circular hole for fixing the pneumatic net gun 17 is reinforced, so that the trigger system is more stable.
The trigger device adopts the first suction part, the second suction part and the elastic part, and the trigger system adopts the upper clamp 16 and the lower clamp 18 to realize the fixation and connection of the trigger device and the pneumatic net gun 17, thereby avoiding the use of a complex structure, leading the whole structure to be simpler and the reliability to be higher.
Example 3
A method for triggering a pneumatic net gun adopts the pneumatic net gun triggering system in embodiment 2, and comprises the following steps:
step 1, installing a trigger device;
the trigger seat 5 is detached from the trigger connecting rod 4, the trigger connecting rod 4 is detached from the bottom cover 2, and then the trigger device detached from the trigger connecting rod 4 and the trigger seat 5 is fixed in the rectangular groove: the upper end of the stud 8 penetrates through the first opening 1602, the second nut 7 of the trigger device enters the protruding strip 1601, and the trigger device is installed in the rectangular groove through the stud 8 and the third nut 15; the fourth screw 14 is screwed into a threaded hole provided in the upper bottom surface of the top cover 1 through the second opening 1603 to further fix the triggering device. Then the trigger link 4 is mounted on the bottom cover 2 by using the first screw 3 and the first nut 6, finally the trigger seat 5 is passed through the through hole, and the trigger seat 5 is connected on the trigger link 4 by using the second screw 12.
The rectangular groove has a limited height, and the trigger connecting rod 4 and the trigger seat 5 must be detached before the stud 8 passes through the first opening 1602, so that the rest part can be placed in the rectangular groove; after the upper end of the stud 8 passes through the first opening 1602, the height of the rectangular groove occupied by the stud 8 is reduced, the trigger device with the trigger connecting rod 4 and the trigger seat 5 detached integrally moves upwards, and the trigger connecting rod 4 is installed in a sufficient space exposed at the lower end, so that the trigger connecting rod 4 can be installed again.
Step 2, installing a pneumatic net gun 17 and a lower clamp 18; the upper jig 16 and the lower jig 18 are connected by bolts, and the pneumatic net gun 17 is fixed in the round hole.
And 3, applying 24V voltage to the power-off electromagnet 9, eliminating the magnetic force, enabling the bottom cover 2 to move downwards under the action of the spring 10, and enabling the trigger seat 5 to impact the trigger button 1701 of the pneumatic net gun 17 to complete triggering of the pneumatic net gun 17.
After triggering, the two ends of the wire on the power-off electromagnet 9 lose 24V voltage, after the unmanned aerial vehicle finishes fighting, the unmanned aerial vehicle returns to the ground, and only the hand overcomes the force of the spring 10 to lift the bottom cover 2 upwards to enable the power-off electromagnet 9 and the sucker 11 to adsorb again to recover the state to be triggered. The disassembly method is the reverse operation of the installation method.
The installation and disassembly methods of the trigger device and the trigger system are very simple and easy to operate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (5)

1. A pneumatic net gun trigger device of an unmanned aerial vehicle is characterized by comprising a top cover (1), a bottom cover (2), a trigger connecting rod (4), a trigger seat (5), a first suction portion, a second suction portion and an elastic component;
the first suction part is fixed in the top cover (1), and the second suction part is fixed in the bottom cover (2);
the elastic component is compressed in the top cover (1) through the attraction of the first attraction part and the second attraction part; the elastic component is used for applying elastic force to the bottom cover (2) to pop out the bottom cover (2) so that the bottom cover (2) applies trigger force to the pneumatic net gun (17);
the top cover (1) is of a cylindrical structure; the first suction part is arranged in the center of the top cover (1); a gap is arranged between the first suction part and the top cover (1); the elastic component is arranged in a gap between the top cover (1) and the first suction part;
the first attraction part is a power-off electromagnet (9), the second attraction part is a sucker (11), and the elastic component is a spring (10); the power-off electromagnet (9) is attracted with the sucker (11) to compress the spring (10) in the top cover (1); the length of the spring (10) after being completely compressed is smaller than the length of the spring (10) compressed in the top cover (1) when the power-off electromagnet (9) is attracted with the sucker (11); the free length of the spring (10) is adjustable;
the diameter of the power-off electromagnet (9) is smaller than that of the top cover (1), a gap is formed between the power-off electromagnet (9) and the side surface of the top cover (1), and the bottom surface of the power-off electromagnet exceeds the plane where the lower edge of the top cover (1) is located; the power-off electromagnet (9) is arranged in the center of the spring (10), and the spring (10) is arranged in the gap around the power-off electromagnet (9);
the bottom cover (2) is provided with a first groove and a second groove which are coaxial, the diameter of the first groove is larger than that of the second groove, and the first groove and the second groove form a coaxial stepped groove with a step surface;
the top cover (1) is arranged in the first groove, and the diameter of the first groove is equal to the outer diameter of the top cover (1); the second suction part is arranged in the second groove, and when the first suction part and the second suction part are sucked, the lower end of the elastic part can be abutted against the step surface;
the sucker (11) is arranged in the second groove, the height of the sucker (11) is equal to the depth of the second groove, and the upper surface of the sucker (11) is parallel to the step surface of the second groove; a rectangular bulge is arranged at the bottom of the second groove, and a rectangular groove matched with the rectangular bulge is arranged at the bottom of the sucker (11);
the first end of the trigger connecting rod (4) is connected with the bottom cover (2), and the second end of the trigger connecting rod (4) is connected with the trigger seat (5); the trigger seat (5) is arranged above a trigger button (1701) of the pneumatic net gun (17);
a connecting bulge is arranged at the central part outside the bottom surface of the bottom cover (2) and is used for being connected with the first end of the trigger connecting rod (4); the second end of the trigger connecting rod (4) is connected with the trigger seat (5);
in the pneumatic mesh gun trigger device of the unmanned aerial vehicle, the sucker (11) is made of cast iron, and the power-losing electromagnet (9) is made of soft iron or silicon steel and is an iron core; and the other parts are made of aluminum alloy.
2. A pneumatic net gun trigger system for an unmanned aerial vehicle, comprising the pneumatic net gun trigger device of claim 1, and further comprising an upper clamp (16) and a lower clamp (18);
go up anchor clamps (16) and install on unmanned aerial vehicle, pneumatic net gun trigger device installs in going up anchor clamps (16), it is connected with lower anchor clamps (18) to go up anchor clamps (16), pneumatic net gun (17) press from both sides tightly in last anchor clamps (16) and the round hole that lower anchor clamps (18) formed.
3. The pneumatic net gun trigger system of the unmanned aerial vehicle according to claim 2, wherein the upper clamp (16) is provided with a rectangular groove and a first semicircular groove, and the pneumatic net gun trigger device is arranged in the rectangular groove;
the wall that rectangular channel and first semicircle shape groove share is provided with through-hole and third recess, through-hole and third recess coaxial setting, the through-hole is used for passing and triggers seat (5), trigger button (1701) of pneumatic net rifle (17) set up in the third recess.
4. The pneumatic net gun trigger system of unmanned aerial vehicle according to claim 3, characterized in that the lower clamp (18) is provided with a second semicircular groove, and the first and second semicircular grooves form a circular hole for fixing the pneumatic net gun (17).
5. A method for triggering a pneumatic net gun of an unmanned aerial vehicle, which is characterized in that the pneumatic net gun triggering system of any one of claims 2-4 is adopted, and the method comprises the following steps:
step 1, detaching a trigger seat (5) from a trigger connecting rod (4), then detaching the trigger connecting rod (4) from a bottom cover (2), fixing a trigger device with the trigger connecting rod (4) and the trigger seat (5) detached in a rectangular groove, then installing the trigger connecting rod (4) on the bottom cover (2), and finally connecting the trigger seat (5) on the trigger connecting rod (4) through a through hole;
step 2, installing a pneumatic net gun (17) and a lower clamp (18);
and 3, separating the first suction part from the second suction part, enabling the bottom cover (2) to move downwards under the action of the elastic component, and enabling the trigger seat (5) to impact a trigger button (1701) of the pneumatic net gun (17) to complete the triggering of the pneumatic net gun (17).
CN201911133575.XA 2019-11-18 2019-11-18 Pneumatic net gun trigger device, trigger system and trigger method of unmanned aerial vehicle Active CN110926262B (en)

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