Patent Application
20120168468
1. Field of the Invention
The present invention relates to the field of a pepper sprayer, and more particularly to an automatic pepper sprayer for burglarproof system.
2. Description of Related Art
In general, a vehicle burglarproof system or a house burglarproof system generally includes different detectors, a controller, alarms, and a networking box. The detectors are respectively mounted on different entrances, such as door, window etc., and the controller is electronically connected to the detectors and the alarms. The controller drives the alarms to output lighting or audio alarm and outputs the alarm signal through the networking box to notify the security guard when any one of the detectors outputs abnormal status.
However, the vehicle burglarproof system and the house burglarproof system outputs only lighting or audio alarm to scare off to scare off criminals without having an active defense means. Thus, the safety of the present burglarproof system is not good.
To overcome these shortcomings, the present invention provides an automatic pepper sprayer for burglarproof system to mitigate or obviate the aforementioned problems.
The main objective of the present invention is to provide an automatic pepper sprayer that spray pepper liquid to an illegal person after receiving an alarm signal from a burglarproof system.
The automatic pepper sprayer for burglarproof system has a casing, a pepper air cylinder mounted inside a lower space of the casing and a solenoid mounted inside an upper space of the casing. A spray nozzle of the pepper air cylinder is aligned with an opening of the casing that is communicated with the lower space. A lower part of a shaft of the solenoid protrudes from a bottom side to presses against the spray nozzle of the pepper air cylinder. The solenoid is driven the upper part of the shaft is attracted downwardly when the burglarproof system detects abnormal signal. At the time, the lower part of the shaft further extends downwardly to press the spray nozzle, so the spray nozzle sprays the pepper air outwardly through the opening of the casing.
Based on the foregoing description, the burglarproof system using the automatic pepper sprayer has an active defense capability.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The casing 10 has an upper space 11, a lower space 12 and an opening 121 defined through the casing 10 and communicated with the lower space 121.
The pepper air cylinder 20 mounted inside the lower space 12 of the casing 10 and has a bottle body 21 with pepper air and a L-shaped spray nozzle 22 with an air outlet 221. The air outlet 221 of the spray nozzle 22 is aligned with the opening 121 of the casing 10. When the spray nozzle 22 is pressed downwardly, the spray nozzle 22 sprays the pepper air outwardly through the opening 121 of the casing 10.
The solenoid 30 is mounted inside the upper space 11 and has a housing 31, a shaft 32, a coil 33, a taper spring 34 and two power wires 35. The shaft passes through the housing 31 and has two ends. One end protrudes from a top side 311 of the housing 31 to press against to a top face inside the upper space 11 of the casing 10, and the other end protrudes from a bottom side 312 of the housing 31 to presses against the spray nozzle 22. The coil 33 mounted around a part of the shaft 32 inside the housing 31 and electronically connected to the power wires 35. The taper spring 34 is mounted around a part of the shaft 32 protruded from the topside 311 of the housing 31. A small end 341 of the taper spring 34 is mounted to the part of the shaft 32 protruded from the top side 311 of the housing 31 by a C-ring 36, a large end 342 freely presses against the top side 311 of the housing 31.
With reference to
The controller 40 has a processor 41, a transistor 42, a diode 421 and power connector 43. The transistor 42 is electronically connected to DC power (+12V) in serial through the diode 421 and driven by the processor 41. The power connector 43 is connected to the DC power (+12V) and the transistor 42 and used to connect to the power wires 35 of the solenoid 41. When the processor 41 drives the transistor 42 to turn on, the DC power (+12V) outputs to the power wires 35 through the power connector 43. On the contrary, when the transistor 42 turns off, the DC power (+12V) is not output to the power wire 35. Further the processor 41 determines to drive the transistor 42 to turn on or off based on detecting signal from the burglarproof system.
With further reference to
With reference to
Based on the foregoing description, the automatic pepper sprayer is combined with burglarproof system, so that the burglarproof system has an active measure to increase safety of the burglarproof system.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
