CN101246626A

CN101246626A - Micro-motion anti-theft alarm

Info

Publication number: CN101246626A
Application number: CNA2007103047315A
Authority: CN
Inventors: 宋磊
Original assignee: BEIJING RUTIAN TECHNOLOGY Co Ltd
Current assignee: BEIJING RUTIAN TECHNOLOGY Co Ltd
Priority date: 2007-12-29
Filing date: 2007-12-29
Publication date: 2008-08-20

Abstract

The present invention provides a micro acoustic burglar alarm, including a microswitch, a warning circuit and an annunciator, the microswitch is set with two wire connecting terminals connecting the annunciator, the input of the warning circuit connects the annunciator, the microswitch includes a case, a fixing bulb tube, the head bulb is located in the center of the case, extending upwards along the case axes, the inner covers with multiple commutate head bulbs connected in orders, the warning circuit maybe the power supply circuit of loudspeaker and alarm lamp, also maybe microprocessor, and setting with computer network or wireless data communication network access quipment, processing remote alarming by the computer network and the wireless data communication network. The invention selects different detecting threshold according to the real needs to reduce omission and misinformation, mainly used for vibrating signal collecting element of all kinds of electronic monitoring system especially an anti=theft system.

Description

Micro-motion anti-theft alarm

Technical field

The present invention relates to a kind of micro-motion anti-theft alarm, can be used for little vibration alarming of various stationary objects, belong to electronic technology field.

Background technology

The micro-motion anti-theft alarm is common panalarm, it is simple in structure, easy to use, detect sensitive, can be used for from the burglar alarm of various occasions such as automobile, safety cabinet, valuables, door and window, after the thief contacts monitored object, so the microswitch vibration, trigger warning circuit, cause warning.Common type of alarm have many in, report to the police from the report to the police network of complexity and radio communication of simple loudspeaker, various type of alarms all have various warning circuits and alarm, one of them important element is exactly a microswitch, require microswitch under specific occasions, discern and gathers should with the vibration signal of warning, when Oscillation Amplitude no show alarm criteria, wrong report should not appear, when Oscillation Amplitude reaches alarm criteria, should not occur failing to report, and should have good reliability and very low failure rate, and be subjected to such environmental effects little, be difficult for disturbed and destruction.Therefore the microswitch that relies on physical construction to gather micro-vibration signal is exactly a selection that becomes people, but under the prior art, the mechanical type microswitch often has only single vibration detection threshold value, for example Chinese 02139525.X patent specification discloses such microswitch, it is by a plastic casing and the heading pole socket with electric conductivity, gland in movable, the plastics gland is threaded and draws lead and form, heading bar on the described heading pole socket is connected with the sleeve pipe of the rubber umbrella that embeds conducting ring, expose on the heading bar of sleeve pipe and place conducting sphere, the periphery of rubber umbrella is cooperated with retracing spring in the gland in two snap ring clampings and the activity of being fixed on, inside and outside put and all have the locking vallecular cavity, be good for showing to get rid of to lock in the clamping in the vallecular cavity central pivot point hole on shell, so that praise and lock under the strong effect at the return bullet, microswitch is opened and closed freely, realize deploying troops on garrison duty and withdrawing a garrison of supervisory system, this microswitch can be installed in safety cabinet, on the still lives such as door and window, as long as extraneous this still life that touches, cause the microswitch vibration, conducting sphere just can roll to any direction, drop between rubber umbrella and the interior gland, thus circuit is connected, thus the purpose of monitoring automatically.That this microswitch has is cheap, it is easy to assembly, highly sensitive to make and advantage such as not electricity consumption during warning.This single detection threshold makes microswitch use in practice be subjected to very big restriction, when element threshold value during greater than required threshold value, phenomenon can appear failing to report, when element threshold value during less than required threshold value, therefore the microvibration of environmental factor initiation causes wrong report again, has also limited little burglar alarm application in practice of shaking thus.

Summary of the invention

For overcoming the above-mentioned defective of prior art, the invention provides micro-motion anti-theft alarm, adopt this burglar alarm to select different detection thresholds according to actual needs, fail to report and report by mistake with minimizing.

This clearly demarcated technical scheme is: a kind of micro-motion anti-theft alarm, comprise multi-shift microswitch, warning circuit and alarm, described microswitch is provided with two connection terminals, insert described warning circuit, the input of described warning circuit connects described alarm, and described microswitch comprises shell, fixing heading pipe, and described heading pipe is positioned at the central authorities of described shell, extend upward along housing axis, its inside also is with some many grades of heading pipes that flexibly connect successively successively.

This microswitch also comprises inner sleeve and conducting sphere, the bottom of described fixedly heading pipe is connected with described shell, be evenly distributed with some bars around it, the inner end of described each face bar and described fixedly heading pipe top are hinged, extend to the direction of shell wall the outer end, the upper surface middle part of each face bar is provided with conductive layer, the below of face bar is provided with a connection rod set that is hinged and is formed by two connections, the outer end of described connection rod set is hinged on the below, middle part of respective face bar, the inner end is hinged on the sidewall of described heading pipe, described shell inboard also is provided with a slip ring with its clearance fit, be provided with the spring that it is upwards pushed up below the described slip ring, the upper end contacts with the outer end of described each face bar, described inner sleeve is positioned at described housings, flexibly connect with described shell, its lower surface contacts with described slip ring, and described conducting sphere is positioned at the housing cavity of each face bar top.

The principle of work of described microswitch is: the conducting sphere of microswitch is placed on the heading pipe, inner sleeve is moved down, press down the outer end of each face bar by slip ring, the face bar of making from inside to outside on the direction to declivity, each face bar constitutes a conical surface shape, adjust the height on each many grades heading pipe tops in the fixing heading pipe successively, the many grade heading pipes corresponding with the corresponding vibration detection threshold or the top end face of fixing heading pipe are raise, supporting described conducting sphere, this microswitch is fixed on the detected object, in case this object vibration amplitude meets or exceeds the relevant detection threshold value, conducting sphere will fall from corresponding heading pipe, be pressed on part face masthead face and the inner sleeve inside surface, so that connect inner wiring, this microswitch back panel wiring can be by two kinds of selections, a kind of is that selection face bar quantity is even number, each face bar upper surface may with face that conducting sphere contacts on electric conductor is set, two connection terminals of microswitch alternately connect described electric conductor on each face bar respectively by lead, conducting sphere falls behind down, be pressed in simultaneously above two adjacent face bars, thus the electric conductor of these two face bars is connected, two connection terminals of microswitch have also just been connected, also can be again the inner sleeve inside surface of side wall may with face that conducting sphere contacts on the electric conductor of annular is set, one of two connection terminal that make microswitch connect electric conductor on each face bar by lead, another is by the electric conductor on the lead connection inner sleeve, and the conducting sphere that falls like this can be connected two connection terminals equally.After setting the threshold value of microswitch, burglar alarm is installed in or is positioned on the monitored object, when this object is moved in theft, will cause the microswitch vibration, trigger or the connection warning circuit, cause the burglar alarm warning.

Because being provided with a plurality of heading pipes of socket successively, microswitch of the present invention (comprises fixing heading pipe, wherein innermost heading pipe can be solid), the apex area of different heading pipes varies in size, conducting sphere is placed heading Guan Shanghou, a heading pipe apex area hour conducting sphere falls easily, the threshold value that detects vibration is just little, conducting sphere was not easy to fall when heading pipe apex area was big, the threshold value that detects vibration is just big, thus by a plurality of heading pipes are set, make microswitch have a plurality of vibration detection threshold values, satisfy different detection needs, this burglar alarm is used for burglar alarm, that both can avoid causing because of alarm threshold value is excessive fails to report, that can avoid again causing because of alarm threshold value is too small fails to report, and helps promoting the use of in practice.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the cross-sectional view of microswitch of the present invention.

Embodiment

Referring to Fig. 1 and Fig. 2, the invention provides a kind of micro-motion anti-theft alarm, comprise multi-shift microswitch, warning circuit and alarm, described microswitch is provided with two connection terminals, insert described warning circuit, the input of described warning circuit connects described alarm, described microswitch comprises shell 6, fixing heading pipe 11, inner sleeve 2 and conducting sphere 3, the setting of described fixedly heading pipe in the enclosure, axis along shell extends upward, its bottom is connected with described shell, be evenly distributed with some bars 14 around it, its the inside is socketed with many grades of heading pipes 9 of some mutual flexible connections successively, 10, the inner end of described each face bar and described fixedly heading pipe top are hinged by hinge 15, described each hinge can be arranged on the same installing ring, extend to the direction of shell wall the outer end of described each face bar, the upper surface middle part of each face bar is provided with conductive layer 5, the below of face bar is provided with a connection rod set 12 that is hinged and is formed by two connections, the outer end of described connection rod set is hinged on the below, middle part of respective face bar, the inner end is hinged on the sidewall of described heading pipe, described shell inboard also is provided with a slip ring 13 with its clearance fit, be provided with the spring (not shown) that it is upwards pushed up below the described slip ring, the upper end contacts with the outer end of described each face bar, described inner sleeve is positioned at described housings, flexibly connect with described shell, its lower surface contacts with described slip ring, and described conducting sphere is positioned at the housing cavity of each face bar top.

Described inner sleeve can be provided with the outer tube wall that is trapped among described enclosure, and be threaded with described housing, its connect can the inner sleeve main part with screw thread outside surface, also can be arranged on the inside surface of its outer tube wall, the connection on the corresponding described shell is with screw thread can set within it surface or outside surface.

Described each face bar and corresponding connecting rod group and fixing heading pipe have constituted four-bar mechanism just, can realize face bar different angles in the enclosure by the height of regulating the inner sleeve lower end thus, face to face bar from inside to outside direction extend upward, conducting sphere will be stabilized in heading pipe top, be in inoperative.

Described heading pipe (comprising fixing heading pipe and each many grades heading pipes) is socket successively, the bottom of each pipe of heading a ball can connect successively by engage thread, wherein the lower end of each many grades heading pipes is provided with

dish cap

7,8 separately, the dish cap that can manually rotate each many grades heading pipes moves up the heading pipe, blocked by the heading pipe of its outside until the dish cap, the position that forms thus this heading pipe limits, so that the vibration detection threshold value that acquisition deposits at qualifying bit.Be the accuracy of regulating, select for use each many grades heading pipes of certain many grades its outsides of heading Guan Shiying elder generation to be adjusted to the extreme higher position, the pipe of should heading a ball the again position of turning up full blast, and the position on the top of each many grades heading pipes in guaranteeing in it is enough low, can not contact with conducting sphere.

As required, can the inner sleeve inside surface of side wall may with face that conducting sphere contacts on the electric conductor 4 of annular is set so that satisfy corresponding wiring requirement.

Claims

1. micro-motion anti-theft alarm, comprise multi-shift microswitch, warning circuit and alarm, it is characterized in that described microswitch is provided with two connection terminals, insert described warning circuit, the input of described warning circuit connects described alarm, and described microswitch comprises shell, fixing heading pipe, and described heading pipe is positioned at the central authorities of described shell, extend upward along housing axis, its inside also is with some many grades of heading pipes that flexibly connect successively successively.

2. micro-motion anti-theft alarm as claimed in claim 1, it is characterized in that described warning circuit is the power circuit of loudspeaker and alarm lamp, or microprocessor, described microprocessor is connected with computer network or wireless data communication network road access device, by computer network and wireless data communication network and remote alarms devices communicating.

3. micro-motion anti-theft alarm as claimed in claim 1 or 2, it is characterized in that also comprising inner sleeve and conducting sphere, the bottom of described fixedly heading pipe is connected with described shell, be evenly distributed with some bars around it, the inner end of described each face bar and described fixedly heading pipe top are hinged, extend to the direction of shell wall the outer end, the upper surface middle part of each face bar is provided with conductive layer, the below of face bar is provided with a connection rod set that is hinged and is formed by two connections, the outer end of described connection rod set is hinged on the below, middle part of respective face bar, the inner end is hinged on the sidewall of described heading pipe, described shell inboard also is provided with a slip ring with its clearance fit, be provided with the spring that it is upwards pushed up below the described slip ring, the upper end contacts with the outer end of described each face bar, and described inner sleeve is positioned at described housings, flexibly connects with described shell, its lower surface contacts with described slip ring, and described conducting sphere is positioned at the housing cavity of each face bar top.

4. micro-motion anti-theft alarm as claimed in claim 3 is characterized in that described inner sleeve is provided with the outer tube wall that is trapped among described enclosure, and is threaded with described housing.

5. micro-motion anti-theft alarm as claimed in claim 4 is characterized in that being connected with screw thread of described inner sleeve and shell is arranged on the outside surface of inner sleeve main part and the inside surface of shell.

6. micro-motion anti-theft alarm as claimed in claim 4 is characterized in that being connected with screw thread of described inner sleeve and shell is arranged on the inside surface of outer tube wall of inner sleeve and the outside surface of shell.

7. micro-motion anti-theft alarm as claimed in claim 4 is characterized in that described each face bar and corresponding connecting rod group and fixing heading pipe constitute four-bar mechanism.

8. micro-motion anti-theft alarm as claimed in claim 3 is characterized in that described heading pipe is socket successively, and the bottom of each pipe of heading a ball connects successively by engage thread, and the lower end of described each many grades heading pipes is provided with dish cap separately.

9. micro-motion anti-theft alarm as claimed in claim 8, it is characterized in that described bar quantity is even number, each face bar upper surface is provided with electric conductor, and two connection terminals of this microswitch alternately connect described electric conductor on each face bar respectively by lead.

10. micro-motion anti-theft alarm as claimed in claim 8, it is characterized in that described each face bar upper surface is provided with electric conductor, described inner sleeve inside surface of side wall is provided with the electric conductor of annular, and two connection terminals of this microswitch connect described electric conductor on each face bar and the annular electric conductor on the inner sleeve side wall inner surfaces respectively by lead.