CN2759864Y

CN2759864Y - Anti-theft device for automobile

Info

Publication number: CN2759864Y
Application number: CNU200420105191XU
Authority: CN
Inventors: 蒋富强
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-19
Filing date: 2004-11-19
Publication date: 2006-02-22
Anticipated expiration: 2014-11-19

Abstract

The utility model relates to a theft-proof device for automobiles. A power supply, a power supply lock, a control circuit and a drive circuit are electrically connected in sequence. A key head on an electronic key is matched with a key hole on the power supply lock. A cipher input keyboard and the control circuit are connected in a signal transmission mode. The drive circuit is connected with a motor. The output terminal of the motor is connected with a variable-speed transmission mechanism which is connected with a lock sheet (11). One end of the lock sheet (11) is arranged in a radial guide slot (1c) of an inner cavity of a lock body (1). The lock body (1) is a pipeline structure. The inner cavity of the lock body (1) is matched with an engine gas inlet channel or gas exhaust channel or oil feeding channel. The utility model uses electromechanical combination principles, and controls the engine gas inlet channel or gas exhaust channel or oil feeding channel through the lock sheet. The whole theft-proof device is not easy to damage by thieves, adopts the power supply lock and ciphers to do dual-recognition control, and makes the theft-proof effect comprehensive and reliable.

Description

Alarms and security systems for automobiles

Technical field

The utility model belongs to the vehicle anti-theft technical field, more particularly, relates to a kind of alarms and security systems for automobiles.

Background technology

Along with the raising of people's living standard, automobile has been become people's walking-replacing tool gradually by luxury, and automobile pollution improves constantly, and stolen phenomenon is serious day by day but the thing followed is an automobile.At this problem, people have used many methods to solve, normally design the various locks of various machineries, electronics or dynamo-electric mating type, come certain or certain the several key positions on the automobile are locked, modal as power supply lock, handle lock, hublock, brake lock etc., they are easy to be destroyed by burglar's recruitment tool, locked parts are restored to the original state and car is driven away, do not have real antitheft effect, use cumbersome yet.

In recent years, the normal operation that people begin to try every possible means by the control driving engine reaches antitheft purpose, as control its normal ignition, control its normal fuel injection etc., and it is auxilliary in oscillatory type sound and light alarm and cipher anti theft electronic lock, as publication number is 1521066, open day is on August 18th, 2004, the Chinese invention patent application that name is called " alarms and security systems for automobiles that prevents to use driving engine " discloses a kind of alarms and security systems for automobiles by control driving engine normal fuel injection, it is mainly by controller, break-make executive item and break-make executive circuit are formed, the break-make executive item is a kind of switch, it is connected electrically on the pull up circuit of vehicle fuel Oil pump electrical machinery, and break-make executive item and break-make executive circuit are installed in the fuel tank inner chamber or are installed in second cavity that is communicated with fuel oil fuel tank inner chamber.Therefore this anti-joyride device has certain anti-theft effect because the installation site is comparatively hidden, in case but the burglar knows this antitheft principle, is easy to Oil pump electrical machinery be resumed work by the short circuit mode, therefore still fundamentally do not reach reliable theft-proof purpose.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of alarms and security systems for automobiles is provided, be easy to be destroyed to solve existing alarms and security systems for automobiles, and be easy to recover the functionating of automobile after destroyed, thereby fundamentally do not play the technical matters of antitheft effect by the burglar.

For this reason, alarms and security systems for automobiles described in the utility model, comprise power supply, the power supply lock, electron key, cipher inputting keyboard, control circuit, driving circuit, power supply wherein, the power supply lock, control circuit and driving circuit are electrically connected successively, key bit and unlocking signal transmitting terminal are arranged on the electron key, the key hole that key bit and power supply are locked is complementary, cipher inputting keyboard is that the signal transmission is connected with control circuit, control circuit is by the unlocking signal acceptor circuit, the key identification circuit, cryptochannel and commutation time delay circuit are formed, driving circuit links to each other with motor, the mouth of motor links to each other with variable transmission mechanism, be connected with locking plate on this variable transmission mechanism, one of locking plate is arranged in the radially guide groove of lock body inner chamber, and lock body is a pipeline configuration, and its inner chamber and engine inlets or exhaust duct or oil input channel are suitable.

Above-mentioned variable transmission mechanism can be made of miniature gears, big gear wheel and screw rod, wherein miniature gears is installed in the mouth of motor, big gear wheel is installed in an end of screw rod, miniature gears and big gear wheel engagement, the other end of screw rod stretches into the pilot hole of locking plate, and the top of pilot hole is provided with negative thread and matches with screw rod.

Lock body in the utility model can be connected on engine inlets or exhaust duct or the oil input channel, or directly itself and engine inlets or exhaust duct or oil input channel is cast as an integral body.The key bit of electron key inserts in the key hole of power supply lock, and rotation makes it to put in place, make the control circuit energized, press the button on the electron key, transmitter module circuit in the electron key sends unlocking signal by the unlocking signal transmitting terminal, unlocking signal acceptor circuit in this unlocking signal Be Controlled circuit receives, and discerned by the key identification circuit and to be triggered the cryptochannel action after the processing again, this moment is by the correct unlocking pin of cipher inputting keyboard input, correct unlocking pin signal triggers the action of commutation time delay circuit through cryptochannel, and commutation time delay circuit may command motor carries out forward or reverse.Motor drives the locking plate motion by variable transmission mechanism, thus make one of locking plate radially guide groove enter in the lock body inner chamber and the gas channel of combustion cutoff, or radially guide groove withdraws from the lock body inner chamber and opens the gas channel of driving engine.When the gas channel of locking plate combustion cutoff or oil input channel, driving engine can't normal starting.Since lock body be arranged to driving engine inlet and outlet road or oil input channel on, position latent relatively close being difficult for found that by the burglar even find, also need elevator could remove, whole physical construction can use the pick-proof bolt, with the difficulty of increase dismounting.If the burglar destroys it with rude and unreasonable means, will make locking plate stuck in lock body and bring bigger difficulty to pilferage.Also can set up the triggering voice guard, adopt violence to remove to avoid the burglar.Come in addition dual identification control no matter release still locks all by power supply lock and password, therefore make whole anti-joyride device more comprehensively, reliable, fundamentally played theft-proof effect.

The beneficial effects of the utility model are: use dynamo-electric combination principle, break-make by locking plate control driving engine inlet and outlet road or oil input channel, whole anti-joyride device is not easy to be destroyed by the thief, and adopts power supply lock and password to come in addition dual identification control, make anti-theft effect more comprehensively, reliable.

Description of drawings

Fig. 1 is an overall structure scheme drawing of the present utility model (released state);

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the front view (profile status) of lock body 1 among Fig. 1;

Fig. 4 is the birds-eye view of Fig. 3;

Fig. 5 is the left view of Fig. 3;

Fig. 6 is the right elevation of Fig. 3;

Fig. 7 is the B-B cutaway view of Fig. 3;

Fig. 8 is the front view of protective cover 2 among Fig. 1;

Fig. 9 is the birds-eye view of Fig. 8;

Figure 10 is the C-C cutaway view of Fig. 8;

Figure 11 is the front view of locking plate 11 among Fig. 1;

Figure 12 is the D-D cutaway view of Figure 11;

Figure 13 is a functional block diagram of the present utility model;

Figure 14 is the scheme drawing of unlocking signal acceptor circuit 10a in the circuit of unlocking signal transmitting terminal 14b and the control circuit 10 on the electron key 14 in the utility model;

Figure 15 is the scheme drawing of cryptochannel 10c in the utility model control circuit 10;

Figure 16 is the schematic circuit diagram of cipher inputting keyboard 15 in the utility model;

Figure 17 is the scheme drawing of commutation time delay circuit 10d in the utility model.

The specific embodiment

Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:

As Fig. 1, Fig. 2 and shown in Figure 13, the utility model is by power supply 12, power supply lock 13, electron key 14, cipher inputting keyboard 15, control circuit 10, driving circuit 3, motor 4, variable transmission mechanism, lock body 1, locking plate 11 and protective cover 2 constitute, wherein power supply 12, power supply lock 13, control circuit 10 and driving circuit 3 are electrically connected successively, key bit 14a and unlocking signal transmitting terminal 14b are arranged on the electron key 14, key hole 13a on key bit 14a and the power supply lock 1 is complementary, cipher inputting keyboard 15 is connected for the signal transmission with control circuit 10, control circuit 10 is by unlocking signal acceptor circuit 10a, key identification circuit 10b, cryptochannel 10c and commutation time delay circuit 10d form, driving circuit 3 links to each other with motor 4, the mouth of motor 4 links to each other with variable transmission mechanism, be connected with locking plate 11 on this variable transmission mechanism, one of locking plate 11 is arranged among the radially guide groove 1c of lock body 1 inner chamber, lock body 1 is a pipeline configuration, its inner chamber and engine inlets suitable (also can be designed to the exhaust duct or the oil input channel of driving engine suitable).

Can find out from Fig. 1, Fig. 2: above-mentioned variable transmission mechanism is made of miniature gears 5, big gear wheel 8 and screw rod 7, wherein miniature gears 5 is installed in the mouth of motor 4, big gear wheel 8 is installed in an end of screw rod 7, miniature gears 5 and big gear wheel 8 engagements, the other end of screw rod 7 stretches into the pilot hole 11a of locking plate 11, the top of pilot hole 11a is provided with negative thread and matches with screw rod 7, and Figure 11 and Figure 12 show the concrete structure of locking plate 11.Miniature gears 5, big gear wheel 8 and screw rod 7 realize that the output of motor 4 turns to and reduction of speed, screw rod 7 pilot hole 11a at locking plate 11 under the drive of big gear wheel 8 rotates, because screw rod 7 up-and-down movements are limited, the rotation of locking plate 11 is limited, so the rotating campaign of screw rod 7 can drive pumping of locking plate 11.

As Fig. 2, Fig. 3, Fig. 4, Fig. 5, Figure 6 and Figure 7, have on the above-mentioned lock body 1 with the support platform 1e of inner chamber axis parallel and from this support platform 1e vertical locking plate guide holder 1f that stretches out upwards, locking plate guide holder 1f is provided with locking plate pilot hole 1g, locking plate pilot hole 1g communicates with the inner chamber of lock body 1, and the both sides of this locking plate pilot hole 1g link to each other with radially guide groove 1c in lock body 1 inner chamber, and locking plate 11 is installed among this locking plate pilot hole 1g.Locking plate 11 can pump in locking plate pilot hole 1g.

Also can find out from Fig. 3, Fig. 4, Fig. 5 and Fig. 6: the both sides of locking plate guide holder 1f are provided with left and right

stay bearing plate

1a, 1b, wherein the circuit card of control circuit 10 is installed on the left stay bearing plate 1a, and the circuit card of motor 4 and driving circuit 3 is installed in right stay bearing plate 1b and goes up (as Fig. 1).

As shown in Figure 1 and Figure 2, protective cover 2 is installed on the support platform 1e of lock body 1, the lower end of protective cover 2 is provided with position-limited trough 2a, position-limited trough 2a is stuck on the positive stop lug boss 1d of support platform 1e, the upper inside wall of protective cover 2 is extended with location cylinder 2b downwards, and the upper end of screw rod 7 is stretched among the cylinder 2b of location, and is provided with extension pin 6 on the inserting end of screw rod 7, the bottom of location cylinder 2b has the convenient pin 6 bar hole 2c that withdraw from that hang, and Fig. 8, Fig. 9 and Figure 10 show the concrete structure of protective cover 2.Protective cover 2 is used to protect the safety of whole mechanical action such as motor 4, miniature gears 5 big gear wheels 8, screw rod 7 and locking plate 11 system, and protective cover 2 and support platform 1e are connected contact surface heat-insulating and sealing spare can be set.Moving up and down of pin 6 restriction protective covers 2 hung in the rotation of positive stop lug boss 1d restriction protective cover 2, therefore protective cover 2 can not be opened easily, increased the burglar and adopted violence to attempt the difficulty of release.

Also can find out from Fig. 1, Fig. 2: the locking plate guide holder 1f upper end of lock body 1 is provided with sealing locking closure 9, and screw rod 7 passes the hole on the sealing locking closure 9.Sealing locking closure 9 is enclosed in locking plate 11 among the locking plate pilot hole 1g of locking plate guide holder 1f, both locking plate 11 has been carried out spacingly, has also increased locking plate 11 ruined difficulty.

Figure 14 is the scheme drawing of unlocking signal acceptor circuit 10a in the circuit of unlocking signal transmitting terminal 14b on the electron key 14 and the control circuit 10, Figure 15 is the scheme drawing of cryptochannel 10c in the control circuit 10, Figure 16 is the schematic circuit diagram of cipher inputting keyboard 15, and Figure 17 is the scheme drawing of commutation time delay circuit 10d.Because the each part mentioned above circuit all is prior aries, does not describe at this.

Principle of work: when automobile is in the lock state when needing release, the key bit 14a of electron key 14 inserts among the key hole 13a of power supply lock 13, and rotating electron key 14 is rotated in place key bit 14a, control circuit 10 energized 12, press the button 14c on the electron key 14, transmitter module circuit in the electron key 14 sends unlocking signal by unlocking signal transmitting terminal 14b, unlocking signal acceptor circuit 10a in this unlocking signal Be Controlled circuit 10 receives, and discerned by key identification circuit 10b and to be triggered cryptochannel 10c action after the processing again, this moment is by the correct unlocking pin of cipher inputting keyboard 15 inputs, correct unlocking pin signal triggers commutation time delay circuit 10d action through cryptochannel 10c, and commutation time delay circuit 10d rotates by driving circuit 3 drive motor 4.Motor 4 drives screw rods 7 by ingear miniature gears 5 and big gear wheel 8 and rotates, and 7 of screw rods drive locking plate 11 upward movements, thus make one of locking plate 11 radially guide groove 1c leave lock body 1 inner chamber, open the gas channel of driving engine; In the time of need locking automobile when stopping, the fwd course of action is identical, different is when importing correct locking password by cipher inputting keyboard 15, correct locking code signal triggers commutation time delay circuit 10d action through cryptochannel 10c, and commutation time delay circuit 10d is by driving circuit 3 drive motor 4 backward rotation.Motor 4 drives screw rod 7 backward rotation by ingear miniature gears 5 and

big gear wheel

8,7 of screw rods drive locking plate 11 and move downward, thereby make one of locking plate 11 radially guide groove 1c enter the gas channel of lock body 1 inner chamber with combustion cutoff, driving engine can't normal starting.Because lock body is arranged to be integral with engine inlets (also can be designed to be integral with the exhaust duct or the oil input channel of driving engine), be not easy destroyed, if the burglar destroys it with rude and unreasonable means, will make locking plate stuck in lock body and bring bigger difficulty to pilferage.Come in addition dual identification control no matter release still locks all by power supply lock and password, therefore make whole anti-joyride device more comprehensively, reliable, fundamentally played theft-proof effect.

Claims

1, a kind of alarms and security systems for automobiles, comprise power supply (12), power supply lock (13), electron key (14), cipher inputting keyboard (15), control circuit (10), driving circuit (3), power supply (12) wherein, power supply lock (13), control circuit (10) and driving circuit (3) are electrically connected successively, key bit (14a) and unlocking signal transmitting terminal (14b) are arranged on the electron key (14), key bit (14a) is complementary with the key hole (13a) that power supply is locked on (13), cipher inputting keyboard (15) is connected for the signal transmission with control circuit (10), control circuit (10) is by unlocking signal acceptor circuit (10a), key identification circuit (10b), cryptochannel (10c) and commutation time delay circuit (10d) are formed, it is characterized in that: driving circuit (3) links to each other with motor (4), the mouth of motor (4) links to each other with variable transmission mechanism, be connected with locking plate (11) on this variable transmission mechanism, one of locking plate (11) is arranged in the radially guide groove (1c) of lock body (1) inner chamber, lock body (1) is a pipeline configuration, and its inner chamber and engine inlets or exhaust duct or oil input channel are suitable.

2, alarms and security systems for automobiles according to claim 1, it is characterized in that: described variable transmission mechanism is made of miniature gears (5), big gear wheel (8) and screw rod (7), wherein miniature gears (5) is installed in the mouth of motor (4), big gear wheel (8) is installed in an end of screw rod (7), miniature gears (5) and big gear wheel (8) engagement, the other end of screw rod (7) stretches into the pilot hole (11a) of locking plate (11), and the top of pilot hole (11a) is provided with negative thread and matches with screw rod (7).

3, alarms and security systems for automobiles according to claim 2, it is characterized in that: have on the described lock body (1) with the support platform (1e) of inner chamber axis parallel and from this support platform (1e) vertical locking plate guide holder (1f) that stretches out upwards, locking plate guide holder (1f) is provided with locking plate pilot hole (1g), locking plate pilot hole (1g) communicates with the inner chamber of lock body (1), and the both sides of this locking plate pilot hole (1g) link to each other with radially guide groove (1c) in lock body (1) inner chamber, and locking plate (11) is installed in this locking plate pilot hole (1g).

4, alarms and security systems for automobiles according to claim 3, it is characterized in that: the both sides of locking plate guide holder (1f) are provided with left and right stay bearing plate (1a, 1b), the circuit card of control circuit (10) is installed on the left stay bearing plate (1a), and the circuit card of motor (4) and driving circuit (3) is installed on the right stay bearing plate (1b).

5, alarms and security systems for automobiles according to claim 3, it is characterized in that: on the support platform (1e) of lock body (1) protective cover (2) is installed, the lower end of protective cover (2) is provided with position-limited trough (2a), position-limited trough (2a) is stuck on the positive stop lug boss (1d) of support platform (1e), the upper inside wall of protective cover (2) is extended with location cylinder (2b) downwards, the upper end of screw rod (7) is stretched in the location cylinder (2b), and on the inserting end of screw rod (7), being provided with extension pin (6), the bottom of location cylinder (2b) has convenient the extension and sells the bar hole (2c) that (6) are withdrawed from.

6, alarms and security systems for automobiles according to claim 3 is characterized in that: locking plate guide holder (1f) upper end of lock body (1) is provided with sealing locking closure (9), and screw rod (7) passes the hole on the sealing locking closure (9).