CN201224384Y

CN201224384Y - Novel theft-proof automatic braking device

Info

Publication number: CN201224384Y
Application number: CNU2008200665876U
Authority: CN
Inventors: 王广保
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-22
Filing date: 2008-04-22
Publication date: 2009-04-22
Anticipated expiration: 2018-04-22

Abstract

Disclosed is a novel anti-theft automatic braking device, which is a necessary device used to replace the hand brake during emergencies such as foot brake failure or parking of vehicles, and the device comprises a direct current motor, a piston, an oil cylinder, a gear lead screw transmission device, a closed circuit and the like. The positive and inverted rotation of the direct current motor can be controlled by a key switch through the closed circuit, a gear of the motor is matched with a reduction gear, the internal thread of the reduction gear is occluded with the external thread of a piston lead screw, two sealing oil rings are arranged on a lengthening piston, a pressure switch disposed at the front end of a cylinder body is communicated with the inside of the cylinder body, a limit switch is arranged at the rear end of the piston lead screw, and a limit groove is disposed on the piston lead screw to be matched with a limit pin on a gear box cover. The utility model can achieve the purposes of braking and releasing of brake through rotating the key to control the positive and inverted rotation of the motor. The utility model has advantages of unique conception, advanced technique, simple structure and broad application.

Description

The novel anti-theft dead-man's device

Affiliated technical field

The present invention is the brake and theft-proof device of various oil brakes.

Background technology

Present parking of automobile parking brake, both inconvenience was also dangerous, offender's start a car that breaks glass, the parking brake that the comes loose automobile that can drive away.After using the utility model, with prior art, the offender wants to open automotive lock and is difficult to, unique method is destroyed brake fluid line exactly, so not only dangerous but also prolonged crime time, the offender can think thrice before acting, and removes hand brake device with high costs simultaneously, not only economy but also practicality have some other electric anti-thief device incomparable advantage.

Summary of the invention

The objective of the invention is to design a kind of simple and practical brake and theft-proof device, utilize automatically controlled hydraulic control principle with the vehicle pinning of when parking, braking, to strengthen the antitheft vehicle structure that simplifies.

The implementation of the utility model purpose is: as shown in Figure 1 and Figure 2, this device is made up of DC machine 1, change speed gear box 2, motor gear 3, reducing gear 4, oil cylinder 5, seal oil ring 6, pressure switch 7, oil outlet 8, cylinder body 9, oil inlet 10, piston 11, change speed gear box 12, spacing cotter way 13, piston screw mandrel 14, limit switch 15 and airtight circuit diagram 2.Cylinder body 9 connects together with gearbox body 2, DC machine 1 connects together with gear shift cover 12, there is locating dowel pin 13 to cooperate the location on gear shift cover 12 centre holes with position-limited trough on the piston screw mandrel 14, cylinder body 9 front ends have pressure switch 7, pressure switch is communicated with oil cylinder 5, and piston screw mandrel 14 is same integral body with piston 11, and two seals oil ring 6 is arranged on the lengthened piston 11, there is limit switch 15 piston screw mandrel 14 rear ends, and the contact connects together in circuit and the automotive lock.

The utility model can be when stopping or drive, and the Push And Release by automotive lock kills vehicle and pins or the brake that comes loose, novel, advanced technology, simple in structure, economical and practical, and any oil brake all can reequip or install.

Description of drawings

Accompanying drawing 1 is structural representation of the present invention and hydraulic control schematic diagram, and accompanying drawing 2 is electrical control circuit figure of the present invention.

The specific embodiment

The utility model divides Fig. 2 to constitute by hydraulic control partial graph 1 and electric control part, and hydraulic control part DC machine 1 is firm with gear shift cover 14 usefulness screws; DC machine gear 3 and reducing gear 4 interlocks; Reducing gear 4 negative threads and piston screw mandrel outside thread coincide; Change speed gear box 12 pore location have position-limited trough 13 interlocks on a locating dowel pin 13 and the piston screw mandrel 14, prevent that reducing gear 4 from driving piston 11 and rotating when rotating; There are outside thread and cylinder body 9 negative threads fastening on the gearbox body 2; Two seals oil ring 6 is arranged on the lengthened piston 11, and the forward end seal oil ring time prevents that in brake brake solution from overflowing from oil inlet 10, and back-end sealing oil ring 6 prevents that brake solution from overflowing from cylinder body 9 rear ends; Pressure switch 7 is communicated with oil cylinder 5, fasten with screws, seal ring sealing; Automatically controlled part is come opening and closing of contact in the control lock by key rotation lock core.

During parking, turn off key, contacting in the lock, DC machine 1 starts, rotate drive piston screw mandrel 14 by reducing gear 4 and promote pistons 11 reaches, brake solution in the oil cylinder 5 is injected brake by oil outlet 8, cut off oil inlet 10 simultaneously, when reaching certain pressure, pressure switch 7 is cut off the power supply automatically, DC machine 1 stops operating, and piston 11 stops reach, and brake is in packing state; Pressure switch 7 was recovered energising when brake pressure reduced, and DC machine 1 drives piston 11 and continues reach, reaches pressure and stops.Make brake be in packing state all the time so repeatedly.

When starting vehicle: open key, another contacting in the lock, the DC machine counter-rotating, rotate drive piston screw mandrel 14 travelling backwards pistons 11 brake solution by reducing gear 4 and return oil cylinder 5 by oil outlet 8, brake comes loose, automatically cut off the power supply when piston screw mandrel 14 turns back to limit switch 15, DC machine 1 stops to migrate.Move after piston 11 stops, opening oil inlet simultaneously, brake fluid line is got through.

Claims

1, the novel anti-theft dead-man's device is by DC machine (1), change speed gear box (2), motor gear (3), reducing gear (4), oil cylinder (5), seal oil ring (6), pressure switch (7), oil outlet (8), cylinder body (9), oil inlet (10), piston (11), gear shift cover (12), spacing cotter way (13), piston screw mandrel (14), limit switch (15) and circuit are formed, it is characterized in that cylinder body (9) and gearbox body (2) are to connect together, motor (1) connects together with gear shift cover (12), there is locating dowel pin (13) to cooperate with position-limited trough (13) on the gear shift cover (12) with piston screw mandrel (14), cylinder body (4) front end has pressure switch (7), lengthened piston has the two seals oil ring on (11), there is limit switch (15) piston screw mandrel (14) rear end, and switch contact connects together in circuit and the key switch lock.