CN201460486U

CN201460486U - Lockpicking device of vehicle lock

Info

Publication number: CN201460486U
Application number: CN2009201246111U
Authority: CN
Inventors: 李胜; 虞军
Original assignee: NINGBO XINHONG PRECISION MACHINERY CO Ltd
Current assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Priority date: 2009-07-13
Filing date: 2009-07-13
Publication date: 2010-05-12
Anticipated expiration: 2019-07-13

Abstract

The utility model relates to a lockpicking device of a vehicle lock. The lockpicking device comprises a shell, an electrical motor, a driving gear, a driven gear and a draw bar with an end exposed outside the shell, wherein the electrical motor, the driving gear and the driven gear are arranged in the shell and the driving gear and the driven gear are meshed mutually. The lockpicking device is characterized in that the revolving shaft of the electrical motor is linked with the driving gear through a clutch, the driven gear is arranged on a screw rod with a double-headed screw thread, the screw rod is screwed with a nut which can move along the screw rod and fixedly connected with the draw bar; and a spring is sleeved on the draw bar so that the draw bar has a trend of moving on the side back to the nut. The clutch is adopted and the transmission between the screw rod and the nut is used to ensure that the draw bar can realize linear motion along with the rotation of the electrical motor so as to realize the locking motion of the vehicle door. Therefore, the utility model can conveniently adjust the stroke of the draw bar by means of the displacement of the nut; and in addition, meshing between the double-headed screw thread of the screw rod and the driven gear and driven gear is adopted so as to accelerate the movement speed of the draw bar, increase the transmission efficiency and increase the tensile force of the lockpicking device. Therefore, the utility model is applicable to the full-automatic or semi-automatic vehicle electric lock with long opening travel and high tensile force.

Description

A kind of lockaid gun of Vehicle lock

Technical field

The utility model relates to a kind of lockaid gun, specifically refers to a kind of lockaid gun that slide is locked or rear tailgate is locked in the automobile that is applied in.

Background technology

At present, the middle slide and the car rear tailgate of some commercial vehicles have designed auto-switch function both at home and abroad, in order to cooperate the realization of this function, need a kind of lockaid gun that can open door lock automatically of design, as Chinese patent notice of authorization number for " the automobile luggage boot is locked automatically controlled unlocking apparatus " of CN2332795Y just disclosed so a kind of lockaid gun, it includes electromagnetic valve, unlock switch, cut-off switch, pull bar, linking arm and unblank to collude, during use, the driver presses unlock switch, direct current is added on the electromagnetic valve coil, and the electromagnetic valve action drives pull bar, linking arm moves with unblanking to collude backward, move after unblanking to collude the pulling dead bolt, open luggage case.In the dead bolt fall back process, the button of dead bolt roof pressure cut-off switch, the cut-off switch contact disconnects, and the process of unblanking is finished in the power supply of promptly cutting off the electricity supply.

Also has another patent documentation of the same name, as the Chinese patent notice of authorization number is the unlocking apparatus of CN2380642Y, this unlocking apparatus comprises micromachine, driving gear, roller, reduction gearing, driven wheel, sheave and soft twine and housing, wherein stone dead wire one end is wrapped on the sheave, and the other end of stone dead wire is connected with dead bolt.When unblanking, connect power supply, motor rotates, and driving gear drives roller, reduction gearing, driven wheel and sheave successively and rotates, and along with the rotation of sheave, stone dead wire twines backward, thereby the pulling dead bolt is opened the automobile luggage boot.

Adopt the lockaid gun of above-mentioned two kinds of structures, though can realize the purpose of unblanking, adopt the electromagnet structure, operating current is bigger, poor stability, and the flexible stroke of electromagnet is little, can't regulate, and brings certain difficulty so that give to install to adjust.And the device of employing gear train and stone dead wire, the structure relative complex, transmission efficiency is low, causes its pulling force less.

Existing simultaneously also have some other unlocking apparatus, but it is little to exist unlocking force mostly, and the defective that stroke is short can't satisfy unlocking force requirement full-automatic at present or the semi-automatic electric lock.

The utility model content

Technical problem to be solved in the utility model is at above-mentioned prior art present situation, and the lockaid gun of the big and Vehicle lock that stroke is grown of a kind of novel structure and unlocking force is provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this Vehicle lock lockaid gun comprises shell, be positioned at the motor and the intermeshing driving gear of energy of shell, a driven gear and an end are exposed to the pull bar of shell, it is characterized in that: described machine shaft links by a clutch and described driving gear, described driven gear is installed on the screw mandrel with double thread, also be bolted with the nut that can move and be connected mutually with described pull bar along this screw mandrel on the described screw mandrel, on described pull bar, also be arranged with simultaneously and make described pull bar have the spring of nut side shifting trend dorsad all the time.

Described clutch can be centrifugal clutch, also can be slip clutch.When adopting slip clutch, this slip clutch can be made up of the sleeve that is enclosed within the elastic body on the described machine shaft and match with this elastic body, and described sleeve and above-mentioned driving gear fix, and are set in loosely on the described machine shaft.

As further improvement of the utility model, can also be arranged with the sealing shroud that is positioned at outside the spring on the described pull bar, one end of sealing cover is connected mutually with shell, the other end is fixed on the place, an end of pull bar, to avoid impurity such as dust to invade in the shell, guarantee that lockaid gun can unblank for a long time flexibly.

Described spring can be against on the described shell by an end, and the other end is against the connecting portion place of described sealing shroud and pull bar.Telescopic spring can in time reply pull bar freely like this.

Compared with prior art, because the utility model has adopted clutch, simultaneously by means of the transmission between screw mandrel and the nut, make pull bar can realize that straight line moves with the rotation of motor, to realize the unlocking action of car door, so the displacement that the utility model can be by nut is the stroke of adjusting yoke easily, utilize the double thread and the master of screw mandrel simultaneously, the engagement of driven gear, both can accelerate the translational speed of pull bar, improve transmission efficiency, can strengthen the pulling force of lockaid gun again, thereby make the utility model long applicable to opening travel, full-automatic or the automanual Vehicular electric that pulling force is big is locked.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment;

Fig. 2 is the schematic perspective view of motor, clutch and driving gear among Fig. 1.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As depicted in figs. 1 and 2, this Vehicle lock lockaid gun comprises shell 1, motor 2, clutch 3, driving gear 4, driven gear 5, screw mandrel 6 and pull bar 8, and wherein, shell 1 is assembled by screw by housing 11 and case lid 12; Above-mentioned motor 2, clutch 3, driving gear 4, driven gear 5 and screw mandrel 6 are installed in the enclosure.In the present embodiment, clutch adopts slip clutch, elastic body 31 that this slip clutch is made by the rubber material and the sleeve 32 that matches with this elastic body are formed, elastic body 31 is enclosed within on the rotor 22, rotor is fixed on the machine shaft 21, sleeve 32 fixes with above-mentioned driving gear 4, and is set in loosely on the machine shaft 21, and driving gear 4 can be linked by this clutch and machine shaft 21.Above-mentioned driven gear 5 is installed on the described screw mandrel 6, this screw mandrel 6 has double thread, also be bolted with the nut 7 that is connected mutually with pull bar 8 on this screw mandrel 6, here, one end of pull bar 8 is exposed to shell, matches with the dead bolt of electric lock, and the other end and nut 7 fix, and housing and case lid combination back form the chute that moves for pull bar 8.When screw mandrel 6 rotations, nut 7 is moved axially along screw mandrel 6 like this, be recessed in shell 1, make unlocking action thereby can drive pull bar.

After being recessed in shell 1, can automatically reset at pull bar 8, also be arranged with a spring 9 on pull bar 8, be arranged with undulatory sealing shroud 10 simultaneously outside spring, an end of sealing cover 10 is connected mutually with housing, the other end is fixed on the place, an end of pull bar 8, to play dustproof effect.And spring 9 one ends are against on the side wall of outer shell, and the other end is against the connecting portion place of sealing shroud and pull bar, and pull bar is had all the time to the trend of nut side shifting dorsad.

In the time of need unblanking, starter motor, machine shaft revolves axle, elastic body rotates synchronously thereupon, and under the centrifugal action of rotation at a high speed, elastomeric profile is widened, at this moment, elastomeric profile rubs mutually with sleeve lining, drives driving gear then and rotates, and then driven gear is rotated, make the screw mandrel rotation, under the restriction of chute, nut is along moving in the screw mandrel thereupon, and it is mobile in housing to drive pull bar, compresses spring simultaneously and realizes unlocking action.

When electric lock is opened, the motor outage, elastomeric profile is reduced and is separated with sleeve, at this moment, driving gear stops operating, screw mandrel is no longer linked with machine shaft, at this moment, at the spring restoring force along under the component effect on wire rod thread inclined-plane, the screw mandrel backward rotation, nut is moved outside screw mandrel, drive pull bar and stretch in housing outward, to realize the return of pull bar.

Claims

1. the lockaid gun of a Vehicle lock, comprise shell, be positioned at the motor of shell and the pull bar that the intermeshing driving gear of energy, driven gear and an end are exposed to shell, it is characterized in that: the rotating shaft of described motor links by a clutch and described driving gear, described driven gear is installed on the screw mandrel with double thread, be bolted with the nut that can move and be connected mutually with described pull bar along this screw mandrel on the described screw mandrel, on described pull bar, also be arranged with simultaneously and make described pull bar have the spring of nut side shifting trend dorsad all the time.

2. the lockaid gun of Vehicle lock according to claim 1, it is characterized in that: described clutch is a slip clutch, this slip clutch is made up of the sleeve that is enclosed within the elastic body on the described machine shaft and match with this elastic body, described sleeve and above-mentioned driving gear fix, and are set in loosely on the described machine shaft.

3. the lockaid gun of Vehicle lock according to claim 1 and 2 is characterized in that: also be arranged with the sealing shroud that is positioned at outside the spring on the described pull bar, an end of sealing cover is connected mutually with shell, and the other end is fixed on an end of pull bar and locates.

4. the lockaid gun of Vehicle lock according to claim 3, it is characterized in that: described spring one end is against on the described shell, and the other end is against the connecting portion of described sealing shroud and pull bar.