CN1077949C - Automotive centrally controlled door lock - Google Patents

Abstract

The present invention relates to an automotive centrally-controlled door lock. A motor is arranged in a casing, the drive shaft of the motor is provided with a clutch assembly, and a clutch drives a gear which drives a leading screw rod screwed with a draw rod and driving the draw rod to lift and fall. The gear is sheathed on the output shaft of the motor, the outer end of the gear is fixedly clamped on a clamping spring, and the upper end of the clamping spring forms a bulge extending horizontally and outward. The drive shaft of the motor is provided with a clutch seat in the position adjacent to the outer end of the gear, and more than one movable bolt arranged in the clutch seat can be moved by the centrifugal force along a perforation on the clutch seat. The clutch mechanism has the advantages of simple structure, handiness, sensitivity and small door lock size.

Description

Automobile central authorities control door lock

The present invention relates to a kind of vehicle doorn with lock, is the central control of a kind of automobile door lock specifically.

All be provided with central authorities' control door lock at present on the car, but the depression bar on the pull bar driving automobile door of this control door lock is done the action of lifting, to open or the closed door lock.And this depression bar is except that can be by the control of this door lock, also can be at the car external application key lock of outwarding winding, or by the people in car with the mode of pushing or the mode of pull-up, make this depression bar do the action of lifting.Avoid the rotation of motor drive shaft to produce induced-current for making when the manual operation, so in the preferable automobile control door lock of quality, be provided with the member of clutch action, as the utility model patent 96218001 of the applicant in first to file, " automobile central authorities control door lock ", its structure as shown in Figure 1, it is by there being a motor 10 transmissions one driving screw 11, and spiral shell is provided with and moves seat 12 on this driving screw 11, and this moves seat 12 is done lifting by the rotation of driving screw 11 action.Should move in the lifting action of seat, but pushing drawing rod 13 is done synchronous action.Wherein should move on the seat 12 two springs 14 must be set, to hold two protruding parts 15 respectively, this protruding part 15 is the main member that promotes this pull bar 11.As the complex structure of the moving member 12 of clutch, volume is bigger in this kind door lock, thus relatively this pull bar 11, housing 16 also should be bigger.

The object of the present invention is to provide a kind of automobile central authorities control door lock, make that its clutch is simple in structure, light and handy sensitive, can make other associated transmission mechanism simplify simultaneously, and further dwindle the door lock volume.

The object of the present invention is achieved like this: the central control of a kind of automobile door lock, in a housing, be provided with a motor, one clutch pack is set on the driving shaft of this motor, this clutch transmission one gear, this gear drive one driving screw, driving screw screw togather a pull bar and drive the action that it does lifting, it is characterized in that described clutch component is to constitute like this, geared sleeve places on the output shaft of motor, and the outer end of this gear fixes a jump ring, and the upper end of this jump ring is for outwards making horizontally extending protuberance; The outer end place of this gear of next-door neighbour is because of establishing a clutch base on the driving shaft of this motor, is provided with in this clutch base more than onely can produce mobile movable bolt according to centrifugal force, and this activity bolt moves along the perforation on the clutch base.

Purpose of the present invention also can be realized by following measure, be separated into upper and lower two spaces in this clutch base, this upper and lower space content is put a pressure-proof spring and a movable bolt, this two pressure-proof spring is pressed on a movable bolt in the clutch base separately, and this clutch base respectively establish a perforation up and down, with allow this up and down an end of two movable bolts stretch out in this clutch base; Described housing is made of upper and lower casing, the leakage packing ring of between upper and lower casing, setting up defences, this leak-proof gasket set-up mode is, upper peripheral edge at lower house is provided with caulking groove, be embedded this leakproof pad in it, upper and lower casing is sealed to be suppressed in this leak-proof gasket, and this leak-proof gasket covers the telescopic that closes outside this pull bar in cooperation; Be provided with a microswitch in the lower house on the next door of described driving screw, an end of being made the pull bar of stretching motion by the driving screw drive is provided with a horizontal ledge, presses when this horizontal ledge moves and touches this microswitch; Can increase by a temperature sensing device in the rear of motor or the motor, or current sensing means; Described driving screw can be triple thread.

Operating principle of the present invention is, when motor moves, two movable bolts up and down in this clutch base are subjected to the compacting of pressure-proof spring, and convex shape not, so when outside car, opening the lock with the key or in car, manually push depression bar on the car door, and when making this depression bar shackle rod do the action of lifting, can drive motor, make operation more light and handy sensitive, and can not make generation induced-current in the motor.

The present invention is when ordering about motor running with remote controller, upper and lower two movable bolts in this clutch base protrude from the upper and lower end of this clutch because of action of centrifugal force, and stir the protuberance of the jump ring on this gear by the movable bolt in rotating, make this gear and this clutch do synchronous rotation.

In sum, the present invention analyses effect and is, and is simple in structure, and transmission is more light and handy quick, thereby reaches purpose of the present invention.

The explanation of accompanying drawing drawing:

Fig. 1 prior art constructions schematic diagram;

Fig. 2 is a three-dimensional exploded view of the present invention;

Fig. 3 is a sectional drawing of the present invention;

Fig. 4 is the exploded view of clutch pack among the present invention;

Fig. 5 is not state diagram during transmission of clutch pack of the present invention;

Fig. 6 is the state diagram of clutch pack driven gear of the present invention transmission.

It is as follows to describe the present invention in detail below in conjunction with embodiment and accompanying drawing thereof;

As shown in Figures 2 and 3, the present invention is provided with a motor 20 in a housing 60, on the driving shaft 21 of this motor 20 clutch pack is set, this clutch transmission one gear 30, this gear 30 transmissions one driving screw 40, driving screw 40 screws togather a pull bar 41 and drives the action that it does lifting.

See also Fig. 3 and shown in Figure 4, clutch component of the present invention is to constitute like this, and gear 30 is placed on the output shaft 21 of motor 20, and the outer end of this gear 30 fixes a jump ring 31, and the upper end of this jump ring 31 is for outwards making horizontally extending protuberance 32.The place, outer end of this gear 30 of next-door neighbour is provided with a clutch base 50 on the driving shaft 21 of this motor 20, be separated into upper and lower two spaces 51,52 in this clutch base 50, a ccontaining pressure- proof spring 55,56 and one movable bolt 53,54 in this upper and lower space 51,52, this two pressure- proof spring 55,56 is pressed on a movable bolt 53 and 54 in the clutch base separately, and this clutch base 50 respectively establish a perforation 57,58 up and down, up and down two movable bolts 53 and an end of 54 stretch out in this clutch base 50 to allow this.When 21 rotations of motor 20 driving shafts, this upper and lower two movable bolt 53,54 overcomes the pressure of pressure-proof spring because of action of centrifugal force, and by the perforation up and down 57 of this clutch base 50 and 58 and protrude from outside the clutch seat 50, protrude from upper and lower jump ring 31 and the protuberance 32 that two movable bolts 53 and 54 outside the clutch base are stirred this gear 30 by this, promptly drive this gear 30 and rotate.

And do not do when action when motor 20, the two movable bolts 53 and 54 up and down in this clutch base 50 are subjected to neutralizing of pressure- proof spring 55,56, and convex shape not, as shown in Figure 5.And when outside car, opening the lock with the key or in car, manually push depression bar on the car door, (this depression bar is located on the car door, and is not shown in the figures), depression bar reverse drive pull bar 41 is done the action of lifting.The lifting action of pull bar 41 can make driving screw 40 rotate, but these driving screw 40 travelling gears 30 rotate.Because gear is to be placed on the driving shaft 21 of motor, so the driving shaft 21 of relative this motor 20 of the rotation of this gear 30 is idle running.So manual side's operating vehicle door is done to open or during the action of locking, driving shaft 21 that can drive motor 20 makes operation more light and handy sensitive, and can not make generation induced-currents in the motor 20.

The present invention is when ordering about motor 20 runnings with remote controller, upper and lower two movable bolts 53,54 in this clutch base 50 protrude from the upper and lower end of this clutch 50 because of action of centrifugal force, and stir the protuberance 32 of the jump ring on this gear 30 by the movable bolt 53,54 in rotating, as shown in Figure 6, make this gear 30 do synchronous rotation with this clutch 50.The two groups of pressure- proof springs 55,56 that are provided with in this clutch base 50 and the effect of movable bolt 53,54.Except keeping these motor 20 driving shafts balance external when rotated, and can make this activity bolt 53,54, can stir this jump ring 31, more to raise the efficiency rotating in the 180 degree angles.

Housing 60 of the present invention is to be made of upper and lower casing 61 and 62, and the Lou packing ring 63 of setting up defences between upper and lower casing makes this housing 60 have preferable water proofing property.Its set-up mode is, is provided with caulking groove 64 at the upper peripheral edge of lower house 62, is embedded with this leakproof pad 63 in the caulking groove 64, suppresses this leak-proof gasket 63 by upper and lower casing 61 and 62 more sealedly, can produce the effect of leakproof.This leak-proof gasket covers the telescopic 65 that closes outside this pull bar 41 in 63 cooperations, can produce splendid drip-preventing function.

Be provided with a microswitch 70 in the lower house on the next door of this driving screw 40, and drive and an end of making the pull bar 41 of stretching motion is provided with a horizontal ledge 42 by driving screw 40.When pull bar 41 moved with driving screw 40, this horizontal ledge 42 can be pressed touch this microswitch 70, can make door lock by controlled door lock, as right front door lock, becomes the main control door lock, and promptly arbitrary door lock can drive remaining three door lock.

Be under unexpected situation, not being damaged of motor 20 in the protection housing, increase by a temperature sensing device in rear that can motor among the present invention or the motor, or current sensing means.

Because clutch structure of the present invention is to utilize a kind of action of centrifugal force, and 41 on this driving screw 40 and pull bar need not dispose any other member with clutch effect, so the screw thread of this driving screw 40 can be designed to triple thread, make the ascending, descending action of pull bar 41 more sensitive rapidly.In addition, the volume of each power driving module need not excessive, so can reduce the volume and the weight of automobile control door lock.

Claims (7)

1, the central control of a kind of automobile door lock, in a housing, be provided with a motor, one clutch pack is set on the driving shaft of this motor, this clutch transmission one gear, this gear drive one driving screw, driving screw screw togather a pull bar and drive the action that it does lifting, it is characterized in that described clutch component is to constitute like this, geared sleeve places on the output shaft of motor, and the outer end of this gear fixes a jump ring, and the upper end of this jump ring is for outwards making horizontally extending protuberance; The outer end place of this gear of next-door neighbour is provided with a clutch base on the driving shaft of this motor, is provided with in this clutch base more than onely can produce mobile movable bolt according to centrifugal force, and this activity bolt moves along the perforation on the clutch base.

2, right will be shown the central control of 1 described a kind of automobile door lock, it is characterized in that being separated in described this clutch base upper and lower two spaces, this upper and lower space content is put a pressure-proof spring and a movable bolt, this two pressure-proof spring is pressed on a movable bolt in the clutch base separately, and this clutch base respectively establish a perforation up and down, with allow this up and down an end of two movable bolts stretch out in this clutch base.

3, the central control of a kind of automobile according to claim 1 door lock is characterized in that described housing is made of upper and lower casing, the leakage packing ring of setting up defences between upper and lower casing.

4, the central control of a kind of automobile according to claim 3 door lock, it is characterized in that described leak-proof gasket set-up mode is, upper peripheral edge at lower house is provided with caulking groove, be embedded this leakproof pad in it, upper and lower casing is sealed to be suppressed in this leak-proof gasket, and this leak-proof gasket covers the telescopic that closes outside this pull bar in cooperation.

5, the central control of a kind of automobile according to claim 1 door lock, it is characterized in that being provided with a microswitch in the lower house on next door of described this driving screw, and an end of being made the pull bar of stretching motion by the driving screw drive is provided with a horizontal ledge, presses when this horizontal ledge moves and touches this microswitch.

6, a kind of automobile according to claim 1 central authorities control door lock is characterized in that can increasing by a temperature sensing device in the rear of described motor or the motor, or current sensing means.

7, the central control of a kind of automobile according to claim 1 door lock is characterized in that described driving screw can be triple thread.

Images