CN2546577Y

CN2546577Y - Electric machine type radial clutch for door lock

Info

Publication number: CN2546577Y
Application number: CN 02227655
Authority: CN
Inventors: 连厚伟; 黄翔; 王中林
Original assignee: TCL Legrand International Electrical Huizhou Co Ltd
Current assignee: TCL Legrand International Electrical Huizhou Co Ltd
Priority date: 2002-05-16
Filing date: 2002-05-16
Publication date: 2003-04-23
Anticipated expiration: 2012-05-16

Abstract

Disclosed is a motor-type radial clutch for a door lock, comprising a micro motor and the reduction gear of the micro motor, and a drive shaft; a slider push rod and a buffer spring are arranged on the drive shaft; a circular arc jack keeping fit with one end of a drive pin is arranged on the front end of the slider push rod and the other end of the drive pin is positioned in an unlocking cavel and a pinhole on a lever handle shaft sleeve in the unlocking cavel. The drive shaft is fitted with the slider by the buffer spring; when the motor is rotated clockwise or counterclockwise, the slider push rod goes ahead or back along the drive shaft. An offsetting spring is arranged on the drive pin and a bumper pin for preventing the drive pin from deviation is arranged on the unlocking cavel. With simple structure and smooth on-off process, the utility model realizes on and off states by the forward and backward actions of the drive pin and ensures high reliability of parts cooperation and high accurateness of action completing and ensures the lever handle to be in free play in the locking state, thereby the inside parts are effectively protected, the demand to the part production process is not high and the production cost is reduced.

Description

A kind of door lock electricity consumption type radial clutch

Technical field

The utility model relates to a kind of door lock clutch, is meant a kind of door lock electricity consumption type radial clutch especially.

Background technology

Now roughly there are two kinds with motor-driven door lock clutch on the market, the one, directly stir an eccentric wheel as clutch with motor, motor always comes back rotation in less than 120 ° scope, often be in the stall state, make easy damage of motor and noise big, add no reducing gear, the motor output torque does not get a promotion, clutch is stuck easily, and reliability is low; Another kind is to use the driven by motor worm screw, promote finer wire by worm screw and stir clutch-plate, this structure transmission efficiency low clutch is stuck easily, reliability is not high, China's ZL98227399.1 patent " the automatically controlled mortise door lock of clutch type " discloses a kind of door lock of Electric Machine Control that adopts and has just belonged to this type with clutch, this mortise door lock comprises motor, balladeur train, the energy storage torsion spring, screw rod, shift fork, on-of pin, steady pin, axle sleeve, one end of its energy storage torsion spring is enclosed within on the fixed axis, the middle part is pressed on the screw rod, the other end links to each other with balladeur train, but balladeur train is placed on left and right sides translation on the motor cabinet, and on-of pin is contained in axle sleeve and the shift fork, has locating hole on the axle sleeve; Promote the balladeur train translation by an end of torsion spring by swing during use and finish out, lock action, thereby reliability and endurance are low.Simultaneously, also there is a same defective in above-mentioned two kinds of clutch configurations: under the state of locking a door, handle is in stuck state, with internal works for being rigidly connected, if at this moment reverse handle by force, often just cause internal works to damage easily.China's ZL00239418.9 patent " door lock electricity consumption type axial type clutch " discloses the clutch that door lock promptly axially is provided with along handle with axial type, because the thickness of conventional door is limited, operating distance is short, therefore to the intensity and the technological requirement height of each parts, processing and assembly difficulty are big, the cost height.

Summary of the invention

The purpose of this utility model provides a kind of reliability, good endurance, processing and the lower door lock electricity consumption type radial clutch of assembly difficulty.

Designed a kind of door lock electricity consumption type radial clutch according to above-mentioned purpose, comprise and be arranged in the tooth case and be the micro machine and the reducing gear train thereof of support with the tooth case, one end and reducing gear train engagement and the power transmission shaft that is driven by it, power transmission shaft is provided with the slide block transfer bar mechanism, the push rod front end of slide block push rod is provided with a push jack, between one end of push jack and trundle one gap is arranged, the other end of trundle is positioned at the pin-and-hole on the handle axle sleeve of the unblank goat's horn and the goat's horn of unblanking.For being slidingly matched, buffer spring is positioned at the slide block push rod and cooperates with cross pin on the power transmission shaft between the slide block of described power transmission shaft and hollow, at motor just or under the effect of counter-rotating, relies on buffer spring to drive the slide block push rod and advances or retreat along power transmission shaft; And push jack is for remaining the circular arc push jack with the mated condition of trundle.At the trundle middle part one flange-type positioning convex is arranged, be equipped with back-moving spring in this projection and goat's horn one side of unblanking; The goat's horn of unblanking is provided with a backing pin that cooperates and prevent the trundle dislocation with trundle, and backing pin is positioned at the outside of trundle flange-type positioning convex, promptly lays respectively at flange-type positioning convex both sides with back-moving spring.

The utility model is realized clutch by the forward-reverse of trundle, and is simple in structure, the clutch process is smooth and easy, guaranteed the high reliability that parts cooperate and the accuracy of execution, and not high to the technological requirement of parts, and cost of production is minimized.In use, the moment of torsion of motor output is through greatly improving after the reducing gear train; And the employing of buffer spring has guaranteed that motor the scaling loss that stall causes can not occur.Back-moving spring resets accurately trundle, and particularly under the state of locking a door, handle is in idling conditions, only when opening the door under the effect of clutch, trundle just fuses handle and handle axle sleeve, on making handle and internal works being connected, has effectively protected internal works; Trundle will rotate with handle and handle axle sleeve during owing to open the door, and the circular arc push jack has guaranteed that trundle can not reset in the rotation process.

Description of drawings

Accompanying drawing 1 is the component decomposing schematic representation under the utility model confined state.

Specific embodiments

Accompanying drawing has been described an embodiment of the present utility model, as shown.Present embodiment comprises the tooth case of being made up of upper tooth case 1, lower tooth case 5, and micromachine 2, motor reducing gear train 3, this gear train drive power transmission shaft 4 are housed in the tooth case; Be with the slide block push rod 7 of hollow on the power transmission shaft, be equipped with buffer spring 6 on the power transmission shaft in this slide block push rod, there is cross pin to cooperate on the power transmission shaft with buffer spring, because buffer spring is a helical spring, cross pin and buffer spring have constituted screw thread pair, and realize the advance and retreat of slide block push rod by the rotating of motor; The push rod front end of slide block push rod stretches out outside the tooth case, installs on front end and is fixed with circular arc push jack 8, and this push jack and 9 of middle font trundles have an an amount of gap; Be inserted in back-moving spring 10 back on the trundle and insert in the pin-and-holes on the goat's horn 11 of unblanking, backing pin 13 cooperates with flange-type positioning convex on the trundle, detaches the goat's horn of unblanking to prevent trundle; In addition, when closing the door state, the pin-and-hole on the pin-and-hole on the handle axle sleeve and the goat's horn of unblanking is positioned on the same axis.

During work, motor power is passed to power transmission shaft through reduction gearing, under the drive of motor forward or reverse, the slide block push rod on the power transmission shaft on power transmission shaft, advance or retreat and and then drive advancing or retreating of circular arc push jack, thereby finish the indentation of trundle or stretch out.When trundle stretched out, handle axle sleeve and unblank to be between goat's horn idling conditions can not drive the goat's horn of unblanking and rotate and unblank; During the trundle indentation, the handle axle sleeve is blocked by trundle with the goat's horn of unblanking, and can not relatively rotate, and when rotating handle, the goat's horn of unblanking also rotates together, thereby finishes unlocking action.

Claims

1, a kind of door lock electricity consumption type radial clutch, comprise and be arranged in the tooth case and be the micro machine (2) and the reducing gear train (3) thereof of support with the tooth case, one end and reducing gear train engagement and the power transmission shaft (4) that is driven by it, power transmission shaft is provided with slide block push rod (7) mechanism, the push rod front end that it is characterized in that the slide block push rod is provided with a push jack (8), between one end of push jack and trundle (9) gap is arranged, the other end of trundle is positioned at the pin-and-hole on the handle axle sleeve (12) of the goat's horn of unblanking (11) and the goat's horn of unblanking.

2, clutch according to claim 1, it is characterized in that between the slide block of power transmission shaft and hollow for being slidingly matched, buffer spring (6) is positioned at the slide block push rod and cooperates with cross pin on the power transmission shaft, at motor just or under the effect of counter-rotating, rely on buffer spring to drive the slide block push rod and advance or retreat along power transmission shaft.

3, clutch according to claim 1 is characterized in that described push jack is for remaining the circular arc push jack with the mated condition of trundle.

4,, it is characterized in that there is a flange-type positioning convex at described trundle middle part, is equipped with back-moving spring (10) in this projection and goat's horn one side of unblanking according to claim 2 or 3 described clutches.

5, clutch according to claim 4, the goat's horn that it is characterized in that unblanking are provided with a backing pin (13) that cooperates and prevent the trundle dislocation with trundle, and backing pin is positioned at the outside of trundle flange-type positioning convex.