CN2589606Y

CN2589606Y - Handle door lock safety pin

Info

Publication number: CN2589606Y
Application number: CN 02258296
Authority: CN
Inventors: 吴洪畴
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-04
Filing date: 2002-11-04
Publication date: 2003-12-03
Anticipated expiration: 2012-11-04

Abstract

The utility model relates to a safety lock head of a handle door lock, which comprises a basic body, a lock core and a rotating shaft with a knob, wherein, the lock core and the rotating shaft with a knob are arranged in the basic body. An action cam provided with a key groove is arranged in a gap in the middle of the basic body and is connected with the rotating shaft, and the center of the action cam is provided with a hole. One end of a connecting piece provided with a spline matches with the action cam, and the other end of the connecting piece matches with the lock core movably. A pressure spring is arranged between the rotating shaft and the connecting piece, and the rotating shaft is hollow. A safety push rod with a restoring spring is arranged in the rotating shaft to match with the rotating shaft movably, an axial clamping device is arranged between the safety push rod and the rotating shaft, one end of the safety push rod is exposed, and the inner end of the safety push rod corresponds to the end surface of the connecting piece to form a push rod type safety mechanism. As long as the utility model is pressed into the safety push rod, the safety function can be played. The utility model has the advantages of convenient use, reliable performance, simple structure, good versatility and convenient installation and production. Besides, the safety mechanism is completely arranged in the lock head, which can not affect the dimension specification of the lock head, and the utility model can realize the safety function under the condition that the structure of the existing handle door lock does not need changing.

Description

Handle-door lock insurance tapered end

Technical field: the utility model relates to a kind of tapered end of handle-door lock.

Background technology: the tapered end of handle-door lock is generally installed lock cylinder, action by lock core control cam is unblanked, but the no safeties of general handle-door lock tapered end itself, if handle-door lock need insurance function must be outside tapered end design insurance device in addition, complex structure is various, and intercommunity is poor, needs to change to produce to adorn to take technology, and install and use inconvenience, can't transform existing handle-door lock.

Summary of the invention: at the deficiencies in the prior art, it is a kind of simple in structure that the utility model provides, the handle-door lock insurance tapered end of highly versatile.

The utility model comprises matrix and places the lock core of one end, the rotating shaft of band knob places the matrix other end, the action cam then places the breach at matrix middle part to be connected with rotating shaft, the center drilling of action cam also is provided with keyway, one of the connector and the action cam that are provided with spline cooperate, other end and lock core are movable to be cooperated, between rotating shaft and connector, be provided with holddown spring, rotating shaft hollow, the insurance push rod of band back-moving spring place rotating shaft move to cooperate and and rotating shaft between be provided with axial positioner, one end of this insurance push rod exposes, and the inner end then constitutes push-down insurance institution with connector end face correspondence.

The utility model is as long as can back down connector by the push rod that insures, it can't be cooperated with the action cam, rotational lock core also can't be unblanked, and uses easily dependable performance, simple in structure, and insurance institution is built in the tapered end fully, can not influence the dimensions of tapered end, and versatility is good, do not need that existing handle-door lock is carried out structural change and can realize insurance function, install convenient for production.

Further specify the utility model below in conjunction with drawings and Examples.

Description of drawings: Fig. 1 is the structural representation of embodiment in the insurance disarm state;

Fig. 2 is the structural representation of embodiment at the insurance starting state;

Fig. 3 is the A-A sectional view of Fig. 2.

Embodiment: as shown in the figure, end at matrix 1 is built-in with lock core 4, the rotating shaft 2 of band knob 3 places matrix 1 other end, 5 on cam of action places the breach at matrix 1 middle part to be connected with rotating shaft 2, the center drilling of action cam 5 also is provided with

keyway

10,8 one of the connectors and the action cam 5 that are provided with spline 9 cooperate, and other end and 4 movable cooperations of lock core, are provided with holddown spring 11 between rotating shaft 2 and connector 8.Rotating shaft 2 hollows, the insurance push rod 6 of band back-moving spring 7 place rotating shaft 2 to move to cooperate and and rotating shaft 2 between be provided with axial positioner, an end of insurance push rod 6 exposes, the inner end then with connector 8 end face correspondences.Axially positioner can adopt structures such as internal-gear type, present embodiment is provided with long groove 13 at rotating shaft 2 sidewalls, the slide block 12 that is embedded on the insurance push rod 6 places long groove 13 to move cooperation, this slide block 12 is provided with screens and rises as high as the banks 14, is provided with elasticity card grain 15 and its cooperation formation in the relevant position of matrix 1.

When unblanking, the user withstands connector 8 outdoors key being penetrated from lock core 4, its power of offsetting holddown spring 11 is moved inwards and the keyway 10 of action cam 5 is connected, key can rotating connector 8 and action cam 5 unblank.Equally, the user is turning knob 3 in door, also can unblank being connected of cam 5 with action by rotating shaft 2.When insuring push rod 6, connector 8 can be withstood in the inner end of insurance push rod 6, makes it can't move and move cam 5 and is connected, even can twist lock core 4 by force like this, also can't drive and move cam 5 and unblank.When the user when turning knob 3 is unblanked, insurance push rod 6 and slide block 12 also turn an angle thereupon, elasticity card grain 15 and screens are risen as high as the banks 14 stagger, insurance push rod 6 spring 7 that can be reset is released, insurance automatically terminates.

Present embodiment also is provided with elasticity positioning bead 16 in matrix 1, the corresponding depression that is provided with cooperates formation knob positioner on the outer wall of rotating shaft 2, the location is accurate after rotating like this, and the keyway 10 of the spline 9 of connector 8 and action cam 5 keeps the correspondence position state easily.Be connected with tack pin 17 on connector 8, the head of this tack pin 17 contacts with lock core 4 inner ends, and connector 8 does not contact with lock core 4 inner ends like this, installs easily.

Claims

1, a kind of handle-door lock insurance tapered end, comprise matrix and place the lock core of one end, the rotating shaft of band knob places the matrix other end, the action cam then places the breach at matrix middle part to be connected with rotating shaft, the center drilling of action cam also is provided with keyway, one of the connector and the action cam that are provided with spline cooperate, other end and lock core are movable to be cooperated, between rotating shaft and connector, be provided with holddown spring, it is characterized by: rotating shaft (2) hollow, the insurance push rod (6) of band back-moving spring (7) place rotating shaft (2) move to cooperate and and rotating shaft (2) between be provided with axial positioner, one end of this insurance push rod (6) exposes, and the inner end then and connector (8) end face is corresponding constitutes push-down insurance institution.

2, handle-door lock insurance tapered end according to claim 1, it is characterized by: be provided with long groove (13) at rotating shaft (2) sidewall, the slide block (12) that is embedded on the insurance push rod (6) places long groove (13) to move cooperation, this slide block (12) is provided with screens and rises as high as the banks (14), is provided with elasticity card grain (15) and the axial positioner of its cooperation formation in the relevant position of matrix (1).

3, handle-door lock insurance tapered end according to claim 1 and 2 is characterized by: also be provided with elasticity positioning bead (16) in matrix (1), the corresponding depression that is provided with cooperates formation knob positioner on the outer wall of rotating shaft (2).

4, handle-door lock insurance tapered end according to claim 1 and 2, it is characterized by: be connected with tack pin (17) on the connector (8), the head of this tack pin (17) contacts with lock core (4) inner end.

5, handle-door lock insurance tapered end according to claim 3, it is characterized by: be connected with tack pin (17) on the connector (8), the head of this tack pin (17) contacts with lock core (4) inner end.