CN201771264U

CN201771264U - Mortise lock square bolt locking mechanism

Info

Publication number: CN201771264U
Application number: CN2010202894824U
Authority: CN
Inventors: 黄李俊; 肖钧
Original assignee: Hangzhou Jinzhima Industrial Co Ltd
Current assignee: Hangzhou YixinAn Industrial Co., Ltd.
Priority date: 2010-08-12
Filing date: 2010-08-12
Publication date: 2011-03-23
Anticipated expiration: 2020-08-12

Abstract

The utility model discloses a mortise lock square bolt locking mechanism. A mortise lock comprises a casing, a square bolt and a knob are arranged inside the casing, a concave notch is formed on the lateral surface of an inner section of the square bolt, and a shifting cam fixedly arranged on the knob is arranged on one side of the concave notch of the square bolt. A security block arranged inside the casing comprises a security head, a connecting plate and a rotary shaft, the rotary shaft is fixedly connected with one end of the connecting plate, the other end of the connecting plate is fixedly connected with the security head, a first lateral surface of the security head is planar, and a section on the upper portion of a second lateral surface opposite to the first lateral surface is planar while a lower section is arc-shaped in an outwardly projecting manner. The first lateral surface of the security head matching with the concave notch of the square bolt can be placed into the concave notch, and the second lateral surface matching with the shifting cam contacts with the shifting cam in an abutting manner. The rotary shaft is rotationally positioned inside the casing, a torsion spring is sleeved outside the rotary shaft, one side of the torsion spring is abutted into the casing, and the other side of the torsion spring is abutted to the security head. The mortise lock square bolt locking mechanism adopts the technical scheme with simple structure and firm locking, and can reliably lock the square bolt of the mortise lock.

Description

The lock pin side of lock tongue locking mechanism

Technical field

The utility model belongs to lockset manufacturing technology field, particularly a kind of lock pin side of lock tongue locking mechanism.

Background technology

The square tongue locking mechanism of existing lock pin lock, referring to Fig. 9,10, stirring cam 3 ' is rotated and is swung by the key drive of outside or inner knob 4 ', its swing makes safeguard 1 ' move up and down again, and the tapered end 1-1 ' that makes safeguard 1 ' enters or the lockhole of the side's of disengaging tongue 2 ', reaches the purpose of locking or the side's of releasing tongue 2 '.Prior art adopts moving up and down of safeguard 1 ' to lock or the side's of releasing tongue 2 ', and the shortcoming of its existence is: safeguard can not stably be positioned in the lock body, thereby the locking of square tongue is unreliable.

Summary of the invention

In order to solve the problems of the technologies described above, the utility model provides a kind of side's tongue to lock the reliable lock pin side of lock tongue locking mechanism.

In order to achieve the above object, the utility model is taked following technical scheme: the lock pin side of lock tongue locking mechanism, described lock pin lock comprises housing, square tongue, knob, be provided with movable side's tongue and rotary type knob in the housing, the inner segment side of described side's tongue forms concave notches, described knob sets firmly one and stirs cam, stirs a side of the cam side of being located at tongue concave notches; Establish a safety block in the described housing, it comprises insurance head, connecting plate, rotating shaft, and rotating shaft and connecting plate one end are fixedly linked, the fixedly connected insurance head of the other end of connecting plate, first side of insurance head is plane, and second side surface opposite top is plane for one section, and hypomere is the arc shape of raised type; First side of insurance head is suitable and can insert wherein with the concave notches of square tongue, described second side and stir cam and match and contact; Be positioned within the housing described rotating shaft rotary type, rotating shaft overcoat one torsion spring, one side the peaking in the housing of torsion spring, the another side of torsion spring withstands the insurance head.

Preferably, described insurance capitiform becomes a holding tank, inserts the another side of described torsion spring in the holding tank.Further preferred, described insurance head, connecting plate and rotating shaft are one-body molded.

Further preferred, the independent moulding of described rotating shaft, it is fixedly installed on the connecting rod.

The utility model is for solving square tongue locking problem of unstable in the existing design, and it has adopted a kind of simple in structure and lock firm technical scheme, and the square tonguing row of lock pin lock is locked reliably.

Description of drawings

Fig. 1 is the structural representation of the utility model lock pin side of lock tongue locking mechanism released state.

Fig. 2 is the structural representation of the utility model lock pin side of lock tongue locking mechanism safety position.

Fig. 3 is the structure chart of safety block.

Fig. 4 is the lateral view of safety block.

Fig. 5 is the stereogram of safety block.

Fig. 6 is the structure chart of torsion spring.

Fig. 7 is the lateral view of torsion spring.

Fig. 8 is the stereogram of torsion spring.

Fig. 9 is prior art constructions figure.

Figure 10 is the safeguard structure chart of prior art.

The specific embodiment

Following structure accompanying drawing elaborates to the utility model.

Shown in Fig. 1-8, the lock pin lock comprises housing 5, square tongue 1, torsion spring 2, safety block 3, knob 4, stirs cam 6, is provided with movable side's tongue 1 in the housing 5, and the inner segment side of square tongue 1 forms concave notches 1-1; Also be provided with rotary type knob 4 in the housing 5, knob 4 sets firmly stirs cam 6, stirs cam 6 and is near near the Baltimore groove 1-1 of square hyoplastron.

Safety block 3 comprises insurance a 3-1, connecting plate 3-2, rotating shaft 3-3, the end of rotating shaft 3-3 and the end of connecting plate 3-2 are fixedly linked, the other end of connecting plate 3-2 is fixedly connected on the downside of an insurance 3-1, the side of an insurance 3-1 is plane, relative top, another side is plane for one section, and hypomere is the arc shape of raised type; The concave notches 1-1 of flat side and the square hyoplastron of an insurance 3-1 is suitable and can insert wherein, and this flat side also has the holding tank 3-11 suitable with one side of torsion spring 2, another side and stir cam 6 and match and contact, and this side is called cam and touches face 3-12 mutually.An insurance 3-1, connecting plate 3-2 and rotating shaft 3-3 can be one-body molded, also can be with the independent moulding of rotating shaft 3-3, and being fixed then is installed on the connecting rod 3-2.Rotating shaft 3-3 rotary type is positioned within the housing 5, near the inner of square tongue 1, and the middle part of rotating shaft 3-3 overcoat torsion spring 2, one side 2-1 bending 90 degree of torsion spring 2 also withstand housing inside edge 5-1, and the another side 2-2 of torsion spring 2 inserts holding tank 3-11 and withstands an insurance 3-1.Figure 1 shows that the state that the concave notches 1-1 of insurance a 3-1 and square tongue is separated, at this moment, square tongue 1 can move, the ejection dead bolt.

Under released state, turning knob 4, stir cam 6 also rotates thereupon, in rotation process, stir cam 6 a roof pressures insurance 3-1 and make its rotation, stop when cam 6 turns to as shown in Figure 2 angle when stirring, at this moment, insure a 3-1 and stir cam 6 shapes in an angle, stir the cam that cam 6 peaks at an insurance 3-1 and touch the curved portions of face 3-12 mutually, and will insure 3-1 locking, and the flat side 3-1 that insures a 3-1 is just in the concave notches 1-1 of the side's of inserting tongue 1, under this state, square tongue 1 can not eject.

Under the state that square tongue 1 ejects, insure a 3-1 and stir cam 6 shapes in an angle, at this moment, stir cam 6 and peak at the curved portions that the cam that insures a 3-1 touches face 3-12 mutually, and will insure a 3-1 locking, and the inner face 1-2 of the external end head side of the peaking at tongue 1 of an insurance 3-1, the side's of making tongue 1 can not be regained.

After the locking of 6 pairs of insurances of cam 3-1 is stirred in releasing, the concave notches 1-1 or the inner end of insurance 3-1 disengaging side's tongue 1 under the active force of torsion spring 2, thus square tongue 1 has just been removed locking, can move.

More than preferred implementation of the present utility model is had been described in detail; corresponding those of ordinary skill in the art; the thought that provides according to the utility model; the part that all can change on concrete embodiment of the utility model and range of application, these changes also should be considered as protection domain of the present utility model.In sum, this description should not be construed as the restriction to the utility model protection domain.

Claims

1. the lock pin side of lock tongue locking mechanism, described lock pin lock comprises housing, square tongue, knob, is provided with movable side's tongue and rotary type knob in the housing, and the inner segment side of described side's tongue forms concave notches, described knob sets firmly one and stirs cam, stirs a side of the cam side of being located at tongue concave notches; It is characterized in that: establish a safety block in the described housing, it comprises insurance head, connecting plate, rotating shaft, rotating shaft and connecting plate one end are fixedly linked, the fixedly connected insurance head of the other end of connecting plate, first side of insurance head is plane, second side surface opposite top is plane for one section, and hypomere is the arc shape of raised type; First side of insurance head is suitable and can insert wherein with the concave notches of square tongue, described second side and stir cam and match and contact; Be positioned within the housing described rotating shaft rotary type, rotating shaft overcoat one torsion spring, one side the peaking in the housing of torsion spring, the another side of torsion spring withstands the insurance head.

2. the lock pin as claimed in claim 1 side of lock tongue locking mechanism is characterized in that: described insurance capitiform becomes a holding tank, inserts the another side of described torsion spring in the holding tank.

3. the lock pin as claimed in claim 1 or 2 side of lock tongue locking mechanism is characterized in that: described insurance head, connecting plate and rotating shaft are one-body molded.

4. the lock pin as claimed in claim 1 or 2 side of lock tongue locking mechanism is characterized in that: the independent moulding of described rotating shaft is fixedly installed on the connecting rod.