CN203613886U

CN203613886U - Hooking prevention mechanism for internal handle of safe-guard chain door lock

Info

Publication number: CN203613886U
Application number: CN201320832811.9U
Authority: CN
Inventors: 王荣福; 周忠
Original assignee: Shenzhen Probuck Technologies Co Ltd
Current assignee: Doma Kaibat Technology Co ltd
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-05-28
Anticipated expiration: 2023-12-16

Abstract

The utility model discloses a hooking prevention mechanism for an internal handle of a safe-guard chain door lock. The hooking prevention mechanism is connected with the internal handle installed an internal locking face assembly. The internal handle is provided with a through hole. A rotating shaft penetrating through the internal locking face assembly is arranged in the through hole. The internal handle can rotate around the rotating shaft. The hooking prevention mechanism for the internal handle of the safe-guard chain door lock comprises a button installed in the through hole in a sliding and sleeved mode, and a clutch block fixed to the inner end of the button. A reset spring is arranged between the button and the inner wall of the through hole. A driving part is arranged at the end, opposite to the connection end of the button, of the clutch block. The rotating shaft is provided with a driven part matched with the driving part. A clutch gap is reserved between the driving part and the driven part. The hooking prevention mechanism has the hooking prevention function, improves the safety of a safe-guard chain door, and is simple in structure, safe, reliable, high in adaptability and suitable for mass production. Moreover, the automatic rotating shaft resetting function is achieved, and resetting can be achieved without a lock body spring.

Description

A kind of inner handle anti-hooking mechanism of safe-guard door lock

Technical field

The utility model relates to safe-guard door lock field, particularly a kind of inner handle anti-hooking mechanism of safe-guard door lock.

Background technology

At the current development along with electronic lock industry, use for the convenience of the user, interior locking face in door lock industry generally directly presses down Internal handle can quickly unlocking, outer locking face just can be unblanked after need to verifying after driving clutch actuator, Internal handle has the rotating shaft that vertically penetrates interior locking face, rotating shaft is connected with the lock body in door, and when Internal handle is in the position of closing the door, the dead bolt on lock body stretches out to be locked in doorframe; When being rotated down after handle, rotating shaft drives dead bolt retraction lock body, and security door can be opened.

Because thief, robber may stretch into from window or opal hole with the instrument of iron wire or other hook-types, then hook draw or under push away Internal handle, also can realize and unblanking.Therefore this mode of unblanking brings users very large potential safety hazard, and theftproof is not strong, very dangerous.

Utility model content

Technical problem to be solved in the utility model is: a kind of inner handle anti-hooking mechanism of safe-guard door lock is provided, not only there is anti-hook function, and Internal handle when idle running, rotating shaft has auto-reset function, simple in structure, safe and reliable.

For solving the problems of the technologies described above, the utility model proposes a kind of inner handle anti-hooking mechanism of safe-guard door lock, be connected with the Internal handle being arranged on interior locking face assembly, described Internal handle is provided with through hole, in described through hole, be provided with the rotating shaft through described interior locking face assembly, described Internal handle can rotate around described rotating shaft, the inner handle anti-hooking mechanism of described safe-guard door lock comprises that slip cap is contained in knob in described through hole, is fixed on the clutch block of described knob the inner, is provided with back-moving spring between described knob and the inwall of through hole; The opposite end of described clutch block and knob link is provided with drive division, and described rotating shaft is provided with the follower coordinating with drive division, leaves clutch gap between described drive division and follower.

Further, described rotating shaft and through hole link are provided with reset sleeve, and described rotating shaft is fixedly mounted in described reset sleeve, and described follower is arranged in reset sleeve; Described reset sleeve is provided with this one end movable set of follower in described through hole, the other end of reset sleeve is provided with arc-like sheet, in described interior locking face assembly, be provided with the banking stop being connected with arc-like sheet, described banking stop is connected with the torsion spring being arranged in interior locking face assembly.

Further, described through-hole wall is provided with stage portion, and the outer peripheral surface of described knob radially offers the groove that holds described back-moving spring, and after described back-moving spring is sleeved in described groove, its one end is connected in stage portion.

Further, described clutch block is fixed by screws in the inner of described knob.

Further, described Internal handle is contained in interior locking face assembly by jump ring.

Further, described interior locking face assembly is provided with and makes the automatically reset limited cover of Internal handle.

Further, the inwall of described through hole is provided with anti-rotation boss, and the outer wall of described clutch block is provided with the cavity coordinating with anti-rotation boss.

Technique scheme at least has following beneficial effect: the utility model must be pressed knob and do not put, pressing down Internal handle could be from door drawback lock again, effectively prevent thief, robber may be with the instrument of iron wire or other hook-types from window or smash opal and stretch into from opal hole, then hook draw or under postpone handle, its rotation is pressed down opens the door, improve the safety of security door, but also there is rotating shaft auto-reset function, do not need by lock body spring reset, simple in structure, safe and reliable, simultaneous adaptation is strong, is suitable for producing in enormous quantities.

Accompanying drawing explanation

Fig. 1 is the sectional view of the structural representation of the inner handle anti-hooking mechanism of the utility model safe-guard door lock.

Fig. 2 is the internal construction schematic diagram of through hole in the inner handle anti-hooking mechanism of the utility model safe-guard door lock.

Fig. 3 is the structure explosive view of the inner handle anti-hooking mechanism of the utility model safe-guard door lock.

The specific embodiment

It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Below in conjunction with accompanying drawing, the utility model is described further.

In door lock industry, on interior locking face assembly 1, Internal handle 2 is installed, Internal handle 2 is provided with through hole 21, is provided with the rotating shaft 3 through described interior locking face assembly 1 in through hole 21, and Internal handle 2 can 3 rotate around the shaft.Normally directly pressing down Internal handle 2 from the inside of security door just can quickly unlocking, outer locking face just can be unblanked after need to verifying after driving clutch actuator, Internal handle 2 has the rotating shaft 3 that vertically penetrates interior locking face, rotating shaft 3 is connected with the lock body in door, when Internal handle 2 is in the position of closing the door, the dead bolt on lock body stretches out to be locked in doorframe; When being rotated down after Internal handle 2, rotating shaft 3 drives dead bolt retraction lock body, and security door can be opened.

Because thief, robber may stretch into from window or opal hole with the instrument of iron wire or other hook-types, then hook draw or under push away Internal handle 2, also can realize and unblanking.Therefore in order to improve the safety of security door, the present invention has designed a kind of inner handle anti-hooking mechanism for safe-guard door lock, can effectively prevent the generation of above-mentioned situation.

Embodiment mono-

As shown in Figure 1 to Figure 3, the inner handle anti-hooking mechanism knob 4 of the safe-guard door lock of the utility model embodiment, clutch block 5, back-moving spring 6, wherein, using Fig. 1 as direction reference data, knob 4 movable sets are in the through hole 21 of Internal handle 2, the centre of through hole 21 is provided with four anti-rotation boss 212, the outer wall of clutch block 5 is provided with the cavity 51 coordinating with anti-rotation boss 212, like this when anti-rotation boss 212 is embedded in the time that cavity 51 is interior, anti-rotation boss 212 can limit knob 4 and clutch block 5 rotates, and knob 4 can only be moved up and down; Clutch block 5 is fixed on the lower end of knob 4, preferably, clutch block 5 is fixed on the lower end of knob 4 by screw 10, and the lower end of clutch block 5 is provided with drive division 7, rotating shaft 3 upper ends are provided with the follower 8 coordinating with drive division 7, between drive division 7 and follower 8, leave predetermined clutch gap; Back-moving spring 6 is arranged between knob 4 and through hole 21 inwalls, particularly, through hole 21 inwalls are provided with stage portion 211, and the outer peripheral surface of knob 4 radially offers the groove 41 that holds back-moving spring 6, and back-moving spring 6 is sleeved on interior rear its lower end of described groove 41 and is connected in stage portion 211.

In the time that knob 4 is not pressed, because back-moving spring 6 acts on, knob 4 and clutch block 5, in the reset mode of upspringing, now press down and rotate Internal handle 2, owing to leaving predetermined clutch gap between drive division 7 and follower 8, drive division 7 on clutch block 5 does not touch the follower 8 in rotating shaft 3, and Internal handle 2 drives knob 4 and clutch block 5 to rotate, rotating shaft 3 transfixions, so now can not realize and unblanking, Internal handle 2 dallies, and after letting go, the limited cover 13 on interior locking face assembly 1 can make Internal handle 2 automatically reset.

In the time pressing knob 4, knob 4 and clutch block 5 sink simultaneously, eliminate between drive division 7 and follower 8 and leave predetermined clutch gap, follower 8 phase interlocks in the drive division 7 of clutch block 5 lower ends and rotating shaft 3, now pin knob 4 and do not put, press down simultaneously and rotate Internal handle 2, Internal handle 2 drives knob 4 and clutch block 5, clutch block 5 drives rotating shaft 3 to rotate together again, thereby drive lock body mechanism is rotated in rotating shaft 3, realization is unblanked.

Embodiment bis-

The difference of the present embodiment and embodiment mono-is, the upper end of rotating shaft 3 is provided with reset sleeve 9, rotating shaft 3 is fixedly mounted in reset sleeve 9, and the above-mentioned follower 8 that is arranged on rotating shaft 3 upper ends is arranged on to the top of reset sleeve 9, the movable upper end of reset sleeve 9 is sleeved in through hole 21 simultaneously, the lower end of reset sleeve 9 is provided with arc-like sheet 91, is provided with the banking stop 11 being connected with arc-like sheet 91 in interior locking face assembly 1, and banking stop 11 is connected with the torsion spring 12 being arranged in interior locking face assembly 1.Particularly, the upper end of reset sleeve 9 is straight body cylinders, be installed in Internal handle 2 through holes 21, through hole 21 makes this two part form self-movement with cylindrical fit, the arc-like sheet 91 of reset sleeve 9 lower ends coordinates and is installed in the banking stop 11 that interior locking face assembly 1 is provided with, when press down or on while carrying Internal handle 2, banking stop 11 in interior locking face assembly 1 and torsion spring 12 can drive reset sleeve 9 to reset, thereby reset sleeve 9 drives rotating shaft 3 to automatically reset, like this in the time of rear handle idle running, rotating shaft 3 has auto-reset function, and does not need by lock body spring reset.

As another kind of embodiment, Internal handle 2 is arranged on interior locking face assembly 1 by jump ring 100, can effectively prevent that Internal handle 2 and interior locking face assembly 1 from departing from.

In summary, the utility model must be pressed knob 4 and do not put, then press down Internal handle 2 could be from door drawback lock, effectively prevent thief, robber may be with the instrument of iron wire or other hook-types from window or smash opal and stretch into from opal hole, then hook draw or under postpone handle, its rotation is pressed down and opens the door, improved the safety of security door, but also there are rotating shaft 3 auto-reset functions, do not need by lock body spring reset, simple in structure, safe and reliable, simultaneous adaptation is strong, is suitable for producing in enormous quantities.

The above is the specific embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some modifications, these are revised and are also considered as protection domain of the present utility model.

Claims

1. the inner handle anti-hooking mechanism of a safe-guard door lock, be connected with the Internal handle (2) being arranged on interior locking face assembly (1), described Internal handle (2) is provided with through hole (21), in described through hole (21), be provided with the rotating shaft (3) through described interior locking face assembly (1), described Internal handle (2) can rotate around described rotating shaft (3), it is characterized in that, the inner handle anti-hooking mechanism of described safe-guard door lock comprises that slip cap is contained in the knob (4) in described through hole (21), be fixed on the inner clutch block (5) of described knob (4), between the inwall of described knob (4) and through hole (21), be provided with back-moving spring (6), described clutch block (5) is provided with drive division (7) with the opposite end of knob (4) link, and described rotating shaft (3) is provided with the follower (8) coordinating with drive division (7), between described drive division (7) and follower (8), leaves clutch gap.

2. the inner handle anti-hooking mechanism of safe-guard door lock as claimed in claim 1, it is characterized in that, described rotating shaft (3) is provided with reset sleeve (9) with through hole (21) link, described rotating shaft (3) is fixedly mounted in described reset sleeve (9), and described follower (8) is arranged in reset sleeve (9); Described reset sleeve (9) is provided with this one end movable set of follower (8) in described through hole (21), the other end of reset sleeve (9) is provided with arc-like sheet (91), in described interior locking face assembly (1), be provided with the banking stop (11) being connected with arc-like sheet (91), described banking stop (11) is connected with the torsion spring (12) being arranged in interior locking face assembly (1).

3. the inner handle anti-hooking mechanism of safe-guard door lock as claimed in claim 1, it is characterized in that, described through hole (21) inwall is provided with stage portion (211), the outer peripheral surface of described knob (4) radially offers the groove (41) that holds described back-moving spring (6), and after described back-moving spring (6) is sleeved in described groove (41), its one end is connected in stage portion (211).

4. the inner handle anti-hooking mechanism of safe-guard door lock as claimed in claim 1, is characterized in that, described clutch block (5) is fixed on the inner of described knob (4) by screw (10).

5. the inner handle anti-hooking mechanism of safe-guard door lock as claimed in claim 1, is characterized in that, described Internal handle (2) is arranged on interior locking face assembly (1) by jump ring (100).

6. the inner handle anti-hooking mechanism of safe-guard door lock as claimed in claim 1, is characterized in that, described interior locking face assembly (1) is provided with and makes the automatically reset limited cover of Internal handle (2) (13).

7. the inner handle anti-hooking mechanism of safe-guard door lock as claimed in claim 1, is characterized in that, the inwall of described through hole (21) is provided with anti-rotation boss (212), and the outer wall of described clutch block (5) is provided with the cavity (51) coordinating with anti-rotation boss (212).