CN210289427U

CN210289427U - Automatic locking mechanism

Info

Publication number: CN210289427U
Application number: CN201920912563.6U
Authority: CN
Inventors: 吴谷英; 张助军; 刘晓峰; 柳学强
Original assignee: Ningbo Dingpo International Trade Co Ltd
Current assignee: Ningbo Dingpo International Trade Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-10
Anticipated expiration: 2029-06-18

Abstract

The utility model provides an automatic locking mechanism, includes lock, end lock and the actuating arm of connecting lock and end lock in the middle of middle lock, the end lock includes the casing, the one end of pull rod holds in the casing, be provided with the installation department on the pull rod, be provided with the location axle on the installation department, the epaxial cover in location is equipped with the torsional spring, the epaxial cover in location is equipped with the drag hook, the one end of drag hook is provided with the pothook. The utility model discloses automatic latch mechanism includes lock and end lock in the middle of the needs locking, can only lock the end lock, lock in the middle of not locking, lock and end lock simultaneously in the middle of also can, and when the unblock, middle lock and end lock unblock simultaneously, lock firmly, factor of safety is high.

Description

Automatic locking mechanism

Technical Field

The utility model relates to an automatic locking mechanism.

Background

Window and door locks are important components of everyday homes as part of a home security system. The function of the window lock catch is to lock the window, so that the window has better sealing performance and better safety performance. The door lock can lock and close a door, and a crescent window lock catch, a strip old-style automatic lock catch, a limiting lock catch and the like are arranged in the existing lock catch. The existing door lock and window lock can only be locked manually, do not have the function of locking automatically when the door is closed, and are not firm in locking and low in safety factor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a locking is firm, automatic latch mechanism that factor of safety is high.

An automatic locking mechanism comprises an intermediate lock, an end lock and a driving arm for connecting the intermediate lock and the end lock, wherein the driving arm comprises a rack and a pull rod which are connected with each other, the end lock comprises a shell, one end of the pull rod is accommodated in the shell, an installation part is arranged on the pull rod, a positioning shaft is arranged on the installation part, a torsional spring is sleeved on the positioning shaft, a drag hook is sleeved on the positioning shaft, one end of the drag hook is provided with a clamping hook, the other end of the drag hook is provided with a positioning hole matched with the positioning shaft, the drag hook is exposed out of the shell, a locking rod is arranged below the drag hook, a cavity is arranged in the locking rod, a first spring is accommodated in the cavity, the locking rod comprises a locking end and a first arc-shaped part arranged on the side wall of the locking rod, the top of the locking rod is provided with a groove matched with the, the trigger comprises a push rod, a second arc-shaped part and a contact surface, wherein the second arc-shaped part and the contact surface are arranged on the side wall of the trigger; the spring pressing device is characterized in that a second spring is arranged between the push rod and the shell, one end of the second spring is abutted to the push rod, the other end of the second spring is abutted to the shell, the second spring urges the push rod to enable the contact surface to extend out, and a rolling shaft is arranged between the first arc-shaped portion and the second arc-shaped portion.

Preferably, the shell is formed by matching a left shell and a right shell, a main gear and a lock hook are arranged in the middle lock, and the main gear part comprises a handle square hole and teeth arranged on the outer side of the handle square hole.

Preferably, one end of the rack located in the middle lock is provided with a first rack, the two racks are arranged oppositely up and down, the first racks are opposite up and down, and two pinions meshed with the first racks are arranged between the vertically opposite first racks.

Preferably, the first rack is disposed on both sides of the upper rack, wherein the first rack on the other side opposite to the pinion gear is engaged with the first teeth on the main gear.

Preferably, the latch hook comprises a latch tongue and a push arm, the ends of the latch tongue and the push arm are connected at the center, and the angle between the adjacent latch tongue and the push arm is 120 degrees.

Preferably, the push arm is provided with two positioning pins, the rack is vertically provided with a supporting arm matched with the push arm, and the supporting arm is provided with a groove in sliding fit with the positioning pins.

Compared with the prior art, the utility model discloses automatic latch mechanism includes middle lock and end lock, when needs locking, can only lock the end lock, lock in the middle of not locking, lock and end lock are locked simultaneously in the middle of also can, and when the unblock, middle lock and end lock unblock simultaneously, the locking is firm, and factor of safety is high.

Drawings

Fig. 1 is the internal structure schematic diagram of the automatic lock mechanism end lock of the present invention.

Fig. 2 is the exploded schematic view of the automatic lock mechanism end lock of the present invention.

Fig. 3 is the perspective view of the middle lock of the automatic lock mechanism of the present invention.

Fig. 4 is the first schematic view of the middle lock of the automatic lock mechanism of the present invention.

Fig. 5 is a second schematic view of the middle lock of the automatic lock mechanism of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, the automatic lock mechanism includes an intermediate lock 1, an end lock 2, and a driving arm 3 connecting the intermediate lock 1 and the end lock 2. The driving arm 3 comprises a rack 31 and a pull rod 32 connected to each other, the rack 31 cooperating with the intermediate lock 1 and the pull rod 32 cooperating with the end lock 2.

End lock 2 includes the casing, and the casing is formed by the cooperation of left casing 21 and right casing 22, and the one end of pull rod 32 holds in the casing, is provided with installation department 321 on the pull rod 32, is provided with the location axle on the installation department 321, and the epaxial cover in location is equipped with torsional spring 322 and drag hook 23, and the one end of drag hook 23 is provided with pothook 231, and the other end of drag hook 23 is provided with and fixes a position axle complex locating hole 232. The draw hook 23 is exposed outside the left shell 21 and the right shell 22, a locking rod 25 is arranged below the draw hook 23, a cavity is arranged in the locking rod 25, a first spring 24 is accommodated in the cavity 25, the locking rod 25 comprises a locking end 251 and a first arc-shaped part 252 arranged on the side wall of the locking rod 25, a groove 253 matched with the hook 231 is arranged at the top of the locking rod 25, a trigger 28 is arranged below the locking rod 25, and the trigger 28 comprises a push rod 281 and a second arc-shaped part 282 and a contact surface 283 which are arranged on the side wall of the trigger 28. A second spring 27 is disposed between the push rod 281 and the left housing 21, one end of the second spring 27 abuts against the push rod 281, and the other end of the second spring 27 abuts against the left housing 21, so that the second spring 27 urges the trigger 28 to protrude outward. When the trigger 28 is not subjected to external force, the second spring 27 urges the push rod 281 to extend the contact surface 283. A roller 26 is disposed between the first arc-shaped portion 252 and the second arc-shaped portion 282.

The intermediate lock 1 is provided with a main gear 11 and a locking hook 13, wherein the main gear comprises a square handle hole 111 and teeth 112 arranged outside the square handle hole 111.

One end of the rack 31 in the middle lock 1 is provided with a first rack 311, the two racks 31 are arranged oppositely up and down, the first rack 311 is arranged oppositely up and down, and two pinions 12 meshed with the first rack 311 are arranged between the first racks 311 which are opposite up and down. The first rack 311 is provided on both sides of the upper rack 31, wherein the first rack 311 on the other side opposite to the pinion gear 12 is engaged with the teeth 112 on the main gear 11. When the handle square hole 111 is rotated, the main gear 11 first drives the upper rack 31 to move through the teeth 112, and the upper rack 31 moves while driving the lower rack 31 to move through the pinion 12. A locking hook 13 is arranged in the intermediate lock 1, and when the rack 31 moves in the extending direction, the locking hook 13 can extend out of or retract into the intermediate lock 1.

The latch hook 13 includes a latch tongue 131 and a push arm 132, ends of the latch tongue 131 and the push arm 132 are connected at the center, an angle between the two adjacent latch tongues 131 and the push arm 132 is 120 °, the push arm 132 is provided with two positioning pins 1331, the rack 31 is vertically provided with a support arm 312 matched with the push arm 132, and the support arm 312 is provided with a groove in sliding fit with the positioning pin 1331. When the rack 31 reciprocates in the extending direction thereof, the latch 131 can be extended or retracted from the intermediate lock 1 while rotating around the positioning pin 1331.

The automatic locking mechanism may be mounted on a window or door, in this embodiment the automatic locking mechanism is mounted on a movable window.

When the window needs to be closed, the window is manually close to the window edge, when the contact surface 283 of the trigger 28 contacts the window edge, the contact surface 283 is forced to move towards the inside of the shell, when the trigger 28 retracts inwards, the roller 26 slides from the upper surface to the lower surface of the trigger 28, in the process that the roller 26 slides from the upper surface to the lower surface of the trigger 28, the roller 26 does not limit the position of the locking rod 25, the locking rod 25 extends out of the shell under the urging force of the first spring 24, the locking end 251 of the locking rod 25 is matched and locked with the window edge lock hole, automatic locking is realized, when the window is closed, the draw hook 23 exposed outside the shell rotates towards the inside of the shell after contacting with the window edge, when the window needs to be completely locked, when the master gear 11 is rotated clockwise by 90 degrees, the teeth 112 on the master gear 11 drive the two racks 31, the bolt 131 rotates towards the outside of the lock body 1 by taking the positioning pin 1331 as the center and is locked with the lock hole on the window edge, meanwhile, the two racks 31 can push the pull rod 32 while moving, the pull rod 32 can push the pull hook 23 to move towards the direction of the end lock 2, the pull hook 23 can rotate along the positioning shaft, the hook 231 can hook the groove 253 of the locking rod 25 and prepare for unlocking, and at the moment, the lock body 1 and the two end locks 2 are locked with the lock holes on the window edge, and locking is firm.

When the window needs to be opened, the driving part 11 is rotated anticlockwise, the teeth 112 on the outer side of the handle 111 drive the end lock 2 of the rack 31 to move towards the middle lock 1, the rack 31 drives the pull rod 32 to move towards the middle lock 1, and simultaneously the pull rod 32 pulls back the locking rod 25 through the draw hook 23, so that the locking rod 25 is separated from the lock hole on the window edge to unlock the end lock.

When the window needs to be opened, the main gear 11 is rotated counterclockwise, the teeth 112 outside the square hole 111 of the handle rotate to recover one of the racks 31, the rack rotates to drive the two pinions 12 to drive the other rack 31, the two racks 31 rotate the two locking hooks 13 to extend into the lock body, so as to unlock the intermediate lock, meanwhile, the rack 31 pulls the pull rod 32 while moving, the draw hook 23 on the pull rod 32 pulls the locking rod 25 back into the shell of the end lock 2, so as to separate the locking rod 25 from the lock hole on the window edge to unlock the end lock, at this time, the window is opened, the contact surface 283 of the trigger 28 is no longer stressed, the push rod 281 pushes the trigger 28 to eject the shell of the end lock 2 under the action of the second spring 27, the trigger pushes the roller 26 to clamp the locking rod 25 while ejecting, and at this time, the draw hook 23 is turned outwards under the action of the torsion spring 322, the hook 231 is disengaged from the recess 253 of the locking lever 25 in preparation for the next job.

The utility model discloses automatic latch mechanism includes lock 1 and end lock 2 in the middle of the needs are locked, when needs lock, can only lock end lock 2, lock 1 in the middle of not locking, also can middle lock 1 and end lock 2 locks simultaneously, when the unblock, middle lock 1 and end lock 2 unblocks simultaneously, and the locking is firm, and factor of safety is high.

Finally, it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an automatic locking mechanism, includes lock (1), end lock (2) and the actuating arm (3) of connecting lock (1) and end lock (2) in the middle of middle lock (1), actuating arm (3) include interconnect's rack (31) and pull rod (32), its characterized in that, end lock (2) include the casing, the one end of pull rod (32) is held in the casing, be provided with installation department (321) on pull rod (32), be provided with the location axle on installation department (321), the epaxial cover of location is equipped with torsional spring (322) and drag hook (23), the one end of drag hook (23) is provided with pothook (231), the other end of drag hook (23) is provided with locating hole (232) with location axle complex, drag hook (23) expose outside the casing, the below of drag hook (23) is provided with locking lever (25), be provided with the cavity in locking lever (25), a first spring (24) is accommodated in the cavity, the locking rod (25) comprises a locking end (251) and a first arc-shaped part (252) arranged on the side wall of the locking rod (25), a groove (253) matched with the clamping hook (231) is arranged at the top of the locking rod (25), a trigger (28) is arranged below the locking rod (25), and the trigger (28) comprises a push rod (281), a second arc-shaped part (282) arranged on the side wall of the trigger (28) and a contact surface (283); be provided with second spring (27) between push rod (281) and the casing, the one end butt push rod (281) of second spring (27), the other end butt casing of second spring (27), second spring (27) compel to push rod (281) and make contact surface (283) stretch out, are provided with roller (26) between first arc portion (252) and second arc portion (282).

2. The automatic locking mechanism according to claim 1, characterized in that the housing is formed by a left housing (21) and a right housing (22) in cooperation, a main gear (11) and a locking hook (13) are provided in the intermediate lock (1), the main gear (11) comprises a handle square hole (111) and teeth (112) provided outside the handle square hole (111).

3. The automatic locking mechanism according to claim 2, characterized in that one end of the rack (31) in the intermediate lock (1) is provided with a first rack (311), two racks (31) are arranged opposite to each other up and down and the first rack (311) is arranged opposite to each other up and down, and two pinions (12) engaged with the first rack (311) are arranged between the first racks (311) opposite up and down.

4. An automatic lock mechanism according to claim 3, characterized in that the first rack (311) is arranged on both sides of the upper rack (31), wherein the first rack (311) on the other side opposite the pinion (12) meshes with the teeth (112) on the main gear (11).

5. The automatic lock mechanism of claim 4, wherein the locking hook (13) comprises a locking tongue (131) and a pushing arm (132), the ends of the locking tongue (131) and the pushing arm (132) being centrally connected and the angle between adjacent two being 120 °.

6. The automatic lock mechanism of claim 5, wherein the push arm (132) is provided with two positioning pins (1331), the rack (31) is vertically provided with a support arm (312) matched with the push arm (132), and the support arm (312) is provided with a groove matched with the positioning pin (1331) in a sliding manner.