CN210396448U

CN210396448U - Automatic locking mechanism

Info

Publication number: CN210396448U
Application number: CN201920912570.6U
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: 2020-04-24
Anticipated expiration: 2029-06-18

Abstract

The utility model provides an automatic locking mechanism, be provided with master gear and latch hook in the middle lock, the master gear includes the handle square hole and sets up the tooth in the handle square hole outside, the end lock includes the casing, hold the linking arm in the casing, the bolt, the drag hook and with linking arm fix with screw's tray, be provided with the locating pin on the linking arm and establish the torsional spring on the locating pin, the linking arm is withheld to the end of actuating lever, the lateral part of bolt is provided with the concave part, the bolt is provided with the guide arm with the tray, the cover is equipped with compression spring on the guide arm, the tip of the one end butt bolt of spring, the tip of the one end butt tray of spring, the spring compels to push. 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.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides an automatic locking mechanism, includes lock, end lock and connects the actuating arm of lock and end lock in the middle of being provided with master gear and latch hook in the lock, the master gear includes the handle square hole and sets up the tooth in the handle square hole outside, and the end lock includes the casing, holds the linking arm in the casing, bolt, drag hook and with linking arm fixed tray, be provided with first locating pin and cover on the linking arm and establish the torsional spring on first locating pin, the linking arm is withheld to the end of actuating lever, the lateral part of bolt is provided with the concave part, be provided with the guide arm between bolt and the tray, the cover is equipped with compression spring on the guide arm, the tip of the one end butt bolt of spring, the tip of one end butt tray of spring, the spring compels to push away the bolt and removes towards the end.

Preferably, the draw hook comprises a positioning hole, and an arc triggering surface and a hook part which are arranged on two sides of the positioning hole.

Preferably, the drag hook passes through the locating hole and installs on the linking arm with the cooperation of first locating pin, a stabilizer blade butt linking arm of torsional spring, the concave part cooperation restriction bolt removal of forced hook portion and bolt of the bottom of another stabilizer blade butt arc trigger face.

Preferably, the driving arm comprises a rack and a driving rod which are connected with each other, the rack is matched with the middle lock, and the driving rod is matched with the end lock.

Preferably, one end of the driving rod, which is 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 a pinion meshed with the first racks is 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 is engaged with the 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 second 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 second 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 a schematic perspective view of the automatic locking mechanism 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 first schematic diagram of the middle lock of the automatic lock mechanism of the present invention.

Fig. 4 is the second schematic diagram of the middle lock of the automatic lock mechanism of the present invention.

Fig. 5 is a schematic perspective view of the automatic lock mechanism end lock of the present invention.

Fig. 6 is a schematic perspective 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 6, 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 driving rod 32 which are connected with each other, the rack 31 is matched with the middle lock 1, and the driving rod 32 is matched with the end lock 2.

End lock 2 includes casing 21, hold linking arm 22 in casing 21, bolt 23, drag hook 24 and with linking arm 22 fixed by screw's tray 25, be provided with first locating pin 222 on the linking arm 22 and establish the torsional spring 223 on first locating pin 222 with the cover, the terminal withhold linking arm 22 of actuating lever 32, the lateral part of bolt 23 is provided with concave part 231, be provided with guide arm 232 between bolt 23 and the tray 25, the cover is equipped with compression spring 26 on the guide arm 232, the tip of the one end butt bolt 23 of spring 26, the tip of the one end butt tray 25 of spring 26, spring 26 compels to push away bolt 23 and removes towards end lock 2 direction.

The draw hook 24 comprises a positioning hole 243, and an arc-shaped triggering surface 241 and a hook part 242 which are arranged on two sides of the positioning hole 243, the draw hook 24 is installed on the connecting arm 22 in a matched mode with the first positioning pin 222 through the positioning hole 243, one leg of the torsion spring 223 abuts against the connecting arm 22, and the other leg abuts against the bottom of the arc-shaped triggering surface 241 so that the hook part 242 is forced to be matched with the concave part 231 of the bolt 23 to limit the movement of the bolt 23.

The intermediate lock 1 is provided with a main gear 11, and the main gear part comprises a handle square hole 111 and teeth 112 arranged outside the handle square 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 second 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 second positioning pins 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 about the second 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 closed to the window edge, when the arc-shaped triggering surface 241 of the draw hook 24 contacts the window edge, the arc-shaped triggering surface 241 is stressed and rotates with the first positioning pin 222 as the shaft of the shell 21, the hook part 242 also rotates and is separated from the concave part 231, and the bolt 23 is ejected outwards under the urging force of the spring 26 and is locked with the end lock hole on the window edge. When the main gear 11 is rotated clockwise, the teeth 112 on the main gear 11 drive the two racks 31, the bolt 131 rotates towards the outside of the lock body 1 around the second positioning pin 1331 and locks with the lock hole on the window rim, at the same time, the two racks 31 push the driving rod 32 while moving, the driving rod 32 pushes the connecting arm 22, the draw hook 24 on the connecting arm 22 also moves towards the end lock 2, the draw hook 24 rotates along the first positioning pin 222 under the action of the torsion spring 223, the hook 242 hooks the concave 231 of the bolt 23, preparation is made for unlocking, and at this time, the lock body 1 and the two end locks 2 both lock with the lock hole on the window rim, and locking is firm.

When the window needs to be opened, the main gear 11 is rotated anticlockwise, one of the racks 31 can be recovered by rotating the teeth 112 outside the square hole 111 of the handle, the rack can drive the two pinions 12 to drive the other rack 31 when rotating, the two racks 31 can rotate the two lock hooks 13 to extend into the lock body, so as to realize unlocking of the middle lock, meanwhile, the rack 31 can pull the driving rod 32 while moving, the driving rod 32 can pull the connecting arm 22, the draw hook 24 on the connecting arm 22 can pull the bolt 23 back into the shell 21 on the end lock 2, and therefore the bolt 23 is separated from the lock hole on the window edge to realize unlocking of the end lock.

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. An automatic locking mechanism comprises an intermediate lock (1), an end lock (2) and a driving arm (3) connecting the intermediate lock (1) and the end lock (2), and is characterized in that a main gear (11) and a locking hook (13) are arranged in the intermediate lock (1), the main gear (11) comprises a handle square hole (111) and teeth (112) arranged outside the handle square hole (111), the end lock (2) comprises a shell (21), a connecting arm (22) accommodated in the shell (21), a bolt (23), a draw hook (24) and a tray (25) fixed with the connecting arm (22), a first positioning pin (222) and a torsion spring (223) sleeved on the first positioning pin (222) are arranged on the connecting arm (22), the connecting arm (22) is buckled at the tail end of a driving rod (32), a concave portion (231) is arranged on the side portion of the bolt (23), and a guide rod (232) is arranged between the bolt (23) and the tray (25), the cover is equipped with compression spring (26) on guide arm (232), the tip of one end butt bolt (23) of spring (26), the tip of one end butt tray (25) of spring (26), spring (26) compel to push away bolt (23) and remove towards end lock (2) direction.

2. The automatic locking mechanism according to claim 1, wherein the draw hook (24) comprises a positioning hole (243), and an arc-shaped trigger surface (241) and a hook portion (242) provided on both sides of the positioning hole (243).

3. The automatic locking mechanism of claim 2, wherein the draw hook (24) is mounted on the connecting arm (22) through the positioning hole (243) and the first positioning pin (222), one leg of the torsion spring (223) abuts against the connecting arm (22), and the other leg abuts against the bottom of the arc-shaped triggering surface (241) to urge the hook portion (242) to cooperate with the recess (231) of the bolt (23) to limit the movement of the bolt (23).

4. Automatic lock mechanism according to claim 1, characterized in that the driving arm (3) comprises a rack (31) and a driving rod (32) connected to each other, the rack (31) cooperating with the intermediate lock (1) and the driving rod (32) cooperating with the end lock (2).

5. An automatic lock mechanism according to claim 4, characterized in that the end of the driving rod (32) 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 a pinion (12) meshed with the first rack (311) is arranged between the first racks (311) opposite up and down.

6. An automatic lock mechanism according to claim 5, characterized in that the upper rack (31) is provided with a first rack (311) on both sides, wherein the first rack (311) on the other side opposite the pinion (12) meshes with the teeth (112) on the main gear (11).

7. The automatic locking mechanism according to claim 1, characterized in that said 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 °.

8. The automatic lock mechanism of claim 7, wherein the push arm (132) is provided with two second 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 second positioning pin (1331) in a sliding way.