CN217581687U

CN217581687U - Lock for double-leaf door

Info

Publication number: CN217581687U
Application number: CN202221430343.8U
Authority: CN
Inventors: 黄辰杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-10-14
Anticipated expiration: 2032-06-09

Abstract

The utility model provides a double-leaf door lock, which comprises a left outer handle arranged at the outer side of a left door body and a right outer handle arranged at the outer side of a right door body, wherein a lock core is arranged in the right outer handle, the inner sides of the right door body and the left door body are respectively provided with a right shell and a right shell, a door bolt is arranged below the right shell and the right shell, a tooth socket and a lock notch are arranged on the door bolt, and a door bolt seat is arranged on the left door body; a lock rod and a transmission assembly are arranged in the right shell, the lock rod transmission assembly is connected with the lock cylinder, a right opening is formed in the bottom of the right shell, and a right inner handle connected with the transmission assembly is further arranged on the right shell; a gear transmission group engaged with the tooth groove on the door bolt is arranged in the left shell. Compared with the prior art, this two-leaf door lock adopts the locking lever to stretch into the keeper and locks, and the flexible of the locking lever is controlled to lock core or right inner handle in the accessible right outer handle, and the steerable gear drive group of left outer handle and left inner handle rotates in order to drive the keeper and remove, and the process of unblanking and locking is simple and convenient, and the security is high.

Description

Lock for double-leaf door

Technical Field

The utility model relates to a lock field, especially a two-leaf door lock.

Background

The door lock is a lock equipped on the main door of the whole building, which is communicated with the outside, so as to protect the personal and property safety. The prior double-leaf door adopts a unilateral door lock to lock, and has low structural strength and easy damage when in use.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a two-leaf door lock adopts the keeper mode to lock, and the convenience of unblanking to the security is high.

The utility model adopts the technical proposal that:

a double-leaf door lock comprises a left outer handle arranged on the outer side of a left door body and a right outer handle arranged on the outer side of a right door body, wherein a lock cylinder is arranged in the right outer handle; a lock rod inserted into the inner lock opening of the bolt to limit the sliding of the bolt and a transmission assembly used for driving the lock rod to lift are arranged in the right shell, the lock rod transmission assembly is connected with the lock cylinder, a right opening used for the lock rod to extend out is arranged at the bottom of the right shell, and a right inner handle connected with the transmission assembly and used for inner unlocking is further arranged on the right shell; the left shell is internally provided with a gear transmission group which is meshed with a tooth groove on the bolt and is used for driving the bolt to move, the left shell is also provided with a left inner handle which is used for driving the gear transmission group to rotate, and the left inner handle and the left outer handle are connected with the gear transmission group through a left square shaft.

Preferably, one end of the lock rod is hinged with a connecting rod, and the connecting rod is hinged in the right shell; the transmission assembly comprises a first driving block for pushing the connecting rod to lift up to enable the lock rod to ascend, the first driving block is connected with the right inner handle through a right square shaft, a coaxial second driving block is stacked on the first driving block, and the second driving block is connected with the lock cylinder; a second reset spring connected with the second driving block is arranged in the right shell.

More preferably, the first driving block is provided with a first lock seat, the front surface of the first lock seat is provided with a groove, and the back surface of the first lock seat is provided with a shaft hole matched with a right shaft on the right inner handle; the second driving block is provided with a second lock seat, the back of the second lock seat is provided with a convex shaft matched with the groove, and the back of the second lock seat is provided with a hole site matched with the lock shaft of the lock core.

More preferably, the lock rod is provided with a limiting groove, and a limiting pin extending into the limiting groove is arranged in the right shell.

More preferably, a first return spring is further arranged between the lock rod and the connecting rod, one end of the first return spring is clamped on the limiting groove, and the other end of the first return spring is connected with the connecting rod.

More preferably, the rear end of the locking bar is provided with a roller.

Preferably, a bottom plate and a sealing plate are arranged in the right shell, the lock rod and the connecting rod are hinged to the bottom plate, the second lock seat penetrates through the sealing plate to be matched with a lock shaft of the lock cylinder, and the first lock seat penetrates through the bottom plate to be matched with a right shaft on the right inner handle.

Preferably, the gear transmission assembly comprises a driving gear connected with the left shaft and a driven gear meshed with the driving gear, the driven gear penetrates through the right shell and is meshed with a tooth groove on the door bolt, and a right opening for the driven gear to penetrate through is formed in the left shell.

Preferably, brackets for supporting the door bolts are arranged on the right door body and the left door body.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a two-leaf door lock adopts the locking lever to lock with the removal of restriction keeper in stretching into the keeper, controls the flexible of locking lever in the accessible right side of the door outside handle lock core, and is flexible at the outer handle control locking lever in the accessible right side of door inside, and the steerable gear drive group of left outer handle and left inner handle rotates the removal in order to drive the keeper, and the whole process of unblanking and locking is simple and convenient to the security is high.

Drawings

Fig. 1 is a first schematic view of a double-leaf door lock provided by the present invention installed on a door body;

fig. 2 is a schematic view ii illustrating that the door lock of the double-leaf door provided by the present invention is installed on the door body;

fig. 3 is a schematic view of a lock for a double-leaf door according to the present invention;

fig. 4 is an exploded view of the door lock of the present invention;

fig. 5 is a schematic view of the lock rod of the door lock for a double-leaf door according to the present invention extending out;

fig. 6 is a schematic view illustrating the retraction of the lock bar in the door lock for the double-leaf door according to the present invention;

fig. 7 is an exploded view of the transmission assembly in the right housing of the double-leaf door lock of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 to 7 illustrate a preferred embodiment of a lock for a double-leaf door according to the present invention. As shown in fig. 1 to 7, the double-leaf door lock comprises a right outer handle 10 mounted on the outer side of a right door body 100 and a left outer handle 20 mounted on the outer side of a left door body 200, a lock cylinder 11 is arranged in the right outer handle 10, a right shell 50 and a left shell 60 are respectively arranged on the inner sides of the right door body 100 and the left door body 200, a bolt 70 is arranged below the right shell 50 and the left shell 60, a tooth socket 71 and a lock opening 72 are arranged on the bolt 70, a bolt seat 300 is arranged on the left door body 200, a lock rod 51 inserted into the lock opening in the bolt to limit the sliding of the bolt and a transmission assembly 52 for driving the lock rod to ascend and descend are arranged in the right shell 50, the lock rod transmission assembly 52 is connected with the lock cylinder 11, a right opening 501 for extending the lock rod is arranged on the bottom of the right shell 50, and a right inner handle 30 connected with the transmission assembly for internal unlocking is further arranged on the right shell 50; a gear transmission group 61 which is engaged with a tooth groove on the bolt and is used for driving the bolt to move is arranged in the left shell 60, a left inner handle 40 which is used for driving the gear transmission group to rotate is also arranged on the left shell 60, the left inner handle 40 and the left outer handle 20 are connected with the gear transmission group 61 through a left square shaft 401, therefore, when the door is locked, the other end of the bolt is inserted into a bolt seat 300 of the left door body 200, and the lock rod 51 extends into a lock notch 72 at one end of the bolt 70 to limit the movement and rotation of the bolt 70; when the door is unlocked from the outside of the door, a key is inserted into the lock cylinder 11 of the right outer handle 10 to drive the lock cylinder 11 to rotate, the lock cylinder drives the transmission assembly 52, the transmission assembly 52 drives the lock rod 51 to retract from the lock opening 72 of the door bolt 70, the left outer handle 20 is rotated, the gear transmission set 61 drives the door bolt 70 to move, one end of the door bolt 70 is separated from the lock rod 51, and then two door bodies can be opened; when the door is unlocked from the inner side, the right inner handle 30 is rotated to drive the transmission assembly 52, so that the lock rod 51 retracts from the lock opening 72 of the door bolt 70, the left inner handle 40 is rotated to drive the door bolt 70 to move through the gear transmission set 61, one end of the door bolt 70 is separated from the lock rod 51, and then the two door bodies can be opened. As a preferred embodiment, the right door body 100 and the left door body 200 are provided with the latch holder 300 on the inner side, and when locking, one end of the latch 70 is inserted into the latch holder 300 of the left door body 200, and the other end of the latch 70 is inserted into the latch holder 300 of the right door body 100, thereby providing higher safety.

One end of the lock rod 51 is hinged with a connecting rod 53, and the connecting rod 53 is hinged in the right shell 50; the transmission assembly 52 comprises a first driving block 521 for pushing the connecting rod 53 to lift up so as to enable the lock rod to rise, the first driving block 521 is connected with the right inner handle 30 through a right square shaft 31, a second driving block 522 for pushing the connecting rod 53 is coaxially laminated on the first driving block 521, and the second driving block 522 is connected with the lock cylinder 11; a second return spring 55 connected with the second driving block 522 is arranged in the right shell 50, so that the first driving block 521 pushes the connecting rod 53 to be lifted upwards and then returns to the original position under the action of the second return spring 55; and when the second driving block 522 pushes the connecting rod 53 to lift up, the second driving block 522 can be restored to the original position under the action of the coil spring inside the lock cylinder.

The first driving block 521 is provided with a first lock seat 5211, the front surface of the first lock seat is provided with a convex shaft 52111, and the back surface of the first lock seat is provided with a shaft hole 52112 matched with the right square shaft 31 on the right inner handle; the second driving block 522 is provided with a second lock seat 5221, the back of the second lock seat is provided with a groove 52211 matched with the protruding shaft, and the back of the second lock seat is provided with a hole 52212 matched with the lock shaft of the lock core, so that the first driving block 521 and the second driving block 522 can respectively push the connecting rod 53 without being influenced mutually.

The lock rod 51 is provided with a limiting groove 511, and the right housing 50 is provided with a limiting pin 502 extending into the limiting groove, so that the extending length and the locking length of the lock rod 51 are preset, and the function of guiding the moving direction of the lock rod 51 is achieved. A first return spring 54 is further arranged between the lock rod 51 and the connecting rod 53, one end of the first return spring 54 is clamped on the limiting groove 511, the other end of the first return spring 54 is connected with the connecting rod, and after the lock rod 51 is reset under the action of gravity, the first return spring 54 can drive the connecting rod 53 to reset. The lock lever 51 is provided at a rear end thereof with a roller 512.

A bottom plate 503 and a sealing plate 504 are arranged in the right shell 50, the lock rod 51 and the connecting rod 53 are hinged on the bottom plate 503, the second lock seat 5221 penetrates through the sealing plate 504 to be matched with a lock shaft of the lock core 11, and the first lock seat 5211 penetrates through the bottom plate 503 to be matched with the right shaft 31 on the right inner handle 30, so that the normal lifting of the lock rod 51 in the right shell 50 is ensured, and the random disassembly is prevented.

The gear transmission assembly 61 comprises a driving gear 611 connected with the left shaft and a driven gear 612 engaged with the driving gear, the driven gear 612 penetrates through the right housing to be engaged with the tooth groove 71 on the bolt 70, and the right housing is provided with a right opening 601 for the driven gear to penetrate through, so that when the left outer handle 20 or the left inner handle 40 rotates, the driving gear 611 is driven by the left shaft 401 to rotate, the driving gear 611 drives the driven gear 612, and the driven gear 612 drives the bolt 70 to move.

The right door body 100 and the right door body 200 are both provided with brackets 80 for supporting the door bolts, so that the door bolts 70 are prevented from falling off, and the stable and safe movement of the door bolts 70 is ensured.

The locking process of the double-leaf door comprises the following steps: the other end of the bolt 70 is inserted into the bolt seat 300 on the left door body 200, the left outer handle 20 or the left inner handle 40 is rotated to drive the gear transmission set 61, so that one end of the bolt 70 moves from the left door body 200 to the lower part of the right shell 50 of the right door body 100, the lock cylinder 11 or the right inner handle 30 is rotated, the lock rod 51 retracts, the bolt continues to move until the tail end of the lock rod 51 is inserted into the lock opening 72 of the bolt 70, and meanwhile, one end of the bolt 70 is inserted into the bolt seat 300 of the right door body 100, and locking is completed; the unlocking process of the double-leaf door comprises the following steps: 1) Unlocking the outside of the door: a key is inserted into the lock cylinder 11 of the right outer handle 10 to drive the lock cylinder 11 to rotate, the lock cylinder drives the second driving block 522 in the transmission assembly 52 to rotate, the second driving block 522 pushes the connecting rod 53 to lift up so that the lock rod 51 rises, the lock rod 51 retracts from the lock opening 72 of the door bolt 70, the left outer handle 20 is rotated, the gear transmission group 61 drives the door bolt 70 to move, one end of the door bolt 70 is separated from the door bolt seat 300 on the right door body 100, and then the two door bodies can be opened; when the door is unlocked at the inner side, the right inner handle 30 is rotated to drive the first driving block 521 in the transmission assembly 52, the first driving block 521 pushes the connecting rod 53 to lift up to enable the lock rod 51 to ascend, so that the lock rod 51 retracts from the lock opening 72 of the door bolt 70, the left inner handle 40 is rotated to drive the door bolt 70 to move through the gear transmission group 61, one end of the door bolt 70 is separated from the door bolt seat 300 on the right door body, and then the two door bodies can be opened.

To sum up, the technical scheme of the utility model can be fully effectual realize above-mentioned utility model purpose, just the utility model discloses a structure and functional principle all obtain abundant verification in the embodiment, can reach anticipated efficiency and purpose, do not deviating from the utility model discloses a under principle and the essential prerequisite, can make multiple change or modification to the embodiment of utility model. Therefore, the present invention includes all the alternative contents within the scope mentioned in the claims, and all the equivalent changes made within the claims of the present invention are included in the claims of the present application.

Claims

1. A double-leaf door lock comprises a left outer handle arranged on the outer side of a left door body and a right outer handle arranged on the outer side of a right door body, wherein a lock cylinder is arranged in the right outer handle; a lock rod inserted into the inner lock opening of the bolt to limit the sliding of the bolt and a transmission assembly used for driving the lock rod to lift are arranged in the right shell, the lock rod transmission assembly is connected with the lock cylinder, a right opening used for the lock rod to extend out is arranged at the bottom of the right shell, and a right inner handle connected with the transmission assembly and used for inner unlocking is further arranged on the right shell; the left shell is internally provided with a gear transmission group which is engaged with a tooth groove on the bolt and used for driving the bolt to move, the left shell is also provided with a left inner handle used for driving the gear transmission group to rotate, and the left inner handle and the left outer handle are connected with the gear transmission group through a left square shaft.

2. The lock for a double door according to claim 1, wherein: one end of the lock rod is hinged with a connecting rod, and the connecting rod is hinged in the right shell; the transmission assembly comprises a first driving block for pushing the connecting rod to lift up to enable the locking rod to rise, the first driving block is connected with the right inner handle through a right square shaft, a coaxial second driving block is stacked on the first driving block, and the second driving block is connected with the lock cylinder; a second reset spring connected with the second driving block is arranged in the right shell.

3. The lock for a double door according to claim 2, wherein: the first driving block is provided with a first lock seat, the front surface of the first lock seat is provided with a groove, and the back surface of the first lock seat is provided with a shaft hole matched with a right shaft on the right inner handle; the second driving block is provided with a second lock seat, the back of the second lock seat is provided with a convex shaft matched with the groove, and the back of the second lock seat is provided with a hole site matched with the lock shaft of the lock core.

4. The lock for a double door according to claim 1, wherein: the lock rod is provided with a limiting groove, and a limiting pin extending into the limiting groove is arranged in the right shell.

5. The lock for a double door according to claim 2, wherein: still be equipped with first reset spring between locking lever and the connecting rod, first reset spring's one end card is on the spacing groove, and first reset spring's the other end is connected with the connecting rod.

6. The lock for a double door according to claim 2, wherein: the tail end of the lock rod is provided with a roller.

7. The lock for a double door according to claim 3, wherein: a bottom plate and a sealing plate are arranged in the right shell, a lock rod and a connecting rod are hinged to the bottom plate, a second lock seat penetrates through the sealing plate to be matched with a lock shaft of the lock cylinder, and a first lock seat penetrates through the bottom plate to be matched with a right shaft on the right inner handle.

8. The lock for a double door according to claim 1, wherein: the gear transmission assembly comprises a driving gear connected with the left shaft and a driven gear meshed with the driving gear, the driven gear penetrates through the right shell to be meshed with a tooth groove in the door bolt, and a right opening for the driven gear to penetrate through is formed in the left shell.

9. The lock for a double door according to claim 1, wherein: and brackets for supporting the door bolts are arranged on the right door body and the left door body.