Automatically lockable door lock

Abstract

The present invention proposes an automatically lockable door lock, comprising an upper lock shell and a lower lock shell, wherein the upper lock shell and the lower lock shell cover each other up and down to form a lock core cavity, and a linkage lock core assembly is arranged in the lock core cavity; the linkage lock core assembly comprises a main lock tongue assembly and an inclined tongue assembly, the main lock tongue assembly is connected to a linkage locking mechanism, and the inclined tongue assembly is connected to a linkage unlocking mechanism, and the linkage locking mechanism and the linkage unlocking mechanism cooperate with each other to realize an automatic locking action; the present invention also comprises a key driving assembly and at least two handle driving assemblies, wherein the key driving assembly and the at least two handle driving assemblies are all connected to the main lock tongue assembly and the inclined tongue assembly to drive the main lock tongue assembly and the inclined tongue assembly to move, and the present application realizes the function of automatically locking when the door is closed, and the card plate adopts a sliding groove to be clamped with a fixed column, and the resistance is small when in use, and secondly, two handle driving assemblies are arranged, and when in use, which handle driving assembly is selected to install the handle according to actual conditions, which is practical and flexible.

Description

Technical Field

[0001] The invention belongs to the field of door lock manufacturing, in particular to an automatically locked door lock. Background Art

[0002] Door locks generally include two types of lock tongues. One is the main lock tongue, which is composed of multiple lock tongues and is usually locked after going out to prevent theft. The other is the secondary lock tongue, which is usually linked to the handle and can be opened by the handle for daily door closing.

[0003] Existing door locks have the following defects: after closing the door, it is necessary to use a key to activate the main lock tongue to lock it, which is troublesome to operate; secondly, the door lock has only one handle hole, and in actual use, the distance between the handle hole and the keyhole is short, resulting in low visual aesthetics and inability to adjust, resulting in insufficient flexibility in use; in addition, the main lock tongue is generally fixed by a movable clamping plate, and the movable clamping plate is usually connected to a torsion spring, resulting in greater resistance when unlocking, affecting use. Summary of the invention

[0004] The present invention proposes to provide a door lock which can be locked automatically, thereby solving the defects of the door lock in the prior art.

[0005] The technical solution of the present invention is achieved in this way:

[0006] An automatically lockable door lock, characterized in that it comprises an upper lock shell and a lower lock shell, wherein the upper lock shell and the lower lock shell are covered with each other to form a lock core cavity, and a linkage lock core assembly is arranged in the lock core cavity;

[0007] The linkage lock core assembly comprises a main lock tongue assembly and an inclined tongue assembly, the main lock tongue assembly is connected to a linkage locking mechanism, the inclined tongue assembly is connected to a linkage unlocking mechanism, and the linkage locking mechanism and the linkage unlocking mechanism cooperate with each other to realize an automatic locking action;

[0008] It also includes a key drive assembly and at least two handle drive assemblies, wherein the key drive assembly and the at least two handle drive assemblies are connected to the main lock tongue assembly and the oblique tongue assembly to drive the main lock tongue assembly and the oblique tongue assembly to move.

[0009] Preferably, the linkage locking mechanism includes a rear main tongue plate, a card plate and a switch connecting plate connected to the main lock tongue assembly, the card plate can be slid left and right on the inner wall of the lock core cavity, and a travel groove is also provided on the card plate, one end of the rear main tongue plate is fixedly connected to the main lock tongue assembly, and a sliding column is provided at the bottom of the other end, the sliding column is placed in the travel groove, and the card plate is driven to slide left and right by the movement of the sliding column in the travel groove, and the switch connecting plate is hinged to the main lock tongue assembly, and correspondingly, a hook is provided on the card plate, and when the main lock tongue assembly is unlocked, the hook is engaged with the switch connecting plate to lock the main lock tongue assembly.

[0010] Preferably, the card plate is provided with a plurality of sliding grooves, the inner wall of the lock core cavity is provided with a plurality of fixing columns, and the card plate is sleeved on the fixing columns through the sliding grooves.

[0011] Preferably, the travel groove includes a vertical groove and an oblique groove, and the oblique groove is connected to the rear end of the vertical groove.

[0012] When the sliding column slides to the oblique groove, the pallet is pulled to the left.

[0013] Preferably, the linkage unlocking mechanism includes a tilted bolt push rod, the tilted bolt assembly includes a tilted bolt and a tilted bolt connecting rod connected to the tilted bolt, and also includes a double-headed bracket fixed to the inner wall of the lock core cavity, the end of the tilted bolt connecting rod passes through the double-headed bracket and is connected to the tilted bolt push rod, a first spring is sleeved on the connecting rod, and also includes a pressure plate, the pressure plate is pressed on the tilted bolt connecting rod, the end of the first spring presses against the pressure plate to fix the pressure plate, a pressure block extends from the pressure plate, the pressure block is pressed onto the tilted bolt push rod, the tilted bolt push rod is provided with a push block, and the tilted bolt push rod is connected with a return spring.

[0014] Preferably, the oblique tongue push rod is L-shaped, with a long side arranged parallel to the oblique tongue connecting rod, and the push block is arranged on the long side.

[0015] Preferably, a sliding groove for an inclined tongue ejector rod is provided on the inner wall of the lock core cavity, and the bottom of the inclined tongue ejector rod is arranged in the sliding groove for the inclined tongue ejector rod.

[0016] Preferably, the key drive assembly includes a drive connecting rod, the end of the drive connecting rod is hingedly connected to a push hook assembly, the push hook assembly is hinged on the inner wall of the lock core cavity and connected to the rear main tongue plate, rotating the push hook assembly pulls the rear main tongue plate to move backward, and a shift fork plate is hingedly connected to the front end of the drive connecting rod, the shift fork plate is clamped on the inclined tongue ejector rod, driving the inclined tongue ejector rod to move.

[0017] Preferably, the push hook assembly includes an upper push hook and a lower push hook, the bottom of the lower push hook is provided with a first push column, the top surface of the lower push hook is provided with a second push column, and the search upper push hook is provided above the lower push hook and is clamped on the side of the second push column.

[0018] Preferably, the two handle drive assemblies and the key drive assemblies are arranged at intervals on the same axis.

[0019] Preferably, the handle drive assembly includes a paddle fixed on a connecting column, and the connecting column is rotatably connected to the inner wall of the lock core cavity. Correspondingly, a dial point is provided on the driving connecting rod, and the paddle is provided corresponding to the dial point.

[0020] When unlocking, the main deadbolt assembly is locked by the linkage locking mechanism. At this time, the key driving assembly or the handle driving assembly drives the inclined bolt push rod to move backward, and the inclined bolt assembly is pulled backward to complete the unlocking. After the key is pulled out, the inclined bolt push rod rebounds under the action of the rebound spring. At this time, due to the action of the shift fork piece, the inclined bolt push rod moves in a straight line, and the shift block on the inclined bolt push rod will not shift the switch connecting plate. When locking the door, the inclined bolt assembly moves backward, the inclined bolt push rod tilts, and when rebounding, the shift block on the inclined bolt push rod shifts the switch connecting plate, thereby rebounding the main deadbolt assembly to lock the door body.

[0021] Preferably, the main lock tongue assembly includes a plurality of main lock tongues, the main lock tongues are connected to a main lock tongue fixing plate, a guide rod is connected between the main lock tongue fixing plate and the inner wall of the lock core cavity, a spring is provided on the guide rod, and the switch connecting plate is hinged to the main lock tongue fixing plate.

[0022] In summary, the advantages of the present invention are:

[0023] The present invention provides an automatically lockable door lock, which realizes the function of automatically locking when the door is closed. The card plate adopts a sliding groove and a fixed column for card connection. When in use, the resistance is small. Secondly, two handle drive assemblies are provided. When in use, which handle drive assembly is selected to install the handle according to the actual situation. It is practical and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic diagram of the internal structure of an automatically locking door lock of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal partial structure of an automatically locking door lock of the present invention;

[0027] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of A. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-3 As shown, an automatically lockable door lock comprises an upper lock shell and a lower lock shell, wherein the upper lock shell and the lower lock shell cover each other to form a lock core cavity, and a linkage lock core assembly is arranged in the lock core cavity;

[0030] The linkage lock core assembly comprises a main lock tongue assembly and an inclined tongue assembly, the main lock tongue assembly is connected to a linkage locking mechanism, the inclined tongue assembly is connected to a linkage unlocking mechanism, and the linkage locking mechanism and the linkage unlocking mechanism cooperate with each other to realize an automatic locking action;

[0031] It also includes a key drive assembly and at least two handle drive assemblies, wherein the key drive assembly and the at least two handle drive assemblies are connected to the main lock tongue assembly and the oblique tongue assembly to drive the main lock tongue assembly and the oblique tongue assembly to move.

[0032] Specifically, the main lock tongue assembly includes several main lock tongues 1, the main lock tongue 1 is connected to a main lock tongue fixing plate 2, a guide rod 4 is connected between the main lock tongue fixing plate 2 and the inner wall 3 of the lock core cavity, and a spring 5 is arranged on the guide rod. This structure is a prior art and will not be repeated here.

[0033] The linkage locking mechanism comprises a rear main tongue plate 6 connected to the main lock tongue fixing plate 2,

[0034] It also includes a card plate 7 and a switch connecting plate 8, wherein the switch connecting plate 8 is hinged to the main lock tongue fixing plate, and the card plate 7 is slidably arranged on the inner wall of the lock core cavity.

[0035] The connection between the card plate and the inner wall of the lock core cavity is as follows: a plurality of sliding grooves 9 are provided on the card plate, a plurality of fixing columns 10 are provided on the inner wall of the lock core cavity, the card plate is sleeved on the fixing columns 10 through the sliding grooves, and the card plate can slide back and forth in the sliding grooves;

[0036] The card plate is also provided with a travel groove 11, and the travel groove includes a vertical groove and an oblique groove, and the oblique groove is connected to the rear end of the vertical groove. One end of the rear main tongue plate is fixedly connected to the main lock tongue fixing plate, and a sliding column 12 is provided at the bottom of the other end. The sliding column 12 is placed in the travel groove, and the card plate is driven to slide left and right by the movement of the sliding column in the travel groove, that is, when the sliding column slides to the oblique groove, the card plate is pulled to the left, and the switch connecting plate 8 is hinged to the main lock tongue assembly. Correspondingly, a hook 13 is provided on the card plate, and when the main lock tongue assembly is unlocked, the hook is engaged with the switch connecting plate to lock the main lock tongue assembly.

[0037] The linkage unlocking mechanism includes a latch bolt push rod 14, a latch bolt assembly includes a latch bolt 15 and a latch bolt connecting rod 16 connected to the latch bolt, and also includes a double-head bracket 17 fixed to the inner wall of the lock core cavity, the end of the latch bolt connecting rod passes through the double-head bracket and is connected to the latch bolt push rod. Specifically, a fixing groove is opened on the inner wall of the lock core cavity, and the double-head bracket is inserted into the fixing groove.

[0038] The connecting rod is sleeved with a first spring 18 and also includes a pressure plate 19. The pressure plate 19 is pressed on the oblique tongue connecting rod. The end of the first spring abuts against the pressure plate to fix the pressure plate. A pressure block extends from the pressure plate and is pressed onto the oblique tongue ejector rod. The function of the pressure plate is to prevent the oblique tongue ejector rod from popping out. The oblique tongue ejector rod is L-shaped, and the long side is arranged parallel to the oblique tongue connecting rod. The oblique tongue ejector rod is provided with a push block 20, which is arranged on the long side. The oblique tongue ejector rod is connected to a return spring 21, one end of the return spring is connected to the short side of the oblique tongue ejector rod, and the other end is connected to the inner wall of the lock core cavity. A slide groove for the oblique tongue ejector rod is arranged on the inner wall of the lock core cavity, and the bottom of the oblique tongue ejector rod is arranged in the slide groove 22 of the oblique tongue ejector rod;

[0039] The key drive assembly includes a drive connecting rod 23, and a push hook assembly is hinged on the end of the drive connecting rod 23. The push hook assembly is hinged on the inner wall of the lock core cavity and connected to the rear main tongue plate. The push hook assembly is rotated to pull the rear main tongue plate to move backward. The push hook assembly includes an upper push hook 25 and a lower push hook 26. A first push column is arranged at the bottom of the lower push hook, and a second push column 27 is arranged on the top surface of the lower push hook. The upper push hook is arranged above the lower push hook and is clamped on the side of the second push column. A shift fork plate is hinged on the front end of the drive connecting rod, and the shift fork plate is clamped on the inclined tongue push rod to drive the inclined tongue push rod to move.

[0040] The handle drive assembly and the key drive assembly are arranged at intervals on the same axis. The handle drive assembly includes a paddle 28, which is fixed on a connecting column 29, which is rotatably connected to the inner wall of the lock core cavity. Correspondingly, a paddle point 30 is provided on the drive connecting rod, and the paddle is arranged corresponding to the paddle point.

[0041] When unlocking, the main deadbolt assembly is locked by the linkage locking mechanism. At this time, the key driving assembly or the handle driving assembly drives the inclined bolt push rod to move backward, and the inclined bolt assembly is pulled backward to complete the unlocking. After the key is pulled out, the inclined bolt push rod rebounds under the action of the rebound spring. At this time, due to the action of the shift fork piece, the inclined bolt push rod moves in a straight line, and the shift block on the inclined bolt push rod will not shift the switch connecting plate. When locking the door, the inclined bolt assembly moves backward, the inclined bolt push rod tilts, and when rebounding, the shift block on the inclined bolt push rod shifts the switch connecting plate, thereby rebounding the main deadbolt assembly to lock the door body.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A door lock that can be locked automatically, characterized in that : It includes an upper lock shell and a lower lock shell, wherein the upper lock shell and the lower lock shell cover each other to form a lock core cavity, and a linkage lock core assembly is arranged in the lock core cavity; The linkage lock core assembly includes a main lock tongue assembly and an oblique tongue assembly, the main lock tongue assembly is connected to a linkage locking mechanism, the oblique tongue assembly is connected to a linkage unlocking mechanism, and the linkage locking mechanism and the linkage unlocking mechanism cooperate with each other to realize automatic locking action; It also includes a key drive assembly and at least two handle drive assemblies, wherein the key drive assembly and the at least two handle drive assemblies are connected to the main lock tongue assembly and the oblique tongue assembly to drive the main lock tongue assembly and the oblique tongue assembly to move; The linkage locking mechanism comprises a rear main tongue plate, a card plate and a switch connecting plate connected to the main lock tongue assembly, the card plate can be slidably arranged on the inner wall of the lock core cavity, a travel groove is also arranged on the card plate, one end of the rear main tongue plate is fixedly connected to the main lock tongue assembly, and a sliding column is arranged at the bottom of the other end, the sliding column is placed in the travel groove, and the card plate is driven to slide left and right by the movement of the sliding column in the travel groove, and the switch connecting plate is hinged on the main lock tongue assembly, and correspondingly, a card hook is arranged on the card plate, when the main lock tongue assembly is unlocked, the card hook is connected with the switch connecting plate to lock the main lock tongue assembly, a plurality of sliding grooves are arranged on the card plate, and the lock core cavity A plurality of fixing columns are arranged on the inner wall of the body, the card plate is sleeved on the fixing column through the sliding groove, the linkage unlocking mechanism includes a slanted tongue push rod, the slanted tongue assembly includes a slanted tongue and a slanted tongue connecting rod connected with the slanted tongue, and also includes a double-head bracket fixed on the inner wall of the lock core cavity, the end of the slanted tongue connecting rod passes through the double-head bracket and is connected with the slanted tongue push rod, the slanted tongue connecting rod is sleeved with a first spring, and also includes a pressure plate, the pressure plate is pressed on the slanted tongue connecting rod, the end of the first spring is pressed against the pressure plate to fix the pressure plate, a pressure block extends from the pressure plate, the pressure block is pressed on the slanted tongue push rod, the slanted tongue push rod is provided with a push block, and the slanted tongue push rod is connected with a return spring; The key drive assembly includes a drive connecting rod, the end of the drive connecting rod is connected to a push hook assembly, the push hook assembly is hinged on the inner wall of the lock core cavity and connected to the rear main tongue plate, the push hook assembly is rotated to pull the rear main tongue plate to move backward, the front end of the drive connecting rod is connected to a fork plate, the fork plate is clamped on the oblique tongue push rod, and drives the oblique tongue push rod to move, when the door is locked, the oblique tongue assembly moves backward, the oblique tongue push rod tilts, and when rebounding, the shift block on the oblique tongue push rod toggles the switch connecting plate; The two handle drive assemblies and the key drive assemblies are arranged at intervals on the same axis, the handle drive assembly includes a paddle, the paddle is fixed on a connecting column, the connecting column is rotatably connected to the inner wall of the lock core cavity, correspondingly, a dial point is provided on the drive connecting rod, the paddle is provided corresponding to the dial point, the main lock tongue assembly includes a plurality of main lock tongues, the main lock tongue is connected to a main lock tongue fixing plate, a guide rod is connected between the main lock tongue fixing plate and the inner wall of the lock core cavity, a spring is provided on the guide rod, and the switch connecting plate is hinged to the main lock tongue fixing plate.

Images