Lock body assembly capable of locking latch bolt

Abstract

The utility model relates to a lock body assembly capable of locking an inclined tongue, which comprises a shell, a main tongue and an inclined tongue rod are arranged in the shell, and an inclined tongue head which can be extruded by a door frame to rotate so as to push the inclined tongue rod to retract into the shell is arranged at one end of the inclined tongue rod in a relative rotation mode. The shell is movably provided with a locking block capable of locking the latch bolt to prevent the latch bolt from rotating, a main shifting block is rotatably arranged in the shell, a main bolt shifting block capable of shifting the main bolt is rotatably arranged on the main shifting block, and an idling groove is formed in the main bolt shifting block; the main shifting block is provided with a shifting head which can slide in the idling groove and abut against the side walls of the two ends of the idling groove to shift the main tongue shifting block, the main shifting block is provided with a driving wheel which is driven by the motor to drive the main shifting block to rotate, and the shell is rotationally provided with a driven wheel driven by the driving wheel and a shifting block which is driven by the driven wheel to shift the locking block to be locked or unlocked. The door lock is simple in structure and convenient to use, and the latch bolt can be locked when the door is closed.

Description

[Technical field]

[0001] The utility model relates to a lock body component. [Background technology]

[0002] The lock body generally includes a shell, in which a main tongue (square tongue) and an inclined tongue are arranged. The main tongue needs to be moved and retracted by a toggle, while the inclined tongue can be pressed and retracted. If the inclined tongue is locked alone, it is easy to open the lock. Therefore, the square tongue is usually extended and locked to improve the anti-theft effect. Since the free extension and retraction of the inclined tongue will reduce the anti-theft performance of the lock body, some lock bodies that can lock the inclined tongue have been developed on the market. After the inclined tongue is locked, the door cannot be opened by simple tools, which can improve the overall anti-theft performance of the lock body together with the main tongue. Currently, there are lock bodies on the market that can lock the inclined tongue, such as the lock body assembly with application number 201810179287.7, which is called a lock body assembly. It uses a locking plate to support the inclined tongue to retract, but in order to unlock it, more parts are used, and the unlocking needs to follow the action of the square tongue, which is inconvenient to use and costly. [Contents of the utility model]

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a lock body assembly which has a simple structure and low cost and can lock an inclined bolt.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A lock body assembly capable of locking an inclined tongue comprises a shell, wherein a main tongue and an inclined tongue rod are arranged in the shell, wherein one end of the inclined tongue rod is relatively rotatable and is provided with an inclined tongue which can be squeezed and rotated by a door frame to push the inclined tongue rod to retract into the shell, and wherein the shell is characterized in that: the shell is movably provided with a lock block which can lock the inclined tongue so that the inclined tongue cannot rotate, a main dial head is rotatably arranged in the shell, a main dial head which can be rotatably arranged on the main dial head and can be used to dial the main tongue, an idle groove is arranged on the main dial head, a dial head which can slide in the idle groove and abut against the side walls at both ends of the idle groove to dial the main tongue dial head, a driving wheel which is driven by a motor to drive the main dial head to rotate is arranged on the main dial head, and a driven wheel which is driven by the driving wheel and a dial block which is driven by the driven wheel to dial the lock block to lock or unlock is arranged on the shell.

[0006] The lock body assembly capable of locking the oblique tongue as described above is characterized in that a locking groove is provided on the side wall of the oblique tongue, and a locking platform capable of being inserted into the locking groove is provided on the locking block.

[0007] The lock body assembly capable of locking the inclined bolt as described above is characterized in that: the locking block is provided with a shifting groove, and the shifting block is provided with a first shifting fork with one end extending into the shifting groove.

[0008] The lock body assembly capable of locking the inclined bolt as described above is characterized in that: the shift block is provided with a second shift fork, the second shift fork is provided with a linkage groove, the linkage groove extends along the length direction of the second shift fork, and the driven wheel is provided with a shift column extending into the linkage groove to drive the shift block to rotate.

[0009] The lock body assembly capable of locking the oblique bolt as described above is characterized in that a round block is arranged in the shell, a round groove which is sleeved on the round block is arranged on the driven wheel, and the center of the round groove deviates from the center of the driven wheel.

[0010] The lock body assembly capable of locking the oblique tongue as described above is characterized in that: a safety tongue which can be squeezed back into the shell by the door frame is provided in the shell, and a touch switch which is triggered by the safety tongue when the safety tongue is retracted into the shell to send a signal to control the motor to start and drive the main dial head to reset.

[0011] A lock body assembly capable of locking an inclined tongue as described above is characterized in that: the upper and lower ends of the shell are respectively provided with a first guide groove and a second guide groove extending toward one side of the inclined tongue, and the two ends of the lock block are respectively provided with a guide column inserted into the first guide groove and a long strip boss inserted into the second guide groove.

[0012] The utility model has the following beneficial effects: the inclined tongue is squeezed and rotated when the door is closed, so that the end of the inclined tongue that is squeezed between the inclined tongue and the door leaf becomes an inclined surface, so that after continued squeezing, the inclined tongue can be retracted into the shell under the action of the inclined surface, and the inclined tongue is locked by arranging a locking block, so that the inclined tongue will not rotate, and the locking block is driven by the driving wheel driven by the motor, and an idle groove is arranged between the main dial head and the main tongue dial head, so that the movement of the main tongue and the inclined tongue will not interfere with each other, the structure is simple, the use is convenient, and the production cost is low; in order to ensure that the inclined tongue can be locked after closing the door, a safety tongue and a touch switch are arranged, when the door is closed, the safety tongue is squeezed and retracted, and the touch switch is touched to generate a signal, so that the motor rotates to make the lock block move to lock, the structure is simple, and the use is convenient.

Brief Description of the Drawings

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is an exploded view of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the components of the utility model. [Specific implementation method]

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0017] like Figures 1 to 3As shown, a lock body assembly capable of locking a latch bolt comprises a housing 1, wherein a main bolt 2 and a latch bolt rod 3 are arranged in the housing 1, wherein the main bolt 2 and the latch bolt rod 3 can be extended and retracted toward one side of the inner lining plate, and the housing 1 is provided with a spring to press the latch bolt rod 3 so that the latch bolt rod 3 can be reset. A latch bolt 31 capable of being relatively rotatably arranged at one end of the latch bolt rod 3, which can be pressed and rotated by the door frame to push the latch bolt rod 3 to retract into the housing 1, wherein one end of the latch bolt 31 is an inclined surface and the other end is a flat surface. When the door is closed, one end of the flat surface abuts against the edge of the bolt hole of the door frame. When the door is opened, the door frame moves the latch bolt 31 to rotate, so that one end of the flat surface rotates into an inclined surface. Thus, under the action of the inclined surface, the door frame presses the latch bolt 31, so that the latch bolt 31 retracts into the housing 1. The housing 1 is movably provided with a lock block 4 capable of locking the latch bolt 31 so that the latch bolt 31 cannot rotate, and the lock block 4 is plugged into the latch bolt 31. A main dial head 5 is rotatably provided in the housing 1. The main dial head 5 can be driven to rotate by a lock core, etc. A main tongue dial head 6 that can move the main tongue 2 is rotatably provided on the main dial head 5. The main tongue dial head 6 is provided with an idle groove 61. The main dial head 5 is provided with a dial head 50 that can slide in the idle groove 61 and lean against the side walls at both ends of the idle groove 61 to move the main tongue dial head 6. When the dial head 50 slides in the idle groove 61, the main tongue dial head 6 does not move, and the main dial head 5 is idle until it is blocked against the side walls at both ends of the idle groove 61 to drive the main tongue dial head 6. The main dial head 5 is provided with a driving wheel 51 driven by a motor to drive the main dial head 5 to rotate. The housing 1 is rotatably provided with a driven wheel 7 driven by the driving wheel 51 and a dial block 8 driven by the driven wheel 7 to lock or unlock the lock block 4. The driving wheel 51 and the driven wheel 7 are respectively provided with teeth that can mesh with each other in an arc of about 90°.

[0018] In order to facilitate installation, a locking groove 32 is provided on the side wall of the oblique tongue 31, and the locking groove 32 extends along the telescopic direction of the oblique tongue rod 3. A locking platform 41 that can be inserted into the locking groove 32 is provided on the locking block 4, and the locking platform 41 is a square convex block. A shifting groove 42 is provided on the locking block 4, and the shifting groove 42 is a groove with an upper opening. A first shifting fork 81 is provided on the shifting block 8, and one end of the shifting fork 81 extends into the shifting groove 42. The first shifting fork 81 shifts the side wall in the groove to drive the locking block 4 to move. The upper and lower ends of the housing 1 are respectively provided with a first guide groove 12 and a second guide groove 13 extending to one side of the oblique tongue 31. The two ends of the locking block 4 are respectively provided with a guide column 43 inserted into the first guide groove 12 and a long strip convex platform 44 inserted into the second guide groove 13. The double-sided guide makes the locking block 4 slide smoothly.

[0019] The shift block 8 is provided with a second shift fork 82, and the second shift fork 82 is provided with a linkage groove 83, which extends along the length direction of the second shift fork 82. The driven wheel 7 is provided with a shift post 71 that extends into the linkage groove 83 and can drive the shift block 8 to rotate. The linkage groove 83 is a waist-shaped hole to prevent jamming. In order to prevent loosening, a torsion spring can be provided on the shift block 8 to prevent the shift block 8 from loosening. A round block 11 is provided in the housing 1, and a round groove 72 is provided on the driven wheel 7, which is sleeved on the round block 11. The center of the round groove 72 deviates from the center of the driven wheel 7. When the driven wheel 7 rotates eccentrically, the shift post 71 will move along the length direction in the linkage groove 83, which can prevent jamming.

[0020] In order to let the motor judge when the door leaf is closed, the housing 1 is provided with a safety tongue 9 which can be squeezed back into the housing 1 by the door frame, and a touch switch 10 which sends a signal to control the motor to start and drive the main dial head 5 to reset when the safety tongue 9 is retracted into the housing 1. When closing the door, the safety tongue 9 is squeezed back, thereby touching the touch switch 10 to generate a signal, which makes the motor rotate in about 3s or 5s, so that the lock block 4 is locked.

[0021] Initially, the oblique tongue 31 is in a locked state, the main tongue 2 is in an extended state, and the toggle head 50 is against a side wall of the idle groove 61 (attached Figure 2 The side wall at the upper end of the middle), when unlocking, after the motor receives the electrical signal, it drives the driving wheel 51 to rotate (each action rotates about 90°, which is defined as forward rotation at this time), the driving wheel 51 rotates to drive the main dial head 5 and the dial block 8 to rotate, the main dial head 5 drives the main tongue dial head 6 to dial the main tongue 2 to retract, and the dial block 8 dials the lock block 4 to unlock the square tongue, completing the door opening action. At this time, the touch switch 10 is set not to work (for example, by setting a sensor on the door frame, the touch switch 10 is not powered when the sensing door is opened). When closing the door, the safety tongue 9 touches the touch switch 10, allowing the motor to rotate, the main dial head 5 and the driving wheel 51 to rotate, and at this time, the main dial head 5 is idle and does not dial the main tongue dial head 6. When reverse locking is required, the motor receives an electrical signal and reverses again. The teeth on the driving wheel 51 and the driven wheel 7 are no longer engaged. Therefore, the driven wheel 7 does not rotate. At this time, the shifting head 50 is on the other side wall of the idle groove 61, and the main tongue shifting head 6 is rotated to drive the main tongue 2 to extend. When the main tongue 2 is extended, the motor can no longer rotate, the current increases, and the motor rotates forward to reset.

Claims

1. A lock assembly capable of locking a latch bolt, comprising a housing (1), wherein a main bolt (2) and a latch bolt rod (3) are arranged in the housing (1), wherein one end of the latch bolt rod (3) is relatively rotatably provided with a latch bolt (31) which can be squeezed and rotated by a door frame to push the latch bolt rod (3) to retract into the housing (1), characterized in that: The housing (1) is movably provided with a lock block (4) capable of locking the oblique tongue (31) so that the oblique tongue (31) cannot rotate. The housing (1) is rotatably provided with a main dial head (5). The main dial head (5) is rotatably provided with a main tongue dial head (6) capable of dialing the main tongue (2). The main tongue dial head (6) is provided with an idle groove (61). The main dial head (5) is provided with a dial head (50) capable of sliding in the idle groove (61) and leaning against the side walls at both ends of the idle groove (61) to dial the main tongue dial head (6). The main dial head (5) is provided with a driving wheel (51) driven by a motor to drive the main dial head (5) to rotate. The housing (1) is rotatably provided with a driven wheel (7) driven by the driving wheel (51) and a dial block (8) driven by the driven wheel (7) to dial the lock block (4) to lock or unlock.

2. A lock body assembly capable of locking a latch bolt according to claim 1, characterized in that: A locking groove (32) is provided on the side wall of the oblique tongue (31), and a locking platform (41) which can be inserted into the locking groove (32) is provided on the locking block (4).

3. A lock body assembly capable of locking a latch bolt according to claim 1, characterized in that: The locking block (4) is provided with a shifting groove (42), and the shifting block (8) is provided with a first shifting fork (81) with one end extending into the shifting groove (42).

4. A lock body assembly capable of locking a latch bolt according to claim 1, characterized in that: The shift block (8) is provided with a second shift fork (82), the second shift fork (82) is provided with a linkage groove (83), the linkage groove (83) extends along the length direction of the second shift fork (82), and the driven wheel (7) is provided with a shift column (71) extending into the linkage groove (83) and capable of driving the shift block (8) to rotate.

5. A lock body assembly capable of locking a latch bolt according to claim 4, characterized in that: A round block (11) is arranged in the housing (1), and a circular groove (72) which is sleeved on the round block (11) is arranged on the driven wheel (7), and the center of the circular groove (72) deviates from the center of the driven wheel (7).

6. A lock body assembly capable of locking a latch bolt according to claim 1, characterized in that: The housing (1) is provided with a safety tongue (9) which can be squeezed back into the housing (1) by the door frame, and a touch switch (10) which, when the safety tongue (9) is retracted into the housing (1), is contacted by the safety tongue (9) to send a signal to control the motor to start and drive the main dial head (5) to reset.

7. A lock body assembly capable of locking a latch bolt according to claim 1, characterized in that: The upper and lower ends of the housing (1) are respectively provided with a first guide groove (12) and a second guide groove (13) extending toward one side of the oblique tongue (31); the two ends of the locking block (4) are respectively provided with a guide column (43) inserted into the first guide groove (12) and a long strip boss (44) inserted into the second guide groove (13).

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