CN216305658U

CN216305658U - Anti-locking lock body

Info

Publication number: CN216305658U
Application number: CN202121618239.7U
Authority: CN
Inventors: 沈强
Original assignee: Zhongshan Lekeduo Lock Co ltd
Current assignee: Zhongshan Lekeduo Lock Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-04-15
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses an anti-locking lock body which comprises a lock shell, wherein a lock cylinder hole for installing a lock cylinder is formed in the lock shell, a lock tongue assembly, an oblique tongue assembly, a rotating piece and a movable push rod are arranged in the lock shell, the lock tongue assembly comprises a main tongue mounting plate and a main lock tongue, and the main tongue mounting plate can be pushed by a thumb wheel of the lock cylinder to extend out of or retract into the lock shell; the oblique bolt component comprises an oblique bolt mounting piece and an oblique bolt; when the rotating piece rotates, the oblique bolt mounting piece is pushed so that the oblique bolt can be retracted into the lock shell; the movable push rod is arranged on the main bolt mounting plate through a floating guide mechanism, and after the main bolt is retracted into the lock shell, the thumb wheel of the lock core can push the movable push rod to enable the movable push rod to move upwards and push the rotating piece to rotate. The movable push rod is floating, and when the thumb wheel pushes the movable push rod upwards, the thumb wheel can be prevented from being blocked by the movable push rod due to over rotation.

Description

Anti-locking lock body

Technical Field

The utility model relates to a lock body, in particular to an anti-locking lock body.

Background

The large door lock, also called a door lock for home entry, is a lock (excluding an indoor door lock) equipped on a main door of a whole building leading to the outside, and is usually extremely firm due to the particularity of the position of the large door lock, and the commonly used large door lock comprises an anti-theft door lock, a glass door lock and the like.

The lock body of big lock generally has three kinds of bolts such as main bolt, oblique bolt, insurance bolt, can open oblique bolt through rotating the door handle, can open main bolt and oblique bolt through the key, and in daily use, mainly use main bolt and oblique bolt to lock and carry out the theftproof.

When the key is turned for the third circle, the shifting wheel of the lock core pushes a movable push rod arranged on the main bolt mounting plate upwards, and when the movable push rod moves upwards, the oblique bolt is retracted into the lock shell through some transmission parts. However, these push rods can only move up and down, and cannot move in the left-right direction, when the thumb wheel rotates and pushes the movable push rod upwards, if the thumb wheel rotates excessively to a position between the movable push rod and the main tongue mounting plate, the movable push rod resets downwards under the action of the reset spring at this time, the thumb wheel is blocked, and the whole lock body is blocked.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an anti-jamming lock body.

The utility model provides an anti-sticking is dead lock body, includes the lock shell, the lock shell on be provided with the lock core hole that is used for installing the lock core, the lock shell in be provided with:

the lock bolt assembly comprises a main bolt mounting plate and a main lock bolt arranged on the main bolt mounting plate, and the main bolt mounting plate can be pushed by a thumb wheel of the lock cylinder to extend out of or retract into the lock shell;

the oblique bolt assembly comprises an oblique bolt mounting part and an oblique bolt arranged at one end of the oblique bolt mounting part;

the rotating piece pushes the oblique bolt mounting piece to enable the oblique bolt to be retracted into the lock shell when rotating;

the movable push rod is installed on the main bolt installation plate through a floating guide mechanism so that the movable push rod can vertically move and horizontally swing on the main bolt installation plate, after the main bolt is taken into the lock shell, the thumb wheel of the lock cylinder can push the movable push rod so that the movable push rod upwards moves and pushes the rotating piece to rotate, and a second reset spring used for driving the movable push rod to reset is arranged between the main bolt installation plate and the movable push rod.

Preferably, the floating guide mechanism comprises a vertical guide groove arranged on the movable push rod, and a pin fixed on the main tongue mounting plate and matched with the guide groove in a sliding manner.

Preferably, the portion of the pin located within the guide slot is cylindrical.

Preferably, the main bolt extends out of the lock case when moving leftwards, the main bolt retracts into the lock case when moving rightwards, and the main bolt mounting plate is provided with a limiting table capable of limiting the movable push rod to swing rightwards.

Preferably, the upper end of the guide groove is closed, the second return spring is obliquely connected between the movable push rod and the main tongue mounting plate, and when the thumb wheel of the lock cylinder is separated from the movable push rod, the second return spring presses the movable push rod against the limiting table through elasticity and presses the upper end of the guide groove against the pin.

The utility model has the beneficial effects that: the movable push rod is installed on the main tongue mounting panel through the guiding mechanism that floats, can give the movable push rod direction in the upper and lower direction, and the movable push rod also can swing round foretell pin simultaneously, and when the thumb wheel clockwise rotation pushed up the movable push rod, if the thumb wheel rotated the right side of excessively to the movable push rod, can push up the movable push rod through the anticlockwise rotation thumb wheel of key, avoided the dead condition of card to appear.

Drawings

FIG. 1 is a front view of the lock body in the locked condition;

FIG. 2 is a front view of the lock body in the locked position with portions of the lock housing omitted;

FIG. 3 is a front view of the lock body in the unlocked position with a portion of the lock housing omitted;

FIG. 4 is a perspective view of the transmission member;

FIG. 5 is a schematic diagram showing the positional relationship between the first and second arcuate slots and the thumb wheel of the lock cylinder;

figure 6 is a connection diagram of the main motion parts of the lock body.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 6, an embodiment of the present invention provides a lock body, which includes a lock case 1, and a lock cylinder hole 11 for installing a lock cylinder 4 is provided on the lock case 1. A bolt assembly and a transmission piece 3 are arranged in the lock shell 1, the bolt assembly comprises a main bolt mounting plate 21 and a main bolt 22 arranged on the main bolt mounting plate 21, a main bolt hole corresponding to the main bolt 22 is arranged on the lock shell 1, and the bolt assembly can move left and right relative to the lock shell 1 to enable the main bolt 22 to extend out of or retract into the lock shell 1; a guide structure capable of enabling the transmission piece 3 to move along an arc-shaped track is arranged between the transmission piece 3 and the lock shell 1, a push bearing structure capable of being matched with a thumb wheel 41 of the lock cylinder 4 is arranged on the transmission piece 3, so that the lock cylinder 4 installed in the lock cylinder hole 11 can push the transmission piece 3 to move along the guide structure through the thumb wheel 41, a transmission structure is arranged between the transmission piece 3 and the main bolt installation plate 21, and the transmission piece 3 drives the bolt assembly to move left and right through the transmission structure when moving along the guide structure.

The lock body of the utility model needs to be matched with the lock core 4 and a key for use, and when the lock body is used, the lock core 4 is fixedly arranged in the lock core hole 11; in order to lock the bolt assembly after unlocking and locking, a sliding block 8 capable of locking the main bolt mounting plate 21 is also generally arranged in the lock body, and the sliding block 8 is connected with a spring or a torsion spring capable of pressing the sliding block 8 and the main bolt mounting plate 21.

Referring to the view shown in fig. 1-3, when the thumb wheel 41 of the lock cylinder 4 is driven by a key to rotate counterclockwise, the thumb wheel 41 firstly pushes the slider 8 open to unlock the main tongue mounting plate 21, and then pushes the push-bearing structure on the transmission member 3 to move the transmission member 3 along the arc-shaped track of the guide structure, when the transmission member 3 moves, the transmission structure drives the tongue assembly to move leftward to extend the main tongue 22 out of the lock case 1, so as to achieve the effect of closing the lock, and after the lock is closed, the slider 8 automatically locks the main tongue mounting plate under the action of elasticity. When the thumb wheel 41 of the lock cylinder 4 is driven by a key to rotate clockwise, the thumb wheel 41 firstly jacks the sliding block 8 to unlock the main bolt mounting plate 21, then the pushing structure on the transmission piece 3 is pushed to enable the transmission piece 3 to move reversely along the arc-shaped track of the guide structure, when the transmission piece 3 moves, the transmission structure drives the bolt assembly to move rightwards so that the main bolt 22 is accommodated in the lock shell 1, the lock closing effect is achieved, and after the lock is closed, the sliding block 8 automatically locks the main bolt mounting plate under the action of elastic force. The driving part 3 is used for transmitting power, so that the main bolt 22 can be locked or unlocked only by rotating the thumb wheel 41 of the lock core 4 by one turn, namely the lock can be locked or unlocked only by rotating the key by one turn, the lock is convenient and quick, the middle gear of the bolt assembly is cancelled, and the lock is not easy to block.

In a preferred embodiment of the utility model, the guide structure comprises an arc-shaped slot provided in the lock housing 1 and a guide pin provided in the transmission member 3 and slidably engaged with the arc-shaped slot.

Specifically, the guide pins include a first guide pin 301 located at the head end of the transmission member 3 and a second guide pin 302 located at the tail end of the transmission member 3, and the arc-shaped grooves include a first arc-shaped groove 101 slidably engaged with the first guide pin 301 and a second arc-shaped groove 102 engaged with the second guide pin 302. By adopting the structure, the guide is more stable.

Further, the first arc-shaped groove 101 and the second arc-shaped groove 102 are both arc-shaped grooves, and the first arc-shaped groove 101 and the second arc-shaped groove 102 are coaxial and are concentric in a front view. By adopting the structure, the transmission piece 3 can be ensured to do circular motion around the common axis of the first arc-shaped groove 101 and the second arc-shaped groove 102 when moving, the formation of the transmission piece is convenient to calculate, and the design and calculation precision can be improved.

In a preferred embodiment of the present invention, the pushing structure is a groove 31 disposed on a side of the transmission member 3 facing the cylinder hole 11, and an axis a of the first arc-shaped groove 101 is offset from an axis B of the thumb wheel 41 of the cylinder 4 and is parallel to the axis B. Because the axis a and the axis B deviate from a certain distance, in the process that the transmission member 3 moves along the arc-shaped groove, the distance between the groove 31 and the axis B gradually changes, so that the thumb wheel 41 will naturally fall out of the groove 31 of the transmission member 3 after pushing a certain stroke when pushing the transmission member 3, and the thumb wheel 41 will enter the groove 31 first when rotating, and will fall out of the groove 31 after pushing the rotation member 6 for a certain stroke.

In some embodiments of the present invention, the above-mentioned push-bearing structure may also adopt other structural forms, for example, a protrusion disposed on the transmission member 3 is used, and the lock is opened and closed by pushing two side walls of the protrusion.

In a preferred embodiment of the present invention, the transmission member 3 has an arc-shaped edge 32, and the transmission structure includes a plurality of teeth 33 provided on the arc-shaped edge 32, and a rack 211 provided on the tongue mounting plate 21 and engaged with the teeth 33. Further, the arc-shaped edge 32 is a circular arc edge and is coaxial with the arc-shaped groove. And the view from the front view is concentric.

In one scheme of the utility model, an oblique bolt assembly is further arranged in the lock shell 1 and comprises an oblique bolt mounting piece 51 and an oblique bolt 52 arranged at one end of the oblique bolt mounting piece 51, an oblique bolt hole corresponding to the oblique bolt 52 is formed in the lock shell 1, the oblique bolt assembly can move left and right relative to the lock shell 1 to enable the oblique bolt 52 to extend out of or retract into the lock shell 1, and an oblique bolt retracting mechanism capable of retracting the oblique bolt 52 into the lock shell 1 after the main bolt 22 retracts into the lock shell 1 is arranged in the lock shell 1. A first return spring 53 capable of driving the inclined bolt 52 to extend out of the lock shell 1 is arranged in the lock shell 1.

Specifically, the oblique bolt retracting mechanism comprises a rotating piece 6 and a movable push rod 71, wherein the rotating piece 6 is arranged on the lock shell 1, and when the rotating piece 6 rotates, the oblique bolt mounting piece 51 is pushed by the rotating piece 6 so that the oblique bolt 52 can be retracted into the lock shell 1; the movable push rod 71 is mounted on the main bolt mounting plate 21, after the main bolt 22 is received in the lock case 1, the thumb wheel 41 of the lock cylinder 4 pushes the movable push rod 71 to move the movable push rod 71 upward and push the rotating member 6 to rotate, and a second return spring 72 for driving the movable push rod 71 to return is arranged between the main bolt mounting plate 21 and the movable push rod 71. In the scheme, when the lock body is in a locked state, the thumb wheel 41 of the key and the lock cylinder 4 rotates for one circle to store the main bolt 22 into the lock shell 1, the thumb wheel 41 of the key and the lock cylinder 4 rotates for a second circle, and the thumb wheel 41 upwards pushes the movable push rod 71, so that the inclined bolt 52 can be stored into the lock shell 1.

The rotating piece 6 can be a peach-poking piece of the lock body for installing a handle, or a rotating piece 6 can be independently arranged, the scheme that the peach-poking piece is used as the rotating piece 6 is shown in fig. 6, a poking piece 62 and a push bearing piece 61 are arranged on the peach-poking piece, when the movable push rod 71 moves upwards, the push bearing piece 61 is pushed, the peach-poking piece is enabled to rotate, the peach-poking piece pushes the latch bolt installation piece 51 to move rightwards through the poking piece 62, and then the latch bolt 52 is collected into the lock shell 1.

Further, the movable push rod 71 is mounted on the main tongue mounting plate 21 through a floating guide mechanism so that the movable push rod 71 can move up and down and swing left and right with respect to the main tongue mounting plate 21.

Referring to fig. 1-3, main bolt 22 extends out of housing 1 when moving to the left and main bolt 22 retracts into housing 1 when moving to the right.

Specifically, the floating guide mechanism includes a vertical guide groove 711 provided on the movable push rod 71, and a pin 212 fixed to the main tongue mounting plate 21 and slidably engaged with the guide groove 711, and a portion of the pin 212 located in the guide groove 711 has a cylindrical shape. The main tongue mounting plate 21 is provided with a limit table 213 capable of limiting the rightward swing of the movable push rod 71. The upper end of the guide groove 711 is closed, the second return spring 72 is connected between the movable push rod 71 and the tongue mounting plate 21 in an inclined manner, and when the thumb wheel 41 of the key cylinder 4 is disengaged from the movable push rod 71, the second return spring 72 presses the movable push rod 71 against the stopper base 213 by an elastic force and presses the upper end of the guide groove 711 against the pin 212. The number of the second return springs 72 is generally 1, 2 or 3.

The movable push rod 71 is mounted on the main tongue mounting plate 21 through the floating guide mechanism, so that the movable push rod 71 can be guided in the up-down direction, meanwhile, the movable push rod 71 can also swing around the pin 212, when the thumb wheel 41 rotates clockwise and pushes the movable push rod 71 upwards, if the thumb wheel 41 rotates excessively to a position between the movable push rod 71 and the transmission member 3, the thumb wheel 41 can be rotated anticlockwise through a key, so that the movable push rod 71 can be pushed open, and the occurrence of the dead locking condition is avoided.

In some aspects of the present invention, the floating guide mechanism may also be configured in other ways, such as by changing the positions of the guide groove 711 and the pin 212.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical scope of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. The utility model provides an anti-sticking is dead lock body, its characterized in that, includes lock shell (1), lock shell (1) on be provided with lock core hole (11) that are used for installing lock core (4), lock shell (1) in be provided with:

the bolt assembly comprises a main bolt mounting plate (21) and a main bolt (22) arranged on the main bolt mounting plate (21), wherein the main bolt mounting plate (21) can be pushed by a thumb wheel of the lock cylinder (4) to extend out of or retract into the lock shell (1);

the oblique bolt assembly comprises an oblique bolt mounting piece (51) and an oblique bolt (52) arranged at one end of the oblique bolt mounting piece (51);

the rotating piece (6) pushes the oblique bolt mounting piece (51) when the rotating piece (6) rotates so as to enable the oblique bolt (52) to be retracted into the lock shell (1);

activity push rod (71), activity push rod (71) through one floating guide mechanism install in order to make on main tongue mounting panel (21) activity push rod (71) can be right main tongue mounting panel (21) reciprocate and the horizontal hunting, main spring bolt (22) income lock shell (1) back, thumb wheel (41) of lock core (4) can push away activity push rod (71) so that activity push rod (71) rebound and top push away rotate piece (6) and rotate, main tongue mounting panel (21) and activity push rod (71) between be provided with and be used for the drive second reset spring (72) that activity push rod (71) reset.

2. An anti-lock according to claim 1, wherein said floating guide means comprises a vertical guide slot (711) provided in said movable push rod (71), and a pin (212) fixed to said main tongue mounting plate (21) and slidably engaged with said guide slot (711).

3. An anti-jamming lock according to claim 2, characterised in that the part of the pin (212) located within the guide slot (711) is cylindrical.

4. The anti-jamming lock body according to claim 2, characterized in that the main bolt (22) extends out of the lock case (1) when moving leftwards, the main bolt (22) retracts into the lock case (1) when moving rightwards, and the main bolt mounting plate (21) is provided with a limit table (213) capable of limiting the movable push rod (71) to swing rightwards.

5. An anti-seize lock according to claim 4, characterized in that the upper end of the guide groove (711) is closed, the second return spring (72) is connected obliquely between the movable push rod (71) and the main tongue mounting plate (21), and when the thumb wheel (41) of the lock cylinder (4) is disengaged from the movable push rod (71), the second return spring (72) presses the movable push rod (71) against the limit stop (213) by means of elastic force and presses the upper end of the guide groove (711) against the pin (212).