A self-locking anti-lock lock body

Abstract

The invention discloses a self-locking reverse locking lock body, comprising a lock shell and a lock tongue, a lock tongue driving member matched with a square shaft is arranged on the lock shell, a lock tongue protrusion matched with the lock tongue is arranged on the lock tongue driving member, and a reverse locking assembly for blocking the rotation of the lock tongue driving member is arranged on one side of the lock tongue driving member; the reverse locking assembly comprises a blocking swinging member, a blocking torsion spring and a reverse locking driving piece matched with a reverse locking strip; the reverse locking driving piece is provided with a supporting portion abutting against the blocking swinging member, and the supporting portion will stagger with the blocking swinging member as the reverse locking driving piece rotates, so that one end of the blocking swinging member is placed in the reverse locking recess of the lock tongue driving member under the action of the blocking torsion spring, and the blocking lock tongue driving member rotates to push the lock tongue to move to realize the reverse locking function. The invention overcomes the defect that the traditional lock body needs a reverse locking lock core to reverse lock, so that the lock body structure is simpler and the lock body volume is also more compact.

Description

Technical Field

[0001] The present invention relates to the field of door locks, and more specifically, it relates to a self-locking anti-lock lock body. Background Art

[0002] The lock body is one of the components of a lock. There are many types of lock bodies. Common lock bodies include triple double-tongue lock bodies and double-tongue lock bodies. The lock body is responsible for opening or locking doors and windows and plays an important role in anti-theft. Among them, the double-tongue lock body usually uses an oblique lock tongue and a square lock tongue to achieve the effects of opening and closing and insurance anti-lock respectively. Therefore, components that are linked to the oblique lock tongue and the square lock tongue respectively need to be set, and the overall structure is still relatively complex. And the single-tongue lock body usually does not have the effect of insurance anti-lock.

[0003] Currently, a Chinese patent with the application number 201820154552.1 discloses a single-tongue lock body, which includes a lock case. The lock case includes a panel assembly, a bottom plate assembly, and a cover plate assembly. An oblique tongue assembly is provided inside the lock case. The oblique tongue assembly includes a lock tongue and an elastic member that drives the lock tongue to pop out of the lock case. A slider is also provided inside the lock case, which can only horizontally displace along a single straight line direction and forms two states of insurance and non-insurance in the straight-line movement direction; an insurance assembly that can be circumferentially rotated to control the slider to displace along the straight line direction to realize the switching of the slider between the two position states of insurance and non-insurance; an unlocking assembly, the unlocking assembly includes a rotary drive assembly and a linkage assembly that drive the slider to move in the direction away from the insurance state position when the slider is in the non-insurance state position, and the linkage assembly is driven by the slider to drive the lock tongue to retract into the lock case when the slider continues to displace. The insurance assembly drives the slider to switch between the insurance state and the non-insurance state. In the non-insurance state, the unlocking assembly drives the slider to continue to move and drives the slider to retract into the lock case through the linkage assembly.

[0004] Although this single-tongue lock realizes the anti-lock function, this anti-lock function still requires an anti-lock lock core to be provided inside the lock body, and then the anti-lock lock core is used to drive the slider to move to realize the two position states of insurance and non-insurance of the lock tongue. The structure is still relatively complex. At the same time, the lock body also needs to leave enough space to set the anti-lock lock core, and the volume of the lock body cannot be reduced. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a self-locking anti-lock lock body with a simple structure and a compact volume.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A self-locking anti-lock lock body, comprising a lock shell and a lock tongue. A lock tongue driving member cooperating with a square shaft is arranged on the lock shell. A lock tongue protrusion cooperating with the lock tongue is arranged on the lock tongue driving member. An anti-lock assembly for blocking the rotation of the lock tongue driving member is arranged on one side of the lock tongue driving member. The anti-lock assembly includes a blocking swing member, a blocking torsion spring, and an anti-lock driving piece cooperating with an anti-lock bar. The anti-lock driving piece is provided with an abutting portion abutting against the blocking swing member. The abutting portion will be staggered from the blocking swing member as the anti-lock driving piece rotates, so that one end portion of the blocking swing member is placed in an anti-lock recess of the lock tongue driving member under the action of the blocking torsion spring, blocking the rotation of the lock tongue driving member and pushing the lock tongue to move.

[0008] The present invention is further provided that: the lock tongue driving member includes a lock tongue outer driving piece cooperating with an outer square shaft and a lock tongue inner driving piece cooperating with an inner square shaft. The anti-lock driving piece is placed between the lock tongue outer driving piece and the lock tongue inner driving piece. The anti-lock bar passes through the inner square shaft to drive the anti-lock driving piece to rotate.

[0009] The present invention is further provided that: the lock tongue outer driving piece and the lock tongue inner driving piece are fixedly connected by a connecting fixed shaft. The anti-lock driving piece is provided with a rotating chute cooperating with the connecting fixed shaft.

[0010] The present invention is further provided that: the anti-lock driving piece is further provided with a limit protrusion portion, and the limit protrusion portion will abut against the blocking swing member to block the anti-lock driving piece from continuing to rotate.

[0011] The present invention is further provided that: one end portion of the blocking swing member is swingably arranged on the lock shell through a swing shaft, and the other end portion is provided with an anti-lock column adapted to the anti-lock recess. The blocking torsion spring is installed on the swing shaft and cooperates with the blocking swing member.

[0012] The present invention is further provided that: the lock tongue is provided with a lock tongue slider cooperating with the lock tongue driving member. The lock tongue slider is provided with a buffer rubber block. During the process of the lock tongue driving the lock tongue slider to move, the lock tongue slider touches a limit post on the lock shell through the buffer rubber.

[0013] The invention has the following beneficial effects: when the lock body needs to be reversed, it only needs to drive the reverse lock driving piece to rotate through the reverse lock bar. At this time, the abutment portion will be staggered with the blocking swinging piece as the reverse lock driving piece rotates. After the blocking swinging piece loses its abutment, the blocking swinging piece will swing toward the lock tongue driving piece under the action of the blocking torsion spring, so that one end of the blocking swinging piece is placed in the reverse lock recessed portion of the lock tongue driving piece, and the blocking lock tongue driving piece rotates to push the lock tongue to move, thereby realizing the reverse lock function. When unlocking is required, it only needs to reversely rotate the reverse lock driving piece so that the abutment portion of the reverse lock driving piece abuts against the blocking swinging piece again, pushing the blocking swinging piece to separate from the reverse lock recessed portion, and releasing the blocking swinging piece from blocking the lock tongue driving piece from rotating. The defect that the traditional lock body needs to reversely lock the lock core before reverse locking is overcome, and the lock body structure is simpler and the lock body volume is also more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a self-locking reverse-locking lock body of the present invention;

[0015] Figure 2 The internal structure of a self-locking reverse lock body of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 3 The internal structure of a self-locking reverse lock body of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 4 The internal structure of a self-locking reverse lock body of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 5 The internal structure of a self-locking reverse lock body of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 6 It is a structural schematic diagram of a bolt driving member;

[0020] Figure 7 It is a schematic diagram of the exploded view of the bolt drive component.

[0021] Explanation of the accompanying drawings: 1. lock housing; 2. lock tongue; 21. lock tongue slider; 3. lock tongue driving member; 31. lock tongue protrusion; 32. anti-lock recess; 33. lock tongue outer driving plate; lock tongue inner driving plate; 4. anti-lock assembly; 41. blocking swing member; 411. anti-lock column; 42. blocking torsion spring; 43. anti-lock driving plate; 431. abutment portion; 432. rotating slide groove; 433. limiting protrusion; 5. square shaft; 6. anti-lock strip. DETAILED DESCRIPTION

[0022] Refer to the attached Figures 1 to 7A self-locking reverse-locking lock body of the present invention is further described in detail.

[0023] from Figure 1 It can be seen that a self-locking reverse lock body comprises a lock shell 1 and a lock tongue 2. The lock shell 1 is provided with a lock tongue hole for the lock tongue 2 to extend out. The lock tongue 2 can be a magnetic lock tongue 2. When the door is closed, the magnetic lock tongue 2 will extend out of the lock tongue hole under the action of magnetic force to close the door. Figure 2 and Figure 3 It can be seen that a lock tongue driving member 3 matched with the square shaft 5 is provided on the lock housing 1, and a lock tongue protrusion 31 matched with the lock tongue 2 is provided on the lock tongue driving member 3. The handle can drive the lock tongue driving member 3 to rotate through the square shaft 5, and the lock tongue protrusion 31 will drive the lock tongue 2 to retract into the lock housing 1 to unlock. The lock tongue 2 is provided with a lock tongue slider 21 matched with the lock tongue driving member 3, and the lock tongue slider 21 is provided with a buffer rubber block. When the lock tongue 2 drives the lock tongue slider 21 to move, the lock tongue slider 21 touches the limit column on the lock housing 1 through the buffer rubber, which effectively avoids the sound during the movement of the lock tongue 2.

[0024] A counter-locking component 4 for blocking the rotation of the lock tongue driving component 3 is arranged on one side of the lock tongue driving component 3; the counter-locking component 4 includes a blocking swinging component 41, a blocking torsion spring 42 and a counter-locking driving plate 43 matched with the counter-locking strip 6; one end of the blocking swinging component 41 is swingably set on the lock housing 1 through a swinging shaft, and the other end is provided with a counter-locking column 411 adapted to the counter-locking recess 32 of the lock tongue driving component 3; the blocking torsion spring 42 is installed on the swinging shaft and cooperates with the blocking swinging component 41 to push the blocking swinging component 41 to swing toward the lock tongue driving component 3.

[0025] The reverse locking driving piece 43 is provided with abutting portion 431 which abuts against the blocking swinging member 41. The abutting portion 431 extends out of the lock tongue driving member 3 and abuts against the blocking swinging member 41, so that the reverse locking column 411 of the blocking swinging member 41 will not cooperate with the reverse locking recess 32, so that the lock tongue driving member 3 can rotate normally to realize unlocking. Figure 2 and Figure 3 As shown, when the lock body needs to be reversed, it is only necessary to drive the reverse lock driving piece 43 to rotate through the reverse lock bar 6. At this time, the abutment portion 431 will rotate with the reverse lock driving piece 43 and stagger with the blocking swing member 41. After the blocking swing member 41 loses its abutment, the blocking swing member 41 swings toward the lock tongue driving member 3 under the action of the blocking torsion spring 42, so that one end of the blocking swing member 41 is placed in the reverse lock recess 32 of the lock tongue driving member 3, and the rotation of the blocking lock tongue driving member 3 pushes the lock tongue 2 to move, thereby realizing the reverse lock function. Figure 4 and Figure 5As shown, when unlocking is required, it is only necessary to rotate the anti-lock driving plate 43 in the opposite direction so that the abutting portion 431 of the anti-lock driving plate 43 abuts against the blocking swing member 41 again, pushing the blocking swing member 41 to separate from the anti-lock recess 32, and releasing the blocking swing member 41 from blocking the lock tongue driving member 3 from rotating, thereby overcoming the defect that the traditional lock body needs to be anti-locked before the lock core can be anti-locked, making the lock body structure simpler and also making the lock body more compact.

[0026] The anti-locking strip 6 is placed in the center hole of the square shaft 5, and the anti-locking strip 6 rotates in the center hole to drive the anti-locking driving plate 43 to rotate.

[0027] from Figure 6 and Figure 7 It can be seen that the lock tongue driving member 3 includes a lock tongue outer driving piece 33 that cooperates with the outer square shaft 5 and a lock tongue inner driving piece 34 that cooperates with the inner square shaft 5, and the anti-lock driving piece 43 is placed between the lock tongue outer driving piece 33 and the lock tongue inner driving piece 34. The anti-lock bar 6 passes through the inner square shaft 5 to drive the anti-lock driving piece 43 to rotate, so as to drive the abutting part 431 of the anti-lock driving piece 43 to abut or stagger with the blocking swinging piece 41, so as to realize whether the blocking swinging piece 41 blocks the rotation of the lock tongue driving member 3, thereby realizing the anti-locking function. The relative position relationship between the lock tongue driving member 3 and the anti-lock driving piece 43 makes the lock body more compact.

[0028] The outer drive plate 33 of the lock tongue and the inner drive plate 34 of the lock tongue are fixedly connected by a connecting fixed shaft, so that the outer drive plate 33 of the lock tongue and the inner drive plate 34 of the lock tongue can rotate synchronously. The anti-lock drive plate 43 is provided with a rotating slide groove 432 which cooperates with the connecting fixed shaft to avoid interference during the rotation of the anti-lock drive plate 43, and also plays a guiding and limiting role in the rotation of the anti-lock drive plate 43.

[0029] The anti-lock drive plate 43 is also provided with a limiting protrusion 433, and the limiting protrusion 433 will abut against the blocking swing member 41 to block the anti-lock drive plate 43 from continuing to rotate, thereby limiting the rotation of the anti-lock drive plate 43 and preventing the anti-lock drive plate 43 from rotating too much and interfering with and colliding with other components.

[0030] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A self-locking anti-lock lock body, comprising a lock case and a lock tongue. A lock tongue driving member cooperating with a square shaft is provided on the lock case, and a lock tongue protrusion cooperating with the lock tongue is provided on the lock tongue driving member. It is characterized in that: An anti-locking component for blocking the rotation of the bolt driving member is arranged on one side of the bolt driving member; The anti-locking assembly includes a blocking swinging member, a blocking torsion spring, and an anti-locking driving sheet matched with the anti-locking strip; The reverse locking driving piece is provided with abutting part which abuts against the blocking swinging piece, and the abutting part will stagger with the blocking swinging piece as the reverse locking driving piece rotates, so that one end of the blocking swinging piece is placed in the reverse locking recessed part of the lock tongue driving piece under the action of the blocking torsion spring, and the locking tongue driving piece is blocked from rotating to push the lock tongue to move; The lock tongue driving member includes a lock tongue outer driving piece matched with the outer square shaft and a lock tongue inner driving piece matched with the inner square shaft, the anti-lock driving piece is placed between the lock tongue outer driving piece and the lock tongue inner driving piece, and the anti-locking strip passes through the inner square shaft to drive the anti-lock driving piece to rotate; The anti-lock driving piece is also provided with a limiting protrusion, and the limiting protrusion abuts against the blocking swinging member to prevent the anti-lock driving piece from continuing to rotate; One end of the blocking swing member is swingably arranged on the lock housing through a swing shaft, and the other end is provided with an anti-locking column matched with the anti-locking recessed portion; the blocking torsion spring is installed on the swing shaft and matched with the blocking swing member.

2. The self-locking anti-lock lock body according to claim 1, characterized in that: The outer drive plate of the lock tongue is fixedly connected with the inner drive plate of the lock tongue via a connecting fixed shaft, and the reverse locking drive plate is provided with a rotating slide groove matched with the connecting fixed shaft.

3. A self-locking anti-lock lock body according to claim 1 or 2, characterized in that: The lock tongue is provided with a lock tongue slider matched with the lock tongue driving member, and the lock tongue slider is provided with a buffer rubber block. When the lock tongue drives the lock tongue slider to move, the lock tongue slider contacts the limit column on the lock shell through the buffer rubber.

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