An idling reverse-locking lock body

Abstract

The present invention discloses an idling anti-lock lock body, which includes a lock case and a lock tongue. A lock tongue driving piece cooperating with the lock tongue is arranged on the lock case, and a rotary driving piece cooperating with a square shaft is further arranged on the lock case; a linkage rod and a linkage torsion spring are arranged on the rotary driving piece. The linkage torsion spring can press the linkage rod to cooperate with a linkage recess of the lock tongue driving piece, so that the rotary driving piece can push the lock tongue driving piece to rotate through the linkage rod; an anti-lock driving piece cooperating with an anti-lock bar is further arranged on the rotary driving piece. The anti-lock driving piece can rotate relative to the rotary driving piece, and it pushes the linkage rod to separate from the linkage recess through a convex portion. At this time, the rotary driving piece cannot push the lock tongue driving piece to rotate through the linkage rod, realizing the anti-lock function. The structure of this lock body is simpler and the volume is more compact.

Description

Technical Field

[0001] The present invention relates to the field of door locks, and more specifically, it relates to an idling 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 inclined lock tongue and a square lock tongue to achieve the effects of opening and closing and insurance anti-lock respectively. Therefore, components that are respectively linked to the inclined lock tongue and the square lock tongue need to be provided, 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, Chinese Patent No. 201820154552.1 discloses a single-tongue lock body, including a lock case. The lock case includes a panel assembly, a bottom plate assembly and a cover plate assembly. An inclined tongue assembly is provided in the lock case. The inclined 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 in 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 slider switching 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 drives the slider to move in the direction away from the insurance state position when the slider is in the non-insurance state position. The linkage assembly is driven by the slider when the slider continues to displace to drive the lock tongue to retract into the lock case. 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 in 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 an idling 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] An idling anti-lock lock body, comprising a lock shell and a lock tongue, wherein a lock tongue driving piece cooperating with the lock tongue is arranged on the lock shell, and a rotary driving piece cooperating with a square shaft is further arranged on the lock shell; a linkage rod and a linkage torsion spring are arranged on the rotary driving piece, and the linkage torsion spring can press the linkage rod to cooperate with a linkage concave part of the lock tongue driving piece, so that the rotary driving piece can push the lock tongue driving piece to rotate together through the linkage rod; an anti-lock driving piece cooperating with an anti-lock bar is further arranged on the rotary driving piece, and the anti-lock driving piece can rotate relative to the rotary driving piece, and it pushes the linkage rod to separate from the linkage concave part through a convex part.

[0008] The present invention is further provided that: the rotary driving piece is provided with an anti-lock guiding groove, one end of the linkage rod is placed in the anti-lock guiding groove, and the other end is matched with the linkage concave part, and the convex part pushes the linkage rod to move in the anti-lock guiding groove to separate from the linkage concave part.

[0009] The present invention is further provided that: the rotary driving piece comprises an outer driving piece cooperating with an outer square bar and an inner driving piece cooperating with an inner square bar, the anti-lock driving piece is placed between the outer driving piece and the inner driving piece, and the anti-lock bar passes through the inner square bar to drive the anti-lock driving piece to rotate.

[0010] The present invention is further provided that: the outer driving piece and the inner driving piece are fixedly connected through a connecting fixed shaft, and the anti-lock driving piece is provided with a rotary sliding groove cooperating with the connecting fixed shaft.

[0011] The present invention is further provided that: an installation column for installing the linkage torsion spring is arranged on the lock shell, one torsion spring of the linkage torsion spring abuts against the lock shell, and the other end abuts against the linkage rod.

[0012] The present invention is further provided that: the lock tongue is provided with a lock tongue sliding block cooperating with a lock tongue driving part, the lock tongue sliding block is provided with a buffer rubber block, and during the process of the lock tongue driving the lock tongue sliding block to move, the lock tongue sliding block touches a limit column on the lock shell through the buffer rubber.

[0013] The present invention is further provided that: a reset tension spring for driving the lock tongue driving piece to reset is further arranged on the lock shell.

[0014] Advantages of the present invention: When the lock body needs to be anti-locked, only the anti-lock bar needs to drive the anti-lock driving piece to rotate. The anti-lock driving piece pushes the linkage rod outward through the convex part to compress the linkage torsion spring, so that the linkage rod is separated from the linkage concave part. At this time, the rotary driving piece cannot drive the lock tongue driving piece to rotate through the linkage rod, so that the square shaft can drive the rotary driving piece to rotate idly, realizing the anti-lock function. When unlocking is needed, only the anti-lock driving piece needs to rotate in the reverse direction, so that the convex part of the anti-lock driving piece is staggered from the linkage rod, so that the linkage rod is re-fitted with the linkage concave part under the action of the linkage torsion spring, so that the rotary driving piece can drive the lock tongue driving piece to rotate again to realize unlocking, overcoming the defect that the traditional lock body needs to anti-lock the lock core to be anti-locked, making the structure of the lock body simpler and the volume of the lock body more compact at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an idle-rotating anti-lock lock body of the present invention;

[0016] Figure 2 is a schematic internal structure diagram of an idle-rotating anti-lock lock body of the present invention Figure 1 ;

[0017] Figure 3 is a schematic diagram of the internal structure of an idle-rotating anti-lock lock body of the present invention in the normal state;

[0018] Figure 4 is a schematic diagram of the anti-lock state part structure of an idle-rotating anti-lock lock body of the present invention;

[0019] Figure 5 is a schematic assembly structure diagram of a lock tongue driving piece, a rotary driving piece and a linkage rod;

[0020] Figure 6 is an exploded view of a lock tongue driving piece, a rotary driving piece and a linkage rod.

[0021] Description of reference numerals: 1, lock housing; 2, lock tongue; 21, lock tongue slider; 3, lock tongue driving piece; 31, lock tongue protrusion; 32, linkage concave part; 4, return tension spring; 5, rotary driving piece; 51, outer driving piece; 52, inner driving piece; 6, linkage rod; 7, linkage torsion spring; 8, anti-lock driving piece; 81, convex part; 82, rotary chute; 9, anti-lock guiding groove; 10, square shaft; 20, anti-lock bar. DETAILED DESCRIPTION OF THE INVENTION

[0022] Refer to the attached Figures 1 to 6 A further detailed description is given of an idle-rotating anti-lock lock body of the present invention.

[0023] An idle-rotating anti-lock lock body, from Figure 1It can be known that it includes a lock housing 1 and a lock tongue 2. The lock housing 1 is provided with a lock tongue hole for the lock tongue 2 to protrude. The lock tongue 2 can be a magnetic lock tongue 2. When closing the door, the magnetic lock tongue 2 will protrude from the lock tongue hole under the action of magnetic force to close the door. From Figure 2 It can be known that a lock tongue driving piece 3 is arranged on the lock housing 1. The lock tongue driving piece 3 is provided with a lock tongue protrusion 31 that cooperates with the lock tongue 2. The lock tongue driving piece 3 can drive the lock tongue 2 to retract into the lock housing 1 through the lock tongue protrusion 31 to unlock. In order to enable the lock tongue driving piece 3 to reset in time after unlocking, a reset tension spring 4 for driving the lock tongue driving piece 3 to reset is also arranged on the lock housing 1. The lock tongue 2 is provided with a lock tongue slider 21 that cooperates with the lock tongue driving member 3. The lock tongue slider 21 is provided with a buffer rubber block. During the process of the lock tongue 2 driving the lock tongue slider 21 to move, the lock tongue slider 21 touches the limit post on the lock housing 1 through the buffer rubber, effectively avoiding making a sound during the movement of the lock tongue 2.

[0024] From Figure 3 It can be known that a rotary driving member 5 that cooperates with the square shaft 10 is also arranged on the lock housing 1. The handle can drive the rotary driving member 5 to rotate on the lock housing 1 through the square shaft 10. A linkage rod 6 and a linkage torsion spring 7 are arranged on the rotary driving member 5. An installation post for installing the linkage torsion spring 7 is arranged on the lock housing 1. One torsion spring of the linkage torsion spring 7 abuts against the lock housing 1, and the other end abuts against the linkage rod 6. The linkage torsion spring 7 can press the linkage rod 6 to cooperate with the linkage recess 32 of the lock tongue driving piece 3, so that the rotary driving member 5 can push the lock tongue driving piece 3 to rotate together through the linkage rod 6.

[0025] An anti-lock driving piece 8 that cooperates with the anti-lock bar 20 is also arranged on the rotary driving member 5. The anti-lock knob drives the anti-lock driving piece 8 to rotate relative to the rotary driving member 5 through the anti-lock bar 20, so that the anti-lock driving piece 8 can push the linkage rod 6 to separate from the linkage recess 32 through the protrusion 81 as Figure 4 shown, so that the rotary driving member 5 cannot push the lock tongue driving piece 3 to rotate to unlock through the linkage rod 6, thereby realizing the anti-lock function.

[0026] The rotary driving member 5 is provided with an anti-lock guiding groove 9. One end of the linkage rod 6 is placed in the anti-lock guiding groove 9, and the other end cooperates with the linkage recess 32. The protrusion 81 pushes the linkage rod 6 to move in the anti-lock guiding groove 9 to separate from the linkage recess 32. The anti-lock guiding groove 9 plays a guiding role in the movement of the linkage rod 6, so that the linkage rod 6 can accurately cooperate with or separate from the linkage recess 32.

[0027] The anti-lock bar 20 is placed in the central hole of the square shaft 10 and rotates in the central hole to drive the anti-lock driving piece 8 to rotate relative to the rotary driving member 5.

[0028] When the lock body needs to be reversed, it only needs to drive the reverse lock drive plate 8 to rotate through the reverse lock bar 20. The reverse lock drive plate 8 pushes the linkage rod 6 to move outwards through the protrusion 81 to compress the linkage torsion spring 7, so that the linkage rod 6 is separated from the linkage recess 32. At this time, the rotation drive member 5 cannot push the lock tongue drive plate 3 to rotate through the linkage rod 6, so that the square shaft 10 can drive the rotation drive member 5 to idle, thereby realizing the reverse locking function. When unlocking is needed, it only needs to rotate the reverse lock drive plate 8 in the opposite direction, so that the protrusion 81 of the reverse lock drive plate 8 is staggered with the linkage rod 6, so that the linkage rod 6 is matched with the linkage recess 32 again under the action of the linkage torsion spring 7, so that the rotation drive member 5 can push the lock tongue drive plate 3 to rotate through the linkage rod 6 to realize unlocking, thereby overcoming the defect that the traditional lock body needs to reversely lock the lock core to reversely lock, making the lock body structure simpler, and also making the lock body volume more compact.

[0029] from Figure 5 and Figure 6 It can be seen that the rotating drive member 5 includes an outer drive plate 51 that cooperates with the outer square bar and an inner drive plate 52 that cooperates with the inner square bar. The anti-lock drive plate 8 is placed between the outer drive plate 51 and the inner drive plate 52. The anti-lock bar 20 passes through the inner square bar to drive the anti-lock drive plate 8 to rotate, so as to drive the raised portion 81 of the anti-lock drive plate 8 to abut against or stagger with the blocking swinging member, thereby realizing whether the linkage rod 6 cooperates with the linkage recess 32, thereby realizing the anti-lock function. The relative positional relationship between the lock tongue drive member 5 and the anti-lock drive plate 8 makes the lock body more compact.

[0030] The outer drive plate 51 and the inner drive plate 52 are fixedly connected by a connecting fixed shaft, so that the outer drive plate 51 and the inner drive plate 52 can rotate synchronously. The anti-locking drive plate 8 is provided with a rotating slide groove 82 which cooperates with the connecting fixed shaft to avoid interference during the rotation of the anti-locking drive plate 8, and also plays a guiding and limiting role in the rotation of the anti-locking drive plate 8.

[0031] 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. An idling reverse lock body, comprising a lock housing and a lock tongue, wherein a lock tongue driving piece cooperating with the lock tongue is arranged on the lock housing, and a rotary driving piece cooperating with a square shaft is further arranged on the lock housing; It is characterized in that: A linkage rod and a linkage torsion spring are provided on the rotary driving member. The linkage torsion spring can press the linkage rod to cooperate with the linkage recess of the lock tongue driving piece, so that the rotary driving member can push the lock tongue driving piece to rotate together through the linkage rod. An anti-lock driving piece cooperating with the anti-lock bar is further provided on the rotary driving member. The anti-lock driving piece can rotate relative to the rotary driving member, and it pushes the linkage rod to separate from the linkage recess through a protruding portion. The rotary driving member includes an outer driving piece cooperating with the outer square bar and an inner driving piece cooperating with the inner square bar. The anti-lock driving piece is disposed between the outer driving piece and the inner driving piece. The anti-lock bar passes through the inner square bar to drive the anti-lock driving piece to rotate. An installation post for installing the linkage torsion spring is provided on the lock housing. One torsion spring of the linkage torsion spring abuts against the lock housing, and the other end abuts against the linkage rod.

2. The idling reverse lock body according to claim 1, characterized in that: The rotary driving member is provided with an anti-lock guiding groove. One end of the linkage rod is disposed in the anti-lock guiding groove, and the other end cooperates with the linkage recess. The protruding portion pushes the linkage rod to move in the anti-lock guiding groove to separate from the linkage recess.

3. The idling reverse lock body according to claim 1, characterized in that: The outer driving piece and the inner driving piece are fixedly connected through a connecting fixed shaft. The anti-lock driving piece is provided with a rotary sliding groove cooperating with the connecting fixed shaft.

4. The idling reverse lock body according to claim 1, characterized in 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 movement of the lock tongue driving the lock tongue slider, the lock tongue slider touches the limit post on the lock housing through the buffer rubber.

5. The idling reverse lock body according to claim 1, characterized in that: A return tension spring for driving the lock tongue driving piece to reset is further provided on the lock housing.

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