CN209799624U - Anti-locking mechanism of escape lock body of indoor door - Google Patents

Abstract

The utility model belongs to the technical field of the tool to lock, refer in particular to an indoor door lock body anti-sticking mechanism of fleing. Including the casing to and connect the panel in casing one side, be equipped with the square tongue hole on the panel, be equipped with the square tongue in the casing, square tongue one end is stretched out square tongue hole, the other end are connected with the square tongue plectrum, be equipped with the round pin post in the casing, be connected with on the round pin post and can stretch out or retract the square tongue downthehole around its pivoted maincenter plectrum, the maincenter plectrum with the square tongue plectrum links to each other and drives the square tongue and stretch out or in the square tongue hole, be equipped with the lockhole on the casing, be equipped with the lock core in the lockhole, the thumb wheel on the lock core takes the maincenter plectrum to rotate round. The mechanism can ensure that the normal handle of the lock body can be quickly escaped and opened, and the situation of blocking is avoided.

Description

Anti-locking mechanism of escape lock body of indoor door

Technical Field

The utility model belongs to the technical field of the tool to lock, refer in particular to an indoor door lock body anti-sticking mechanism of fleing.

Background

indoor door generally indicates the door of bedroom room or study entry, the lock body of indoor door has two spring bolts more under the common conditions, latch bolt and square bolt, the square bolt is used for the back lock, to most indoor door, the opening of square bolt or close and accomplish through connecting the lock core on the lock body, and opening or closing of latch bolt is then accomplished by the handle, current indoor door lock body, when the square bolt of lock body is in the open mode, it can be indoor through rotating inside handle with latch bolt and square bolt withdrawal lock body simultaneously, this function use comparatively convenient, need not the rethread and can be with in the lock body is received back to the square bolt to the knob on rotating the lock core, be fit for the less child in age to use, when its unconscious with the door back lock, still the accessible rotates the handle and opens, and can not be stranded in indoor.

However, because the knob on the lock core is not similar to the function that has self return on the handle, when the back locking with the door to rotate the thumb wheel on the lock core to a certain position, the thumb wheel can be in the dead point position, and the motion of centre shifting block can be blocked to the thumb wheel promptly, makes the handle unable the rotation.

Disclosure of Invention

The utility model provides a to above-mentioned problem, provide a thumb wheel that can avoid on the lock core is in the dead point position, the indoor door of the dead maincenter shifting block of card lock body anti-sticking dead mechanism of fleing.

The purpose of the utility model is realized like this:

The utility model provides an indoor door lock body anti-sticking mechanism of fleing, includes the casing to and connect the panel in casing one side, be equipped with square tongue hole on the panel, be equipped with the square tongue in the casing, square tongue one end is stretched out square tongue hole, the other end are connected with the square tongue plectrum, be equipped with the round pin post in the casing, be connected with on the round pin post and can wind its pivoted maincenter shifting block, the maincenter shifting block with square tongue plectrum links to each other and drives the square tongue and stretch out or in the withdrawal square tongue hole, be equipped with the lockhole on the casing, be equipped with the lock core in the lockhole, the thumb wheel on the lock core takes the maincenter shifting block to rotate round the round pin post, be equipped with.

Further, rotate the piece including connecting the rotation end on the tongue plectrum, and with thumb wheel matched with free end rotates and is connected the middle section between end and the free end, the thumb wheel includes the thumb wheel main part to and be located the commentaries on classics post of thumb wheel main part periphery, change the post and have the first contact surface that is located the front end, and be located the second contact surface of first contact surface both sides, the free end is formed with the third contact surface that acts on the second contact surface.

Furthermore, a torsion spring is arranged in the shell, and the torsion spring enables the rotating piece to have a clockwise rotation trend.

Furthermore, a limiting block is arranged on the rotating piece, and when the rotating piece does not rotate, the limiting block abuts against the square tongue poking piece.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

When the thumb wheel on the lock core is located the dead point position, rotate the piece and can bounce the thumb wheel open, make it not keep off on the movement track of maincenter shifting block to avoid the lock body card to die, can't open the door through rotating the handle.

Drawings

Fig. 1 is a schematic view of the internal structure of the lock body.

Fig. 2 is a schematic structural view of the rotating member.

Fig. 3 is a schematic structural diagram of the pivot shifting block.

Fig. 4 is a schematic view of the lock cylinder.

fig. 5 is a schematic view of the thumb wheel not interfering with the rotating member.

Fig. 6 is a schematic view of the thumb wheel after the thumb wheel and the rotating member collide with each other and the thumb wheel is in a dead-center state.

FIG. 7 is a schematic view of the thumb wheel interfering with the rotating member and the thumb wheel being in a dead-center condition.

Fig. 8 is a schematic view of the thumb wheel after the thumb wheel and the rotating member collide with each other and the thumb wheel is out of the dead point state.

1-shell, 11-lock hole, 2-panel, 21-square tongue hole, 3-square tongue, 4-square tongue plectrum, 41-sliding groove, 5-pin column, 6-central shifting block, 61-first trigger end, 62-second trigger end, 63-no interference area, 64-square tongue connecting end, 65-square tongue linkage end, 7-lock core, 71-rotating column, 72-shifting wheel, 711-first contact surface, 712-second contact surface, 8-rotating piece, 81-rotating end, 82-free end, 821-third contact surface, 83-connecting middle section, 84-limiting block, 9-torsion spring, 10-square core and 12-linkage plectrum.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof,

As shown in fig. 1, in the lock body, when the square tongue 3 is ejected out of the square tongue hole 21 through the knob connected to the lock cylinder 7, the door is in a reverse locking state, at this time, the square core 10 is driven to rotate by the handle, the square core 10 drives the linkage shifting piece 12, the linkage shifting piece 12 is contacted with the square tongue linkage end 65 on the central shifting block 6, and the square tongue connection end 65 on the central shifting block 6 is forced to move in the sliding groove 41 on the square tongue shifting block 4, so that the square tongue 3 is retracted into the square tongue hole 21.

In the above-mentioned in-process that drives square tongue 3 and withdraw into square tongue hole 21 through the handle, pivot shifting block 6 plays decisive role, generally speaking, can have two trigger ends on the pivot shifting block 6 and cooperate with the thumb wheel 72 on the lock core 7 in order to reach the purpose of opening or closing the square tongue, because thumb wheel 72 does not have the function of automatic return, therefore be in when square tongue 3 is in the state of popping out square tongue hole 21, thumb wheel 71 is when being in a certain position, can keep off on the motion trail of the first trigger end 711 of pivot shifting block 6, cause pivot shifting block 6 unable rotation, thereby lead to the handle also unable rotation, refer to fig. 6 and 7, this is the dead point position of thumb wheel 72 on the lock core 7.

The technical scheme of the utility model among, through set up rotation piece 8 on square tongue plectrum 4, rotation piece 8 forces thumb wheel 72 on the lock core 7 can not be in the dead point position to reach the rotation process of maincenter shifting block 6 can not be interfered, and then realize that the dead situation of card can not appear in this lock body.

Further, as shown in fig. 2 to 8, the rotating member 8 is substantially in the shape of a fishhook, and has a rotating end 81 connected to the deadbolt shift piece 4, and a free end 82 engaged with the dial 72 on the lock cylinder 7, a connecting middle section 83 is provided between the rotating end 81 and the free end 82, the dial 72 includes a dial body rotatably disposed on the lock cylinder 7, and a rotary column 71 is formed on the periphery of the dial body.

In the state where the square tongue 3 is ejected out of the square tongue hole 21, the thumb wheel 72 on the key cylinder 7, and the relationship between the rotary post 71 and the rotary member 8 are substantially as shown in fig. 5, the rotary post 71 on the thumb wheel 72 is not in contact with the free end 82 of the rotary member 8, the first trigger end 61 on the central thumb block 6 is not interfered and can rotate under the action of the linked thumb piece 12, when the rotary post 71 on the thumb wheel 72 is moved to the position shown in fig. 6, the first contact surface 711 on the rotary post 71 already forms a limit for the first trigger end 61 on the central thumb block 6, and is in the dead point position, and the third contact surface 821 on the free end 82 of the rotary member 8 abuts against the second contact surface 712 on the rotary post 71, so that the rotary post 71 has a tendency to be flicked away from the first trigger end 61 of the central thumb block 6 and no longer forms a limit for the first trigger end 61. In fig. 7, the rotating column 71 is in the position critical to the dead point position, that is, when the rotating column 71 rotates clockwise, the state shown in fig. 8 is assumed, the first contact surface 711 of the rotating column does not limit the first trigger end 61, and the third contact surface 821 on the rotating column 8 abuts against the first contact surface 711 on the rotating column 71, and when the square core 10 is rotated, the linking shift piece 12 can drive the middle shifting block 6 to move.

As shown in fig. 5-8, the housing 1 is provided with a torsion spring 9, the torsion spring 9 can make the rotating component 8 have a tendency of clockwise rotation, one end of the torsion spring 9 is lapped on the connecting middle section 83 of the rotating component 8, and the other end can be fixed on the housing 1, or can be the square tongue pulling piece 4 or the square tongue 3, as long as it can make the rotating component 8 have a tendency of clockwise rotation.

Furthermore, the rotating component 8 is provided with a limit block 84, and the limit block 84 is preferably located at a position connected with the middle section 83, and when the rotating component 8 is not rotated and is not jacked up by the thumb wheel 72, it abuts against the dead bolt dial 4, and mainly plays a role in limiting the rotating stroke of the rotating component 8.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (4)

1. The utility model provides an indoor door lock body anti-sticking mechanism of fleing, includes casing (1) to and connect panel (2) in casing (1) one side, be equipped with square tongue hole (21) on panel (2), be equipped with square tongue (3) in casing (1), square tongue (3) one end is stretched out square tongue hole (21), the other end is connected with square tongue plectrum (4), be equipped with round pin post (5) in casing (1), be connected with on round pin post (5) and wind its pivoted maincenter plectrum (6), maincenter plectrum (6) with square tongue plectrum (4) link to each other and drive square tongue (3) stretch out or in withdrawal square tongue hole (21), be equipped with on casing (1) and shift piece (11), be equipped with lock core (7) in lockhole (11), pivot plectrum (72) on lock core (7) are taken place and are shifted piece (6) and are rotated round pin post (5), its characterized in that be equipped with on square tongue plectrum (4) and prevent that rotation piece (8) that dead pivot plectrum (72) block.

2. An indoor door escape lock body anti-locking mechanism as claimed in claim 1, wherein the rotating member (8) comprises a rotating end (81) connected to the dead bolt shifting piece (4) and a free end (82) matched with the shifting wheel (72), a connecting middle section (83) is arranged between the rotating end (81) and the free end (82), the shifting wheel (72) comprises a shifting wheel main body and a rotating column (71) arranged on the periphery of the shifting wheel main body, the rotating column (71) is provided with a first contact surface (711) arranged at the front end and second contact surfaces (712) arranged at two sides of the first contact surface (711), and the free end (82) is provided with a third contact surface (821) acting on the second contact surface (712).

3. An indoor door escape lock body anti-jamming mechanism according to claim 2, characterized in that a torsion spring (9) is provided in the housing (1), and the torsion spring (9) causes the rotating member (8) to have a tendency to rotate clockwise.

4. the anti-locking mechanism of an indoor door escape lock body according to claim 3, wherein the rotating member (8) is provided with a limiting block (84), and when the rotating member (8) does not rotate, the limiting block (84) abuts against the dead bolt shifting piece (4).