CN111734220B

CN111734220B - Bolt assembly for lock mechanism

Info

Publication number: CN111734220B
Application number: CN202010756065.4A
Authority: CN
Inventors: 刘国华; 文剑; 黄颖仪
Original assignee: GUANGDONG JANES LOCK CO Ltd
Current assignee: GUANGDONG JANES LOCK CO Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-10-15
Anticipated expiration: 2040-07-30
Also published as: CN111734220A

Abstract

The invention provides a bolt assembly for a lock tongue mechanism, which comprises a bolt piece, a safety tongue, a fixed block, a first spring and a second spring, wherein the bolt piece and the safety tongue are arranged oppositely, the opposite direction of the bolt piece and the safety tongue is a first direction, the bottom of the bolt piece is abutted against the first spring, a driving part of the bolt piece protrudes into an accommodating area of the fixed block along the first direction, the safety tongue penetrates through the second spring, one end of the second spring is abutted against a first positioning plate of the safety tongue, the other end of the second spring is abutted against the fixed block, a second positioning plate of the safety tongue is arranged at the outer side of the accommodating area, and the second positioning plate is abutted against a limiting column of a cover body of the lock tongue mechanism. When the door is closed, the safety tongue touches the buckle plate of the door lock and retracts, the bolt piece automatically extends immediately, and a user does not need to hold and rotate the door handle by hands, so that the door lock is convenient to use.

Description

Bolt assembly for lock mechanism

Technical Field

The invention belongs to the technical field of locks, and particularly relates to a spring bolt assembly for a lock mechanism.

Background

Currently, a tongue is arranged in a locking mechanism of a sliding door lock to clamp a door frame. However, when the locking mechanism in the commercially available sliding door lock is closed, the tongue is only controlled by the door handle to extend and retract, and cannot be automatically extended after the door is closed, which causes inconvenience in use.

Disclosure of Invention

The invention mainly aims to provide a bolt assembly for a locking mechanism, which is convenient to use.

In order to achieve the above-mentioned main object, the latch bolt assembly for an unlocking mechanism provided by the present invention includes a latch bolt member, a safety bolt, a fixing block, a first spring and a second spring, wherein the latch bolt member and the safety bolt are arranged oppositely, the opposite direction of the latch bolt member and the safety bolt is a first direction, the bottom of the latch bolt member abuts against the first spring, a driving portion of the latch bolt member protrudes into an accommodating area of the fixing block along the first direction, the safety bolt passes through the second spring, one end of the second spring abuts against a first positioning plate of the safety bolt, the other end of the second spring abuts against the fixing block, the second positioning plate of the safety bolt is arranged outside the accommodating area, and the second positioning plate abuts against a limiting column of a cover body of the unlocking mechanism.

According to the scheme, when the door is closed, the safety tongue touches the buckle plate of the door lock and retracts, the bolt piece automatically extends immediately, and a user does not need to hold and rotate the door handle by hands, so that the door lock is convenient to use.

Preferably, the locking tongue is a U-shaped element.

Furthermore, the spring bolt piece includes lock tongue portion, first portion and second portion, and first portion and second portion are connected to the lock tongue portion, and the first terminal surface of first portion auto-lock tongue piece is towards the spring bolt piece indent, and the second terminal surface of second portion auto-lock tongue piece is towards the spring bolt piece indent, and first terminal surface and second terminal surface are arranged relatively, and the bottom surface butt of first portion is in first spring.

Furthermore, the spring bolt piece has arranged the arch mouth between first portion and second portion, and the spring bolt thumb wheel of spring bolt subassembly is rotationally protruded into in the arch mouth, and the terminal surface of second portion is provided with the portion of dialling that extends from it towards the second terminal surface.

Furthermore, a positioning column part is arranged between the first positioning plate and the second positioning plate of the safety tongue, the first positioning plate is arranged between the positioning column part and the tongue column part of the safety tongue, and the positioning column part penetrates through the second spring.

Preferably, the first spring and the second spring are both coil springs.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.

Fig. 1 is an exploded view of an embodiment of a locking mechanism employing a latch bolt assembly according to the present invention.

Fig. 2 is a block diagram of a strike member of an embodiment of a strike assembly of the invention.

Fig. 3 is a block diagram of a safety tongue of an embodiment of a latch bolt assembly of the present invention.

Fig. 4 is a block diagram of a switch plate of an embodiment of a locking mechanism employing a latch assembly of the present invention.

Fig. 5 is a block diagram of a toggle member of an embodiment of a locking mechanism employing a deadbolt assembly of the present invention.

Fig. 6 is a sectional view of a lock mechanism of an embodiment of a deadbolt assembly according to the present invention, with the lock cylinder in a closed position.

Fig. 7 is a structural sectional view of an embodiment of a locking mechanism using a deadbolt assembly of the present invention, with the locking mechanism in a locked state via a toggle member.

Fig. 8 is a cross-sectional view of an embodiment of a locking mechanism utilizing a locking bolt assembly of the present invention in an unlocked position.

Fig. 9 is a sectional view of the latch mechanism of the latch bolt assembly of the present invention when applied to a buckle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the latch bolt assembly provided in this embodiment is applied to a locking mechanism 100, the locking mechanism 100 includes a cover body, a latch bolt assembly and a transmission assembly, both the latch bolt assembly and the transmission assembly are assembled on the cover body, the latch bolt assembly includes a latch bolt member 1 and a safety bolt 2, the safety lock comprises a fixed block 3, a first spring 4 and a second spring 5, a lock tongue piece 1 and a safety tongue 2 are arranged oppositely, the opposite direction of the lock tongue piece 1 and the safety tongue 2 is a first direction, the bottom of the lock tongue piece 1 is abutted to the first spring 4, a driving part 6 of the lock tongue piece 1 protrudes into an accommodating area 7 of the fixed block 3 along the first direction, the safety tongue 2 penetrates through the second spring 5, one end of the second spring 5 is abutted to a first positioning plate 8 of the safety tongue 2, the other end of the second spring 5 is abutted to the fixed block 3, a second positioning plate 9 of the safety tongue 2 is arranged on the outer side of the accommodating area 7, and the second positioning plate 9 is abutted to a limiting column 10 of a cover body.

The transmission assembly comprises a lock cylinder 11, a switch plate 12, a safety block 13, a toggle piece 14 and a third spring 15, a toggle wheel 38 of the lock cylinder 11 is arranged opposite to the switch plate 12, the toggle piece 14 is movably connected to a safety block, the lock cylinder 11 and the toggle piece 14 are both positioned on the same side of the switch plate 12, and the third spring 15 is abutted against the switch plate 12. The cover body comprises a first cover body 16 and a second cover body 17 which are connected with each other through screws, the switch piece 12 and the toggle piece 14 are assembled in the cover body, and the lock core 11 is clamped between the first cover body 16 and the second cover body 17. The first spring 4, the second spring 5 and the third spring 15 are all helical springs, the helical axes of the first spring 4, the second spring 5 and the third spring 15 are parallel to each other, and the first direction is perpendicular to the helical axes of the first spring 4, the second spring 5 and the third spring 15.

Referring to fig. 1 and 2, the locking bolt 1 is a u-shaped element, the locking bolt 1 includes a locking bolt 18, a first portion 19 and a second portion 20, the locking bolt 18 connects the first portion 19 and the second portion 20, the first portion 19 is recessed from a first end surface of the locking bolt 1 toward the locking bolt 1 to form a positioning opening 37, the second portion 20 is recessed from a second end surface of the locking bolt 1 toward the locking bolt 1, the first end surface and the second end surface are arranged opposite to each other, a bottom surface of the first portion 19 abuts against the first spring 4, and the driving portion 6 is located at the second portion 20.

The bolt piece 1 is arranged with an arch mouth 21 between the first part 19 and the second part 20, a bolt thumb wheel 22 of the bolt component can rotationally protrude into the arch mouth 21, the end surface of the second part 20 is provided with a poked part 23 extending from the end surface to the second end surface, and the door handle is assembled on the bolt thumb wheel 22.

Referring to fig. 1 and 3, the safety tongue 2 is provided with a positioning column portion 24 between the first positioning plate 8 and the second positioning plate 9, the first positioning plate 8 is disposed between the positioning column portion 24 and a tongue column portion 25 of the safety tongue 2, and the positioning column portion 24 passes through the second spring 5.

Referring to fig. 1 and 4, the transmission assembly includes a positioning member 26, the positioning member 26 is disposed in the cover, a rotating column 27 of the switch plate 12 is rotatably clamped between the positioning member 26 and the first cover 16 of the cover, the rotating column 27 is a hollow cylinder, and the first direction and the spiral axes of the first spring 4, the second spring 5 and the third spring 15 are all perpendicular to the rotation axis of the rotating column 27.

The positioning cylinder 28 of the switch plate 12 penetrates the third spring 15, the rotation axis of the positioning cylinder is parallel to the spiral axis of the third spring 15, the first projection 29 of the switch plate 12 projects towards the dial relative to the positioning cylinder 28, and the second projection 30 of the switch plate 12 projects towards the dial 14 relative to the positioning cylinder 28.

Referring to fig. 1 and 5, the outer wall of the wheel body 31 of the toggle member 14 is provided with a toggle protrusion 32, the driving stud 33 of the toggle member 14 is inserted into the waist-shaped hole 34 of the safety block 13, the driving stud 33 is connected to the wheel body 31 through the arc arm 35 of the toggle member 14, the wheel body 31 is a hollow cylinder, and a wrench is assembled on the toggle member 14.

The first protrusion 29, the second protrusion 30 and the toggle protrusion 32 are all arc protrusions. In the present embodiment, the first protrusion 29 and the toggle protrusion 32 are respectively a circular arc protrusion, and the second protrusion 30 includes three circular arc protrusions.

Referring to fig. 1 to 6, the door body equipped with the locking mechanism 100 is in a closed state, the locking mechanism 100 is in a locked state, during the locking process of the locking mechanism 100, the lock tongue 18 passes through the buckle plate 36, the tongue column 25 abuts against the buckle plate 36, the thumb wheel 38 of the lock cylinder 11 is driven by the key to rotate to abut against the first protrusion 29 and rotate the switch plate 12 by acting on the first protrusion 29 of the switch plate 12, the second protrusion 30 acts on the toggle protrusion 32 of the toggle piece 14, the toggle piece 14 rotates and drives the safety block 13 to move by the driving column 33 inserted into the kidney-shaped hole 34 of the safety block 13, the safety block 13 enters the positioning hole 37 and abuts against the lock tongue 1 to be fixed, so that the locking mechanism 100 is in the locked state, and therefore, the user can make the safety block 13 leave the positioning hole 37 by the thumb wheel 38 of the lock cylinder 11, thereby releasing locking mechanism 100 from the locked state.

Referring to fig. 1 to 5 and 7, a user directly rotates a wrench equipped with a toggle piece 14 indoors, the wrench drives the toggle piece 14, the toggle piece 14 drives the safety block 13 to move through a driving post 33 inserted into a kidney-shaped hole 34 of the safety block 13, the safety block 13 enters a positioning opening 37 and abuts against the bolt piece 1 to be fixed, thereby, the locking mechanism 100 is in a locked state, and therefore, when a user does not carry a key or needs to take the key from a pocket, a capsule, or the like, the user can drive the toggle piece 14 directly through the handle of the door lock to make the locking mechanism 100 in the locking state, and does not need to drive the thumb wheel 38 of the lock core 11 through the key to make the locking mechanism 100 in the locking state, thereby improving the use convenience, in this way, the user can release the lock mechanism 100 by moving the toggle 14 by the user's hand to move the safety block 13 away from the positioning hole 37.

Referring to fig. 1 to 5 and 8, when the locking mechanism 100 is unlocked and in an unlocked state, the safety block 13 leaves the positioning opening 37 and no longer abuts against the bolt piece 1, the user can rotate the door handle assembled with the bolt dial 22, the bolt dial 22 abuts against the dialed part 23 and drives the bolt piece 1 to retract along the spiral axis of the first spring 4 along with the rotation of the door handle, the inclined surface 38 of the driving part 6 abuts against the second positioning plate 9 and drives the safety bolt 2 to retract along the spiral axis of the second spring 5, the second positioning plate 9 abuts against the arc surface of the spacing column 10 while retracting, the second positioning plate 9 swings under the action of the arc surface of the spacing column 10 and gradually moves away from the driving part 6 along with the retraction of the safety bolt 2, when the second positioning plate 9 disengages from the driving part 6, the safety bolt 2 extends under the action of the second spring 5, and the user stops applying force to the door handle, since the latch member 1 is extended by the first spring 4 and the horizontal surface of the driving portion 6 abuts against the second positioning plate 9, the extended length of the latch portion 18 is reduced relative to the extended length when the latch mechanism 100 is in the locked state by the second positioning plate 9, and the latch portion 18 is partially extended.

When a user closes the door body, as shown in fig. 9, the safety tongue 2 is pressed against the buckle 36 and retracts under the action of the buckle, the second positioning plate 9 swings under the action of the arc surface of the limiting column 10 and gradually moves away from the driving part 6 along with the retraction of the safety tongue 2, after the second positioning plate 9 is separated from the driving part 6, the bolt piece 1 completely and automatically extends out under the action of the first spring 4 and penetrates through the buckle 36, the locking mechanism 100 has a collision closing function of automatically extending out the bolt piece 1 by touching the buckle 36, and the user can then drive the toggle piece 14 through the lock cylinder 11 or directly by twisting to enable the locking mechanism 100 to enter a locking state.

Therefore, the bolt member 1 retracts inward under the action of the door handle, the driving portion 6 penetrates through the accommodating area 7 and abuts against the second positioning plate 9 along with the movement of the bolt member 1, the safety bolt 2 is driven to retract inward through the second positioning plate, the second spring 5 deforms, the safety bolt 2 is positioned under the action of the limiting column 10, the driving portion 6 disengages from the second positioning plate 9 along with the movement of the bolt member 1, the safety bolt 2 returns to the initial position under the action of the second spring 5, the door handle is released, the bolt member 1 moves outward under the action of the first spring 4, the driving portion 6 abuts against the second positioning plate 9, the extension length of the bolt portion 18 is reduced relative to the extension length when the locking mechanism 100 is in a locking state, and the bolt portion 18 extends locally.

When the door is closed, the safety tongue 2 touches the buckle plate of the door lock and retracts, the bolt piece 1 extends automatically immediately, a user does not need to hold and rotate the door handle by hands, the user can drive the toggle piece 14 through the twisting hand of the door lock indoors, the toggle piece 14 immediately drives the switch piece 12 to release the locking state, and therefore the door lock is convenient to use.

Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lock tongue component for a lock tongue mechanism is characterized in that,

the lock tongue component comprises a lock tongue piece, a safety tongue, a fixed block, a first spring and a second spring, the lock tongue piece and the safety tongue are oppositely arranged, the relative direction of the lock tongue piece and the safety tongue is a first direction,

the bottom of the bolt piece is abutted against the first spring, the driving part of the bolt piece protrudes into the accommodating area of the fixed block along the first direction,

the safety tongue penetrates through the second spring, one end of the second spring abuts against a first positioning plate of the safety tongue, the other end of the second spring abuts against the fixing block, a second positioning plate of the safety tongue is arranged on the outer side of the accommodating area, and the second positioning plate abuts against a limiting column of a cover body of the lock mechanism;

when the door body is opened, the inclined surface of the driving part abuts against the second positioning plate and drives the safety tongue to retract inwards, after the second positioning plate is separated from the driving part under the action of the limiting column, the horizontal surface of the driving part abuts against the second positioning plate, and the extending length of the lock tongue part is reduced relative to the extending length of the lock tongue part when the lock sharp mechanism is in a locking state;

when the door body is closed, the safety bolt retracts under the action of the pinch plate, and after the second positioning plate is separated from the driving part under the action of the limiting column, the bolt piece extends outwards completely and penetrates through the pinch plate.

2. The latch bolt assembly of claim 1, wherein:

the lock tongue piece is a U-shaped piece.

3. The latch bolt assembly of claim 2, wherein:

the lock bolt piece includes lock tongue portion, first portion and second portion, lock tongue portion connects first portion with the second portion.

4. The latch bolt assembly of claim 3, wherein:

the first portion from the first terminal surface of lock tongue spare toward the spring bolt spare indent, the second portion from the second terminal surface of lock tongue spare toward the spring bolt spare indent, first terminal surface with the second terminal surface opposite arrangement.

5. The latch bolt assembly of claim 4, wherein:

the bottom surface of the first portion abuts against the first spring.

6. The latch bolt assembly of claim 5, wherein:

the bolt piece is arranged with an arch mouth between the first portion and the second portion, and a bolt thumb wheel of the bolt assembly can rotationally protrude into the arch mouth.

7. The latch bolt assembly of claim 6, wherein:

the end face of the second portion is provided with a poked portion extending from the second portion to the second end face.

8. The latch bolt assembly of claim 7, wherein:

the safety tongue is provided with a positioning column part between the first positioning plate and the second positioning plate, and the first positioning plate is arranged between the positioning column part and the tongue column part of the safety tongue.

9. The latch bolt assembly of claim 8, wherein:

the post portion passes through the second spring.

10. A latch bolt assembly according to any one of claims 1 to 9, wherein:

the first spring and the second spring are both coil springs.