CN114278165A - A lock body that can be unlocked quickly - Google Patents

Abstract

The invention discloses a lock body that can be unlocked quickly, comprising a box body, a first lock tongue mechanism and a second lock tongue mechanism built in the box body. The first lock tongue mechanism includes a first lock tongue, a first return spring that drives the first lock tongue to pop out, a first gear assembly that is rotatably connected to the box body, and a lever that is arranged on the first gear assembly and used to drive the first lock tongue to shrink; the The second locking bolt mechanism includes a second locking bolt, a second gear assembly rotatably connected to the box body, and a transmission member, the second gear assembly and the first gear assembly are engaged with each other, and the second gear assembly is provided on There is a swing arm for driving the lifting and lowering of the transmission member, an oblique chute is formed on the second lock tongue, and at the same time, the transmission member is formed with a transmission member protrusion that slides with the oblique chute. The lifting of the piece drives the second lock tongue to expand and contract.

Description

A lock body that can be unlocked quickly

technical field

The invention relates to the technical field of hardware accessories, in particular to a lock body that can be unlocked quickly.

Background technique

At present, in the field of household swing doors, the door leaf is opened and locked by installing hinges, lock bodies, handles, lock cylinders and other accessories on the swing doors. This type of lock body on the market has the following problems: 1. This type of lock body is usually designed with two deadbolts to latch the door leaf, namely the oblique tongue and the square tongue. Usually, the oblique tongue and the square tongue are latched separately, that is, The handle controls the oblique tongue and the lock cylinder controls the square tongue, which requires two-step operation to open the door leaf; 2. This kind of lock body oblique tongue needs to be disassembled before changing the direction, which increases the installation cost; 3. This kind of lock body is in the event of fire. , the lock body needs to be unlocked through the lock cylinder and the handle position, and the lock cannot be unlocked quickly, or the firefighters need to blast the door lock or door leaf, thus missing the best rescue time and causing damage to the user's life and property.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a quick-release lock body with a novel and reliable structure that can realize the quick-release of the double-bolt tongue.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a lock body that can be unlocked quickly, comprising a box body, a first lock bolt mechanism and a second lock bolt mechanism built into the box body, the first lock bolt mechanism The lock tongue mechanism includes a first lock tongue, a first return spring that drives the first lock tongue to pop out, a first gear assembly rotatably connected to the box body, arranged on the first gear assembly and used to drive the first lock tongue. A lever with a lock tongue retracted; the second lock tongue mechanism includes a second lock tongue, a second gear assembly rotatably connected to the box body, and a transmission member, and the second gear assembly and the first gear assembly are mutually The second gear assembly is provided with a swing arm for driving the transmission member to rise and fall, the second lock tongue is formed with an oblique chute, and the transmission member is formed with the oblique chute. The sliding-fit transmission member protrudes, and the transmission member lifts and lowers to drive the second lock tongue to expand and contract.

The beneficial effects of the present invention are: the quick unlockable lock body of the present invention, the first lock tongue and the second lock tongue are interlocked with each other, which can realize synchronous unlocking and locking, which not only improves the safety of the lock body, but also simplifies the The steps of unlocking and locking are more convenient to use. Specifically, since the second gear assembly and the first gear assembly mesh with each other, they can rotate synchronously. When the first gear assembly rotates, the lever can drive the first lock tongue to shrink. When the first gear assembly rotates in the opposite direction , the driving effect of the lever on the first lock tongue disappears, and the first lock tongue pops out under the driving of the first return spring. When the second gear assembly rotates, the swing arm on the second gear assembly drives the transmission member to go up and down. Since the oblique chute on the second lock tongue and the transmission member protrusion are slidingly matched with each other, when the transmission member is raised and lowered, the transmission member can be moved up and down. Two bolts are retractable.

Preferably, it includes a lock cylinder and a lock block, the lock block is slidably connected to the inside of the box body, when the lock block slides to the first point, the lock block prevents the second lock tongue from shrinking, and when the lock block slides to the first point When the lock block slides to the second position, the second lock tongue is freely retractable; the lock cylinder is rotatably connected with a cam, and the cam drives the lock block to move between the first position and the second position. By twisting the lock cylinder, the cam can be driven to rotate so that the lock block moves between the first position and the second position, thereby realizing unlocking and locking.

Preferably, the first gear assembly includes a dial wheel rotatably connected to the box body, a first gear rotatably connected to the dial wheel, and a wheel synchronously rotated with the first gear, and the dial rod is formed in the rotary On the wheel, an arc-shaped limit groove is opened on the dial wheel, and at the same time, the first gear is provided with a first gear protrusion that is slidably matched with the arc-shaped limit groove. The arc-shaped limit slot can limit the relative rotation angle between the first gear and the dial. When the dial rotates within the angular range limited by the arc-shaped limit slot, the first gear will not rotate synchronously, only when the dial rotates When the arc-shaped limiting groove collides with the protrusion of the first gear, the first gear and the dial will rotate synchronously with the dial, and the structure can prevent the lock body from being opened by mistake due to wrong operation to a certain extent.

Preferably, the dial is coaxially connected to the handle through a square shaft.

Preferably, the first lock tongue is formed with a first lock tongue protrusion for the toggle lever to be toggled.

Preferably, the transmission member includes a sliding plate, the transmission member is formed on the sliding plate, and the sliding plate is also formed with a lifting guide groove and a horizontal guide groove, and the box body is formed with all the The elevating guide groove is slidably matched with the box body protrusion, and the swing arm of the second gear assembly is formed with a second gear protrusion slidably matched with the horizontal guide groove. The box body protrusion and the lifting guide groove cooperate with each other to guide the transmission member to rise and fall, and the horizontal guide groove and the second gear protrusion cooperate with each other to guide the transmission member to move horizontally to drive the second lock tongue to expand and contract.

Preferably, the box body is formed with a lock block chute for guiding the sliding of the lock block, and at the same time, the lock block is formed with a lock block protrusion slidingly matched with the lock block chute; A second lock tongue sliding slot for guiding the expansion and contraction of the second locking tongue, and at the same time, a second locking tongue protrusion slidably matched with the second locking tongue sliding groove is formed on the second lock tongue. The lock block can be guided to move between the first position and the second position through the mutual cooperation between the lock block protrusion and the lock block sliding groove. The second lock tongue can be guided to expand and contract by using the second lock tongue protrusion and the second lock tongue sliding groove to cooperate with each other.

Preferably, it also includes a resisting member for resisting the outer periphery of the dial and a second return spring that drives the resisting member. By using the interference action of the contact piece on the outer circumference of the dial, the outer circumference of the dial can be pressed to increase the resistance of the dial to rotate, so as to prevent the natural rotation of the dial from causing wrong unlocking or locking.

Preferably, the first lock tongue is formed with an inclined surface, and the second lock tongue is a square lock tongue.

Preferably, the melting point of the lock block is 100-200°C. In case of fire, the lock block can be melted so that the lock body can be automatically unlocked.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Figure 2 is an exploded view of the present invention.

FIG. 3 is an exploded view of the first deadbolt mechanism of the present invention.

FIG. 4 is an exploded view of the conflict member and the second return spring of the present invention.

FIG. 5 is an exploded view of the second deadbolt mechanism of the present invention.

6 is an exploded view of the lock cylinder and the lock block of the present invention.

FIG. 7 is a rear view of the box body of the present invention.

FIG. 8 is a schematic diagram of the present invention in an open state.

FIG. 9 is a schematic diagram of the present invention in a closed state.

FIG. 10 is a schematic diagram of the present invention in a locked state.

Among them, 1-box body, 11-box body protrusion, 12-lock block chute, 13-second lock tongue chute, 21-first lock tongue, 211-first lock tongue protrusion, 22-first lock tongue Return spring, 23-first gear assembly, 231-lever, 232-wheel, 2321-arc limit groove, 233-first gear, 2331-first gear protrusion, 31-second lock tongue, 311 - Oblique chute, 312-Second lock tongue protrusion, 32-Second gear assembly, 321-Swing arm, 322-Second gear protrusion, 331-Transmission member protrusion, 332-Sliding plate, 3321-Lifting Guide groove, 3322-horizontal guide groove, 4-lock cylinder, 41-cam, 5-lock block, 51-lock block protrusion, 6-square shaft, 7-resistance piece, 71-second return spring.

Detailed ways

The technical solutions claimed by the present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to FIGS. 1 to 10 , a lock body that can be quickly unlocked in this embodiment includes a box body 1 , a first lock bolt mechanism and a second lock bolt mechanism built into the box body 1 , a lock cylinder 4 and Lock block 5.

The first lock tongue mechanism includes a first lock tongue 2, a first return spring 22 that drives the first lock tongue 2 to pop out, a first gear assembly 23 rotatably connected to the box body 1, and a The first gear assembly 23 is mounted on a lever 231 for driving the first lock tongue 2 to retract. In this embodiment, the first lock tongue 2 is formed with a first lock tongue protrusion 211 for the toggle lever 231 to toggle. The first lock tongue 2 is formed with a slope, and the slope can guide the first lock tongue 2 to automatically shrink when the door is closed.

The first gear assembly 23 includes a dial wheel 232 rotatably connected to the box body 1 , a first gear 233 rotatably connected to the dial wheel 232 , and a wheel synchronously rotated with the first gear 233 . The rod 231 is formed on the rotating wheel, the dial wheel 232 is provided with an arc-shaped limiting groove 2321 , and the first gear 233 is provided with a first gear protrusion 2331 slidably matched with the arc-shaped limiting groove 2321 . The dial wheel 232 is coaxially connected to the handle through the square shaft 6 .

The second lock tongue mechanism includes a second lock tongue 31 , a second gear assembly 32 rotatably connected to the box body 1 and a transmission member. The second lock tongue 31 is a square lock tongue, the second gear assembly 32 and the first gear assembly 23 mesh with each other, and the second gear assembly 32 is provided with a swing arm 321 for driving the transmission member to rise and fall, The second lock tongue 31 is formed with an oblique chute 311, and at the same time, the transmission member is formed with a transmission member protrusion 331 that is slidably matched with the inclined sliding groove 311, and the second lock tongue 31 is driven by the lifting and lowering of the transmission member. telescopic. The transmission member includes a sliding plate 332, and the transmission member protrusion 331 is formed on the sliding plate 332. At the same time, the sliding plate 332 is also formed with a lifting guide groove 3321 and a horizontal guide groove 3322. The box body 1 A box body protrusion 11 is formed in the inside which is slidably matched with the lift guide groove 3321 , and a second gear protrusion 322 is formed on the swing arm 321 of the second gear assembly 32 which is slidably matched with the horizontal guide groove 3322 . In this embodiment, the box body 1 is provided with a second lock tongue sliding groove 13 for guiding the expansion and contraction of the second lock tongue 31 , and at the same time, the second lock tongue 31 is formed with the second lock tongue sliding groove 13 . The second lock tongue protrusion 312 that is slidably matched can guide the second lock tongue 31 to expand and contract by the mutual cooperation between the second lock tongue protrusion 312 and the second lock tongue sliding groove 13 .

The lock block 5 is slidably connected to the inside of the box body 1. When the lock block 5 slides to the first point, the lock block 5 prevents the second lock tongue 31 from contracting. The second lock tongue 31 is free to expand and contract at the second position; the lock cylinder 4 is rotatably connected with a cam 41, and the cam 41 drives the lock block 5 to move between the first position and the second position. The box body 1 is formed with a lock block sliding groove 12 for guiding the sliding of the lock block 5, and at the same time, the lock block 5 is formed with a lock block protrusion 51 that is slidably matched with the lock block sliding groove 12. 51 cooperates with the lock block sliding slot 12 to guide the lock block 5 to move between the first position and the second position. In addition, in this embodiment, the melting point of the lock block 5 is 100-200° C., and the lock block 5 can be melted in case of fire so that the lock body is automatically unlocked.

In this embodiment, a resisting member 7 for resisting the outer periphery of the dial wheel 232 and a second restoring spring 71 for driving the resisting member 7 are further included. The second lock tongue 31 can be guided to expand and contract by the cooperation of the second lock tongue protrusion 312 and the second lock tongue sliding groove 13 .

The use of the lock body in this embodiment is as follows: when the lock body is in the unlocked state, the lock block 5 is in the first position, and the lock block 5 does not hinder the sliding of the second lock tongue 31 at this time, and can be operated by twisting the handle The first lock tongue 2 and the second lock tongue 31 are freely retractable. Since the second gear assembly 32 and the first gear assembly 23 are meshed with each other, they can rotate synchronously. When the first gear assembly 23 rotates, the lever 231 can drive the first locking tongue 2 to shrink. When the first gear assembly 23 When reversely rotated, the driving effect of the lever 231 on the first lock tongue 2 disappears, and the first lock tongue 2 pops up under the driving of the first return spring 22 . When the second gear assembly 32 rotates, the swing arm 321 on the second gear assembly 32 drives the transmission member to move up and down. Since the oblique chute 311 on the second lock tongue 31 and the transmission member protrusion 331 are slidingly matched with each other, when the transmission The second locking tongue 31 can be driven to expand and contract when the component is lifted up and down.

When the lock body is in the locked state, the lock block 5 is in the second position under the drive of the cam 41, and the lock block 5 will prevent the second lock tongue 31 from contracting, so that the second lock tongue 31 is kept in the extended state This keeps the door leaf locked.

The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, can make more possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above, or modify it into equivalent embodiments of equivalent changes. . Therefore, without departing from the content of the technical solution of the present invention, the equivalent and equivalent changes made according to the idea of the present invention shall all be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a lock body that can unblank fast which characterized in that: the automatic locking device comprises a box body (1), a first lock tongue mechanism and a second lock tongue mechanism, wherein the first lock tongue mechanism and the second lock tongue mechanism are arranged in the box body (1) in a built-in mode, the first lock tongue mechanism comprises a first lock tongue (2), a first reset spring (22) for driving the first lock tongue (2) to pop up, a first gear assembly (23) rotationally connected into the box body (1), and a shifting lever (231) arranged on the first gear assembly (23) and used for driving the first lock tongue (2) to contract; the second bolt mechanism is including second bolt (31), rotate connect in second gear assembly (32) and driving medium in box body (1), second gear assembly (32) and first gear assembly (23) intermeshing, be provided with on second gear assembly (32) and be used for driving swing arm (321) that the driving medium goes up and down, take shape on second bolt (31) and have slant spout (311), take shape simultaneously on this driving medium have with slant spout (311) sliding fit's driving medium arch (331), go up and down through the driving medium and drive second bolt (31) flexible.

2. A lock body of claim 1 which can be unlocked quickly, wherein: the lock comprises a lock cylinder (4) and a lock block (5), wherein the lock block (5) is connected in the box body (1) in a sliding manner, when the lock block (5) slides to a first position, the lock block (5) blocks the second bolt (31) to contract, and when the lock block (5) slides to a second position, the second bolt (31) freely stretches and retracts; the lock core (4) is rotationally connected with a cam (41), and the cam (41) drives the lock block (5) to move between a first position point and a second position point.

3. A lock body of claim 1 which can be unlocked quickly, wherein: the first gear assembly (23) comprises a shifting wheel (232) rotatably connected in the box body (1), a first gear (233) rotatably connected to the shifting wheel (232) and a rotating wheel synchronously rotating with the first gear (233), the shifting rod (231) is formed on the rotating wheel, an arc-shaped limiting groove (2321) is formed in the shifting wheel (232), and meanwhile, a first gear protrusion (2331) in sliding fit with the arc-shaped limiting groove (2321) is arranged on the first gear (233).

4. A lock body of claim 3, wherein said lock body is adapted to be quickly unlocked: the thumb wheel (232) is coaxially connected with the handle through the square shaft (6).

5. A lock body of claim 1 which can be unlocked quickly, wherein: a first bolt bulge (211) for the shifting rod (231) to shift is formed on the first bolt (2).

6. A lock body of claim 1 which can be unlocked quickly, wherein: the transmission piece comprises a sliding plate (332), the transmission piece protrusion (331) is formed on the sliding plate (332), meanwhile, a lifting guide groove (3321) and a horizontal guide groove (3322) are formed on the sliding plate (332), a box body protrusion (11) in sliding fit with the lifting guide groove (3321) is formed in the box body (1), and a second gear protrusion (322) in sliding fit with the horizontal guide groove (3322) is formed on the swing arm (321) of the second gear assembly (32).

7. A lock body of claim 2, which can be unlocked quickly, characterized in that: a locking piece sliding groove (12) for guiding the locking piece (5) to slide is formed in the box body (1), and a locking piece protrusion (51) in sliding fit with the locking piece sliding groove (12) is formed in the locking piece (5); the box body (1) is provided with a second bolt sliding groove (13) for guiding the second bolt (31) to stretch, and meanwhile, a second bolt protrusion (312) in sliding fit with the second bolt sliding groove (13) is formed on the second bolt (31).

8. A lock body of claim 1 which can be unlocked quickly, wherein: the device also comprises a contact piece (7) used for contacting the periphery of the thumb wheel (232) and a second return spring (71) driving the contact piece (7).

9. A lock body of claim 1 which can be unlocked quickly, wherein: the first bolt (2) is formed with an inclined plane, and the second bolt (31) is a square bolt.

10. A lock body of claim 1 which can be unlocked quickly, wherein: the melting point of the locking block (5) is 100-200 ℃.

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