CN220469620U - Simple fireproof lock - Google Patents
Simple fireproof lock Download PDFInfo
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- CN220469620U CN220469620U CN202321921752.2U CN202321921752U CN220469620U CN 220469620 U CN220469620 U CN 220469620U CN 202321921752 U CN202321921752 U CN 202321921752U CN 220469620 U CN220469620 U CN 220469620U
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- lock
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- bolt
- inclined tongue
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- 238000007906 compression Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a simple fireproof lock, which comprises a lock shell, wherein a bevel tongue and a back-locking lock tongue are slidably arranged in the lock shell; the anti-lock bolt comprises a bolt slide plate, an upper bolt plate and a lower bolt plate which are arranged at the front end part of the bolt slide plate at intervals, and the bolt slide plate drives the upper bolt plate and the lower bolt plate to synchronously stretch out and draw back inside and outside a lock shell; the inclined tongue comprises an inclined tongue slide plate arranged below the lock tongue slide plate in a sliding manner and an inclined tongue connected to the front end part of the inclined tongue slide plate, and the inclined tongue is arranged between the upper lock tongue plate and the lower lock tongue plate and stretches out and draws back inside a lock shell under the drive of the lock tongue slide plate; the inclined tongue sliding plate and the lock tongue sliding plate are mutually overlapped, and the inclined tongue is arranged between the upper lock tongue plate and the lower lock tongue plate; namely, the inclined tongue and the back locking bolt are mutually overlapped, so that the occupied space of the lock shell is reduced; the inclined tongue sliding plate drives the inclined tongue to independently stretch out and draw back the upper tongue plate and the lower tongue plate below the tongue sliding plate, so that the inclined tongue sliding plate and the lower tongue plate do not interfere with each other; the volume of the lock body can be effectively reduced, the structure in the lock body is simplified, and the production cost of the door lock is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of door locks, in particular to a simple fireproof lock.
Background
The door lock is a common door protection device for preventing illegal invasion of personnel outside the door, and the existing door lock body is generally provided with an upper lock tongue and a lower lock tongue, wherein the upper lock tongue stretches into a buckling box on the door frame to position the door leaf on the door frame, so that the door leaf is in a door closing state; the upper lock tongue is linked with the door handle, and the door handle can be rotated to enable the upper lock tongue to retract into the lock body, so that door opening operation is realized;
the lower lock tongue stretches into a corresponding buckling box on the door frame, so that the door leaf can be locked on the door frame, the door lock is in a back locking state, and therefore people outside the door cannot open the door leaf; one side of the lower lock tongue is linked with a back locking knob in the door, and the other side is linked with the lock cylinder; the door inner personnel can drive the lower lock tongue to stretch out and draw back through rotating the knob, and the door outer personnel can drive the lock cylinder to drive the lower lock tongue to stretch out and draw back through the key, so that the unlocking and back locking of the door lock are realized;
the existing door lock body is provided with the upper lock tongue and the lower lock tongue, so that the lock body needs to have a larger space for installing door lock accessories, and the volume of the lock body is increased; meanwhile, the internal structure hinge of the lock body is complex, and the production cost of the door lock body is increased.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a simple fireproof lock.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a simple fireproof lock comprises a lock shell, wherein an inclined bolt and a reverse locking bolt are slidably arranged in the lock shell; the anti-lock bolt comprises a bolt slide plate, an upper bolt plate and a lower bolt plate which are arranged at the front end part of the bolt slide plate at intervals, and the bolt slide plate drives the upper bolt plate and the lower bolt plate to synchronously stretch out and draw back inside and outside a lock shell;
the inclined tongue comprises an inclined tongue sliding plate arranged below the lock tongue sliding plate in a sliding manner and an inclined tongue connected to the front end part of the inclined tongue sliding plate, and the inclined tongue is arranged between the upper lock tongue plate and the lower lock tongue plate and stretches out and draws back inside a lock shell under the drive of the lock tongue sliding plate.
The utility model further provides that: the inclined tongue is movably arranged on the inclined tongue sliding plate through an inclined tongue rod, a compression spring is sleeved on the inclined tongue rod, the front end part of the compression spring is abutted against the inclined tongue sliding plate, and the rear end part of the compression spring is abutted against the inclined tongue rod; the spring force of the compression spring compresses the oblique tongue on the front end part of the oblique tongue slide plate.
The utility model further provides that: the front end part of the inclined tongue sliding plate is provided with a front supporting plate and a rear supporting plate at intervals, the inclined tongue rod at the rear end of the inclined tongue sequentially penetrates through the mounting holes of the front supporting plate and the rear supporting plate, and the front end part of the compression spring is propped against the front supporting plate.
The utility model further provides that: an unlocking component for driving the inclined tongue to stretch out and draw back is arranged in the lock shell, the unlocking component comprises an unlocking piece and a linkage piece which are both rotatably arranged in the lock shell, the upper end part of the linkage piece is matched with the unlocking piece, and the lower end part of the linkage piece is connected with the inclined tongue sliding plate;
the unlocking piece drives the linkage piece to enable the lower end portion of the linkage piece to swing backwards and drive the inclined tongue sliding plate to slide backwards.
The utility model further provides that: the upper end of the linkage piece is provided with a matching part matched with the unlocking piece, and the lower end of the linkage piece is inserted into the slot of the inclined tongue sliding plate.
The utility model further provides that: the unlocking piece is connected with a first reset torsion spring which drives the unlocking piece to reversely rotate;
the upper end part of the linkage piece is connected with a second reset torsion spring, the second reset torsion spring drives the linkage piece to swing reversely, and the lower end part of the linkage piece drives the inclined tongue sliding block to slide forwards, so that the inclined tongue extends out of the lock shell.
The utility model further provides that: the lock is characterized in that a counter-locking piece matched with the counter-locking lock tongue is arranged in the lock shell and abuts against the lock tongue sliding plate to prevent the lock tongue from shrinking into the lock shell.
The utility model further provides that: the anti-lock piece is longitudinally arranged in the lock shell in a sliding way, an anti-lock block is arranged on the anti-lock piece, and an anti-lock groove matched with the anti-lock block is formed in the rear end part of the lock tongue sliding plate;
the anti-lock piece slides downwards to enable the anti-lock block to be arranged in the anti-lock groove so as to prevent the anti-lock bolt from sliding.
The utility model further provides that: the lock is characterized in that a guide post is arranged in the lock shell, and guide grooves matched with the guide post are transversely formed in the lock tongue sliding plate and the inclined tongue sliding plate.
The utility model further provides that: and a cover plate matched with the lock shell is arranged above the lock shell.
The utility model has the beneficial effects that: the fireproof lock comprises a lock shell, wherein a lock shell is internally provided with a bevel tongue and a back-locking lock tongue in a sliding manner, the back-locking lock tongue comprises a lock tongue sliding plate and an upper lock tongue plate and a lower lock tongue plate which are arranged at the front end part of the lock tongue sliding plate at intervals, the bevel tongue comprises a bevel tongue sliding plate arranged below the lock tongue sliding plate and a bevel tongue connected to the front end part of the bevel tongue sliding plate, the bevel tongue sliding plate and the lock tongue sliding plate are mutually overlapped, and the bevel tongue is arranged between the upper lock tongue plate and the lower lock tongue plate; namely, the inclined tongue and the back locking bolt are mutually overlapped, so that the occupied space of the lock shell is reduced; the inclined tongue sliding plate drives the inclined tongue to independently stretch out and draw back the upper tongue plate and the lower tongue plate below the tongue sliding plate, so that the inclined tongue sliding plate and the upper tongue plate do not interfere with each other; the volume of the lock body can be effectively reduced, and meanwhile, the internal structure of the lock body is simplified, so that the production cost of the door lock is effectively reduced.
Drawings
FIG. 1 is a schematic view of a simplified fire lock according to the present utility model;
FIG. 2 is a diagram showing the engagement of a latch and an unlocking assembly of a reduced fire lock according to the present utility model;
FIG. 3 is a schematic view of a simplified latch of the fire lock of the present utility model;
FIG. 4 is a schematic view of a locking bolt of a simplified fire lock according to the present utility model;
reference numerals illustrate: 1. a lock case; 11. a cover plate; 12. a guide post; 2. a beveled tongue; 21. sloping tongue; 211. a beveled tongue bar; 212. a compression spring; 22. a tongue skateboard; 221. a slot; 222. a front support plate; 223. a rear support plate; 3. locking the lock tongue; 31. locking the tongue plate; 32. a lower latch plate; 33. a reverse locking groove; 4. unlocking the assembly; 41. an unlocking member; 411. a first return torsion spring; 42. a linkage member; 421. a second return torsion spring; 422. a mating portion; 5. a counter lock; 51. and (5) a reverse locking block.
Detailed Description
A simplified fire lock according to the present utility model will be described in further detail with reference to fig. 1 to 4.
A simple fireproof lock comprises a lock shell 1, wherein a bevel tongue 2 and a back-locking bolt 3 are arranged in the lock shell 1 in a sliding manner; the anti-lock bolt 3 comprises a bolt slide plate, an upper bolt plate 31 and a lower bolt plate 32 which are arranged at the front end part of the bolt slide plate at intervals, and the bolt slide plate drives the upper bolt plate 31 and the lower bolt plate 32 to synchronously stretch out and draw back inside the lock shell 1; the inclined tongue 2 comprises an inclined tongue slide plate 22 arranged below the lock tongue slide plate in a sliding way and an inclined tongue 21 connected to the front end part of the inclined tongue slide plate 22, wherein the inclined tongue 21 is arranged between an upper lock tongue plate 31 and a lower lock tongue plate 32 and stretches out and draws back inside the lock shell 1 under the drive of the lock tongue slide plate;
wherein the inclined tongue slide 22 and the tongue slide are stacked on each other, and the inclined tongue 21 is disposed between the upper tongue plate 31 and the lower tongue plate 32; namely, the inclined tongue 2 and the back locking bolt 3 are mutually overlapped, so that the occupied space of the lock shell 1 is reduced, and meanwhile, the inclined tongue 2 and the back locking bolt 3 can share one buckling box on the door frame, so that the buckling box structure is simplified; the inclined tongue slide plate 22 drives the inclined tongue 21 to independently stretch out and draw back the upper tongue plate 31 and the lower tongue plate 32 below the tongue slide plate, so that the inclined tongue 21 and the lower tongue plate are not interfered with each other; the volume of the lock body can be effectively reduced, and meanwhile, the internal structure of the lock body is simplified, so that the production cost of the door lock is effectively reduced.
The oblique tongue 21 is movably mounted on the oblique tongue sliding plate 22 through an oblique tongue rod 211, a front supporting plate 222 and a rear supporting plate 223 are arranged at the front end part of the oblique tongue sliding plate 22 at intervals, the oblique tongue rod 211 at the rear end of the oblique tongue 21 sequentially penetrates through mounting holes of the front supporting plate 222 and the rear supporting plate 223, a compression spring 212 is sleeved on the oblique tongue rod 211, the front end part of the compression spring 212 is abutted against the front supporting plate 222, the rear end part of the compression spring is abutted against the oblique tongue rod 211, and the oblique tongue 21 is compressed on the front end part of the oblique tongue sliding plate 22 by the elasticity of the compression spring 212; when the direction of the inclined tongue 2 is required to be changed (according to the left door and the right door), the inclined tongue 21 is only required to be pulled outwards, the elastic force of the compression spring 212 is overcome, the inclined tongue 21 is separated from the front supporting plate 222, and then the inclined tongue rod 211 rotates 180 degrees around the mounting hole, so that the inclined tongue 2 can be changed simply and conveniently; the inclined tongue 21 is in threaded connection with the lock rod, so that the inclined tongue 21 and the lock rod can be detached, and the inclined tongue 21 can be conveniently assembled on the sliding block of the inclined tongue 2.
The lock comprises a lock shell 1, wherein an unlocking component 4 for driving a latch bolt 2 to stretch and retract is arranged in the lock shell 1, the unlocking component 4 comprises an unlocking piece 41 and a linkage piece 42 which are all rotatably arranged in the lock shell 1, the unlocking piece 41 is linked with a door handle, the upper end part of the linkage piece 42 is matched with the unlocking piece 41, and the lower end part of the linkage piece is connected with a latch bolt slide plate 22; the door handle is turned to drive the unlocking piece 41 to rotate in the lock shell 1, and the unlocking piece 41 drives the linkage piece 42 to enable the lower end part of the linkage piece 42 to swing backwards and drive the latch slide plate 22 to slide backwards; the inclined tongue 21 is retracted into the lock shell 1, so that the door leaf can be opened;
the unlocking piece 41 is connected with a first reset torsion spring 411, and the first reset torsion spring 411 drives the unlocking piece 41 to reversely rotate; the upper end part of the linkage piece 42 is connected with a second reset torsion spring 421, the second reset torsion spring 421 drives the linkage piece 42 to reversely swing, the door handle is released after the door is opened, the linkage piece 42 reversely swings under the elastic force of the second reset torsion spring 421, and the lower end part of the linkage piece 42 drives the sliding block of the inclined tongue 2 to slide forwards, so that the inclined tongue 21 automatically stretches out of the lock shell 1; after the door is closed, the inclined tongue 21 can reposition the door leaf;
wherein the upper end of the linkage member 42 is provided with a matching part 422 matched with the unlocking member 41, and the lower end of the linkage member is inserted into a slot 221 of the latch slide plate 22; the unlocking piece 41 can better drive the linkage piece 42 to swing through the matching part 422, and the lower end part of the linkage piece 42 pushes the inclined tongue slide plate 22 to slide; the structure of the door lock is firmer and more stable.
Wherein, the lock shell 1 is internally provided with a counter lock piece 5 matched with the counter lock bolt 3, the counter lock piece 5 is longitudinally arranged in the lock shell 1 in a sliding way, the anti-lock piece 5 is provided with an anti-lock block 51, and the rear end part of the lock tongue sliding plate is provided with an anti-lock groove 33 matched with the anti-lock block 51; when the back locking bolt 3 extends out of the lock shell 1, the back locking piece 5 is pushed to slide downwards, so that the back locking piece 51 is placed in the back locking groove 33 to prevent the back locking bolt 3 from sliding backwards; the back locking operation of the door lock can be realized, so that people outside the door cannot open the door leaf.
Wherein, a guide post 12 is arranged in the lock shell 1, and the bolt slide plate and the oblique bolt slide plate 22 are both transversely provided with guide grooves matched with the guide post 12; under the guiding action of the guide rod, the bolt slide plate and the oblique bolt slide plate 22 slide more stably, so that the structure of the door lock is more stable.
Wherein, each accessory of the fireproof lock is made of metal, a cover plate 11 matched with the lock shell 1 is arranged above the lock shell 1, and the cover plate 11 is matched with the lock shell 1 to cover each accessory of the fireproof lock in the lock shell 1; so that the door lock has better fireproof function.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (10)
1. A simple fireproof lock comprises a lock shell, wherein an inclined bolt and a reverse locking bolt are slidably arranged in the lock shell; the method is characterized in that: the anti-lock bolt comprises a bolt slide plate, an upper bolt plate and a lower bolt plate which are arranged at the front end part of the bolt slide plate at intervals, and the bolt slide plate drives the upper bolt plate and the lower bolt plate to synchronously stretch out and draw back inside and outside a lock shell;
the inclined tongue comprises an inclined tongue sliding plate arranged below the lock tongue sliding plate in a sliding manner and an inclined tongue connected to the front end part of the inclined tongue sliding plate, and the inclined tongue is arranged between the upper lock tongue plate and the lower lock tongue plate and stretches out and draws back inside a lock shell under the drive of the lock tongue sliding plate.
2. A compact fire lock according to claim 1, wherein: the inclined tongue is movably arranged on the inclined tongue sliding plate through an inclined tongue rod, a compression spring is sleeved on the inclined tongue rod, the front end part of the compression spring is abutted against the inclined tongue sliding plate, and the rear end part of the compression spring is abutted against the inclined tongue rod; the spring force of the compression spring compresses the oblique tongue on the front end part of the oblique tongue slide plate.
3. A compact fire lock according to claim 2, wherein: the front end part of the inclined tongue sliding plate is provided with a front supporting plate and a rear supporting plate at intervals, the inclined tongue rod at the rear end of the inclined tongue sequentially penetrates through the mounting holes of the front supporting plate and the rear supporting plate, and the front end part of the compression spring is propped against the front supporting plate.
4. A compact fire lock according to claim 1, 2 or 3, wherein: an unlocking component for driving the inclined tongue to stretch out and draw back is arranged in the lock shell, the unlocking component comprises an unlocking piece and a linkage piece which are both rotatably arranged in the lock shell, the upper end part of the linkage piece is matched with the unlocking piece, and the lower end part of the linkage piece is connected with the inclined tongue sliding plate;
the unlocking piece drives the linkage piece to enable the lower end portion of the linkage piece to swing backwards and drive the inclined tongue sliding plate to slide backwards.
5. The compact fire lock of claim 4, wherein: the upper end of the linkage piece is provided with a matching part matched with the unlocking piece, and the lower end of the linkage piece is inserted into the slot of the inclined tongue sliding plate.
6. The compact fire lock of claim 5, wherein: the unlocking piece is connected with a first reset torsion spring which drives the unlocking piece to reversely rotate;
the upper end part of the linkage piece is connected with a second reset torsion spring, the second reset torsion spring drives the linkage piece to swing reversely, and the lower end part of the linkage piece drives the inclined tongue sliding block to slide forwards, so that the inclined tongue extends out of the lock shell.
7. A compact fire lock according to claim 1, 2 or 3, wherein: the lock is characterized in that a counter-locking piece matched with the counter-locking lock tongue is arranged in the lock shell and abuts against the lock tongue sliding plate to prevent the lock tongue from shrinking into the lock shell.
8. The compact fire lock of claim 7, wherein: the anti-lock piece is longitudinally arranged in the lock shell in a sliding way, an anti-lock block is arranged on the anti-lock piece, and an anti-lock groove matched with the anti-lock block is formed in the rear end part of the lock tongue sliding plate;
the anti-lock piece slides downwards to enable the anti-lock block to be arranged in the anti-lock groove so as to prevent the anti-lock bolt from sliding.
9. A compact fire lock according to claim 1, 2 or 3, wherein: the lock is characterized in that a guide post is arranged in the lock shell, and guide grooves matched with the guide post are transversely formed in the lock tongue sliding plate and the inclined tongue sliding plate.
10. A compact fire lock according to claim 1, 2 or 3, wherein: and a cover plate matched with the lock shell is arranged above the lock shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321921752.2U CN220469620U (en) | 2023-07-20 | 2023-07-20 | Simple fireproof lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321921752.2U CN220469620U (en) | 2023-07-20 | 2023-07-20 | Simple fireproof lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220469620U true CN220469620U (en) | 2024-02-09 |
Family
ID=89804838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321921752.2U Active CN220469620U (en) | 2023-07-20 | 2023-07-20 | Simple fireproof lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220469620U (en) |
-
2023
- 2023-07-20 CN CN202321921752.2U patent/CN220469620U/en active Active
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