Door bolt with self-locking functionThe utility model relates to the technical field of door bolts, in particular to a door bolt with self-locking function.
Background
The traditional door bolt consists of a movable bolt and a fixed bolt, when the door bolt is used, a handle of the bolt is needed to be found and grabbed, the bolt is driven to slide into or out of the bolt to realize the locking and unlocking of the door, the structure is simple, the door bolt has a certain anti-index effect, but the use mode of the door bolt is not easy enough, the bolt is easy to unlock in the day, the stroke of the bolt is short, and the door locking function is limited.
Disclosure of Invention
(1) Technical problem to be solved
The utility model aims to overcome the defects of the prior art, adapt to the actual needs, provide a door bolt with self-locking, which is simpler and more convenient to use, and provide a bolt with longer size travel on a product with the same size by a new design, so that the door lock can be firmer, thereby solving the technical problems. Technical proposal
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
the utility model provides a door bolt with auto-lock, includes bolt board and bolt, the bolt along one side of thickness direction with the bolt is laminated mutually along one side of thickness direction, the bolt board has the lockhole, the lockhole all link up the bolt board is along the both sides side of thickness direction, the bolt has the locating hole, the locating hole all link up the bolt is along the both sides side of thickness direction, the locating hole with the lockhole is just right, the door bolt still includes the starting piece.
The starting piece comprises a button, a top ring and a spring, part of the button can reciprocate in the positioning hole and the lock hole, the top ring is sleeved on the outer circumferential wall of the button, the spring is sleeved on the outer circumferential wall of the button, the top ring is closer to the latch plate than the spring, the outer circumferential wall of the button is provided with a first circumferential wall, a second circumferential wall and a third circumferential wall, the diameter of the second circumferential wall is smaller than that of the first circumferential wall and that of the third circumferential wall, and the diameters of the first circumferential wall and the third circumferential wall are the same.
The bolt board includes first board portion and second board portion, first board portion is 90 buckles with the second board portion, the lockhole is located first board portion, the second board portion has the bolt jack, the bolt includes third board portion and bolt head, the locating hole is located on the third board portion, the bolt head can be in reciprocating motion in the bolt jack.
After the button passes through the positioning hole, one end of the button is forged and pressed to deform and expand the metal, and then the button is connected with the positioning Kong Duanya to form fixation and installation.
The bolt plate is formed by stamping hardware.
Advantageous effects
When the bolt is required to be slid, the bolt is only required to be pressed downwards, the third peripheral wall is enabled to enter the positioning hole, the second peripheral wall is enabled to enter the lock hole, and accordingly the button can be pushed in a left-right reciprocating mode, the button drives the positioning hole bolt to move, when the bolt is required to be self-locked, the hand is only required to be removed, the button is enabled to reset upwards under the action of the spring, the third peripheral wall is enabled to enter the lock hole again, and the third peripheral wall is tightly attached to the inner wall of the lock hole, so that self-locking can be achieved by means of the clamping force clamped to the position, and the door bolt can be switched between sliding and self-locking more conveniently.
Drawings
FIG. 1 is a schematic perspective view of a latch with self-locking mechanism according to the present utility model;
FIG. 2 is a schematic perspective view of a latch with self-locking mechanism according to a second embodiment of the present utility model;
FIG. 3 is a schematic view of the internal cross-sectional structure of a latch with self-locking mechanism according to the present utility model;
fig. 4 is an enlarged view at a in fig. 3.
Description of the embodiments
The utility model is further illustrated by the following examples in connection with figures 1-4:
the utility model provides a door bolt with auto-lock, includes bolt board 1 and bolt 25, bolt 1 along the one side of thickness direction with bolt 25 is laminated mutually along the one side of thickness direction, bolt board 1 has lockhole 3, lockhole 3 all link up bolt board 1 is along the both sides side of thickness direction, bolt 25 has locating hole 4, locating hole 4 all link up bolt 25 is along the both sides side of thickness direction, locating hole 4 with lockhole 3 is just right, the door bolt still includes the starting piece.
The starting piece comprises a button 5, a top ring 20 and a spring 21, part of the button 5 can reciprocate in the positioning hole 4 and the lock hole 3, the top ring 20 is sleeved on the outer circumferential wall of the button 5, the spring 21 is sleeved on the outer circumferential wall of the button 5, the top ring 20 is closer to the latch plate 1 than the spring 21, the outer circumferential wall of the button is provided with a first circumferential wall 300, a second circumferential wall 301 and a third circumferential wall 302, the diameter of the second circumferential wall 301 is smaller than that of the first circumferential wall 300 and the third circumferential wall 302, and the diameter of the first circumferential wall 300 is the same as that of the third circumferential wall 302.
The latch plate 1 comprises a first plate part 100 and a second plate part 101, the first plate part 100 and the second plate part 101 are bent at 90 degrees, the lock hole 3 is positioned on the first plate part 100, the second plate part 101 is provided with a latch insertion hole 102, the latch 25 comprises a third plate part 104 and a latch head 105, the positioning hole 4 is positioned on the third plate part 104, and the latch head 105 can reciprocate in the latch insertion hole 102.
After the button 5 passes through the positioning hole 4, metal is deformed and expanded through one end of the forging button and then is connected with the positioning hole 4 through forging, so that fixation and installation are formed.
The latch plate 1 is formed by stamping through hardware.
The working principle of the utility model comprises the following steps:
when the bolt is required to be slid, only the bolt 25 needs to be pressed downwards, the third peripheral wall 302 enters the positioning hole 4, the second peripheral wall 301 enters the lock hole 3, so that the button 5 can be pushed in a left-right reciprocating mode, the button 5 drives the positioning hole 4 to move through the bolt, when the bolt is required to be self-locked, only the hand is required to be removed, the button 5 is reset upwards under the action of the spring 21, the third peripheral wall 302 is enabled to enter the lock hole 3 again, and the third peripheral wall 302 is tightly attached to the inner wall of the lock hole 3, so that self-locking can be realized by using the fastening force, and the state of the bolt can be switched between sliding and self-locking more conveniently.
The embodiments of the present utility model are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present utility model.