Vertical latch locking mechanism for rotating seat
View Patent ↗Disclosed in the utility model is a vertical latch locking mechanism for a rotating seat, including a vertical latch locking mechanism mounted on a rotating disc in a seat rotation mechanism, at least one lockhole provided on a disc surface of a fixed disc in the seat rotation mechanism, and at least one first lock pin hole provided on the rotating disc. The lockhole is aligned with the first lock pin hole, and the vertical latch locking mechanism includes: a locking pin bracket fixed on the rotating disc; and at least two lock pins vertically and moveably configured on the locking pin bracket. A first end of the lock pin passes through the first lock pin hole and is inserted into the lockhole, to implement locking. In the utility model, a horizontal locking mechanism is changed to a vertical latch mechanism, radial sizes of the rotating disc and the fixed disc are greatly reduced, and a diameter can be reduced to less than 200 mm. In addition, the vertical latch locking mechanism for a rotating seat does not extend beyond the rotating disc and can be hidden at a lower end of a cushion. The lock pin moves in an inner cavity of the rotating disc and does not scratch the outside, providing a good appearance.
1 . A vertical latch locking mechanism for a rotating seat, the vertical latch locking mechanism being configured to be mounted on a rotating disc in a seat rotation mechanism, at least one lockhole being provided on a disc surface of a fixed disc in the seat rotation mechanism, and at least one first lock pin hole being provided on the rotating disc and being aligned with a lockhole amongst the at least one lockhole, the vertical latch locking mechanism comprising:
a locking pin bracket including a top surface, at least two second lock pin holes being disposed side by side with each other in the top surface;
a lock mounting bracket disposed vertically below the locking pin bracket and to be attached to the rotating disc, at least two third lock pin holes being disposed side by side with each other in the lock mounting bracket, the at least two third lock pin holes of the lock mounting bracket being aligned one by one with the at least two second lock pin holes in the top surface of the locking pin bracket; and
at least two lock pins that are disposed vertically in parallel and side by side with each other and moveably configured to pass through the at least two second lock pin holes in the locking pin bracket and to pass through the at least two third lock pin holes aligned in the lock mounting bracket with the at least two second lock pin holes in the top surface of the locking pin bracket,
wherein for each lock pin amongst the at least two lock pins, a first end of the lock pin is configured to pass through a corresponding first lock pin hole amongst the at least one first lock pin hole and is configured to be inserted into the lockhole, to implement locking.
2 . The vertical latch locking mechanism for a rotating seat according to claim 1 , wherein the first end of the lock pin is in a cone shape.
3 . The vertical latch locking mechanism for a rotating seat according to claim 1 , wherein
the locking pin bracket further comprises a first side surface, a second side surface, a third side surface, and a fourth side surface,
the first and second side surface are downward bent from a first side and a second side of the top surface and are symmetrically located on the first and second sides of the top surface,
the third and fourth side surfaces are bent from two sides of the second side surface and are attached to the first side surface,
bottoms of the first through fourth side surfaces of the locking pin bracket are attached to the lock mounting bracket.
4 . The vertical latch locking mechanism for a rotating seat according to claim 1 , further comprising: an unlock bracket hinged on the locking pin bracket, wherein the unlock bracket is connected to the lock pins, to drive the lock pins for unlocking.
5 . A vertical latch locking mechanism for a rotating seat, the vertical latch locking mechanism being configured to be mounted on a rotating disc in a seat rotation mechanism, at least one lockhole being provided on a disc surface of a fixed disc in the seat rotation mechanism, and at least one first lock pin hole being provided on the rotating disc and being aligned with a lockhole amongst the at least one lockhole, the vertical latch locking mechanism comprising:
a locking pin bracket to be attached to the rotating disc, the locking pin bracket comprising a top surface, a first side surface, a second side surface, a third side surface, and a fourth side surface; and
at least two lock pins vertically and moveably configured on the locking pin bracket, wherein
the first side surface and the second side surface of the locking pin bracket bend downward from a first side and a second side of the top surface of the locking pin bracket and are disposed symmetrically on the first side and the second side of the top surface, and
the third side surface and the fourth side surface of the locking pin bracket bend forward from two sides of the second side surface of the locking pin bracket and are attached to the first side surface of the locking pin bracket, and
second ends of the at least two lock pins pass through second lock pin holes provided on the top surface of the locking pin bracket.
6 . The vertical latch locking mechanism for a rotating seat according to claim 5 , wherein a locking pin silencing bushing is mounted inside each second lock pin hole, and second ends of the at least two lock pins pass through the locking pin silencing bushings.
7 . The vertical latch locking mechanism for a rotating seat according to claim 5 , further comprising: an unlock bracket hinged on the locking pin bracket, wherein the unlock bracket is drivingly connected to the lock pins, to drive the lock pins for unlocking.
8 . The vertical latch locking mechanism for a rotating seat according to claim 7 , wherein the unlock bracket is hinged on the locking pin bracket by using an unlock lever dowel pin.
9 . The vertical latch locking mechanism for a rotating seat according to claim 8 , wherein
two first hinge lugs are symmetrically disposed on the unlock bracket,
a first hinge hole is provided in each first hinge lug,
a dowel pin bushing is mounted in each first hinge hole, and
two ends of the unlock lever dowel pin respectively pass through two dowel pin bushings.
10 . The vertical latch locking mechanism for a rotating seat according to claim 9 , wherein
two second lock lugs are symmetrically disposed on the first side surface of the locking pin bracket,
a second hinge hole is provided in each second lock lug, and
the two ends of the unlock lever dowel pin respectively pass through the second hinge holes and are anchored.
11 . The vertical latch locking mechanism for a rotating seat according to claim 10 , wherein
a dowel pin bushing is mounted in each second hinge hole, and
second ends of the two ends of the unlock lever dowel pin pass through the dowel pin bushings.
12 . The vertical latch locking mechanism for a rotating seat according to claim 8 , wherein
an unlocking portion is disposed on the unlock bracket,
at least one lock pin notch is provided on the unlocking portion, and
a convex ring is disposed at a middle position of each lock pin, wherein
the unlocking portion is inserted into the locking pin bracket from a bottom of the first side surface of the locking pin bracket,
the at least one lock pin notch on the unlocking portion fits into a position below the convex ring on a corresponding lock pin and enables an upper surface of the unlocking portion to be in contact with a lower surface of the convex ring, and
the unlock bracket drives, by using the convex ring, the lock pin to move upward to unlock.
13 . The vertical latch locking mechanism for a rotating seat according to claim 12 , wherein
a lock pin return spring is sleeved over the second end of each lock pin, wherein
a lower end of the lock pin return spring abuts against the convex ring, and
an upper end of the lock pin return spring abuts against the top surface of the locking pin bracket.
14 . The vertical latch locking mechanism for a rotating seat according to claim 13 , further comprising
a lock mounting bracket, wherein
the lock mounting bracket is mounted on the rotating disc by using a fastener, and
bottoms of the first side surface, the second side surface, the third side surface, and the fourth side surface of the locking pin bracket are welded to the lock mounting bracket;
a gap is left between the bottom of the first side surface and the upper surface of the lock mounting bracket, and
the unlocking portion is inserted into the locking pin bracket through the gap; and
two third lock pin holes are provided side by side on the lock mounting bracket,
the two third lock pin holes are aligned one by one with two of the first lock pin holes on the rotating disc, and
for each lock pin the first end of the lock pin passes through the third lock pin hole and the second lock pin hole.
15 . The vertical latch locking mechanism for a rotating seat according to claim 14 , wherein
an unlocking operating portion is disposed on the unlock bracket; and
the unlocking operating portion is operated to drive the unlock bracket to rotate, to implement unlocking.
16 . The vertical latch locking mechanism for a rotating seat according to claim 15 , wherein when the vertical latch locking mechanism is mounted on the rotating disc, mounting can be performed with the unlocking operating portion facing the outside of the rotating disc or with the unlocking operating portion facing the inside of the rotating disc.
17 . The vertical latch locking mechanism for a rotating seat according to claim 16 , wherein
an unlock cable hanger lug is disposed on the unlocking operating portion, and
an end of an unlock cable is connected to the unlock cable hanger lug.
18 . The vertical latch locking mechanism for a rotating seat according to claim 17 , wherein
an unlock pin is mounted on the unlocking operating portion and the unlocking operating portion further comprises an unlock lever, wherein
the unlock lever is hinged on the rotating disc;
an unlock slot is provided on the unlock lever, wherein
the unlock slot comprises an arc-shaped slot edge;
the unlock pin is inserted into the unlock slot and is in contact with the arc-shaped slot edge; and
when the unlock lever is rotated, the unlock lever drives, by using the arc-shaped slot edge, the unlock pin to move, to drive the unlock bracket to unlock.
19 . The vertical latch locking mechanism for a rotating seat according to claim 5 , wherein
climbing slopes are respectively disposed on two sides of the lockhole that is along a rotation direction of the rotating disc and that is on the disc surface of the fixed disc, and
the lockhole is located at a highest position of the climbing slope.