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(11) | EP 4 050 185 A1 |
(12) | EUROPEAN PATENT APPLICATION |
published in accordance with Art. 153(4) EPC |
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(54) | DOOR HINGE HAVING TWO-SECTION FORCE |
(57) A door hinge having a two-section force, comprising a first rotating shaft (3), a
second rotating shaft (4), a crank (5), a rocker (6), a housing (10), a hinge cup
(1), a U-shaped shaft (2), a double-leg torsion spring (7), a damper (8), and a guide
base (9). Protrusions (52) and arc-shaped abutting positions (51) are provided on
both front and back sides of a right end of the crank (5), an arc center of each of
the arc-shaped abutting position (51) is coaxial with the axis of the first rotating
shaft (3); two legs (71) of the double-leg torsion spring (7) respectively abut on
the corresponding arc-shaped abutting positions (51) or abut on right ends of the
arc-shaped abutting position (51); the damper (8) is mounted in the housing (10);
recesses (91) are provided on both front and back sides of the guide base (9); the
guide base (9) is located in the housing (10) and can relatively move; the protrusions
(52) are located in the corresponding recesses (91); and an end portion of a piston
rod (84) of the damper (8) is provided on the guide base (9). |
FIELD OF THE DISCLOSURE
BACKGROUND OF THE DISCLOSURE
SUMMARY OF THE DISCLOSURE
Technical problem
Solutions to problems
Technical solution
a first rotating shaft, a second rotating shaft, a crank, a rocker and a housing; wherein, the first rotating shaft and the second rotating shaft are both mounted on a left part of the housing; the right end portion of the crank is rotationally connected with the left part of the housing through the first rotating shaft; protrusions and arc-shaped abutting positions are provided on both front and back sides of a right end of the crank; the arc-shaped abutting position is located on the left side of the protrusion, and an arc center of each of the arc-shaped abutting position is coaxial with the axis of the first rotating shaft; the right end portion of the rocker is rotationally connected with the left part of the housing through the second rotating shaft;
a hinge cup and a U-shaped shaft; the left end portion of the rocker is rotationally connected with the hinge cup through a shaft of the U-shaped shaft, and the left end portion of the crank is rotationally connected with the hinge cup through the other shaft of the U-shaped shaft;
a double-leg torsion spring; the double-leg torsion spring is sleeved on the second rotating shaft; a positioning structure for positioning the double-leg torsion spring is provided on the double-leg torsion spring; two legs of the double-leg torsion spring respectively abut on the corresponding arc-shaped abutting positions or abut on right ends of the arc-shaped abutting positions; when the two legs of the double-leg torsion spring abut on the arc-shaped abutting positions, the door hinge is in a first way, and when the two legs of the double-leg torsion spring abut on the right end of the arc-shaped abutting positions, the door hinge is in a second way; and
a damper and a guide base; the damper is mounted in the housing; recesses are provided on both front and back sides of the guide base; the guide base is located in the housing and can relatively move; the protrusions are located in the corresponding recesses to drive the guide base to move; and an end portion of a piston rod of the damper is provided on the guide base, so that the damper acts as a buffer role.
The beneficial effects of the disclosure
Beneficial effects
BRIEF DESCRIPTION OF THE DRAWINGS
DESCRIPTION OF THE DRAWINGS
Fig. 1 is an exploded view of the present disclosure;
Fig. 2 is an perspective view of the present disclosure;
Fig. 3 is an top view of the present disclosure;
Fig. 4 is a cross-sectional view taken along line A-A in fig. 3;
Fig. 5 is a cross-sectional view taken along line B-B in fig. 3;
Fig. 6 is a cross-sectional view taken along line C-C in fig. 3;
Fig. 7 is a front perspective view of the present disclosure with the housing and the rocker removed;
Fig. 8 is a rear perspective view of the present disclosure with the housing and the rocker removed;
Fig. 9 is an exploded view of the damper and the guide base of the present disclosure;
Fig. 10 is a perspective view of the crank of the present disclosure.
DETAILED DESCRIPTION OF THE EMBODIMENTS
The preferred embodiments of the disclosure
a first rotating shaft 3, a second rotating shaft 4, a crank 5, a rocker 6 and a housing 10; wherein, the first rotating shaft 3 and the second rotating shaft 4 are both mounted on a left part of the housing 10; the right end portion of the crank 5 is rotationally connected with the left part of the housing 10 through the first rotating shaft 3; protrusions 52 and arc-shaped abutting positions 51 are provided on both front and back sides of a right end of the crank 5; the arc-shaped abutting position 51 is located on the left side of the protrusion 52, and an arc center of each of the arc-shaped abutting position 51 is coaxial with the axis of the first rotating shaft 3; the right end portion of the rocker 6 is rotationally connected with the left part of the housing 10 through the second rotating shaft 4;
a hinge cup 1 and a U-shaped shaft 2; the left end portion of the rocker 6 is rotationally connected with the hinge cup 1 through a shaft of the U-shaped shaft 2, and the left end portion of the crank 5 is rotationally connected with the hinge cup 1 through the other shaft of the U-shaped shaft 2;
a double-leg torsion spring 7; the double-leg torsion spring 7 is sleeved on the second rotating shaft 4; a positioning structure for positioning the double-leg torsion spring 7 is provided on the double-leg torsion spring 7; two legs 71 of the double-leg torsion spring 7 respectively abut on the corresponding arc-shaped abutting positions 51 or abut on right ends of the arc-shaped abutting positions 51; when the two legs 71 of the double-leg torsion spring 7 abut on the arc-shaped abutting positions 51, the door hinge is in a first way, and when the two legs 71 of the double-leg torsion spring 7 abut on the right end of the arc-shaped abutting positions 51, the door hinge is in a second way; and
a damper 8 and a guide base 9; the damper 8 is mounted in the housing 10; recesses 91 are provided on both front and back sides of the guide base 9; the guide base 9 is located in the housing 10 and can relatively move; the protrusions 52 are located in the corresponding recesses 91 to drive the guide base 9 to move; and an end portion of a piston rod 84 of the damper 8 is provided on the guide base 9, so that the damper 8 acts as a buffer role.
a first rotating shaft (3), a second rotating shaft (4), a crank (5), a rocker (6) and a housing (10); wherein, the first rotating shaft (3) and the second rotating shaft (4) are both mounted on a left part of the housing (10); the right end portion of the crank (5) is rotationally connected with the left part of the housing (10) through the first rotating shaft (3); protrusions (52) and arc-shaped abutting positions (51) are provided on both front and back sides of the right end portion of the crank (5); the arc-shaped abutting position (51) is located on a left side of the protrusion (52), and an arc center of each arc-shaped abutting position (51) is coaxial with an axis of the first rotating shaft (3); a right end portion of the rocker (6) is rotationally connected with the left part of the housing (10) through the second rotating shaft (4);
a hinge cup (1) and a U-shaped shaft (2); wherein a left end portion of the rocker (6) is rotationally connected with the hinge cup (1) through a shaft of the U-shaped shaft (2), and a left end portion of the crank (5) is rotationally connected with the hinge cup (1) through another shaft of the U-shaped shaft (2);
a double-leg torsion spring (7); wherein the double-leg torsion spring (7) is sleeved on the second rotating shaft (4); a positioning structure for positioning the double-leg torsion spring (7) is provided on the double-leg torsion spring (7); two legs (71) of the double-leg torsion spring (7) respectively abut on corresponding arc-shaped abutting positions (51) or abut on right ends of the arc-shaped abutting positions (51); when the two legs (71) of the double-leg torsion spring (7) abut on the arc-shaped abutting positions (51), the door hinge is in a first way, and when the two legs (71) of the double-leg torsion spring (7) abut on the right ends of the arc-shaped abutting positions (51), the door hinge is in a second way; and
a damper (8) and a guide base (9); wherein the damper (8) is mounted in the housing (10); recesses (91) are provided on both front and back sides of the guide base (9); the guide base (9) is located in the housing (10) and is able to relatively move; the protrusions (52) are located in corresponding recesses (91) to drive the guide base (9) to move; and an end portion of a piston rod (84) of the damper (8) is provided on the guide base (9), so that the damper (8) acts as a buffer.