Door hinge with slope
Technical Field
The invention belongs to the technical field of hardware door accessories, and particularly relates to a door hinge with a slope.
Background
In order to prevent water accumulation, the ground in a lot of courtyards is higher than the ground outside the courtyards, and a slope is arranged at a courtyard door for facilitating vehicle access, but the slope brings obstacles for installing a vertical hinged door, so that the vertical hinged door cannot be opened. At present, the method for solving the problems is to improve the installation height of the lower end of the door body to ensure that the lower end of the door body has larger space.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a door hinge with a slope, which enables a door body to automatically rise when being opened without being blocked by the slope, the door body automatically descends when being closed, no space is arranged at the lower end of the door body, the door body is not hard to rise when being opened, and the door body is not fast to descend when being closed.
The technical scheme adopted by the invention is as follows: a door hinge for use with a door having a ramp, the door hinge comprising a lower member and an upper member, wherein:
the lower part is fixed on the wall body and comprises a first shaft sleeve, a rotating shaft, a spring and a first fixing plate; the first shaft sleeve is a cylinder with an opening at the upper end and a closed lower end, the upper end of the first shaft sleeve is provided with a notch, the notch comprises a vertical surface, a transverse plane vertical to the lower end of the vertical surface and an inclined surface connected with the transverse plane, the height of the vertical surface is equal to the height of a slope, the span of the inclined surface occupies one fourth of the circumference of the first shaft sleeve, and the upper end of the inclined surface and the upper end surface of the first shaft sleeve are in arc transition; the rotating shaft is vertically arranged on the central axis of the first shaft sleeve, the lower end of the rotating shaft is fixed at the closed end of the first shaft sleeve, the upper end of the rotating shaft extends out of the opening of the first shaft sleeve, and the length of the rotating shaft is not less than the sum of the height of the first shaft sleeve and the height of the slope; the spring is sleeved on the rotating shaft in a penetrating way and is contacted with the closed end of the first shaft sleeve, and the spring can freely stretch out and draw back in the rotating shaft and the first shaft sleeve; the first fixing plate is fixed on the first shaft sleeve, a plurality of fixing holes are formed in the first fixing plate, and the lower component is fixed on the wall body through the fixing holes;
the upper part is fixed on the door body and positioned above the lower part, and the upper part comprises a second shaft sleeve, an inner sleeve and a second fixing plate; the two ends of the second shaft sleeve are opened, the inner diameter of the second shaft sleeve is the same as the inner diameter of the first shaft sleeve, the lower end of the second shaft sleeve is provided with a bulge, and the shape of the bulge is matched with the shape of the notch on the first shaft sleeve; the inner sleeve is fixedly arranged in the second shaft sleeve, the outer diameter of the inner sleeve is the same as the inner diameter of the second shaft sleeve, the inner diameter of the inner sleeve is the same as the outer diameter of the rotating shaft, the inner sleeve is sleeved on the rotating shaft in a penetrating manner, and the upper end of a spring sleeved on the rotating shaft in a penetrating manner is propped against the lower end of the inner sleeve; the second fixing plate is fixed on the second shaft sleeve, a plurality of fixing holes are formed in the second fixing plate, and the upper part is fixed on the door body through the fixing holes.
Further, the first shaft sleeve and the first fixing plate are integrally formed; the second shaft sleeve, the inner sleeve and the second fixing plate are integrally formed.
The working process of the invention is as follows: when the door body is in a closed state, the bulge of the upper part is meshed with the notch of the lower part, the spring is in a compressed state, when the door body needs to be opened, the door body is pushed, the bulge of the upper part slides upwards along the notch inclined plane of the lower part, the upper part drives the door body to rise upwards along the rotating shaft, the spring provides an upward elastic force for the upper part at the moment, although the door body rises upwards at the moment, the elastic force of the spring overcomes partial gravity of the door body, so that the door opening is not too laborious, when the door body rotates by 90 degrees, the door opening is completely opened, the door body continues to rotate, the bulge of the upper part completely leaves the notch of the lower part, the transverse plane of the bulge of the upper part slides on the upper end face of the second shaft sleeve; when needs are closed the door, the pulling door body, the arch of upper portion spare is engaged with the breach of lower part gradually, and the door body descends along the pivot gradually, and the spring is compressed gradually, though the door body descends this moment, because the resistance of the gravity of the door body need overcome the spring, therefore the door body can not the rapid motion, can not bring danger for the person of closing the door.
The invention has the beneficial effects that: the door hinge enables the door body to automatically rise when being opened without being blocked by a slope, the door body automatically descends when being closed, the lower end of the door body has no space, meanwhile, the spring is arranged in the hinge, the door body is not hard to rise when being opened, and the door body is not quick to descend when being closed.
Drawings
Fig. 1 is a schematic view of the overall appearance structure of the present invention.
Fig. 2 is a schematic view of the structure of the lower part of the present invention.
Fig. 3 is a schematic structural view of the upper part of the invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A door hinge for use with a door having a slope, the door hinge comprising a lower part 1 and an upper part 2, characterized in that:
the lower part 1 is fixed on a wall body, and the lower part 1 comprises a first shaft sleeve 3, a rotating shaft 6, a spring 10 and a first fixing plate 4; the first shaft sleeve 3 is a cylinder with an opening at the upper end and a closed lower end, the upper end of the first shaft sleeve 3 is provided with a notch 11, the notch 11 comprises a vertical surface 12, a transverse plane 13 perpendicular to the lower end of the vertical surface 12 and an inclined surface 14 connected with the transverse plane 13, wherein the height of the vertical surface 12 is equal to the height of a slope, the span of the inclined surface 14 occupies one fourth of the circumference of the first shaft sleeve 3, and the upper end of the inclined surface 14 and the upper end surface of the first shaft sleeve 3 are in arc transition; the rotating shaft 6 is vertically arranged on the central axis of the first shaft sleeve 3, the lower end of the rotating shaft 6 is fixed at the closed end of the first shaft sleeve 3, the upper end of the rotating shaft 6 extends out of the opening of the first shaft sleeve 3, and the length of the rotating shaft 6 is not less than the sum of the height of the first shaft sleeve 3 and the height of the slope; the spring 10 is sleeved on the rotating shaft 6 in a penetrating way and is contacted with the closed end of the first shaft sleeve 3, and the spring 10 can freely stretch and retract in the rotating shaft 6 and the first shaft sleeve 3; the first fixing plate 4 is fixed on the first shaft sleeve 3, a plurality of fixing holes 5 are formed in the first fixing plate 4, and the lower part 1 is fixed on a wall body through the fixing holes 5;
the upper part 2 is fixed on the door body, the upper part 2 is positioned above the lower part 1, and the upper part 2 comprises a second shaft sleeve 7, an inner sleeve 8 and a second fixing plate 9; the two ends of the second shaft sleeve 7 are opened, the inner diameter and the outer diameter of the second shaft sleeve 7 are the same as those of the first shaft sleeve 3, the lower end of the second shaft sleeve 7 is provided with a bulge 15, and the shape of the bulge 15 is matched with the shape of the notch 11 on the first shaft sleeve 3; the inner sleeve 8 is fixedly arranged in the second shaft sleeve 7, the outer diameter of the inner sleeve 8 is the same as the inner diameter of the second shaft sleeve 7, the inner diameter of the inner sleeve 8 is the same as the outer diameter of the rotating shaft 6, the inner sleeve 8 is sleeved on the rotating shaft 6 in a penetrating manner, and the upper end of a spring 10 sleeved on the rotating shaft 6 in a penetrating manner is propped against the lower end of the inner sleeve 8; the second fixing plate 9 is fixed on the second shaft sleeve 7, a plurality of fixing holes 5 are formed in the second fixing plate 9, and the upper part 2 is fixed on the door body through the fixing holes 5.
Further, the first shaft sleeve 3 and the first fixing plate 4 are integrally formed; the second shaft sleeve 7, the inner sleeve 8 and the second fixing plate 9 are integrally formed.
The working process of the invention is as follows: when the door body is in a closed state, the bulge 15 of the upper part 2 is meshed with the notch 11 of the lower part 1, the spring 10 is in a compressed state, when the door body needs to be opened, the door body is pushed, the bulge 15 of the upper part 2 slides upwards along the inclined plane 14 of the notch 11 of the lower part 1, the upper part 2 drives the door body to lift upwards along the rotating shaft 6, the spring 10 provides an upward elastic force for the upper part 2 at the moment, although the door body lifts upwards at the moment, the door body cannot be opened too hard because the elastic force of the spring 10 overcomes partial gravity of the door body, when the door body rotates 90 degrees, the door opening is completely opened, the door body continues to rotate, the bulge 15 of the upper part 2 completely leaves the notch 11 of the lower part 1, the horizontal plane of the bulge 15 of the upper part 2 slides on the upper end face of the second shaft sleeve 3, at the; when needing to close the door, the pulling door body, the arch 15 of upper segment 2 meshes with the breach 11 of lower segment 1 gradually, and the door body descends along pivot 6 gradually, and spring 10 is compressed gradually, though the door body descends this moment, because the resistance of spring 10 need be overcome to the gravity of the door body, therefore the door body can not the rapid movement, can not bring danger for the person that closes the door.