Background
The hinge as a connecting piece has the characteristics of firm connection and convenient use, and is widely applied to mechanical products and daily necessities; the hinge among the prior art is of a lot of kinds, especially in recent years, along with the rapid development of door industry, is applied to the hinge of door body connection and constantly emerges new technology, like chinese patent a novel hidden hinge, the application number is: 200720091872.9, discloses including hiding casing and rotation connecting piece, its characterized in that: the hinge also comprises a rotating shaft and a slideway locking plate; the slideway locking plate is provided with a positioning shaft hole and a slideway, an opening at one end of the slideway is communicated with the positioning shaft hole, and an opening at the other end of the slideway is arranged on one side of the slideway locking plate; the width of an opening of the slide way communicated with the positioning shaft hole is smaller than the diameter of the positioning shaft hole; an upper slideway locking plate and a lower slideway locking plate are fixed in the hidden shell; the rotating shaft comprises a main shaft body, an upper end part and a lower end part, wherein the upper end diameter of the upper end part is larger than the lower end diameter of the upper end part, and the upper end diameter of the lower end part is larger than the lower end diameter of the lower end part; the upper end part and the lower end part of the rotating shaft are respectively arranged in positioning shaft holes of the upper slideway lock position plate and the lower slideway lock position plate; one end of the rotating connecting piece is fixedly connected to the side surface of the main shaft body of the rotating shaft;
the above structure has drawbacks in that: after the installation, the hinge is connected with the door body through a fixed screw hole, and cannot be adjusted; and the door body does not have angle opening positioning structure, when opening, is closed by external factors such as wind easily, causes the puzzlement.
Disclosure of Invention
The present invention is directed to a blind hinge capable of being adjusted and positioned, so as to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a but blind hinge of positioning adjustment, includes and door frame fixed connection's mounting bracket, still includes the axis of rotation of connecting on the mounting bracket to and the rotation connecting piece of being connected with the axis of rotation, the other end and the door body of rotation connecting piece are connected through adjustable coupling assembling, be formed with the hidden storehouse that is used for holding the rotation connecting piece on the mounting bracket, still including door body angle positioning component, through door leaf that door body angle positioning component will open is positioned a preset angle, only when applying a great external force, just can close the door leaf, thereby prevents that the door body from closing because of the external factor is abnormal.
Preferably, the mounting bracket comprises two connecting lugs which are arranged up and down, the two connecting lugs are respectively and vertically connected with a connecting plate, and the rotating shaft is connected between the two connecting plates.
Preferably, a rotating shaft connecting part extends from the connecting plate, and the rotating shaft is connected with the rotating shaft connecting part.
Preferably, the connecting plate is of a fan-shaped structure.
Preferably, door body angle locating component includes elastic positioning element, be formed with the joint groove on the rotation connecting piece, elastic positioning element joint in the joint inslot is in order to make door leaf and door frame form a preset angle.
Preferably, the elastic positioning piece comprises an articulated shaft and a blocking plate, one end of the blocking plate is sleeved on the articulated shaft, torsion springs are arranged at the upper end and the lower end of the blocking plate respectively, one end of each torsion spring is connected with the blocking plate, and the other end of each torsion spring is connected to a connecting lug of the mounting frame.
Preferably, the other end of the barrier plate is formed with a cylindrical clamping portion.
Preferably, the adjustable connecting assembly comprises an installation cavity arranged on the door leaf, the opening caliber of the installation cavity is gradually reduced from outside to inside, a fixed pin shaft is arranged on the side wall of the installation cavity, a limiting groove is arranged at the tail end of the corresponding rotating connecting piece, and the adjustable connecting assembly further comprises a fixed block, and the end part of the transmission connecting piece is tightly pressed in the installation cavity through the fixed block.
Preferably, an adjusting gap is formed between the periphery of the fixed pin shaft and the inner wall of the limiting groove.
Preferably, the cross section of the mounting cavity is in a trapezoidal structure.
Preferably, the fixing block is connected with the mounting cavity through a bolt.
Preferably, the installation cavity is formed by an independent connecting piece, and the connecting piece is connected with the door leaf in a welding mode.
The door body angle positioning component can seal the hinge hole of the door frame while positioning, so that a more attractive effect is achieved; can dismantle each other between each subassembly of this application product, the later stage of being convenient for is changed.
Compared with the prior art, the invention has the beneficial effects that:
the hinge and the door leaf are connected through the adjustable connecting assembly, so that fine adjustment can be conveniently performed on each direction of the door body during installation, and the door leaf can be conveniently and accurately installed; the structure is simple, the installation is convenient, and the connection strength is high after the connection; the door leaf opening device is provided with a door body angle positioning component, the door leaf opened by the door body angle positioning component is positioned at a preset angle, and the door leaf can be closed only when a large external force is applied, so that the door body is prevented from being abnormally closed due to external factors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a hidden hinge capable of being positioned and adjusted as shown in figures 1-3, which comprises an installation frame 1 fixedly connected with a door frame, a rotating shaft 2 connected to the installation frame, and a rotating connecting piece 3 connected with the rotating shaft 2, wherein the other end of the rotating connecting piece 3 is connected with a door body through an adjustable connecting assembly 4, a hidden bin 5 for containing the rotating connecting piece is formed on the installation frame, the hidden hinge also comprises a door body angle positioning assembly, an opened door leaf is positioned at a preset angle through the door body angle positioning assembly, and the door leaf can be closed only when a large external force is applied, so that the door body is prevented from being abnormally closed due to external factors.
The mounting bracket includes two engaging lugs 6 of range from top to bottom, two the engaging lug is connected with a connecting plate 7 respectively perpendicularly, and rotation axis connection is in two between the connecting plate 7, extend a rotation axis connecting portion 8 on the connecting plate, the rotation axis is connected with rotation axis connecting portion, and the connecting plate is fan-shaped structure.
Door body angular positioning subassembly includes elastic positioning element 9, be formed with joint groove 10 on the rotation connecting piece, the elastic positioning element joint in the joint inslot is in order to make door leaf and door frame form one and predetermine the angle, and elastic positioning element includes articulated shaft 11 and baffler 12, the one end of baffler cup joint in on the articulated shaft, just be provided with torsional spring 13 on the upper and lower both ends of baffler respectively, the one end and the baffler of torsional spring are connected, and the other end is connected on the engaging lug of mounting bracket, the other end of baffler is formed with cylindricality joint portion.
The adjustable connecting assembly comprises an installation cavity 14 arranged on the door leaf, the opening caliber of the installation cavity is gradually reduced from outside to inside, a fixed pin shaft 15 is arranged on the side wall of the installation cavity, a limiting groove 16 is arranged at the tail end of a corresponding rotating connecting piece, the adjustable connecting assembly further comprises a fixed block 17, the fixed block is arranged in the installation cavity, the end part of a transmission connecting piece is tightly pressed in the installation cavity, an adjusting gap 18 is formed between the periphery of the fixed pin shaft and the inner wall of the limiting groove, the cross section of the installation cavity is of a trapezoidal structure, the fixed block and the installation cavity are connected through bolts, and the installation cavity, the connecting piece and the door leaf are connected in a welded.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.