Reversely-installed hidden hinge

Abstract

The invention relates to a reversely-installed hidden hinge which is used for door and window installation and is characterized in that the right end of a chain head is hinged to the left end of a front arm through a first shaft, the right end of the front arm is hinged to the left end of a chain base through a third shaft, and the left end of a middle arm extends to the position below the middle of the bottom of the front arm and is hinged to the right end of the chain head through a second shaft; the middle of the middle arm is hinged to the left end of the chain base through a fourth shaft, the right end of the middle arm is hinged to the left end of the rear arm through a fifth shaft, an arc-shaped bent strip-shaped through hole is formed in the middle of the rear arm, the rear arm penetrates through the middle strip-shaped through hole through a sixth shaft to be installed in the chain base, and the right end of the rear arm is hinged to a telescopic rod of the buffer through a seventh shaft. A shell of the buffer is hinged to the right end of the chain base through an eighth shaft. The hinge has the advantages of being simple in structure, low in manufacturing cost, stable in work and convenient to install and maintain, the bearing capacity of the hinge can be effectively improved, meanwhile, the hinge is more suitable for reverse installation of a door and a window, and a gap is very small when the door and the window are opened and closed.

Description

Technical Field

[0001] The present invention relates to a reverse-mounted hidden hinge, specifically a hinge that can be hiddenly installed on a door panel and a door frame, enabling the door to open and close in a reflective manner. Background Art

[0002] Currently, the hinges for doors and windows on the market are all forward-opening and closing mounted hinges. If they are artificially installed in a special reverse manner, the gap generated during the opening and closing of the doors and windows will be very large. Moreover, when the forward-opening and closing mounted link is opened or closed, the load-bearing is completely borne by the hinge arm. This causes the bearing capacity of the hinge to be insufficient when the doors and windows are installed in reverse. Summary of the Invention

[0003] The purpose of the present invention is to provide a reverse-mounted hidden hinge. It connects the mounting link head and link seat through the forearm, middle arm, and rear arm in sequence. When the hinge opens and closes, one end of the link seat is respectively inserted into both ends of the link head, sharing the load-bearing of the link arm and making the gap very small after the hinge opens and closes, making its operation more stable and beautiful.

[0004] The technical solution of the present invention is based on the link head, link seat, buffer, torsion spring, forearm, middle arm, rear arm, first shaft, second shaft, third shaft, fourth shaft, fifth shaft, sixth shaft, seventh shaft, and eighth shaft. The feature is that the right end of the link head is hingedly installed with the left end of the forearm through the first shaft, the right end of the forearm is hingedly installed with the left end of the link seat through the third shaft, the left end of the middle arm extends to below the middle of the bottom of the forearm and is hingedly installed with the right end of the link head through the second shaft, the middle of the middle arm is hingedly installed with the left end of the link seat through the fourth shaft, the right end of the middle arm is hingedly installed with the left end of the rear arm through the fifth shaft, an arc-shaped curved strip-shaped through hole is provided in the middle of the rear arm, and the rear arm is installed in the link seat through the sixth shaft passing through the middle strip-shaped through hole. The right end of the rear arm is hingedly installed with the telescopic rod of the buffer through the seventh shaft, and the housing of the buffer is hingedly installed with the right end of the link seat through the eighth shaft.

[0005] In the present invention, the middle of the bottom of the forearm is arc-shaped and curved inwardly concave, the shape of the middle arm is V-shaped curved, the hinged position of the third shaft in the link seat is higher than that of the fourth shaft, the hinged position of the second shaft in the link head is higher than that of the first shaft, the strip-shaped through hole of the rear arm is arc-shaped and curved from top to bottom from left to right. The top of the link head is a semi-enclosed square groove. When the hinge is closed or opened, the left end of the link seat can be inserted into the left end or right end of the square groove of the link head.

[0006] The working principle of the present invention is that it connects the mounting link head and link seat through the forearm, middle arm, and rear arm in sequence. After being guided by the arc-shaped inward concave in the middle of the bottom of the forearm and the arc-shaped curved strip-shaped through hole in the middle of the rear arm, when the hinge opens and closes, one end of the link seat is respectively inserted into both ends of the link head, sharing the load-bearing of the link arm and making the gap very small after the hinge opens and closes, making its operation more stable and beautiful.

[0007] The advantages of the present invention are simple structure, low manufacturing cost, stable operation, convenient installation and maintenance. It can effectively improve the load-bearing capacity of the hinge, and at the same time make the hinge more suitable for reverse installation of doors and windows, and the gap is very small when the doors and windows are in the open and closed states. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of the present invention in the open state on the installed door panel;

[0009] Figure 2 is a schematic structural diagram of the present invention in the closed state on the installed door panel;

[0010] Figure 3 is a schematic three-dimensional overall structural diagram of the present invention;

[0011] Figure 4 is a schematic sectional three-dimensional structural diagram of the present invention;

[0012] Figure 5 is another schematic sectional three-dimensional structural diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 shown, the left, right, front, rear, up and down directions in the embodiment are the same as Figure 4For reference, the present invention is used to install the door 1 on the door frame 2 in a reversely opening and closing manner. Based on the chain head 3, chain seat 4, buffer 5, torsion spring 6, front arm 7, middle arm 8, rear arm 9, first shaft 10.1, second shaft 10.2, third shaft 10.3, fourth shaft 10.4, fifth shaft 10.5, sixth shaft 10.6, seventh shaft 10.7, and eighth shaft 10.8, the feature is that the right end of the chain head 3 is hingedly installed with the left end of the front arm 7 through the first shaft 10.1, the right end of the front arm 7 is hingedly installed with the left end of the chain seat 4 through the third shaft 10.3, the left end of the middle arm 8 extends to below the middle of the bottom of the front arm 7 and is hingedly installed with the right end of the chain head 3 through the second shaft 10.2, the middle of the middle arm 8 is hingedly installed with the left end of the chain seat 4 through the fourth shaft 10.4, the right end of the middle arm 8 is hingedly installed with the left end of the rear arm 9 through the fifth shaft 10.5, an arcuately curved strip-shaped through hole is provided in the middle of the rear arm 9, and the rear arm 9 is installed in the chain seat 4 through the sixth shaft 10.6 passing through the middle strip-shaped through hole. The right end of the rear arm 9 is hingedly installed with the telescopic rod of the buffer 5 through the seventh shaft 10.7, and the housing of the buffer 5 is hingedly installed with the right end of the chain seat 4 through the eighth shaft 10.8. The middle of the bottom of the front arm 7 is arcuately curved and concave inward, the shape of the middle arm 8 is V-shaped curved, the hinged position of the third shaft 10.3 in the chain seat 4 is higher than the hinged position of the fourth shaft 10.4, the hinged position of the second shaft 10.2 in the chain head 3 is higher than the hinged position of the first shaft 10.1, the strip-shaped through hole of the rear arm 9 is arcuately curved from top to bottom from left to right, and the top of the chain head 3 is a semi-enclosed square groove. When the hinge is closed or opened, the left end of the chain seat 4 can be inserted into the left end or right end of the square groove of the chain head 3.

Claims

1. A reverse hidden hinge, which is used to install the door on the door frame in a reverse opening and closing manner, comprises a chain head, a chain seat, a buffer, a torsion spring, a front arm, a middle arm, a rear arm, a first axis, a second axis, a third axis, a fourth axis, a fifth axis, a sixth axis, a seventh axis and an eighth axis, and is characterized in that: The right end of the chain head is hinged to the left end of the forearm through the first axis, the right end of the forearm is hinged to the left end of the chain seat through the third axis, the left end of the middle arm extends to the bottom middle of the forearm and is hinged to the right end of the chain head through the second axis, the middle of the middle arm is hinged to the left end of the chain seat through the fourth axis, the right end of the middle arm is hinged to the left end of the rear arm through the fifth axis, an arc-shaped strip through hole is provided in the middle of the rear arm, the rear arm is installed in the chain seat through the sixth axis and the middle strip through hole, the right end of the rear arm is hinged to the telescopic rod of the buffer through the seventh axis, and the outer shell of the buffer is hinged to the right end of the chain seat through the eighth axis.

2. The reverse-installed hidden hinge according to claim 1, characterized in that: The middle part of the bottom of the forearm is curved inward, the middle arm is V-shaped, the hinge position of the third axis in the chain seat is higher than the hinge position of the fourth axis, the hinge position of the second axis in the chain head is higher than the hinge position of the first axis, the strip through hole of the rear arm is curved from left to right and from top to bottom, the top of the chain head is a semi-closed square groove, and the left end of the chain seat can be inserted into the left or right end of the square groove of the chain head when the hinge is closed or opened.

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