Reversely-installed hidden hinge

Abstract

The utility model relates to a reversely-installed hidden hinge which is used for installing doors and windows 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 small when the door and the window are opened and closed.

Description

Technical Field

[0001] This utility model relates to a reverse-mounted concealed hinge, specifically a hinge that can be concealed on the door panel and door frame, enabling the door to open and close in a reflective manner. Background Technology

[0002] Currently, most door and window hinges on the market are designed for forward opening and closing. If they are installed in reverse, the gap between the door and window opening and closing will be very large. In addition, the load-bearing capacity of the hinge arm is entirely borne by the hinge when the door or window is opened or closed. This means that if the door or window is installed in reverse, the hinge will not be able to bear the load. Utility Model Content

[0003] The purpose of this utility model is to provide a reverse-mounted concealed hinge, which connects the chain head and chain seat in sequence through the front arm, middle arm and rear arm, so that when the hinge is opened and closed, one end of the chain seat is inserted into both ends of the chain head, which distributes the load of the chain arm and makes the gap of the hinge very small after opening and closing, making its operation more stable and aesthetically pleasing.

[0004] The technical solution of this utility model is based on a chain head, chain seat, buffer, torsion spring, front arm, middle arm, rear arm, first shaft, second shaft, third shaft, fourth shaft, fifth shaft, sixth shaft, seventh shaft, and eighth shaft. Its features include: the right end of the chain head is hinged to the left end of the front arm via the first shaft; the right end of the front arm is hinged to the left end of the chain seat via the third shaft; the left end of the middle arm extends to the lower middle of the front arm and is hinged to the right end of the chain head via the second shaft; the middle of the middle arm is hinged to the left end of the chain seat via the fourth shaft; the right end of the middle arm is hinged to the left end of the rear arm via the fifth shaft; the rear arm has an arc-shaped through-hole in the middle, and the rear arm is installed inside the chain seat through the sixth shaft passing through the through-hole; the right end of the rear arm is hinged to the telescopic rod of the buffer via the seventh shaft; and the outer shell of the buffer is hinged to the right end of the chain seat via the eighth shaft.

[0005] The forearm of this invention has an inwardly curved, concave shape at the bottom center, and the middle arm has a V-shaped bend. The hinge position of the third axis in the chain seat is higher than the hinge position of the fourth axis, and the hinge position of the second axis in the chain head is higher than the hinge position of the first axis. The strip-shaped 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. When the hinge is closed or open, the left end of the chain seat can be inserted into the left or right end of the square groove of the chain head.

[0006] The working principle of this utility model is that the chain head and chain seat are connected and installed in sequence through the forearm, middle arm and rear arm. After the guide of the arc-shaped concave in the middle of the bottom of the forearm and the arc-shaped curved strip through hole in the middle of the rear arm, one end of the chain seat is inserted into the two ends of the chain head when the hinge is opened and closed. This distributes the load of the chain arm and makes the gap of the hinge very small after opening and closing, making its operation more stable and beautiful.

[0007] The advantages of this utility model are simple structure, low manufacturing cost, stable operation, and 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 between the door and window is very small when the door and window are open or closed. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the door panel in the open state of the present invention.

[0009] Figure 2 This is a schematic diagram of the structure of the door panel in the closed state of this utility model.

[0010] Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model;

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

[0012] Figure 5 This is another cross-sectional perspective view of the three-dimensional structure of this utility model. Detailed Implementation

[0013] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, in the implementation method, the left, right, front, back, up, and down directions are related to... Figure 4For reference, this utility model is used to install a door 1 on a door frame 2 in a reverse 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 hinged to the left end of the front arm 7 via the first shaft 10.1, the right end of the front arm 7 is hinged to the left end of the chain seat 4 via the third shaft 10.3, and the left end of the middle arm 8 extends... The lower part of the forearm 7 is hinged to the right end of the chain head 3 via the second shaft 10.2. The middle part of the middle arm 8 is hinged to the left end of the chain seat 4 via the fourth shaft 10.4. The right end of the middle arm 8 is hinged to the left end of the rear arm 9 via the fifth shaft 10.5. The middle part of the rear arm 9 is provided with an arc-shaped through hole. The rear arm 9 is installed in the chain seat 4 through the middle through hole via the sixth shaft 10.6. The right end of the rear arm 9 is hinged to the telescopic rod of the buffer 5 via the seventh shaft 10.7. The outer shell of the buffer 5 is hinged to the right end of the chain seat 4 via the eighth shaft 10.8. The forearm 7 has an inwardly curved arc at the bottom center, the middle arm 8 has a V-shaped bend, the hinge position of the third axis 10.3 in the chain seat 4 is higher than the hinge position of the fourth axis 10.4, the hinge position of the second axis 10.2 in the chain head 3 is higher than the hinge position of the first axis 10.1, the strip-shaped through hole of the rear arm 9 is curved from left to right and from top to bottom, and the top of the chain head 3 is a semi-closed square groove, so that when the hinge is closed or open, the left end of the chain seat 4 can be inserted into the left or right end of the square groove of the chain head 3.

Claims

1. A reverse-mounted concealed hinge, which is installed on the door frame to open and close the door in the opposite direction, includes a chain head, chain seat, buffer, torsion spring, front arm, middle arm, rear arm, first axis, second axis, third axis, fourth axis, fifth axis, sixth axis, seventh axis, and eighth axis, characterized in that... The right end of the chain head is hinged to the left end of the forearm via the first axis. The right end of the forearm is hinged to the left end of the chain seat via the third axis. The left end of the middle arm extends to the bottom of the forearm and is hinged to the right end of the chain head via the second axis. The middle of the middle arm is hinged to the left end of the chain seat via the fourth axis. The right end of the middle arm is hinged to the left end of the rear arm via the fifth axis. The middle of the rear arm has an arc-shaped through hole. The rear arm passes through the middle through hole via the sixth axis and is installed in the chain seat. The right end of the rear arm is hinged to the telescopic rod of the buffer via the seventh axis. The outer shell of the buffer is hinged to the right end of the chain seat via the eighth axis.

2. The reverse-mounted concealed hinge according to claim 1, characterized in that, The forearm has an inwardly curved arc at the bottom center, the middle arm has a V-shaped bend, 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-shaped through hole of the rear arm is curved from left to right and from top to bottom, and the top of the chain head is a semi-closed square groove, so that when the hinge is closed or open, the left end of the chain seat can be inserted into the left or right end of the square groove of the chain head.

Images