Inward-opening and inward-reversing 90-degree invisible hinge lower connecting piece

Abstract

The utility model discloses a lower connecting piece of an inward-opening and inward-reversing 90-degree invisible hinge. The lower connecting piece comprises a base, a positioning groove and a second fixing shaft. The surface of the base is rotationally connected with a rotating block, the surface of the rotating block is connected with a positioning shaft, and a stretching arm is arranged on the surface of the positioning shaft; a first fixing shaft is arranged on the surface of the rotating block, and the first fixing shaft is slidably connected into the positioning groove; under rotation of the rotating block, the first fixing shaft on the surface of the rotating block can slide in the positioning groove in the surface of the base, so that movement of the stretching arm is limited, stability is improved, the stretching arm can be better stressed and can bear larger weight, and meanwhile a window can be closed more closely and smoothly; through the sector adjusting holes in the sector adjusting blocks on the surface of the fixing seat, timely adjustment can be made according to different conditions or environments during installation, so that stress can be balanced when the hinge is pushed and pulled during use, the flexibility is high, more time and labor are saved, and a stable effect on connection of a window can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a lower connecting piece of an invisible hinge which opens and tilts inwards by 90 degrees. Background Art

[0002] Invisible hinges are devices used to connect window frames and window sashes to achieve window sash rotation and are widely used to fix windows. And because they are hidden in the window frame, the entire window looks beautiful without damaging the sealing strips, ensuring the integrity and sealing of the window sash, and are recognized in the market.

[0003] In most existing invisible hinges for doors and windows, the mounting base and the bottom plate usually have 90-degree and 180-degree openings; however, since most hinges are fixed, and the hinges cannot be adjusted, they may not meet the requirements of specific scenes or environments. As a result, some doors and windows need to stay at a specific angle, and the non-adjustable hinges may not provide the required flexibility, resulting in an unstable connection between the hinges and the doors and windows. In view of this, we have introduced a 90-degree inward-opening and inward-tilting invisible hinge lower connector. Utility Model Content

[0004] The purpose of the utility model is to provide a 90-degree inward-opening and inward-tilting invisible hinge lower connecting piece to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a 90-degree inward-opening and inverted invisible hinge lower connector, comprising: a base, a positioning groove and a second fixed axis;

[0006] The surface of the base is rotatably connected with a rotating block, the surface of the rotating block is connected with a positioning shaft, the surface of the positioning shaft is provided with a stretching arm, and one end of the stretching arm is rotated on the surface of the rotating block through the setting of the positioning shaft, thereby pushing the rotating block to move;

[0007] A first fixed shaft is disposed on the surface of the rotating block, and the first fixed shaft is slidably connected to the inside of the positioning groove, and the positioning groove is provided on the surface of the base, and when the rotating block rotates, the first fixed shaft can be slidably connected to the inside of the positioning groove;

[0008] The second fixed shaft passes through the rotating block and the base, and the setting of the second fixed shaft allows the rotating block to rotate on the surface of the base. One end of the stretching arm is hinged with a fixed seat, and the surface of the fixed seat is provided with a fan adjustment block, and a fan adjustment hole is opened inside the fan adjustment block, and the fan adjustment hole and the fan adjustment block are integrally formed. A first connecting rod is hinged on the surface of the stretching arm, and a first rotating rod is connected between the stretching arm and the first connecting rod. A second connecting rod is hinged on the surface of the first connecting rod, and a second rotating rod is connected between the first connecting rod and the second connecting rod. One end of the second connecting rod is hinged with a telescopic arm, and a third rotating rod is connected between the second connecting rod and the telescopic arm.

[0009] Preferably, the other end of the first connecting rod is hinged to the surface of the base, the first connecting rod and the base are connected via a rotating shaft, and the second connecting rod is hinged to the telescopic arm and the fixed seat via a third fixed shaft.

[0010] Preferably, a first fixing hole is provided on one side of the base, and the first fixing hole and the base are integrally formed, and the first fixing hole is convenient for bolts to be screwed in to fix the base. A second fixing hole is provided on the other side of the base, and the second fixing hole and the base are integrally formed, and the second fixing hole is convenient for bolts to be screwed in to fix the base, so that the base is fixed more firmly.

[0011] Preferably, a groove fixing screw hole is opened on the surface of the base, and the groove fixing screw hole and the base are integrally formed, and a screw can be screwed into the groove fixing screw hole, and the base can be fixed after the screw passes through the groove fixing screw hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model drives the stretching arm to move through the fixed seat, and the stretching arm drives the rotating block through the positioning shaft to rotate on the surface of the base through the second fixed shaft, so that when the rotating block rotates, the first fixed shaft on the surface of the rotating block slides in the positioning groove on the surface of the base, thereby limiting the movement of the stretching arm and improving stability. When the rotating block rotates, it can be better stressed and can also bear a greater weight, and at the same time, the window can be closed more closely and smoothly;

[0013] Through the fan adjustment holes inside the fan adjustment block on the surface of the fixed seat, timely adjustments can be made according to different situations or environments during installation, and it can stay at a specific angle so that the hinge can be pushed and pulled to balance the force when in use. It has high flexibility, saves time and effort, and can stabilize the connection of the window. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0015] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle.

[0016] In the figure: 1. fixed seat; 2. third fixed axis; 3. fan adjustment hole; 4. second connecting rod; 5. first connecting rod; 6. second fixed hole; 7. positioning axis; 8. first fixed axis; 9. positioning groove; 10. second fixed axis; 11. rotating block; 12. base; 13. first fixed hole; 14. groove fixing screw hole; 15. telescopic arm; 16. stretching arm; 17. fan adjustment block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 The utility model provides a technical solution: a 90-degree inward-opening and inverted invisible hinge lower connector, comprising: a base 12, the surface of the base 12 is rotatably connected to a rotating block 11, the surface of the rotating block 11 is connected to a positioning shaft 7, the surface of the positioning shaft 7 is provided with a stretching arm 16, one end of the stretching arm 16 will rotate on the surface of the rotating block 11 through the positioning shaft 7, thereby pushing the rotating block 11 to move;

[0019] The first fixed shaft 8 is provided on the surface of the rotatable block 11, and the first fixed shaft 8 is slidably connected to the inside of the locating groove 9. The locating groove 9 is provided on the surface of the base 12, and the rotatable block 11 is rotated so that the first fixed shaft 8 can be slidably connected to the inside of the locating groove 9;

[0020] A second fixed shaft 10, the second fixed shaft 10 passes through the rotating block 11 and the base 12, the setting of the second fixed shaft 10 allows the rotating block 11 to rotate on the surface of the base 12, one end of the stretching arm 16 is hinged with a fixed seat 1, the surface of the fixed seat 1 is provided with a fan adjustment block 17, the interior of the fan adjustment block 17 is provided with a fan adjustment hole 3, the fan adjustment hole 3 and the fan adjustment block 17 are integrally formed, the surface of the stretching arm 16 is hinged with a first connecting rod 5, a first rotating rod is connected between the stretching arm 16 and the first connecting rod 5, the surface of the first connecting rod 5 is hinged with a second connecting rod 4, a second rotating rod is connected between the first connecting rod 5 and the second connecting rod 4, one end of the second connecting rod 4 is hinged with a telescopic arm 15, and a third rotating rod is connected between the second connecting rod 4 and the telescopic arm 15.

[0021] The other end of the first connecting rod 5 is hinged to the surface of the base 12 , and the first connecting rod 5 is connected to the base 12 via a rotating shaft. The second connecting rod 4 is hinged to the telescopic arm 15 and the fixed seat 1 via a third fixed shaft 2 .

[0022] A first fixing hole 13 is provided on one side of the base 12, and the first fixing hole 13 and the base 12 are integrally formed, and the first fixing hole 13 is convenient for bolts to be screwed in to fix the base 12. A second fixing hole 6 is provided on the other side of the base 12, and the second fixing hole 6 and the base 12 are integrally formed, and the second fixing hole 6 is convenient for bolts to be screwed in to fix the base 12, so that the base 12 is fixed more firmly.

[0023] A groove fixing screw hole 14 is provided on the surface of the base 12 , and the groove fixing screw hole 14 and the base 12 are integrally formed, and a screw can be screwed into the groove fixing screw hole 14 , and the base 12 can be fixed after the screw passes through the groove fixing screw hole 14 .

[0024] Specifically, when in use, the fixed seat 1 and the telescopic arm 15 are pushed to fix the seat 1, and the stretching arm 16 is driven to move through the fixed seat 1. When the stretching arm 16 moves, the stretching arm 16 drives the rotating block 11 to rotate on the surface of the base 12 through the second fixed axis 10 through the positioning axis 7. At the same time, the fixed seat 1 and the telescopic arm 15 will drive the second connecting rod 4 to rotate through the third fixed axis 2, and the second connecting rod 4 will drive the first connecting rod 5 to rotate on the surface of the base 12 when it rotates. As a result, when the rotating block 11 rotates, the first fixed axis 8 on the surface of the rotating block 11 will slide in the positioning groove 9 on the surface of the base 12, thereby limiting the movement of the stretching arm 16 and improving stability. When the rotating block 11 rotates, it can be better stressed and can withstand greater weight, and at the same time, the window can be closed more closely and smoothly.

[0025] Through the fan adjustment hole 3 inside the fan adjustment block 17 on the surface of the fixing seat 1, timely adjustments can be made according to different situations or environments during installation, so that the hinge can be pushed and pulled in a balanced force when in use, with high flexibility, saving time and effort, and stabilizing the connection of the window.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 90-degree inward-opening and inward-tilting invisible hinge lower connector, characterized in that: include: A base (12), the surface of the base (12) being rotatably connected to a rotating block (11), the surface of the rotating block (11) being connected to a positioning shaft (7), and the surface of the positioning shaft (7) being provided with a stretching arm (16); A positioning groove (9), a surface of the rotating block (11) is provided with a first fixed shaft (8), and the first fixed shaft (8) is slidably connected inside the positioning groove (9); A second fixed shaft (10), the second fixed shaft (10) passes through the rotating block (11) and the base (12), one end of the stretching arm (16) is hinged to a fixed seat (1), a surface of the fixed seat (1) is provided with a fan adjustment block (17), a fan adjustment hole (3) is provided inside the fan adjustment block (17), a surface of the stretching arm (16) is hinged to a first connecting rod (5), a surface of the first connecting rod (5) is hinged to a second connecting rod (4), and one end of the second connecting rod (4) is hinged to a telescopic arm (15).

2. The 90-degree inward-opening and inward-tilting invisible hinge lower connector according to claim 1, characterized in that: The other end of the first connecting rod (5) is hinged on the surface of the base (12), and the second connecting rod (4) is hinged to the telescopic arm (15) and the fixed seat (1) via a third fixed shaft (2).

3. The 90-degree inward-opening and inward-tilting invisible hinge lower connector according to claim 1, characterized in that: A first fixing hole (13) is provided on one side of the base (12), and a second fixing hole (6) is provided on the other side of the base (12).

4. The 90-degree inward-opening and inward-tilting invisible hinge lower connector according to claim 1, characterized in that: A groove fixing screw hole (14) is provided on the surface of the base (12).

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