Anti-pinch door hinge

Abstract

The utility model provides a prevent hand door hinge from clamping, prevent hand door hinge, it includes: fixed base, hinged axle seat, hinged axle and drive mechanism, one end of fixed base is provided as biasing arc, is equipped with the hinged axle seat that is connected into an organic whole on the biasing arc end face, is equipped with the hinged axle in hinged axle seat hole, the hinged axle is driven its axial movement through drive mechanism, is equipped with the mounting screw hole on fixed base. The utility model solves the technical problem that the existing conventional door hinge cannot be used on the novel prevent hand door, adopts built -in hidden design, and installation is simple, and it is firm and durable.

Description

Technical Field

[0001] This utility model belongs to the field of anti-pinch door control hardware technology, specifically relating to an anti-pinch door hinge. Background Technology

[0002] With economic growth and improved living standards, people have increasingly higher demands for the safety, durability, and overall aesthetics of their doors. Traditional hinged doors often have a large gap between the door leaf and the frame when opening and closing, which can lead to accidental pinching of children's and elderly people's fingers. Due to the unreasonable design of traditional structures, this problem remains unsolved. A new type of anti-pinch door can completely solve this technical problem, but existing hinges are not suitable. Therefore, designing a special anti-pinch door hinge to improve home safety is urgent and important. Utility Model Content

[0003] This utility model provides an anti-pinch door hinge to address the shortcomings of existing door hinge technology, including the defects and safety hazards mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an anti-pinch door hinge, comprising: a fixed base, a hinge shaft seat, a hinge shaft, and a driving mechanism. One end of the fixed base is provided with an offset arc shape, and the offset arc-shaped end face is provided with an integrally connected hinge shaft seat. The hinge shaft is provided in the hole of the hinge shaft seat, and the hinge shaft is driven to move axially by the driving mechanism. The fixed base is provided with mounting screw holes.

[0005] The drive mechanism is rotary. The rounded rectangular hinge shaft is driven to move axially by a pair of bevel gears. The passive bevel gear is located at the upper end of the hinge shaft seat. The passive bevel gear is equipped with an integral lead screw. The lead screw is connected to the nut inside the rounded rectangular hinge shaft. The driving bevel gear is equipped with an integral drive shaft. The drive shaft is located in the shaft hole behind the hinge shaft seat. The drive shaft is equipped with a limiting groove. The side of the hinge shaft seat is equipped with a limiting screw that matches the limiting groove. The outer end of the drive shaft is equipped with a slot for placing a rotating tool.

[0006] The drive mechanism is a rocker arm type. The cylindrical hinge shaft is driven to move axially through an offset rocker arm. The offset rocker arm is in the shape of a crank arm, and the centerline offset distance between the two ends of the offset rocker arm is 2-10mm. The offset rocker arm is supported by a pin in the shaft hole of the rocker arm seat. The front end arm of the offset rocker arm is connected by a hinge shaft.

[0007] The side slot of the seat is hinged to the side hole provided on the cylindrical hinge shaft, and the rear arm of the offset rocker arm is hinged to the annular groove of the drive screw.

[0008] The drive mechanism is a pull-type mechanism. The sector-shaped spline hinge shaft is driven to move axially by pulling the internal hexagon screw with a tool. The internal hexagon screw is connected to the sector-shaped spline hinge shaft through an elongated hole provided on the rear flange of the hinge shaft seat. The internal hexagon screw is provided with an anti-loosening washer.

[0009] The fixed base is stepped.

[0010] The fixed base is offset on an arc-shaped surface and has a short, thick tangible flange for mounting.

[0011] The hinge shaft is provided with a slot for storing lubricating oil.

[0012] The fixed base is provided with positioning screws at the offset rocker arm crank.

[0013] The hinge seat has a 1-5mm thick arc-shaped flange at the side groove.

[0014] The positive effects of this utility model are: the fixed base of the anti-pinch door hinge is designed as an offset arc shape, which is more suitable for use in anti-pinch doors. This solution solves the technical problem that existing traditional door hinges cannot be used on new anti-pinch doors. It adopts a built-in hidden design, which is easy to install and sturdy and durable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the rotary hinge structure of this utility model.

[0016] Figure 2 This is a top view of the rotary hinge structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the rocker arm hinge structure of this utility model.

[0018] Figure 4 This is a top view of the rocker arm hinge structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the pull-out hinge structure of this utility model.

[0020] Figure 6 This is a top view of the pull-out hinge structure of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Fixed base; 2. Hinge seat; 3. Hinge shaft; 4. Drive screw; 5. Offset rocker arm; 6. Long hole; 7. Limit screw; 8. Offset arc; 9. Drive shaft; 10. Passive bevel gear; 11. Active bevel gear; 12. Lead screw; 13. Positioning screw; 14. Anti-loosening washer; 15. Mounting screw hole; 16. Arc flange; 17. Socket head cap screw. Detailed Implementation

[0023] like Figure 1-6 As shown, an anti-pinch door hinge includes: a fixed base 1, a hinge seat 2, a hinge shaft 3, and a driving mechanism. One end of the fixed base 1 is provided as an offset arc 8, and the center line of the offset arc 8 is offset from the center line of the fixed base 1 by a distance of 2-15mm. The end face of the offset arc 8 is provided with an integral hinge seat 2, and the hinge shaft 3 is provided in the hole of the hinge seat 2. The hinge shaft 3 is driven to move axially by the driving mechanism. The fixed base 1 is provided with mounting screw holes 15.

[0024] like Figure 1-2 As shown, the driving mechanism is rotary. The rounded rectangular hinge shaft 3 is driven to move axially by a pair of bevel gears. The passive bevel gear 10 is set at the upper end of the hinge shaft seat 2. The passive bevel gear 10 is provided with an integral lead screw 12. The lead screw 12 is connected to the nut inside the rounded rectangular hinge shaft 3. The driving bevel gear 11 is provided with an integral drive shaft 9. The drive shaft 9 is set in the shaft hole behind the hinge shaft seat 2. The drive shaft 9 is provided with a limiting groove. The side of the hinge shaft seat 2 is provided with a limiting screw 7 that matches the limiting groove. The outer end of the drive shaft 9 is provided with a slot for placing a rotating tool.

[0025] like Figure 4-5 As shown, the driving mechanism is a rocker arm type. The cylindrical hinge shaft 3 is driven to move axially through the offset rocker arm 5. The offset rocker arm 5 is in the shape of a crank arm. The center line offset distance between the two arms of the offset rocker arm 5 is 2-10mm. The offset rocker arm 5 is supported by a pin in the shaft hole of the rocker arm seat. The front arm of the offset rocker arm 5 is hinged to the side hole provided on the cylindrical hinge shaft 3 through the side slot of the hinge shaft seat 2. The rear arm of the offset rocker arm 5 is hinged to the annular groove of the drive screw 4.

[0026] like Figure 5-6 As shown, the driving mechanism is a pull-type mechanism. The sector spline hinge shaft 3 is driven to move axially by pulling the internal hex screw 17 with a tool. The internal hex screw 17 is connected to the sector spline hinge shaft 3 through the elongated hole 6 provided on the rear flange of the hinge shaft seat 2. The internal hex screw 17 is provided with an anti-loosening washer 14.

[0027] The fixed base 1 is stepped.

[0028] The fixed base 1 has a short and thick tangible flange on its biased arc-shaped surface 8 for mounting.

[0029] The hinge shaft 3 is provided with a slot for storing lubricating oil.

[0030] The fixed base 1 is provided with a positioning screw 13 at the crank arm of the offset rocker arm 5.

[0031] The hinge seat 1 has a 1-5mm thick arc-shaped flange 16 at the groove on one side.

[0032] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. For those skilled in the art, several similar modifications, equivalent substitutions, splitting and merging and improvements can be made without departing from the inventive concept of the present invention, and all of these should be covered within the protection scope of the present invention.

Claims

1. An anti-pinch door hinge, characterized in that, include: The system comprises a fixed base, a hinge seat, a hinge shaft, and an offset rocker arm. One end of the fixed base is configured as an offset arc shape, and an integral hinge seat is provided on the end face of the offset arc shape. A hinge shaft is provided in the hole of the hinge seat, and the hinge shaft is driven to move axially by the offset rocker arm. The offset rocker arm is in the shape of a crank arm and is supported by a pin in the shaft hole of the rocker arm seat. The front arm of the offset rocker arm is hinged to the side hole provided on the hinge shaft through the side groove of the hinge seat, and the rear arm of the offset rocker arm is hinged to the annular groove of the drive screw. The fixed base is provided with mounting screw holes.

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