Single-fulcrum friction hinge

Abstract

The utility model relates to the technical field of building door and window hardware, in particular to a single-fulcrum friction hinge, which is characterized in that a frame part comprises a sliding chute fixedly connected on a window frame section bar, a sash part comprises a support arm fixedly connected on a sash section bar, a sliding block is connected on the sliding chute in a sliding manner, and one end of a short suspension and one end of a middle suspension are hinged on the sliding block; the other end of the short suspension is hinged to one end of the corbel, the other end of the middle suspension is hinged to the middle of the long suspension, one end of the long suspension is hinged to the middle of the corbel, and the other end of the long suspension is hinged to the sliding groove. The structure of the C-groove aluminum alloy door and window profile is matched with the European standard C-groove aluminum alloy door and window profile, the C-groove aluminum alloy door and window profile is reliable in structure, large in bearing capacity and stable in mechanical property, the sliding friction force is adjusted through the fastening screws, and the user experience of doors and windows is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building door and window hardware, in particular to a single-point friction hinge. Background Art

[0002] With the development of modern technology, in the door and window hardware industry, due to the increase and widening of profile sections, and the addition and thickening of door and window glass, the friction hinges of ordinary structures cannot meet the load-bearing requirements. Therefore, it is necessary to design a new type of connecting rod structure while ensuring the specifications, so as to increase the load-bearing performance of the friction hinge and better solve practical problems. Utility Model Content

[0003] In order to make up for the deficiencies in the prior art, the utility model provides a single-support point friction hinge.

[0004] A single-point friction hinge includes a frame component and a sash component, the frame component includes a slide groove fixedly connected to the window frame profile, the sash component includes a support arm fixedly connected to the window sash profile, a slider is slidably connected to the slide groove, one end of the short suspension and one end of the middle suspension are hinged on the slider, the other end of the short suspension is hinged to one end of the support arm, the other end of the middle suspension is hinged to the middle part of the long suspension, one end of the long suspension is hinged to the middle part of the support arm, and the other end of the long suspension is hinged to the slide groove.

[0005] Furthermore, in order to better implement the present invention, one end of the slide is fixedly connected with a wrap angle, and the wrap angle is used to install the slide on the window frame profile to play a positioning role.

[0006] Furthermore, in order to better implement the present invention, a positioning device is protruded above one end of the support arm, and the positioning device contacts the edge of the window sash profile when the support arm is installed on the window sash profile.

[0007] Furthermore, in order to better realize the present invention, a positioning block is detachably connected to the slide groove, and the positioning block is located on one side of the slider. The slider is provided with a set screw, and the sliding friction force can be adjusted by the screw.

[0008] Furthermore, in order to better realize the present invention, one end of the slide is provided with a bulge and a mounting hole, and the long-hanging end is hinged by adjusting the rivet.

[0009] Furthermore, in order to better implement the present invention, one end of the middle suspension and one end of the short suspension are superimposed and hinged to the slider through rivets.

[0010] Furthermore, in order to better implement the present invention, one end of the middle suspension is sleeved with an anti-wear sleeve and then hinged to the middle part of the long suspension.

[0011] The beneficial effects of the utility model are:

[0012] The structure of this utility model is adapted to European standard C-groove aluminum alloy door and window profiles. It has a reliable structure, large load-bearing capacity, stable mechanical properties, and can adjust the sliding friction force by tightening screws, greatly improving the user experience of doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the installation of the frame components of the present invention;

[0015] Figure 3 This is a schematic diagram of the installation of the fan component of the present invention;

[0016] Figure 4 This is an axonometric drawing of the present utility model;

[0017] Figure 5 It is a partial schematic diagram of a single fulcrum of the utility model.

[0018] In the figure,

[0019] 1. Slide, 2. Wrap angle, 3. Support arm, 4. Long overhang, 5. Middle overhang, 6. Short overhang, 7. Slider, 8. Positioning block, 9. Adjustment rivet, 10. Anti-wear sleeve, 11. Rivet. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0022] Figure 1-Figure 5 This is a specific embodiment of the present invention, which is a single-point friction hinge.

[0023] The chute 1, angled corners 2, and positioning blocks 8 form the frame mounting assembly. The angled corners 2 are positioned in the notches on the frame profile. The frame's underside is secured to the chute 1 with self-tapping screws through the mounting holes in the chute 1. The bracket arm 3 has a raised front end that serves as a positioning mechanism during sash installation. The bracket arm 1 is designed to fit into the sash slot and is secured with self-tapping screws.

[0024] One end of the long overhang 4 is fixed to the tail end of the C-shaped slide 1 by adjusting the rivet 9, and the tail end of the slide 1 is bulged for easy riveting, and the long overhang 4 and the slide 1 can rotate freely through the rivet axis; the other end of the long overhang 4 is connected to the middle position of the support arm 3 by a rivet 11, and the two can rotate; one end of the middle overhang 5 and the short overhang 6 are superimposed and connected to the metal slider 7 by rivets 11. Grooves are designed on both sides of the metal slider 7, which can slide freely along the C-shaped slide wall, and a set screw is designed on the slider 7, and the sliding friction force can be adjusted by the screws; the other end of the short overhang 6 is connected to one end of the support arm 3 by a rivet 11, and the two can rotate freely. The connection end of the support arm 3 is designed with a raised positioning device for easy installation and positioning; the other end of the middle overhang 5 is connected to the middle hole of the long overhang 4 by a rivet 11, and the two can rotate freely; the bottom plate of the slide 1 is designed with bulging and mounting holes, which are convenient for fixing to the window frame profile by self-tapping screws.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A single-point friction hinge, comprising a frame component and a fan component, characterized in that: The frame component includes a slide groove (1) fixedly connected to the window frame profile, and the sash component includes a support arm (3) fixedly connected to the window sash profile. A slider (7) is slidably connected to the slide groove (1), and the slider (7) is hinged to one end of the short suspension (6) and one end of the middle suspension (5). The other end of the short suspension (6) is hinged to one end of the support arm (3), and the other end of the middle suspension (5) is hinged to the middle of the long suspension (4). One end of the long suspension (4) is hinged to the middle of the support arm (3), and the other end of the long suspension (4) is hinged to the slide groove (1).

2. The single-pivot friction hinge according to claim 1, characterized in that: One end of the slide groove (1) is fixedly connected to a wrap angle (2), and the wrap angle (2) is used to install the slide groove (1) on the window frame profile to play a positioning role.

3. The single-pivot friction hinge according to claim 1, characterized in that: A positioning device is protruded above one end of the support arm (3), and the positioning device contacts the edge of the window sash profile when the support arm (3) is mounted on the window sash profile.

4. The single-pivot friction hinge according to claim 1, characterized in that: A positioning block (8) is detachably connected to the slide groove (1), and the positioning block (8) is located on one side of the slider (7). The slider (7) is provided with a set screw, and the sliding friction force can be adjusted by the screw.

5. The single-pivot friction hinge according to claim 1, characterized in that: One end of the slideway (1) is provided with a bulge and a mounting hole, and one end of the long overhang (4) is hinged by adjusting the rivet (9).

6. The single-pivot friction hinge according to claim 1, characterized in that: One end of the middle suspension (5) and one end of the short suspension (6) are superimposed and hinged to the slider (7) via a rivet (11).

7. The single-pivot friction hinge according to claim 1, characterized in that: One end of the middle suspension (5) is sleeved with an anti-wear sleeve (10) and then hinged to the middle of the long suspension (4).

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