Door and window hinge with anti-loose sliding block

Abstract

The door and window hinge comprises a bottom groove, the bottom groove is connected with the sliding block in a sliding mode, the sliding face of the sliding block and the bottom groove is a sliding face, a plurality of flexible protrusions are arranged on the sliding face, and the maximum distance between the two sliding faces of the sliding block is 102%-105% of the inner diameter of the bottom groove. The door and window hinge with the anti-loosening sliding block can automatically adjust the matching relation between the sliding block and the bottom groove.

Description

Technical Field

[0001] The utility model relates to the field of doors and windows, in particular to a door and window hinge with an anti-loosening sliding block. Background Art

[0002] Door and window hinges are devices that allow doors and windows to open or close by rotating along a designed trajectory. As people's living standards improve, their expectations for doors and windows are no longer satisfied with simple opening and closing. Instead, they want doors and windows that can be opened or closed at multiple angles and positions based on their needs, thereby improving their quality of life.

[0003] In order to enable the door and window hinges to have the above-mentioned functions, a fixed bottom groove is usually set in the existing design, and a slider is slidably set in the bottom groove, and then a number of connecting rods are hinged to each other to form a connecting part. One side of the connecting part is rotatably connected to the bottom groove or the slider, and the other side of the connecting part is rotatably connected to the door and window. By changing the position of the slider, the limit conditions of the door and window can be changed, thereby realizing the function of multi-angle and multi-position rotation according to needs.

[0004] However, existing door and window hinges also have the following problems: the matching relationship between the slider and the bottom groove is difficult to design. If the slider and the bottom groove are designed to be a clearance fit, the slider is likely to move during use, resulting in the door and window being unable to be positioned when opened; if the slider and the bottom groove are designed to be an interference fit, it is difficult for the user to adjust the position of the slider, that is, it is difficult to adjust the opening angle and working position of the door and window; if the slider and the bottom groove are designed to be a clearance fit, this requires very high processing accuracy of the slider and the bottom groove, which makes the cost of the door and window hinge very high, which is not conducive to the competitiveness of the product. Summary of the Invention

[0005] Purpose of the utility model: The purpose of the utility model is to provide a door and window hinge with an anti-loosening slider that can automatically adjust the matching relationship between the slider and the bottom groove.

[0006] Technical solution: The utility model relates to a door and window hinge with an anti-loosening slider, comprising a bottom groove, which is slidably connected to the slider, the surface on which the slider slides with the bottom groove being a sliding surface, a plurality of flexible protrusions being arranged on the sliding surface, and the maximum distance between the two sliding surfaces of the slider is 102% to 105% of the inner diameter of the bottom groove.

[0007] Furthermore, the flexible protrusion is provided with a shrinkage through hole on a side away from the inner wall of the bottom groove.

[0008] Furthermore, any sliding surface of the slider and the bottom groove is provided with a plurality of flexible protrusions, and the maximum distance from the flexible protrusion to the sliding surface without the flexible protrusion is 102% to 105% of the inner diameter of the bottom groove.

[0009] Furthermore, the two sliding surfaces of the slider and the bottom groove are respectively provided with a plurality of first flexible protrusions and second flexible protrusions, and the maximum distance between the first flexible protrusion and the second flexible protrusion is 102% to 105% of the inner diameter of the bottom groove.

[0010] Furthermore, the positions of the first flexible protrusion and the second flexible protrusion correspond to each other.

[0011] Furthermore, a frosted surface is provided on the contact surface between the flexible protrusion and the bottom groove.

[0012] Furthermore, the bottom groove is a T-shaped groove.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] 1. If the flexible protrusion is not included, the sliding surface of the slider and the bottom groove are clearance fit, which helps to assemble the slider and slide the slider;

[0015] 2. After the flexible protrusion is set, since the maximum distance between the two sliding surfaces of the slider is 102% to 105% of the inner diameter of the bottom groove, when the slider is assembled into the bottom groove, the bottom groove will squeeze the flexible protrusion, causing the flexible protrusion to deform inward. This design reduces the gap between the slider and the bottom groove, increases the friction between the slider and the bottom groove, and prevents the slider from moving during use, causing the door and window position to be unstable;

[0016] 3. When the bottom groove squeezes the flexible protrusion, the flexible protrusion will adaptively adjust the degree of inward deformation according to the size of the bottom groove, thus avoiding the need to design high-precision processing tolerances, achieving the transition fit between the bottom groove and the slider, reducing the design and processing costs of the product, and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the present invention from one angle.

[0018] Figure 2 It is a three-dimensional diagram of the utility model from another angle.

[0019] Figure 3 It is a three-dimensional diagram of the slider in the first embodiment of the present utility model.

[0020] Figure 4 It is a cross-sectional view of the slider along the AA direction in the first embodiment of the present invention.

[0021] Figure 5 It is a three-dimensional diagram of a slider in the second embodiment of the present invention.

[0022] Figure 6 It is a side view of the slider in the second embodiment of the present invention.

[0023] Figure 7 It is a three-dimensional diagram of a slider in the third embodiment of the present invention.

[0024] Figure 8 This is a cross-sectional view of the slider along the BB direction in the third embodiment of the present invention.

[0025] Figure 9 It is a cross-sectional view of the heavy bottom trough of the utility model.

[0026] Figure 10 This is a schematic diagram of the utility model after the hinged rod is installed.

[0027] Among them: 1. Slider; 101. Contraction through hole; 102. Flexible protrusion; 1021. First flexible protrusion; 1022. Second flexible protrusion; 103. Hinge hole; 2. Bottom groove; 3. Hinge rod. DETAILED DESCRIPTION

[0028] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0029] See attached Figures 1 to 10 The present invention shows a door and window hinge with an anti-loosening slider, including a bottom groove 2, which is a T-shaped groove. The bottom groove 2 is slidably connected to the slider 1. The surface where the slider 1 slides with the bottom groove 2 is a sliding surface. A plurality of flexible protrusions 102 are provided on one sliding surface or both sliding surfaces. The abutting surface between the flexible protrusion 102 and the bottom groove 2 is provided with a frosted surface. The flexible protrusion 102 is provided with a shrinkage through hole 101 on the side away from the inner wall of the bottom groove 2. The maximum distance L between the two sliding surfaces of the slider 1 is 102% to 105% of the inner diameter H of the bottom groove 2. Example

[0030] See attached Figures 1 to 4 、 Figure 9 and Figure 10 The door and window hinge with an anti-loosening slider shown in the present invention includes a bottom groove 2, which is a T-shaped groove. The bottom groove 2 is slidably connected to the slider 1. The surface where the slider 1 slides with the bottom groove 2 is the sliding surface. Two flexible protrusions 102 are provided on the sliding surface below the slider 1. The abutting surface of each flexible protrusion 102 and the bottom groove 2 is provided with a frosted surface. Each flexible protrusion 102 is provided with a shrinkage through hole 101 on the side away from the inner wall of the bottom groove 2. The maximum distance L from the flexible protrusion 102 to the sliding surface above the slider 1 is 104% of the inner diameter H of the bottom groove 2.

[0031] The slider 1 is provided with two hinge holes for hinge connection with the hinge rods 3 . Four hinge rods 3 of different lengths are hinged to each other to form a hinge portion. The position of the flexible protrusion 102 corresponds to the position of the hinge holes. Example

[0032] See attached Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 9 and Figure 10 , a door and window hinge with an anti-loosening slider shown in the present invention includes a bottom groove 2, which is a T-shaped groove. The bottom groove 2 is slidably connected to the slider 1, and the surface on which the slider 1 slides with the bottom groove 2 is a sliding surface. Two first flexible protrusions 1021 are provided on the sliding surface above the slider 1, and two second flexible protrusions 1022 are provided on the sliding surface below the slider 1. The positions of the first flexible protrusion 1021 and the second flexible protrusion 1022 do not correspond to each other. A frosted surface is provided on the abutting surface of each first flexible protrusion 1021 and the bottom groove 2, and a frosted surface is provided on the abutting surface of each second flexible protrusion 1022 and the bottom groove 2. Each first flexible protrusion 1021 and the second flexible protrusion 1022 are provided with a shrinkage through hole 101 on the side away from the inner wall of the bottom groove 2, and the maximum distance L from the first flexible protrusion 1021 to the second flexible protrusion 1022 is 103.5% of the inner diameter H of the bottom groove 2.

[0033] The slider 1 is provided with two hinge holes for hinge connection with the hinge rods 3 , and four hinge rods 3 of different lengths are hinged to each other to form a hinge portion. Example

[0034] See attached Figure 1 、 Figure 2 、 Figures 7 to 10 , a door and window hinge with an anti-loosening slider shown in the present invention includes a bottom groove 2, which is a T-shaped groove. The bottom groove 2 is slidably connected to the slider 1, and the surface on which the slider 1 slides with the bottom groove 2 is a sliding surface. Two first flexible protrusions 1021 are provided on the sliding surface above the slider 1, and two second flexible protrusions 1022 are provided on the sliding surface below the slider 1. The positions of the first flexible protrusion 1021 and the second flexible protrusion 1022 correspond to each other, and a frosted surface is provided on the abutting surface of each first flexible protrusion 1021 and the bottom groove 2, and a frosted surface is provided on the abutting surface of each second flexible protrusion 1022 and the bottom groove 2. Each first flexible protrusion 1021 and the second flexible protrusion 1022 are provided with a shrinkage through hole 101 on the side away from the inner wall of the bottom groove 2, and the maximum distance L from the first flexible protrusion 1021 to the second flexible protrusion 1022 is 103% of the inner diameter H of the bottom groove 2.

[0035] Two hinge holes for hinged connection with the hinge rods 3 are provided on the slider 1. The positions of the first flexible protrusion 1021 and the second flexible protrusion 1022 correspond to the positions of the hinge holes. Four hinge rods 3 of different lengths are hinged to each other to form a hinge part.

Claims

1. A door and window hinge with an anti-loosening slider, characterized by: The invention comprises a bottom groove (2), wherein the bottom groove (2) is slidably connected to a slider (1), and the sliding surface between the slider (1) and the bottom groove (2) is a sliding surface, wherein a plurality of flexible protrusions (102) are provided on the sliding surface, and the maximum distance between the two sliding surfaces of the slider (1) is 102% to 105% of the inner diameter of the bottom groove (2).

2. The door and window hinge with an anti-loosening slider according to claim 1, characterized in that: The flexible protrusion (102) is provided with a shrinkage through hole (101) on a side away from the inner wall of the bottom groove (2).

3. The door and window hinge with an anti-loosening slider according to claim 1, characterized in that: A plurality of flexible protrusions (102) are provided on any sliding surface where the slider (1) slides with the bottom groove (2), and the maximum distance between the flexible protrusions (102) and the sliding surface where no flexible protrusions (102) are provided is 102% to 105% of the inner diameter of the bottom groove (2).

4. The door and window hinge with an anti-loosening slider according to claim 1, characterized in that: A plurality of first flexible protrusions (1021) and second flexible protrusions (1022) are respectively provided on the two sliding surfaces of the slider (1) and the bottom groove (2), and the maximum distance between the first flexible protrusions (1021) and the second flexible protrusions (1022) is 102% to 105% of the inner diameter of the bottom groove (2).

5. The door and window hinge with an anti-loosening slider according to claim 4, characterized in that: The positions of the first flexible protrusion (1021) and the second flexible protrusion (1022) correspond to each other.

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