Hinge damping

Abstract

The utility model discloses a hinge damper which comprises a hinge rotating shaft and a friction plate assembly arranged on the hinge rotating shaft, one end of the hinge rotating shaft is provided with a positioning protruding part used for positioning one side of the friction plate assembly, and the other end of the hinge rotating shaft is provided with a pre-tightening nut used for positioning the other side of the friction plate assembly and adjusting damping force. The friction plate assembly comprises a set of friction plates arranged side by side. The hinge damping structure is reasonable in design, all friction plate structures are integrated on one flat shaft, the middle friction plate can rotate relative to the flat shaft to achieve rotation damping, and damping force can be adjusted through the pre-tightening nuts at the ends; the structure is compact, the occupied space is small, arrangement and installation are facilitated, and the cost is relatively low.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a hinge damper. Background Art

[0002] At present, the rotating hinge structure of the automobile is mostly provided with a damping structure, through which the damping between the relatively rotating parts is achieved; the existing damping structure has a relatively large number of parts, a complex structure, is not conducive to arrangement and installation, and has a relatively high cost.

[0003] For example, a miniature gear damper disclosed in Chinese patent CN204592193U includes three gears, a worm gear transmission system, a flywheel, a limit sleeve, a friction plate, a damping sleeve, a shaft, a bushing, a support plate, a torsion spring, a cover plate and a housing; the gears are divided into gear A, gear B and gear C, gear A is installed on the gear installation part of the housing, gear B is installed on the extension part of gear A through a keyway connection, and a torsion spring is provided between gear A and gear B; gear C and the worm wheel are installed on the worm wheel shaft, and the worm is divided into two end support parts, a spiral part and a cylindrical shaft part, a support plate is installed at one end support part, and a bushing is installed at the other end support part, and a limit sleeve A, a flywheel and a friction plate are installed on the cylindrical part; the structure is complex and occupies a large space. Another example is a friction plate group and a rotary damper disclosed in Chinese patent CN113153053A, which includes a housing, an elastic element, a first passive friction plate, a friction plate group, a second passive friction plate and a second fixed ring; the structural forms of each friction plate are relatively different, and a friction plate body needs to be set for positioning, the structure is relatively complex, and the cost is relatively high. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a hinge damper to achieve the purpose of compact structure, small space occupation, and easy layout and installation.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The hinge damper includes a hinge shaft and a friction plate assembly arranged on the hinge shaft, one end of the hinge shaft is provided with a positioning protrusion for positioning one side of the friction plate assembly, and the other end of the hinge shaft is provided with a pre-tightening nut for positioning the other side of the friction plate assembly and adjusting the damping force, and the friction plate assembly includes a group of friction plates arranged side by side.

[0007] Further:

[0008] The positioning protrusion is a positioning flange arranged on one end of the hinge shaft, and a mounting end is arranged on the outer side of the positioning flange.

[0009] The group of friction plates are coaxially arranged.

[0010] An elastic gasket structure is provided between one side of the friction plate assembly and the positioning protrusion, and between the other side of the friction plate assembly and the pre-tightening nut.

[0011] The group of friction plates includes a one-side friction plate, a middle friction plate and another-side friction plate, and the middle friction plate is located between the one-side friction plate and the other-side friction plate.

[0012] The elastic gasket structure is a butterfly gasket.

[0013] The corresponding part of a group of friction plates on the hinge shaft is a flat shaft, and the corresponding pre-tightening nut is a threaded section; the friction plates on one side and the friction plates on the other side are both provided with positioning holes adapted to the flat shaft, and the middle friction plate empty sleeve is rotatably arranged on the flat shaft.

[0014] Annular grooves for storing grease are provided on both end surfaces of the middle friction plate.

[0015] A protruding limiting rib is arranged on the outer edge of the middle friction plate.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The hinge damping structure is reasonably designed. All friction plate structures are integrated on a flat shaft. The middle friction plate can rotate relative to the flat shaft to achieve rotational damping. The damping force can be adjusted by the pre-tightening nut at the end. It has a compact structure, occupies little space, is easy to arrange and install, and has a relatively low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 The utility model is a schematic diagram of the hinge damping structure Figure 1 .

[0020] Figure 2 The utility model is a schematic diagram of the hinge damping structure Figure 2 .

[0021] Figure 3 This is a schematic diagram of the hinge shaft structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the utility model with the pre-tightening nut removed.

[0023] Figure 5 This is a schematic diagram of the utility model with the pre-tightening nut and a friction plate removed.

[0024] In the figure:

[0025] 1. Hinge shaft, 101. Connecting end, 102. Positioning flange, 103. Flat shaft, 104. Threaded section, 2. Butterfly washer I, 3. Friction plate on one side, 4. Middle friction plate, 5. Friction plate on the other side, 6. Butterfly washer II, 7. Pre-tightening nut. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0027] like Figures 1 to 5 As shown, the hinge damper includes a hinge shaft 1 and a friction plate assembly arranged on the hinge shaft, one end of the hinge shaft 1 is provided with a positioning protrusion for positioning one side of the friction plate assembly, and the other end of the hinge shaft is provided with a pre-tightening nut 7 for positioning the other side of the friction plate assembly and adjusting the damping force, and the friction plate assembly includes a group of friction plates arranged side by side.

[0028] A group of friction plates are directly integrated on the hinge shaft 1, one end of which is positioned by a protruding structure on the hinge shaft, and the other end is positioned by a pre-tightening nut on the end of the hinge shaft. The structure is compact, occupies little space, and is easy to arrange; the structure is simple and the cost is relatively low.

[0029] The positioning protrusion is a positioning flange 102 provided on one end of the hinge shaft, and a mounting end is provided on the outer side of the positioning flange to form a connecting end 101, which is convenient for the installation of the hinge shaft; a group of friction plates are coaxially arranged, that is, a group of friction plates and pre-tightening nuts are coaxially arranged side by side to form a linear structure, which is convenient for layout.

[0030] Preferably, a group of friction plates includes a one-side friction plate 3, a middle friction plate 4 and an other-side friction plate 5, wherein the middle friction plate is located between the one-side friction plate and the other-side friction plate; a plurality of middle friction plates may also be provided according to circumstances.

[0031] Preferably, three friction plates are arranged, and a corresponding group of friction plates on the hinge shaft is a flat shaft 103, and a corresponding pre-tightening nut is a threaded section 104; positioning holes matching the flat shaft are provided on the friction plates on one side and the friction plates on the other side, and the middle friction plate is rotatably arranged on the flat shaft; the middle friction plate and the friction plates on both sides rotate relative to each other to form a damping force, and the damping force is adjusted by loosening or tightening the pre-tightening nuts at the ends.

[0032] An elastic gasket structure is provided between one side of the friction plate assembly and the positioning protrusion, and between the other side of the friction plate assembly and the pre-tightening nut. Preferably, the elastic gasket structure is a butterfly gasket.

[0033] Specifically, a butterfly gasket I2 is provided between the friction plate and the positioning flange on one side, and a butterfly gasket II6 is provided between the friction plate and the pre-tightening nut on the other side. Both butterfly gaskets are mounted on the hinge shaft to enhance the damping effect and have a compact structure.

[0034] A protruding limiting rib is provided on the outer edge of the middle friction plate, which cooperates with the fixed parts on the car through the limiting rib, and the end of the hinge shaft is connected to the rotating parts, thereby realizing the rotation damping feeling of the rotating parts of the car, and the structure is compact; annular grooves for storing grease are provided on both end surfaces of the middle friction plate.

[0035] The hinge damping structure of the utility model is reasonably designed, all friction plate structures are integrated on a flat shaft, the middle friction plate can be rotated relative to the flat shaft to realize rotational damping, and the damping force can be adjusted by the pre-tightening nut at the end; the structure is compact, occupies little space, is conducive to layout and installation, and has relatively low cost.

[0036] The above is only an explanation of the preferred embodiments of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0037] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A hinge damper, comprising a hinge shaft and a friction plate assembly arranged on the hinge shaft, characterized in that: One end of the hinge shaft is provided with a positioning protrusion for positioning one side of the friction plate assembly, and the other end of the hinge shaft is provided with a pre-tightening nut for positioning the other side of the friction plate assembly and adjusting the damping force. The friction plate assembly includes a group of friction plates arranged side by side.

2. The hinge damper according to claim 1, characterized in that: The positioning protrusion is a positioning flange arranged on one end of the hinge shaft, and a mounting end is arranged on the outer side of the positioning flange.

3. The hinge damper according to claim 1, characterized in that: The group of friction plates are coaxially arranged.

4. The hinge damper according to claim 1, characterized in that: An elastic gasket structure is provided between one side of the friction plate assembly and the positioning protrusion, and between the other side of the friction plate assembly and the pre-tightening nut.

5. The hinge damper according to claim 1, characterized in that: The group of friction plates includes a one-side friction plate, a middle friction plate and another-side friction plate, and the middle friction plate is located between the one-side friction plate and the other-side friction plate.

6. The hinge damper according to claim 4, characterized in that: The elastic gasket structure is a butterfly gasket.

7. The hinge damper according to claim 5, characterized in that: The corresponding part of a group of friction plates on the hinge shaft is a flat shaft, and the corresponding pre-tightening nut is a threaded section; the friction plates on one side and the friction plates on the other side are both provided with positioning holes adapted to the flat shaft, and the middle friction plate empty sleeve is rotatably arranged on the flat shaft.

8. The hinge damper according to claim 7, characterized in that: Annular grooves for storing grease are provided on both end surfaces of the middle friction plate.

9. The hinge damper according to claim 7, characterized in that: A protruding limiting rib is arranged on the outer edge of the middle friction plate.

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