Damper and mirror

Abstract

The damper comprises a first damping fin and a second damping fin, the first damping fin comprises a first main body and a flat shaft, the outer wall of the flat shaft is provided with two opposite arc surfaces and two opposite gentle surfaces in the circumferential direction, the arc surfaces are provided with concave-convex structures, the second damping fin comprises a second main body and a shaft groove, and the second main body is provided with a concave-convex structure. A notch is formed in the shaft groove in the axial direction of the shaft groove, the flat shaft is inserted into the shaft groove at a specific relative angle and rotates till the arc face is staggered with the notch so that the flat shaft can be limited in the shaft groove, the inner wall of the shaft groove is provided with a concave-convex structure, and the concave-convex structure can be matched with and slide away from the concave-convex structure on the arc face. Therefore, the first damping fin and the second damping fin can hover and rotate relatively. The damper is convenient to disassemble and assemble through the design of the flat shaft and the shaft groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household articles, in particular to a damper and mirror. BACKGROUND

[0002] Mirror is as a kind of household article, to realize the demand of multi-angle mirror, the miniaturization cosmetic mirror with three mirror structure on market, including middle mirror body and the side mirror body being arranged in middle mirror body two sides, side mirror body and middle mirror are connected by ordinary hinge structure rotation. To facilitate user use, usually need to install damping piece between middle mirror body and side mirror body, make side mirror body can multi-angle hover. Related technology discloses a kind of multi-angle hover three mirror, utilize locking bolt and rotate into screw hole and press side mirror body towards hinge fixed part, realize damping effect by the abutment friction of two hinges, this method will have greater wear in long-term relative movement, resistance will drop, and it is easy to loose after long time, and installation is troublesome, and installation efficiency is lower. UTILITY MODEL CONTENTS

[0003] The utility model aims at at least one of the above-mentioned technical problems in the related art to some extent. To this end, the utility model provides a damper.

[0004] To achieve the above object, the technical scheme of the utility model is as follows:

[0005] The utility model further provides a mirror with the above-mentioned damper.

[0006] According to the first aspect embodiment of the utility model, the damper comprises:

[0007] The first damping sheet comprises a first main body and a flat shaft, the outer wall of the flat shaft has two opposite circular surfaces and two opposite flat surfaces in the circumferential direction, the flat surfaces are connected between the two circular surfaces, the cross-sectional shape of the flat shaft is a flat circle, and the circular surfaces have a concave-convex structure;

[0008] The second damping sheet comprises a second main body and a shaft slot, the cross-sectional shape of the shaft slot is a circle, the inner wall curvature of the shaft slot is matched with the curvature of the circular surface, a gap is formed in the shaft slot in the axial direction, there is a specific relative angle between the first damping sheet and the second damping sheet, the circular surface faces the gap at the specific relative angle, the flat shaft is inserted into the shaft slot at the specific relative angle and rotated to misalign the circular surface and the gap, so that the flat shaft is limited in the shaft slot, and the inner wall of the shaft slot has a concave-convex structure, which can be matched and slipped with the concave-convex structure on the circular surface, so that the first damping sheet and the second damping sheet can be suspended and rotated relative to each other.

[0009] According to the damper, at least the following beneficial effects are achieved:

[0010] The damper of the utility model needs to cooperate with conventional hinges, after the two mirror bodies are connected by the hinges, the circular arc surface of the flat shaft is directly inserted into the shaft slot through the gap, the assembly of the first damping piece and the second damping piece is completed, then the first damping piece and the second damping piece are connected with one mirror body respectively, and the installation is completed.

[0011] According to some embodiments of the utility model, the cross section profile of the flat shaft is composed of two opposite circular arc segments and two opposite flat segments, the circular arc segment is a line segment formed by the intersection of the circular arc surface and the cross section, the flat segment is a line segment formed by the intersection of the flat surface and the cross section, the distance L1 between the midpoints of the two circular arc segments is greater than the distance L2 between the midpoints of the two flat segments, and the transverse width L3 of the gap is greater than the distance L2 and less than the distance L1.

[0012] According to some embodiments of the utility model, a plurality of smooth damping ribs are arranged on the circular arc surface, each damping rib extends along the axial direction of the flat shaft, and the inner wall of the shaft slot is provided with a plurality of grooves in the circumferential direction.

[0013] According to some embodiments of the utility model, a wave line is arranged between the two adjacent grooves.

[0014] According to some embodiments of the utility model, the first body is in the shape of C, the flat shaft is connected between the two ends of the first body, so that the first damping piece is in the shape of D, the first body and the flat shaft enclose an avoiding opening, the shape of the second body is matched with the avoiding opening, and the second body can be embedded into the avoiding opening.

[0015] According to some embodiments of the utility model, the flat surface is a flat surface.

[0016] According to some embodiments of the utility model, screw mounting holes are formed in the first body and / or the second body.

[0017] According to some embodiments of the utility model, the screw mounting hole is a counterbore.

[0018] According to some embodiments of the present application, the material of the first damping sheet and the second damping sheet is plastic.

[0019] According to the second aspect of the present application, the mirror comprises the damper, the hinge, the main mirror and the side mirror, the main mirror and the side mirror are connected through the hinge, the first damping sheet is connected with the main mirror, the second damping sheet is connected with the side mirror, or the first damping sheet is connected with the side mirror, and the second damping sheet is connected with the main mirror.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 is a structural schematic view of the first damping sheet of the present application;

[0023] Figure 2 is a sectional view of the flat shaft of the present application;

[0024] Figure 3 is a structural schematic view of the second damping sheet of the present application;

[0025] Figure 4 is Figure 3 is an enlarged view of part A in figure 6;

[0026] Figure 5 is a structural schematic view of the mirror of the present application.

[0027] Reference signs: first damping sheet 100, first main body 110, flat shaft 120, circular arc surface 121, flat surface 122, circular arc segment 123, flat segment 124, damping rib 125, avoiding opening 130, second damping sheet 200, second main body 210, shaft groove 220, notch 221, groove 222, wavy fine lines 223, screw mounting hole 300, hinge 400, main mirror 500, side mirror 600. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] Reference is made to Figures 1-4A damper comprises:

[0030] The first damping piece 100 comprises a first body 110 and a flat shaft 120, the flat shaft 120 is integrally formed with the first body 110, the first body 110 is used for connecting with a mirror body, the outer wall of the flat shaft 120 has two opposite circular arc surfaces 121 and two opposite flat surfaces 122 in the circumferential direction, the flat surfaces 122 are connected between the two circular arc surfaces 121, the cross-sectional shape of the flat shaft 120 is a flat circle, and the circular arc surfaces 121 have a concave-convex structure.

[0031] The second damping piece 200 comprises a second body 210 and a shaft groove 220, the second body 210 is integrally formed with the shaft groove 220, the second body 210 is used for connecting with the mirror body, the cross-sectional shape of the shaft groove 220 is a circle, the inner wall curvature of the shaft groove 220 is matched with the curvature of the circular arc surface 121, the shaft groove 220 is provided with a gap 221 in the axial direction, there is a specific relative angle between the first damping piece 100 and the second damping piece 200, the circular arc surface 121 is opposite to the gap 221 under the specific relative angle, the flat shaft 120 is inserted into the shaft groove 220 at the specific relative angle and is rotated to be offset from the gap 221, so that the flat shaft 120 is limited in the shaft groove 220, and the inner wall of the shaft groove 220 has a concave-convex structure which can be matched with and slipped off the concave-convex structure on the circular arc surface 121, so that the first damping piece 100 and the second damping piece 200 can be suspended and rotated relative to each other.

[0032] In some embodiments of the utility model, the cross-sectional profile of the flat shaft 120 is composed of two opposite circular arc segments 123 and two opposite flat segments 124, the circular arc segment 123 is a segment formed by the intersection of the circular arc surface 121 and the cross section, the flat segment 124 is a segment formed by the intersection of the flat surface 122 and the cross section, the distance L1 between the midpoints of the two circular arc segments 123 is greater than the distance L2 between the midpoints of the two flat segments 124, and the transverse width L3 of the gap 221 is greater than the distance L2 and smaller than the distance L1.

[0033] In some embodiments of the utility model, the circular arc surface 121 is provided with a plurality of smooth damping ribs 125, each damping rib 125 extends in the axial direction of the flat shaft 120, the inner wall of the shaft groove 220 is provided with a plurality of grooves 222 in the circumferential direction, and the damping rib 125 and the groove 222 can be matched with and slipped off each other. The damping effect is generated by the friction between the damping rib 125 and the groove 222, the smooth design of the damping rib 125 makes it easy to be embedded and slipped out of the groove 222, reduces the rotating resistance and reduces the abrasion.

[0034] In some embodiments of the utility model, two adjacent grooves 222 are provided with wave lines 223. When the damping rib 125 is in line with the groove 222, the "positioning hovering" function is provided, and in the non-in-line area between the two grooves 222 (i.e. when the damping rib 125 slides through the wave lines 223), the fluctuation structure of the wave lines increases the rotating resistance through the periodic change of the micro contact points, ensuring that there is always stable friction damping in the rotation process.

[0035] In some embodiments of the utility model, the first body 110 is C-shaped, and the flat shaft 120 is connected between the two ends of the first body 110, so that the first damping piece 100 is D-shaped as a whole, and the first body 110 and the flat shaft 120 form an avoiding opening 130, and the shape of the second body 210 is matched with the avoiding opening 130, and the second body 210 can be embedded in the avoiding opening 130 as a whole. The avoiding opening 130 ensures that the rotation between the first damping piece 100 and the second damping piece 200 is not blocked by each other, and when the two mirror bodies are on the same axis, i.e. the side of the two mirror bodies is opposite, the second body 210 is embedded in the avoiding opening 130 as a whole.

[0036] In some embodiments of the utility model, the flat surface 122 is a flat surface. The flat surface has a certain guiding effect, the transverse width L3 of the notch 221 is slightly larger than the interval L2, so that the flat surface and the notch 221 are always gap matched during the insertion of the flat shaft 120 into the shaft groove 220, and the insertion process is not easy to be stuck. If the flat surface 122 is an arc surface, the flat shaft 120 may deviate during insertion, causing sticking, insertion failure and other problems.

[0037] In some embodiments of the utility model, screw mounting holes 300 are formed on the first body 110 and / or the second body 210. The damping piece is locked on the mirror body by screws, which is convenient for disassembly and maintenance.

[0038] In some embodiments of the utility model, the screw mounting hole 300 is a counterbore. The head of the screw is not protruding from the damping piece by using a countersunk screw, so as to avoid the head of the screw from interfering with the rotation of the mirror body.

[0039] In some embodiments of the utility model, the material of the first damping piece 100 and the second damping piece 200 is plastic. Compared with metal, the wear rate of plastic and plastic friction is lower. The friction coefficient of plastic is moderate, and stable damping force can be generated through the concave-convex structure without additional lubrication, and the resistance of plastic during rotation is more uniform. The elastic deformation ability of plastic enables the damping rib 125 to slightly deform when engaging with the groove 222, compensates for the processing tolerance, and ensures that the concave-convex structure is always in effective contact (metal parts are prone to local stress concentration due to rigid contact, which causes wear).

[0040] Referring to Figure 5The mirror comprises the damper, the hinge 400, the main mirror 500 and the side mirror 600, the main mirror 500 and the side mirror 600 are connected through the hinge 400, the first damping piece 100 is connected with the main mirror 500, the second damping piece 200 is connected with the side mirror 600, or the first damping piece 100 is connected with the side mirror 600, and the second damping piece 200 is connected with the main mirror 500.

[0041] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A damper characterized by, The application relates to a damping piece, which comprises a first damping piece (100) and a second damping piece (200). The first damping piece (100) comprises a first body (110) and a flat shaft (120), the outer wall of the flat shaft (120) has two opposite circular arc surfaces (121) and two opposite flat surfaces (122) in the circumferential direction, the flat surfaces (122) are connected between the two circular arc surfaces (121), the cross section of the flat shaft (120) is in the shape of a flat circle, and the circular arc surfaces (121) have concave-convex structures. The second damping piece (200) comprises a second body (210) and a shaft groove (220), the cross section of the shaft groove (220) is in the shape of a circle, the inner wall of the shaft groove (220) has an arc that is matched with the arc of the circular arc surface (121), the shaft groove (220) has a gap (221) in the axial direction, there is a specific relative angle between the first damping piece (100) and the second damping piece (200) for the flat shaft (120) to pass through the gap (221), the circular arc surface (121) is opposite to the gap (221) at the specific relative angle, the flat shaft (120) is inserted into the shaft groove (220) at the specific relative angle and is rotated to the position where the circular arc surface (121) is deviated from the gap (221), so that the flat shaft (120) is limited in the shaft groove (220), and the inner wall of the shaft groove (220) has concave-convex structures which can be matched with and slipped off the concave-convex structures on the circular arc surface (121), so that the first damping piece (100) and the second damping piece (200) can be suspended and rotated relative to each other.

2. The damper of claim 1, wherein The cross section of the flat shaft (120) is composed of two opposite circular arc segments (123) and two opposite flat segments (124), the circular arc segments (123) are line segments formed by the intersection of the circular arc surface (121) and the cross section, the flat segments (124) are line segments formed by the intersection of the flat surface (122) and the cross section, the distance L1 between the midpoints of the two circular arc segments (123) is greater than the distance L2 between the midpoints of the two flat segments (124), and the transverse width L3 of the gap (221) is greater than the distance L2 and smaller than the distance L1.

3. The damper of claim 1, wherein, The circular arc surface (121) is provided with a plurality of smooth damping ribs (125), each damping rib (125) extends in the axial direction of the flat shaft (120), the inner wall of the shaft groove (220) is provided with a plurality of grooves (222) in the circumferential direction, and the damping ribs (125) and the grooves (222) can be matched with and slipped off each other.

4. The damper of claim 3, wherein Wave fine lines (223) are arranged between two adjacent grooves (222).

5. The damper of claim 1, wherein, The first body (110) is in the shape of C, the flat shaft (120) is connected between the two ends of the first body (110), so that the first damping piece (100) is in the shape of D as a whole, the first body (110) and the flat shaft (120) enclose an avoiding opening (130), the second body (210) is matched with the avoiding opening (130) in shape, and the second body (210) can be embedded into the avoiding opening (130) as a whole.

6. The damper of claim 1, wherein, The flat surface (122) is a flat surface.

7. The damper of claim 1, wherein A screw mounting hole (300) is formed on the first body (110) and / or the second body (210).

8. The damper of claim 7, wherein, The screw mounting hole (300) is a counterbore.

9. The damper of claim 1, wherein, The first damping sheet (100) and the second damping sheet (200) are made of plastic.

10. A mirror, characterized by The damper, the hinge (400), the main mirror (500) and the side mirror (600) according to any one of claims 1-9 are connected by the hinge (400), the first damping sheet (100) is connected with the main mirror (500), the second damping sheet (200) is connected with the side mirror (600), or the first damping sheet (100) is connected with the side mirror (600), and the second damping sheet (200) is connected with the main mirror (500).

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