Mute hinge

Abstract

The utility model discloses a mute hinge. The silent wear-resistant sliding rail comprises a rail, a connecting arm, a first supporting arm, a second supporting arm and a third supporting arm, a sliding block is arranged on the front side face of the rail, a first silent wear-resistant plastic layer is arranged on the surface of the sliding block, an anti-falling nail is arranged on the lower side face of the sliding block, and a second silent wear-resistant plastic layer is arranged on the surface of the end, connected with the third supporting arm, of the second supporting arm. The first mute wear-resistant plastic layer is arranged on the surface of the sliding block, the second mute wear-resistant plastic layer is arranged on the surface of one end of the second supporting arm, noise generated when the hinge works can be greatly reduced, the problem of rusting is avoided, meanwhile, the anti-disengaging nail is arranged, and the situation that the sliding block is disengaged due to the fact that the swing amplitude of wind is too large when a window sash blows is avoided. The hinge has the advantages of being ingenious in structure, quiet and durable, and the service life of the hinge is prolonged.

Description

Technical Field

[0001] The utility model relates to a hinge, in particular to a silent hinge for installing side-opening doors and windows. Background Art

[0002] When a door or window hinge is working, due to the direct friction between metal parts, noise is easily generated. Moreover, the surfaces in direct contact between metal parts are affected by water in the air for a long time, and are also prone to rust, resulting in unsmooth opening and closing of the hinge. In severe cases, it may not be able to open or close due to rust. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a silent hinge, which can effectively solve the problems of working noise and rust between metal parts on the hinge. By providing a first silent wear-resistant plastic layer on the surface of the slider and a second silent wear-resistant plastic layer on the surface of one end of the second arm, the noise generated during the operation of the hinge can be greatly reduced, and the problem of rust can be avoided. At the same time, the anti-disengagement nail is provided to prevent the slider from becoming loose due to excessive shaking when the wind blows on the window sash, ensuring the use safety and improving the service life of the hinge. It has the characteristics of ingenious structure, quietness and durability.

[0004] To achieve the above object, the technical solution adopted by the utility model is: a silent hinge, including a track, a connecting arm, a first arm, a second arm and a third arm, characterized in that: a slider is provided on the front side surface of the track, a first silent wear-resistant plastic layer is provided on the surface of the slider, a horizontal sliding convex edge is provided on the slider, the sliding convex edge is provided at the lower edge of the front side surface of the slider, and a horizontal sliding groove is provided on the sliding convex edge;

[0005] A hook-shaped part matching with the sliding convex edge and the sliding groove is provided at the lower edge of the front side surface of the track;

[0006] A horizontal sliding long hole is provided on the track, the sliding long hole is matched with the slider, and an anti-disengagement nail matching with the sliding long hole is provided on the lower side surface of the sliding;

[0007] A second silent wear-resistant plastic layer is provided on the surface of the end where the second arm is connected to the third arm.

[0008] Further, the first arm, the second arm and the third arm are arranged from left to right. One end of the first arm is hinged to the slider and the other end is hinged to the left end of the connecting arm. One end of the second arm is hinged to the slider and the other end is hinged to the middle of the third arm. One end of the third arm is hinged to the track and the other end is hinged to the middle of the connecting arm.

[0009] Further, silent wear-resistant plastic pads are provided at the hinge joints between the first support arm and the connecting arm, between the third support arm and the connecting arm, and between the third support arm and the track.

[0010] Further, a limiting post is provided at the left end of the slider, and a limiting hook matching with the limiting post is provided at the left end of the connecting arm.

[0011] Further, the anti-detaching nail includes a connecting part, a sliding part and an anti-detaching part arranged from top to bottom. The connecting part is used for connecting with the slider. The outer diameter of the sliding part is smaller than the width of the sliding long hole, and the outer diameter of the anti-detaching part is larger than the width of the sliding long hole.

[0012] Further, a first ratchet tooth is provided at the lower end of the first support arm, and an arc-shaped first ratchet slope is provided above the first ratchet tooth.

[0013] Further, a second ratchet tooth matching with the first ratchet tooth is provided at the lower end of the second support arm, a second ratchet slope matching with the first ratchet slope is provided above the second ratchet tooth, a third ratchet tooth is provided above the second ratchet slope, and the third ratchet tooth matches with the right side surface of the first support arm.

[0014] The utility model adopts the above technical scheme, overcomes the deficiencies of the background technology, and provides a silent hinge. It can effectively solve the problems of working noise and rust between metal parts on the hinge. By providing a first silent wear-resistant plastic layer on the surface of the slider and a second silent wear-resistant plastic layer on the surface of one end of the second support arm, the noise generated during the operation of the hinge can be greatly reduced, and the problem of rust can be avoided. At the same time, the anti-detaching nail is provided to prevent the window sash from shaking too much when blown by the wind, resulting in the loosening of the slider, ensuring the use safety and improving the service life of the hinge. It has the characteristics of ingenious structure, quietness and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 is a schematic structural view of the utility model in the opened state Figure 1 .

[0016] Attached Figure 2 is a schematic structural view of the utility model in the opened state Figure 2 .

[0017] Attached Figure 3 is a schematic structural view of the utility model in the folded state.

[0018] Attached Figure 4 is a schematic exploded structural view of the utility model in the opened state.

[0019] Attached Figure 5 is a schematic structural view of the slider in the utility model.

[0020] Appendix Figure 6 is a schematic structural view of the first arm in the present utility model.

[0021] Appendix Figure 7 is a schematic structural view of the second arm in the present utility model.

[0022] Appendix Figure 8 is a schematic structural view of the anti - detachment nail in the present utility model.

[0023] Appendix Figure 9 is a schematic view of the usage state of the present utility model.

[0024] In the figure: track 1, hook - shaped part 101, sliding long hole 102, connecting arm 2, limiting hook 201, first arm 3, first ratchet tooth 301, first ratchet slope 302, second arm 4, second silent wear - resistant plastic layer 401, second ratchet tooth 402, second ratchet slope 403, third ratchet tooth 404, third arm 5, slider 6, first silent wear - resistant plastic layer 601, sliding convex edge 602, sliding groove 603, anti - detachment nail 7, connecting part 701, sliding part 702, anti - detachment part 703, silent wear - resistant plastic pad 8, limiting column 9, window sash 10, window frame 11. Detailed implementation manners

[0025] The descriptions of the following embodiments refer to the attached drawings, which are used to illustrate specific embodiments in which the present utility model can be implemented. The directional terms mentioned in the present utility model, such as up, down, front, back, left, right, inside, outside, side surface, etc., are only in the way of referring to the attached drawings. Therefore, the directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model. In the figures, the structurally similar units are denoted by the same reference numerals.

[0026] The following further describes the present utility model in conjunction with the drawings, making the technical solutions and their beneficial effects of the present utility model clearer and more definite.

[0027] Referring to Appendix Figures 1 to 9 , the present utility model includes a track 1, a connecting arm 2, a first arm 3, a second arm 4 and a third arm 5, and is characterized in that: a slider 6 is provided on the front side surface of the track 1, a first silent wear - resistant plastic layer 601 is provided on the surface of the slider 6, a horizontal sliding convex edge 602 is provided on the slider 6, the sliding convex edge 602 is provided at the lower edge of the front side surface of the slider 6, and a horizontal sliding groove 603 is provided on the sliding convex edge 602;

[0028] A hook - shaped part 101 matching with the sliding convex edge 602 and the sliding groove 603 is provided at the lower edge of the front side surface of the track 1;

[0029] The sliding long hole 102 transverse to the track 1, the sliding long hole 102 is matched with the slider 6, and an anti - detachment pin 7 matched with the sliding long hole 102 is arranged on the lower side of the sliding part;

[0030] A second silent wear - resistant plastic layer 401 is arranged on the surface of the end of the second arm 4 connected to the third arm 5.

[0031] A first silent wear - resistant plastic layer 601 is arranged on the surface of the slider 6 and a second silent wear - resistant plastic layer 401 is arranged on the surface of one end of the second arm 4, which can reduce the frictional noise when they swing.

[0032] Further, the first arm 3, the second arm 4 and the third arm 5 are arranged from left to right. One end of the first arm 3 is hinged to the slider 6 and the other end is hinged to the left end of the connecting arm 2. One end of the second arm 4 is hinged to the slider 6 and the other end is hinged to the middle of the third arm 5. One end of the third arm 5 is hinged to the track 1 and the other end is hinged to the middle of the connecting arm 2.

[0033] Further, silent wear - resistant plastic pads 8 are arranged at the hinge joints between the first arm 3 and the connecting arm 2, between the third arm 5 and the connecting arm 2, and between the third arm 5 and the track 1.

[0034] Setting silent wear - resistant plastic pads 8 at other hinge joints can reduce the frictional noise between metal parts and avoid rusting of the contact surfaces of metal parts at the same time.

[0035] Further, a limiting post 9 is arranged at the left - end end of the slider 6, and a limiting hook 201 matched with the limiting post 9 is arranged at the left - end end of the connecting arm 2.

[0036] Further, the anti - detachment pin 7 includes a connecting part 701, a sliding part 702 and an anti - detachment part 703 arranged from top to bottom. The connecting part 701 is used to connect with the slider 6. The outer diameter of the sliding part 702 is smaller than the width of the sliding long hole 102, and the outer diameter of the anti - detachment part 703 is larger than the width of the sliding long hole 102.

[0037] When the strong wind blows the window sash 10, it will swing or shake. The anti - detachment pin 7 can firmly fix the slider 6 on the track 1 when the slider 6 swings and will not become loose, ensuring the use safety.

[0038] Further, a first ratchet tooth 301 is arranged at the lower - end end of the first arm 3, and an arc - shaped first ratchet slope 302 is arranged above the first ratchet tooth 301.

[0039] Further, at the lower end of the second arm 4, there is a second ratchet 402 that cooperates with the first ratchet 301. Above the second ratchet 402, there is a second ratchet slope 403 that cooperates with the first ratchet slope 302. Above the second ratchet slope 403, there is a third ratchet 404, and the third ratchet 404 cooperates with the right side surface of the first arm 3.

[0040] In the folded state, the first ratchet 301 cooperates with the second ratchet 402. During the process of opening or folding, the first ratchet slope 302 and the second ratchet slope 403 do not contact each other. When the maximum open state is reached, the third ratchet 404 cooperates with the right side surface of the first arm 3.

[0041] Through the description of the above structure and principle, those skilled in the art should understand that the present utility model is not limited to the above specific embodiments. Improvements and substitutions using well-known techniques in the art based on the present utility model fall within the protection scope of the present utility model, which should be defined by each claim.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0044] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0046] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A silent hinge, comprising a track, a connecting arm, a first arm, a second arm and a third arm, characterized in that: A slider is provided on the front side of the track, a first silent and wear-resistant plastic layer is provided on the surface of the slider, a transverse sliding convex edge is provided on the slider, the sliding convex edge is provided at the lower edge of the front side of the slider, and a transverse sliding groove is provided on the sliding convex edge; A hook-shaped portion matching with the sliding convex edge and the sliding groove is provided at the lower edge of the front side of the track; A transverse sliding long hole on the track, the sliding long hole matches the sliding block, and an anti-dropping nail matching the sliding long hole is provided on the lower side of the slide; A second sound-proof and wear-resistant plastic layer is provided on the surface of one end of the second arm connected to the third arm.

2. A silent hinge according to claim 1, characterized in that: The first arm, the second arm and the third arm are arranged from left to right, one end of the first arm is hinged to the slider, and the other end is hinged to the left end of the connecting arm, one end of the second arm is hinged to the slider, and the other end is hinged to the middle of the third arm, one end of the third arm is hinged to the track, and the other end is hinged to the middle of the connecting arm.

3. A silent hinge according to claim 2, characterized in that: A hinge between the first support arm and the connecting arm, a hinge between the third support arm and the connecting arm, and a hinge between the third support arm and the track are all provided with a silent and wear-resistant plastic pad.

4. The silent hinge according to claim 1, characterized in that: A limiting column is provided at the left end of the sliding block, and a limiting hook matched with the limiting column is provided at the left end of the connecting arm.

5. The silent hinge according to claim 1, characterized in that: The anti-slip pin includes a connecting part, a sliding part and an anti-slip part arranged from top to bottom, the connecting part is used to connect with the sliding block, the outer diameter of the sliding part is smaller than the width of the sliding long hole, and the outer diameter of the anti-slip part is larger than the width of the sliding long hole.

6. The silent hinge according to claim 1, characterized in that: A first ratchet tooth is disposed at the lower end of the first support arm, and an arc-shaped first ratchet slope is disposed above the first ratchet tooth.

7. The silent hinge according to claim 6, characterized in that: A second ratchet tooth matching with the first ratchet tooth is provided at the lower end of the second support arm, a second ratchet slope matching with the first ratchet slope is provided above the second ratchet tooth, a third ratchet tooth is provided above the second ratchet slope, and the third ratchet tooth matches with the right side surface of the first support arm.

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