CN215895343U

CN215895343U - Mechanical rotating shaft and notebook computer

Info

Publication number: CN215895343U
Application number: CN202121566774.2U
Authority: CN
Inventors: 许一迪
Original assignee: Shenzhen Jinguanxiang Technology Co ltd
Current assignee: Shenzhen Jinguanxiang Technology Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-02-22
Anticipated expiration: 2031-07-09

Abstract

A mechanical rotating shaft and a notebook computer are provided, the mechanical rotating shaft comprises a movable support, a fixed support, a rotating shaft and a limiting piece, the movable support is provided with a movable support main body, one side of the movable support main body is provided with a vertical lug, the fixed support is provided with a fixed support main body, one side of the fixed support main body is wound to form a shaft sleeve, the rotating shaft is rotatably arranged in the shaft sleeve, and two ends of the rotating shaft extend out of the shaft sleeve; the outer peripheral surface of the limiting piece is formed by splicing two arc surfaces with different radiuses, one side of the fixed support extends and is positioned on the side surface of the limiting piece to form a limiting step, the vertical distance between the limiting step and the central axis of the rotating shaft is smaller than the radius of one of the arc surfaces and larger than the radius of the other arc surface, and the angle of the movable support rotating relative to the fixed support through the rotating shaft is the arc angle corresponding to the arc surface with the smaller radius. The mechanical rotating shaft has the advantages of simple structure, less production procedures, low processing difficulty and good product quality stability.

Description

Mechanical rotating shaft and notebook computer

Technical Field

The utility model relates to the technical field of rotating shafts, in particular to a mechanical rotating shaft.

Background

The mechanical rotating shaft is generally used for rotatably connecting parts of various products such as a notebook computer, a flip phone, a foldable LED lamp and the like, and has the function of bearing bending moment and torque in the rotating work. With the continuous progress of science and technology, many products tend to be miniaturized, the structure of the mechanical rotating shaft adopted by the mechanical rotating shaft is mostly as shown in fig. 1 and fig. 2, and the mechanical rotating shaft mainly comprises a first five-piece metal 100, a positioning pin 200, a rotating shaft core 300, a rivet 400 and a second five-piece metal 500, wherein the rotating angle of the rotating shaft core 300 is limited and limited by the positioning pin 200 and the first five-piece metal 100, so that the relative rotating angle between the first five-piece metal 100 and the second five-piece metal 500 is limited. However, the mechanical rotating shaft of this structure has the following drawbacks:

1) the rotating shaft core 300 needs to perform hole machining and large plane machining on a circular shaft, and is complex in process and low in automation degree;

2) in the production and assembly process of the positioning pin 200, due to the fact that parts are small, assembly requirements are high, fit clearance is small, manual assembly riveting is needed, production efficiency is low in the process, error rate is high, neglected assembly rate is high, and product consistency is poor;

3) the positioning pin 200 needs to be matched with the structure of the rotating shaft core 300 for space limitation, the diameter size of the positioning pin is relatively small, the limiting force on the rotating shaft core 300 is small, and when the positioning pin 200 is used for a product with a large size, the frequency of breakage of the positioning pin 200 is higher than that of a new product.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model provides the mechanical rotating shaft and the notebook computer, which have the advantages of simple structure, less production procedures, low processing difficulty and good quality stability of products.

In order to achieve the purpose, the utility model provides a mechanical rotating shaft which comprises a movable support, a fixed support, a rotating shaft and a limiting piece, wherein the movable support is provided with a movable support main body made of a planar metal sheet, one side of the movable support main body is vertically bent to form a vertical lug, the fixed support is provided with a fixed support main body made of a planar metal sheet, one side of the fixed support main body is wound to form a shaft sleeve, the rotating shaft is rotatably arranged in the shaft sleeve, two ends of the rotating shaft extend out of the shaft sleeve, one end of the rotating shaft is fixedly connected with the limiting piece attached to the end part of the shaft sleeve, the other end of the rotating shaft extends out of the vertical lug and is fixedly connected with the vertical lug, and the movable support main body and the fixed support main body are provided with openings;

the outer peripheral surface of the limiting piece is formed by splicing two arc surfaces with different radiuses, the circle centers of circles where the two arc surfaces are located on the central axis of the rotating shaft, one side of the fixed support extends and is located on the side surface of the limiting piece to form a limiting step, the distance between the limiting step and the central axis of the rotating shaft is smaller than the radius of one arc surface and larger than the radius of the other arc surface, and the angle of the movable support, which rotates relative to the fixed support through the rotating shaft, is the arc angle corresponding to the arc surface with the smaller radius.

As a further preferable technical scheme of the utility model, both ends of the rotating shaft are respectively and fixedly connected with the vertical lug and the limiting piece in riveting, welding or nut locking connection modes.

In a further preferred embodiment of the present invention, a movable bracket reinforcing arm plate is formed on the movable bracket so as to extend horizontally or in a bent manner toward the fixed bracket on a side close to the ear, and the movable bracket reinforcing arm plate is also provided with an opening.

As a further preferable technical solution of the present invention, a fixing bracket reinforcing arm plate is formed on the fixing bracket by extending horizontally or bending one side of the fixing bracket away from the shaft sleeve in a direction away from the shaft sleeve, and the fixing bracket reinforcing arm plate is also provided with an opening.

In a further preferred embodiment of the present invention, the fixed bracket main body and the movable bracket have a plurality of openings, and the openings are arranged in one or more rows in a direction parallel to the axis of the rotating shaft.

As a further preferable technical scheme of the utility model, the arc angle corresponding to the arc surface with the smaller radius in the two arc surfaces is 90-270 degrees.

In order to achieve the above object, the present invention also provides a notebook computer, comprising: the mechanical rotating shaft is arranged on the frame.

Compared with the prior art, the mechanical rotating shaft has the following advantages by adopting the technical scheme:

1) the structure is more simplified;

2) the production process is less;

3) the processing difficulty is lower;

4) the product has better quality stability.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a mechanical spindle of the prior art;

FIG. 2 is an exploded view of a prior art mechanical spindle;

in fig. 1 to 2: 100. the first hardware, 200, the locating pin, 300, the pivot, 400, the rivet, 500, the second hardware is constituteed.

FIG. 3 is a schematic structural diagram of an embodiment of the mechanical hinge of the present invention;

FIG. 4 is an exploded view of an embodiment of the mechanical hinge of the present invention;

fig. 5 is a plan view of the spacing piece.

In fig. 3 to 5: 1. the movable support comprises a movable support 11, a movable support main body 12, vertical lugs 13, a movable support reinforcing arm plate 2, a rotating shaft 3, a fixed support 31, a fixed support main body 32, a shaft sleeve 33, a fixed support reinforcing arm plate 34, a limiting step 4 and a limiting sheet;

the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific embodiments. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for clarity of description only, and are not used to limit the scope of the utility model, and the relative relationship between the terms and the terms is not changed or modified substantially without changing the technical content of the utility model.

As shown in fig. 3 to 5, the present invention provides a mechanical rotating shaft, which can be used for rotatably connecting components of products such as a notebook computer, a flip phone, etc., and can bear both bending moment and torque during rotation, and comprises a movable bracket 1, a fixed bracket 3, a rotating shaft 2 and a limiting piece 4, wherein the movable bracket 1 has a movable bracket main body 11 of a planar metal sheet, one side of the movable bracket main body 11 is vertically bent to form a vertical lug 12, the fixed bracket 3 has a fixed bracket main body 31 of a planar metal sheet, one side of the fixed bracket main body 31 is wound to form a shaft sleeve 32, the rotating shaft 2 is rotatably disposed in the shaft sleeve 32, and both ends of the rotating shaft 2 extend out of the shaft sleeve 32, one end of the rotating shaft 2 is fixedly connected with the limiting piece 4 attached to the end of the shaft sleeve 32, the other end extends out and is fixedly connected with the vertical lug 12, both the movable bracket main body 11 and the fixed bracket main body 31 are provided with openings, the movable bracket body 11 and the fixed bracket body 31 are fixedly connected with parts of the product through screws passing through various openings, respectively, to realize relative rotation between the parts of the product, such as a door opening operation.

The outer peripheral surface of the limiting piece 4 is formed by splicing two arc surfaces with different radiuses, the circle centers of circles where the two arc surfaces are located on the central axis of the rotating shaft 2, one side of the fixed support 3 extends and is located on the side surface of the limiting piece 4 to form a limiting step 34, the distance between the limiting step 34 and the central axis of the rotating shaft 2 is smaller than the radius of one arc surface and larger than the radius of the other arc surface, and the angle of the movable support 1, which rotates relative to the fixed support 3 through the rotating shaft 2, is the arc angle corresponding to the arc surface with the smaller radius.

In specific implementation, both ends of the rotating shaft 2 are respectively and fixedly connected with the vertical lug 12 and the limiting piece 4 in riveting, welding or nut locking connection modes. The riveting connection can be completed through special machine equipment, riveting is realized through the special machine equipment, and the stability is more controllable and good in consistency; the nut is locked and connected, so that the assembly and disassembly are more convenient. In this case, the caulking method is preferable.

Preferably, a movable bracket reinforcing arm plate 12 is horizontally or bent and extended from one side of the movable bracket 1 close to the vertical lug 12 toward one side of the fixed bracket 3, an opening is also formed in the movable bracket reinforcing arm plate 12, and the movable bracket reinforcing arm plate 12 is fixedly connected with a part or a main part of a product through a screw passing through the opening, so that the connection strength of the movable bracket 1 can be improved, and the capability of bearing bending moment and torque can be improved.

Further preferably, one side of the fixing bracket 3, which is far away from the shaft sleeve 32, extends horizontally or bends towards the direction far away from the shaft sleeve 32 to form a fixing bracket reinforcing arm plate 33, the fixing bracket reinforcing arm plate 33 is also provided with an opening, and the fixing bracket reinforcing arm plate 33 is fixedly connected with a part or a main part of a product through the opening by a screw, so that the connection strength of the fixing bracket 3 can be improved, and the capacity of bearing bending moment and torque of the fixing bracket can be improved.

In one embodiment, the openings of the fixed bracket body 31 and the movable bracket 1 are plural and are arranged in one or more rows along the axial direction parallel to the rotating shaft 2.

In another specific implementation, the arc angle corresponding to the arc surface with the smaller radius in the two arc surfaces is 90-270 degrees, the angle of the movable bracket 1 rotating relative to the fixed bracket 3 is consistent with the angle, and the limiting sheet 4 with different rotating requirements can be selectively designed according to different product requirements.

In one embodiment, the mechanical rotating shaft is assembled by riveting as follows:

first, the rotating shaft 2 is assembled to the movable holder 1 during manufacturing, and then the movable holder 1 and the rotating shaft 2 are placed in a special jig, and are riveted and fixed into a whole by a spin riveting machine, and at this time, the movable holder 1 and the rotating shaft 2 form a semi-finished product (hereinafter, this semi-finished product will be referred to as "a" component in the description) and the next assembling process is performed.

And then the fixed support 3 and the limiting sheet 4 are sequentially arranged in the part A and are placed in a special jig, the fixed support 3, the limiting sheet 4 and the part A are riveted into a finished body through a spin riveting machine, and the assembly work of the whole mechanical rotating shaft is finished formally.

In the process, a spin riveting link becomes a key, and because the link is completed by a machine, the riveting stability is more controllable and consistent and better. Compared with the contrast patent of the background art, because this application has cancelled locating pin and rivet two parts among the old product (fig. 1 and fig. 2), has saved the low efficiency link and the unstable factor of riveting of assembly process to improve the reliability of product, and improved the quality of product and reduced manufacturing cost.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims.

Claims

1. The mechanical rotating shaft is characterized by comprising a movable support, a fixed support, a rotating shaft and a limiting piece, wherein the movable support is provided with a movable support main body made of a planar metal sheet, one side of the movable support main body is perpendicularly bent to form a vertical lug, the fixed support is provided with a fixed support main body made of a planar metal sheet, one side of the fixed support main body is wound to form a shaft sleeve, the rotating shaft is rotatably arranged in the shaft sleeve, two ends of the rotating shaft extend out of the shaft sleeve, one end of the rotating shaft is fixedly connected with the limiting piece attached to the end part of the shaft sleeve, the other end of the rotating shaft extends out of the vertical lug, and the movable support main body and the fixed support main body are provided with holes;

2. The mechanical rotary shaft according to claim 1, wherein both ends of the rotary shaft are respectively and fixedly connected with the vertical lug and the limiting plate by riveting, welding or nut locking connection.

3. The mechanical hinge according to claim 1, wherein a movable bracket reinforcing arm plate is formed on one side of the movable bracket close to the vertical lug and extending horizontally or in a bent manner towards one side of the fixed bracket, and the movable bracket reinforcing arm plate is also provided with an opening.

4. The mechanical rotating shaft according to claim 1, wherein a fixing bracket reinforcing arm plate is formed on the fixing bracket in a horizontal or bending extending manner from one side of the fixing bracket far away from the shaft sleeve to the direction far away from the shaft sleeve, and the fixing bracket reinforcing arm plate is also provided with an opening.

5. The mechanical hinge according to claim 1, wherein the openings of the fixed bracket main body and the movable bracket are plural and are arranged in one or more rows in a direction parallel to the axis of the rotating shaft.

6. A mechanical shaft according to any of claims 1 to 5, wherein the arc angle of the smaller of the two arc surfaces is 90-270 degrees.

7. A notebook computer, comprising: a mechanical shaft as claimed in any one of claims 1 to 6.