CN217784005U - Double-shaft synchronizing mechanism applied to portable electronic equipment - Google Patents

Abstract

The utility model provides a double-shaft synchronizing mechanism applied to portable electronic equipment, wherein a left shaft and a right shaft are respectively provided with a lead screw with the same central axis; the left shaft sleeve and the right shaft sleeve are in threaded connection with the left screw rod and the right screw rod respectively, the left shaft sleeve is connected with the right shaft sleeve, and the spiral directions of the left screw rod and the right screw rod are opposite, so that when the left shaft and the right shaft rotate synchronously and reversely, and the left shaft sleeve and the right shaft sleeve can only synchronously move axially along the left shaft and the right shaft at the same speed and in the same direction. The utility model can reduce the space requirement of the synchronous mechanism, thereby designing a double-shaft rotating shaft with smaller size, and the structural size of the middle connecting section of the screw shaft sleeve can be about 1mm, and when the utility model is applied to a flexible folding rotating shaft, the folding thickness of the flexible screen can be reduced; when the flexible inward folding rotary shaft is applied to the flexible inward folding rotary shaft, the folding thickness of the flexible screen can be made smaller. The utility model discloses simplify lazytongs, reduce cost has improved the packaging efficiency.

Description

Double-shaft synchronizing mechanism applied to portable electronic equipment

Technical Field

The utility model relates to a be applied to portable electronic equipment's biax lazytongs, portable electronic equipment can be cell-phone, notebook computer etc..

Background

For a double-shaft synchronization mechanism applied to portable electronic equipment, at present, a gear connection mechanism is mostly adopted, generally, four gears are required to be meshed and connected in sequence to keep the synchronous reverse rotation requirement of the double-shaft portable electronic equipment, and meanwhile, the thickness of the portable electronic equipment during flattening is reduced as much as possible. However, four gears are needed, the distance between two shafts of the gears is large, and the space requirement of the synchronizing mechanism is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a be applied to portable electronic equipment's biax lazytongs is provided, can not use gear mechanism, realize the synchronous antiport of biax simultaneously, reduce lazytongs's space demand. Therefore, the utility model adopts the following technical scheme:

a double-shaft synchronization mechanism applied to portable electronic equipment comprises a left shaft and a right shaft which are parallel to each other, and is characterized in that the left shaft and the right shaft are respectively provided with a left screw rod which is the same as the left shaft in central axis and a right screw rod which is the same as the right shaft in central axis; the double-shaft synchronizing mechanism is characterized in that a left shaft sleeve and a right shaft sleeve are further arranged, the left shaft sleeve and the right shaft sleeve are respectively in threaded connection with a left screw rod and a right screw rod, the left shaft sleeve is connected with the right shaft sleeve, the spiral directions of the left screw rod and the right screw rod are opposite, so that when the left screw rod and the right screw rod rotate, the left shaft and the right shaft can only rotate in a synchronous and opposite direction, and the left shaft sleeve and the right shaft sleeve can only move in the same direction along the axial direction of the left shaft and the right shaft in a synchronous and same speed mode.

On the basis of adopting above-mentioned technical scheme, the utility model discloses still can adopt following further technical scheme, or to these further technical scheme combined use:

the left screw rod is the section of the left shaft provided with the threads, and the right screw rod is the section of the right shaft provided with the threads.

The left shaft sleeve and the right shaft sleeve and the connecting structure between the left shaft sleeve and the right shaft sleeve are manufactured into a whole; or the connecting structure between the left shaft sleeve and the right shaft sleeve is manufactured into a whole with one of the left shaft sleeve and the right shaft sleeve, and the connecting structure is connected with the other one of the left shaft sleeve and the right shaft sleeve through a mechanical connecting structure; alternatively, the connection structure between the left and right bushings is divided into two parts, which are manufactured as one body with the left and right bushings, respectively, and the two parts are connected by a mechanical connection structure.

Be provided with left linking arm and right linking arm, left side axle and left linking arm are connected, right side axle and right linking arm are connected for left linking arm and the synchronous antiport of right linking arm.

The left shaft and the right shaft are provided with steps and/or grooves for axial positioning, and the steps and/or grooves are matched with the limiting part, so that the left shaft and the right shaft can only rotate but cannot move in the axial direction.

The left shaft and the right shaft are respectively connected with a torsion mechanism which is used for providing rotation resistance.

The utility model discloses utilize the biax to be the principle of lead screw motion simultaneously and realize the synchronous antiport of biax, have following advantage:

1) The space limitation of a conventional synchronous mechanism is broken through, the space requirement of the synchronous mechanism can be reduced, so that a double-shaft rotating shaft with a smaller size can be designed, the structural size of the middle connecting section of the screw shaft sleeve can be only about 1mm, and the flexible folding rotating shaft is applied to a flexible folding rotating shaft, so that the folding thickness of a flexible screen can be reduced; when the flexible inward folding rotary shaft is applied to the flexible inward folding rotary shaft, the folding thickness of the flexible screen can be made smaller;

2) The synchronous mechanism is simplified, the number of the matching pieces is reduced, and the matching virtual positions among all parts can be reduced;

3) The synchronous mechanism is simplified, the cost is reduced, and the assembly efficiency is improved.

Drawings

Fig. 1 is an exploded view of an embodiment provided by the present invention.

Fig. 2 is a side view of the embodiment of fig. 1 in a flattened state.

Fig. 3 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 2.

FIG. 4 is a top view of the embodiment of FIG. 1 in a flattened state.

Fig. 5 is a schematic view of the embodiment of fig. 1 in a flattened state, looking outward from the inner end.

Fig. 6 is a top view of the embodiment of fig. 1 in a closed position.

Fig. 7 is a schematic view of the embodiment of fig. 1 in a closed position, looking outward from the inner end.

Detailed Description

Reference is made to the accompanying drawings. The utility model provides a be applied to portable electronic equipment's biax lazytongs, including left axle 1 and right axle 2 that are parallel to each other, left axle 1 and right axle 2 set up respectively with left axle 1 with the central axis the left lead screw 10 of axle and with right axle 2 concentric right lead screw 20; biax lazytongs still sets up left axle sleeve 3 and right axle sleeve 4, left side axle sleeve 3 and right axle sleeve 4 set up the internal thread, respectively with left lead screw 10 and right lead screw 20 threaded connection, left side axle sleeve 10 and right axle sleeve 20 are connected, the spiral direction of left side lead screw 10 and right lead screw 20 is opposite, and left side axle sleeve 10 and right axle sleeve 20 are restraint parts, and left side axle 1 and right axle 2 must synchronous antiport just can take place the rotation of axle, and at this moment, left side axle sleeve 10 and right axle sleeve 20 are synchronous with the syntropy along the axial displacement of left side axle 1 and right axle 2 respectively. With this configuration, the distance between the left shaft 1 and the right shaft 2 can be very close to each other without being restricted by the conventional intermediate gear.

In implementation, the screw rod may be formed by directly machining a thread on a shaft, the left screw rod 10 is a section of the left shaft 1 where the thread is provided, and the right screw rod 20 is a section of the right shaft 2 where the thread is provided.

The intermediate connection section between the two shaft sleeves 10, 20, i.e., the structure for connecting the two shaft sleeves into a whole, may take various forms and be flexibly applied to various biaxial shafts as required. For example, in the present embodiment, the left and right bosses 10 and 20 and the connection structure 7 (e.g., a plate-like or strip-like connection structure) between the left and right bosses 10 and 20 are manufactured as one body. Or, the connection structure between the left shaft sleeve 10 and the right shaft sleeve 20 and the left shaft sleeve (or the right shaft sleeve) are manufactured as a whole, and the connection structure and the right shaft sleeve (or the left shaft sleeve) are connected through a mechanical connection structure (such as a structure of inserting, welding, clamping and the like); alternatively, the connection structure between the left and right bushings 10 and 20 is divided into two parts, which are integrally manufactured with the left and right bushings 10 and 20, respectively, and are connected by a mechanical connection structure (such as a plug-in, welding, snap-in, etc.).

The synchronous connection structure may be provided with a left connection arm 5 and a right connection arm 6, which generally refer to a bracket, a plate, a lever, etc. having a certain length and strength and being configured with a certain connection position and being capable of functioning as a connection with other structures on the left and right sides in the portable electronic device. The left side axle 1 is connected with left linking arm 5, right side axle 2 and right linking arm 6 for left linking arm 5 and the synchronous antiport of right linking arm 6.

The left shaft 1 and the right shaft 2 are provided with steps and/or grooves for axial positioning, so that the left shaft 1 and the right shaft 2 can only rotate but can not move in the axial direction. Adopt following structure in this embodiment, the inner of left side axle 1 and right axle 2 sets up step 81 and draw-in groove 82, and draw-in groove 82 more is close to the inner of axle, biax synchronizing mechanism sets up positioning element 8, positioning element 8 is connected with portable mobile electronic device's middle part casing or mount, positioning element 8 sets up left location portion 83 and right location portion 84, left side location portion 83 and right location portion 84 overlap respectively outside the shaft section between step 81 and the draw-in groove 82 of left side axle 1 and right axle 2, and left side and right side buckle 85 are connected with the draw-in groove 82 of left side axle and right axle respectively, and respectively with the spacing cooperation of left location portion 83 and right location portion 84. It should be understood that there are other ways of axial positioning of the left and right shafts 1, 2.

The left shaft 1 and the right shaft 2 are respectively connected with a torsion mechanism, and the torsion mechanisms are used for providing rotation resistance. In the embodiment, the structure is adopted, a plurality of disc reeds 90 sleeved on the left shaft 1 and the right shaft 2 are locked by nuts 93 in threaded connection with the shafts, the fixed frame 9 is sleeved on the left shaft 10 and the right shaft 20, the fixed frame 9 is provided with parts 91 and 92 sleeved on the left shaft and the right shaft, steps on the shafts are taken as supports, and the parts 51 and 61, sleeved outside the shafts, of the left connecting arm 5 and the right connecting arm 6 are respectively pressed with the parts 91 and 92 on the fixed frame 9 by the disc reeds 90 and are in friction fit. It should be understood that the torsion mechanism can be implemented in other ways.

The utility model discloses a biax lazytongs can use at flexible screen mobile terminal, left side linking arm and right linking arm can connect flexible screen mobile terminal's left side casing and right side casing or the other motion on left side and right side respectively. The double-shaft synchronization mechanism can also be applied to other double-shaft mobile phones, notebook computers and other portable electronic equipment.

The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art is in the field of the present invention, and all the changes or modifications are covered in the protection scope of the present invention.

It is to be understood that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the invention and the above-described drawings are intended to cover non-exclusive inclusions. The terms "mounted," "disposed," "provided," "connected," and "coupled" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "the inside", "the level", "the end", "the length", "the outer end", "the left", "the right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. The terms "first" and "second" are also used for brevity in the description only and are not intended to indicate or imply relative importance.

Furthermore, variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure, and the appended claims. Furthermore, in the claims, the specification, the words "comprise", "comprising", and the like, do not exclude other elements or steps, and non-plural nouns do not exclude plural forms thereof.

Claims (6)

1. A double-shaft synchronization mechanism applied to portable electronic equipment comprises a left shaft and a right shaft which are parallel to each other, and is characterized in that the left shaft and the right shaft are respectively provided with a left screw rod which is the same as the left shaft in central axis and a right screw rod which is the same as the right shaft in central axis; the double-shaft synchronizing mechanism is characterized in that a left shaft sleeve and a right shaft sleeve are further arranged, the left shaft sleeve and the right shaft sleeve are respectively in threaded connection with a left screw rod and a right screw rod, the left shaft sleeve is connected with the right shaft sleeve, the spiral directions of the left screw rod and the right screw rod are opposite, so that when the left screw rod and the right screw rod rotate, the left shaft and the right shaft can only rotate in a synchronous and opposite direction, and the left shaft sleeve and the right shaft sleeve can only move in the same direction along the axial direction of the left shaft and the right shaft in a synchronous and same speed mode.

2. The dual-axis synchronizing mechanism applied to a portable electronic device as claimed in claim 1, wherein the left lead screw is a section of the left shaft provided with threads, and the right lead screw is a section of the right shaft provided with threads.

3. The dual axis synchronizing mechanism applied to a portable electronic device according to claim 1, wherein the left and right bushings and the connecting structure between the left and right bushings are manufactured as one body; or, the connecting structure between the left shaft sleeve and the right shaft sleeve is manufactured into a whole with one of the left shaft sleeve and the right shaft sleeve, and the connecting structure is connected with the other one of the left shaft sleeve and the right shaft sleeve through a mechanical connecting structure; alternatively, the connection structure between the left and right bushings is divided into two parts, which are manufactured as one body with the left and right bushings, respectively, and the two parts are connected by a mechanical connection structure.

4. The dual-axis synchronization mechanism applied to the portable electronic device as claimed in claim 1, wherein a left connecting arm and a right connecting arm are provided, the left axis is connected with the left connecting arm, and the right axis is connected with the right connecting arm, so that the left connecting arm and the right connecting arm rotate in opposite directions synchronously.

5. The dual-axis synchronizing mechanism applied to the portable electronic device as claimed in claim 1, wherein the left and right axes are provided with steps and/or grooves for axial positioning, and the steps and/or grooves are engaged with the position-limiting member to allow the left and right axes to rotate only but not move in the axial direction.

6. The dual-axis synchronization mechanism applied to a portable electronic device as claimed in claim 1, wherein the left and right axes are respectively connected to a torsion mechanism, the torsion mechanism is used for providing rotation resistance.

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