CN217107816U - Rotating shaft device - Google Patents

Abstract

The utility model discloses a rotating shaft device, it includes axle sleeve, pivot, cam, concave wheel, first elastic component and second elastic component, the pivot with cam fixed connection wears to locate in the axle sleeve, concave wheel is movably worn to locate the pivot face in the cam, first elastic component is located in the axle sleeve and both ends respectively the butt in keeping away from of concave wheel one side of cam with the one end of axle sleeve, the second elastic component is fixed in the inner wall of axle sleeve and one end butt in concave wheel, the second elastic component is right concave wheel produces all the time along its radial effort. The utility model discloses utilize the bounce-back force that the compression of second elastic component produced to absorb the clearance between concave wheel and the axle sleeve, guarantee the pivot can all realize at any angle with the firm contact of axle sleeve, can not produce the virtual problem of shaking, improve user experience to stability is good, low in production cost.

Description

Rotating shaft device

Technical Field

The utility model relates to a clearance fit's revolution mechanic especially relates to a can solve pivot device that pivot was shaken the problem.

Background

Flip-top products, such as notebook computers and TWS (true Wireless stereo) earphone boxes, use a hinge device as a pivot positioning structure, and for example, a hinge device is used between a display and a main body of the notebook computer and between an outer cover and a base of the TWS earphone box to achieve the function of stably opening, closing or adjusting a rotation angle of the display or the outer cover.

At present, the pivot device on the market, its pivoted torsion is provided by spring compression bounce, nevertheless because there is 0.01 ~ 0.03mm clearance because of equipment and tolerance between axle sleeve and the concave wheel, consequently can lead to the virtual problem of shaking of different degrees, and is especially obvious when the pivot is opened 90, and user experience effect is poor. The current common way to improve the problem of open-close sloshing is to improve the precision of parts, but the corresponding cost can be multiplied, thus being not beneficial to mass production.

Therefore, it is necessary to provide a hinge device capable of ensuring that the opening and closing are not shaken and the production cost is low, so as to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can guarantee to open and shut not shake and low in production cost's pivot mechanism by mistake.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a rotating shaft device, it includes axle sleeve, pivot, cam, concave wheel, first elastic component and second elastic component, wherein, the pivot with cam fixed connection wears to locate in the axle sleeve, concave wheel movably wear to locate in the pivot and face in the cam, first elastic component is located in the axle sleeve and both ends respectively butt in the concave wheel keep away from one side of cam with the one end of axle sleeve, the second elastic component is fixed in the inner wall of axle sleeve and one end butt in the concave wheel, the second elastic component is right the concave wheel produces all the time along its radial effort.

Preferably, the second elastic member includes a first elastic arm and a second elastic arm, the first elastic arm is fixed on the inner wall of the sleeve, the second elastic arm protrudes toward the rotating shaft and abuts against the concave wheel, and the second elastic arm is in a compressed state, and the concave wheel is pushed by the rebound force generated by the second elastic member to always abut against the inner wall of the sleeve, so that the gap between the cam and the sleeve is 0mm, and thus, when the rotating shaft is opened, the problem of virtual shaking cannot be caused.

Preferably, the inner wall of the shaft sleeve is provided with a groove corresponding to the shape of the second elastic member, and the second elastic member is fixed in the groove.

Preferably, the force value of the second elastic member is about 1/3 of the first elastic member, so that the influence of the large spring force of the second elastic member on the rotating force of the rotating shaft can be prevented.

Preferably, a convex portion is arranged on a side surface of the cam, a concave portion corresponding to the convex portion is arranged on a side surface of the concave wheel adjacent to the cam, when the convex portion and the concave portion are staggered, the rotating shaft drives the cam to rotate, so that the cam pushes the concave wheel to slide along the axial direction of the rotating shaft, and further the first elastic piece is extruded, and when the convex portion and the concave portion are embedded, the convex portion is kept in the concave portion by elastic force of the first elastic piece, so that the rotating shaft is positioned.

Preferably, two sides of the protruding portion are provided with first inclined surfaces, two sides of the recessed portion are provided with second inclined surfaces, and when the cam rotates, the concave wheel is pushed to slide through interaction of the first inclined surfaces and the second inclined surfaces.

Preferably, the rotating shaft device further comprises a buckle, one end of the rotating shaft, which is far away from the cam, is provided with a positioning groove protruding out of the shaft sleeve, and the buckle is clamped in the positioning groove.

Preferably, the rotating shaft device further comprises a connecting seat, the connecting seat is fixed on the rotating shaft or the cam and is located outside the shaft sleeve, and a connecting hole is formed in the connecting seat.

Preferably, the protruding stopper that is equipped with of end wall of axle sleeve, the stopper is followed the protruding stretching of axial of pivot, the cam be located be equipped with on the lateral wall outside the axle sleeve along its radial protruding butt piece of stretching, through butt piece with the butt of stopper is in order to right the rotation of pivot is carried on spacingly.

Preferably, the first elastic member is a spring, and the second elastic member is a spring plate.

Compared with the prior art, because the utility model discloses a rotating shaft device sets up the second elastic component through the inner wall at its axle sleeve, the one end butt of this second elastic component in concave wheel, and the second elastic component is right concave wheel produces all the time along its radial effort, and the bounce that utilizes the compression of second elastic component to produce absorbs the clearance between concave wheel and the axle sleeve, makes and remains zero clearance fit all the time between concave wheel and the axle sleeve, guarantees that the pivot can all realize with the firm contact of axle sleeve at any angle, can not produce the virtual problem of shaking to stability is good, improves user experience, and it is low to adopt the second elastic component to solve the manufacturing cost who shakes the problem simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the rotating shaft device of the present invention.

Fig. 2 is an exploded view at an angle of fig. 1.

Fig. 3 is an exploded view from another angle of fig. 1.

Fig. 4 is a schematic cross-sectional view of fig. 1.

Fig. 5 is a cross-sectional view of fig. 1.

Fig. 6 is another cross-sectional view of fig. 1.

Fig. 7 is a schematic cross-sectional view of a shaft sleeve of a rotating shaft device according to the present invention, wherein a second elastic member is installed in the shaft sleeve.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout. The directional descriptions referred to in this application, such as the directional descriptions or positional relationships indicated above, below, left, right, front, rear, etc., are based on the directional descriptions or positional relationships shown in the drawings, and are only for convenience of describing the technical solutions or/and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application. The description of first, second, etc. merely serves to distinguish technical features and should not be interpreted as indicating or implying a relative importance or implying a number of indicated technical features or implying a precedence relationship between indicated technical features.

As shown in fig. 1-7, the hinge device 100 of the present invention is suitable for any device that needs to be opened and closed by rotation, such as a notebook computer, a TWS earphone box, a snap structure, etc., to solve the problem of shaking between two fitting gaps.

Referring to fig. 1-2, a rotating shaft device 100 of the present invention includes a shaft sleeve 110, a rotating shaft 120, a cam 130, a concave wheel 140, a first elastic member 150, and a second elastic member 160. The rotating shaft 120 is fixedly connected with the cam 130 and penetrates through the shaft sleeve 110, the concave wheel 140 movably penetrates through the rotating shaft 120 and abuts against the cam 130, the first elastic member 150 is arranged in the shaft sleeve 110, two ends of the first elastic member respectively abut against one side of the concave wheel 140, which is far away from the cam 130, and one end of the first elastic member is abutted against the concave wheel 140, and the second elastic member 160 is fixed on the inner wall of the shaft sleeve 110, and one end of the first elastic member abuts against the concave wheel 140, so that the second elastic member 160 always generates a radial acting force on the concave wheel 140.

Fig. 3-5 and fig. 7 are combined, wherein fig. 5 is a sectional view of the spindle device 100 along the axial direction of the spindle 120, and fig. 6 is a sectional view of the spindle device 100 along the axial direction perpendicular to the spindle 120. In the present invention, the shaft sleeve 110 is a hollow structure, one end of the shaft sleeve 110 is provided with an opening communicating with the inside thereof, as shown in fig. 2, the other end of the shaft sleeve 110 is provided with an end wall 112, as shown in fig. 3, the end wall 112 is provided with a through hole 113, as shown in fig. 7; the shaft sleeve 110 is further provided with a recess 114, as shown in fig. 3 and 7, the recess 114 is located outside the end wall 112 for mounting a rotating shaft 120, which will be described in detail later. The shaft 120 is inserted into the shaft sleeve 110 through the opening, and the other end of the shaft 120 is inserted into the insertion hole 113 and protrudes out of the shaft sleeve 110, and a buckle 170 (described in detail later) can be conveniently installed on the shaft 120 through the concave hole 114, so as to position the shaft 120.

In the present invention, the first elastic member 150 is preferably a spring, the first elastic member 150 is disposed on the rotating shaft 120, and two ends of the first elastic member are respectively abutted against the concave wheel 140 and the end wall 112. Of course, the first elastic member 150 is not limited to a spring as long as it can generate a force in the axial direction of the rotation shaft 120 to the concave wheel 140.

Referring to fig. 2 and 4-7, in an embodiment of the present invention, the inner wall of the sleeve 110 is provided with a groove 111 corresponding to the shape of the second elastic member 160, as shown in fig. 2 and 4-5, the second elastic member 160 is fixed in the groove 111, and one end of the second elastic member 160 protrudes toward the sleeve 110 and abuts against the concave wheel 140. Moreover, the force of the second elastic member 160 is about 1/3 of the first elastic member 150, which prevents the large elastic force of the second elastic member 160 from affecting the weak rotating force of the rotating shaft 120.

Referring to fig. 2-3 and 7, in an embodiment of the present invention, the second elastic member 160 includes a first elastic arm 161 and a second elastic arm 162, which are bent, and the first elastic arm 161 and the second elastic arm 162 are both sheet-shaped structures, and the second elastic arm 162 extends obliquely compared to the first elastic arm 161. Referring to fig. 7, when the second elastic member 160 is installed in the sleeve 110, the first elastic arm 161 is fixed in the groove 111 of the sleeve 110, the second elastic arm 162 is also accommodated in the groove 111 and protrudes toward the rotating shaft 120, and the second elastic arm 162 abuts against the concave wheel 140, after the installation, the second elastic arm 162 is in a compressed state, so that the concave wheel 140 is pushed by the rebound force (shown by the arrow in fig. 7) generated by the second elastic member 160 to be always abutted against the inner wall of the sleeve 110, and the gap between the concave wheel 140 and the sleeve 110 is 0mm, so that when the rotating shaft 120 rotates to open, the problem of false sway is not generated.

In the present invention, the second elastic member 160 is preferably a spring, but not limited thereto, and the shape of the second elastic member 160 is not limited to this embodiment, as long as it can generate the radial acting force to the concave wheel 140.

Referring to fig. 2-3, in the present invention, a protrusion 131 is disposed on a side surface of the cam 130, first inclined surfaces 132 are disposed on two sides of the protrusion 131, the two first inclined surfaces 132 are inclined from a bottom of the protrusion 131 to a top thereof, and the cam 130 pushes the concave wheel 140 through the first inclined surfaces 132 to slide along an axial direction of the rotating shaft 120 when rotating, as will be described later.

Correspondingly, the side of the concave wheel 140 adjacent to the cam 130 is provided with a concave part 141 corresponding to the convex part 131, as shown in fig. 2; and the two sides of the concave part 141 are provided with second inclined surfaces 142, and the second inclined surfaces 142 are inclined and expanded from the bottom of the concave part 141 to the top thereof, so that the concave part 141 can be engaged with the convex part 131.

Referring to fig. 2-5, when the protruding portion 131 and the recessed portion 141 are dislocated, the rotation of the rotating shaft 120 drives the cam 130 to rotate synchronously, and the cam 130 pushes the concave wheel 140 through the protruding portion 131 thereon, so that the concave wheel 140 slides along the axial direction of the rotating shaft 120 to extrude the first elastic member 150, and the first elastic member 150 compresses to generate a rebound force to provide a rotating torque. When the protruding portion 131 and the recessed portion 141 are rotated to correspond to each other, the protruding portion 131 is engaged with the recessed portion 141, and the elastic force of the first elastic member 150 keeps the protruding portion 131 in the recessed portion 141 to position the rotating shaft 120. When the rotating shaft 120 rotates again to drive the cam 130 to rotate, the first inclined surface 132 of the protruding portion 131 pushes the second inclined surface 142 of the recessed portion 141, and the concave wheel 140 is driven to slide along the axial direction of the rotating shaft 120 again through the interaction of the inclined surfaces.

Referring to fig. 1-5 again, in an embodiment of the present invention, the rotating shaft device 100 further includes a buckle 170 and a connecting seat 180. The U-shaped slot 171 is disposed on the buckle 170, the annular positioning groove 121 is disposed at one end of the rotating shaft 120 away from the cam 130, after the installation, the end of the rotating shaft 120 having the positioning groove 121 protrudes out of the shaft sleeve 110, and then the buckle 170 is clamped in the positioning groove 121 from the concave hole 114 of the shaft sleeve 110, so as to prevent the rotating shaft 120 from being separated from the shaft sleeve 110, as shown in fig. 4-5. In the utility model discloses in, one side of keeping away from its bellying 131 of cam 130 is located outside axle sleeve 110, and it is shown with reference to fig. 1, fig. 4-5, connecting seat 180 is fixed in one side that is located outside axle sleeve 110 of cam 130 to connecting hole 181 has been seted up on connecting seat 180, connecting seat 180 be used for with the part installation that needs rotatory opening and shutting. It is understood that the connection seat 180 is not limited to be fixed to the cam 130, and it is equally possible to fixedly connect it directly to the rotation shaft 120.

Referring to fig. 2-3 again, the end wall of the open end of the shaft sleeve 110 is convexly provided with a stop block 115, and the stop block 115 protrudes along the axial direction of the rotating shaft 120, as shown in fig. 2. Correspondingly, the side wall of the cam 130 located outside the shaft sleeve 110 is provided with an abutting block 133 protruding along the radial direction thereof, as shown in fig. 3, in the process of rotating the cam 130, the rotation of the cam 130 and the rotating shaft 120 is limited by the abutting of the abutting block 133 and the limiting block 115.

The assembly process of the hinge apparatus 100 of the present invention will be described with reference to fig. 1-7 again.

When assembling, the second elastic member 160 is first fixed in the shaft sleeve 110, that is, the second elastic member 160 is received in the groove 111 of the shaft sleeve 110, and the first elastic arm 161 is fixed in the groove 111 of the shaft sleeve 110, and the second elastic arm 162 is received in the groove 111 but protrudes toward the rotating shaft 120.

Then, the first elastic member 150 and the concave wheel 140 are sequentially installed in the sleeve 110, both ends of the first elastic member 150 respectively abut against the end wall 112 of the sleeve 110 and the concave wheel 140, and the side of the concave wheel 140 having the concave portion 141 faces the opening side of the sleeve 110. Then, the rotating shaft 120 is installed in the shaft sleeve 110, and the rotating shaft 120 sequentially passes through the concave wheel 140 and the first elastic member 150, one end of the rotating shaft 120 having the positioning slot 121 passes through the through hole 113 and protrudes out of the rotating shaft 120, at this time, one side of the cam 130 having the protrusion 131 is adjacent to one side of the concave wheel 140 having the depression 141, and the concave wheel 140 abuts against the second elastic arm 162, and the second elastic arm 162 is in a compressed state, so that the counter-elastic force generated by the second elastic member 160 pushes the concave wheel 140 to be always abutted against the inner wall of the shaft sleeve 110, thereby absorbing the gap between the concave wheel 140 and the shaft sleeve 110, and when the rotating shaft 120 is rotated to be opened, the problem of virtual shaking is not generated.

Finally, the buckle 170 is engaged with the positioning groove 121 from the concave hole 114 of the shaft sleeve 110, so as to prevent the rotating shaft 120 from being disengaged from the shaft sleeve 110, as shown in fig. 4-5.

In conclusion, because the utility model discloses a pivot mechanism 100, inner wall through at its axle sleeve 110 sets up second elastic component 160, the one end butt of this second elastic component 160 in concave wheel 140, and second elastic component 160 produces all the time along its radial effort to concave wheel 140, utilize the produced bounce of compression of second elastic component 160 to absorb the clearance between concave wheel 140 and the axle sleeve 110, make and keep zero clearance fit all the time between concave wheel 140 and the axle sleeve 110, guarantee that pivot 120 can all realize the firm contact with axle sleeve 110 at any angle, can not produce the virtual problem of shaking, and stability is good, improve user experience, adopt second elastic component 160 to solve the low in production cost who shakes the problem simultaneously.

The structure of the other parts of the rotating shaft device 100 according to the present invention is a conventional manner known to those skilled in the art, and will not be described in detail herein.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

1. The utility model provides a rotating shaft device, its characterized in that includes axle sleeve, pivot, cam, concave wheel, first elastic component and second elastic component, wherein, the pivot with cam fixed connection wears to locate in the axle sleeve, concave wheel movably wears to locate in the pivot and adjacent in the cam, first elastic component is located in the axle sleeve and both ends respectively butt in one side of keeping away from of concave wheel the cam with the one end of axle sleeve, the second elastic component is fixed in the inner wall of axle sleeve and one end butt in concave wheel, the second elastic component is to concave wheel produces all the time along its radial effort.

2. The hinge apparatus according to claim 1, wherein the second elastic member includes a first elastic arm and a second elastic arm, the first elastic arm is fixed to an inner wall of the sleeve, the second elastic arm protrudes toward the hinge and abuts against the concave wheel, and the second elastic arm is in a compressed state.

3. The hinge assembly of claim 2, wherein the inner wall of the sleeve is provided with a recess corresponding to the shape of the second elastic member, and the second elastic member is fixed in the recess.

4. Spindle means according to any one of claims 1-3, characterized in that the force value of the second elastic member is 1/3 of the first elastic member.

5. The rotating shaft device according to any one of claims 1 to 3, wherein a side surface of the cam is provided with a protruding portion, a side surface of the concave wheel adjacent to the cam is provided with a concave portion corresponding to the protruding portion, when the protruding portion and the concave portion are misaligned, the rotating shaft drives the cam to rotate, so that the cam pushes the concave wheel to slide along an axial direction of the rotating shaft, and further, the cam pushes the first elastic member, and when the protruding portion and the concave portion are engaged, an elastic force of the first elastic member keeps the protruding portion in the concave portion, so that the rotating shaft is positioned.

6. The spindle assembly according to claim 5, wherein the two sides of the protrusion are provided with first slopes, the two sides of the recess are provided with second slopes, and when the cam rotates, the first slope and the second slope interact with each other to push the concave wheel to slide.

7. The rotating shaft device according to any one of claims 1 to 3, further comprising a buckle, wherein one end of the rotating shaft, which is far away from the cam, is provided with a positioning groove protruding out of the shaft sleeve, and the buckle is buckled in the positioning groove.

8. The rotating shaft device according to any one of claims 1 to 3, further comprising a connecting seat, wherein the connecting seat is fixed to the rotating shaft or the cam and located outside the shaft sleeve, and a connecting hole is formed in the connecting seat.

9. The rotating shaft device according to any one of claims 1 to 3, wherein a limiting block is convexly provided on an end wall of the shaft sleeve, the limiting block protrudes in the axial direction of the rotating shaft, an abutting block protruding in the radial direction is provided on a side wall of the cam located outside the shaft sleeve, and the rotation of the rotating shaft is limited by the abutting of the abutting block and the limiting block.

10. The spindle assembly according to any one of claims 1 to 3, wherein the first elastic member is a spring and the second elastic member is a leaf spring.

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