CN220910437U - Gap adjusting mechanism and cradle head - Google Patents

Abstract

The application provides a gap adjusting mechanism, which comprises a worm wheel and a worm which are meshed, an eccentric sleeve with the inner periphery provided with the worm, and an adjusting piece pushing the eccentric sleeve to rotate from the outer periphery of the eccentric sleeve; the central axis of the inner periphery of the eccentric sleeve is deviated from the central axis of the outer periphery of the eccentric sleeve, and the adjusting piece drives the eccentric sleeve to rotate so as to adjust the gap between the turbine and the worm. According to the application, the eccentric sleeve with the central axis of the inner periphery deviated from the central axis of the outer periphery is arranged, so that the thickness of the side wall of the eccentric sleeve is different, the worm is arranged on the inner periphery of the eccentric sleeve, and when the adjusting piece pushes the eccentric sleeve to rotate, the gap between the turbine and the worm can be adjusted, thereby improving the transmission precision.

Description

Gap adjusting mechanism and cradle head

Technical Field

The application relates to the technical field of electronic equipment supporting devices, in particular to a gap adjusting mechanism and a cradle head.

Background

In devices such as cloud platform that are used for supporting electronic equipment, the supporting bench of installation electronic equipment needs adjustment use angle, and angle regulation's structure can have a variety, including but not limited to universal ball structure, worm gear structure, wherein, when adopting the worm gear structure to adjust the supporting bench, the clearance between worm wheel and the worm is too big, can influence the transmission precision, leads to the knob that links to each other with the worm to appear becoming flexible.

For this reason, it is necessary to provide a gap adjusting mechanism and a tripod head to reduce the gap between the worm wheel and the worm.

Disclosure of utility model

In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide a clearance adjustment mechanism and a tripod head for reducing a clearance between a worm wheel and a worm.

According to an embodiment of the present utility model, there is provided a first aspect of: a gap adjusting mechanism comprising a worm wheel and a worm, wherein the worm wheel is meshed with the gap adjusting mechanism, the gap adjusting mechanism further comprises an eccentric sleeve, the inner periphery of which is provided with the worm, and an adjusting piece, the adjusting piece pushes the eccentric sleeve to rotate from the outer periphery of the eccentric sleeve; the central axis of the inner periphery of the eccentric sleeve is deviated from the central axis of the outer periphery of the eccentric sleeve, and the adjusting piece drives the eccentric sleeve to rotate so as to adjust the gap between the turbine and the worm.

Preferably, a pushing groove is formed in the periphery of the eccentric sleeve, and the adjusting piece extends into the pushing groove along the axial direction of the turbine so as to push the eccentric sleeve to rotate.

Preferably, the periphery of the adjusting member is provided with threads.

Preferably, the adjustment member pushes the eccentric sleeve on the side of the worm screw facing away from the worm wheel.

Preferably, the worm includes a mounting portion at one axial end, the mounting portion being provided with a mounting hole extending in the axial direction.

Preferably, the mounting portion includes mounting surfaces on opposite sides thereof, the mounting surfaces being planar.

Preferably, the side part of the eccentric sleeve is further provided with an avoidance hole, and the turbine extends into the avoidance hole and is meshed with the worm.

The utility model further provides a holder, which comprises the gap adjusting mechanism, a knob fixed with the worm and a support table fixed with the turbine.

The utility model further provides a holder, which comprises the gap adjusting mechanism, wherein the holder is further provided with a mounting hole for mounting the adjusting piece, and the mounting hole is in threaded connection with the adjusting piece.

The utility model has the following beneficial effects:

Through setting up the eccentric sleeve that the axis of inner periphery and the axis of periphery deviate mutually for eccentric sleeve's lateral wall thickness is different, installs the worm at eccentric sleeve's inner periphery, and when the regulating part promoted eccentric sleeve rotation, just can adjust the clearance of turbine and worm, thereby improves transmission precision.

Drawings

FIG. 1 is a perspective view of a lash adjustment mechanism according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a lash adjustment mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a lash adjustment mechanism according to an embodiment of the present utility model, viewed along the axial direction of the worm;

fig. 4 is a schematic structural diagram of a pan-tilt head according to an embodiment of the utility model;

Fig. 5 is an enlarged view at a in fig. 4.

Reference numerals: 100. a gap adjusting mechanism; 200. a cradle head; 10. a turbine; 20. a worm; 21. a mounting part; 211. a mounting hole; 212. a mounting surface; 30. an eccentric sleeve; 31. a pushing groove; 32. avoidance holes; 40. an adjusting member; 50. a knob; 60. a support table; 70. a mounting hole;

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is noted that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "are used to refer to the terms" length "," width "," upper "," lower "," front "," rear "," left "," right "," vertical "," and "lower".

The horizontal, vertical, top, bottom, inner, outer, etc. references to orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and are not intended to indicate or imply that the apparatus or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a gap adjustment mechanism 100, where the gap adjustment mechanism 100 includes: turbine 10, worm 20, eccentric sleeve 30, and adjustment member 40. Wherein the worm wheel 10 is engaged with the worm 20, the worm 20 is installed at the inner circumference of the eccentric sleeve 30, and the adjusting member 40 is used to push the eccentric sleeve 30 to rotate from the outer circumference of the eccentric sleeve 30. Referring to fig. 3, fig. 3 is a schematic view of the gap adjusting mechanism 100 as seen in the axial direction of the worm 20, in which it can be seen that the central axis of the inner circumference of the eccentric sleeve 30 is clearly offset from the central axis of the outer circumference thereof, resulting in a variation in the thickness of the annular sidewall of the eccentric sleeve 30, so that the gap between the turbine 10 and the worm 20 can be adjusted by rotating the eccentric sleeve 30.

In a preferred embodiment, referring to fig. 1 to 3, the outer circumference of the eccentric sleeve 30 is provided with a pushing groove 31, and the adjusting member 40 is extended into the pushing groove 31 in the axial direction of the worm wheel 10 to push the eccentric sleeve 30 to rotate, thereby reducing the gap between the worm wheel 10 and the worm 20 to improve the transmission accuracy of the worm wheel 10 and the worm 20.

In a preferred embodiment, the periphery of the adjusting member 40 is provided with threads, in this embodiment, the adjusting member 40 is connected to a screw hole on the device by threads, so that the connecting position is stable, the structure is simple, the adjustment is convenient, and the precision is adjustable. The adjusting member 40 may be a fastener such as a screw, for example, when the adjusting member 40 is a screw, if a user finds that the turbine 10 and the worm 20 are in loose fit, the eccentric sleeve 30 may be pushed to rotate by tightening the screw, so as to conveniently and efficiently adjust the gap between the turbine 10 and the worm 20, and tighten the turbine 10 and the worm 20.

In some other embodiments, the adjusting member may also include a connecting portion and an extension rod portion, the connecting portion is provided with threads, the extension rod portion may not be provided with threads, and the extension rod portion may be conveniently manually rotated and adjusted by a user without using tools such as a screwdriver.

It will be appreciated that in some other embodiments, the adjustment member 40 may be a piston rod, a push rod, or some other pushing structure without threads.

In a specific embodiment, referring to fig. 3, the adjustment member 40 pushes the eccentric sleeve 30 on the side of the worm 20 facing away from the worm wheel 10, and the axial direction of the worm 20 is perpendicular to the pushing direction of the adjustment member 40.

Of course, in some other embodiments, the axial direction of the worm 20 may be at an angle other than 90 ° to the pushing direction of the adjusting member 40, and may be slightly deflected.

In a preferred embodiment, the worm 20 includes a mounting portion 21, the mounting portion 21 being located at one axial end of the worm 20, the mounting portion 21 being provided with a mounting hole 70 extending in the axial direction.

In this embodiment, the mounting portion 21 may be used to mount a knob 50 or the like for manual adjustment, wherein the mounting hole 70 may be provided with internal threads to mount a fastener such as a screw.

In a preferred embodiment, referring to fig. 1-3, the mounting portion 21 includes mounting surfaces 212 on opposite sides thereof, the mounting surfaces 212 being planar to facilitate mounting of the knob 50 and the like, and to avoid complete curved contact between the external components and the mounting portion 21 to avoid relative rotation to effect rotational adjustment of the worm 20.

In a preferred embodiment, and with reference to fig. 1, the worm 20 comprises a toothed portion which meshes with the worm wheel 10, the toothed portion being located in the eccentric sleeve 30, and the side of the eccentric sleeve 30 being further provided with a relief hole 32 for enabling the worm wheel 10 to mesh with the toothed portion, the worm wheel 10 extending into the relief hole 32 and meshing with the toothed portion of the worm 20.

Of course, in some other embodiments, the toothed portion may be disposed outside the eccentric sleeve 30, and the eccentric sleeve 30 need not be provided with the relief hole 32.

In a preferred embodiment, the present utility model also provides a cradle 200 employing the gap adjustment mechanism 100, and referring to fig. 4 and 5, the cradle 200 further includes a knob 50 fixed to the worm 20, and a support stand 60 fixed to the turbine 10.

In the present embodiment, the rotation of the worm 20 and the worm wheel 10 can be driven by rotating the knob 50 to adjust the angle of the support stand 60 from the circumferential direction of the worm wheel 10. Thereby changing the use angle of the electronic device mounted on the support stand 60.

In a preferred embodiment, referring to fig. 4 and 5, the cradle head 200 is further provided with a mounting hole 70 for mounting the adjusting member 40, and the mounting hole 70 is screw-coupled with the adjusting member 40. In the present embodiment, the eccentric sleeve 30 can be conveniently rotated by tightening the adjusting member 40, thereby reducing the gap between the worm wheel and the worm 20 to eliminate the looseness of the knob 50, thereby improving the transmission accuracy.

In this embodiment, the mounting hole 70 is opposite to the pushing slot 31, and the adjusting member 40 is mounted on the mounting hole 70 by threads, so that the adjusting member 40 is convenient to mount during production and assembly of the tripod head 200, on the other hand, when the tripod head 200 is used for a long time and is loosened, a user can conveniently rotate the adjusting member 40 outside without disassembling the tripod head 200, so as to adjust the gap between the worm wheel and the worm 20.

Therefore, through the eccentric sleeve 30 with the central axis of the inner periphery deviated from the central axis of the outer periphery, the thickness of the side wall of the eccentric sleeve 30 is different, the worm 20 is arranged on the inner periphery of the eccentric sleeve 30, and when the adjusting piece 40 pushes the eccentric sleeve 30 to rotate, the gap between the turbine 10 and the worm 20 can be adjusted, so that the transmission precision is improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A gap adjusting mechanism comprising a worm wheel and a worm, wherein the gap adjusting mechanism further comprises an eccentric sleeve with an inner periphery provided with the worm, and an adjusting piece pushing the eccentric sleeve to rotate from the outer periphery of the eccentric sleeve; the central axis of the inner periphery of the eccentric sleeve is deviated from the central axis of the outer periphery of the eccentric sleeve, and the adjusting piece drives the eccentric sleeve to rotate so as to adjust the gap between the turbine and the worm.

2. The gap adjusting mechanism according to claim 1, wherein a pushing groove is provided at an outer periphery of the eccentric sleeve, and the adjusting member extends into the pushing groove in an axial direction of the turbine to push the eccentric sleeve to rotate.

3. The lash adjustment mechanism of claim 2, wherein the outer circumference of the adjustment member is threaded.

4. The lash adjustment mechanism of claim 2, wherein the adjustment member urges the eccentric sleeve on a side of the worm screw facing away from the worm gear.

5. The lash adjustment mechanism of claim 1, wherein the worm includes a mounting portion at one axial end, the mounting portion being provided with an axially extending mounting hole.

6. The lash adjustment mechanism of claim 5, wherein the mounting portion includes mounting surfaces on opposite sides thereof, the mounting surfaces being planar.

7. The lash adjustment mechanism of any one of claims 1-6, wherein a relief hole is further provided in a side portion of the eccentric sleeve, and the worm wheel extends into the relief hole and engages the worm.

8. A pan-tilt comprising the gap adjustment mechanism of any one of claims 1-7, further comprising a knob secured to the worm and a support secured to the turbine.

9. A cradle head comprising a gap adjustment mechanism according to any one of claims 1-7, wherein the cradle head is further provided with a mounting hole for mounting the adjustment member, the mounting hole being in threaded connection with the adjustment member.