CN220832289U

CN220832289U - Angle adjusting mechanism and reading frame applied by same

Info

Publication number: CN220832289U
Application number: CN202321019305.8U
Authority: CN
Inventors: 蒋昊
Original assignee: Ningbo Sihang Stationery Co ltd
Current assignee: Ningbo Sihang Stationery Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2024-04-26
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses an angle adjusting mechanism and a reading frame applied by the same, wherein the angle adjusting mechanism comprises: the locking button, the supporting arm and the first mounting seat are provided with a spline hole, the first mounting seat is provided with a through hole, and the locking button is sequentially provided with a spline part, an annular outer flange and a pressing part along the axial direction; the annular outer flange is provided with a ring of spherical limiting grooves on the end face, and a ring of limiting protrusions matched with the spherical limiting grooves are arranged on the end face of the annular inner flange in the through hole; or a circle of limiting protrusions are arranged on the end face of the annular outer flange, and a spherical limiting groove matched with the limiting protrusions is arranged on the end face of the annular inner flange in the through hole. The utility model provides an angle adjusting mechanism, wherein a spherical limit groove and a limit bulge are combined to form a clutch mechanism, and when the load of the angle adjusting mechanism exceeds the maximum bearing capacity of the angle adjusting mechanism, slipping exists between the spherical limit groove and the limit bulge, so that the spherical limit groove and/or the limit bulge is not easy to deform.

Description

Angle adjusting mechanism and reading frame applied by same

Technical Field

The utility model relates to the technical field of reading frames, in particular to an angle adjusting mechanism and a reading frame applied by the same.

Background

The reading support is a tool convenient for reading and is generally composed of a base, a reading panel and a supporting arm. The base is the basis of the reading stand, which provides a stable support. The reading panel is the core of the reading stand and can hold books, mobile display devices, documents or other reading materials. The support arm is connected with the base and the reading panel, and can rotate, so that the angle and the height of the reading panel can be adjusted as required.

In the chinese patent of issued publication CN 218118310U, a knob adjuster and a reading stand with a knob adjuster are disclosed, wherein a plurality of protrusions are axially arranged along a first through hole on the periphery of a rotating part, the protrusions form engaging teeth on the periphery of the rotating part, tooth grooves are arranged in the first through hole and the groove openings corresponding to the engaging teeth, the engaging teeth are engaged with the tooth grooves to realize the relative locking of a first connecting part and a second connecting part, wherein the rotating part is equivalent to a button, the first connecting part is equivalent to a mounting seat, and the second connecting part is equivalent to a supporting arm, namely, the relative locking of a reading panel and the supporting arm is realized through the engagement of the engaging teeth and the tooth grooves.

However, in the above patent, when the load of the angle adjusting mechanism exceeds its own maximum carrying capacity, the relative rotation between the mounting base and the supporting arm causes deformation of the engaging teeth and/or the slot due to torsion, so that the angle adjusting mechanism is scrapped and cannot be reused.

Disclosure of Invention

The present utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model proposes an angle adjustment mechanism.

The utility model also provides a reading frame with the angle adjusting mechanism.

The technical scheme adopted by the utility model is as follows: there is provided an angle adjustment mechanism comprising:

The locking button is provided with a spline part, an annular outer flange and a pressing part in sequence along the axial direction, the spline part is in sliding fit with the spline hole, and the pressing part extends out of the through hole;

A circle of spherical limiting grooves are formed in the end face of the annular outer flange, and a circle of limiting protrusions matched with the spherical limiting grooves are formed in the end face of the annular inner flange in the through hole; or (b)

A circle of limiting protrusions are arranged on the end face of the annular outer flange, and spherical limiting grooves matched with the limiting protrusions are arranged on the end face of the annular inner flange in the through hole.

Compared with the prior art, the structure has the advantages that the engagement between the locking button and the first mounting seat is improved into the engagement between the spherical limiting groove and the limiting protrusion by the engagement between the engagement teeth and the tooth grooves in the prior art, the spherical limiting groove and the limiting protrusion are combined to form the clutch mechanism, and when the load of the angle adjusting mechanism exceeds the maximum bearing capacity of the angle adjusting mechanism, slipping exists between the spherical limiting groove and the limiting protrusion, so that the spherical limiting groove and/or the limiting protrusion is not easy to deform. The loss caused by overload is avoided, so that the safety and the reliability of the angle adjusting mechanism are improved.

According to one embodiment of the utility model, the spherical limit groove is hemispherical or quarter spherical or eighth spherical.

According to one embodiment of the utility model, the support arm is provided with a pivot, and the pivot is opposite to the opening direction of the spline hole.

According to one embodiment of the utility model, the angle adjustment mechanism further comprises a second mount provided with a pivot hole cooperating with the pivot shaft.

According to one embodiment of the utility model, the angle adjustment mechanism further comprises a first spring located between the support arm and the locking button, the locking button having a resilient tendency to move away from the support arm.

A reading stand comprises a bottom plate, a reading main plate and any one of the angle adjusting mechanisms.

According to one embodiment of the utility model, the angle adjusting mechanism is connected with the bottom plate through a rotary damping assembly.

According to one embodiment of the utility model, the rotary damping assembly comprises a connecting block, a rotating block and a positioning block elastically mounted on the rotating block, wherein the positioning block is provided with convex teeth, the connecting block is provided with an inner gear ring, and the convex teeth are abutted against one tooth groove in the inner gear ring.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of an angle adjustment mechanism according to an embodiment of the present utility model;

FIG. 2 is a partial block diagram of an angle adjustment mechanism in an embodiment of the utility model;

FIG. 3 is a perspective view of a lock button according to an embodiment of the present utility model;

FIG. 4 is a perspective view of a first mount according to an embodiment of the present utility model;

FIG. 5 is a partial block diagram of a reading frame in an embodiment of the utility model;

FIG. 6 is a schematic view of an angle adjusting mechanism according to an embodiment of the present utility model;

FIG. 7 is a perspective view of a support arm according to an embodiment of the present utility model;

FIG. 8 is a partial block diagram of a support arm in an embodiment of the utility model;

FIG. 9 is a perspective view of a rotational damping assembly in accordance with an embodiment of the present utility model;

FIG. 10 is a perspective view of a reading stand in accordance with an embodiment of the present utility model;

fig. 11 is a schematic structural view of a reading frame according to an embodiment of the present utility model.

The reference numerals in the figures illustrate:

1. A lock button; 2. a support arm; 3. a first mount; 4. a first spring; 5. a second mounting base; 6. a bottom plate; 7. a rotary damping assembly; 8. reading a main board;

11. A spline portion; 12. an annular outer flange; 13. a pressing part;

12a, a spherical limit groove;

21. A spline hole; 22. a pivot;

31. a through hole; 32. an annular inner flange; 33. a limit protrusion;

51. A pivot hole;

71. A connecting block; 72. a rotating block; 73. a positioning block; 74. a second spring;

71a, inner gear ring.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1-4 and 6-8, an angle adjusting mechanism is disclosed in the present embodiment, comprising:

The locking button 1, the supporting arm 2 and the first mounting seat 3, wherein the two ends of the supporting arm 2 are provided with spline holes 21, the first mounting seat 3 is provided with a through hole 31, the through hole 31 is consistent with the opening direction of the spline holes 21, the locking button 1 is sequentially provided with a spline part 11, an annular outer flange 12 and a pressing part 13 along the axial direction, the spline part 11 is in sliding fit with the spline holes 21, and the pressing part 13 extends out of the through hole 31;

Wherein, a circle of spherical limit groove 12a is arranged on the end surface of the annular outer flange 12, and a circle of limit protrusion 33 matched with the spherical limit groove 12a is arranged on the end surface of the annular inner flange 32 in the through hole 31.

Further, in another embodiment, a circle of limiting protrusions 33 is provided on the end face of the annular outer flange 12, and a spherical limiting groove 12a matched with the limiting protrusions 33 is provided on the end face of the annular inner flange 32 in the through hole 31.

Further, as shown in fig. 3, in the present embodiment, the lock button 1 is axially composed of a spline portion 11, an annular outer flange 12 formed by extending one end of the spline portion 11 in the radial direction, and a boss-like pressing portion 13 formed by protruding an end face of the annular outer flange 12 in this order. The spline portion 11, the annular outer flange 12, and the pressing portion 13 are coaxially disposed, wherein an end of the spline portion 11 remote from the pressing portion 13 is provided with a mounting hole into which the first spring 4 is fitted.

Further, in the present embodiment, the annular outer flange 12 has a round of spherical limit grooves 12a on the end face, that is, a plurality of spherical limit grooves 12a distributed in an annular shape, the spherical limit grooves 12a are quarter spheres, and two openings are provided on the annular outer flange 12, one of the openings is aligned with the orientation of the pressing portion 13, and the other opening is oriented toward the outside of the annular outer flange 12 in the radial direction of the annular outer flange 12. Correspondingly, as shown in fig. 4, a ring-shaped inner flange 32 is provided at the mouth portion of the through hole 31, the inner diameter of the through hole 31 is larger than the outer diameter of the annular outer flange 12, and the inner diameter of the ring-shaped inner flange 32 is smaller than the inner diameter of the through hole 31 and larger than the outer diameter of the pressing portion 13. The end face of the annular inner flange 32 is provided with a limit protrusion 33, and in order to increase the structural strength of the limit protrusion 33, the limit protrusion 33 is connected with the inner wall of the through hole 31 into a whole.

Specifically, in another embodiment the spherical limit groove 12a is hemispherical or eighth spherical.

Specifically, as shown in fig. 1 and fig. 7-8, the supporting arm 2 is provided with a pivot 22, the pivot 22 is opposite to the opening direction of the spline hole 21, and the pivot 22 is coaxially arranged with the spline hole 21. The angle adjusting mechanism further comprises a second mounting seat 5 and a first spring 4, wherein the second mounting seat 5 is provided with a pivot hole 51 matched with the pivot 22, and the first spring 4 is positioned between the support arm 2 and the locking button 1, so that the locking button 1 has an elastic trend of moving away from the support arm 2.

Referring to fig. 10-11, in another embodiment, a reading stand is disclosed that includes a base plate 6, a reading main plate 8, and an angle adjustment mechanism in this embodiment.

Specifically, the angle adjusting mechanism is connected with the bottom plate 6 through a rotary damping assembly 7, the rotary damping assembly comprises a connecting block 71, a rotary block 72 and a positioning block 73 elastically mounted on the rotary block 72, the positioning block 73 is provided with convex teeth, the connecting block 71 is provided with an inner gear ring 71a, and the convex teeth are abutted against one tooth slot in the inner gear ring 71 a.

Further, as shown in fig. 9 and 10, in another embodiment, the connection block 71 is fixedly connected to the first mounting seat 3 and the second mounting seat 5 at the lower part of the support arm 2, and a ring of inner gear 71a is formed on the connection block 71. The rotating block 72 is fixedly connected with the bottom plate 6, the outer diameter of the rotating block 72 is smaller than the minimum inner diameter of the annular gear 71a, and the positioning block 73 is slidably mounted on the rotating block 72 along the radial direction of the rotating block 72. The head of the positioning block 73 is provided with convex teeth, a second spring 74 is arranged between the positioning block 73 and the rotating block 72, and the second spring 74 has an elastic tendency to enable the convex teeth to be abutted against one tooth slot in the gear ring.

Further, the first mounting seat 3 and the second mounting seat 5 on the upper portion of the support arm 2 are fixedly connected with the reading main board 8.

Still further, in another embodiment, the maximum bearing capacity of the reading stand is 3-10kg, preferably the maximum bearing capacity is 5kg, when the load of the reading main board 8 is greater than 5kg and overload occurs, the supporting arm 2 and the first mounting seat 3 rotate relatively, the spherical limit groove 12a and the limit protrusion 33 automatically slip, and the limit protrusion 33 jumps from the rotation direction of the first mounting seat 3 of one spherical limit groove 12a to the other spherical limit groove 12 a.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. An angle adjustment mechanism, comprising:

2. An angle adjustment mechanism according to claim 1, wherein: the spherical limiting groove is hemispherical, quarter spherical or eighth spherical.

3. An angle adjustment mechanism according to claim 1, wherein: the support arm is provided with a pivot, and the direction of the pivot is opposite to that of the spline hole.

4. An angle adjustment mechanism according to claim 3, wherein: the device also comprises a second mounting seat, wherein the second mounting seat is provided with a pivot hole matched with the pivot.

5. An angle adjustment mechanism according to claim 1, wherein: the locking device further comprises a first spring, wherein the first spring is positioned between the supporting arm and the locking button, so that the locking button has an elastic trend of moving away from the supporting arm.

6. A reading stand, characterized in that: comprising a base plate, a reading main plate and an angle adjusting mechanism according to any one of claims 1-5.

7. The reading stand of claim 6, wherein: the angle adjusting mechanism is connected with the bottom plate through a rotary damping assembly.

8. The reading stand of claim 7, wherein: the rotary damping assembly comprises a connecting block, a rotating block and a positioning block which is elastically installed on the rotating block, wherein the positioning block is provided with convex teeth, the connecting block is provided with an inner gear ring, and the convex teeth are abutted against one tooth slot in the inner gear ring.