CN217382342U - Angle adjusting mechanism and television mounting bracket thereof - Google Patents

Abstract

The utility model relates to an angle adjusting mechanism and TV installing support thereof, angle adjusting mechanism includes first connecting piece, the second connecting piece, the pivotal axis, first regulating part, second regulating part and width adjusting device, first connecting piece passes through pivotal axis swivelling joint with the second connecting piece, first regulating part, the second regulating part is connected respectively in first connecting piece, the other end of the relative pivotal axis of second connecting piece, first regulating part, at least one in the second regulating part rotates rather than first connecting piece or the second connecting piece that corresponds and is connected, the rotation axis of rotating the connection is parallel with the pivotal axis, width adjusting device is used for adjusting first connecting piece, the relative width of the other end of the relative pivotal axis of second connecting piece. The utility model discloses an angle adjustment mechanism can adjust the angle between first connecting piece of control and the second connecting piece more accurately, and structural integrity is better, and the atress is more even, and stability is better.

Description

Angle adjusting mechanism and television mounting bracket thereof

Technical Field

The utility model relates to a TV installing support technical field especially relates to an angle adjustment mechanism and TV installing support thereof.

Background

Due to the development of science and technology and the advantages of small occupied space and light weight of the flat-panel television, the popularization and the popularization of the flat-panel television, more and more families can carry out sound and video entertainment through the flat-panel television, companies can carry out conference explanation and the like through the flat-panel television, and the life of people is greatly enriched and facilitated.

Based on the advantage of flat screen television, can install the flat screen television on the wall through the mode of direct mount to further reduce the occupation space of flat screen television in the in-service use, but traditional mounting means to the flat screen television is through punching the cooperation screw installation television bracket at the wall, fixes the television on the support again. Although the mode can realize the stability of the television installation, the television is fixed on the bracket because the installed bracket is fixed, so that the orientation, the inclination angle and the like of the television are fixed in the actual use process, and the use requirements of users cannot be met.

Referring to fig. 1, fig. 1 shows a scheme of a waist-groove sliding block commonly used in an angle adjusting mechanism in the prior art, wherein an arc-shaped waist groove and a sliding block are respectively arranged on two connecting pieces, and the sliding block is enabled to slide along the arc-shaped waist groove. Generally speaking, this solution requires bending two connecting parts, and providing an arc-shaped waist slot and a slider at the bending part of the two connecting parts, respectively. This kind of waist groove slider scheme has comparatively serious structural strength problem, because the most thinner of portion thickness of bending, and the waist groove with the mutual action force when the slider cooperates is just in the place plane of the portion of bending, the portion of bending takes place the bucking very easily because intensity is not enough, and it can take place to buckle to its thickness direction promptly and warp, moreover, sets up the elongated slot that link up its thickness direction in the portion of bending, can further reduce the intensity of the portion of bending, leads to the whole angle adjustment mechanism of prior art stability very poor, and the reliability is serious not enough.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a hanging support adjustment mechanism and hanging support thereof effectively solves the hanging support not enough in accommodation process precision, and the TV produces not hard up problem easily.

An aspect of the utility model discloses an angle adjustment mechanism is applied to the TV installing support, angle adjustment mechanism includes first connecting piece, second connecting piece, pivotal axis, first regulating part, second regulating part and width adjusting device, first connecting piece with the second connecting piece passes through pivotal axis swivelling joint, first regulating part, second regulating part connect respectively in first connecting piece the other end of the relative pivotal axis of second connecting piece, first regulating part at least one in the second regulating part corresponds rather than first connecting piece or second connecting piece rotate to be connected, rotate the rotation axis of connection with the pivotal axis is parallel, width adjusting device is used for adjusting first connecting piece the relative width of the other end of the relative pivotal axis of second connecting piece.

In one embodiment, the width adjusting device comprises a threaded connecting piece, a positioning structure and a threaded connecting structure, one of the first adjusting piece and the second adjusting piece is provided with the positioning structure, the other one of the first adjusting piece and the second adjusting piece is provided with the threaded connecting structure, and two ends of the threaded connecting piece are respectively connected with the positioning structure and the threaded connecting structure.

In one embodiment, the threaded connection is perpendicular to the pivot axis.

In one embodiment, a tolerance is provided between the locating feature and the threaded connection.

In one embodiment, the threaded connector comprises a bolt and a nut, the nut is in threaded connection with a screw rod of the bolt, the positioning structure is a through hole, a bolt head and the nut of the bolt respectively abut against two sides of the through hole, and the threaded connection structure is a through screw hole.

In one embodiment, the positioning structure is a via hole, the threaded connection structure is an internal threaded sleeve, one end of the threaded connection piece is provided with a limiting end, the other end of the threaded connection piece is provided with a threaded section, an assembly part is arranged between the limiting end and the threaded section, and the threaded section is in threaded connection with the internal threaded sleeve.

In one embodiment, the first connecting piece and the second connecting piece are respectively provided with a first pivot connecting part and a second pivot connecting part, and the pivot shaft penetrates through the first pivot connecting part and the second pivot connecting part to realize the pivot connection of the first connecting piece and the second connecting piece.

In one embodiment, the first connecting piece comprises a first connecting main body extending along the vertical direction, a first top plate and a first bottom plate extending towards the same side of the first connecting main body are respectively arranged at two ends of the first connecting main body, a third connecting piece is arranged between the first top plate and the first bottom plate, and the first adjusting piece is arranged below the first bottom plate.

In one embodiment, the second connecting member includes a second connecting body and a second base plate, the second base plate extends in a direction different from that of the second connecting body, and the second adjusting member is disposed under the second base plate.

On the other hand, the utility model discloses a TV installing support, including the aforesaid arbitrary angle adjustment mechanism and linking arm, linking arm one end with angle adjustment mechanism connects, and the other end and wall connection.

Advantageous effects

Compared with the prior art, angle adjustment mechanism is at angle regulation's in-process, and the actual regulation object is width adjusting device's regulation width, and the change of width is compared prior art's angle change and is more easily by perception and control, and this just makes angle adjustment mechanism can adjust the angle between control first connecting piece and the second connecting piece more accurately. Moreover, owing to use the relative width that width adjusting device adjusted first connecting piece and second connecting piece, its structural integrity of angle adjustment mechanism is better, and the atress is more even, and stability is better. At least one of the first adjusting piece and the second adjusting piece is arranged to be in rotating connection with the corresponding first connecting piece and the second connecting piece, and the rotating shaft in rotating connection is arranged to be parallel to the pivoting shaft, so that the force between the first adjusting piece and the first connecting piece and the force between the second adjusting piece and the second connecting piece are parallel, and the overall stability of the angle adjusting mechanism in the adjusting process of the width adjusting device is ensured.

Drawings

FIG. 1 is a schematic view of a prior art angle adjustment mechanism;

fig. 2 is a schematic view of an angle adjustment mechanism according to an embodiment of the present invention;

fig. 3 is an exploded view of an angle adjustment mechanism according to an embodiment of the present invention;

fig. 4 is a schematic view of a width adjustment device according to an embodiment of the present invention;

fig. 5 is another schematic view of a width adjustment device according to an embodiment of the present invention;

fig. 6 is a schematic view of a second connector according to an embodiment of the present invention;

fig. 7 is a schematic view of a first connecting member according to an embodiment of the present invention;

fig. 8 is a schematic view of a width adjustment device according to another embodiment of the present invention;

fig. 9 is a schematic view of a television mounting bracket according to an embodiment of the present invention;

the connecting structure comprises a first connecting piece 1, a second connecting piece 2, a first adjusting piece 3, a second adjusting piece 4, a width adjusting device 5, a pivot shaft 6, a first connecting body 10, a first pivot connecting part 11, a first top plate 12, a first bottom plate 13, a third connecting piece 14, a second pivot connecting part 21, a threaded connecting piece 51, a positioning structure 52, a threaded connecting structure 53, an assembling part 54, a pivot threaded sleeve 61, a pivot threaded bolt 62, an angle adjusting mechanism 100 and a connecting arm 200, wherein the first connecting piece is a first connecting piece, the second connecting piece 2, the first top plate 12, the first bottom plate 13, the third connecting piece 14, the second pivot connecting part 21, the threaded connecting piece 51, the positioning structure 53, the threaded connecting structure 53, the assembling part 54, the pivot threaded sleeve 61, the pivot threaded sleeve 62, the pivot bolt 100, the angle adjusting mechanism 200 and the connecting arm 200.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. 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 present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In order to avoid the problem in the background art, the utility model provides an angle adjusting mechanism. Fig. 2 is a schematic view of an angle adjusting mechanism according to an embodiment of the present invention, the angle adjusting mechanism includes a first connecting member 1, a second connecting member 2, and a pivot shaft 6, the first connecting member 1 is rotatably connected to the pivot shaft 6 through the second connecting member 2, the first connecting member 1 is used for connecting a wall, and the second connecting member 2 is used for connecting a wall hanger. Fig. 3 shows an exploded view of an angle adjusting mechanism according to an embodiment of the present invention, the angle adjusting mechanism further includes a first adjusting member 3, a second adjusting member 4 and a width adjusting device 5, the first adjusting member 3 and the second adjusting member 4 are respectively connected to the first connecting member 1 and the other end of the relative pivot shaft 6 of the second connecting member 2, at least one of the first adjusting member 3 and the second adjusting member 4 is rotatably connected to the corresponding first connecting member 1 or the corresponding second connecting member 2, the rotation axis of the rotatable connection is parallel to the pivot shaft 6, and the width adjusting device 5 is used for adjusting the relative width of the other end of the relative pivot shaft 6 of the first connecting member 1 and the second connecting member 2.

Specifically, as shown in fig. 2 and 3, in some embodiments, the first adjusting member 3 is fixedly connected to the first connecting member 1 by welding, and the second adjusting member 4 is rotatably connected to the second connecting member 2. Since the first adjusting member 3 is fixed to the first connecting member 1 and the first connecting member 1 is connected to the wall, it can be considered that the position and angle of the first adjusting member 3 are always fixed. When the width adjusting device 5 is used to obtain the width between the first connecting member 1 and the second connecting member 2, the second adjusting member 4 is far away from the first adjusting member 3, and the clockwise rotation is generated as viewed in fig. 2 and 3, so as to ensure that the width adjusting device 5 can be stably connected between the first adjusting member 3 and the second adjusting member 4. In the moving process of the second adjusting part 4, the second adjusting part drives the other end of the second connecting part 2 relative to the pivot shaft 6 to be away from the first connecting part 1 synchronously, so that the angle between the second connecting part 2 and the first connecting part 1 is changed.

In other embodiments, similar to the previous example, the second adjusting member 4 is welded to the second connecting member 2, and the first adjusting member 3 is rotatably connected to the first connecting member 1. Obviously, the principle of these embodiments is consistent with the above solution, and the first adjusting member 3 can be stabilized to displace and deflect relative to the second adjusting member 4, so as to change the angle between the first connecting member 1 and the second connecting member 2.

In still other embodiments, the first adjusting member 3 and the second adjusting member 4 are both rotatably connected to the first connecting member 1 and the second connecting member 2. It is easily understood that in these embodiments, the first adjusting member 3 and the second adjusting member 4 both rotate and displace to a certain degree, and the angle change between the first connecting member 1 and the second connecting member 2 can be realized through the matching superposition of the first adjusting member 3 and the second adjusting member 4.

To sum up, angle adjusting mechanism, through setting up first regulating part 3, second regulating part 4 at least one with first connecting piece 1, 2 rotation of second connecting piece are connected, and this just makes width adjusting device 5 is in accommodation process, width adjusting device 5 can self-adaptation its with angle change between first regulating part 3 and the second regulating part 4 guarantees first regulating part 3 with the interval of second regulating part 4 can be all the time with 5 synchronous adjustments of width adjusting device, thereby drives first connecting piece 1 with the other end distance of 2 relative pivotal axles 6 of second connecting piece also can with 5 synchronous adjustments of width adjusting device, and then has realized first connecting piece 1 with angle modulation between 2 of second connecting piece. Compared with the prior art, the utility model discloses an angle adjustment mechanism is at angle regulation's in-process, and the actual regulation object is width adjusting device 5's regulation width, and the change of width is compared prior art's angle change and is more easily by perception and control, and this is just so makes angle adjustment mechanism can adjust the angle between control first connecting piece 1 and the second connecting piece 2 more accurately. Moreover, owing to use width adjusting device 5 to adjust the relative width of first connecting piece 1 and second connecting piece 2, consequently the utility model discloses an angle adjustment mechanism need not like prior art be in first connecting piece 1 with set up the relatively poor kink of intensity on the second connecting piece 2, the utility model discloses an its structural integrity of angle adjustment mechanism is better, and the atress is more even, and stability is better. At least one of the first adjusting part 3 and the second adjusting part 4 is rotatably connected with the corresponding first connecting part 1 and the second connecting part 2, and the rotating shaft which is rotatably connected is arranged to be parallel to the pivot shaft 6, so that the force between the first adjusting part 3 and the first connecting part 1 and the force between the second adjusting part 4 and the second connecting part 2 are parallel, and the integral stability of the angle adjusting mechanism in the adjusting process of the width adjusting device 5 is ensured.

It is obvious that the width adjustment means 5 can have a variety of implementations. In some embodiments, the width adjusting device 5 may be a telescopic rod commonly available in the market, two ends of a rod portion of the telescopic rod are respectively connected with the first adjusting member 3 and the second adjusting member 4, and the length of the telescopic rod is adjusted by a fixing component of the telescopic rod.

In other embodiments, as shown in fig. 4 and 5, the connection relationship between the width adjusting device 5 and the first adjusting member 3 and the second adjusting member 4 is schematically illustrated, the width adjusting device 5 includes a threaded connecting member 51, a positioning structure 52, and a threaded connection structure 53, one of the first adjusting member 3 and the second adjusting member 4 is provided with the positioning structure 52, the other one is provided with the threaded connection structure 53, and two ends of the threaded connecting member 51 are respectively connected with the positioning structure 52 and the threaded connection structure 53. By providing the width adjustment means 5 of the described form, the connection thereof is more stable and is also more advantageous in fine adjustment of the telescopic length.

Preferably, as shown in fig. 3, in some embodiments, the threaded connection 51 is perpendicular to the pivot shaft 6. In these embodiments, since the pivot shaft 6 is parallel to the rotation axes of the first and second adjusting members 3 and 4, and the acting forces of the threaded connection member 51 on the first and second adjusting members 3 and 4 are perpendicular to the rotation axes, this means that the forces between the first and second adjusting members 3 and 4, the forces between the first adjusting member 3 and the first connection member 1, and the forces between the second adjusting member 4 and the second connection member 2 are all on the same straight line, and the present invention is not disadvantageous to stability, such as torsion, etc., between the components of the angle adjusting mechanism, thereby further improving the structural integrity of the angle adjusting mechanism and improving the stability in use.

Specifically, as shown in fig. 4 and 5, in this embodiment, the threaded connector 51 includes a bolt and a nut, the nut is screwed on a screw rod of the bolt, the positioning structure 52 is a through hole provided on the first adjusting member 3, the screw rod of the bolt passes through the through hole, and a bolt head and a nut of the bolt respectively abut against two sides of the through hole to fix the first adjusting member 3 on the bolt. In this exemplary embodiment, the threaded connection 53 is a threaded hole provided in the second adjusting part 4, through which the threaded connection part 51 can be screwed. When the angle adjusting mechanism of this embodiment is adjusted, the bolt head of the bolt is screwed to rotate the screw portion of the bolt in the screw hole, and since the first adjusting member 3 is fixed to the head of the bolt by the bolt head and the nut, the rotation of the bolt changes the distance between the first adjusting member 3 and the second adjusting member 4, thereby achieving the angle adjustment of the first connecting member 1 and the second connecting member 2. Moreover, in this embodiment, the bolt is connected with the rotation of the first adjusting part 3 and the second adjusting part 4 to form a fit, so that the screw rod of the bolt can always face the screw hole, thereby avoiding the problem that the thread connecting piece 51 is mistaken between the screw holes and the thread is bitten, and fully ensuring the stability of the angle adjusting mechanism.

Preferably, in some embodiments, a tolerance is provided between the positioning structure 52 and the threaded connection 51. On the basis of the foregoing example, the tolerance is formed by setting the through hole on the first adjusting member 3 to have a hole diameter slightly larger than the screw diameter of the bolt. So set up, even the screw rod of bolt has deviated slightly the screw is through the fine setting the bolt is in position in the via hole can make the screw rod is just right again the screw prevents the screw rod of bolt with because the wrong tooth bites between the screw, thereby increased angle adjustment mechanism fault tolerance when using, it is more stable during the operation.

It will be appreciated that the specific implementation of the threaded connection 51, the locating formation 52 and the threaded connection 53 is obviously more than one of the above. As shown in fig. 8, in some embodiments, the positioning structure 52 is a through hole, the threaded connection structure 53 is an internal threaded sleeve, one end of the threaded connection member 51 is provided with a limit end, and the other end thereof is provided with a threaded section, and a hexagonal assembly portion 54, for example, is arranged between the limit end and the threaded section, the threaded section is used for being in threaded connection with the internal threaded sleeve, and the limit end is used for being connected with the fixing member. When the angle adjusting mechanism is used, a user only needs to use a hexagonal wrench to twist the assembling part, so that the threaded connecting piece 51 can move in the internal thread sleeve, and the operation is easier compared with the scheme.

It is worth to be noted that the angle adjusting mechanism of the present invention is not limited to the specific embodiment of the first connecting member 1, the second connecting member 2 and the coupling between the first connecting member and the pivot shaft 6. For example, in some embodiments as shown in fig. 6, the pivot shaft 6 may include a pivot bolt 62 and a pivot threaded sleeve 61, the pivot threaded sleeve 61 and the pivot bolt 62 each include a limiting end and a threaded connection section connected thereto, the pivot threaded sleeve 61 and the pivot bolt 62 are connected to each other through the threaded connection section, and the first connecting member 1 and the second connecting member 2 are sleeved on the threaded connection section and disposed between the limiting end of the pivot threaded sleeve 61 and the pivot bolt 62. As shown in fig. 6 and 7, in this embodiment, the first link 1 and the second link 2 are respectively provided with a first pivot connection portion 11 and a second pivot connection portion 21, and the pivot shaft 6 penetrates through the first pivot connection portion 11 and the second pivot connection portion 12 to realize the pivot connection of the first link 1 and the second link 2.

For example, as shown in fig. 7, the first connecting member 1 includes a first connecting body 10 extending along a vertical direction, two ends of the first connecting body 10 are respectively provided with a first top plate 12 and a first bottom plate 13 extending towards the same side of the first connecting body, for example, as shown in fig. 7, the first top plate and the first bottom plate may both extend towards the left side of the first connecting body 10 in the figure, a third connecting member 14 is disposed between the first top plate 12 and the first bottom plate 13, the third connecting member 14 is used for connecting with a wall, and the first adjusting member 3 is disposed below the first bottom plate 13. With this arrangement, the angle adjusting mechanism not only provides an installation space for the third connecting member 14, but also provides a longer extension range for the width adjusting device 5 connected with the first adjusting member 3 by disposing the first adjusting member 3 to be appropriately far away from the first connecting body 10, so that the angle between the first connecting member 1 and the second connecting member 2 can be more accurately adjusted, and by disposing the first adjusting member 3 below the first bottom plate 13, if the first adjusting member 3 is rotatably connected with the first bottom plate 13, the first adjusting member 3 can have a larger rotation range, so that the first adjusting member 3, the second adjusting member 4, and the width adjusting device 5 have better matching conditions. And because the space of first bottom plate 13 below is many, compare and set up first regulating part 3 in one side of first connecting body 10, this embodiment angle adjusting mechanism has more spacious operating space and goes to be used for the adjustment width adjusting device 5 can optimize angle adjusting mechanism's use is experienced. Similarly, since the second connecting member 2 and the first connecting member 1 have similar properties, the second connecting member 2 may also be provided with a second connecting body and a second bottom plate similar to the first connecting member 1, the extending direction of the second bottom plate is different from that of the second connecting body, and the second adjusting member 4 is provided below the second bottom plate, which may also achieve similar technical effects.

The utility model discloses another aspect discloses a TV installing support, as shown in FIG. 9, including aforesaid arbitrary angle adjustment mechanism 100 and linking arm 200, linking arm 200 one end with angle adjustment mechanism 100 connects, and the other end is connected with the wall. TV installing support, when reciprocating hanging horizontal direction rotation and front and back, because angle adjustment mechanism's structural stability is good, its angle that has set up can remain unchanged basically to experience for the user provides good use.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An angle adjusting mechanism is characterized by being applied to a television mounting bracket and comprising a first connecting piece, a second connecting piece, a pivot shaft, a first adjusting piece, a second adjusting piece and a width adjusting device, wherein the first connecting piece and the second connecting piece are connected in a rotating mode through the pivot shaft, the first adjusting piece and the second adjusting piece are opposite to the pivot shaft and are respectively connected to the other ends of the first connecting piece and the second connecting piece, at least one of the first adjusting piece and the second adjusting piece is connected with the corresponding first connecting piece or second connecting piece in a rotating mode, a rotating shaft in the rotating mode is parallel to the pivot shaft, and the width adjusting device is used for adjusting the relative width of the first connecting piece and the second connecting piece relative to the other ends of the pivot shaft.

2. The angle adjusting mechanism according to claim 1, wherein the width adjusting device includes a threaded connector, a positioning structure, and a threaded connection structure, one of the first adjusting member and the second adjusting member is provided with the positioning structure, and the other is provided with the threaded connection structure, and both ends of the threaded connector are respectively connected with the positioning structure and the threaded connection structure.

3. The angle adjustment mechanism of claim 2, wherein the threaded connection is perpendicular to the pivot axis.

4. The angular adjustment mechanism of claim 2, wherein a tolerance is provided between the positioning structure and the threaded connection.

5. The angle adjustment mechanism of claim 2, wherein the threaded connection member comprises a bolt and a nut, the nut is threaded onto a threaded rod of the bolt, the positioning structure is a through hole, a head of the bolt and the nut abut against two sides of the through hole respectively, and the threaded connection structure is a through screw hole.

6. The angle adjusting mechanism according to claim 2, wherein the positioning structure is a through hole, the threaded connection structure is an internal threaded sleeve, one end of the threaded connector is provided with a limit end, the other end of the threaded connector is provided with a threaded section, an assembling portion is arranged between the limit end and the threaded section, and the threaded section is in threaded connection with the internal threaded sleeve.

7. The angle adjusting mechanism of claim 1, wherein the first connecting piece and the second connecting piece are respectively provided with a first pivot connecting part and a second pivot connecting part, and the pivot shaft penetrates through the first pivot connecting part and the second pivot connecting part to realize the pivot connection of the first connecting piece and the second connecting piece.

8. The angle adjusting mechanism of claim 1, wherein the first connecting member comprises a first connecting body extending in a vertical direction, a first top plate and a first bottom plate extending towards the same side of the first connecting body are respectively arranged at two ends of the first connecting body, a third connecting member is arranged between the first top plate and the first bottom plate, and the first adjusting member is arranged below the first bottom plate.

9. The angle adjustment mechanism of claim 1, wherein the second connecting member includes a second connecting body and a second base plate, the second base plate extending in a direction different from that of the second connecting body, the second adjustment member being disposed below the second base plate.

10. A television mounting bracket comprising the angle adjustment mechanism of any of claims 1-9 and a connecting arm, the connecting arm being connected to the angle adjustment mechanism at one end and to a wall at the other end.

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