CN219492854U - Bulb rotating device and lighting equipment - Google Patents

Abstract

The utility model relates to a ball head rotating device and lighting equipment, wherein the ball head rotating device comprises: the ball axle comprises a shell, a ball axle, a base component and a limiting piece. The ball shaft is provided with a ball head, at least part of the ball head is arranged in the shell, the base component is arranged on one side of the ball head, which deviates from the through hole, and is connected with the shell, the ball head is rotatable relative to the base component, the limiting piece is arranged on the ball head, the ball head can drive the limiting piece to rotate around the axis of the through hole, a stop part is arranged in the shell, and the limiting piece can abut against the stop part to limit the rotation angle of the ball head around the axis of the through hole. The ball head rotating device provided by the utility model can not rotate excessively, and is simple in structural design and low in cost.

Description

Bulb rotating device and lighting equipment

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to a ball head rotating device and lighting equipment.

Background

With the continuous improvement of the quality of life, various lighting lamps are increasingly used commonly nowadays, and are widely used in daily life and work of people. Taking a desk lamp as an example, the desk lamp in the market at present basically adopts a lamp cap, and the desk lamp can adjust the height of a lamp main body so as to change the illumination direction and brightness of the lamp cap. However, in many occasions of work and study, besides the above requirements, there are also requirements of different angles of illumination and adjustable illumination areas, and further, it is required to adjust the lamp cap to make the light irradiate obliquely to a certain place.

In the related art, since the rotating device between the lamp cap and the lamp main body is not limited, the lamp can rotate 360 degrees in a specific direction, so that the cable is easy to damage, and the requirements of the mandatory standard of the lamp are not met. Or, the rotating device between the lamp cap and the lamp main body is designed with a limiting structure, but the structural design is redundant and the cost is high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides a ball head rotating device which cannot rotate excessively, and is simple in structural design and low in cost.

The embodiment of the utility model also provides a lighting device.

The ball head rotating device of the embodiment of the utility model comprises: the shell is provided with a through hole; the ball shaft penetrates through the through hole, the ball shaft is provided with a ball head, and at least part of the ball head is arranged in the shell; the base component is arranged on one side of the ball head, which is away from the through hole, and is connected with the shell, and the ball head can rotate relative to the base component; the limiting piece is arranged on the ball head, the ball head can drive the limiting piece to rotate around the axis of the through hole, a stop part is arranged in the shell, and the limiting piece can prop against the stop part so as to limit the rotation angle of the ball head around the axis of the through hole.

According to the ball head rotating device provided by the embodiment of the utility model, when the ball head rotates around the axis of the through hole, the ball head can drive the limiting piece to rotate, and the limiting piece is propped against the stop part, so that the rotating angle of the limiting piece can be restrained, and the problem that the ball head excessively rotates around the axis of the through hole can be avoided. The ball head rotating device provided by the embodiment of the utility model adopts a ball head structure, so that the ball shaft can rotate in any direction within a certain range, the rotating flexibility of the ball head rotating device is improved, and the ball head rotating device is simple in structural design and low in cost.

In some embodiments, the limiting member is provided with a mounting hole, the ball head is sleeved in the mounting hole, the ball head is rotatable relative to the limiting member around a preset direction, an included angle is formed between the preset direction and the axis of the through hole, the periphery of the limiting member is provided with a limiting portion, and the limiting portion can be propped against the stop portion.

In some embodiments, the limiting member includes an annular body and a limiting portion, the mounting hole is formed in the annular body, the limiting portion is formed in the outer peripheral edge of the annular body and protrudes toward the inner wall of the housing, the stopping portion is arranged along the circumferential direction of the housing, and the limiting portion can respectively abut against two ends of the stopping portion along the circumferential direction of the housing to limit the rotation angle of the limiting member.

In some embodiments, the ball head is provided with an external cutting surface, the inner peripheral wall of the mounting hole is provided with a matching part, the matching part is opposite to the external cutting surface, and when the ball head rotates around the axis of the through hole, the external cutting surface is propped against the matching part to drive the limiting part to synchronously rotate.

In some embodiments, the ball shaft comprises a shaft body and the ball head, the shaft body is connected with the ball head and is located at the outer side of the shell, an arc-shaped surface is arranged on the outer peripheral wall of the through hole, and the arc-shaped surface is attached to the ball head.

In some embodiments, one end of the housing has a top shell, the other end of the housing has an opening, the through hole is formed in the top shell, the base assembly is detachably mounted at the opening, a ball socket is formed in the base assembly, the ball socket is pivotably arranged in the ball socket, and the limiting member is arranged between the base assembly and the top shell.

In some embodiments, the base assembly includes a base threadedly engaged within the housing and a support located between the base and the ball head, with the socket being provided on the support.

In some embodiments, the base assembly further comprises an elastic member disposed between the support member and the base, the elastic member urging the support member toward the ball head.

In some embodiments, the support member is provided with a guide post, the base is provided with a guide hole, the guide post is arranged in the guide hole in a penetrating manner and is in sliding connection with the guide hole, and the elastic member is sleeved on the guide post.

In some embodiments, a first wire passing hole penetrates through the ball shaft, the first wire passing hole extends along the length direction of the ball shaft, a second wire passing hole penetrates through the base assembly, one end of the second wire passing hole is communicated with the first wire passing hole, and the other end of the second wire passing hole is communicated with the outside of the shell.

In some embodiments, one end of the housing has a top shell, the through hole is formed in the top shell, and the ball head rotating device further comprises a reinforcing ring, and the reinforcing ring is sleeved on the top shell.

A lighting device according to another embodiment of the utility model comprises: a lamp body; the bulb rotating device is any one of the bulb rotating devices, and one end of the bulb shaft, which is away from the bulb, is connected with the lamp main body; the lamp cap, the casing deviate from the one end of through-hole with the lamp cap links to each other.

According to the lighting equipment provided by the embodiment of the utility model, when the ball head rotates around the axis of the through hole, the ball head can drive the limiting piece to rotate, and the limiting piece is propped against the stop part, so that the rotation angle of the limiting piece can be restrained, and the problem that the ball head excessively rotates around the axis of the through hole can be avoided. The ball head rotating device of the lighting equipment adopts a ball head structure, so that the ball shaft can rotate in any direction within a certain range, the rotating flexibility of the ball head rotating device is improved, and the lighting equipment is simple in structural design and low in cost.

In some embodiments, the ball shaft comprises a shaft body and the ball head, the shaft body is connected with the ball head, a connecting hole is formed in the lamp main body, and one end, away from the ball head, of the shaft body is penetrated through the connecting hole and fixed through a fastening nut; and/or the outer periphery of the shell is provided with a flange, and the flange is connected with the lamp cap through a screw.

Drawings

Fig. 1 is a schematic view of a lighting device of an embodiment of the present utility model.

Fig. 2 is an exploded view of a lighting device of an embodiment of the present utility model.

FIG. 3 is a front view of a ball pivot assembly according to an embodiment of the utility model.

FIG. 4 is an exploded view of a ball pivot assembly according to an embodiment of the present utility model.

FIG. 5 is a cross-sectional view of a ball pivot assembly according to an embodiment of the utility model taken normal to the X-axis.

FIG. 6 is a cross-sectional view of a ball pivot assembly according to an embodiment of the utility model, taken normal to the Y-axis.

FIG. 7 is a cross-sectional view of a shaft body of a ball head turning device according to an embodiment of the present utility model abutting against an outer edge of a through hole.

FIG. 8 is a cross-sectional view of a ball pivot assembly according to an embodiment of the utility model, taken normal to the Z axis.

FIG. 9 is a cross-sectional view of a ball pivot assembly according to another embodiment of the utility model.

FIG. 10 is a schematic view of a ball axle of a ball head turning device according to an embodiment of the utility model.

FIG. 11 is a bottom view of a housing of a ball pivot assembly according to an embodiment of the utility model.

FIG. 12 is a schematic view of a limiter of a ball pivot apparatus according to an embodiment of the present utility model.

Reference numerals:

10. a ball head rotating device; 20. a lamp body; 30. a lamp base; 40. a cable;

1. a housing; 11. a top shell; 111. a through hole; 112. an arc surface; 113. an opening; 12. a stop portion; 13. a flange;

2. a ball shaft; 21. ball head; 211. cutting the outer surface; 22. a shaft body; 221. a limiting surface; 23. a first via hole;

3. a base assembly; 31. a support; 311. a guide post; 312. a second via hole; 313. a ball socket; 32. a base; 321. a guide hole; 33. an elastic member;

4. a limiting piece; 41. an annular body; 411. a mounting hole; 42. a limit part; 43. a mating portion;

5. a reinforcing ring; 6. a fastening nut; 7. a screw.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A ball head turning device 10 and an illumination apparatus according to an embodiment of the present utility model are described below with reference to fig. 1 to 12.

As shown in fig. 3 to 9, the ball head turning device 10 according to the embodiment of the present utility model includes: the ball axle comprises a shell 1, a ball axle 2, a base assembly 3 and a limiting piece 4.

The shell 1 is provided with a through hole 111, the ball shaft 2 penetrates through the through hole 111, the ball shaft 2 is provided with a ball head 21, at least part of the ball head 21 is arranged in the shell 1, the base component 3 is arranged on one side of the ball head 21, which is away from the through hole 111, and is connected with the shell 1, and the ball head 21 can rotate relative to the base component 3. The limiting piece 4 is arranged on the ball head 21, the ball head 21 can drive the limiting piece 4 to rotate around the axis of the through hole 111, the stop part 12 is arranged in the shell 1, and the limiting piece 4 can abut against the stop part 12 so as to limit the rotation angle of the ball head 21 around the axis of the through hole 111.

According to the ball head rotating device 10 of the embodiment of the utility model, when the ball head 21 rotates around the axis of the through hole 111, the ball head 21 can drive the limiting piece 4 to rotate, and the limiting piece 4 abuts against the stop part 12, so that the rotating angle of the limiting piece 4 can be restrained, and the problem that the ball head 21 excessively rotates around the axis of the through hole 111 can be avoided. In addition, the ball head rotating device 10 of the embodiment of the utility model adopts a ball head 21 structure, so that the ball shaft 2 can rotate in any direction within a certain range, the rotating flexibility of the ball head rotating device 10 is improved, and the structure design is simple and the cost is lower.

As shown in fig. 3 and 4, a through hole 111 is provided at the upper end of the housing 1, and the lower end of the ball shaft 2 (i.e., the ball head 21) is mounted in the housing 1, and the upper end of the ball shaft 2 is penetrated out of the housing 1 through the through hole 111. The ball 21 may be located entirely inside the housing 1, or may be located partially inside the housing 1, and partially outside the housing 1 (through hole 111).

It can be understood that in the related art, the rotation device of the lighting device adopts 3 combinations of 'one-axis', so that the angle adjustment of the lamp cap in three directions is realized (i.e. one 'one-axis' can realize the rotation in one direction), but the structure is large in size and high in cost. The ball head 21 of the ball head rotating device 10 of the embodiment of the utility model is matched with the base component 3 in a way of adopting the ball head 21 and the ball socket 313, so that the ball shaft 2 can rotate in a universal way within a certain range, and the ball head rotating device 10 has the advantages of simple structure, good rotating effect and low cost.

For example, as shown in fig. 1, a three-dimensional coordinate axis may be established with the center of the ball 21 as the origin. When the ball-head turning device 10 is mounted on the lighting apparatus, the left-right direction of the lamp cap 30 may be an X-axis, the front-rear direction of the lamp cap 30 may be a Y-axis, and the up-down direction of the lamp cap 30 may be a Z-axis. Wherein the axis of the Z-axis coincides with the axis of the through hole 111.

According to the ball head rotating device 10 provided by the embodiment of the utility model, the angle range of the ball head 21 around the Z axis is limited by the limiting piece 4, so that the problem that the lamp cap 30 is screwed for 360 degrees can be avoided, and the problem that the cable 40 in the lighting equipment is damaged is reduced.

Optionally, the ball 21 is rotatable relative to the limiting member 4 about a preset direction, and an included angle is formed between the preset direction and the axis of the through hole 111. For example, the preset direction may be an X-axis direction, a Y-axis direction, or a direction having a certain angle with the Z-axis. It will be appreciated that the limiting member 4 does not limit the rotation angle of the ball 21 about the X-axis or the Y-axis, i.e. the limiting member 4 limits only the rotation angle range of the ball 21 about the Z-axis.

As shown in fig. 4, 8 and 12, the limiting member 4 is provided with a mounting hole 411, the ball head 21 is sleeved in the mounting hole 411, the periphery of the limiting member 4 is provided with a limiting portion 42, and the limiting portion 42 can abut against the stop portion 12. It can be understood that the limiting member 4 is sleeved on the ball head 21 through the mounting hole 411, when the ball head 21 rotates around the Z axis, the ball head 21 can drive the limiting member 4 to rotate synchronously until the limiting portion 42 of the limiting member 4 abuts against the stop portion 12, so that the limiting member 4 cannot rotate continuously around the Z axis, and the ball head 21 is limited to rotate continuously around the Z axis.

For example, as shown in fig. 8, 11 and 12, the limiting member 4 includes an annular body 41 and a limiting portion 42, the mounting hole 411 is provided in the annular body 41, the limiting portion 42 is provided at an outer peripheral edge of the annular body 41 and protrudes toward an inner wall of the housing 1, the stop portion 12 is arranged along a circumferential direction of the housing 1, and the limiting portion 42 may respectively abut against two ends of the stop portion 12 along the circumferential direction of the housing 1 to limit a rotation angle of the limiting member 4. It will be appreciated that the stop portion 12 may be a rib structure, and the extension length of the stop portion 12 may be designed according to the angular range of the ball 21 around the Z axis. For example, the stop 12 may be semi-looped within the housing 1. For another example, the stopper 12 may be provided with two stopper points that are arranged on the inner wall of the housing 1 at intervals in the circumferential direction of the housing 1. The ball head rotating device 10 of the embodiment of the utility model can lead the structure of the ball head rotating device 10 to be simple, the processing and the manufacturing to be convenient and the limiting effect to be better by arranging the limiting piece 4 and the stop part 12 to be in the structure.

Alternatively, as shown in fig. 10 and 12, the ball 21 is provided with an outer tangential surface 211, the inner peripheral wall of the mounting hole 411 is provided with a mating portion 43, the mating portion 43 is opposite to the outer tangential surface 211, and when the ball 21 rotates around the axis of the through hole 111, the outer tangential surface 211 abuts against the mating portion 43 to drive the stop member 4 to rotate synchronously. For example, the external surface 211 may be a plane or an arc surface 112, and the engaging portion 43 does not interfere with the ball 21 when the ball 21 rotates around the X-axis or the Y-axis. When the ball head 21 rotates around the Z axis, the stop action of the outer tangential surface 211 and the matching part 43 drives the limiting piece 4 to synchronously rotate. Of course, it is also possible that after the ball 21 rotates around the Z axis by a certain angle, the external surface 211 abuts against the mating portion 43, and then drives the limiting member 4 to rotate until the limiting member 4 abuts against the stop member, so as to limit the ball 21 to continue rotating, and form an angle limit. The ball head rotating device 10 of the embodiment of the utility model can facilitate the processing and manufacturing of the ball head rotating device 10 and the assembly by connecting the ball head 21 and the limiting piece 4 in a mode of adopting the external tangent plane 211 and the matching part 43.

In some embodiments, as shown in fig. 6 and 10, the ball shaft 2 includes a shaft body 22 and a ball head 21, the shaft body 22 is connected with the ball head 21 and is located at the outer side of the housing 1, and an arc surface 112 is disposed on the peripheral wall of the through hole 111, where the arc surface 112 is attached to the ball head 21. It can be understood that part of the ball head 21 protrudes outside the shell 1, and is attached to and contained with the ball head 21 through the arc-shaped surface 112, so that the connection reliability of the ball head 21 can be ensured. In addition, since the shaft body 22 extends out of the housing 1, when the ball 21 rotates around the X-axis or the Y-axis by a certain angle, the shaft body 22 will stop with the outer edge of the through hole 111, so as to limit the rotation angle of the ball 21 around the X-axis or the Y-axis, thereby further avoiding the damage of the cable 40 caused by excessive rotation.

In some embodiments, as shown in fig. 9 and 11, one end of the housing 1 has a top shell 11, the other end of the housing 1 has an opening 113, a through hole 111 is provided on the top shell 11, the base assembly 3 is detachably mounted at the opening 113, a ball socket 313 is provided on the base assembly 3, the ball head 21 is pivotably provided in the ball socket 313, and the stopper 4 is provided between the base assembly 3 and the top shell 11. It can be understood that when the ball head turning device 10 is installed, the ball shaft 2 can be installed into the housing 1 through the opening 113, the shaft body 22 passes through the through hole 111, the limiting member 4 is sleeved on the ball head 21, the base assembly 3 is blocked at the opening 113, and the ball socket 313 is tightly attached to the ball head 21. The ball head rotating device 10 of the embodiment of the utility model can facilitate the processing and manufacturing of the ball head rotating device 10 by connecting the ball head rotating device 10 in the mode, and has compact structural design and good use effect.

Alternatively, as shown in fig. 5 to 7, the base assembly 3 includes a base 32 and a support 31, the base 32 is screw-fitted in the housing 1, the support 31 is located between the base 32 and the ball head 21, and the ball socket 313 is provided on the support 31. Specifically, the opening 113 of the housing 1 is provided with an internal thread, the outer periphery of the base 32 is provided with an external thread, and the base 32 is connected with the housing 1 in a threaded fit manner, so that the ball head rotating device 10 can be conveniently installed and disassembled, and is convenient to process and manufacture.

In some embodiments, as shown in fig. 5 to 7, the base assembly 3 further includes an elastic member 33, the elastic member 33 is disposed between the support member 31 and the base 32, and the elastic member 33 urges the support member 31 toward the ball head 21. It can be appreciated that the elastic member 33 can apply an elastic force to the supporting member 31, so that the ball 21 has a damping effect when rotating, so that the ball 21 can hover at any position, and the use experience of the ball rotating device 10 is better.

Alternatively, as shown in fig. 5 to 7, the supporting member 31 is provided with a guide post 311, the base 32 is provided with a guide hole 321, the guide post 311 is disposed through the guide hole 321 and slidably connected to the guide hole 321, and the elastic member 33 is sleeved on the guide post 311. It can be understood that the elastic member 33 is a coil spring, and two axial ends of the elastic member 33 are respectively abutted against the supporting member 31 and the base 32, so that the stability of the installation of the elastic member 33 can be improved, and the support of the ball head 21 is more reliable.

In some embodiments, as shown in fig. 9, a first wire through hole 23 is formed in the ball shaft 2, the first wire through hole 23 extends along the length direction of the ball shaft 2, a second wire through hole 312 is formed in the support 31, one end of the second wire through hole 312 is communicated with the first wire through hole 23, and the other end of the second wire through hole 312 is communicated with the outside of the housing 1. It can be appreciated that the cable 40 can travel inside the ball head rotating device 10, and the cable 40 can sequentially pass through the first wire passing hole 23, the second wire passing hole 312 and the guide hole 321, so that the cable 40 can be hidden, the problem that the cable 40 is exposed is avoided, and the use experience of a user is improved.

Optionally, as shown in fig. 5 to 7, the ball head rotation device 10 further includes a reinforcing ring 5, where the reinforcing ring 5 is sleeved on the top shell 11, so that the shell 1 can be processed, so as to further improve the structural strength of the ball head rotation device 10 and prolong the service life of the ball head rotation device 10.

As shown in fig. 1 and 2, a lighting device according to another embodiment of the present utility model includes: the bulb comprises a lamp main body 20, a bulb rotating device 10 and a lamp cap 30. The ball head rotating device 10 is the ball head rotating device 10 of the utility model, one end of the ball shaft 2, which is away from the ball head 21, is connected with the lamp main body 20, and one end of the shell 1, which is away from the through hole 111, is connected with the lamp cap 30.

According to the lighting equipment provided by the embodiment of the utility model, when the ball head 21 rotates around the axis of the through hole 111, the ball head 21 can drive the limiting piece 4 to rotate, and the limiting piece 4 is propped against the stop part 12, so that the rotation angle of the limiting piece 4 can be restrained, and the problem that the ball head 21 excessively rotates around the axis of the through hole 111 can be avoided. In addition, the bulb rotating device 10 of the lighting equipment adopts a bulb 21 structure, so that the bulb shaft 2 can rotate in any direction within a certain range, the rotating flexibility of the bulb rotating device 10 is improved, and the bulb rotating device is simple in structural design and low in cost.

Alternatively, as shown in fig. 2, 3 and 10, a connection hole (not shown) is provided on the lamp main body 20, and one end of the shaft body 22 facing away from the ball 21 is inserted into the connection hole and fixed by the fastening nut 6. For another example, a side wall of one end of the shaft body 22, which is away from the ball head 21, is provided with a limiting surface 221, so as to avoid relative rotation between the ball shaft 2 and the lamp main body 20. According to the lighting device provided by the embodiment of the utility model, the lamp main body 20 and the ball shaft 2 are fixed by the fastening nut 6, and the ball shaft 2 and the lamp main body 20 are prevented from rotating relatively by the limiting surface 221, so that the lamp main body 20 and the ball head rotating device 10 are more reliably connected, and the mounting and the dismounting are facilitated.

Alternatively, as shown in fig. 2 and 3, the outer periphery of the housing 1 is provided with a flange 13, and the flange 13 is connected to the base 30 by the screw member 7. For example, the number of screws 7 is plural, and the plural screws 7 are arranged at intervals along the circumferential direction of the flange 13. The lighting device of the embodiment of the utility model can improve the reliability of the connection of the lamp cap 30 and the ball head rotating device 10 and is convenient to install and disassemble by connecting the shell 1 and the lamp cap 30 in the mode.

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.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should 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 of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (13)

1. A ball head rotation device, comprising:

the shell is provided with a through hole;

the ball shaft penetrates through the through hole, the ball shaft is provided with a ball head, and at least part of the ball head is arranged in the shell;

the base component is arranged on one side of the ball head, which is away from the through hole, and is connected with the shell, and the ball head can rotate relative to the base component;

the limiting piece is arranged on the ball head, the ball head can drive the limiting piece to rotate around the axis of the through hole, a stop part is arranged in the shell, and the limiting piece can prop against the stop part so as to limit the rotation angle of the ball head around the axis of the through hole.

2. The ball head rotating device according to claim 1, wherein the limiting member is provided with a mounting hole, the ball head is sleeved in the mounting hole, the ball head is rotatable relative to the limiting member around a preset direction, an included angle is formed between the preset direction and an axis of the through hole, a limiting portion is arranged on the periphery of the limiting member, and the limiting portion can abut against the stop portion.

3. The ball head rotating device according to claim 2, wherein the limiting member comprises an annular body and the limiting portion, the mounting hole is formed in the annular body, the limiting portion is formed in the outer peripheral edge of the annular body and protrudes toward the inner wall of the housing, the stopping portion is arranged along the circumferential direction of the housing, and the limiting portion can respectively abut against two ends of the stopping portion along the circumferential direction of the housing to limit the rotating angle of the limiting member.

4. The ball head rotating device according to claim 2, wherein an outer tangential surface is provided on the ball head, a mating portion is provided on an inner circumferential wall of the mounting hole, the mating portion is opposite to the outer tangential surface, and when the ball head rotates around an axis of the through hole, the outer tangential surface abuts against the mating portion to drive the limiting member to rotate synchronously.

5. The ball head rotating device according to claim 1, wherein the ball shaft comprises a shaft body and the ball head, the shaft body is connected with the ball head and located on the outer side of the shell, an arc-shaped surface is arranged on the peripheral wall of the through hole, and the arc-shaped surface is attached to the ball head.

6. The ball pivot assembly of any one of claims 1-5 wherein the housing has a top shell at one end and an opening at the other end, the through hole is formed in the top shell, the base assembly is detachably mounted in the opening, a ball socket is formed in the base assembly, the ball is pivotally disposed in the ball socket, and the retainer is disposed between the base assembly and the top shell.

7. The ball head rotational device of claim 6, wherein the base assembly comprises a base and a support, the base being threadedly engaged within the housing, the support being located between the base and the ball head, and the socket being located on the support.

8. The ball pivot assembly of claim 7 wherein the base assembly further comprises an elastic member disposed between the support member and the base, the elastic member urging the support member toward the ball.

9. The ball head rotating device according to claim 8, wherein the supporting member is provided with a guide post, the base is provided with a guide hole, the guide post is arranged through the guide hole and is slidably connected with the guide hole, and the elastic member is sleeved on the guide post.

10. The ball head turning device according to claim 1, wherein a first wire passing hole penetrates through the ball shaft, the first wire passing hole extends along the length direction of the ball shaft, a second wire passing hole penetrates through the base assembly, one end of the second wire passing hole is communicated with the first wire passing hole, and the other end of the second wire passing hole is communicated with the outside of the shell.

11. The ball head turning device of claim 1, wherein one end of the housing has a top shell, the through hole is provided on the top shell, the ball head turning device further comprises a reinforcing ring, and the reinforcing ring is sleeved on the top shell.

12. A lighting device, comprising:

a lamp body;

the bulb rotating device is as claimed in any one of claims 1 to 11, and one end of the bulb shaft, which is away from the bulb, is connected with the lamp main body;

the lamp cap, the casing deviate from the one end of through-hole with the lamp cap links to each other.

13. A lighting device as recited in claim 12, wherein said ball axle comprises an axle body and said ball head, said axle body being connected to said ball head, said lamp body being provided with a connecting hole, an end of said axle body facing away from said ball head being disposed through said connecting hole and being secured thereto by a fastening nut;

and/or the outer periphery of the shell is provided with a flange, and the flange is connected with the lamp cap through a screw.