CN220135043U

CN220135043U - Monitoring device

Info

Publication number: CN220135043U
Application number: CN202321459225.4U
Authority: CN
Inventors: 杨彬
Original assignee: Chengdu Panorama Intelligent Technology Co ltd
Current assignee: Chengdu Panorama Intelligent Technology Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-12-05
Anticipated expiration: 2033-06-08

Abstract

The utility model discloses a monitoring device which comprises a bracket, a camera shooting assembly and a rotating assembly, wherein the camera shooting assembly comprises a mounting surface facing the bracket, the rotating assembly comprises a rotary table structure and a limiting piece, the rotary table structure and the bracket are fixedly connected, and the limiting piece is fixedly connected with the mounting surface and is abutted to one side of the rotary table structure, which is far away from the mounting surface, so that the rotary table structure is stopped in a direction away from the mounting surface. According to the technical scheme, the camera shooting assembly can rotate relative to the support, so that the monitoring area of the camera shooting assembly can be adjusted, and the use experience of a user is improved.

Description

Monitoring device

Technical Field

The utility model relates to the technical field of monitoring equipment, in particular to a monitoring device.

Background

In daily life, in order to ensure property safety of people, a monitoring device is required to monitor some environments.

The monitoring device in the prior art comprises a bracket and a camera shooting assembly, wherein the camera shooting assembly is hung on a wall surface by being installed on the bracket. However, most of the camera modules of the monitoring device cannot rotate relative to the support, so that a user cannot adjust the monitoring area of the camera modules according to actual requirements, and the use experience of the user is affected.

Disclosure of Invention

The embodiment of the utility model provides a monitoring device which can realize the rotation of a camera shooting assembly relative to a bracket so as to adjust the monitoring area of the camera shooting assembly and improve the use experience of a user.

The embodiment of the utility model provides a monitoring device, which comprises:

a bracket;

a camera assembly including a mounting surface facing the bracket; and

the rotating assembly comprises a rotating disc structure capable of rotating relatively and a limiting piece, wherein the rotating disc structure is fixedly connected with the support, the limiting piece is fixedly connected with the mounting surface and is abutted to one side, deviating from the mounting surface, of the rotating disc structure, and the rotating disc structure is stopped in the direction away from the mounting surface.

According to the monitoring device provided by the embodiment of the utility model, the rotating assembly is adopted to drive the camera shooting assembly to rotate relative to the support, namely, the rotating assembly comprises the turntable structure and the limiting piece, the turntable structure is fixedly connected with the support, and the limiting piece can be abutted to the turntable structure under the condition of fixedly connecting the mounting surface of the camera shooting assembly, so that the turntable structure is stopped by the limiting piece under the condition of realizing the relative rotation of the turntable structure and the camera shooting assembly. Therefore, the monitoring area of the camera shooting assembly can be adjusted by directly rotating the camera shooting assembly according to the actual demands and the actual use environment conditions of the user, and the use experience of the user is improved while the user operation is facilitated.

In some embodiments, the turntable structure comprises a turntable main body and a skirt edge arranged on the outer side of the turntable main body in a surrounding mode, the turntable main body is rotationally connected with the mounting surface, one side, away from the mounting surface, of the turntable main body is fixedly connected with the bracket, and the limiting piece is abutted to one side, away from the mounting surface, of the skirt edge.

In some embodiments, one of a limit protrusion and a limit groove is arranged on the surface of the turntable structure facing the camera assembly, and the other of the limit protrusion and the limit groove is arranged on the mounting surface;

the limiting protrusion extends into the limiting groove, and the groove walls of the limiting groove along the two ends of the length direction are matched with the limiting protrusion in a stop mode so as to limit the rotation angle of the camera shooting assembly.

In some embodiments, a buckle is further arranged on the surface of the turntable structure facing the camera shooting assembly, a plurality of clamping grooves are further arranged on the mounting surface, and the clamping grooves are distributed at intervals along the circumferential direction of the camera shooting assembly;

when the camera shooting assembly rotates relative to the turntable structure, the buckle can be connected to any clamping groove, so that the camera shooting assembly can be fixed at the position of a set angle after rotating relative to the turntable structure.

In some embodiments, the buckle is formed with a guiding inclined surface for guiding and matching with the groove side wall of the clamping groove.

In some embodiments, a surface of the camera assembly facing the bracket is recessed in a direction away from the bracket to form a receiving groove, and a groove bottom wall of the receiving groove is formed as the mounting surface;

the rotary table structure is at least partially accommodated in the accommodating groove, and the limiting piece is fixedly connected to the bottom wall of the accommodating groove.

In some embodiments, the fixed connection of the turntable structure and the bracket is a detachable fixed connection.

In some embodiments, one side of the turntable structure, which faces away from the mounting surface, is provided with one of a fixing buckle and a fixing groove, and the bracket is provided with the other of the fixing buckle and the fixing groove, and the fixing buckle is clamped in the fixing groove.

In some embodiments, a first limit button is further disposed on a side, facing away from the mounting surface, of the turntable structure, a second limit button is further disposed on the support, and the first limit button can move back and forth relative to the second limit button to abut against or separate from the second limit button, so that the fixing button and the fixing groove are further clamped or separated.

In some embodiments, the bracket comprises a bracket main body and a mounting part, wherein the bracket main body comprises a first bracket body and a second bracket body which are connected, and the mounting part is fixedly connected with the turntable structure and is connected with the first bracket body;

the first support body with the second support body is the contained angle setting, just first support body with the second support body all is provided with the connecting portion that is used for being connected with the installation environment.

Drawings

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

FIG. 1 is a schematic diagram of a monitoring device according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the monitor device of FIG. 1;

FIG. 3 is an exploded view of the monitoring device of FIG. 1 from another perspective;

FIG. 4 is a schematic cross-sectional view of the monitoring device shown in FIG. 1;

FIG. 5 is a schematic view of a camera assembly of the monitoring device of FIG. 1;

fig. 6 is a schematic structural diagram of a turntable structure of the monitoring device in fig. 1.

Reference numerals illustrate:

100. a monitoring device; 10. a bracket; 11. a holder main body; 111. a first frame body; 113. a second frame body; 115. a connection part; 13. a mounting part; 131. a fixing groove; 133. the second limit button; 30. a camera assembly; 31. a housing; 311. a housing; 313. a bottom case; 3131. a mounting surface; 3131a, a receiving groove; 3131b, limit grooves; 3131c, a clamping groove; 33. a camera; 50. a rotating assembly; 51. a turntable structure; 511. a turntable body; 513. a skirt edge; 515. a limit protrusion; 517. a buckle; 5171. a guide slope; 518. a fixing buckle; 519. the first limit button; 53. and a limiting piece.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with some aspects of the utility model as detailed in the accompanying claims.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In daily life, in order to ensure property safety of people, a monitoring device is required to monitor some environments. The monitoring device in the prior art comprises a bracket and a camera shooting assembly, wherein the camera shooting assembly is hung on a wall surface by being installed on the bracket. However, most of the camera modules of the monitoring device cannot rotate relative to the support, so that a user cannot adjust the shooting angle of the camera modules according to actual demands, and the use experience of the user is affected.

In order to solve the above-mentioned problems, referring to fig. 1 to 3, a monitoring device 100 is provided, and in an embodiment of the utility model, the monitoring device 100 includes a camera assembly 30, a rotating assembly 50 and a bracket 10, wherein the camera assembly 30 is fixedly connected to the bracket 10 through the rotating assembly 50 so as to be suspended in an installation environment through the bracket 10.

The camera assembly 30 includes a housing 31 and a camera 33, and the camera 33 is fixedly mounted on the housing 31 and is used for monitoring some environments, such as an applicable installation environment for residential houses, building villas, mall stores or financial offices, etc., so as to ensure self safety and property safety of people.

The number of cameras 33 may be one or more, and the plurality of cameras 33 may be arranged at intervals along the height direction of the housing 31, for example, in the scheme illustrated in the drawings, the number of cameras 33 is two. Thus, by increasing the number of cameras 33, the effect of obtaining a wider imaging area can be achieved, the finally obtained monitoring area is also larger, and the monitoring effect is improved.

In an embodiment, the housing 31 includes a casing 311 and a bottom casing 313 that are connected, the camera 33 is mounted on the casing 311, specifically, the connection between the casing 311 and the bottom casing 313 may be a detachable connection, and when the camera 33 or other devices in the camera assembly 30 need to be replaced or repaired, the bottom casing 313 may be directly detached from the casing 311, and then the camera 33 or other devices in the camera assembly 30 may be directly taken out, so as to facilitate operation. Wherein the bottom case 313 of the camera assembly 30 includes a mounting surface 3131 facing the stand 10.

It can be appreciated that in the case where the housing 31 is provided in a two-part structure of the outer case 311 and the bottom case 313, there is an advantage in that it is convenient to take out and maintain the devices such as the camera 33 of the image pickup assembly 30. Of course, the housing 31 of the present utility model may be a cylindrical structure separately provided as a single body, that is, the outer shell 311 and the bottom shell 313 are integrally formed, which simplifies the manufacturing process. The following further describes the case where the monitoring device 100 of the present utility model is capable of adjusting the monitoring angle, in the form that the housing 31 is provided as two parts of the outer case 311 and the bottom case 313.

The rotating assembly 50 comprises a rotating disc structure 51 and a limiting piece 53 which rotate relatively, wherein the rotating disc structure 51 is fixedly connected with the bracket 10, and the limiting piece 53 is fixedly connected with the mounting surface 3131 and is abutted against one side of the rotating disc structure 51 away from the mounting surface 3131 so as to stop the rotating disc structure 51 in a direction away from the mounting surface 3131. In this arrangement, the turntable structure 51 is fixedly connected to the stand 10, and the stopper 53 fixedly connected to the mounting surface 3131 is abutted against the turntable structure 51 in a direction away from the mounting surface 3131, so that the turntable structure 51 and the imaging module 30 can rotate relative to each other.

In one configuration, a surface of the bottom case 313 of the image pickup assembly 30 facing the bracket 10 is recessed in a direction away from the bracket 10 to form a receiving groove 3131a, and a groove bottom wall of the receiving groove 3131a is formed as a mounting surface 3131.

The stopper 53 is fixedly attached to the groove bottom wall of the accommodating groove 3131 a. The turntable structure 51 is at least partially accommodated in the accommodating groove 3131a, that is, the turntable structure 51 may be partially accommodated in the accommodating groove 3131a, or the whole turntable structure 51 may be accommodated in the accommodating groove 3131 a. In this way, the accommodating of the turntable structure 51 and the limiting member 53 can be realized through the recessed accommodating groove 3131a, so that the turntable structure 51 and the limiting member 53 of the rotating assembly 50 are prevented from protruding from the bottom shell 313 or protruding from the bottom shell 313 too much in the direction away from the mounting surface 3131, so that the overall volume of the monitoring device 100 is more compact, and the miniaturization of the monitoring device 100 is realized.

The bracket 10 may be used for being installed on an indoor or outdoor wall surface in an installation environment, but may be used for being installed on a telegraph pole, which is not limited thereto. The main structure of the bracket 10 may be made of a plastic material, for example, ABS (Acrylonitrile Butadiene Styrene plastic, acrylonitrile butadiene styrene) plastic material, which has the advantages of light weight, firmness, and the like, however, the main structure of the bracket 10 may also be made of an aluminum alloy material, which has the advantages of better strength and better stability, and the like, and the utility model is not limited thereto.

The stand 10 includes a mounting portion 13 and a stand body 11, and a mounting surface 3131 of a bottom case 313 of the image pickup assembly 30 faces the mounting portion 13 of the stand 10, and the turntable structure 51 is fixedly connected to the mounting portion 13 of the stand 10. The bracket main body 11 comprises a first bracket body 111 and a second bracket body 113 which are connected, the mounting part 13 is connected with the first bracket body 111, and the first bracket body 111 and the second bracket body 113 are arranged at an included angle. Wherein, the wall surface of the installation environment may include a wall side wall and a ceiling, the first frame 111 may be provided with a connection portion 115 for connecting with the wall side wall of the installation environment, for example, may be a mounting hole structure, and the second frame 113 may be provided with a connection portion 115 for connecting with the ceiling of the installation environment, and may also be a mounting hole structure, and in the practical application process, a user may select the first frame 111 or the second frame 113 of the bracket main body 11 to connect with the installation environment according to the monitoring range requirement and the installation space condition. Therefore, the user has more selectivity, and the use experience of the user can be improved.

According to the technical scheme, the rotation assembly 50 is adopted to drive the camera shooting assembly 30 to rotate relative to the support 10, namely, the rotation assembly 50 comprises a turntable structure 51 and a limiting piece 53, the turntable structure 51 is fixedly connected with the support 10, and the limiting piece 53 can be abutted against the turntable structure 51 under the condition of being fixedly connected with the mounting surface 3131 of the camera shooting assembly 30, so that the turntable structure 51 is stopped by the limiting piece 53 under the condition of realizing relative rotation of the turntable structure 51 and the camera shooting assembly 30. Therefore, according to the actual demands and the actual use environment conditions of the user, the monitoring area of the camera shooting assembly 30 can be adjusted by directly rotating the camera shooting assembly 30, so that the user operation is convenient, and the use experience of the user is improved.

In one embodiment, referring to fig. 2-4 in combination, the turntable structure 51 includes a turntable body 511 and a skirt 513 disposed around the outside of the turntable body 511. The skirt 513 and the turntable body 511 may be integrally formed by injection molding, or may be formed separately and fixed by gluing, hot melting, or the like.

The turntable body 511 is rotatably connected to the mounting surface 3131, and one side thereof facing away from the mounting surface 3131 is fixedly connected to the bracket 10, and the stopper 53 abuts against one side of the skirt 513 facing away from the mounting surface 3131. Under such setting, can carry out the backstop to the shirt rim 513 of carousel structure 51 through locating part 53, and guarantee carousel main part 511 under not being stopped by locating part 53, can guarantee the rotation smoothness nature between carousel main part 511 and the subassembly 30 of making a video recording, improve user's use experience.

In order to avoid an excessive rotation range of the camera assembly 30 while the camera assembly 30 is rotated, in one configuration, one of the limit projection 515 and the limit groove 3131b is provided on a surface of the turntable structure 51 facing the camera assembly 30, and the other of the limit projection 515 and the limit groove 3131b is provided on the mounting surface 3131. Exemplarily, a limiting protrusion 515 is disposed on a surface of the turntable structure 51 facing the camera module 30, and a limiting groove 3131b is disposed on the mounting surface 3131; the surface of the turntable structure 51 facing the camera module 30 may be provided with a limit groove 3131b, and the mounting surface 3131 may be provided with a limit protrusion 515.

The limiting protrusion 515 extends into the limiting groove 3131b, and the groove walls of the limiting groove 3131b along the two ends of the length direction are matched with the limiting protrusion 515 in a stop mode so as to limit the rotation angle of the camera assembly 30. The limiting groove 3131b may be an arc groove, that is, an extending track of the limiting groove 3131b is configured as an arc track, and an arc center of the arc track is located on the rotation axis of the camera assembly 30. In this way, the spacing protrusion 515 and the spacing groove 3131b cooperate to realize spacing rotation of the camera assembly 30, so as to avoid interference between the camera assembly 30 and the installation environment caused by excessive rotation.

Further, referring to fig. 3, 5 and 6 in combination, the surface of the turntable structure 51 facing the camera module 30 is further provided with a buckle 517, the mounting surface 3131 is further provided with a plurality of clamping grooves 3131c, and the plurality of clamping grooves 3131c are arranged at intervals along the circumferential direction of the camera module 30;

when the camera assembly 30 rotates relative to the turntable structure 51, the buckle 517 can be connected to any one of the clamping grooves 3131c, so that the camera assembly 30 can be fixed at a set angle after rotating relative to the turntable structure 51. By means of the arrangement, gear adjustment rotation of the camera assembly 30 can be achieved, the camera assembly 30 can stably stay at the position on the set angle after rotating the set angle, position deviation is avoided, and therefore the camera assembly 30 can keep stable, and finally an imaging image of the camera assembly 30 is clearer.

The catch 517 is formed with a guide slope 5171, and the guide slope 5171 is used for guiding and matching with the groove side wall of the catch 3131 c. The guide inclined surface 5171 is matched with the groove side wall of the clamping groove 3131c, so that when the rotation of the camera shooting assembly 30 is realized, the clamping buckle 517 is clamped to the other clamping groove 3131c by the clamping groove 3131c, the guide inclined surface 5171 of the clamping buckle 517 is matched with the groove side wall of the clamping groove 3131c, the moving fluency of the clamping buckle 517 is improved, the relative rotation flow of the rotary table structure 51 of the camera shooting assembly 30 and the rotary assembly 50 is improved, and the use experience of a user is improved.

In the above, the monitoring device 100 of the present utility model has been described in terms of the form in which the camera module 30 is rotated by the rotating module 50, which has the advantage that the rotation of the camera module 30 is adjustable. On this basis, in order to facilitate the maintenance of the camera assembly 30 alone, the utility model may also be that the fixed connection between the turntable structure 51 and the bracket 10 is detachably fixed connection. In the in-service use, when needing to maintain the subassembly 30 of making a video recording, can dismantle carousel structure 51 by support 10, realize making a video recording the dismantlement of subassembly 30 on support 10 to can maintain the subassembly 30 of making a video recording alone, need not to dismantle the support 10 of monitoring device 100 by the installation environment down, the operation of being convenient for.

In an embodiment, referring to fig. 2 to 3, one side of the turntable structure 51 facing away from the mounting surface 3131 is provided with one of a fixing button 518 and a fixing slot 131, the mounting portion 13 of the bracket 10 is provided with the other of the fixing button 518 and the fixing slot 131, and the fixing button 518 is clamped in the fixing slot 131. Exemplarily, the turntable structure 51 is provided with a fixing button 518, and the mounting portion 13 of the bracket 10 is provided with a fixing groove 131; the turntable structure 51 may be provided with a fixing groove 131, and the mounting portion 13 of the bracket 10 may be provided with a fixing button 518. In this way, the fixing button 518 and the fixing groove 131 can be matched to realize the detachable and fixed connection of the turntable structure 51 and the bracket 10. And the fixing buckle 518 can be manufactured by integrally forming with the turntable structure 51, for example, by injection molding, so that the production is facilitated and the assembly steps are reduced. Under the cooperation assembly of the fixing buckle 518 and the fixing groove 131, other locking accessories such as screws, nuts and the like are not needed, so that the cost can be saved. Of course, the detachable fixed connection between the turntable structure 51 and the bracket 10 may be, but not limited to, a snap connection, a threaded connection, or the like.

In the scheme shown in the drawings, a plurality of fixing buckles 518 and a plurality of fixing grooves 131 are provided, the plurality of fixing buckles 518 are arranged at intervals along the circumferential direction of the turntable structure 51, and the plurality of fixing buckles 518 and the plurality of fixing grooves 131 are in one-to-one correspondence. By the arrangement, the connection stability of the turntable structure 51 and the support 10 can be further improved, and the damage to the camera shooting assembly 30 caused by falling of the turntable structure 51 and the support 10 is avoided. The number of the fixing buckles 518 may be two, three, four, or the like, which is not limited.

In one structural form, a first limit button 519 is further disposed on a side of the turntable structure 51 facing away from the mounting surface 3131, the bracket 10 is further provided with a second limit button 133, and the first limit button 519 can move back and forth relative to the second limit button 133 to abut against or separate from the second limit button 133, so that the fixing button 518 is further engaged with or separated from the fixing groove 131. During the actual assembly, the fixing button 518 can be engaged with or disengaged from the fixing groove 131 in a direction perpendicular to a direction away from the mounting surface 3131. Therefore, by being provided with the first limit button 519 and the second limit button 133 that are engaged with each other, the first limit button 519 can be moved back and forth in a direction perpendicular to a direction away from the mounting surface 3131 to abut against or disengage from the second limit button 133, and, in a state in which the fixing button 518 is engaged with the fixing groove 131, limiting of the turntable structure 51 and the bracket 10 in a direction perpendicular to a direction away from the mounting surface 3131 is achieved by the first limit button 519 and the second limit button 133, so that the connection stability of the turntable structure 51 and the bracket 10 is further improved.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A monitoring device, comprising:

a bracket;

a camera assembly including a mounting surface facing the bracket; and

2. The monitoring device according to claim 1, wherein the turntable structure comprises a turntable main body and a skirt rim which is annularly arranged on the outer side of the turntable main body, the turntable main body is rotatably connected with the mounting surface, one side of the turntable main body, which is away from the mounting surface, is fixedly connected with the bracket, and the limiting piece is abutted against one side of the skirt rim, which is away from the mounting surface.

3. The monitoring device according to claim 1, wherein one of a limit projection and a limit groove is provided on a surface of the turntable structure facing the camera module, and the other of the limit projection and the limit groove is provided on the mounting surface;

4. The monitoring device according to claim 1, wherein a buckle is further arranged on the surface of the turntable structure facing the camera assembly, the mounting surface is further provided with a plurality of clamping grooves, and the clamping grooves are distributed at intervals along the circumferential direction of the camera assembly;

5. The monitoring device of claim 4, wherein the clasp is formed with a guide ramp for guided engagement with a slot sidewall of the clip slot.

6. The monitoring device according to claim 1, wherein a surface of the camera assembly facing the bracket is recessed in a direction away from the bracket to form a receiving groove, a bottom wall of the receiving groove being formed as the mounting surface;

7. A monitoring device according to any one of claims 1 to 6, wherein the fixed connection of the turntable structure to the support is a detachable fixed connection.

8. The monitor device according to claim 7, wherein one of a fixing buckle and a fixing groove is provided on a side of the turntable structure facing away from the mounting surface, the bracket is provided with the other of the fixing buckle and the fixing groove, and the fixing buckle is engaged with the fixing groove.

9. The monitoring device according to claim 8, wherein a first limit button is further provided on a side of the turntable structure facing away from the mounting surface, the bracket is further provided with a second limit button, and the first limit button can move back and forth relative to the second limit button to abut against or separate from the second limit button, so that the fixing button is further clamped with or separated from the fixing groove.

10. The monitoring device according to any one of claims 1 to 6, wherein the stand includes a stand body including a first stand body and a second stand body connected to each other, and a mounting portion fixedly connected to the turntable structure and connected to the first stand body;