Echo wall sound box

Abstract

The utility model relates to the technical field of sound boxes, and discloses an echo wall sound box, which comprises at least two box bodies and a rotating structure, each box body is connected with the rotating structure, and each box body rotates around the axis of the rotating structure and is static when reaching a required position; a mid-high pitch unit and a low pitch unit are arranged in each box body at intervals. When the sound box is used, the rotation angles between the box bodies are adjusted, so that the mid-high pitch unit and the low pitch unit are matched with each other to form different sound effects, the sound effect required by a user is further adjusted, that is, the user can adjust the sound effects only by rotating the box bodies, and the sound effect adjusting mode is simpler and more convenient. After the whispering wall sound box is used, the mid-high pitch unit and the low pitch unit are installed in the box body in a matched mode, a user can fold the box bodies together by rotating the box bodies, and it can be understood that the folded whispering wall sound box is small in occupied space size and more convenient to store. Therefore, it can be seen that the echo wall sound box is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of speakers, and particularly relates to a soundbar speaker. Background Art

[0002] A soundbar speaker, as a special acoustic structure or audio device, has unique acoustic characteristics and a wide range of application scenarios. In modern home theaters and audio systems, soundbar speakers are highly favored. It can simulate a surround sound effect through multiple built-in speakers and reflectors, enhancing the movie-watching and music-listening experience.

[0003] However, currently, the bass box of a soundbar speaker is usually separately set from the bar-shaped box. When in use, the user needs to manually carry and adjust the relative position of the bass box and the bar-shaped box to obtain the desired sound effect, which is rather difficult to adjust. Moreover, after use, the bass box and the bar-shaped box need to be carried and stacked for storage in the smallest space. However, due to their large volume, the space occupied after stacking is still large. Therefore, it is rather inconvenient to use. Summary of the Utility Model

[0004] To solve the deficiencies of the above-mentioned prior art, the utility model provides a soundbar speaker.

[0005] The technical effects to be achieved by the utility model are realized through the following technical aspects:

[0006] The utility model provides a soundbar speaker, comprising: at least two boxes and a rotating structure;

[0007] Each of the boxes is connected to the rotating structure, and each of the boxes rotates around the axis of the rotating structure and stops when reaching the desired position;

[0008] In each of the boxes, a mid-high frequency unit and a bass unit are arranged at intervals.

[0009] In some embodiments, the number of the boxes is set to two, the mid-high frequency unit is set to a mid-high frequency speaker, and the bass unit is set to a bass diaphragm.

[0010] In some embodiments, rotating sleeves are respectively arranged on the two boxes, the rotating structure is set to a central ring, a clamping ring is sleeved on one end of the central ring, and the clamping ring is rotatably connected to the central ring. One of the rotating sleeves is connected to the clamping ring to be rotatably connected to the central ring, and the other rotating sleeve is connected to the other end of the central ring to close or expand the two boxes around the axis of the central ring.

[0011] In some embodiments, a toothed portion is arranged on one end of the central ring, and the clamping ring is elastically abutted against the toothed portion.

[0012] In some embodiments, a plurality of tooth-shaped portions are provided, and the plurality of tooth-shaped portions are spaced apart from each other.

[0013] In some embodiments, a limiting portion for restricting the snap ring from detaching from the central ring is provided at one end of the central ring.

[0014] In some embodiments, in each of the boxes: at least two bass units are provided.

[0015] In some embodiments, a driver is further included, and an output end of the driver is connected to each of the boxes to drive each of the boxes to rotate.

[0016] In some embodiments, a power supply is externally provided on the box, and the power supply is electrically connected to each of the boxes.

[0017] In some embodiments, at least two telescopic members are further included. One end of each telescopic member is connected to the rotating structure, and the other end of each telescopic member is rotatably connected to the box. Normally, the box, the telescopic member and the rotating structure are relatively stationary. The telescopic member drives the box to rotate synchronously around the axis of the rotating structure under the action of an external force, and the box rotates around the other end of the telescopic member under the action of an external force.

[0018] In summary, the present utility model has at least the following advantages:

[0019] The soundbar speaker provided by the present utility model rotates a plurality of boxes uniformly around the axis of the rotating structure, and a mid-high frequency unit and a bass unit are installed in each box. In this way, during use, by adjusting the rotation angle between the boxes, the mid-high frequency unit and the bass unit can cooperate with each other to form different sound effects, and then the sound effects required by the user can be adjusted. That is, the user can adjust the sound effects only by rotating each box, and the sound effect adjustment method is more convenient. And after use, since the mid-high frequency unit and the bass unit are both installed in the box in cooperation, and the user can close the boxes together by rotating each box, it can be understood that the occupied space volume of the closed soundbar speaker is smaller and the storage is more convenient. In this way, it can be seen that the soundbar speaker of the present application is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the closed state of the soundbar speaker according to the embodiment of the present utility model;

[0021] Figure 2 is a front exploded structural diagram of the right box of the soundbar speaker according to the embodiment of the present utility model;

[0022] Figure 3 is Figure 2Partial enlarged schematic view of part A;

[0023] Figure 4 Schematic diagram of the reverse decomposition structure of the right box body of the soundbar speaker according to the embodiment of the present utility model;

[0024] Figure 5 Schematic diagram of the forward decomposition structure of the left box body of the soundbar speaker according to the embodiment of the present utility model;

[0025] Figure 6 Schematic diagram of the reverse decomposition structure of the left box body of the soundbar speaker according to the embodiment of the present utility model;

[0026] Figure 7 Schematic diagram of the sectional structure of the soundbar speaker according to the embodiment of the present utility model.

[0027] Markings in the figure:

[0028] 10. Soundbar speaker; 100. Box body; 110. Mid-high frequency unit; 120. Bass unit; 130. Rotating sleeve; 131. Decorative panel; 140. Front cover; 150. Rear cover; 200. Rotating structure; 210. Central ring; 211. Snap ring; 212. Tooth-shaped part; 213. Limiting part; 214. Card plate. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part, rather than all, of the embodiments of the present utility model.

[0030] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the following embodiments and accompanying drawings, the coordinate system shown in Figure 1 is referred to, with the direction indicated by the arrow of the X-axis being the right, the direction indicated by the arrow of the Y-axis being the front, and the direction indicated by the arrow of the Z-axis being the up.

[0032] Embodiment 1:

[0033] As shown in Figure 1 , Figure 2 and Figure 3As shown in the figure, this embodiment provides a soundbar speaker 10, which includes: at least two boxes 100 and a rotating structure 200; each box 100 is connected to the rotating structure 200, and each box 100 rotates around the axis of the rotating structure 200 and stops when it reaches the required position; a mid-high frequency unit 110 and a bass unit 120 are arranged at intervals in each box 100.

[0034] Specifically, the rotating structure 200 is arranged between multiple boxes 100. The rotating structure 200 is set as an annular structure and has an axis, and is connected to multiple boxes 100 to drive multiple boxes 100 to rotate around its axis. A mid-high frequency unit 110 and a bass unit 120 are installed in each box 100. In each box 100: the mid-high frequency unit 110 and the bass unit 120 can be arranged at intervals in the radial direction of the circumferential track along which it rotates, that is, arranged at intervals along the Z axis; the mid-high frequency unit 110 and the bass unit 120 can also be arranged at intervals horizontally, that is, arranged at intervals along the X axis. And the specific layout of the mid-high frequency unit 110 and the bass unit 120 is subject to actual production requirements and is not limited here. It only needs to ensure that different audio-visual effects can be produced when each box 100 rotates.

[0035] It is worth noting that by rotating multiple boxes 100 around the axis of the rotating structure 200 uniformly, and a mid-high frequency unit 110 and a bass unit 120 are installed in each box 100. In this way, when in use, by adjusting the rotation angle between each box 100, the mid-high frequency unit 110 and the bass unit 120 can be made to cooperate with each other to form different sound effects, and then the sound effects required by the user can be adjusted. That is, the user can adjust the sound effects only by rotating each box 100, and the sound effect adjustment method is more convenient. And after use, since the mid-high frequency unit 110 and the bass unit 120 are both installed in the box 100 in cooperation, and the user can close each box 100 together by rotating each box 100. It can be understood that the occupied space volume of the soundbar speaker 10 after closing is smaller and the storage is more convenient. In this way, it can be seen that the soundbar speaker 10 of this application is more convenient to use.

[0036] It is worth noting that the number of boxes 100 can be selected but not limited to three, four and six. When the number of boxes 100 is set to multiple, multiple boxes 100 can be selected but not limited to being arranged in pairs, two pairs are combined into a group, and each group is arranged adjacent to each other in front and back, so that multiple groups can be placed side by side in front and back when they need to be stored; multiple boxes 100 can also be arranged staggered in front and back, but all rotate around the axis of the rotating structure 200, so that multiple boxes 100 can be placed side by side in front and back when they need to be stored. Among them, the layout of each box 100 and the rotating structure 200 is set according to the actual production situation, and is not limited here. It is only necessary to ensure that each box 100 can be adjusted to rotate around the axis of the rotating structure 200, and the space occupied can be reduced for storage; and the way of connecting each box 100 with the rotating structure 200 can be selected but not limited to a tight connection, that is, each box 100 can rotate around the axis of the rotating structure 200 when subjected to a certain thrust, and is stable and stationary under the action of friction without external force.

[0037] In order to increase the audio-visual effect, such as Figure 2 As shown, in some embodiments, in each box 100 , at least two bass units 120 are provided.

[0038] Specifically, by setting two bass units 120, the audio-visual effect is better. It is understandable that the number of bass units 120 can also be set to other numbers, which is not limited here, as long as a good audio-visual effect can be formed.

[0039] Example 2

[0040] This embodiment is a further implementation of embodiment 1. Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the number of the cabinets 100 is set to two, the mid-high frequency unit 110 is set to a mid-high frequency speaker, and the bass unit 120 is set to a bass diaphragm.

[0041] Specifically, two boxes 100 are provided, and the two boxes 100 rotate around the axis of the rotating structure 200. In this way, the two boxes 100 can be closed when they need to be stored, and unfolded around the axis of the rotating structure 200 when they are used. Figure 1 The two boxes 100 can be closed side by side, or can be closed front and back, which is not limited here. In addition, the mid-high frequency unit 110 can be selected but not limited to a mid-high frequency speaker, and the bass unit 120 can be selected but not limited to a bass diaphragm.

[0042] In order to facilitate the two boxes 100 to rotate around the axis of the rotating structure 200, as shown in FIG. Figures 2 to 7As shown, in some embodiments, rotating sleeves 130 are respectively provided on two boxes 100. The rotating structure 200 is set as a central ring 210. A snap ring 211 is sleeved on one end of the central ring 210, and the snap ring 211 is rotatably connected to the central ring 210. One rotating sleeve 130 is connected to the snap ring 211 to be rotatably connected to the central ring 210, and the other rotating sleeve 130 is connected to the other end of the central ring 210 to close or unfold the two boxes 100 around the axis of the central ring 210.

[0043] Specifically, referring to Figure 2 、 Figure 3 、 Figure 4 and Figure 7 , a snap ring 211 is sleeved on the front end of the central ring 210, that is, a ring-shaped portion protrudes from the front end of the central ring 210. The snap ring 211 is sleeved on the ring-shaped portion and rotates around the ring-shaped portion in a manner of a large ring sleeving a small ring. Rotating sleeves 130 are respectively provided at the tops of the two boxes 100. Referring to Figure 2 、 Figure 3 、 Figure 4 and Figure 7 , the rear end of the rotating sleeve 130 of the right box 100 is sleeved on the snap ring 211 and fixedly connected to the snap ring 211. When the right box 100 is rotated, the right box 100 drives the snap ring 211 to rotate synchronously. The snap ring 211 rotates on the ring-shaped portion, so that the right box 100 can rotate around the axis of the central ring 210. Referring to Figure 5 、 Figure 6 and Figure 7 , the front end of the rotating sleeve 130 of the left box 100 is fixedly connected to the rear end of the central ring 210. The rotating sleeve 130 and the central ring 210 will move synchronously. When the left box 100 is rotated, the left box 100 can rotate relative to the stationary snap ring 211. In this way, both the left box 100 and the right box 100 can rotate around the axis of the central ring 210.

[0044] Among them, the connection between the rotating sleeve 130 of the right box 100 and the front end of the snap ring 211 can be, but is not limited to, a snap connection. The connection between the rotating sleeve 130 of the left box 100 and the rear end of the central ring 210 can be, but is not limited to, a snap connection. Referring to Figure 5 , a clamping plate 214 is provided between the rear end of the central ring 210 and the rotating sleeve 130 of the left box 100 to correspondingly fix the rotating sleeve 130 of the left box 100 on the rear end of the central ring 210. And referring to Figures 2 to 7 , a decorative plate 131 is embedded at one end of the rotating sleeve 130 away from the central ring 210. The two rotating sleeves 130 and the central ring 210 are installed in a manner of matching an annular slide rail and an annular slider, so as to facilitate the relative rotation of the two boxes 100.

[0045] It is understandable that the arrangement of components inside the box body 100 is subject to actual production requirements and is not limited herein. As shown in the reference Figures 2 to 7 , the box body 100 includes a front cover 140 and a rear cover 150. The front cover 140 and the rear cover 150 can be optionally but not limited to be connected by snapping. A board body for positioning and installing a sound generating unit is installed on the front side of the rear cover 150, and a button switch etc. is correspondingly arranged on the front side of the front cover 140. A rotating sleeve 130 is connected to the top end of the front cover 140. Thus, a bass unit 120, a 3C full range speaker, another bass unit 120, and a mid-high frequency unit 110 can be sequentially installed on the board body from top to bottom.

[0046] To facilitate the adjustment of the rotation angle, as shown in Figure 2 and Figure 3 , in some embodiments, a toothed portion 212 is provided at one end of the central ring 210, and the snap ring 211 elastically abuts against the toothed portion 212.

[0047] Specifically, the front end of the annular portion protrudes outward to form a toothed portion 212, and the outer surface of the toothed portion 212 is in sliding connection with the inner surface of the snap ring 211. Thus, when the box body 100 is rotated, the inner surface of the snap ring 211 slides on the toothed portion 212 and elastically engages with the outer surface of the toothed portion 212, thereby facilitating the adjustment of the angle accuracy when the two box bodies 100 are rotated.

[0048] To facilitate material saving while ensuring the rotation accuracy, as shown in Figure 2 and Figure 3 , in some embodiments, a plurality of toothed portions 212 are provided, and the plurality of toothed portions 212 are spaced apart from each other.

[0049] Specifically, the front end of the annular portion protrudes outward to form a plurality of toothed portions 212. The number of the toothed portions 212 can be optionally but not limited to six. Moreover, the toothed portions 212 are spaced apart from each other and surround the annular portion. That is, a plurality of toothed portions 212 replace an entire toothed ring, reducing the material consumption cost while effectively ensuring the adjustment of the rotation accuracy.

[0050] To prevent the snap ring 211 from easily detaching from the central ring 210, as shown in Figure 2 and Figure 3 , in some embodiments, a limiting portion 213 for restricting the snap ring 211 from detaching from the central ring 210 is provided at one end of the central ring 210.

[0051] Specifically, the limiting portion 213 can be optionally but not limited to an L-shaped clamping block, and the end of the L-shaped clamping block away from the central ring 210 is arranged inward to be clamped with the end face of the snap ring 211 away from the central ring 210, preventing the snap ring 211 from detaching from the central ring 210.

[0052] Further, a chamfer is provided at one end of the L-shaped clamping block away from the central ring 210, which facilitates the assembly of the clamping ring 211.

[0053] To facilitate the placement of the cabinet 100, as Figure 1 shown, in some embodiments, the cabinet 100 is provided with a shockproof structure.

[0054] Specifically, by providing a shockproof structure on the peripheral side of the cabinet 100, the displacement of the cabinet 100 caused by vibration during sound emission can be prevented, thereby increasing the practicality of the soundbar speaker 10. Among them, the cabinet 100 can be, but is not limited to, a foot pad, as long as it can achieve the supporting and shockproof function of the cabinet 100. And the material of the foot pad is set as rubber.

[0055] Embodiment 3

[0056] This embodiment is similar to Embodiment 1 or 2, and the difference is that, in this embodiment, the soundbar speaker 10 further includes a driver, and the output end of the driver is connected to each cabinet 100 to drive each cabinet 100 to rotate.

[0057] Specifically, the driver can be installed in the rotating structure 200. The driver can be, but is not limited to, a motor. Through the driving action of the motor on each cabinet 100, the rotation angle of each cabinet 100 can be accurately controlled. And the way that the motor drives each cabinet 100 to rotate around the axis of the rotating structure 200 is known to those skilled in the art and can be realized, so it will not be described in detail in this embodiment.

[0058] Further, the driver can be set as multiple motors, and the output end of each motor is correspondingly connected to a cabinet 100 to drive the cabinet 100 respectively. Among them, the driver can drive each cabinet 100 to rotate synchronously or drive the corresponding cabinet 100 to rotate independently. For example, the driver can synchronously drive two cabinets 100 to rotate in opposite directions.

[0059] Embodiment 4

[0060] This embodiment is a further implementation manner of Embodiment 1, Embodiment 2 or Embodiment 3. In this embodiment, a power supply is externally provided on the cabinet 100, and the power supply is electrically connected to each cabinet 100.

[0061] Specifically, by providing an external power supply, it is convenient to replace the power supply when the power supply is damaged, thereby effectively extending the service life of the soundbar speaker 10.

[0062] To facilitate the use of the external power supply, in some embodiments, the power supply is set as a battery box or a DC regulated power supply.

[0063] Specifically, the specific selection of the power supply is set according to the actual production situation. For example, the power supply is set as a battery box; for another example, the power supply is set as a DC regulated power supply. And it can be understood that the power supply can also be set as other external power supplies, as long as it can supply power to the electronic devices inside each cabinet 100.

[0064] Embodiment 5

[0065] This embodiment is a further implementation manner of Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4. In this embodiment, the soundbar 10 further includes at least two telescopic members. One end of each telescopic member is connected to the rotating structure 200, and the other end of each telescopic member is rotatably connected to the cabinet 100. And under normal conditions, the cabinet 100, the telescopic members and the rotating structure 200 are relatively stationary. The telescopic members drive the cabinet 100 to rotate synchronously around the axis of the rotating structure 200 under the action of an external force, and the cabinet 100 rotates around the other end of the telescopic member under the action of an external force.

[0066] Specifically, the telescopic member can be, but is not limited to, a telescopic rod. The cabinet 100 is connected to the rotating structure 200 through the telescopic member, and the way of connecting one end of the telescopic member to the rotating structure 200 refers to the way of connecting the cabinet 100 to the rotating structure 200 in the above-mentioned embodiment. The way of connecting the other end of the telescopic member to the cabinet 100 can be, but is not limited to, a tight connection, that is, each cabinet 100 can rotate around the other end of the telescopic member when a certain thrust is applied, and is stably stationary under the action of friction without external force. In this way, the cabinet 100 and the telescopic member, and the telescopic member and the rotating structure 200 are relatively stationary under normal conditions; when in use, a thrust can be applied to the telescopic member to make the cabinet 100 and the telescopic member rotate synchronously around the axis of the rotating structure 200; when further adjusting the sound effect is needed, the telescopic member is pulled to make the telescopic member extend, and the cabinet 100 has a displacement in the radial direction. Then, a thrust is given to the cabinet 100. At this time, the cabinet 100 can rotate around the other end of the telescopic member. In this way, the adjustable range of the soundbar 10 is wider and the audio-visual effect is richer.

[0067] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0068] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0069] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0070] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0071] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and variations based on the above content. Therefore, all such substitutions, improvements, and variations are included within the spirit and scope of the appended claims.

Claims

1. An echo wall speaker, characterized in that, Including: At least two boxes (100) and a rotating structure (200); Each of the boxes (100) is connected to the rotating structure (200), and each of the boxes (100) rotates around the axis of the rotating structure (200) and stops when reaching the required position; In each of the boxes (100), a mid-high frequency unit (110) and a bass unit (120) are arranged at intervals.

2. The whispering gallery speaker according to claim 1, characterized in that The number of the boxes (100) is set to two, the mid-high frequency unit (110) is set as a mid-high frequency speaker, and the bass unit (120) is set as a bass diaphragm.

3. The whispering gallery speaker according to claim 2, wherein Rotating sleeves (130) are respectively arranged on the two boxes (100), the rotating structure (200) is set as a central ring (210), a snap ring (211) is sleeved on one end of the central ring (210), and the snap ring (211) is rotatably connected to the central ring (210). One of the rotating sleeves (130) is connected to the snap ring (211) to be rotatably connected to the central ring (210), and the other rotating sleeve (130) is connected to the other end of the central ring (210) to close or unfold the two boxes (100) around the axis of the central ring (210).

4. The whispering gallery speaker according to claim 3, wherein A toothed portion (212) is arranged on one end of the central ring (210), and the snap ring (211) is elastically abutted against the toothed portion (212).

5. The whispering gallery speaker according to claim 4, wherein, The toothed portion (212) is set to be multiple, and the multiple toothed portions (212) are arranged at intervals of each other.

6. The whispering gallery speaker according to claim 3, characterized in that, A limiting portion (213) for limiting the snap ring (211) to break away from the central ring (210) is arranged on one end of the central ring (210).

7. The whispering gallery speaker according to any one of claims 1 to 6, characterized in that, In each of the boxes (100): the bass unit (120) is set to be at least two.

8. The soundbar speaker according to any one of claims 1 to 6, characterized in that It further includes a driver, and the output end of the driver is connected to each of the boxes (100) to drive each of the boxes (100) to rotate.

9. The soundbar speaker according to any one of claims 1 to 6, characterized in that, A power supply is externally arranged on the box (100), and the power supply is electrically connected to each of the boxes (100).

10. The whispering gallery speaker according to claim 9, characterized in that, It further includes at least two telescopic members. One end of each telescopic member is connected to the rotating structure (200), and the other end of each telescopic member is rotatably connected to the box (100). Normally, the box (100), the telescopic member and the rotating structure (200) are relatively stationary. The telescopic member drives the box (100) to rotate synchronously around the axis of the rotating structure (200) under the action of an external force, and the box (100) rotates around the other end of the telescopic member under the action of an external force.

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