Square sound equipment with multidirectional wheel sets
Through multi-directional wheel sets and various stable structural designs, the problems of inconvenience in moving and placing traditional plaza speakers have been solved, achieving flexible movement and stable transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional plaza speakers use fixed bases or simple caster designs, which are inconvenient to move and easy to tip over. They also lack additional storage functions, increasing the burden of use.
It adopts a multi-directional wheel assembly, a metal placement plate that can be adsorbed, a sliding frame and locking device, a lifting frame and adsorption device, combined with omnidirectional wheels and a flexible structure to achieve stable movement and placement functions.
It enables flexible movement and stable transportation of audio equipment, enhances the stability of the storage platform, prevents items from slipping, and improves operational safety.
Smart Images

Figure CN223978714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of audio equipment, and in particular to a plaza audio system with multi-directional wheels. Background Technology
[0002] Plaza speakers are commonly used amplification equipment for outdoor performances, gatherings, square dancing, and other activities. Their portability and stability directly affect the user experience. Traditional plaza speakers usually use a fixed base or a simple caster design, which requires multiple people to carry or push when moving them, making them inconvenient to operate. They are also prone to tipping over on uneven ground. In addition, most speakers lack additional storage functions, requiring users to carry extra stands or tables to place playback devices, water cups, and other items, increasing the burden of use. Although some existing speakers have folding stands or casters, their structures are simple and lack effective locking and stabilizing mechanisms. When moving them, vibrations can easily cause the stands to unfold unexpectedly or items to slip off.
[0003] Therefore, in order to address the above problems, a plaza sound system with multi-directional wheels is now being developed. Utility Model Content
[0004] To overcome the shortcomings of existing devices that typically use fixed bases or simple roller designs, which require multiple people to carry or push when moving, are inconvenient to operate, and are prone to tipping over on uneven ground, and most speakers lack additional storage functions, requiring users to carry extra stands or tables to place playback devices, water cups, and other items, increasing the burden of use, this utility model provides a plaza speaker with multi-directional wheels.
[0005] The technical solution of this utility model is: a square speaker with multi-directional wheels, including a speaker body, four universal wheels rotatably connected to the bottom of the speaker body, a pull groove on the upper right side of the speaker body, and placement plates rotatably connected to the front and rear sides of the speaker body. The placement plates are used to support and place items, and the placement plates are all made of absorbent metal. A sliding frame is slidably connected to the right side of the speaker body, and the upper part of the sliding frame has a handle. The upper part of the sliding frame is slidably connected to the pull groove, and the sliding frame can lock and fix the placement plate. Two elastic plates are connected between the sliding frame and the speaker body.
[0006] Furthermore, it also includes a locking component, with the locking component slidably connected to both the left and right sides of the placement plate. The locking component is used to limit the placement plate after it is opened.
[0007] Furthermore, it also includes a lifting frame, which is slidably connected to the lower sides of both the front and rear of the speaker body. The top of the lifting frame has an arc-shaped structure and is used to support the placement plate after it is opened. Springs are connected between the lifting frame and the speaker body.
[0008] Furthermore, it also includes adsorption components, which are connected to both the front and rear sides of the speaker body. These adsorption components are used to adsorb and stabilize the placement plate.
[0009] Furthermore, the pull groove is equipped with an arc-shaped protective structure to prevent operator hand injuries.
[0010] Furthermore, both the front and rear sides of the bottom of the sliding frame have an L-shaped structure.
[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows:
[0012] This utility model achieves flexible movement through a set of universal wheels, and ensures stability and no shaking during transportation by using a sliding frame and elastic plate in conjunction with a locking placement plate. The placement plate can be unfolded to serve as a storage platform, and stability is enhanced by locking components, a lifting frame, and suction components to prevent items from slipping. Furthermore, the arc-shaped protective structure of the pull groove improves operational safety during use. Attached Figure Description
[0013] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.
[0015] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention.
[0016] Figure 4 This is a partial three-dimensional structural diagram of the present invention.
[0017] Figure 5 This is a partial cross-sectional structural diagram of the present invention.
[0018] Figure 6 This is a three-dimensional structural diagram of another state of the present invention.
[0019] In the attached diagrams: 1: Speaker body, 2: Casters, 3: Pulling groove, 4: Placement plate, 5: Sliding bracket, 6: Elastic sheet, 7: Locking element, 8: Lifting bracket, 9: Spring, 10: Adsorption element. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] A type of plaza sound system with multi-directional wheels, such as Figure 1-6 As shown, the device includes a speaker body 1. Four casters 2 are rotatably connected to the bottom of the speaker body 1. A pull groove 3 is located on the upper right side of the speaker body 1, and an arc-shaped protective structure is installed inside the pull groove 3 to prevent hand injury to the operator. Placement plates 4 are rotatably connected to the front and rear sides of the speaker body 1 for supporting and placing items. The placement plates 4 are made of absorbent metal. A sliding frame 5 is slidably connected to the right side of the speaker body 1. The sliding frame 5 has a handle on its upper part and is slidably connected to the pull groove 3. The bottom of the sliding frame 5 has an L-shaped structure on both the front and rear sides. The placement plate 4 can be locked and fixed. Two elastic pieces 6 are connected between the sliding frame 5 and the speaker body 1. Locking parts 7 are slidably connected to both the left and right sides of the placement plate 4. The locking parts 7 are used to limit the placement plate 4 after it is opened. Lifting frames 8 are slidably connected to the lower sides of both the front and rear sides of the speaker body 1. The top of the lifting frame 8 has an arc surface structure. The top of the lifting frame 8 is used to support the placement plate 4 after it is opened. Springs 9 are connected between the lifting frame 8 and the speaker body 1. Adsorption parts 10 are connected to both the front and rear sides of the speaker body 1. Adsorption parts 10 are used to adsorb and stabilize the placement plate 4.
[0022] It should be noted that when this device is moved, the operator can reach into the pull groove 3 and pull the sliding frame 5 upwards, causing the elastic plates 6 to be compressed. At the same time, the sliding frame 5 moves upwards, locking and fixing the placement plates 4 on both sides. This, together with the suction component 10, keeps the placement plates 4 stable and prevents the placement plates 4 from accidentally flipping open due to bumps during the movement of the speaker body 1. When the speaker body 1 moves to the appropriate position, the sliding frame 5 is released. At this time, under the action of the elastic plate 6, the sliding frame 5 will automatically return to its original position downwards, thereby unlocking the placement plates 4. Then, the operator pulls the placement plates 4 downwards, causing the placement plates 4 to flip downwards by 90 degrees and push the locking components 7 to both sides to open, so that the locking components 7 lock and fix the placement plates 4. At the same time, the lifting frame 8 and the spring 9 work together to support and stabilize the directly flipped and opened placement plates 4. The operator can place some items that need to be used on the placement plates 4.
[0023] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.
Claims
1. A square sound system with a multi-directional wheel group, characterized by comprising The utility model provides an audio body (1), four universal wheels (2) are rotatably connected at the bottom of the audio body (1), a pulling slot (3) is formed in the upper right side of the audio body (1), placing plates (4) are rotatably connected to the front and back of the audio body (1), the placing plates (4) are used for supporting and placing articles, the placing plates (4) are all adsorbable metal materials, a sliding frame (5) is slidably connected to the right inner portion of the audio body (1), the sliding frame (5) is provided with a handle on the upper portion, the sliding frame (5) is slidably connected with the pulling slot (3) on the upper portion, the sliding frame (5) can lock and fix the placing plates (4), two elastic sheets (6) are connected between the sliding frame (5) and the audio body (1).
2. The square sound system with multi-directional wheel set according to claim 1, characterized in that, The utility model also includes locking pieces (7), the locking pieces (7) are slidably connected to the left and right portions of the placing plates (4), and the locking pieces (7) are used for limiting the opened placing plates (4).
3. The multi-directional wheel set square sound system according to claim 2, wherein, The utility model also includes lifting frames (8), the lifting frames (8) are slidably connected to the lower sides of the front and back of the audio body (1), the top of the lifting frame (8) is an arc surface structure, the top of the lifting frame (8) is used for supporting the opened placing plates (4), and springs (9) are connected between the lifting frame (8) and the audio body (1).
4. The square sound system with multi-directional wheel set according to claim 3, characterized in that, The utility model also includes suction accessories (10), the suction accessories (10) are connected to the front and back of the audio body (1), and the suction accessories (10) are used for adsorbing and stabilizing the placing plates (4).
5. The multi-directional wheel set square sound system according to claim 1, wherein, The pulling slot (3) is provided with an arc protection structure to prevent the hands of the operator from being injured.
6. The multi-directional wheel set square sound system according to claim 1, wherein, The bottom of the sliding frame (5) is an L-shaped structure.