A mobile frameless whiteboard
By combining an open ring and a fixed support base with a telescopic tube and adjustment components, the problems of large footprint, difficult operation, and non-adjustable angle of the whiteboard bracket are solved, making it easy to assemble and adjustable at multiple angles, thus improving the user experience and the scope of application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN AOXING AUDIO & VISUAL EQUIP CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-10
AI Technical Summary
Existing whiteboard stands are bulky, difficult to operate, complex to assemble, and have non-adjustable angles, resulting in poor user experience and limited applicability.
An open ring and a fixed frame are used as support bases. The whiteboard body is supported by a telescopic tube composed of a first support tube and a second support tube. The height and angle can be adjusted by an adjustment component, which includes a combination of structures such as a conical sleeve, a limiting cover, a conical tube, a first support tube, a second support tube, and an adjustment component.
It achieves easy assembly, small footprint, and multi-angle adjustment of the whiteboard, improving user experience and applicability.
Smart Images

Figure CN224474215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of teaching tools technology, and in particular to a mobile frameless whiteboard. Background Technology
[0002] A whiteboard is a tool with writing and display functions, used as a writing board and display board, and is commonly used in teaching, meeting minutes, and business promotion. Existing whiteboards have the following drawbacks: 1. Existing whiteboards are generally supported by height-adjustable H-shaped stands or tripods. These two types of stands occupy a large area, and because they require multiple locking screws to secure the height, adjusting the height by a single person is difficult. Furthermore, these stands have a complex structure with many parts, making assembly difficult and resulting in a poor user experience; 2. Existing whiteboards cannot adjust the angle, thus lacking flexibility and limiting their applicability. Utility Model Content
[0003] The purpose of this invention is to provide a mobile frameless whiteboard to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a movable frameless whiteboard, including an open ring, with multiple universal wheels evenly distributed on the lower surface of the open ring, a fixed frame fixedly connected to the open ring, a first mounting hole on the fixed frame, a conical sleeve inserted and fixedly inserted into the first mounting hole, a limit cover fixedly connected to the conical sleeve and disposed at the top of the fixed frame, a conical tube inserted and fixedly inserted into the conical sleeve, a first support tube fixedly connected to the top of the conical tube, a second support tube slidably connected inside the first support tube, an adjustment component installed on the second support tube, and a whiteboard body installed on the adjustment component.
[0005] Preferably, a fixing sleeve is fixedly connected to the first support tube, and a clamp is fixedly connected to the fixing sleeve, and the clamp is sleeved on the second support tube.
[0006] Preferably, a first knob screw is installed at one end of the clamp, and the first knob screw is threadedly connected to the other end of the clamp.
[0007] Preferably, the adjustment assembly includes a first fixing plate, a limiting groove, a rotating shaft, a second fixing plate, a through hole, an adjustment groove, a second knob screw and a nut, a welding bevel is provided on the second support tube, and the second fixing plate is fixedly connected to the welding bevel. The first fixing plate is hinged to the second fixing plate, and the first fixing plate is fixedly connected to the whiteboard body.
[0008] Preferably, a rotating shaft is fixedly connected to the first fixing plate, and a through hole is opened on the second fixing plate at the position corresponding to the rotating shaft. The rotating shaft is sleeved in the through hole, and a nut is threadedly connected to the rotating shaft. The nut is located on one side of the second fixing plate.
[0009] Preferably, the second fixing plate has an adjustment groove, on which a second knob screw is installed. The first fixing plate has multiple limiting grooves evenly distributed, and the second knob screw is threaded into one of the limiting grooves.
[0010] Preferably, a mounting frame is fixedly connected to the whiteboard body, a hook is fixedly connected to the mounting frame, and a shelf is provided at the bottom of the mounting frame, and the shelf is fixedly connected to the whiteboard body.
[0011] The present invention provides a mobile frameless whiteboard, which has the following advantages: The present invention uses an open ring combined with a fixing frame as a support base, and uses a single telescopic tube composed of a first support tube and a second support tube to support the whiteboard body. It has the advantages of small footprint, easy adjustment and easy assembly. By adjusting the whiteboard body, the whiteboard body can be adjusted at multiple angles, so it is more flexible to use, which is conducive to expanding the scope of application and improving the user experience. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0014] Figure 2 for Figure 1 Enlarged view of the structure of region A in the middle;
[0015] Figure 3 This is a schematic diagram of the overall main structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the front sectional view of the conical sleeve of this utility model;
[0017] Figure 5 This is a three-dimensional structural diagram of the second support tube of this utility model;
[0018] Figure 6 This is an exploded view of the three-dimensional structure of the adjustment component of this utility model.
[0019] In the diagram: 1. Open ring; 11. Caster wheel; 12. Fixing bracket; 13. First mounting hole; 14. Conical sleeve; 15. Limiting cover; 16. Conical tube; 17. First support tube; 18. Fixing sleeve; 19. Clamp; 110. First knob screw; 111. Second support tube; 112. Welding bevel; 2. Adjustment assembly; 21. First fixing plate; 22. Limiting groove; 23. Rotating shaft; 24. Second fixing plate; 25. Through hole; 26. Adjustment groove; 27. Second knob screw; 28. Nut; 3. Whiteboard body; 31. Mounting bracket; 32. Hook; 33. Shelf. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] Please see the appendix Figure 1 -Appendix Figure 6This utility model provides an embodiment of a movable frameless whiteboard, comprising an open ring 1, with multiple casters 11 evenly distributed on the lower surface of the open ring 1, a fixed frame 12 fixedly connected to the open ring 1, a first mounting hole 13 on the fixed frame 12, a conical sleeve 14 inserted and fixedly connected to the first mounting hole 13, a limit cover 15 fixedly connected to the conical sleeve 14 and disposed at the top of the fixed frame 12, a conical tube 16 inserted and fixedly connected to the conical sleeve 14, a first support tube 17 fixedly connected to the top of the conical tube 16, a second support tube 111 slidably connected to the first support tube 17, an adjustment component 2 installed on the second support tube 111, and a whiteboard body 3 installed on the adjustment component 2. The wheel 11 facilitates the movement of the open ring 1. The open ring 1 and the fixed frame 12 serve as a support base to support the first support tube 17. The first support tube 17 and the second support tube 111 form a telescopic tube to support the adjustment component 2. The adjustment component 2 is used to install the whiteboard body 3, which is used for writing and display. The conical sleeve 14 and the limiting cover 15 are an integral structure. The conical sleeve 14 is used to limit the conical tube 16, and the limiting cover 15 is used to limit the conical sleeve 14 and also to improve stability. The conical tube 16 and the first support tube 17 are an integral structure. A fixed sleeve 18 is fixedly connected to the first support tube 17, and a clamp 19 is fixedly connected to the fixed sleeve 18. The clamp 19 is sleeved on the first support tube 17. On the second support tube 111, the fixing sleeve 18 and the clamp 19 are an integral structure, used to connect the first support tube 17 and the second support tube 111; one end of the clamp 19 is equipped with a first knob screw 110, and the first knob screw 110 is threaded to the other end of the clamp 19, the first knob screw 110 is used to lock the clamp 19; the adjusting assembly 2 includes a first fixing plate 21, a limiting groove 22, a rotating shaft 23, a second fixing plate 24, a through hole 25, an adjusting groove 26, a second knob screw 27 and a nut 28, a welding bevel 112 is provided on the second support tube 111, and the second fixing plate 24 is fixedly connected to the welding bevel 112, the first fixing plate 21 is hinged to the second fixing plate 24, and the first... A fixing plate 21 is fixedly connected to the whiteboard body 3. A welding bevel 112 is used to facilitate the welding and fixing of the second support tube 111 to the second fixing plate 24. The second fixing plate 24 is used to install the first fixing plate 21, and the first fixing plate 21 is used to install the whiteboard body 3. A rotating shaft 23 is fixedly connected to the first fixing plate 21. A through hole 25 is opened on the second fixing plate 24 at the position corresponding to the rotating shaft 23, and the rotating shaft 23 is sleeved in the through hole 25. A nut 28 is threadedly connected to the rotating shaft 23, and the nut 28 is set on one side of the second fixing plate 24. The rotating shaft 23 cooperates with the through hole 25 to realize the hinge of the first fixing plate 21 and the second fixing plate 24. The nut 28 is used to limit the second fixing plate 24.The second fixing plate 24 has an adjustment groove 26, on which a second knob screw 27 is installed. The first fixing plate 21 has multiple limiting grooves 22 evenly distributed on it, and the second knob screw 27 is threaded into one of the limiting grooves 22. The adjustment groove 26 is used to accommodate the second knob screw 27, and the limiting groove 22 is used to install the second knob screw 27. A mounting bracket 31 is fixedly connected to the whiteboard body 3, and a hook 32 is fixedly connected to the mounting bracket 31. A shelf 33 is provided at the bottom of the mounting bracket 31 and is fixedly connected to the whiteboard body 3. The mounting bracket 31 is used to install the hook 32, and the hook 32 and shelf 33 are used to place items.
[0022] Working principle: When using this utility model, pass the rotating shaft 23 on the first fixing plate 21 through the through hole 25, tighten the nut 28 on the rotating shaft 23, pass the second knob screw 27 through the adjusting groove 26 and tighten it in the limiting groove 22, install the universal wheel 11 on the open ring 1, press the conical sleeve 14 into the first mounting hole 13, then insert the conical tube 16 on the first support tube 17 into the conical sleeve 14, and finally install the mounting bracket 31 and the shelf 33 on the whiteboard body 3 to complete the assembly; when the height of the whiteboard body 3 needs to be adjusted, loosen the first knob screw 110, slide the second support tube 111 along the first support tube 17 to adjust the second support tube 111 to the required height, and then tighten the first knob screw 110 so that the clamp 19 locks the second support tube 111; when the angle of the whiteboard body 3 needs to be adjusted, Loosen the second knob screw 27, adjust its position in the adjustment groove 26, and then tighten the second knob screw 27. The conical sleeve 14 and the limiting cover 15 are an integral structure. The conical sleeve 14 is used to limit the conical tube 16, and the limiting cover 15 is used to limit the conical sleeve 14 and also to improve stability. The mounting bracket 31 is used to install the hook 32. The hook 32 and the shelf 33 are used to place items. The conical tube 16 and the first support tube 17 are an integral structure. The fixing sleeve 18 and the clamp 19 are an integral structure. The second support tube 111 and the second fixing plate 24 are pre-welded through the welding bevel 112. The open ring 1 and the fixing bracket 12 are pre-welded. The first fixing plate 21 is pre-installed on the whiteboard body 3. The fixing sleeve 18 is pre-installed on the first support tube 17, and the second support tube 111 is pre-installed inside the first support tube 17.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A movable frameless whiteboard, comprising an open circular ring (1), characterized in that: The lower surface of the open ring (1) is evenly distributed with multiple casters (11). A fixed frame (12) is fixedly connected to the open ring (1). A first mounting hole (13) is opened on the fixed frame (12). A conical sleeve (14) is inserted and fixed in the first mounting hole (13). A limit cover (15) is fixedly connected to the conical sleeve (14), and the limit cover (15) is set at the top of the fixed frame (12). A conical tube (16) is inserted and fixed in the conical sleeve (14). A first support tube (17) is fixedly connected to the top of the conical tube (16). A second support tube (111) is slidably connected in the first support tube (17). An adjustment component (2) is installed on the second support tube (111). A whiteboard body (3) is installed on the adjustment component (2).
2. A mobile frameless whiteboard according to claim 1, characterized in that: A fixing sleeve (18) is fixedly connected to the first support tube (17), and a clamp (19) is fixedly connected to the fixing sleeve (18), and the clamp (19) is sleeved on the second support tube (111).
3. A mobile frameless whiteboard according to claim 2, characterized in that: One end of the clamp (19) is equipped with a first knob screw (110), and the first knob screw (110) is threaded to the other end of the clamp (19).
4. A mobile frameless whiteboard according to claim 1, characterized in that: The adjustment assembly (2) includes a first fixing plate (21), a limiting groove (22), a rotating shaft (23), a second fixing plate (24), a through hole (25), an adjustment groove (26), a second knob screw (27), and a nut (28). A welding inclined surface (112) is provided on the second support tube (111), and the second fixing plate (24) is fixedly connected to the welding inclined surface (112). The first fixing plate (21) is hinged to the second fixing plate (24), and the first fixing plate (21) is fixedly connected to the whiteboard body (3).
5. A mobile frameless whiteboard according to claim 4, characterized in that: A rotating shaft (23) is fixedly connected to the first fixing plate (21). A through hole (25) is provided on the second fixing plate (24) at the position corresponding to the rotating shaft (23). The rotating shaft (23) is sleeved in the through hole (25). A nut (28) is threadedly connected to the rotating shaft (23). The nut (28) is located on one side of the second fixing plate (24).
6. A mobile frameless whiteboard according to claim 4, characterized in that: The second fixing plate (24) has an adjustment groove (26) and a second knob screw (27) is installed on the adjustment groove (26). The first fixing plate (21) has multiple limiting grooves (22) evenly distributed, and the second knob screw (27) is threaded into one of the limiting grooves (22).
7. A mobile frameless whiteboard according to claim 4, characterized in that: A mounting bracket (31) is fixedly connected to the whiteboard body (3), a hook (32) is fixedly connected to the mounting bracket (31), and a shelf (33) is provided at the bottom of the mounting bracket (31), and the shelf (33) is fixedly connected to the whiteboard body (3).