Display stand

Abstract

The embodiment of the present disclosure discloses a display support, comprising a support, a supporting device and a data line, the support comprises a first support and a second support, the first support is telescopically connected to the second support, the first support has a mounting portion for mounting a head-mounted display device and a first wire channel, the supporting device is arranged on the second support, the supporting device is provided with a wire winder, the wire winder has a winding disc, the data line is wound on the winding disc, the data line has a first end portion and a second end portion extending from the winding disc, the first end portion can be used for connecting a terminal, the second end portion can be used for connecting the head-mounted display device through the first wire channel, when the mounting portion moves away from the second support, the winding disc rotates, and the extension length of the second end portion of the data line is greater than the extension length of the first end portion.

Description

Technical Field

[0001] This disclosure relates to the field of display equipment technology, and in particular to a display stand. Background Technology

[0002] To showcase head-mounted displays and provide consumers with hands-on experience, stands or platforms are typically set up in product showrooms to hold them in place. The head-mounted displays are mounted on these stands and connected to mobile devices such as smartphones via data cables to provide display and power. However, when consumers adjust the position of the head-mounted displays, the data cables are constantly pulled, easily becoming tangled and potentially tripping them, thus negatively impacting their experience. Utility Model Content

[0003] This disclosure provides a head-mounted display device.

[0004] To achieve the above objectives, this disclosure provides the following technical solution:

[0005] A display stand includes: a stand, a support device, and a data cable. The stand includes a first stand and a second stand, the first stand being telescopically connected to the second stand. The first stand has a mounting portion for mounting a head-mounted display device and a first cable routing channel. The support device is disposed on the second stand and has a cable winder with a cable reel. The data cable is wound around the cable reel and has a first end and a second end extending from the cable reel. The first end can be used to connect to a terminal, and the second end can be used to connect to the head-mounted display device via the first cable routing channel. When the mounting portion moves away from the second stand, the cable reel rotates, and the extension length of the second end of the data cable is greater than the extension length of the first end.

[0006] The technical solutions of this disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0007] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0008] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0009] Figure 1 This diagram illustrates the structure of the display stand provided in an embodiment of the present disclosure.

[0010] Figure 2 A partial structural schematic diagram of the display stand provided in an embodiment of this disclosure is shown;

[0011] Figure 3 An exploded view of the cable reel of the display bracket provided in an embodiment of this disclosure is shown;

[0012] Figure 4 A side view of the cable reel of the display bracket provided in this embodiment is shown;

[0013] Figure 5 A front view of the cable reel of the display bracket provided in this embodiment is shown;

[0014] Figure 6 A rear view of the cable reel of the display bracket provided in this embodiment is shown;

[0015] Figure 7 A cross-sectional view of the cable reel of the display bracket provided in this embodiment is shown.

[0016] Figure 8 A perspective view of the cable reel of the display stand provided in an embodiment of this disclosure is shown;

[0017] Figure 9 A schematic diagram of the structure of the elastic component of the cable reel of the display bracket provided in an embodiment of the present disclosure is shown.

[0018] Figure 10 This diagram shows a structural schematic of the fixing bracket for the cable reel of the display bracket provided in an embodiment of the present disclosure;

[0019] Figure 11 Another perspective view of the mounting bracket for the cable reel of the display bracket provided in an embodiment of this disclosure is shown;

[0020] Figure 12 This diagram illustrates the cooperative structure of the fixing bracket and the reel of the cable reel in the display bracket provided in an embodiment of this disclosure;

[0021] Figure 13 A schematic diagram showing the structure of a cable reel of a display bracket provided in an embodiment of the present disclosure is provided, in which an elastic component is provided on the cable reel.

[0022] Figure 14 This diagram shows a structural schematic of the front housing of the cable reel of the display bracket provided in an embodiment of the present disclosure;

[0023] Figure 15 This diagram shows a structural schematic of the rear housing of the cable reel of the display bracket provided in an embodiment of the present disclosure;

[0024] Figure 16 A three-dimensional structural schematic diagram of the cable reel of the display bracket provided in an embodiment of this disclosure is shown.

[0025] In the diagram, 1. Head-mounted display device; 2. Terminal; 3. Cable winder; 31. Front shell; 311. Second cable outlet; 32. Elastic component; 321. Internal end; 322. External end; 33. Cable reel; 331. Cable winding groove; 332. Mounting groove; 3321. Snap-fit ​​mating part; 335. Rib; 336. Pressure block mounting hole; 337. First lead-in port; 338. First weight-reducing groove; 339. Second weight-reducing groove. 3310, locking block; 3311, pressing block; 35, fixed bracket; 351, rotating shaft; 352, locking slot; 353, second lead-in port; 354, terminal support part; 36, rear shell; 361, first cable outlet; 4, data cable; 41, first end; 42, second end; 5, bracket; 51, first bracket; 511, mounting part; 52, second bracket; 521, base; 6, support device.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Exemplary Overview

[0031] The head-mounted display device 1 can also be called a head-mounted display (HMD) or head-mounted device. The head-mounted display device 1 can be used to achieve augmented reality (AR), virtual reality (VR), and mixed reality (MR) effects. The head-mounted display device 1 can be presented in the form of glasses, a helmet, etc. The head-mounted display device is mounted on a display stand or exhibition platform and connects to terminal devices such as mobile phones via data cables to achieve its display, power supply, and other functions.

[0032] Exemplary Structure

[0033] Figure 1 A schematic diagram of the structure of the display stand provided in an embodiment of this disclosure is shown. Figure 2 This diagram illustrates a partial structural schematic of the display stand provided in an embodiment of this disclosure. The display stand may include a stand 5, a support device 6, and a data cable 4. The support device 6 is mounted on the stand 5, and a cable winder 3 is mounted on the support device 6. The data cable 4 is wound around the cable winder 3, and its two ends are connected to a terminal 2 and a head-mounted display device 1, respectively. The head-mounted display device 1 may be a device used to achieve AR, VR, MR, or other effects, and may be presented in the form of glasses, a helmet, or other similar devices. The terminal 2 may be a mobile phone, tablet, computer, or other electronic product.

[0034] In some alternative embodiments, the support 5 of the display stand has a first wiring channel, the support 5 is a telescopic structure that can adjust the height, and the two ends of the data cable 4 are respectively connected to the terminal 2 and the head-mounted display device 1, and the data cable 4 extends at least partially along the first wiring channel inside the support 5.

[0035] In some alternative embodiments, the head-mounted display device 1 is positioned at or near the top of the bracket 5. During the adjustment of the height of the bracket 5, the cable winder 3 keeps the data cable 4 taut, ensuring that the data cable 4 maintains a certain tension and extends to an appropriate length within the first cable routing channel inside the bracket 5, preventing curling or kinking that could affect the height adjustment of the display bracket.

[0036] In some alternative implementations, such as Figure 1 As shown, the display bracket includes a first bracket 51 and a second bracket 52. The first bracket 51 is telescopically connected to the second bracket 52. The first bracket 51 is located on top of the second bracket 52. The first bracket 51 has a mounting portion 511 for mounting the head-mounted display device 1 and a first wiring channel.

[0037] The mounting section 511 may include a bent section disposed at the top of the first bracket 51. A fixing structure for fixing the head-mounted display device 1 is disposed on the bent section, which can stably fix the head-mounted display device 1 on the bent section. The first bracket 51 can move and be fixed along the height direction of the second bracket 52 to adjust the height of the mounting section 511. Consumers do not need to wear the head-mounted display device. After adjusting the height of the head-mounted display device, they can experience it by placing their body close to the head-mounted display device.

[0038] In an optional example, combined Figure 1 and Figure 2 As shown, the support device 6 can be installed on the second bracket 52. The support device 6 is equipped with a cable winder 3. When the height of the bracket 5 is adjusted, the position of the support device 6 is fixed.

[0039] In an optional example, the base 521 at the bottom of the second bracket 52 can be stably supported on the ground.

[0040] In an optional example, a second cable routing channel can be provided within the second bracket 52. The second cable routing channel is connected to the first cable routing channel. After the data cable extends out of the cable reel 3, it extends sequentially through the second cable routing channel and the first cable routing channel before extending out of the first bracket 51 to connect to the head-mounted display device 1.

[0041] Figure 3 An exploded view of a cable reel for a display stand provided in some embodiments of this disclosure is shown. (In conjunction with...) Figures 1 to 3 As shown, the cable reel 3 has a cable reel 33, and the data cable 4 is wound on the cable reel 33. The data cable 4 has a first end 41 and a second end 42 extending from the cable reel 33. The first end 41 can be used to connect to the terminal 2, and the second end 42 can be used to connect to the head-mounted display device 1 through the first cable routing channel. The second end 42 can be inserted into the second cable routing channel and the first cable routing channel.

[0042] As the mounting section 511 moves away from the second bracket 52, the cable reel 33 rotates, and the extension length of the second end 42 of the data cable 4 is greater than the extension length of the first end 41. When adjusting the height of the bracket 5, the second end 42 will adaptively extend with the change in the height of the bracket 5, while the length of the first end 41 will change very little or not at all. The first end 41 can maintain an effective connection with the terminal 2 and will not pull the terminal 2 due to the length change, causing the first end 41 to detach from the terminal 2 and resulting in data connection failure.

[0043] Figure 4 This illustration shows a side view of the cable reel of the display bracket provided in an embodiment of the present disclosure. Figure 5 The image shows a front view of the cable reel of the display bracket provided in an embodiment of this disclosure. Figure 6The image shows a rear view of the cable reel of the display bracket provided in an embodiment of this disclosure. Figure 7 A cross-sectional view of the cable reel of the display bracket provided in this embodiment is shown. The cable reel 33 has a cable groove 331 and a first lead-in port 337 communicating with the cable groove 331. A data cable 4 is wound around the cable groove 331. A first end 41 of the data cable 4 extends out of the cable groove 331 from the first lead-in port 337, and a second end 42 of the data cable 4 extends out of the opening of the cable groove 331. When the cable reel 33 is rotating, the second end 42 is wound around or unwound from the cable groove 331, while the length of the first end 41 is fixed. The first lead-in port 337 can extend along the rotation axis of the cable reel 33, and the first lead-in port 337 is as close as possible to the rotation axis of the cable reel 33.

[0044] When adjusting the height of the first bracket 51, the reel 33 begins to rotate under the traction of the second end 42. Because the first lead port 337 is close to the rotation axis of the reel 33, the end of the first end 41 that is close to the reel 33 will not have a large displacement change relative to the terminal 2, and will not affect the connection between the first end 41 and the terminal 2.

[0045] Figure 8 This is a perspective view of the cable reel of the display stand provided in an embodiment of the present disclosure. The cable reel 3 includes a fixing component detachably connected to the cable reel 33. The fixing component fixes the first end 41 of the data cable 4 so that even if the cable reel 33 rotates, the length of the first end 41 of the data cable 4 will not change, and the first end 41 of the data cable 4 and the terminal 2 are effectively and reliably connected.

[0046] In an optional example, combined Figures 6 to 8 As shown, the fixing component includes a pressure block 3311. A pressure block mounting hole 336 is provided on the cable reel 33. Fasteners pass through the pressure block 3311 and are connected to the pressure block mounting hole 336. The pressure block 3311 and the cable reel 33 cooperate to clamp and fix the first end of the data cable 4 near the side of the cable reel 33. The fixing component may also include a locking block 3310, which is fixedly connected to the cable reel 33. The locking block 3310 has a notch through which the first end 41 of the data cable 4 passes. The locking block 3310 clamps and fixes the first end 41 of the data cable 1 through the notch. The locking block 3310 can be detachably fixed to the cable reel or integrally formed with the cable reel.

[0047] Figure 10 A schematic diagram of the structure of the fixing bracket of the cable reel provided in the embodiment of this disclosure is shown. Figure 11 This is another perspective view showing the mounting bracket of the cable reel provided in an embodiment of the present disclosure. Figure 16This diagram illustrates a perspective view of the cable reel of the display bracket provided in this embodiment. The cable reel 3 has a housing with a cavity, a rotating shaft 351, a first cable outlet 361, and a second cable outlet 311. Both the first and second cable outlets 361 and 311 communicate with the cavity. The rotating shaft 351 is located within the cavity, and a cable reel 33 is located within the cavity and rotatably mounted on the rotating shaft 351. A first end 41 extends out of the housing from the first cable outlet 361, and a second end 42 of the data cable 4 extends out of the housing from the second cable outlet 311. The housing can be mounted on the support device 66 of the bracket 5.

[0048] Figure 12 This diagram illustrates the mating structure of the mounting bracket and reel of the cable reel in the display stand provided in an embodiment of this disclosure. (In conjunction with...) Figure 3 , Figure 7 and Figure 12 As shown, the cable reel 3 has an elastic component 32, which can be located within the cavity. The elastic component 32 is respectively positioned and engaged with the rotating shaft 351 and the cable reel 33. The elastic component 32 provides a rebound force to the cable reel 33. When the first bracket 51 is pulled upward, the second end 42 of the data cable 4 will pull the cable reel 33, causing the cable reel 33 to rotate. The elastic component 32 applies a reverse elastic force to the second end 4. Under the action of the elastic force of the elastic component 32, the second end 42 of the data cable 4 will be in a taut state, and there will be no curling or interference.

[0049] Figure 9 This diagram illustrates the structure of the elastic component of the cable reel in the display bracket provided in an embodiment of the present disclosure. Figure 13 This diagram illustrates a structure in which an elastic member is provided on the reel of a cable winder for a display bracket according to an embodiment of the present disclosure. (In conjunction with...) Figure 5 , Figure 7 , Figure 9 , Figure 10 and Figure 13 As shown. A mounting groove 332 is provided on one side of the winding reel 33, and a snap-fit ​​part 3321 is provided in the mounting groove 332. The rotating shaft 351 has a slot 352. The elastic member 32 is located in the mounting groove 332. One end of the elastic member 32, such as the inner end 321, is snapped into the slot 352, and the other end of the elastic member 32, such as the outer end 322, is snapped into the snap-fit ​​part 3321.

[0050] The elastic component 32 can be a coil spring, which extends multiple turns around the circumference of the rotating shaft 351. One end of the coil spring passes through the slot 352 at the end of the rotating shaft 351, and the other end of the coil spring is provided with a hook. The engaging part 3321 can be a protrusion provided on the bottom wall of the mounting groove 332, and the hook can be hooked onto the protrusion. During the rotation of the cable reel 33 under the traction of the data cable, the housing position is fixed, the coil spring will deform, and apply a reverse elastic force to the cable reel 33, so that the second end 42 remains taut.

[0051] Figure 14 This diagram shows a structural schematic of the front housing of the cable reel of the display bracket provided in an embodiment of the present disclosure. Figure 15 This diagram shows a structural schematic of the rear housing of the cable reel of the display bracket provided in an embodiment of the present disclosure. Figure 16 This diagram illustrates a three-dimensional structural schematic of the cable reel of the display stand provided in an embodiment of this disclosure. (In conjunction with...) Figure 3 , Figure 14 , Figure 15 and Figure 16 As shown, the housing includes a front shell 31, a rear shell 36, and a fixing bracket 35. The front shell 31 and the rear shell 36 are located on both sides of the fixing bracket 35, forming a cavity between the fixing bracket 35 and the front shell 31. The fixing bracket 35 has a pivot 351 and a second lead port 353 communicating with the cavity. A second outlet 311 is formed between the front shell 31 and the fixing bracket 35, and a first outlet 361 is formed between the rear shell 36 and the fixing bracket 35. The first end 41 of the data cable 4 passes through the second lead port 353 and the first outlet 361 in sequence and extends out of the housing. The fixing bracket 35 is located in the middle, and the front shell 31 and the rear shell 36 are located on both sides of the fixing bracket 35. The fixing bracket 35, the front shell 31, and the rear shell 36 can be glued together or connected and fixed by fasteners.

[0052] Combination Figure 11 and Figure 16 As shown, the fixed bracket 35 has a terminal support portion 354, which is exposed between the front shell 31 and the rear shell 36. The terminal support portion can be used to support and place the terminal 2. Taking the terminal 2 as a mobile phone as an example, the terminal support portion 354 can be a flat plate, which can easily place the mobile phone flat on the upper surface of the flat plate. By setting the terminal support portion 354 on the fixed bracket 35, the terminal 2 and the winding coil 33 are closer together. During the rotation of the winding coil 33, the first end 41 of the data cable near the winding coil will move slightly. However, the length of the first end 41 is sufficient and will not cause the first end 41 to be tense. The slight movement of the first end 41 at the end of the winding coil 33 with the rotation of the winding coil will not affect the connection between the first end 41 and the terminal 2.

[0053] The fixed bracket 35 has a bracket body and a terminal support 354 located at the end of the bracket body, with the terminal support 354 vertically connected to the bracket body. The fixed bracket 35 is approximately "7"-shaped, with a front shell 31 and a rear shell 36 located on both sides of the bracket body along its thickness direction. The bracket body is provided with a pivot 351 and a second lead-in port 353. The terminal support 354 can be a horizontal plate covering the top of the fixed bracket 35 and the front shell 31, allowing for easy placement of the terminal 2. A fixing structure can be provided on the terminal support 354 to fix the terminal 2 placed on it and prevent the terminal 2 from falling.

[0054] In an optional example, such as Figure 7 As shown, the cable reel 33 has raised ribs 335 on both sides along its rotation axis. The raised ribs 335 extend around the rotation axis of the cable reel 33, and both sides of the raised ribs 335 contact the inner wall of the cable winder 3 housing. The contact between the raised ribs 335 and the inner wall of the housing generates sliding friction between the cable reel 33 and the housing during rotation. The housing then hinders the rotation of the cable reel 33, which helps to tighten the second end 42 of the data cable and prevents the second end 42 from curling and interfering with the height adjustment of the bracket 5. The outer surface of the raised ribs 335 has a smooth transition, making it less prone to scratches against the inner wall of the housing.

[0055] In an optional example, the rib 335 can be a closed annular rib or a semi-circular structure. When the rib 335 is a semi-circular structure, both ends of the rib 335 can be set as smooth transition surfaces to avoid scratches between the ends of the rib 335 and the inner wall of the housing during the rotation of the coil 33. The rib 335 on one side of the coil 33 contacts the inner wall of the front housing 31, and the rib 335 on the other side of the coil 33 contacts the surface of the fixing bracket 35.

[0056] In an optional example, combine Figure 4 , Figure 7 and Figure 8 As shown, a weight-reducing groove can be provided on the winding reel 33 to reduce the weight of the winding reel 33 and reduce the cost.

[0057] In an optional example, a first weight-reducing groove 338 may be provided on the reel 33. The first weight-reducing groove 338 extends circumferentially along the reel 33, and the opening of the first weight-reducing groove 338 is located on the thickness end face of the reel 33, without affecting the structural arrangement of the two sides of the reel 33 along the thickness direction. The first weight-reducing groove 338 can be an annular closed groove, or a semi-annular or more than a semi-annular structure groove. When the first weight-reducing groove 338 is a semi-annular or more than a semi-annular structure groove, the design of the first weight-reducing groove 338 will not significantly reduce the structural strength of the reel 33, and will not affect the quality and durability of the reel 33. In an optional example, such as Figure 5As shown, a second weight-reducing groove 339 can also be provided on the winding reel 33. The second weight-reducing groove 339 extends radially along the winding reel 33 and extends along the thickness direction of the winding reel 33. The provision of the second weight-reducing groove 339 reduces the weight of the winding reel 33 and reduces material costs.

[0058] In an optional example, such as Figure 5 As shown, the rib 335 on one side of the reel 33 has a semi-circular structure, and the second weight-reducing groove 339 is located in the disconnected area formed between the two ends of the rib 335. The second weight-reducing groove 339 can connect to the first weight-reducing groove 338. Alternatively, the first weight-reducing groove 338 is a semi-circular structure, and the second weight-reducing groove 339 is located in the middle of the disconnected area between the two ends of the first weight-reducing groove 338. It should be noted that although the reel 33 has a first weight-reducing groove 338 and a second weight-reducing groove 339, the positions of the first weight-reducing groove 338 and the second weight-reducing groove 339 make the reel 33 a structure with a roughly symmetrical mass distribution, and the plane of symmetry of the reel 33 passes through the second weight-reducing groove 339.

[0059] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A display stand, characterized in that, include: The bracket includes a first bracket and a second bracket, the first bracket being telescopically connected to the second bracket, and the first bracket having a mounting portion for mounting a head-mounted display device and a first wiring channel; A support device is provided on the second bracket, and a cable winder is provided on the support device, the cable winder having a cable reel; A data cable is wound on the reel and has a first end and a second end extending from the reel. The first end can be used to connect to a terminal, and the second end can be used to connect to a head-mounted display device through the first cable routing channel. When the mounting part moves away from the second bracket, the cable reel rotates, and the extension length of the second end of the data cable is greater than the extension length of the first end.

2. The display stand according to claim 1, wherein, The reel has a winding groove and a first lead-in port communicating with the winding groove; The data cable is wound around the winding groove, the first end of the data cable extends out of the winding groove from the first lead-in port, and the second end of the data cable extends out of the winding groove from the opening of the winding groove. While the reel is rotating, the second end is wound around or detached from the winding groove, and the length of the first end is fixed.

3. The display stand according to claim 1, wherein, The reel includes a fixing component; The fixing component is detachably connected to the cable reel, and the fixing component fixes the first end of the data cable.

4. The display stand according to claim 1, wherein, The cable reel has a housing and an elastic component. The housing has a cavity, a rotating shaft, a first cable outlet, and a second cable outlet. Both the first and second cable outlets are connected to the cavity. The rotating shaft is located inside the cavity. The reel is located inside the cavity and is rotatably sleeved on the shaft; The elastic component is respectively positioned and engaged with the rotating shaft and the winding reel; The first end extends out of the housing from the first outlet, and the second end of the data cable extends out of the housing from the second outlet.

5. The display stand according to claim 4, wherein, The winding reel has a mounting groove on one side, and a snap-fit ​​part is provided in the mounting groove; The rotating shaft has a slot; The elastic component is located in the mounting groove, one end of the elastic component is engaged in the groove, and the other end of the elastic component is engaged in the engaging mating part.

6. The display stand according to claim 4, wherein, The housing includes a front housing, a rear housing, and a fixing bracket; The front and rear shells are located on both sides of the fixed bracket; The cavity is formed between the fixed bracket and the front shell, and the fixed bracket has the rotating shaft; The fixed bracket has a second lead port communicating with the cavity, a second outlet is formed between the front shell and the fixed bracket, and a first outlet is formed between the rear shell and the fixed bracket; The first end of the data cable passes through the second lead port and the first outlet port in sequence and extends out of the housing.

7. The display stand according to claim 6, wherein, The fixed bracket has a terminal support portion, which is exposed between the front shell and the rear shell.

8. The display stand according to claim 1, wherein, The winding reel is provided with raised ribs on both sides along the axis of rotation, and the raised ribs extend around the axis of rotation of the winding reel. The ribs on both sides of the winding reel are in contact with the inner wall of the winding device's housing.

9. The display stand according to claim 1, wherein, The winding spool is provided with a first weight reduction groove, which extends circumferentially along the winding spool, and the opening of the first weight reduction groove is located on the thickness end face of the winding spool.

10. The display stand according to claim 1, wherein, The winding spool is provided with a second weight-reducing groove, which extends radially along the winding spool and extends along the thickness direction of the winding spool.

Images