Telescopic stand with high stability

Abstract

The utility model relates to the technical field of telescopic grandstands, in particular to a telescopic grandstand with higher stability, which comprises a plurality of layers of grandstands up and down, a walking mechanism is arranged at the bottom of each layer of grandstand, a lower guide structure is arranged between the walking mechanisms on two adjacent layers of grandstands, and an upper guide structure is arranged between two adjacent layers of grandstands. A plurality of folding seats capable of being hidden at the bottom of the stand located on the adjacent upper layer are installed on each layer of stand, and guide roller sets are arranged at the tops of the rear sides of the folding seats. The whole folding stand is convenient to store, space is saved, space diversification is achieved, the telescopic smoothness is high, the overall telescopic stability is improved, and the folding stand is convenient to use. Meanwhile, the phenomenon that the folding seat is unfolded in the stretching and retracting process to cause stretching and retracting blockage is avoided, and the overall stretching and retracting stability is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of telescopic grandstand technology, specifically a telescopic grandstand with high stability. Background Technology

[0002] Telescopic grandstands are widely used due to their versatility, flexibility, durability, comfort, and environmental friendliness. They are mainly used in concerts, exhibitions, sports events, theaters, and conference halls. A search revealed an improved telescopic grandstand with publication number CN207920165U, comprising a grandstand, a drive mechanism, and a traveling mechanism. This design features a telescopic, stepped structure. A drive mechanism is located beneath the bottom of the grandstand, pulling the grandstand outwards. Simultaneously, the traveling mechanism, acting as a guide for the lower rails of the grandstand, gradually extends them to designated positions. Each upright supports the bottom of the grandstand, providing stable support. Its seats adopt a foldable structure, making its overall design flexible and allowing for easy unfolding and retraction. The grandstand is pulled open via a drive mechanism that works in conjunction with a walking mechanism, making it easy to operate and move. However, its stability is poor during operation; it is prone to jamming during unfolding and movement, and the folding seats can easily cause the overall extension and retraction to become clunky. Therefore, a retractable grandstand with higher overall smoothness of extension and retraction, improved overall stability, and to avoid jamming caused by the unfolding of folding seats during extension and retraction, is designed to further ensure the stability of the overall extension and retraction. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a highly stable telescopic grandstand with smooth overall telescopic movement, improving overall telescopic stability. It also avoids the phenomenon of jamming during telescopic movement caused by unfolding folding seats, further ensuring overall telescopic stability.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a highly stable telescopic grandstand, comprising multiple tiers of grandstands, each tier having a walking mechanism at its bottom, a lower guide structure between the walking mechanisms on adjacent tiers, an upper guide structure between adjacent tiers, and multiple folding seats that can be hidden at the bottom of the adjacent upper tier installed on each tier, with guide rollers provided on the top rear side of each folding seat.

[0007] Preferably, the walking mechanism includes a walking frame fixedly installed at the bottom of the grandstand by a rear upright, and the walking frame is provided with multiple rollers at the front and rear.

[0008] Preferably, the lower guide structure includes a guide bend and a guide clamp with a guide sliding fit, and each set of walking frames is provided with a guide bend and a guide clamp on both the left and right sides respectively.

[0009] Preferably, the upper guide structure includes a guide groove and a guide shaft that slide together, and the guide groove and guide shaft are respectively installed on two adjacent sets of upper and lower grandstands.

[0010] Preferably, a drive mechanism is provided at the bottom of the lowest stand. The drive mechanism includes a drive frame fixedly installed at the bottom of the lowest stand, two sets of drive shafts rotatably connected to the drive frame, drive wheels fixedly installed on both sides of the drive shafts, and a drive motor installed on the drive frame. The output shaft of the drive motor is connected to one of the drive shafts through a transmission assembly, and the two sets of drive shafts are connected through a synchronization assembly.

[0011] Preferably, a rear baffle is fixedly installed on the rear side of each tier of the grandstand.

[0012] Preferably, the width of the multi-tiered stands increases sequentially from bottom to top, and safety railings are installed on both sides of each tier of the stands.

[0013] Preferably, the guide roller assembly includes a plurality of guide rollers mounted in parallel on the top rear side of the folding seat.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a telescopic grandstand with higher stability and has the following beneficial effects:

[0016] This highly stable telescopic grandstand is easy to store, saves space, and allows for space versatility. The lower guide structure improves the guiding stability between the walking mechanisms of adjacent grandstands, while the upper guide structure enhances the stability between upper and lower grandstands. The combination of the lower and upper guide structures improves the overall telescopic stability of the multi-tiered grandstand, preventing jamming during telescopic movement. Guide rollers at the rear top of the folding seats prevent them from unfolding due to bumps and causing jamming during telescopic movement. This highly stable telescopic grandstand offers smooth telescopic movement, improving overall stability and preventing jamming caused by unfolding folding seats, further ensuring overall telescopic stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0020] Figure 4 This is a structural schematic diagram of the present invention from other perspectives;

[0021] Figure 5 This is a schematic diagram of the overall front planar structure of this utility model;

[0022] Figure 6 This utility model Figure 5 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of the lowest level grandstand and drive mechanism of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the grandstand, guide roller, and guide groove of this utility model.

[0025] The following are labels in the attached diagram: 1. Grandstand; 2. Rear bumper; 3. Folding seat; 4. Guide roller; 5. Guide chute; 6. Guide shaft; 7. Walking frame; 8. Roller; 9. Guide bend; 10. Guide clamp; 11. Drive frame; 12. Drive shaft; 13. Drive wheel; 14. Drive motor; 15. Transmission assembly; 16. Synchronization assembly; 17. Safety railing. Detailed Implementation

[0026] 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.

[0027] Example:

[0028] Please see Figure 1-8 A highly stable telescopic grandstand includes multiple tiers of grandstands 1, each tier of grandstand 1 has a walking mechanism at its bottom, a lower guide structure is provided between the walking mechanisms on two adjacent grandstands 1, an upper guide structure is provided between two adjacent grandstands 1, and multiple folding seats 3 that can be hidden at the bottom of the adjacent upper grandstand 1 are installed on each grandstand 1, and a guide roller assembly is provided on the top rear side of each folding seat 3.

[0029] Specifically, the walking mechanism includes a walking frame 7 fixedly installed at the bottom of the grandstand 1 via a rear upright. Multiple rollers 8 are provided on the walking frame 7 at the front and rear. The rear upright and the walking frame 7 facilitate the improvement of the stability of the grandstand 1. The multiple rollers 8 facilitate the improvement of the overall stability. The rear upright also serves as a limit when retracting to the end.

[0030] Specifically, the lower guide structure includes a guide bend 9 and a guide clamp 10 that are guided and slidably engaged. Each set of walking frames 7 is provided with a guide bend 9 and a guide clamp 10 on both the left and right sides. Furthermore, the bottom of the lowest grandstand 1 is fixedly installed with a guide bend 9 and a guide clamp 10 that are guided and slidably engaged on the walking frame 7 on the lower side of the adjacent grandstand 1. The cooperation between the guide bend 9 and the guide clamp 10 improves the overall telescopic stability.

[0031] Specifically, the upper guide structure includes a guide groove 5 and a guide shaft 6 that are in a sliding fit. The guide groove 5 and the guide shaft 6 are respectively installed on the two adjacent upper and lower grandstands 1. Through the cooperation of the guide groove 5 and the guide shaft 6, the guiding stability between adjacent grandstands 1 can be improved.

[0032] Specifically, a drive mechanism is provided at the bottom of the lowest stand 1. The drive mechanism includes a drive frame 11 fixedly installed at the bottom of the lowest stand 1. Two sets of drive shafts 12 are rotatably connected to the drive frame 11. Drive wheels 13 are fixedly installed on both sides of the drive shafts 12. The mechanism also includes a drive motor 14 mounted on the drive frame 11. The output shaft of the drive motor 14 is connected to one of the drive shafts 12 through a transmission assembly 15. The two sets of drive shafts 12 are connected through a synchronization assembly 16. When the drive motor 14 is started, it is convenient to drive one set of drive shafts 12 to rotate through the transmission assembly 15. Through the synchronous transmission of the synchronization assembly 16, it is convenient to drive the other set of drive shafts 12 to rotate, thereby driving multiple sets of drive wheels 13 to drive synchronously, so that it can move back and forth, and thus drive the whole to extend and retract. Furthermore, the transmission assembly 15 and the synchronization assembly 16 can both adopt the transmission form of sprockets and chains or belts and pulleys, preferably the transmission form of sprockets and chains.

[0033] Specifically, a rear baffle 2 is fixedly installed on the rear side of each grandstand 1. The rear baffle 2 facilitates sealing and prevents people's feet from getting stuck in the gaps when the grandstand 1 is unfolded and put into use, as well as prevents objects from falling into the gaps between the two sets of grandstands 1.

[0034] Specifically, the width of the multi-tiered grandstand 1 increases from bottom to top, and each grandstand 1 has safety railings 17 installed on both sides to improve safety.

[0035] Specifically, the guide roller assembly includes multiple guide rollers 4 that are installed in parallel on the rear top of the folding seat 3. The arrangement of multiple guide rollers 4 facilitates guidance.

[0036] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0037] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0038] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A retractable grandstand with high stability, characterized in that: The system includes multiple tiers of grandstands (1), each grandstand (1) has a walking mechanism at its bottom, a lower guide structure is provided between the walking mechanisms on two adjacent grandstands (1), an upper guide structure is provided between two adjacent grandstands (1), and each grandstand (1) is equipped with multiple folding seats (3) that can be hidden at the bottom of the adjacent upper grandstand (1), and the rear top of each folding seat (3) is provided with a guide roller group.

2. The retractable grandstand with high stability according to claim 1, characterized in that: The walking mechanism includes a walking frame (7) fixedly installed at the bottom of the grandstand (1) by a rear upright, and the walking frame (7) is provided with multiple rollers (8) at the front and rear.

3. The retractable grandstand with high stability according to claim 2, characterized in that: The lower guide structure includes a guide bend (9) and a guide clamp (10) with guide sliding fit. Each set of walking frames (7) is provided with a guide bend (9) and a guide clamp (10) on the left and right sides respectively.

4. The retractable grandstand with high stability according to claim 3, characterized in that: The upper guide structure includes a guide groove (5) and a guide shaft (6) that are in a sliding fit. The guide groove (5) and the guide shaft (6) are respectively installed on the adjacent upper and lower grandstands (1).

5. The retractable grandstand with high stability according to claim 4, characterized in that: A drive mechanism is provided at the bottom of the lowest stand (1). The drive mechanism includes a drive frame (11) fixedly installed at the bottom of the lowest stand (1). Two sets of drive shafts (12) are rotatably connected to the drive frame (11). Drive wheels (13) are fixedly installed on both sides of the drive shafts (12). The drive mechanism also includes a drive motor (14) that drives the drive frame (11). The output shaft of the drive motor (14) is connected to one of the drive shafts (12) through a transmission component (15). The two sets of drive shafts (12) are connected through a synchronization component (16).

6. The highly stable telescopic grandstand according to claim 5, characterized in that: A rear panel (2) is fixedly installed on the rear side of each of the grandstands (1).

7. The retractable grandstand with high stability according to claim 6, characterized in that: The width of the multi-tiered stands (1) increases from bottom to top, and each stand (1) is equipped with safety railings (17) on both sides.

8. The retractable grandstand with high stability according to claim 7, characterized in that: The guide roller assembly includes multiple guide rollers (4) that are mounted in parallel on the top rear side of the folding seat (3).

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