Anti-toppling bar chair base balance adjusting device
By designing a balance adjustment mechanism consisting of casters, circular plates, and balance blocks on the base of the bar chair, the center of gravity distribution is automatically adjusted, solving the problem of the bar chair wobbling or tipping over on uneven ground, thus improving stability and safety.
Patent Information
- Application Number
- CN202520719403.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-16
AI Technical Summary
Existing bar stools are prone to wobbling or tipping over on uneven surfaces, affecting user comfort and posing safety hazards. Existing solutions that increase the weight or area of the base are costly and have limited effectiveness.
Design an anti-tipping bar chair base balance adjustment device. The balance adjustment mechanism consists of casters, a circular plate, a balance block, an adjustment shaft, and a positioning block. It automatically adjusts the chair's center of gravity distribution and bottom support structure according to the ground conditions to ensure stability.
It effectively improves stability and safety on uneven ground, simplifies the structure and reduces costs, and enhances user comfort and safety.
Smart Images
Figure CN223900530U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bar chair technical field, concretely is a kind of anti-toppling bar chair base balance adjusting device. BACKGROUND
[0002] Bar chair as a kind of common furniture, is widely used in various catering, entertainment places. With the increasing requirement of people for comfort and safety, the traditional bar chair design has been difficult to meet the needs of modern users. Especially in the design of some high bar chair, how to ensure that the chair can maintain good stability under various conditions becomes an important issue faced by designers.
[0003] The existing bar chair usually increases the weight of base or expands the area of base to improve stability, however, this method not only increases manufacturing cost, but also in actual application, due to the diversity of ground conditions, even if the area of base is increased or the weight is increased, it is impossible to completely avoid the situation that the chair shakes or even topples during use, especially when used on uneven ground, this design defect is more obvious, which greatly reduces the user's use comfort, and may cause safety hazards. INVENTION CONTENTS
[0004] The utility model aims at providing a kind of anti-toppling bar chair base balance adjusting device to solve the problem that the stability of current bar chair on uneven ground is poor, which affects the use comfort of user, and may cause safety hazards as described in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-toppling bar chair base balance adjusting device, including seat rod body, the bottom end of the seat rod body is equipped with base, the edge of the bottom of the base is equipped with universal wheel, the inside of the bottom end of the base is embedded and installed with circular plate by circular groove, the inside of the circular plate is surrounded and is equipped with several balance grooves of strip structure, the balance groove in the circular plate is equipped with balance block, and the bottom end outside of the circular plate is equipped with the balance adjusting mechanism by adjusting shaft and positioning block in the position corresponding to balance groove, and the inside of the base two sides is equipped with movable hole, the inside of the movable hole is equipped with the adjusting block that can be up and down, the universal wheel is fixedly installed at the bottom of adjusting block.
[0006] Preferably, the inside of the movable hole is also equipped with elastic spring, and the upper and lower ends of the elastic spring are connected with the top inner wall of movable hole and the top of adjusting block respectively.
[0007] The top of the movable hole is preferably threaded with an adjusting stud, and the lower end of the adjusting stud is welded with a pressing block inside the movable hole, and the top of the adjusting block is provided with a circular interface matched with the structure of the pressing block.
[0008] The top of the circular plate is preferably uniformly provided with a plurality of clamping strips, and the inner wall of the circular groove at the bottom end of the base is uniformly provided with a plurality of clamping grooves matched with the structure of the clamping strips.
[0009] The bottom of the positioning block is preferably circumferentially welded to the outer end of the balancing groove of each circular plate, the adjusting shaft is transversely inserted into the positioning block, and the inner end of the adjusting shaft is inserted into the balancing groove of the circular plate through the connecting piece and fixedly connected with the bottom of the balancing block.
[0010] The inner end of the adjusting shaft is preferably inserted into the positioning block.
[0011] Compared with the prior art, the anti-toppling bar chair base balance adjusting device effectively improves the stability on uneven ground, simplifies the structure and reduces the cost, and improves the user's use comfort and safety. The device is provided with a seat rod body, a circular plate and a balancing block in the base, an adjusting shaft and a positioning block, and a precise fit between the adjusting block in the movable hole and the universal wheel, so that the center of gravity distribution and the bottom support structure of the chair can be automatically adjusted according to the specific conditions of the ground, and good stability and safety can be ensured under various complex ground conditions, and the shaking or toppling risk caused by uneven ground is effectively reduced, and the user has a more comfortable use experience. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structure schematic view of the anti-toppling bar chair base balance adjusting device.
[0013] Figure 2 It is a structure schematic view of the anti-toppling bar chair base balance adjusting device.
[0014] Figure 3 It is a structure schematic view of the anti-toppling bar chair base balance adjusting device.
[0015] Figure 4 It is a structure schematic view of the anti-toppling bar chair base balance adjusting device.
[0016] In the figure: 1, seat rod body; 2, base; 3, universal wheel; 4, round plate; 5, counterweight; 6, adjusting shaft; 7, positioning block; 8, clamping strip; 9, damping ring; 10, movable hole; 11, adjusting block; 12, tension spring; 13, adjusting stud; 14, pressing block. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0018] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of anti-toppling bar chair base balance adjusting device, including seat rod body 1, seat rod body 1 is adjustable telescopic structure and bottom is equipped with footboard and top is equipped with seat part, the bottom end of seat rod body 1 is equipped with base 2, base 2 is circular structure, the edge of the both sides of the bottom of base 2 is equipped with universal wheel 3, universal wheel 3 is the wheel of prior art with self-locking structure, the inside of the bottom end of base 2 is embeddedly installed with circular plate 4 by circular groove, the inside of circular plate 4 is surrounded and is equipped with several balance grooves of strip structure, balance block 5 is movably equipped in the balance groove of circular plate 4, and the bottom end outside of circular plate 4 is equipped with the balance adjusting mechanism of corresponding position by adjusting shaft 6 and locating block 7, and the inside of the both sides of base 2 is equipped with movable hole 10, the inside of movable hole 10 is equipped with the adjusting block 11 of up and down adjustable position, universal wheel 3 is fixedly installed in the bottom of adjusting block 11 by bolt, this structure every group adjusting shaft 6 and locating block 7 constitute balance adjusting mechanism, allow to automatically adjust the position of corresponding balance block 5 according to the uneven degree of ground, to optimize the gravity distribution of base 2, enhance stability, simultaneously, the adjusting block 11 in movable hole 10 that the both sides inside of base 2 are opened can be up and down adjustable position according to the specific situation of ground, ensure that universal wheel 3 is always closely adhered to ground, avoid the risk of chair shaking or toppling, overall, effectively solve the problem of cost increase and still possibly appear shaking or even toppling on uneven ground in prior art because of increasing base weight or expanding base area to improve stability, not only simplify structure and reduce cost, also greatly improve the use comfort and security of user, so that even on uneven ground, the stability and security of chair can be maintained, provide more comfortable, safe sitting posture experience for user, the inside of movable hole 10 is also equipped with elastic spring 12, and the upper and lower ends of elastic spring 12 are connected with the top inner wall of movable hole 10 and the top of adjusting block 11 respectively, the top of movable hole 10 is inserted with adjusting stud 13 by thread structure, and one end of adjusting stud 13 inside movable hole 10 is welded and fixed with lower block 14, and the top of adjusting block 11 is equipped with the round interface matched with the structure of lower block 14, when the vertical position of universal wheel 3 needs to be fine-tuned to adapt to different ground conditions, adjusting stud 13 can be rotated, lower block 14 will move up and down with the rotation of adjusting stud 13, when lower block 14 moves down, it will exert pressure on adjusting block 11 through round interface, so that adjusting block 11 moves down along the inner wall of movable hole 10, and when lower block 14 releases pressure, elastic spring 12 can help adjusting block 11 to restore to the original position or provide appropriate elastic support according to ground conditions, ensure that universal wheel 3 can closely adhere to various ground conditions, the top of circular plate 4 is uniformly welded and fixed with several clamping strips 8, and the top inner wall of circular groove inside the bottom end of base 2 is uniformly equipped with several clamping grooves matched with the structure of clamping strip 8, and the both sides of base 2 are equipped with hidden hole and are screwed with locking bolt,And the top of the two sides of the circular plate 4 is also provided with bolt hole, this structure when need to install or adjust the position of the circular plate 4, first through the clamping strip 8 and the bottom end inside circular groove top inner wall evenly provided with clamping groove preliminary positioning and fixed, and the two sides of the base 2 are provided with hidden hole and through the screw locking bolt to reinforce the connection, so not only greatly improves the connection strength and overall stability between the circular plate 4 and the base 2, also facilitates the disassembly and maintenance of the circular plate 4, positioning block 7 is fixed around the bottom of the balance groove outer end of each circular plate 4, and the adjusting shaft 6 transversely penetrates in the inside of the positioning block 7, and the inner end of the adjusting shaft 6 is penetrated to the inside of the balance groove of the circular plate 4 through the connecting piece and is fixedly connected with the bottom of the balance block 5, the bottom wall of the balance groove of each circular plate 4 is provided with a strip-shaped opening matched with the inner end connecting piece structure of the adjusting shaft 6, this structure when need to adjust the position of the balance block 5 to optimize the chair's gravity distribution, the adjusting shaft 6 can be moved horizontally in the inside of the positioning block 7, so as to drive the balance block 5 to adjust the position along the balance groove in the circular plate 4, realize the accurate adjustment of the position of the balance block 5, the inside of the positioning block 7 is fixedly embedded with the damping ring 9, and the connecting part of the adjusting shaft 6 and the positioning block 7 penetrates in the inside of the damping ring 9, this structure when the user applies force to rotate the adjusting shaft 6, the damping ring 9 will give appropriate friction, so that the adjusting shaft 6 can be smoothly and accurately moved to the required position, and keep stable, will not be accidentally displaced because of slight collision or vibration.
[0019] Working principle: when using the anti-toppling bar stool base balance adjusting device, first, adjust the height to the appropriate height through the adjustable telescopic structure of the seat rod body 1, and set the footrest and seat part according to the user's needs, then, the circular plate 4 is preliminarily positioned and fixed through the clamping strip 8 on the top of the circular plate 4 and the clamping groove evenly arranged on the top inner wall of the bottom end inside circular groove of the base 2, ensure that the circular plate 4 is stably embedded in the base 2, then, use the locking bolt to reinforce the connection through the hidden hole on the two sides of the base 2 and the bolt hole on the top of the circular plate 4, ensure the firmness between the circular plate 4 and the base 2, when need to fine tune the vertical position of the universal wheel 3 to adapt to different ground conditions, rotate the adjusting stud 13 to make the lower pressing block 14 move up and down, when the lower pressing block 14 moves down, it will apply pressure to the adjusting block 11 through the circular interface on the top of the adjusting block 11, so that the adjusting block 11 moves down along the inner wall of the movable hole 10, in turn drives the universal wheel 3 to adjust to the appropriate position, when the lower pressing block 14 releases the pressure, the tension spring 12 helps the adjusting block 11 to recover or provide appropriate elastic support, next, if need to adjust the chair's gravity distribution according to the unevenness of the ground, adjust the position of the balance block 5 by pushing the adjusting shaft 6 through the positioning block 7, in this way, the whole seat can automatically optimize the gravity distribution according to the ground conditions, ensure that the chair can keep stable under various complex ground conditions, so as to complete a series of work.
[0020] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A kind of anti-tipping bar chair base balance adjusting device, including seat stem body (1), the bottom end of the seat stem body (1) is equipped with base (2), the edge of the bottom of base (2) both sides is equipped with universal wheel (3), it is characterized by: The inside of the bottom end of the base (2) is embeddedly installed with a circular plate (4) through a circular groove, the inside of the circular plate (4) is surrounded with a plurality of balance grooves in strip structure, the balance grooves of the circular plate (4) are all provided with balance blocks (5), the outside of the bottom end of the circular plate (4) is all provided with balance adjusting mechanisms composed of adjusting shafts (6) and positioning blocks (7) at positions corresponding to the balance grooves, the inside of both sides of the base (2) is all provided with movable holes (10), the inside of the movable hole (10) is provided with an adjusting block (11) which can be adjusted up and down, and the universal wheel (3) is fixedly installed at the bottom of the adjusting block (11).
2. A tip resistant bar stool base balance adjustment device according to claim 1, characterised in that: The inside of the movable hole (10) is also provided with a tension spring (12), and the upper and lower ends of the tension spring (12) are connected with the top inner wall of the movable hole (10) and the top of the adjusting block (11) respectively.
3. A tip resistant bar stool base balance adjustment device according to claim 2, characterised in that: The top of the movable hole (10) is inserted with an adjusting stud (13) through a threaded structure, one end of the adjusting stud (13) inside the movable hole (10) is welded with a pressing block (14), and the top of the adjusting block (11) is provided with a circular interface matched with the structure of the pressing block (14).
4. A tip resistant bar stool base balance adjustment device according to claim 1, wherein: The top of the circular plate (4) is uniformly provided with a plurality of clamping strips (8), and the top inner wall of the circular groove inside the bottom end of the base (2) is uniformly provided with a plurality of clamping grooves matched with the structure of the clamping strips (8).
5. A tip resistant bar stool base balance adjustment device according to claim 1, wherein: The positioning block (7) is welded and fixed at the bottom of the outer end of the balance groove of each circular plate (4), the adjusting shaft (6) is transversely penetrated in the inside of the positioning block (7), and the inner end of the adjusting shaft (6) is penetrated into the inside of the balance groove of the circular plate (4) through a connecting piece and fixedly connected with the bottom of the balance block (5).
6. A tip resistant bar stool base balance adjustment device according to claim 5, wherein: The inside of the positioning block (7) is fixedly embeddedly installed with a damping ring (9), and the connecting part of the adjusting shaft (6) and the positioning block (7) is penetrated in the inside of the damping ring (9).