Bar chair with compact structure

Abstract

The utility model belongs to the technical field of chair structures, and particularly relates to a bar chair with a compact structure. The utility model provides a bar chair with a compact structure, which is characterized in that the bottom plate is provided with a roller, an air rod, a seat plate, an air rod adjusting plate, a roller mounting groove, a threaded section, a lifting support ring unit and a foot support ring unit, so that 1, the foot support ring unit is in threaded connection with the bottom plate, and the foot support ring unit is in threaded connection with the bottom plate on the premise of ensuring that the foot support function is effective; an original independent foot support structure is integrated and omitted, and the requirement of the concept of compact structure is met; 2, the rollers are directly and fixedly connected with the bottom plate, so that compared with a mode of indirect connection through a spring, the barstool has the characteristic of stable roller structure, and also meets the requirement of the concept of compact structure;

Description

Technical Field

[0001] The utility model belongs to the technical field of chair structures, and in particular relates to a bar chair with a compact structure. Background Art

[0002] Generally, any chair placed in front of a bar counter can be called a bar stool. Bar stools are characterized by their simple structure and relatively high height. Accordingly, their structure primarily consists of a base, gas rods, and a seat, and they generally lack auxiliary structures such as leg rests and lumbar supports.

[0003] On the other hand, the meaning of the word "compact structure" mentioned above mainly refers to: first, the number of disassembled structural units is small, which facilitates production and installation; second, all structures have good installation stability and parts are not easy to fall. These two structural features are very necessary for the efficient use of bar stools.

[0004] For example, a Chinese utility model patent with authorization announcement number CN220937398U and authorization announcement date 2024.05.14 discloses a bar chair that is easy to store, including a base, a lifting rod, and a seat cushion. A limiting ring plate is provided in the base, and multiple moving cylinders are fixed in the limiting ring plate. The base and the moving cylinders are limited by a limiting assembly. The bottom end of the moving cylinder is fixedly connected to a running wheel located in the base, and the running wheel and the base are connected and fixed by a spring located on the inside of the moving cylinder.

[0005] The bar chair in this utility model patent has the following general structural principles and advantages: when the running wheels are located in the base, the device is supported by the base and placed on the support surface. At this time, the device can be parked stably for use. When the limit assembly is released from the limit, the device is supported by the running wheels and placed on the support surface. This makes it easy to move the device to the storage location, saving effort and facilitating movement and storage.

[0006] However, in actual use, the bar chair still has at least the following two shortcomings, which are also the technical problems to be solved by the present utility model, namely:

[0007] First, the footrest structure is neither connected to the seat cushion nor to the base, but is produced and installed as a separate part. This does not meet the requirements of the compact structure concept, resulting in a greatly increased failure rate of the bar chair. At least the effective service life of the footrest function is relatively short.

[0008] Second, the movable handle and the walking wheel structure are connected by springs, and the connection strength is much lower than that of screw connection, welding and other methods. Therefore, there is a risk of easy extension and falling, which also does not meet the requirements of the compact structure concept.

[0009] Therefore, in summary, there is an urgent need for a new, compact bar chair product with an integrated footrest function and a stable roller structure. Utility Model Content

[0010] The utility model provides a bar chair with a compact structure. By arranging rollers, a gas rod, a seat plate, a gas rod adjustment plate, a roller mounting groove, a threaded section, a lifting support ring unit, and a footrest ring unit on a bottom plate, the following are achieved: 1. The footrest ring unit is screwed to the bottom plate, thereby integrating and eliminating an originally independent footrest structure while ensuring the effective function of the footrest, thus meeting the requirements of the concept of a compact structure; 2. The roller is directly fixed to the bottom plate. Compared with the indirect connection method via a spring, the bar chair has the characteristic of a stable roller structure, thus also meeting the requirements of the concept of a compact structure.

[0011] The technical solution adopted by the present invention to solve the above problems is: a bar chair with a compact structure, including rollers, a base plate, a gas rod, a seat plate, and a gas rod adjustment plate, and also including a roller mounting groove arranged on the lower surface of the base plate, a threaded section arranged on the side surface of the base plate, a lifting support ring unit arranged on the threaded section, and a foot support ring unit arranged on the threaded section and located above the lifting support ring unit and used to clamp the lifting support ring unit.

[0012] A further preferred technical solution is that an annular groove for engaging the roller is provided on the annular surface of the roller mounting groove.

[0013] A further preferred technical solution is that the lifting support ring unit includes a lower internal thread ring that is arranged on the thread segment and is supported on the ground by rotating and descending.

[0014] A further preferred technical solution is that the foot support ring unit includes an upper internal threaded ring provided on the threaded section and used for clamping the lower internal threaded ring and placing the passenger's feet.

[0015] A further preferred technical solution is that the lifting support ring unit further includes a groove provided on the outer ring surface of the lower internal threaded ring, and a rotation gripping rod provided in the groove.

[0016] A further preferred technical solution is that the foot support ring unit further includes an elastic anti-slip ring arranged on the upper end surface of the upper internal threaded ring.

[0017] A further preferred technical solution is that the foot support ring unit also includes a positioning ring arranged on the inner ring surface of the upper internal thread ring and engaging with the upper surface of the base plate to limit the maximum descending range of the lower internal thread ring.

[0018] A further preferred technical solution is that the foot support ring unit also includes a radial plate arranged on the inner ring surface of the upper internal threaded ring, which is located above the positioning ring, and a limiting ring arranged on the radial plate and used to sleeve the cylindrical part of the gas rod.

[0019] A further preferred technical solution is that the foot support ring unit further includes a rotating gripping sleeve arranged on the radial plate.

[0020] A further preferred technical solution is that the foot support ring unit further includes a vertical groove provided on the upper internal thread ring and the elastic anti-slip ring and used for engaging the gas rod adjustment plate on the seat plate that has been removed and stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 This is a schematic diagram of the first structural style of the roller mounting groove in the present utility model.

[0023] Figure 3 It is a structural schematic diagram of the lifting support ring unit in the utility model.

[0024] Figure 4 This is a schematic diagram of the position of the rotating grip rod in the present invention from a top view.

[0025] Figure 5 This is a structural diagram of the foot support ring unit in the present invention.

[0026] Figure 6 This is a schematic diagram of the position of the radial plate in the present invention from a top view.

[0027] Figure 7 This is a schematic diagram of the position of the gas rod adjustment plate in the prior art.

[0028] Figure 8 This is a schematic diagram of the use of the vertical slots in the present invention from a top view. At this time, the bar stool has been disassembled and stored, and the gas rod has been removed.

[0029] Figure 9 This is a schematic diagram of the second structural style of the roller mounting groove in the present invention.

[0030] In the figure, the meanings of the marks are as follows:

[0031] Roller 11, bottom plate 12, gas rod 13, seat plate 14, gas rod adjustment plate 15;

[0032] Roller mounting groove 1, threaded section 2, lifting support ring unit 3, foot support ring unit 4, annular groove 5;

[0033] Lower internal thread ring 301, slot 302, rotation grip rod 303, static friction ring 304, clamping ring 305;

[0034] Upper internal thread ring 401 , elastic anti-slip ring 402 , positioning ring 403 , radial plate 404 , limiting ring 405 , rotation grip sleeve 406 , vertical slot 407 . DETAILED DESCRIPTION

[0035] The following description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0036] As attached Figure 1-9 As shown, a compact bar chair includes rollers 11, a base plate 12, a gas rod 13, a seat plate 14, and a gas rod adjustment plate 15, and also includes a roller mounting groove 1 arranged on the lower surface of the base plate 12, a threaded section 2 arranged on the side of the base plate 12, a lifting support ring unit 3 arranged on the threaded section 2, and a foot support ring unit 4 arranged on the threaded section 2 and located above the lifting support ring unit 3 and used to clamp the lifting support ring unit 3.

[0037] In this embodiment, the roller 11 and the base plate 12 are directly connected and fixed, thereby ensuring that the roller 11 has high installation stability. Even if the base plate 12 is lifted off the ground, the roller 11 is not easily separated from it, which meets the requirements of the compact structure concept.

[0038] On the other hand, the foot support ring unit 4 has at least the following two functions:

[0039] First, regardless of whether the lifting support ring unit 3 is touching the ground or not, the foot support ring unit 4 is always clamped to it, so as to prevent the lifting support ring unit 3 from spontaneously rising and falling after the required height is adjusted;

[0040] Second, the height of the upper end surface of the footrest ring unit 4 is similar to that of the ordinary footrest of existing bar stools, ensuring that it has the function of resting feet and eliminating the need for an independent footrest structure that originally needs to be produced and installed separately. This also meets the requirements of the concept of compact structure.

[0041] Among them, the lower cylindrical part of the gas rod 13 is plugged or screwed with the base plate 12, and its upper rod part is plugged with the seat plate 14. The base plate 12 is circular in shape, and the threaded section 2 is provided on its entire annular surface, and the latter is always screwed to install the lifting support ring unit 3 and the foot support ring unit 4.

[0042] In addition, the height adjustment method of the lifting support ring unit 3 is active, and its position state can only be ground support or off the ground, while the height adjustment method of the foot support ring unit 4 is passive, and its adjustment end point is that its lower end face fully and appropriately clamps the upper end face of the lifting support ring unit 3.

[0043] It should be noted that, when the foot support ring unit 4 rotates to clamp the lifting support ring unit 3 , the latter needs to be fixed to prevent the former from rotating with the latter, otherwise both will rotate and fall off the threaded segment 2 .

[0044] Accordingly, when the lifting support ring unit 3 rotates to adjust its height, the bar stool needs to be off the ground. During normal use, the lifting support ring unit 3 can be off the ground, that is, the bar stool can be fixed or movable. However, when it needs to be moved or folded, the lifting support ring unit 3 must be off the ground, and the rolling function of the roller 11 is activated, ensuring that the bar stool moving operation is more labor-saving.

[0045] An annular groove 5 for engaging the roller 11 is provided on the annular surface of the roller mounting groove 1 .

[0046] In the prior art, there are two main ways to install the roller 11:

[0047] First, the mounting rod is a screw, and the screw and the roller body can rotate relative to each other, ultimately achieving the effect of a universal wheel;

[0048] Second, the mounting rod is a round rod with a ring groove, on which a C-shaped retaining spring is installed. In this case, even if the round rod and the roller body cannot rotate relative to each other, the effect of a universal wheel can be achieved.

[0049] All correspondingly, the roller mounting groove 1 matches the annular groove 5, corresponding to the roller 11 of the second structural style mentioned above, corresponding to the attached Figure 9 The roller mounting groove 1 is a threaded groove, corresponding to the roller 11 of the first structural style mentioned above, corresponding to the attached Figure 2 .

[0050] The lifting support ring unit 3 includes a lower internal thread ring 301 which is arranged on the thread segment 2 and is supported on the ground by rotating and descending.

[0051] In this embodiment, when the bar chair is in normal use, the lower internally threaded ring 301 replaces the roller 11 to support the ground, or the former is off the ground, both methods are acceptable. However, the foot support ring unit 4 always clamps the lower internally threaded ring 301 to prevent the height of the two from changing spontaneously.

[0052] Accordingly, the vertical dimension of the threaded section 2 is relatively large, ensuring that even when the lower internal threaded ring 301 is at a relatively high position thereon, the threaded section 2 can provide sufficient threaded dimension for the foot support ring unit 4 .

[0053] The foot support ring unit 4 includes an upper internal threaded ring 401 provided on the threaded section 2 and used for clamping the lower internal threaded ring 301 and placing the passenger's feet.

[0054] In this embodiment, the footrest of the footrest ring unit 4 is located on the upper end surface of the upper internally threaded ring 401. When the bar stool is fixed, the upper internally threaded ring 401 is located relatively low along with the lower internally threaded ring 301. Conversely, when the bar stool is movable, the upper internally threaded ring 401 is located relatively high. This may cause a slight change in the actual footrest height, but it does not affect the normal function of the footrest.

[0055] The upper internal thread ring 401 adjusts its own height after the lower internal thread ring 301 , and the end point of the adjustment operation is that the upper internal thread ring 401 actively clamps the upper end surface of the lower internal thread ring 301 .

[0056] The lifting support ring unit 3 further includes a slot 302 provided on the outer ring surface of the lower internal thread ring 301 , and a rotation gripping rod 303 provided in the slot 302 .

[0057] In this embodiment, the rotating gripping rod 303 is vertically and inwardly arranged on the slot 302 to prevent the rotating gripping rod 303 from bumping against or tripping passersby.

[0058] The main function of the rotating grip rod 303 is to make the rotation operation of the lower internal thread ring 301 more convenient and clean. Otherwise, the lower internal thread ring 301 can only be rotated by holding its outer ring surface with hands, which is troublesome and uncomfortable.

[0059] The foot support ring unit 4 further includes an elastic anti-slip ring 402 provided on the upper end surface of the upper internal thread ring 401 .

[0060] In this embodiment, the elastic anti-slip ring 402 is made of ordinary rubber and is bonded to the upper end surface of the upper internal thread ring 401 to prevent the foot from slipping on the upper internal thread ring 401 as much as possible.

[0061] Because the main materials of the lifting support ring unit 3 and the foot support ring unit 4 are metal or hard plastic, the anti-slip performance of their surfaces is far inferior to that of rubber, so the role of the elastic anti-slip ring 402 is very important.

[0062] The foot support ring unit 4 further includes a positioning ring 403 which is arranged on the inner ring surface of the upper internal thread ring 401 and is engaged with the upper surface of the bottom plate 12 to limit the maximum descending range of the lower internal thread ring 301 .

[0063] In this embodiment, whether the lower internally threaded ring 301 is positioned too high or too low on the threaded segment 2, it will not be able to be adequately threaded with the latter. If the lower internally threaded ring 301 is too high, the threaded segment 2 space left for the upper internally threaded ring 401 will be relatively insufficient, resulting in an unstable footrest function and the upper internally threaded ring 401 being prone to falling. If the lower internally threaded ring 301 is too low, it will not be able to maintain a stable connection with the threaded segment 2, ultimately causing the entire bar stool to tip over.

[0064] The difference is that when the lower internally threaded ring 301 is adjusted upward, the appropriate adjustment end position is easy to determine, that is, the roller 11 is fully exposed and the lower end surface of the lower internally threaded ring 301 is completely off the ground. However, when the lower internally threaded ring 301 is adjusted downward, the appropriate adjustment end position is difficult to determine, which is the role of the positioning ring 403.

[0065] Correspondingly, when the positioning ring 403 engages with the upper end surface of the base plate 12 and the upper internal threaded ring 401 clamps the lower internal threaded ring 301, the lower internal threaded ring 301 completely replaces the roller 11 and touches the ground for support, and the upper internal threaded ring 401 has sufficient threaded size on the threaded segment 2, which is the appropriate adjustment end position of the lower internal threaded ring 301.

[0066] However, it should be noted that the foot support ring unit 4 with the positioning ring 403 has certain vertical dimension requirements for the roller 11 it is adapted to, and its downward protruding dimension cannot be too large or too small.

[0067] In other words, when replacing the rollers 11 of the bar chair, it is necessary to replace roller products with the same vertical dimensions as much as possible.

[0068] Finally, the threaded section of the upper internal threaded ring 401 with the positioning ring 403 only needs to extend upward to the upper surface of the positioning ring 403. No thread is required above the positioning ring 403, and it is impossible to screw the threaded section 2 thereon.

[0069] The foot support ring unit 4 also includes a radial plate 404 arranged on the inner ring surface of the upper internal thread ring 401 and located above the positioning ring 403, and a limiting ring 405 arranged on the radial plate 404 and used to sleeve the cylindrical part of the gas rod 13.

[0070] In this embodiment, the distance between the inner ring surface of the limiting ring 405 and the outer ring surface of the cylinder of the gas rod 13 is 3-5 mm. The radial plate 404, the limiting ring 405 and the upper internal threaded ring 401 are integrally formed. The former two cooperate with each other in order to connect the gas rod 13 and the upper internal threaded ring 401 as a whole, thereby improving the structural strength of the entire bar chair.

[0071] The foot support ring unit 4 further includes a rotation gripping sleeve 406 provided on the radial plate 404 .

[0072] In this embodiment, the material of the rotating grip sleeve 406 is soft rubber, and its function is to make the rotation of the upper internal threaded ring 401 relatively comfortable, because the material of the radial plate 404 is metal or hard plastic. If the above two are directly gripped, the gripping experience is relatively poor.

[0073] Correspondingly, the soft rubber gripping sleeve can also be used on the rotating gripping rod 303 .

[0074] The foot support ring unit 4 further includes a vertical slot 407 provided on the upper internal thread ring 401 and the elastic anti-slip ring 402 and used for engaging the gas rod adjustment plate 15 on the seat plate 14 that has been removed and stored.

[0075] In this embodiment, the vertical slot 407 only works before the bar chair is installed and used, and during maintenance. At this time, the gas rod 13 has been removed from the base plate 12, and the seat plate 14 and the gas rod adjustment plate 15 are scattered.

[0076] At this time, the seat plate 14 is placed on the upper end surface of the upper internal threaded ring 401, and the gas rod adjustment plate 15 is snapped into the vertical slot 407, which can ensure that the seat plate 14 has high storage stability and is not easily lost.

[0077] Finally, a static friction ring 304 is bonded to the lower end surface of the lower internal thread ring 301, and a clamping ring 305 is bonded to the upper end surface. Both are made of the same material as the elastic anti-slip ring 402, so that the lower internal thread ring 301 is not easy to slip against the ground below and the lower internal thread ring 301 above.

[0078] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications are possible within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. These modifications are non-inventive and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A compact bar chair comprising rollers (11), a base plate (12), a gas rod (13), a seat plate (14), and a gas rod adjustment plate (15), characterized in that: It also includes a roller mounting groove (1) provided on the lower surface of the base plate (12), a threaded section (2) provided on the side surface of the base plate (12), a lifting support ring unit (3) provided on the threaded section (2), and a foot support ring unit (4) provided on the threaded section (2), located above the lifting support ring unit (3), and used for clamping the lifting support ring unit (3).

2. The compact bar chair according to claim 1, characterized in that: An annular groove (5) for engaging the roller (11) is provided on the annular surface of the roller mounting groove (1).

3. The compact bar chair according to claim 1, characterized in that: The lifting support ring unit (3) comprises a lower internal thread ring (301) which is arranged on the thread segment (2) and is used to support the ground by rotating and descending.

4. The compact bar chair according to claim 3, characterized in that: The foot support ring unit (4) comprises an upper internal threaded ring (401) arranged on the threaded section (2) and used for clamping the lower internal threaded ring (301) and placing the passenger's feet.

5. The compact bar chair according to claim 3, characterized in that: The lifting support ring unit (3) further comprises a slot (302) provided on the outer ring surface of the lower internal thread ring (301), and a rotation gripping rod (303) provided in the slot (302).

6. The compact bar chair according to claim 4, characterized in that: The foot support ring unit (4) further comprises an elastic anti-slip ring (402) arranged on the upper end surface of the upper internal threaded ring (401).

7. The compact bar chair according to claim 4, characterized in that: The foot support ring unit (4) further comprises a positioning ring (403) which is arranged on the inner ring surface of the upper internal thread ring (401) and is used to limit the maximum descending range of the lower internal thread ring (301) by engaging with the upper surface of the bottom plate (12).

8. The compact bar chair according to claim 7, characterized in that: The foot support ring unit (4) further comprises a radial plate (404) provided on the inner ring surface of the upper internal threaded ring (401) and located above the positioning ring (403), and a limiting ring (405) provided on the radial plate (404) and used for sleeve-engaging the cylindrical portion of the gas rod (13).

9. The compact bar chair according to claim 8, characterized in that: The foot support ring unit (4) further comprises a rotation gripping sleeve (406) arranged on the radial plate (404).

10. The compact bar chair according to claim 6, characterized in that: The foot support ring unit (4) further comprises a vertical slot (407) provided on the upper internal threaded ring (401) and the elastic anti-slip ring (402) and used for engaging the gas rod adjustment plate (15) on the seat plate (14) that has been removed and stored.

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