CN220655165U - Rotary stool - Google Patents

Abstract

The utility model discloses a rotary stool which comprises a supporting structure, a supporting layer arranged on the supporting structure and a rotary layer rotationally connected to the supporting layer, wherein a plurality of rotatable balls are arranged on the supporting layer, the rotary layer is supported on the balls, the balls roll when the rotary layer rotates, the balls are contacted with the back surface of the rotary layer, the balls bring strong support to the rotary layer, the rotation space between the rotary layer and the supporting layer is greatly increased, the friction force between the rotary layer and the supporting layer is reduced, the rotary layer is smoother, the rotary effect is greatly enhanced, and meanwhile, the service life of a product is greatly prolonged. And the rolling balls roll when the rotating layer rotates, so that the noise is low. The periphery of the rotating layer is provided with the surrounding wall, the supporting layer is surrounded by the surrounding wall, and leg muscles of a user are prevented from being clamped in gaps between the rotating layer and the supporting layer, so that the rotating layer is safer.

Description

Rotary stool

Technical Field

The utility model relates to the field of stools, in particular to a rotary stool.

Background

Stool is a common furniture in life, in order to meet the rotation requirement, people have researched and developed rotatable stool. The existing rotary stool mostly comprises supporting feet, a supporting layer and a rotary layer, wherein the supporting layer and the rotary layer are arranged on the supporting feet, and a rotating shaft at the bottom of the rotary layer is inserted into a central hole of the supporting layer, so that the rotary layer is rotationally connected onto the supporting layer. However, the rotating stool with the prior structure has large contact area between the rotating layer and the supporting layer, large friction force and rotating noise, so the patent document of the utility model named as the rotating stool with the patent number 202020839953.8 discloses that the contact area between the rotating layer and the supporting layer is reduced through the annular sliding strip, thereby reducing friction force and noise.

However, friction between the annular slide bar and the support layer still causes obstruction to rotation and noise due to rotation of the rotating layer.

Disclosure of Invention

The utility model mainly aims to provide a rotary stool, which aims to realize smoother rotation, durability and low noise.

The utility model provides a rotary stool which comprises a supporting structure, a supporting layer arranged on the supporting structure and a rotary layer rotatably connected to the supporting layer, wherein a plurality of rotatable balls are arranged on the supporting layer, and the rotary layer is supported on the balls.

Preferably, the outer periphery of the rotating layer is provided with an enclosing wall, which encloses the supporting layer.

Preferably, the cross section of the surrounding wall is circular arc.

Preferably, the supporting layer is provided with a spherical crown-shaped mounting groove matched with the ball, and the ball is rotatably mounted in the mounting groove.

Preferably, the depth of the mounting groove is greater than 1/2 of the height of the ball.

Preferably, the balls are arranged at intervals to form at least one circle of ball rings by taking the rotating shaft of the rotating layer as a circle center, and the back surface of the rotating layer is provided with a rotating ring correspondingly contacted with the ball rings.

Preferably, a rotating shaft is arranged in the center of the back surface of the rotating layer, a mounting hole corresponding to the rotating shaft is arranged on the supporting layer, and the rotating shaft penetrates into the mounting hole to be connected in a rotating mode.

Preferably, the front end of the rotating shaft is provided with two pairs of outward-expanding elastic parts, a gap is arranged between the two elastic parts, and the outer diameter of the end part formed by the two elastic parts is larger than the inner diameter of the mounting hole by extruding the elastic parts to the gap, so that the elastic parts penetrate into the mounting hole and extend out of the mounting hole.

Preferably, the support structure comprises a support cross bar connected to the back of the support layer and support legs connected to the support cross bar, at least two groups of positioning grooves and connecting holes for connecting the support cross bar are reserved on the back of the support layer, one group of support legs is suitable for round tubes, and the other support leg is suitable for flat tubes or oval tubes.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the rotary stool provided by the utility model, the plurality of rotatable balls are arranged on the supporting layer, the rotary layer is supported on the balls, the balls roll when the rotary layer rotates, the balls are contacted with the back surface of the rotary layer, and the balls bring strong support to the rotary layer, so that the rotating space between the rotary layer and the supporting layer is greatly increased, the friction force between the rotary layer and the supporting layer is reduced, the rotary layer rotates more smoothly, the rotary effect is greatly enhanced, and meanwhile, the service life of a product is greatly prolonged. And the rolling balls roll when the rotating layer rotates, so that the noise is low.

2. The upper layer and the lower layer of the rotary stool on the market are flat, and a gap exists between the upper layer and the lower layer. For users with relatively heavy weights, or for users with relatively loose skin of some ages, it is very easy to clip to the muscles of their legs. The surrounding walls are arranged on the periphery of the rotating layer, the supporting layer is surrounded by the surrounding walls, so that gaps between the rotating layer and the supporting layer do not exist, the problem of great safety that leg muscles of a user are clamped is solved, and the product is difficult to store dust and bacteria and is easier to clean due to the design. The cross section of the surrounding wall is designed in an arc shape, so that a user sits on the seat more comfortably.

3. The support structure comprises a support cross rod connected to the back of the support layer and support legs connected with the support cross rod, wherein the back of the support layer is reserved with at least two groups of positioning grooves and connecting holes for connecting the support cross rod, and one group of positioning grooves and connecting holes correspond to common round tubes and bear common loads. The other group of positioning grooves and connecting holes are corresponding to the enlarged flat pipes or the reinforced oval pipes and correspond to the heavy commodity. The support structure is suitable for common bearing and reinforced bearing, and is dual-purpose for one plate.

Drawings

Fig. 1 is a schematic front view of a support layer of the swivel stool of the present utility model.

Fig. 2 is a schematic back view of the swivel layer of the swivel stool of the present utility model 1.

Fig. 3 is a schematic back view of the support layer of the swivel stool of the present utility model.

Fig. 4 is a schematic structural view of the rotary stool of the present utility model.

Fig. 5 is a structural exploded view of the rotary stool of the present utility model.

Fig. 6 is a schematic rear view of the swivel layer of the swivel stool of the present utility model 2.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals identify like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 6, an embodiment of the present utility model provides a swivel stool including a support structure, a support layer 20 provided on the support structure, and a swivel layer 10 rotatably coupled to the support layer 20. The support layer 20 and the rotation layer 10 in this embodiment are flat plates, a plurality of rotatable balls 22 are provided on the support layer 20, and the rotation layer 10 is supported on the balls 22. The support layer 20 is provided with a spherical crown-shaped mounting groove which is matched with the ball 22, and the ball 22 is rotatably mounted in the mounting groove. The depth of the mounting groove is greater than 1/2 of the height of the balls 22 so that the balls 22 cannot easily escape from the mounting groove.

The balls 22 in this embodiment are stainless steel balls. The balls 22 are arranged at intervals to form at least one circle of ball rings around the rotation axis of the rotary layer 10, the rotary ring 13 correspondingly contacted with the ball rings is arranged on the back surface of the rotary layer 10, and the rotary layer 10 is supported on the balls 22 through the rotary ring 13. The ball ring in this embodiment is provided with 2 rings.

The rolling balls 22 roll when the rotary layer 10 rotates, the rolling balls 22 are in contact with the back surface of the rotary layer 10, the rolling balls 22 support the rotary layer 10 strongly, the rotating space between the rotary layer 10 and the supporting layer 20 is greatly increased, the friction between the rotary layer 10 and the supporting layer 20 is reduced, the rotary layer 10 rotates more smoothly, the rotary effect is greatly enhanced, and meanwhile, the service life of a product is greatly prolonged. And the rotating layer 10 rolls with the balls 22 when rotating, so that the noise is low.

The center of the back of the rotary layer 10 is provided with a rotary shaft, the support layer 20 is provided with a mounting hole 21 corresponding to the rotary shaft, and the rotary shaft penetrates into the mounting hole 21 to be rotationally connected. The rotating shaft is made of plastic, the front end of the rotating shaft is provided with two pairs of outward-expansion elastic parts 11 made of plastic, and gaps 12 are formed between the two elastic parts 11. The outer diameter of the end part formed by the two elastic parts 11 is larger than the inner diameter of the mounting hole 21, and when the rotary layer 10 is assembled, the elastic parts 11 on two sides are extruded to the middle empty space 12, so that the elastic parts 11 penetrate into the mounting hole 21 and extend out of the mounting hole 21, and the elastic parts 11 penetrating into the mounting hole 21 are not easy to separate from the mounting hole 21, thereby ensuring that the rotary layer 10 is not easy to slip when rotating, and the rotary layer is safer.

The surrounding wall 14 is arranged on the periphery of the rotary layer 10, the supporting layer 20 is surrounded by the surrounding wall 14, so that the leg muscles of a user are prevented from being clamped in a gap between the rotary layer 10 and the supporting layer 20, and the safety is improved. The cross section of the enclosure wall 14 is of circular arc design, so that the user sits more comfortably.

The supporting structure comprises a supporting cross rod connected to the back of the supporting layer 20 and supporting legs connected with the supporting cross rod, wherein two groups of positioning grooves 23 and connecting holes 24 for connecting the supporting cross rod are reserved on the back of the supporting layer 20, and one group of positioning grooves and connecting holes correspond to common round tubes and bear common load. The other group of positioning grooves and connecting holes are corresponding to the enlarged flat pipes or the reinforced oval pipes and correspond to the heavy commodity. The support structure is suitable for common bearing and reinforced bearing, and is dual-purpose for one plate.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims (8)

1. The rotary stool comprises a supporting structure, a supporting layer arranged on the supporting structure and a rotary layer rotatably connected to the supporting layer, and is characterized in that a plurality of rotatable balls are arranged on the supporting layer, and the rotary layer is supported on the balls; the center at the back of the rotary layer is provided with a rotary shaft, the support layer is provided with a mounting hole corresponding to the rotary shaft, and the rotary shaft penetrates into the mounting hole to be rotationally connected.

2. The swivel stool of claim 1, wherein the swivel layer is provided with a surrounding wall on its outer periphery, the surrounding wall surrounding the support layer.

3. The swivel stool of claim 2, wherein the perimeter wall is arcuate in cross-section.

4. A swivel stool according to claim 1, 2 or 3, wherein the support layer is provided with a spherical crown-shaped mounting groove adapted to the ball, the ball being rotatably mounted in the mounting groove.

5. The swivel stool of claim 4, wherein the depth of the mounting groove is greater than 1/2 of the height of the ball.

6. The rotary stool according to claim 5, wherein the plurality of balls are arranged at intervals around the rotation axis of the rotary layer to form at least one circle of ball rings, and a rotation ring in corresponding contact with the ball rings is provided on the back surface of the rotary layer.

7. The rotary stool according to claim 6, wherein the front end of the rotating shaft is provided with two pairs of outwardly-widened elastic portions, a gap is provided between the elastic portions, the outer diameter of the end portions formed by the elastic portions is larger than the inner diameter of the mounting hole, and the elastic portions are made to penetrate into and protrude from the mounting hole by pressing the elastic portions toward the gap.

8. A swivel stool according to claim 1, 2 or 3, wherein the support structure comprises a support rail connected to the back of the support layer and a support foot connected to the support rail, the back of the support layer being pre-reserved with at least two sets of positioning slots and connection holes for connecting the support rail.