CN216702071U

CN216702071U - Three-leg folding stool

Info

Publication number: CN216702071U
Application number: CN202123290677.8U
Authority: CN
Inventors: 杨宝庆; 倪庆干
Original assignee: Zhejiang Hengfeng Top Leisure Co Ltd
Current assignee: Zhejiang Hengfeng Top Leisure Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-10
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a three-leg folding stool, wherein each supporting tube is respectively hinged with a supporting piece, the supporting tubes can rotate relative to the supporting pieces, the axes of rotating shafts of the supporting tubes are distributed in an equal central symmetry manner, the folding is realized when the supporting tubes rotate to be in a mutually parallel state, and the using state is realized when the supporting tubes rotate to be in an inclined state to be in a maximum position; the support seat surfaces are respectively fixed at the top ends of the support tubes; each supporting tube comprises an inner tube and an outer tube which are nested with each other, and the inner tube can telescopically slide relative to the outer tube, so that the length of the whole supporting tube is changed; under the user state, the inner tube is outwards stretched out, and under fold condition, the inner tube inwards retracts, under the circumstances that the guarantee user state has sufficient length, reduces the whole size of folding the state of accomodating, can reduce the size after folding effectively, portable more.

Description

Three-leg folding stool

Technical Field

The utility model relates to the field of seats, in particular to a three-leg folding stool.

Background

In consideration of portability, products used outdoors usually adopt a folding design, most of temporarily used seats are in a folding and storage form, the existing folding stool is complex in structure and comprises a plurality of transversely and longitudinally crossed rods, and the folding stool can be folded, but the size after being folded is still large, so that the folding stool is not favorable for carrying and transportation.

For those skilled in the art, how to provide a foldable seat with a compact structure and more convenient carrying is a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a three-leg folding stool which can rotate and fold, can realize retraction, has smaller volume after being folded and improves portability, and the specific scheme is as follows:

a three-leg folding stool comprises a supporting piece, three supporting tubes and a supporting seat surface, wherein each supporting tube is hinged to the supporting piece, the supporting tubes can rotate relative to the supporting piece, and the supporting tubes can be parallel to each other and can be folded or obliquely supported; the axes of the rotating shafts of the supporting tubes are distributed in an equal central symmetry manner; the support seat surfaces are respectively fixed at the top ends of the support tubes;

each supporting tube comprises an inner tube and an outer tube which are nested with each other, the inner tube can slide telescopically relative to the outer tube, and the inner tube can be fixedly positioned relative to the outer tube when being extended.

Optionally, the supporting members are provided with mounting through holes, each supporting tube is inserted into one mounting through hole, and the supporting tubes are supported by the inner walls of the mounting through holes to limit the inclination angle.

Optionally, the outer tube is hinged to the support.

Optionally, a U-shaped connecting piece is fixedly arranged on the outer side of the pipe wall of the outer pipe, and an opening for inserting the rotating shaft is formed in the connecting piece and is matched with the supporting piece to realize hinging.

Optionally, the lower end of the outer tube is hinged to the support piece, the inner tube can extend downward, the bottom end of the inner tube is in contact with the ground, and the top end of the outer tube is connected to the support seat surface.

Optionally, the upper end of the outer tube is hinged to the support piece, the inner tube can extend upwards, the bottom end of the outer tube is in contact with the ground, and the top end of the inner tube is connected with the support seat surface.

Optionally, an elastic pin base is installed in an inner cavity of the inner tube, an elastic pin head is installed on the elastic pin base in a sliding mode, an elastic pin spring is arranged between the elastic pin head and the elastic pin base, and a part of the elastic pin head can be ejected out of the inner tube by the elastic pin spring and extends into a positioning hole formed in the outer tube to achieve telescopic positioning.

Optionally, at least two positioning holes are arranged on the tube wall of the outer tube along the length direction.

Optionally, a sole is installed at the bottom end of the supporting tube, and the sole is in contact with the ground in an attaching manner in a state that the supporting tube is obliquely unfolded.

Optionally, at least two slits are arranged at the extending end of the outer pipe along the length direction to form at least two split parts, external threads are arranged on the outer surfaces of the split parts, pipe sleeves are mounted on the split parts in a threaded manner, conical internal threads are arranged in the inner cavities of the pipe sleeves, the split parts can be screwed down, and the edges of the outer pipe can be covered.

The utility model provides a three-leg folding stool, wherein each supporting tube is respectively hinged with a supporting piece, the supporting tubes can rotate relative to the supporting pieces, the axes of rotating shafts of the supporting tubes are distributed in an equal central symmetry manner, the folding is realized when the supporting tubes rotate to be in a mutually parallel state, and the using state is realized when the supporting tubes rotate to be in an inclined state to be in a maximum position; the support seat surfaces are respectively fixed at the top ends of the support tubes; each supporting tube comprises an inner tube and an outer tube which are nested with each other, and the inner tube can telescopically slide relative to the outer tube, so that the length of the whole supporting tube is changed; under the user state, the inner tube is outwards stretched out, and under fold condition, the inner tube inwards retracts, under the circumstances that the guarantee user state has sufficient length, reduces the whole size of folding the state of accomodating, can reduce the size after folding effectively, portable more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the three-legged foldable stool of the present invention;

FIG. 2A is a schematic view of the support member and three support tubes in cooperation with one another;

FIG. 2B is an enlarged view of a portion of the circle of FIG. 2A;

FIGS. 3A to 3C are a schematic view of the support tube in a normal use state, a schematic view of the support tube in a folded state, and a schematic view of the inner tube retracted, respectively;

FIG. 4A is a schematic structural view of a support tube;

fig. 4B is a partial cross-sectional view of the circled portion of fig. 4A.

The figure includes:

the support piece 1, three support tubes 2, an inner tube 21, an outer tube 22, a connecting piece 221, a spring pin base 23, a spring pin head 24, a spring pin spring 25, a sole 26, a tube sleeve 27 and a support seat surface 3.

Detailed Description

The core of the utility model is to provide a three-leg folding stool which can rotate and fold, can realize retraction, has smaller volume after being folded and improves the portability.

In order to make those skilled in the art better understand the technical solution of the present invention, the three-leg foldable stool of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic view showing the overall structure of the three-leg foldable stool of the present invention; fig. 2A is a schematic view of the support member 1 and three support tubes 2 fitted to each other; the three-leg folding stool comprises a supporting piece 1, three supporting tubes 2 and a supporting seat surface 3, wherein the supporting tubes 2 play a supporting role, the supporting piece 1 plays a connecting role, and the supporting seat surface 3 is in contact with a human body to provide support. The support seat surface 3 is a flexible cloth surface structure and can deform along with the expansion or the folding of the support tube 2.

Each support tube 2 is hinged to the support member 1, the support tubes 2 can rotate relative to the support member 1, a rotating shaft between each support tube 2 and the support member 1 extends horizontally, and the support tubes 2 can rotate between a vertical state and an inclined state. When the supporting tubes 2 are mutually folded to be vertical, the supporting tubes 2 are mutually parallel to realize folding and storage; in the use state, the support tube 2 rotates to the inclined state, and the support seat surface 3 is in the flat state at the moment and can be used for a human body to sit.

The axes of the rotating shafts of the supporting tubes 2 are distributed in an equal central symmetry way, and the heights of all the parts are consistent after the supporting tubes are unfolded; the support seat surfaces 3 are respectively fixed at the top ends of the support tubes 2, and when the support tubes 2 are rotated and unfolded, the support seat surfaces 3 are used for people to sit; the supporting piece 1 keeps the supporting pipes 2 in a gathered state, the supporting seat surface 3 bears the weight of a human body and transmits the weight to the supporting pipes 2, and the bottom ends of the supporting pipes 2 are in contact with the ground to support the human body.

Each support tube 2 comprises an inner tube 21 and an outer tube 22 nested inside each other, the inner tube 21 can slide telescopically relative to the outer tube 22, and the inner tube 21 can be fixed in position relative to the outer tube 22 when being extended. Fig. 3A to 3C are respectively a schematic view of the support tube 2 in a normal use state, a schematic view of the support tube 2 in a folded state, and a schematic view of the inner tube 21 after retraction; under the normal use state, the inner tube 21 extends out of the outer tube 22, keeps the extending state and is fixed, the length of the supporting tube 2 is increased, the contact range with the ground is larger, and the stability of the support is stronger. When not in use, the support tube 2 is folded together and the inner tube 21 is retracted within the outer tube 22, further reducing the folded volume.

On the basis of any one of the above technical solutions and their combination, as shown in fig. 2B, a partial enlarged view of the circle frame portion in fig. 2A is shown; the support member 1 of the utility model is provided with mounting through holes, each support tube 2 is inserted into one mounting through hole, the support tube 2 is supported by the inner wall of the mounting through hole to limit the inclination angle, the mounting through hole of the support member 1 is provided with an inclined inner wall, when the support tube 2 is in an inclined state in normal use, the outer surface of the support tube 2 can be contacted with the inner wall of the mounting through hole to provide support, and the maximum inclination angle of the support tube 2 is limited.

In particular, the outer tube 22 of the utility model is hinged to the support 1, the inner tube 21 not being in contact with the support 1.

Referring to fig. 2B, a U-shaped connecting piece 221 is fixedly disposed on the outer side of the tube wall of the outer tube 22, and the connecting piece 221 is provided with an opening for inserting the rotating shaft and is matched with the supporting member 1 to realize hinging. The connecting piece 221 is formed by two side walls and a bottom surface into a U-shaped groove structure, the bottom surface of the connecting piece 221 is welded and fixed with the outer side of the pipe wall of the outer pipe 22, and through holes are respectively formed in the two side walls of the connecting piece 221 and used for inserting the hinge shaft.

The three-legged folding stool of the utility model can have two specific forms, the first: the lower end of the outer pipe 22 is hinged to the support piece 1, the inner pipe 21 can extend downwards, the bottom end of the inner pipe 21 is in contact with the ground, and the top end of the outer pipe 22 is connected with the support seat surface 3; this structure is also the structure shown in the drawings of the present invention.

The second structure is as follows: the upper end of the outer pipe 22 is hinged to the support piece 1, the inner pipe 21 can extend upwards, the bottom end of the outer pipe 22 is in contact with the ground, and the top end of the inner pipe 21 is connected with the support seat surface 3; this structure is not shown in the drawings, but the specific principle of the two structures is identical, except for the difference in direction, i.e. the support 1 and the support tube 2 are oriented upside down and the support seat surface 3 is transformed into connection with the inner tube 21.

On the basis of any of the above technical solutions and their combination, as shown in fig. 4A, it is a schematic structural diagram of the support tube 2, and fig. 4B is a partial cross-sectional view of the circular frame portion in fig. 4A; the inner tube 21 of the present invention has a pin base 23 attached to the inner cavity thereof, and the pin base 23 is fixed to the inner tube 21 and inserted into the inner tube 21. The latch base 23 is slidably mounted with a latch head 24, and the latch head 24 can slide relative to the latch base 23 in a direction perpendicular to the side wall of the inner tube 21 as indicated by the double-headed arrow in fig. 4B; an elastic pin spring 25 is arranged between the elastic pin head 24 and the elastic pin base 23, and the elastic pin spring 25 can push a part of the elastic pin head 24 out of the inner tube 21 and extend into a positioning hole formed in the outer tube 22 to realize telescopic positioning.

At least two positioning holes are formed in the wall of the outer tube 22 in the longitudinal direction, so that the inner tube 21 can be fixed at different extending positions.

The sole 26 is installed at the bottom end of the support tube 2, and in the state that the support tube 2 is obliquely unfolded, the sole 26 is in contact with the ground in a fitting manner, so that a larger contact area is provided, and a more stable support effect is provided.

Preferably, at least two slits are arranged at the extending end of the outer tube 22 along the length direction to form at least two split parts, wherein the extending end refers to the extending end of the inner tube 21; the outer surface of the split is provided with external threads, the split is provided with a pipe sleeve 27 in a threaded manner, the inner cavity of the pipe sleeve 27 is provided with conical internal threads, the taper is small, the internal threads of the pipe sleeve 27 are in threaded fit with the external threads of the split, the split can be screwed tightly, so that the inner pipe 21 is clamped, and the stability of connection between the inner pipe 21 and the outer pipe 22 is further provided through friction; and the pipe sleeve 27 covers the edge of the outer pipe 22 to enhance the aesthetic appearance.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The three-leg folding stool is characterized by comprising a supporting piece (1), three supporting tubes (2) and a supporting seat surface (3), wherein each supporting tube (2) is hinged to the supporting piece (1), the supporting tubes (2) can rotate relative to the supporting piece (1), and the supporting tubes (2) can be parallel to each other and folded or obliquely supported; the axes of the rotating shafts of the supporting tubes (2) are distributed in an equal central symmetry way; the support seat surfaces (3) are respectively fixed at the top ends of the support tubes (2);

each support tube (2) comprises an inner tube (21) and an outer tube (22) which are nested with each other, the inner tube (21) can telescopically slide relative to the outer tube (22), and the inner tube (21) can be fixedly positioned relative to the outer tube (22) when being extended.

2. A tripod folding stool as claimed in claim 1, wherein said support members (1) are provided with mounting through holes, each of said support tubes (2) being inserted in one of said mounting through holes, said support tubes (2) being supported by the inner wall of the mounting through holes to define an inclination angle.

3. A tripod folding stool according to claim 2, wherein said outer tube (22) is hinged to said support (1).

4. The tripod folding stool according to claim 3, wherein a U-shaped connecting piece (221) is fixedly arranged on the outer side of the tube wall of the outer tube (22), and the connecting piece (221) is provided with an opening for inserting a rotating shaft and is matched with the support piece (1) to realize hinging.

5. The tripod folding stool according to claim 4, wherein the lower end of the outer tube (22) is hinged to the support (1), the inner tube (21) can be extended downwards, the bottom end of the inner tube (21) is in contact with the ground, and the top end of the outer tube (22) is connected to the support seating surface (3).

6. A tripod folding stool according to claim 4, in which the upper end of the outer tube (22) is hinged to the support (1), the inner tube (21) being able to project upwards, the bottom end of the outer tube (22) being in contact with the ground and the top end of the inner tube (21) being connected to the support seating surface (3).

7. The tripod folding stool as claimed in any one of claims 1 to 6, wherein a latch base (23) is mounted in an inner cavity of the inner tube (21), a latch head (24) is slidably mounted on the latch base (23), a latch spring (25) is disposed between the latch head (24) and the latch base (23), and the latch spring (25) can push a part of the latch head (24) out of the inner tube (21) and extend into a positioning hole formed in the outer tube (22) to realize telescopic positioning.

8. The tripod foldable stool as claimed in claim 7, wherein at least two positioning holes are provided on the wall of the outer tube (22) in the longitudinal direction.

9. The tripod folding stool as claimed in claim 7, wherein a sole (26) is mounted at the bottom end of the support tube (2), and the sole (26) is in abutting contact with the ground in a state where the support tube (2) is obliquely unfolded.

10. The tripod folding stool as claimed in claim 7, wherein the protruding end of the outer tube (22) is provided with at least two slits along the length direction to form at least two split parts, the outer surface of the split part is provided with external threads, a tube sleeve (27) is installed on the split part in a threaded manner, and the inner cavity of the tube sleeve (27) is provided with conical internal threads, so that the split part can be screwed down and the edge of the outer tube (22) can be covered.