CN215382619U

CN215382619U - Folding chair and folding support thereof

Info

Publication number: CN215382619U
Application number: CN202121315499.7U
Authority: CN
Inventors: 陈礼斌; 孔庆磊; 孙柯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2022-01-04
Anticipated expiration: 2030-06-01
Also published as: CN214963930U; CN215304316U

Abstract

The utility model provides a folding chair and a folding bracket thereof, wherein the folding bracket comprises a bracket body and a foot disc; the lower end of the bracket body is hinged with the foot disc; after the support body is unfolded, the end face of the bottom of the foot disc is suitable for being attached to the face supporting the foot disc. This kind of folding support is including setting up the foot dish at the lower extreme of support body, and the contained angle between the bottom terminal surface of foot dish and the face of supporting the foot dish after the support body expandes completely is the acute angle, and the user places folding support and can laminate with the face of supporting the foot dish the bottom terminal surface of foot dish when subaerial, makes placing subaerial that folding chair can be stable, and the user need not carry out extra manual adjustment to the foot dish.

Description

Folding chair and folding support thereof

Technical Field

The utility model relates to the field of folding chairs, in particular to a folding chair and a folding support thereof.

Background

The folding chair is very popular for people due to the characteristic of smaller volume after being folded. In the prior art, in order to protect the chair legs of the folding chair better, some folding chairs select to hinge a foot plate at the tail ends of the chair legs. However, after the folding chair is unfolded, sometimes the user needs to adjust the orientation of the bottom end face of the leg plate to stably place the folding chair on the ground, which increases the unfolding difficulty of the folding chair and affects the use experience of the user.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to solve the problem that the folding chair is difficult to unfold, the utility model provides a folding chair and a folding bracket thereof to solve the problem.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a folding bracket comprises a bracket body and a foot disc; the lower end of the bracket body is hinged with the foot disc;

the support body comprises an inclined strut mechanism, the inclined strut mechanism comprises an inclined strut and a bottom frame rod, a second connector is fixedly arranged at the lower end of the inclined strut, one end of the bottom frame rod is hinged with the second connector through a rotating hinge shaft at a rotating hinge point, the foot disc is hinged with the second connector at a supporting hinge point through a supporting hinge shaft, and the rotating hinge shaft is parallel to or coaxial with the supporting hinge shaft;

elastic first connecting pieces are arranged between the foot disc and the underframe rods, and the first connecting pieces can limit the included angle between the bottom end face of the foot disc and the face supporting the foot disc to an acute angle.

Preferably, one end of the first connecting piece and the foot disc are connected to a first fixing point, and the other end of the first connecting piece and the underframe rod are connected to a second fixing point;

in the process that the distance between the first fixing point and the second fixing point is increased to the stretching length threshold of the first connecting piece, an included angle between the bottom end face of the foot disc and the bottom frame rod is always an acute angle, and the stretching length threshold is the minimum length of the first connecting piece when the first connecting piece is elastically deformed.

Preferably, the bracket body comprises a first linkage mechanism and a first supporting mechanism;

the first linkage mechanism comprises two first linkage rods which are mutually crossed and hinged;

the two first supporting mechanisms are arranged on two sides of the first linkage mechanism in a mirror image mode, and each first supporting mechanism comprises an upright rod, a sliding sleeve, a first connecting head and two inclined supporting mechanisms;

in one first supporting mechanism, the sliding sleeve is slidably sleeved on the vertical rods, the upper end of one first linkage rod is hinged with the sliding sleeve, the lower end of the other first linkage rod and the lower end of the vertical rod are hinged to the lower part of the other first linkage rod, and the lower end of the other first linkage rod is hinged with the first connecting head;

the upper end of the inclined stay bar is hinged with the sliding sleeve, and the other end of the bottom frame bar is hinged with the first connecting head.

Preferably, the locking device further comprises at least one locking mechanism, and each locking mechanism corresponds to one sliding sleeve;

the locking mechanism comprises a locking pin, and a circular ring buckle is fixed at one end of the locking pin; the vertical rod is provided with a through pin hole;

when the first linkage mechanism and the two first supporting mechanisms are completely unfolded, the through pin hole is located at the upper part of the sliding sleeve, and the locking pin is inserted into the through pin hole.

The utility model also provides a folding chair which comprises the folding bracket, wherein the folding bracket is provided with a cushion, a backrest and armrests.

The folding support has the advantages that the folding support comprises the foot disc arranged at the lower end of the support body, an included angle between the bottom end face of the foot disc and the face of the supporting foot disc is an acute angle after the support body is completely unfolded, when a user places the folding support on the ground, the bottom end face of the foot disc can be attached to the face of the supporting foot disc, the folding chair can be placed on the ground stably, and the user does not need to perform additional manual adjustment on the foot disc.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of a first embodiment of a folding bracket of the utility model.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of a folded bracket according to a first embodiment of the folded bracket of the utility model.

Fig. 4 is a schematic view of a folding stand.

Fig. 5 is a schematic view of a folding stand.

In the figure, 1, a first linkage mechanism, 101, a first linkage rod, 2, a first support mechanism, 201, an upright rod, 202, a sliding sleeve, 203, a first connector, 204, a diagonal support mechanism, 2041, a diagonal support rod, 2042, a chassis rod, 3, a second linkage mechanism, 301, a second linkage rod, 4, a third linkage mechanism, 401, a third linkage rod, 5, a second support mechanism, 501, a first support rod, 502, a second support rod, 6, a foot disc, 601, a chassis, 602, a wing surface, 603, a limit rod, 6031, a bending part, 604, a limit position, 7, a locking pin, 701, a circular buckle, 8, a first connecting piece, 9, a second connector, 901 and a first limit block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 3, the first embodiment of the folding bracket provided by the utility model comprises a bracket body and a foot disc 6.

The bracket body comprises a first linkage mechanism 1 and two first support mechanisms 2.

The first linkage 1 comprises two first linkage rods 101, and the two first linkage rods 101 are mutually crossed and hinged.

The two first supporting mechanisms 2 are arranged on two sides of the first linkage mechanism 1 in a mirror image mode. Each first support mechanism 2 includes an upright rod 201, a sliding sleeve 202, a first connecting head 203, and two diagonal support mechanisms 204. The sliding sleeve 202 is slidably sleeved on the upright rods 201, the upper end of one first linkage rod 101 is hinged to the sliding sleeve 202, the lower end of the other first linkage rod 101 and the lower end of the upright rod 201 are hinged to the lower part of the other first linkage rod 101, and the lower end of the other first linkage rod 101 is hinged to the first connecting head 203.

The diagonal bracing mechanism 204 comprises a diagonal bracing rod 2041 and an underframe rod 2042, and the upper end of the diagonal bracing rod 2041 is hinged to the sliding sleeve 202. The lower end of the diagonal rod 2041 is fixedly provided with a second connector 9, and one end of the underframe rod 2042 is hinged to the second connector 9 through a rotating hinge shaft. In this embodiment, the second connector 9 is provided with a slot and a hinge slot, the lower end of the inclined strut 2041 is fixedly inserted into the slot, and one end of the underframe rod 2042 extends into the hinge slot and is hinged to the second connector 9.

The other end of the chassis rod 2042 is hinged to the first joint 203.

In this embodiment, the stent body further comprises at least one locking mechanism, and each locking mechanism corresponds to one sliding sleeve 202.

The locking mechanism comprises a locking pin 7, a through pin hole suitable for the locking pin 7 to be inserted is formed in the upright rod 201, and the through pin hole is a through hole penetrating through the upright rod 201. After the first linkage mechanism 1 and the two first support mechanisms 2 are completely unfolded, the sliding sleeve 202 slides to the lower part of the through pin hole, and a user can insert the locking pin 7 into the through pin hole. After the locking pin 7 is inserted into the through-pin hole, the sliding sleeve 202 cannot slide upwards along the upright rod 201 due to the existence of the locking pin 7, so that the first linkage mechanism 1 and the first support mechanism 2 cannot be folded.

A ring fastener 701 is fixed to one end of the locking pin 7. The ring buckle 701 can not only facilitate the pulling and inserting of the locking pin 7, but also prevent the locking pin 7 from being inserted too deeply and falling into the inner cavity of the upright rod 201.

The foot disc 6 is hinged with the second connector 9 at the hinge point of the support, and the foot disc 6 comprises a bottom disc 601. In this embodiment, two sides of the bottom plate 601 are protruded upward to form a fin surface 602, and the two fin surfaces 602 are hinged to the supporting hinge point through the supporting hinge shaft and the second connector 9.

In the present embodiment, a first connecting member 8 is disposed between the foot plate 6 and the bottom frame rod 2042, and the first connecting member 8 is an elastic object, such as a spring or an elastic rope. One end of the first connecting member 8 is connected to the foot plate 6 at a first fixing point, and the other end of the first connecting member 8 is connected to the chassis rod 2042 at a second fixing point.

Whenever the distance between the first and second fixing points increases to a value greater than the threshold stretching length of the first link 8, the first link 8 can be elastically deformed under the tensile force of the chassis 601 and the undercarriage rod 2042, and the threshold stretching length is the maximum length of the first link 8 when the elastic deformation does not occur. The stretched first link 8 enables the foot plate 6 to rotate about the rotation hinge shaft. In the unfolding process of the first linkage mechanism 1 and the two first support mechanisms 2, the included angle between the chassis rod 2042 and the bottom end surface of the chassis 601 is always smaller than 90 °.

When the first linkage mechanism 1 and the two first supporting mechanisms 2 are completely unfolded, the underframe rod 2042 is in a state of being parallel to the ground to be contacted by the foot plate 6, so that the included angle between the bottom end surface of the chassis 601 and the underframe rod 2042 is consistent with the included angle between the bottom end surface of the chassis 601 and the ground. Because the bottom terminal surface and the ground of chassis 601 are the acute angle, so when the user place folding support subaerial after, the bottom terminal surface of chassis 601 can laminate with ground, folding support can be steady place subaerial.

As shown in fig. 4, unlike the first embodiment, a first connecting member 8 is not disposed between the leg plate 6 and the bottom frame rod 2042, but a limiting rod 603 is protruded from a side of the leg plate 6 close to the bottom frame rod 2042, and a bending portion 6031 protruding toward an outer side of the leg plate 6 is disposed at an upper end of the limiting rod 603. A limiting hole is formed in the bottom frame rod 2042, the limiting rod 603 is inserted into the limiting hole and can shuttle in the limiting hole, the bending part 6031 is located inside the bottom frame rod 2042, and the bending part 6031 cannot pass through the limiting hole.

In the unfolding process of the first linkage mechanism 1 and the two first supporting mechanisms 2, the limiting rod 603 is pulled out by the foot disc 6, and when the bending part 6031 is tightly attached to the limiting hole, the included angle between the bottom end surface of the chassis 601 and the bottom frame rod 2042 is smaller than 90 degrees. At this time, no matter how the first linkage mechanism 1 and the two first support mechanisms 2 are continuously unfolded, the included angle between the bottom end surface of the chassis 601 and the chassis rod 2042 cannot be continuously increased due to the limitation of the inner wall of the chassis rod 2042 on the bending part 6031.

As shown in fig. 5, the folding bracket comprises a bracket body and a foot disc 6.

The stand body includes a second linkage 3, a third linkage 4, and two second support mechanisms 5.

The second linkage mechanism 3 includes two second linkage bars 301, and the two second linkage bars 301 cross each other and are hinged.

The third linkage 4 includes two third linkage bars 401, and the two third linkage bars 401 are crossed with each other and are hinged.

Two second support mechanisms 5 are provided in mirror image on both sides of the second and third links 3 and 4.

The second support mechanism 5 includes a first support bar 501 and a second support bar 502, and the first support bar 501 and the second support bar 502 are crossed with each other and hinged. The lower ends of the first support bar 501 and the second support bar 502 are fixed with a second connector 9. In this embodiment, the second connector 9 is provided with a slot, and the lower end of the first support rod 501 and the lower end of the second support rod 502 are fixedly inserted into the slot.

The second linkage rod 301 and the first support rod 501 are hinged to the upper portion of the second linkage rod 301 and the upper portion of the first support rod 501. The lower end of the second linkage rod 301 is hinged to the lower portion of the second support rod 502 together with the second support rod 502.

The upper end of the third link rod 401 and the second support rod 502 are hinged to the upper portion of the second support rod 502. The lower end of the third link 401 is hinged to the lower portion of the first support rod 501 with the first support rod 501.

The lower end of the first support bar 501 and the lower end of the second support bar 502 are both provided with a foot disc 6. In this embodiment, the foot plate 6 includes a bottom plate 601 and two upward-protruding wing surfaces 602 on two sides of the bottom plate 601, and the two wing surfaces 602 are hinged to the support hinge point with the second connection head 9. The outer wall of the second connector 9 is provided with a first limiting block 901 in a protruding manner, and the chassis 601 is provided with a limiting wall capable of blocking the first limiting block 901.

The foot disc 6 can rotate around the support hinge point relative to the second connector 9, and the first limiting block 901 can limit the rotation of the foot disc 6 when abutting against the limiting wall 604. When the second linkage 3, the third linkage 4 and the two second support mechanisms 5 are fully deployed, the bottom end surface of the chassis 601 forms an acute angle with the ground. Therefore, when a user places the foldable support on the ground, the bottom end face of the chassis 601 can be attached to the ground, and the foldable support can be stably placed on the ground.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A folding bracket is characterized by comprising a bracket body and a foot disc; the lower end of the bracket body is hinged with the foot disc;

2. A folding stand according to claim 1 wherein:

one end of the first connecting piece and the foot disc are connected to a first fixing point, and the other end of the first connecting piece and the underframe rod are connected to a second fixing point;

3. A folding stand according to claim 2 wherein:

the bracket body comprises a first linkage mechanism and a first supporting mechanism;

4. A folding stand according to claim 3 wherein:

the locking mechanism is arranged on the sliding sleeve and comprises at least one locking mechanism, and each locking mechanism corresponds to one sliding sleeve;

5. A folding chair, which is characterized in that:

the folding bracket comprises a folding bracket as claimed in any one of claims 1 to 4, wherein a cushion, a backrest and armrests are arranged on the folding bracket.