CN214963930U

CN214963930U - Folding chair and folding support thereof

Info

Publication number: CN214963930U
Application number: CN202121318660.6U
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: 2021-12-03
Anticipated expiration: 2030-06-01
Also published as: CN215382619U; 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 a folding chair field especially relates to a folding chair and 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 to-be-solved technical problem of the utility model is: in order to solve the problem that the folding chair is high in unfolding difficulty, the utility model provides a folding chair and a folding bracket thereof.

The utility model provides a technical scheme that its technical problem adopted is: 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 bracket body comprises two second support mechanisms, each second support mechanism comprises a first support rod and a second support rod, and the first support rods and the second support rods are mutually crossed and hinged;

the lower ends of the first supporting rod and the second supporting rod are respectively fixed with a second connector, and the foot disc and the second connector are hinged at a supporting hinge point;

a first limiting block is arranged on the outer wall of the second connector in a protruding mode, and a limiting wall capable of blocking the first limiting block is arranged on the foot disc;

the cooperation sets up first stopper and spacing wall can with the bottom terminal surface of foot dish with support contained angle restriction between the face of foot dish is the acute angle.

As a preference, the first and second liquid crystal compositions are,

the bracket body further comprises a second linkage mechanism and a third linkage mechanism;

the second linkage mechanism comprises two second linkage rods which are crossed with each other and are hinged;

the two second supporting mechanisms are arranged on two sides of the second linkage mechanism and the third linkage mechanism in a mirror image mode;

the second linkage rod and the first support rod are hinged to the upper part of the second linkage rod and the upper part of the first support rod;

the lower end of the second linkage rod and the second supporting rod are hinged to the lower part of the second supporting rod;

the third linkage mechanism comprises two third linkage rods, and the two third linkage rods are mutually crossed and hinged;

the upper end of the third linkage rod and the second support rod are hinged to the upper part of the second support rod;

the lower end of the third linkage rod and the first support rod are hinged to the lower part of the first support rod.

The utility model also provides a folding chair,

the folding bracket comprises a folding bracket as claimed in any one of claims 1-2, wherein a cushion, a backrest and armrests are arranged on the folding bracket.

The beneficial effects of the utility model are that, 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 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 foot dish the bottom terminal surface of foot dish when subaerial, makes placing that folding chair can be steady subaerial, and the user need not carry out extra manual adjustment to the foot dish.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of a folding stand.

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

Fig. 3 is a schematic view of a folded stent after being folded.

Fig. 4 is a schematic structural view of another folding bracket.

Fig. 5 is a schematic structural diagram of a first embodiment of a foldable bracket according to the present invention.

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 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 drawings are exemplary only for the purpose of explaining the present invention, and should not 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 only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed 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, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning 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 figures 1-3, the utility model provides a folding bracket, which 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.

The stent body further comprises at least one locking mechanism, each locking mechanism corresponding 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.

A first connecting element 8 is arranged between the foot disc 6 and the base frame rod 2042, and the first connecting element 8 is an elastic object, such as a spring or a stretch cord. 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, the other folding bracket is different from the folding bracket described above in that the first connecting member 8 is not disposed between the foot plate 6 and the bottom frame rod 2042, but a limiting rod 603 is protruded from a side of the foot plate 6 close to the bottom frame rod 2042, and a bending portion 6031 protruding toward the outer side of the foot plate 6 is disposed at the 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.

Fig. 5 shows a first embodiment of the foldable support of the present invention, which includes a support body and a foot plate 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.

The utility model also provides a folding chair, including the embodiment one of folding support as above, be provided with cushion, back and handrail on the folding support.

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 invention. 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, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. 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:

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