CN113317655A

CN113317655A - Seat with three-folding structure

Info

Publication number: CN113317655A
Application number: CN202110752503.4A
Authority: CN
Inventors: 徐加洪
Original assignee: Dongguan Master Kids Products Co ltd
Current assignee: Dongguan Master Kids Products Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-08-31

Abstract

The invention discloses a seat with a three-folding structure, which comprises: the folding mechanism comprises a folding joint, supporting legs and an upper connecting pipe, wherein the supporting legs comprise a front supporting leg and a rear supporting leg, and the upper end of the front supporting leg is connected with the upper end of the rear supporting leg in a pivoting manner through the folding joint; the lower end of the upper connecting pipe is connected with the upper end of the rear supporting leg in a pivoting manner through a vehicle folding joint. According to the technical scheme, the folding joint is arranged in the seat, the front supporting leg, the rear supporting leg and the upper connecting pipe are folded in a three-folding mode through the folding joint, the three-folding structure is firstly applied to the seat, so that the seat can be folded more conveniently and practically, the space utilization is better, the occupied space is smaller, the seat can be stably occupied after being folded, the seat is convenient to store, and a child can be placed on the upper side for sleeping after being folded and laid flat. The technical scheme can be applied to dining chairs, seats or stools, and solves the technical problems that the folding structure of the existing foldable seat is not perfect enough, and the occupied space is large after folding.

Description

Seat with three-folding structure

Technical Field

The invention relates to the technical field of furniture, in particular to a seat with a three-folding structure.

Background

The foldable seats (chairs and stools) are used more in real life, wherein most of the seats (chairs and stools) are used when people have a rest or have a dinner, the used environment space is too small according to different use environments, the seats (chairs and stools) are placed aside when not needed to be used at ordinary times, and the seats (chairs and stools) are generally stored in the convenient places after being folded to reduce the occupied space. The seats (chairs and stools) in the prior art are folded, but the folding structure is not perfect, the number of folded parts is only two, and the technical problem of large occupied space exists after the seats are folded.

Disclosure of Invention

The invention mainly aims to provide a seat with a three-folding structure, and aims to solve the technical problems that the folding structure of the existing foldable seat is not perfect enough, and the occupied space is large after the seat is folded.

In order to achieve the above object, the present invention provides a seat with a three-folding structure, comprising:

a vehicle collection joint;

the supporting legs comprise a front supporting leg and a rear supporting leg, and the upper end of the front supporting leg is pivotally connected with the upper end of the rear supporting leg through a vehicle folding joint; and

the lower end of the upper connecting pipe is connected with the upper end of the rear supporting leg in a pivoting manner through a vehicle folding joint.

Furthermore, the vehicle folding joint comprises a joint seat, a first folding part and a second folding part, wherein the first folding part and the second folding part are arranged on the joint seat and can rotate relative to the joint seat.

Furthermore, the first folding part and the second folding part respectively and correspondingly comprise a first main body part, a second main body part and a connecting arm formed by extending from the main body parts, the connecting arm comprises a first connecting arm and a second connecting arm, the first connecting arm extends into the pipe orifice of the upper connecting pipe and is fixedly connected with the upper connecting pipe, and the second connecting arm extends into the pipe orifice of the front supporting leg and is fixedly connected with the upper connecting arm.

Furthermore, the first main body part and the second main body part are respectively and correspondingly provided with a first arc-shaped groove and a second arc-shaped groove, and a first locking hole and a second locking hole are respectively and correspondingly arranged on one side in the grooves of the first arc-shaped groove and the second arc-shaped groove.

Further, the first and second body portions are circular to form a concentric folding structure between the front supporter, the rear supporter and the upper connection pipe.

The seat further comprises a locking device and an unlocking device, wherein the locking device is arranged on the folding joint and used for locking the front supporting leg and the upper connecting pipe when the seat is unfolded; and the unlocking device is used for unlocking the front supporting leg and the upper connecting pipe.

Furthermore, the locking device comprises a vehicle retracting pull rod, a return spring and a locking pin are arranged in the vehicle retracting pull rod, and the locking pin can be positioned in the locking hole when the front supporting leg and the upper connecting pipe are locked and can not move between positions in the locking hole when the front supporting leg and the upper connecting pipe are unlocked.

Furthermore, the unlocking device comprises a vehicle folding control key arranged on the upper connecting pipe, the vehicle folding control key is in driving connection with the locking device through a steel rope or an intermediate piece, and the vehicle folding control key can be pressed to drive the steel rope or the intermediate piece to drive the locking pin to move away from the first locking hole and the second locking hole and fall into the first arc-shaped groove and the second arc-shaped groove, so that the locking pin can be movably arranged in the arc-shaped grooves of the first arc-shaped groove and the second arc-shaped groove.

Further, the pull rod of returning the car to the garage and knock off is equipped with U type bayonet socket, and two card arms of U type bayonet socket correspond respectively and are equipped with first via hole and the second via hole that can supply the locking tip to pass, and when being in the locking state, the locking tip wears to locate in proper order between first via hole, first locking hole, second locking hole and the second via hole, and when being in the unblock state, the locking tip wears to locate in proper order between first via hole, first arc wall, second arc wall and the second via hole.

Furthermore, the folding bicycle further comprises a seat arranged on the upper connecting pipe, a dinner plate arranged on the seat and a pedal arranged on the folding joint.

According to the technical scheme, the folding joint is arranged in the seat, the front supporting leg, the rear supporting leg and the upper connecting pipe are folded in a three-folding mode through the folding joint, the three-folding structure is firstly applied to the seat, so that the seat can be folded more conveniently and more practically, the space utilization is better, the occupied space is smaller, the seat can stably occupy after being folded and is convenient to store, in addition, the child can be put on the upper side for sleeping after being folded and laid flat, the technical scheme of the three-folding structure can be applied to dining chairs, seats or stools, and the technical problems that the folding structure of the existing foldable seat is not perfect, and the occupied space is large after being folded are solved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is an exploded view of the stowing joint of the present invention;

fig. 4 is a perspective view of the first folding member and the second folding member in cooperation according to the present invention;

FIG. 5 is a cross-sectional view of the support foot, rear support foot and upper connecting tube of the present invention in combination.

Wherein the figures include the following reference numerals:

the folding joint 1, the joint seat 11, the first folding member 12, the first main body portion 122, the first arc-shaped groove 1221, the first locking hole 1222, the first connecting arm 123, the second folding member 13, the second main body portion 132, the second arc-shaped groove 1321, the second locking hole 1322, the second connecting arm 133, the supporting leg 2, the front supporting leg 21, the rear supporting leg 22, the upper connecting tube 3, the locking device 4, the folding pull rod 41, the return spring 411, the locking pin 412, the first through hole 413, the second through hole 414, the folding control key 51, the seat 611, the dinner plate 612, the pedal 613 and the reinforcing rod 200.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as … …, which is up, down, left, right, front, back, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are provided in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship, motion condition, etc. of the components at a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a seat with a three-folding structure.

This thing to sit on with three folding structures includes: the folding mechanism comprises a folding joint 1, supporting legs 2 and an upper connecting pipe 3; wherein the content of the first and second substances,

the supporting legs 2 comprise front supporting legs 21 and rear supporting legs 22, and the upper ends of the front supporting legs 21 and the upper ends of the rear supporting legs 22 are in pivotable connection through the vehicle folding joints 1; and

and the lower end of the upper connecting pipe 3 is connected with the upper end of the rear supporting leg 22 in a pivoting way through the vehicle folding joint 1.

The folding joint 1 comprises a joint seat 11, a first folding part 12 and a second folding part 13 which are arranged on the joint seat 11 and can rotate relative to the joint seat 11.

The first and second receiving

members

12 and 13 respectively include a first main body 122 and a second main body 132 and a connecting arm extending from the main bodies, the connecting arm includes a first connecting arm 123 and a second connecting arm 133, the first connecting arm 123 extends into the opening of the upper connecting tube 3 and is connected and fixed therewith, and the second connecting arm 133 extends into the opening of the front supporting leg 21 and is connected and fixed therewith.

The first main body portion 122 and the second main body portion 132 are respectively and correspondingly provided with a first arc-shaped slot 1221 and a second arc-shaped slot 1321, and a first locking hole 1222 and a second locking hole 1322 are respectively and correspondingly arranged on one side of the first arc-shaped slot 1221 and the second arc-shaped slot 1321.

The first and

second body parts

122 and 132 have a circular shape such that a concentric folding structure is formed between the front and rear supporting

legs

21 and 22 and the upper connection pipe 3.

The folding seat further comprises a locking device 4 and an unlocking device, wherein the locking device 4 is arranged on the folding joint 1, and the locking device 4 is used for locking the front supporting leg 21 and the upper connecting pipe 3 when the seat is unfolded; and an unlocking means for unlocking the front supporting leg 21 from the upper connecting pipe 3.

Specifically, the locking device 4 includes a retraction rod 41, a return spring 411 and a locking pin 412 are provided in the retraction rod 41, and the locking pin 412 is movable between a position where it is located in the locking hole when the front support leg 21 is locked with the upper connection pipe 3 and a position where it is not located in the locking hole when the front support leg 21 is unlocked with the upper connection pipe 3.

Specifically, the unlocking device comprises a folding control key 51 installed on the upper connecting pipe 3, the folding control key 51 is in driving connection with the locking device 4 through a steel rope or an intermediate piece, and pressing the folding control key 51 can drive the steel rope or the intermediate piece to drive the locking pin 412 to move away from the first locking hole 1222 and the second locking hole 1322 and fall into the first arc-shaped groove 1221 and the second arc-shaped groove 1321, so that the locking pin 412 can move in the arc-shaped grooves of the first arc-shaped groove 1221 and the second arc-shaped groove 1321.

The car collecting pull rod 41 is provided with a U-shaped bayonet, two clamping arms of the U-shaped bayonet are respectively and correspondingly provided with a first through hole 413 and a second through hole 414 through which the locking pin 412 can pass, when the car collecting pull rod is in a locking state, the locking pin 412 sequentially penetrates through the first through hole 413, the first locking hole 1222, the second locking hole 1322 and the second through hole 414, and when the car collecting pull rod is in an unlocking state, the locking pin 412 sequentially penetrates through the first through hole 413, the first arc-shaped groove 1221, the second arc-shaped groove 1321 and the second through hole 414.

Further comprises a seat 611 arranged on the upper connecting pipe 3, a dinner plate 612 arranged on the seat 611 and a pedal 613 arranged on the folding joint 1.

In order to improve the structural stability of the sitting device, a reinforcing rod 200 is arranged between the left and right supporting legs 2.

The material of the components can be made of wood material, metal material, plastic material, etc. according to the market demand, in this embodiment, the seat 611, the dinner plate 612, and the pedal 613 are all made of plastic material. The shape of the seat 611 of the seat can be varied to satisfy different aesthetic tastes and hobbies, in this embodiment, an acceptable egg-shaped seat 611 is adopted, and the shape of the upper connecting plate 67 can also adopt different appearance designs. The supporting legs 2 and the upper connecting pipes 3 can be round pipes or square pipes, and the square pipes are adopted in the embodiment.

When the invention is folded, the folding control keys 51 of the two unlocking devices are pressed or pushed simultaneously, the steel rope (not shown) or the intermediate piece is driven to overcome the elasticity of the return spring 411, the folding pull rod 41 is driven to move upwards, the locking pin 412 falls into the first arc-shaped groove 1221 and the second arc-shaped groove 1321 from the locking position, the first folding piece 12 and the second folding piece 13 can rotate relative to the joint seat 11, and at the moment, the upper connecting pipe 3 and the front supporting leg 21 can respectively rotate towards the rear supporting leg 22 to approach each other to realize three-folding.

The preferred embodiment of the present invention is a dining chair, and the technical solution of the three-folding structure can also be applied to a stool, and both direct and indirect applications to stools are included in the scope of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A seat with a three-folding structure is characterized by comprising:

a vehicle collection joint;

2. A seat having a three-fold folding structure as claimed in claim 1, wherein the folding joint comprises a joint base, a first folding member and a second folding member mounted on the joint base and capable of rotating relative to the joint base.

3. A seat having a three-fold folding structure as claimed in claim 2, wherein the first folding member and the second folding member respectively include a first main portion and a second main portion and a connecting arm extending from the main portions, the connecting arm includes a first connecting arm and a second connecting arm, the first connecting arm extends into the pipe opening of the upper connecting pipe and is connected and fixed therewith, and the second connecting arm extends into the pipe opening of the front supporting leg and is connected and fixed therewith.

4. A seat with a three-fold folding structure as claimed in claim 3, wherein the first main body portion and the second main body portion are respectively and correspondingly provided with a first arc-shaped groove and a second arc-shaped groove, and a first locking hole and a second locking hole are respectively and correspondingly arranged on one side of the first arc-shaped groove and the second arc-shaped groove.

5. A seat having a three-fold-folding structure as claimed in claim 4, wherein the first body portion and the second body portion have a circular shape so as to form a concentric circle folding structure between the front supporting leg, the rear supporting leg and the upper connecting tube.

6. A seat with a three-folding structure as claimed in claim 4 or 5, further comprising a locking device and an unlocking device, wherein the locking device is arranged at the folding joint and is used for locking the front supporting leg and the upper connecting tube when the seat is unfolded; and the unlocking device is used for unlocking the front supporting leg and the upper connecting pipe.

7. A seat having a three-fold folding structure as claimed in claim 6, wherein the locking device comprises a retracting pull rod, a return spring and a locking pin are provided in the retracting pull rod, the locking pin is movable between a position where it is located in the locking hole when the front supporting leg and the upper connecting tube are locked and a position where it is not located in the locking hole when the front supporting leg and the upper connecting tube are unlocked.

8. A seat having a three-fold folding structure as claimed in claim 7, wherein the unlocking device comprises a folding control key installed on the upper connecting tube, the folding control key is drivingly connected to the locking device through a steel cable or an intermediate member, and pressing the folding control key drives the steel cable or the intermediate member to move the locking pin away from the first locking hole and the second locking hole and fall into the first arc-shaped groove and the second arc-shaped groove, so that the locking pin can move in the arc-shaped grooves of the first arc-shaped groove and the second arc-shaped groove.

9. A seat with a three-folding structure as claimed in claim 8, wherein the folding pull rod has a U-shaped bayonet, two arms of the U-shaped bayonet are respectively and correspondingly provided with a first through hole and a second through hole for passing the locking pin, when in the locking state, the locking pin sequentially passes through the first through hole, the first locking hole, the second locking hole and the second through hole, and when in the unlocking state, the locking pin sequentially passes through the first through hole, the first arc-shaped groove, the second arc-shaped groove and the second through hole.

10. A seat having a three-fold folding structure as claimed in claim 1, further comprising a seat mounted on the upper connecting tube, a tray mounted on the seat, and a foot pedal mounted on the folding joint.