WO2019090809A1

WO2019090809A1 - Collapsible chair

Info

Publication number: WO2019090809A1
Application number: PCT/CN2017/111979
Authority: WO
Inventors: 王永维
Original assignee: 深圳市随行科技有限公司
Priority date: 2017-11-13
Filing date: 2017-11-21
Publication date: 2019-05-16
Also published as: CN107902014A

Abstract

A collapsible chair comprises a base (1) and a seat (2). The base (1) and the seat (2) are hinged with a first connecting rod (3) and a second connecting rod (4) therebetween, the second connecting rod being arranged in parallel with the first connecting rod (4). The first connecting rod (3) and the second connecting rod (4) have an equal length. The first connecting rod (3) or the second connecting rod (4) is hinged with a locking rod (5). A free end of the locking rod (5) is movably mounted on the seat (2). A locking device is provided between the free end of the locking rod (5) and the seat (2). During use as a chair, the locking device fixes the free end of the locking rod (5) to the seat (2). The included angle between a line connecting A and B and the locking rod (5) is greater than 0° and less than 180°, with A being a hinge connection point of the locking rod (5) to the first connecting rod (3), and B being a hinge connection point of the first connecting rod (3) to the seat (2). During use, the locking device fixes the free end of the locking rod (5) to the seat (2), and the locking rod (5), the second connecting rod (4) or the first connecting rod (3), and the seat (2) form a sturdy triangular support structure, thereby providing reliable support.

Description

Folding seat

Technical field

The present invention relates to a folding seat.

Background technique

Electric scooters have been developed for quite a long time, which is a good means of transportation for the elderly or those with limited mobility and those who need to travel short distances. Folding electric cars is a favorite of modern young people. Because they are easy to store and transport. The reliability and convenience of folding is one of the criteria for measuring user experience satisfaction.

However, the existing folding car seat, due to the structural design defects, although the folding function can be achieved, the appearance is relatively rough and not aesthetically pleasing. Folding operations are also cumbersome.

Summary of the invention

In order to make up for the above deficiencies, the present invention provides a compact and reliable folding seat that is easy to operate, compact in structure, and deployed when used as a seat.

The technical solution of the present invention is: a folding seat comprising a base and a seat plate, a first link and a second link disposed in parallel with the first link are hinged between the base and the seat plate The first connecting rod and the second connecting rod are of equal length, and the first connecting rod or the second connecting rod is hinged with a locking rod, and the free end of the locking rod is movably mounted on the seat plate a locking device is disposed between the free end of the locking rod and the seat plate. When used as a seat, the locking device fixes the free end of the locking rod on the seat plate, and when the locking rod is hinged at the first When the connecting rod is connected, the angle between the connecting line between A and B and the locking rod is greater than 0° and less than 180°, and A is the hinge point of the locking rod on the first connecting rod, B is a hinge point of the first link and the seat plate; when the lock bar is hinged on the second link, the angle between the line between A and B and the lock bar is greater than 0° and less than 180°, A is a hinge point of the locking lever on the second link, and B is a hinge point of the second link and the seat plate.

As a preferred technical solution, the free end of the locking rod is hinged with a sliding block, and the seat plate is provided with a guiding device that cooperates with the sliding block, and the sliding block moves under the guiding of the guiding device. The locking device includes a locking structure that locks the position of the slider.

As a preferred technical solution, the guiding device includes a guiding slot disposed parallel to the seat plate. The sliding block is movably mounted in the guiding groove.

As a preferred technical solution, the locking structure includes a jack disposed on the sliding block, and the mounting plate is movably mounted with a latch that is inserted into the jack at an outer end, and the inner end of the latch is disposed The guide block is movably mounted in the chute, and the locking structure further comprises a driving device for driving the chute movement, the driving device drives the chute to move back and forth, and the chute drives the pin through the guiding block to insert Jack or exit jack.

As a preferred technical solution, the chute is disposed on a lower surface of the guide plate, the guide plate is movably mounted under the seat plate, and the first end of the chute is adjacent to the first side of the seat plate a second end of the chute away from the first side of the seat plate, a guiding device cooperating with the sliding block is disposed on the first side; moving the guiding plate, the guiding block is located When the first end of the chute is inserted, the pin is inserted into the jack, and when the guiding block is located at the second end of the chute, the latch is withdrawn from the jack.

In a preferred embodiment, the locking structure further includes a latch guide sleeve fixedly mounted to the seat plate, the latch being movably mounted in the latch guide sleeve.

As a preferred technical solution, the driving device includes a handle mounted on the guide plate.

According to the above technical solution, a folding seat includes a base and a seat plate, and a first link and a second link disposed in parallel with the first link are hinged between the base and the seat plate. The first connecting rod and the second connecting rod are of equal length, and the first connecting rod or the second connecting rod is hinged with a locking rod, and the free end of the locking rod is movably mounted on the seat plate a locking device is disposed between the free end of the locking rod and the seat plate. When used as a seat, the locking device fixes the free end of the locking rod on the seat plate, and when the locking rod is hinged at the first When the connecting rod is connected, the angle between the connecting line between A and B and the locking rod is greater than 0° and less than 180°, and A is the hinge point of the locking rod on the first connecting rod, B is a hinge point of the first link and the seat plate; when the lock bar is hinged on the second link, the angle between the line between A and B and the lock bar is greater than 0° and less than 180°, A is a hinge point of the locking bar on the second link, B is a hinge point of the second link and the seat plate; when the locking device does not lock the lock bar on the seat plate 2, due to the One company The rod 3 and the second link 4 are arranged in parallel, the lengths of the first link 3 and the second link 4 are equal, and the first link and the second link form a parallelogram link structure, which can be folded. The utility model has the advantages of compact structure and convenient folding operation; in use, the locking device fixes the free end of the locking rod on the seat plate, and the locking rod forms a stable triangular support structure with the second connecting rod or the first connecting rod and the sitting plate, thereby realizing Reliable support.

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 embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic structural view of an embodiment of the present invention;

2 is a schematic view showing a folded state of an embodiment of the present invention;

Figure 3 is a bottom plan view of the seat plate of the embodiment of the present invention;

Figure 4 is a partial enlarged view of I in Figure 3.

Detailed ways

As shown in FIG. 1 to FIG. 4, a folding seat includes a base 1 and a seat plate 2, and a first link 3 is hinged between the base 1 and the seat plate 2 and is parallel to the first link 3 a second connecting rod 4, the first connecting rod 3 and the second connecting rod 4 are of equal length, and the first connecting rod 3 or the second connecting rod 4 is hinged with a locking rod 5, The free end of the locking bar 5 is movably mounted on the seat plate 2, and a locking device is provided between the free end of the locking bar 5 and the seat plate 2, when the locking bar is hinged to the first link When used as a seat, the locking device fixes the free end of the locking rod 5 to the seat plate 2, and the angle between the line between A and B and the locking rod 5 is greater than 0° and less than 180°. As shown in FIG. 1 , at this time, the locking bar forms a stable triangular support structure with the first link and the seat plate, wherein A is a hinge point of the locking bar 5 on the first link 3, and B is a hinge point of the first link 3 and the seat plate 2; when the lock lever is hinged to the second link, when used as a seat, the locking device fixes the free end of the lock bar to the seat plate 2, A and Between the connection between B and the locking lever 5 The angle of the angle is greater than 0° and less than 180°. At this time, the locking rod forms a stable triangular support structure with the second link and the seat plate, and A is a hinge point of the locking rod 5 on the second link 4 . B is a hinge point of the second link 4 and the seat plate 2. When the locking device does not lock the locking lever on the seat plate 2, since the first link 3 and the second link 4 are disposed in parallel, the lengths of the first link 3 and the second link 4 are equal, The first link and the second link form a parallelogram link structure, which can be folded, has a compact structure, and is convenient for folding operation.

As shown in FIG. 4, the free end of the locking bar 5 is hinged with a sliding block 6, and the seat plate 2 is provided with guiding means for cooperating with the sliding block 6, and the sliding block 6 is at the guiding device Under the guiding movement, the locking device comprises a locking structure that locks the position of the sliding block 6.

As a preferred solution, as shown in FIG. 1, the guiding device includes a setting parallel to the seat plate 2 The guide groove 7 is movably mounted in the guide groove 7. The slider moves along the guide groove 7.

Further, as shown in FIG. 4, the locking structure includes a jack disposed on the sliding block 6, and the seat plate 2 is movably mounted with a latch 8 having an outer end insertable into the jack. The inner end of the pin 8 is provided with a guiding block 13 which is movably mounted in the chute 9. The locking structure further comprises a driving device for driving the chute 9 to move the chute 9 back and forth. The chute 9 drives the latch 8 into the jack or exits the jack through the guiding block 13.

Preferably, as shown in FIG. 3 and FIG. 4, the chute 9 is disposed on a lower surface of the guide plate 10, and the guide plate 10 is movably mounted under the seat plate 2, and the first of the chutes 9 The end is adjacent to the first side of the seat plate 2, the second end of the chute 9 is away from the first side of the seat plate 2, and a guiding device cooperating with the sliding block is disposed at the first side The side of the guide plate 10 is moved. When the guide block is located at the first end of the chute 9, the pin 8 is inserted into the jack, and when the guide block is located at the second end of the chute 9, the pin 8 is withdrawn from the jack.

The locking structure further includes a pin guide sleeve 12 fixedly mounted to the seat plate 2, the pin 11 being movably mounted within the pin guide sleeve 12. The latch moves within the pin guide sleeve.

For ease of operation, the handle 11 is used as the driving device, and the driving device includes a handle 11 mounted on the guide plate. Pulling the handle 11 can drive the guide plate to move. As shown in Figure 4, pulling the guide plate in the direction of the arrow will cause the latch 8 to be inserted into the receptacle, and pushing the guide in a direction opposite the direction of the arrow will cause the latch to exit from the receptacle.

The basic principles, main features, and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is only described in the foregoing description and the description of the present invention, without departing from the spirit and scope of the invention. Various changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.

Claims

a folding seat, comprising: a base and a seat plate, wherein a first link and a second link disposed in parallel with the first link are hinged between the base and the seat plate, the first a length of the connecting rod and the second connecting rod are equal, a locking rod is hinged on the first connecting rod or the second connecting rod, and a free end of the locking rod is movably mounted on the seat plate, A locking device is disposed between the free end of the locking rod and the seat plate. When used as a seat, the locking device fixes the free end of the locking rod on the seat plate, and when the locking rod is hinged on the first link When the angle between the line between A and B and the locking rod is greater than 0° and less than 180°, A is the hinge point of the locking rod on the first link, and B is the first connection. The hinge point of the rod and the seat plate; when the lock rod is hinged on the second link, the angle between the line between A and B and the lock rod is greater than 0° less than 180°, A is The hinge point of the locking rod on the second link, and B is the hinge point of the second link and the seat plate.
A folding seat according to claim 1, wherein said free end of said locking lever is hinged with a sliding block, said seat plate being provided with guiding means for engaging said sliding block, said sliding block being The guiding device is moved downwardly, and the locking device includes a locking structure that locks the position of the sliding block.
The folding seat according to claim 2, wherein said guiding means comprises a guide groove disposed parallel to said seat plate, said slide block being movably mounted in said guide groove.
The folding seat according to claim 2, wherein said locking structure comprises a socket provided on said sliding block, said seat plate being movably mounted with an outer end insertable into said socket a latching block, the inner end of the latch is provided with a guiding block, the guiding block is movably mounted in the chute, the locking structure further comprises a driving device for driving the chute movement, and the driving device drives the chute to move back and forth, oblique The slot drives the latch into the jack or exits the jack through the guide block.
A folding seat according to claim 4, wherein said chute is disposed on a lower surface of said guide plate, said guide plate being movably mounted under said seat plate, said first end of said chute being adjacent a first end of the chute, a second end of the chute being away from the first side of the seat plate, and a guiding device cooperating with the sliding block is disposed on the first side; In the guide plate, when the guide block is located at the first end of the chute, the pin is inserted into the jack, and when the guide block is located at the second end of the chute, the pin exits the jack.
The folding seat according to claim 4, wherein said locking structure further comprises a latch guide sleeve fixedly mounted to said seat plate, said latch being movably mounted in said latch guide sleeve.
A folding seat according to claim 6 wherein said drive means comprises a handle mounted on said guide plate.