CN211882829U

CN211882829U - Chair with detachable seat

Info

Publication number: CN211882829U
Application number: CN202020222324.0U
Authority: CN
Inventors: 吴新云
Original assignee: Foshan Leadcom Seating Co ltd
Current assignee: Foshan Leadcom Seating Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-11-10
Anticipated expiration: 2030-02-27

Abstract

The utility model provides a seat, concretely relates to teaching facility field. The chair comprises a support, a seat board and a seat board resetting mechanism. The seat plate resetting mechanism comprises a supporting seat fixedly arranged on the front side of the supporting seat, an installation seat fixedly arranged on the bottom surface of the seat plate, an air spring and a first torsion spring horizontally sleeved on the supporting seat; the rear end of the mounting seat is hinged to the supporting seat; one end of the gas spring is hinged to the supporting seat, and the other end of the gas spring is hinged to the mounting seat; one end of the first torsion spring is fixedly arranged on the supporting seat, and the other end of the first torsion spring is fixedly arranged on the mounting seat. The utility model discloses an effect of air spring and first torsional spring can realize that bedplate automatic re-setting and speed of restoration are steady, have simple structure unique, the practicality is strong, reliable durable advantage.

Description

Chair with detachable seat

Technical Field

The utility model belongs to the technical field of teaching facility, concretely relates to seat.

Background

The desk and the chair are indispensable teaching facilities in the teaching process. At present, most of desks and chairs used in schools are independent (or called combined desks and chairs), and most of the seat plate and the desk plate are fixed mechanisms and cannot be adjusted. With the development of the technology and the improvement of teaching requirements, a seat with a foldable and foldable seat plate is developed and applied to a class, especially a university classroom. In the classroom, in order to save space, with the structural design that seat board and table adopt collapsible storage, for vacating more space so that students walk in between the seat.

Wherein, the structural design of bedplate generally adopts gravity return mechanism, torsional spring etc. however, the bedplate returns the normal position in-process not steady enough, and the easy accidental injury people, and along with the extension of live time, the bedplate effect that resets reduces to some extent, and the durability is poor.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art, an object of the present invention is to provide a chair, which is unique, novel, simple, beautiful, stable, reliable and durable, and can realize the automatic reset of the seat board and the stable technical purpose of the reset speed.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a chair comprises a support and a seat board; it still includes: a seat plate resetting mechanism; the seat plate resetting mechanism comprises a supporting seat fixedly arranged on the front side of the supporting seat, an installation seat fixedly arranged on the bottom surface of the seat plate, an air spring and a first torsion spring horizontally sleeved on the supporting seat; the rear end of the mounting seat is hinged to the supporting seat; one end of the gas spring is hinged to the supporting seat, and the other end of the gas spring is hinged to the mounting seat; one end of the first torsion spring is fixedly arranged on the supporting seat, and the other end of the first torsion spring is fixedly arranged on the mounting seat.

In the seat, the supporting seat is horizontally provided with a first shaft rod, one end of the air spring is hinged to the first shaft rod, and one end of the first torsion spring is connected with the first shaft rod.

In the seat, the supporting seat is horizontally provided with a second shaft rod, the second shaft rod penetrates through a sliding sleeve, the first torsion spring is sleeved on the sliding sleeve, and the rear end of the mounting seat is rotatably arranged on the second shaft rod.

The seat in, the mount pad is equipped with joint portion, the other end and the joint portion of first torsional spring meet.

In the seat, the sliding sleeve is made of nylon glue.

In the seat, a protective cover is arranged on the bottom surface of the seat plate; the protective cover wraps the mounting seat and is fixedly connected to the seat plate.

Has the advantages that:

the utility model provides a seat, unique novelty, it is brief pleasing to the eye, stability is strong, and is reliable durable, can realize bedplate automatic re-setting and the steady technical purpose of speed that resets.

The utility model designs a special bedplate canceling release mechanical system of structure produces the mating reaction through air spring and torsional spring, leaves the back at the human body, and automatic re-setting, reply speed is steady, has stable durable characteristics.

Drawings

Fig. 1 is a perspective view of a seat provided by the present invention.

Fig. 2 is a schematic structural view of a seat plate resetting mechanism in a seat plate using state in the seat provided by the present invention.

Fig. 3 is a schematic structural view of the seat board reset mechanism in the seat provided by the present invention when the seat board is folded and stored.

Fig. 4 is a perspective view of the mounting seat of the seat provided by the present invention.

Fig. 5 is a perspective view of the seat plate of the seat of the present invention in use.

Fig. 6 is a perspective view of the seat provided by the present invention, wherein the mounting seat is connected to the protection cover.

Fig. 7 is a perspective view of the structure of the auxiliary support in the seat provided by the present invention.

Fig. 8 is a schematic structural view of a sliding sleeve in the seat provided by the present invention.

Detailed Description

The utility model provides a seat, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the present invention provides a chair, which includes a support 1 and a seat plate 2; in addition, the seat further includes a seat plate return mechanism 5.

As shown in fig. 1, 2 and 3, the seat plate returning mechanism 5 includes a supporting seat 51 fixed to the front side of the supporting seat 1 by a bolt, a mounting seat 52 fixed to the bottom surface of the seat plate 2 by a bolt, a gas spring 53, and a first torsion spring 54 horizontally sleeved on the supporting seat 51. The rear end of the mounting seat 52 is hinged to the supporting seat 51. One end of the gas spring 53 is hinged to the supporting seat 51, and the other end of the gas spring 53 is hinged to the mounting seat 52. One end of the first torsion spring 54 is fixedly arranged on the supporting seat 51, and the other end of the first torsion spring 54 is fixedly arranged on the mounting seat 52.

Fig. 2 shows the structure of the seat plate 2 in the use state. At this time, the torsion spring 54 is deformed by the action force of the mounting seat 52, and the gas spring 53 is in the piston rod retraction state, and the bottom surface of the mounting seat 52 is supported by the top surface of the supporting seat 51, so that the mounting seat 52 cannot continuously swing downwards, and the user can be supported stably and reliably, and the pressure bearing capacity is strong.

Fig. 3 shows the structure of the seat plate 2 in the non-use state (folded storage). After the human body leaves, the torsion spring 54 returns to its original shape, and applies a force to the mounting seat 52 to drive the mounting seat 52 to swing upward with the seat plate 2. Meanwhile, the piston rod of the air spring 53 extends slowly, so that the swinging speed of the mounting seat 52 is stable and not urgent, the automatic resetting stability of the seat plate 2 is ensured, and people cannot be injured by mistake.

As shown in fig. 2 and 3, in particular, the support seat 51 is horizontally provided with a first shaft 55, one end of the gas spring 53 is hinged to the first shaft 55, and one end of the first torsion spring 54 is connected to the first shaft 55. In the embodiment, the first shaft 55 is fixedly disposed on the supporting seat 51, so that the gas spring 53 is sleeved on the first shaft 55 and can rotate relative to the first shaft 55, and a clamping point is provided for one end of the first torsion spring 54, which is convenient in assembly, disassembly and maintenance.

In this embodiment, two ends of the first shaft 55 are respectively provided with an inner screw hole, and the first shaft is horizontally fixed on the supporting seat 51 by a screw connection method.

As shown in fig. 2, 3 and 4, the mounting seat 52 is provided with a catching portion 521, and the other end of the first torsion spring 54 is in contact with the catching portion 521. When one end of the first torsion spring 54 is engaged with the circumferential surface of the first shaft 55, the other end of the first torsion spring 54 is engaged with the engaging portion 521 of the mounting seat 52, and when the mounting seat 52 rotates to a horizontal position, the first torsion spring 54 deforms. The mounting seat 52 is further provided with a connecting portion 522, and the piston rod of the gas spring 53 is fixedly connected to the connecting portion 522 by a bolt attachment method.

As shown in fig. 2, 4 and 8, specifically, the supporting seat 51 is horizontally provided with a second shaft 57, the second shaft 57 is provided with a sliding sleeve 59 in a penetrating manner, the first torsion spring 54 is sleeved on the sliding sleeve 59, and a connecting portion 523 formed downward at the rear end of the mounting seat 52 is rotatably provided on the second shaft 57.

In this embodiment, the sliding sleeve 59 is made of nylon glue. One end of the second shaft lever 57 is provided with an external thread, and is connected with a nut in a matching manner, so that the second shaft lever 57 is fixedly connected to the mounting seat 52. The second shaft lever 57 not only realizes the rotational connection between the support base 51 and the mounting base 52, but also provides a mounting position for the first torsion spring 54, so that the installation is convenient, and the material is saved.

The first shaft rod 55 and the second shaft rod 57 are both made of metal material such as iron, a sliding sleeve 59 made of nylon glue is arranged between the first torsion spring 54 and the second shaft rod 57, the first torsion spring 54 is directly sleeved on the sliding sleeve, and the first torsion spring 54 is prevented from rotating relative to the rotating second shaft rod 57, so that the first torsion spring 54 is prevented from being abraded.

As shown in fig. 1, 2, 5, 6 and 7, a protection cover 58 is further fixedly connected to the bottom surface of the seat plate 2, and the protection cover 58 wraps the mounting seat 52 to protect the gas spring and the first torsion spring, etc. and to provide an aesthetic appearance. Furthermore, the protective cover 58 is provided with an opening 581 suitable for passing the connecting ends of the supporting base 51 and the mounting base 52, so that the protective cover 58 can rotate along with the seat plate 2 relative to the supporting base 51. In addition, an auxiliary support 56 is fixedly connected to the support base 51, and the auxiliary support 56 is fixed to the support base 51 by bolts. The auxiliary support 56 has an arc-shaped surface 562 corresponding to the bottom surface of the protective cover 58 to prevent the protective cover 58 from being obstructed. In addition, in the present embodiment, the top of the auxiliary holder 56 is provided with a support surface 561 for supporting the seat plate 2 in the reset state. After the bedplate resets automatically, the trailing flank of bedplate contacts with holding surface 561, avoids the bedplate to continue to turn over, fold under the artificial application of force condition to cause the injury to first torsional spring, air spring.

To sum up, the utility model provides a seat, unique novelty, it is brief pleasing to the eye, stability is strong, and is reliable durable, can realize bedplate automatic re-setting and the steady technical purpose of reset speed.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. A chair comprises a support and a seat board; it is characterized by also comprising: a seat plate resetting mechanism; the seat plate resetting mechanism comprises a supporting seat fixedly arranged on the front side of the supporting seat, an installation seat fixedly arranged on the bottom surface of the seat plate, an air spring and a first torsion spring horizontally sleeved on the supporting seat; the rear end of the mounting seat is hinged to the supporting seat; one end of the gas spring is hinged to the supporting seat, and the other end of the gas spring is hinged to the mounting seat; one end of the first torsion spring is fixedly arranged on the supporting seat, and the other end of the first torsion spring is fixedly arranged on the mounting seat.

2. The seat according to claim 1, wherein the support base is horizontally provided with a first shaft, one end of the gas spring is hinged to the first shaft, and one end of the first torsion spring is connected with the first shaft.

3. The seat according to claim 1, wherein the supporting seat is horizontally provided with a second shaft rod, a sliding sleeve is arranged on the second shaft rod in a penetrating manner, the first torsion spring is sleeved on the sliding sleeve, and the rear end of the mounting seat is rotatably arranged on the second shaft rod.

4. The seat according to claim 1, wherein the mounting seat is provided with a clamping portion, and the other end of the first torsion spring is connected with the clamping portion.

5. The seat according to claim 3, wherein the sliding sleeve is made of nylon glue.

6. The seat according to claim 1, wherein the bottom surface of the seat plate is provided with a protective cover; the protective cover wraps the mounting seat and is fixedly connected to the seat plate.