CN210591896U

CN210591896U - Folding seat for railway vehicle

Info

Publication number: CN210591896U
Application number: CN201921209753.8U
Authority: CN
Inventors: 何中法; 张静
Original assignee: Changzhou Baiyidar Railway Carpart Co ltd
Current assignee: Changzhou Baiyidaer Rail Passenger Car Fitting Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-22
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to a folding seat for rail vehicle, including base constitution, back constitution, pivot, axle sleeve, torsional spring and gas spring, the base constitution is installed in the lower part of back constitution through the pivot, axle sleeve and torsional spring suit are in the pivot, and the both ends of torsional spring all offset with the base constitution, one end of gas spring articulates on the base constitution, and the other end is fixed on the axle sleeve; the backrest is characterized in that mounting lugs are arranged on two sides of the lower portion of the backrest assembly, limiting plates are fixedly connected to the mounting lugs, limiting holes are formed in the limiting plates, and two ends of the rotating shaft are respectively mounted in the limiting holes. The utility model discloses have the damping force, can not make a sound when the upset resets, avoid the seat to damage.

Description

Folding seat for railway vehicle

Technical Field

The utility model relates to a rail vehicle is with folding seat belongs to the rail transit vehicle part.

Background

The folding seat of the rail transit is an indispensable component in a rail transit carriage, and is used for people to take and relieving the fatigue of passengers. The traditional seat has two types, namely a fixed type seat and a folding type seat, wherein the fixed type seat is characterized in that a backrest is integrated with a base, the folding type seat is characterized in that the backrest is hinged with the base, and the base can be turned and folded when no one sits on the seat. After being folded, the space of the carriage can be expanded, and more passengers can be accommodated. The traditional turnover folding seat has no resistance when being turned, can directly turn in place, can make a great sound, and is easy to damage the seat.

Disclosure of Invention

An object of the utility model is to provide a have damping force, can not make a sound when the upset resets, avoid the folding seat for rail vehicle of seat damage.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a rail vehicle is with folding seat chair, includes that base component, back are constituteed, pivot, axle sleeve, torsional spring and gas spring, the lower part of constituteing at the back through the pivot is constituteed to the base, axle sleeve and torsional spring suit are in the pivot, and the both ends of torsional spring all constitute with the base and offset, the one end of gas spring articulates on the base is constituteed, and the other end is fixed on the axle sleeve.

Preferably, both sides of the lower part of the backrest assembly are provided with mounting lugs, the mounting lugs are fixedly connected with limiting plates, limiting holes are formed in the limiting plates, and two ends of the rotating shaft are respectively mounted in the limiting holes.

Preferably, the base assembly is provided with a mounting seat, and one end of the gas spring is hinged to the mounting seat.

Preferably, the base assembly comprises a hollow structure formed by fixing the first seat plate and the second seat plate, and the gas spring is positioned in the hollow structure.

Preferably, the backrest assembly comprises a back plate conforming to the arc shape of the back of a human body, and the upper part and the lower part of the back plate are provided with fixing convex columns.

After the structure is adopted, the utility model discloses an constitute with the back group including the base is constituteed to connect through the pivot is articulated, the torsional spring suit provides the power that the base group reset in the pivot. And the air spring provides damping force with this power, avoids the base to constitute the speed uncontrollable in the reset process to make a sound, improved the life of seat.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

fig. 4 is a cross-sectional view C-C of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrated in the accompanying drawings.

In this embodiment, as shown in fig. 1-4, a folding seat for rail vehicle includes that base component 1, back component 2, pivot 3, axle sleeve 4, torsional spring 5 and gas spring 6, base component 1 is installed in the lower part that the back component 2 through pivot 3, axle sleeve 4 and torsional spring 5 suit are on pivot 3, and the both ends of torsional spring 5 all constitute 1 with the base and offset, the one end of gas spring 6 articulates on base component 1, and the other end is fixed on axle sleeve 4.

Referring to fig. 3, both sides of the lower portion of the backrest assembly 2 are provided with mounting protrusions 21, the mounting protrusions 21 are fixedly connected with limiting plates 22, the limiting plates 22 are provided with limiting holes 23, and both ends of the rotating shaft 3 are respectively mounted in the limiting holes 23. When the rotating shaft 3 rotates to a certain position, the base assembly 1 is in a parallel state, and the stop plane 31 of the rotating shaft 3 is blocked with the stop plane of the limiting hole 23.

Referring to fig. 4, the base assembly 1 is provided with a mounting seat 11, and one end of the gas spring 6 is hinged to the mounting seat 11. One end of the gas spring 6 needs to be jointed on the base assembly 1, so that an installation seat 11 needs to be arranged on the base assembly 1, and one end of the gas spring 6 is jointed on the installation seat 11 through a bolt.

Referring to fig. 2, the base assembly 1 includes a hollow structure formed by fixing a first seat plate 12 and a second seat plate 13, and the gas spring 6 is located in the hollow structure. To accommodate the gas spring 6, it is not exposed to the outside of the seat, improving the aesthetic appearance, and also reducing the overall weight.

Referring to fig. 2, the backrest assembly 2 comprises a back plate 7 conforming to the arc shape of the back of a human body, and the upper part and the lower part of the back plate 7 are provided with fixing convex columns 8. Backplate 7 accords with human back radian, and is more comfortable when taking to fix through fixed projection 8, guarantee the installation firmness.

Referring to fig. 1, the present invention relates to a seat installed in a railway vehicle compartment, which is a foldable seat that can be folded by itself when no one is seated. Constitute 1 and back including the base and constitute 2, the base is constituteed 1 and is articulated on the back is constituteed 2 through pivot 3, because torsional spring 5's effect, the base is constituteed 1 and can is folded by oneself, and in folding moreover, air spring 6 provides damping force, guarantees folding sound can not appear, causes the damage of seat.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A folding seat for a rail vehicle, characterized in that: constitute (2), pivot (3), axle sleeve (4), torsional spring (5) and gas spring (6) including base, back, the lower part of constituteing (2) at the back is installed through pivot (3) in base constitution (1), axle sleeve (4) and torsional spring (5) suit are on pivot (3), and the both ends of torsional spring (5) all constitute (1) counterbalance with the base, the one end of gas spring (6) articulates on base constitution (1), and the other end is fixed on axle sleeve (4).

2. The folding seat for a railway vehicle according to claim 1, characterized in that: the utility model discloses a chair backrest, including pivot (3), the lower part both sides that the back is constituteed (2) all are equipped with installation lug (21), fixedly connected with limiting plate (22) on installation lug (21), are equipped with spacing hole (23) on limiting plate (22), install respectively in spacing hole (23) at the both ends of pivot (3).

3. The folding seat for a railway vehicle according to claim 1, characterized in that: the base is composed and is provided with a mounting seat (11) on the base (1), and one end of the air spring (6) is hinged on the mounting seat (11).

4. The folding seat for a railway vehicle according to claim 1, characterized in that: the base assembly (1) comprises a hollow structure formed by fixing a first seat plate (12) and a second seat plate (13), and the gas spring (6) is positioned in the hollow structure.

5. The folding seat for a railway vehicle according to claim 1, characterized in that: the backrest assembly (2) comprises a back plate (7) conforming to the arc shape of the back of a human body, and the upper part and the lower part of the back plate (7) are provided with fixing convex columns (8).