CN217917924U

CN217917924U - Seat back linkage mechanism and train seat with same

Info

Publication number: CN217917924U
Application number: CN202220840799.5U
Authority: CN
Inventors: 陈超; 李名誉; 石磊
Original assignee: Shandong Jiatai Traffic Equipment Co ltd
Current assignee: Shandong Jiatai Traffic Equipment Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-11-29
Anticipated expiration: 2032-04-13

Abstract

The utility model relates to a train seat technical field, in particular to seat back of body link gear and train seat that has link gear. Including back skeleton, bedplate, slider, bearing fixing base and rotating turret, the lower extreme of back skeleton is equipped with the bedplate, and the front side below both ends of bedplate are equipped with the slider respectively, and the medial surface of every slider all is equipped with the spout, the bearing setting in the spout and with spout clearance fit, the bearing still installs on the bearing fixing base, the bearing fixing base is fixed on the rotating turret. The utility model has simple structure, convenient assembly and low manufacturing and maintenance cost; the seat board can be tilted backwards along with the backrest to move forwards in front of the seat and raise a certain angle, so that the comfort of the seat is improved.

Description

Seat back linkage mechanism and train seat with same

Technical Field

The utility model relates to a train seat technical field, in particular to seat back of body link gear and train seat that has link gear.

Background

The train runs back and forth on a track to realize the forward and backward movement. The seat cushion of the existing train passenger room seat is generally fixed, only the backrest can be bent backwards, the legs cannot be effectively supported, and part of passengers may have bad physical reactions when sitting for a long time.

The seat-back linkage mechanism of the existing train seat is quite complex in structure and high in manufacturing cost, so that the seat-back linkage mechanism cannot be popularized in train passenger room seats.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art is not enough, provides a simple structure, slides smooth and easy seat back of the body link gear, still provides a train seat that has this seat back of the body link gear simultaneously.

The utility model discloses a realize through following technical scheme: the utility model provides a seat back link gear that train seat used, its characterized in that, includes back skeleton, bedplate, slider, bearing fixing base and rotating turret, the lower extreme of back skeleton is equipped with the bedplate, and the front side below both ends of bedplate are equipped with the slider respectively, and the medial surface of every slider all is equipped with the spout, the bearing setting in the spout and with spout clearance fit, the bearing still installs on the bearing fixing base, the bearing fixing base is fixed on the rotating turret.

Preferably, the linkage mechanism further comprises a connecting member, and the rear side of the seat plate is connected with the backrest framework directly or through the connecting member.

Preferably, when the seat board is directly connected with the backrest framework, two ends of the rear side of the seat board are attached to the inner side of the backrest framework; when the seat board is connected with the backrest framework through the connecting piece, two ends of the rear side of the seat board are attached to the inner side of the connecting piece.

The utility model also provides a train seat, including the train seat body, its characterized in that, above-mentioned seat back of the body link gear is installed to the train seat body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, convenient assembly and low manufacturing and maintenance cost; the seat board can be tilted backwards along with the backrest to move forwards in front of the seat and raise a certain angle, so that the comfort of the seat is improved.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a partial structural schematic diagram of the present invention;

fig. 4 is a schematic view of an embodiment of the linkage mechanism of the present invention;

fig. 5 is a schematic view of another embodiment of the linkage mechanism of the present invention;

FIG. 6 is a schematic view of the slider structure of the present invention;

in the attached drawing, 1 backrest framework, 2 connecting pieces, 3 seat boards, 4 sliding blocks, 41 sliding grooves, 5 bearings, 6 bearing fixing seats, 7 rotating frames, 8 screws, 9 shaft sleeves and 10 rivets.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the following embodiments are combined to further explain the technical solutions of the present invention.

As shown in fig. 1 to 6, a seat back link gear for train seats, including back skeleton 1, bedplate 3, slider 4, bearing 5, bearing fixing base 6 and rotating turret 7, the lower extreme of back skeleton 1 is equipped with bedplate 3, the front side below both ends of bedplate 3 are equipped with slider 4 respectively, the medial surface of every slider 4 all is equipped with the spout, bearing 5 sets up in the spout and with spout clearance fit, slider 4 can slide from top to bottom along bearing 5, bearing 5 still installs on bearing fixing base 6, bearing 5 can freely roll, bearing fixing base 6 passes through rivet 10 to be fixed on rotating turret 7.

The linkage mechanism also comprises a connecting piece 2, and the rear side of the seat board 3 is directly connected with the backrest framework 1 or is connected with the backrest framework 1 through the connecting piece 2.

The lower end of the backrest framework 1 is provided with a threaded hole, and the connecting piece 2 or the seat board 3 is in threaded connection with the backrest framework 1.

As shown in fig. 4, in order to improve the structure of the conventional train seat, a connecting member 2 is used to connect the seat plate 3 and the backrest frame 1. The upper end and the lower end of the connecting piece 2 are respectively provided with a mounting hole, and the upper end of the connecting piece passes through the mounting hole and the threaded hole of the backrest framework 1 through a screw 8 to be connected with the backrest framework 1; the rear side of the seat board 3 is also provided with a mounting hole, the two ends of the rear side of the seat board 3 are attached to the inner side of the lower end of the connecting piece 2, the lower end of the connecting piece 2 is connected with the rear side of the seat board 3 through a screw 8 and a shaft sleeve 9 in a clearance fit manner, and the rear side of the seat board 3 can rotate around the central axis of the shaft sleeve 9.

Utilize connecting piece 2 to connect bedplate 3 and back skeleton 1, structural strength is high, long service life, and the cost of manufacture is low, rotates effectually, can be used for changing the fixed seatpad of current train into seat back link gear.

As shown in fig. 5, the connecting member 2 can be eliminated when a new train seat is manufactured, at this time, both ends of the rear side of the seat plate 3 are attached to the inner side of the backrest frame 1, and the seat plate 3 is directly rotatably fitted with the backrest frame 1 through the screw 8 and the shaft sleeve 9.

As an optimized structure, the structure has higher strength and simpler structure, and the manufacturing cost is saved.

The upper end of the sliding block 4 of the seat back linkage mechanism of the utility model is provided with threads, the front side of the seat plate 3 is provided with a mounting hole, and the front side of the seat plate 3 is in threaded connection with the sliding block 4 by a screw 8; the inner side surface of the sliding block 4 is provided with a sliding chute which is in clearance fit with the bearing 5, and the sliding block 4 slides along the bearing 5, so that the seat plate 3 is tilted backwards along with the backrest and moves forwards towards the front of the seat and is lifted by a certain angle; the utility model discloses a spout and 5 clearance fit occupation space of bearing are little, and the cost of manufacture is low, and it is effectual to slide.

The upper end of the bearing fixing seat 6 of the seat back linkage mechanism of the utility model is provided with a thread, and the bearing 5 is provided with an external thread rod which is in threaded connection with the bearing fixing seat 6; the lower end of the bearing fixing seat 6 is provided with a mounting hole, and the bearing fixing seat is fixed on the rotating frame 7 through a rivet 10 penetrating through the mounting hole.

The utility model also provides a train seat, including the train seat body, its characterized in that, foretell seat back of the body link gear is installed to this train seat body.

Other technical features than those described in the specification are known to those skilled in the art.

Claims

1. The utility model provides a seat back link gear and have link gear's train seat, its characterized in that, includes back skeleton (1), bedplate (3), slider (4), bearing (5), bearing fixing base (6) and rotating turret (7), the lower extreme of back skeleton (1) is equipped with bedplate (3), and the front side below both ends of bedplate (3) are equipped with slider (4) respectively, and the medial surface of every slider (4) all is equipped with spout (41), bearing (5) set up in spout (41) and with spout (41) clearance fit, bearing (5) still install on bearing fixing base (6), and bearing fixing base (6) are fixed on rotating turret (7).

2. A seat back linkage mechanism and a train seat with the linkage mechanism according to claim 1, characterized in that the linkage mechanism further comprises a connecting piece (2), and the rear side of the seat plate (3) is connected with the back frame (1) directly or is connected with the back frame (1) through the connecting piece (2).

3. The seat back linkage mechanism and the train seat with the same as claimed in claim 2, wherein when the seat plate (3) is directly connected with the back frame (1), two ends of the rear side of the seat plate (3) are attached to the inner side of the back frame (1); when the seat board (3) is connected with the backrest framework (1) through the connecting piece (2), two ends of the rear side of the seat board (3) are attached to the inner side of the connecting piece (2).

4. The utility model provides a train seat, includes train seat body, its characterized in that: the train seat body is provided with the seat back linkage mechanism of any one of claims 1 to 3.