CN215793765U

CN215793765U - Foldable seat used on subway train

Info

Publication number: CN215793765U
Application number: CN202120159560.7U
Authority: CN
Inventors: 李小波; 张冬冬; 张�浩; 张程; 汪翔; 吴竑霖
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2022-02-11
Anticipated expiration: 2031-01-21

Abstract

The utility model relates to a foldable seat used on a subway train, which comprises a base, two first stand columns and two second stand columns, wherein the first stand columns are rotatably connected with the base through an adjusting mechanism; the adjusting mechanism comprises a rotating shaft, a clamping cylinder and a guide cylinder, wherein the rotating shaft is horizontally arranged, the clamping cylinder and the guide cylinder are arranged at two ends of the rotating shaft, inner cavities of the clamping cylinder, the rotating shaft and the guide cylinder are communicated, a U-shaped block is arranged in each inner cavity, openings are formed in the tops of the clamping cylinder and the guide cylinder, and a pressing block is arranged at the end part of an arm of the U-shaped block, which is positioned in the guide cylinder; the bottom of the U-shaped block is supported on the inner side walls of the clamping cylinder and the guide cylinder opposite to the opening through a pressure spring, and when the pressing block is pressed to the bottom by the pressure spring, the other end of the U-shaped block enters the clamping cylinder; a T-shaped groove matched with the clamping cylinder and the rotating shaft is arranged in the base, and the edge of the T-shaped groove is at least provided with two limiting grooves clamped with the end parts of the arms of the U-shaped block. Compared with the prior art, the utility model has the advantages of convenient operation and the like.

Description

Foldable seat used on subway train

Technical Field

The utility model relates to a subway seat, in particular to a foldable seat used on a subway train.

Background

The seat is made of aluminum alloy materials, has the characteristics of light weight, strength, corrosion resistance, no toxicity, high temperature resistance and the like, has long service life, is moisture-proof, has smooth surface, is easy to clean, meets the current requirements of green environmental protection, and meets the requirements of various occasions.

When taking the subway, for avoiding not having the seat and the discomfort that brings of standing for a long time, can carry the seat usually, the buffering of the inside setting of current seat is not enough for the comfort level of seat is relatively poor, and there is the problem that is difficult to the folding in seat simultaneously, and then influences the practicality of seat.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a foldable seat used on a subway train, which can conveniently realize angle locking through the structures of a U-shaped block, a pressing block, a pressure spring and a T-shaped groove, and further improve the convenience of folding the seat.

The purpose of the utility model can be realized by the following technical scheme:

a foldable seat used on a subway train comprises a base, two first stand columns and two second stand columns, wherein the first stand columns are rotatably connected with the base through an adjusting mechanism, the two second stand columns are rotatably connected to the bottom surface of the base, the cross section of the base is rectangular, and the two first stand columns and the two second stand columns are respectively positioned at four corners of the rectangle;

the adjusting mechanism comprises a rotating shaft, a clamping cylinder and a guide cylinder, wherein the rotating shaft is horizontally arranged, the clamping cylinder and the guide cylinder are arranged at two ends of the rotating shaft, inner cavities of the clamping cylinder, the rotating shaft and the guide cylinder are communicated, a U-shaped block is arranged in each inner cavity, openings for two arms of the U-shaped block to pass through are formed in the tops of the clamping cylinder and the guide cylinder respectively, the sectional area of the arm of the U-shaped block in the guide cylinder is larger than that of the arm of the U-shaped block in the clamping cylinder, and a pressing block is arranged at the end part of the arm of the U-shaped block in the guide cylinder; the bottom of the U-shaped block is supported on the inner side walls of the clamping cylinder and the guide cylinder opposite to the opening through a pressure spring, and when the pressing block is pressed to the bottom by the pressure spring, the end part of an arm of the U-shaped block, which is positioned in the clamping cylinder, enters the clamping cylinder;

the base is internally provided with a T-shaped groove matched with the clamping cylinder and the rotating shaft, and the edge of the T-shaped groove is at least provided with two limiting grooves clamped with the end parts of the arms of the U-shaped block.

The included angle of the two limiting grooves relative to the axis of the clamping cylinder is 60-90 degrees.

First stand is including the first telescopic link and the second body of rod that from top to bottom connects gradually, be equipped with logical groove in the first telescopic link, the pivot is passed logical groove.

The second rod body is a second telescopic rod, and the second upright post is a third telescopic rod.

The upper surface of base is seted up flutedly, the internally mounted of recess has buffer gear, and is equipped with the cushion on the base, and this cushion covers the open area of recess.

The buffer mechanism includes:

the T-shaped rod is positioned in the groove and slides in the groove along the direction vertical to the base, and the root part of the T-shaped rod is arranged upwards;

the top plate is connected to the root part of the T-shaped rod;

and one end of each telescopic spring is connected with the head of the T-shaped rod, and the other end of each telescopic spring is supported on the supporting surface in the groove.

The base bottom is equipped with the screw hole, buffer gear still includes:

the abutting plate is arranged in parallel with the head of the T-shaped rod, and the other end of each telescopic spring is connected with the top surface of the abutting plate;

one end of the threaded rod penetrates through the threaded hole to support the bottom surface of the abutting plate.

The seat further comprises a back plate, and the back plate is connected with the two first stand columns respectively.

The soft cushion is a rubber layer

The second upright post is hinged with the base.

Compared with the prior art, the utility model has the following beneficial effects:

1. through the U type piece, press the structure in piece, pressure spring and T type groove, realization angle locking that can be convenient, and then improve the folding convenience of seat.

2) Through the cooperation setting between buffer gear, base and the recess, the roof receives decurrent pressure to drive T type pole and removes to the inside of recess, and expanding spring becomes compression state by natural state, and expanding spring's elasticity is adjusted to the rotatory threaded rod of accessible for the upper surface of base is equipped with buffering effect, and then makes the use of device feel more comfortable.

3) Through the cooperation setting between adjustment mechanism, first telescopic link, second telescopic link and the third telescopic link, the accessible is pressed according to the piece for U type piece downstream, and the left end of U type piece breaks away from with the inner wall in T type groove mutually, and rotating base makes the base parallel with first telescopic link, and rotatory third telescopic link, make third telescopic link parallel with the base can, thereby make the device change foldingly, increased the practicality of device.

Drawings

FIG. 1 is a schematic perspective view of an adjusting mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional front view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of a right-side sectional view of the T-shaped groove;

FIG. 4 is a schematic diagram of a right-side sectional structure of the adjusting mechanism;

FIG. 5 is an enlarged view of the structure at A in FIG. 2;

wherein: 1. the base, 2, recess, 3, the rubber layer, 4, buffer gear, 5, first telescopic link, 6, second telescopic link, 7, logical groove, 8, T type groove, 9, adjustment mechanism, 10, third telescopic link, 11, T type pole, 12, expanding spring, 13, support the board, 14, threaded rod, 15, roof, 16, the card section of thick bamboo, 17, the pressure spring, 18, U type piece, 19, press the piece, 20, the block rubber, 21, the backplate, 22, the pivot.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

A foldable seat used on a subway train comprises a base 1, two first stand columns and two second stand columns, wherein the first stand columns are rotatably connected with the base 1 through an adjusting mechanism 9, the two second stand columns are rotatably connected to the bottom surface of the base 1, the cross section of the base 1 is rectangular, and the two first stand columns and the two second stand columns are respectively positioned at four corners of the rectangle;

the adjusting mechanism 9 comprises a rotating shaft 22 arranged horizontally, a clamping cylinder 16 and a guide cylinder which are arranged at two ends of the rotating shaft 22, the clamping cylinder 16, the rotating shaft 22 and the inner cavity of the guide cylinder are communicated, a U-shaped block 18 is arranged in the inner cavity, openings for two arms of the U-shaped block 18 to pass through are formed in the tops of the clamping cylinder 16 and the guide cylinder respectively, the sectional area of the arm of the U-shaped block 18 in the guide cylinder is larger than that of the arm of the U-shaped block 18 in the clamping cylinder 16, and a pressing block 19 is arranged at the end part of the arm of the U-shaped block 18 in the guide cylinder; the bottom of the U-shaped block 18 is supported on the inner side walls of the clamping cylinder 16 and the guide cylinder opposite to the opening position through a pressure spring 17, and when the pressing block 19 is pressed by the pressure spring 17 to the bottom, the end part of an arm of the U-shaped block 18 in the clamping cylinder 16 enters the clamping cylinder 16;

the base 1 is provided with a T-shaped groove 8 matched with the clamping cylinder 16 and the rotating shaft 22, and the edge of the T-shaped groove 8 is at least provided with two limiting grooves clamped with the end parts of the arms of the U-shaped block 18.

Through the U type piece, press the structure in piece, pressure spring and T type groove, realization angle locking that can be convenient, and then improve the folding convenience of seat.

Specifically, the included angle between the two limiting grooves and the axis of the clamping cylinder 16 needs to be matched with the rotation angle of the base 1, and generally, the angle is 60-90 degrees.

In some embodiments, the first upright column includes a first telescopic rod 5 and a second rod body sequentially connected from top to bottom, a through groove 7 is formed in the first telescopic rod 5, and the rotating shaft 22 passes through the through groove 7, so that a segmented design is realized, and the processing and assembly are more convenient.

In some embodiments, the upper surface of the base 1 is provided with a groove 2, the inside of the groove 2 is provided with a buffer mechanism 4, and the base 1 is provided with a soft cushion which covers the opening area of the groove 2, so that the base is more comfortable. Further, in some of the embodiments, the buffer mechanism 4 includes: the T-shaped rod 11 is positioned in the groove, slides in the groove along the direction vertical to the base 1, and the root part of the T-shaped rod is arranged upwards; a top plate 15 connected to the root of the T-bar 11; and one end of each telescopic spring 12 is connected with the head of the T-shaped rod 11, and the other end of each telescopic spring 12 is supported on a supporting surface in the groove. The stability is higher. In one of the embodiments, the cushion is a rubber layer 3.

In a further embodiment, the bottom of the base 1 is provided with a threaded hole, and the buffer mechanism 4 further comprises: the abutting plate 13 is arranged in parallel with the head of the T-shaped rod 11, and the other end of each telescopic spring 12 is connected with the top surface of the abutting plate 13; one end of the threaded rod 14 penetrates through the threaded hole to support the bottom surface of the abutting plate 13. The height can be conveniently adjusted, and then the buffering effect of the adjusting device is adjusted.

In some embodiments, the seat further comprises a back plate 21, the back plate 21 is respectively connected with the two first upright posts, so that the seat is more comfortable to sit, and the extension or contraction length of the first telescopic rod 5 can be adjusted by moving the back plate 21 up and down, so that the application range of the device is enlarged.

In some embodiments, the second upright is connected with the base 1 in a hinged manner, so that the reliability is high.

In some embodiments, the rubber blocks 20 are fixedly connected to the bottom surfaces of the two third telescopic rods 10 and the second telescopic rod 6, and the rubber blocks 20 are arranged to increase the friction force between the device and the ground, so that the bottom surface of the device is more stable.

During the use, roof 15 receives downward pressure to drive T type pole 11 and removes to the inside of recess 2, expanding spring 12 becomes compression state by natural state, make the upper surface of base 1 be equipped with the buffering effect, and then make the use of device feel more comfortable, through rotatory threaded rod 14, make to support 13 and shift up, adjust expanding spring 12's elasticity, and then adjusting device's buffering effect, the practicality of device has been increased, when needs are accomodate, the accessible is pressed and is pressed piece 19, make U type piece 18 move down, the left end of U type piece 18 breaks away from with the inner wall of T type groove 8 mutually, rotating base 1, make base 1 parallel with first telescopic link 5, and rotatory third telescopic link 10, make third telescopic link 10 parallel with base 1 can, make the device be convenient for accomodate.

Claims

1. The foldable seat used on the subway train is characterized by comprising a base (1), two first stand columns and two second stand columns, wherein the first stand columns are rotatably connected with the base (1) through an adjusting mechanism (9), the two second stand columns are rotatably connected to the bottom surface of the base (1), the cross section of the base (1) is rectangular, and the two first stand columns and the two second stand columns are respectively positioned at four corners of the rectangle;

the adjusting mechanism (9) comprises a rotating shaft (22) which is horizontally arranged, a clamping cylinder (16) and a guide cylinder which are arranged at two ends of the rotating shaft (22), the clamping cylinder (16), the rotating shaft (22) and the guide cylinder are communicated, a U-shaped block (18) is arranged in the inner cavity, openings for two arms of the U-shaped block (18) to pass through are formed in the tops of the clamping cylinder (16) and the guide cylinder respectively, the sectional area of the arm of the U-shaped block (18) in the guide cylinder is larger than that of the arm of the U-shaped block (16), and a pressing block (19) is arranged at the end part of the arm of the U-shaped block (18) in the guide cylinder; the bottom of the U-shaped block (18) is supported on the inner side walls of the clamping cylinder (16) and the guide cylinder opposite to the opening position through a pressure spring (17), and when the pressing block (19) is pressed by pressure to press the pressure spring (17) to the bottom, the end part of an arm of the U-shaped block (18) positioned in the clamping cylinder (16) enters the clamping cylinder (16);

be equipped with in base (1) with card section of thick bamboo (16) and pivot (22) complex T type groove (8), and the edge in T type groove (8) is equipped with two spacing grooves with the tip block of the arm of U type piece (18) at least.

2. The foldable seat for subway trains as claimed in claim 1, wherein said two limiting grooves are formed at an angle of 60-90 ° with respect to the axis of said clamping cylinder (16).

3. The foldable seat for subway trains as claimed in claim 1, wherein said first upright comprises a first telescopic rod (5) and a second rod sequentially connected from top to bottom, said first telescopic rod (5) is provided with a through slot (7), said rotating shaft (22) passes through said through slot (7).

4. Foldable seat for subway trains, according to claim 3, characterized in that said second rod is a second telescopic rod (6) and said second upright is a third telescopic rod (10).

5. Foldable seat for subway trains as claimed in claim 1, wherein said base (1) is provided with a recess (2) on its upper surface, said recess (2) is internally provided with a cushioning mechanism (4), and said base (1) is provided with a soft cushion covering the opening area of said recess (2).

6. Foldable seat for a subway train according to claim 5, characterized in that said cushioning mechanism (4) comprises:

the T-shaped rod (11) is positioned in the groove and slides in the groove along the direction vertical to the base (1), and the root part of the T-shaped rod is arranged upwards;

a top plate (15) connected to the root of the T-shaped rod (11);

and one end of each telescopic spring (12) is connected with the head of the T-shaped rod (11), and the other end of each telescopic spring (12) is supported on a supporting surface in the groove.

7. Foldable seat for subway trains, according to claim 6, characterized in that said base (1) is provided with a threaded hole at the bottom, said cushioning mechanism (4) further comprises:

the abutting plate (13) is arranged in parallel with the head of the T-shaped rod (11), and the other end of each telescopic spring (12) is connected with the top surface of the abutting plate (13);

one end of the threaded rod (14) penetrates through the threaded hole to support the bottom surface of the abutting plate (13).

8. Foldable seat for a subway train according to claim 1, characterized in that said seat further comprises a back plate (21), said back plate (21) being connected to two first uprights respectively.

9. Foldable seat for a subway train according to claim 5, characterized in that said cushion is a rubber layer (3).

10. Foldable seat for subway trains, according to claim 1, characterized in that said second upright is hinged to the base (1).