A reversible motor train unit seat

By designing a linkage adjustment mechanism on the train seats, the problem of the CRH6A train seat backrests not being able to be reversed has been solved, allowing passengers to face the direction of travel and improving ride comfort.

CN224545965UActive Publication Date: 2026-07-24GUANGZHOU METRO GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU METRO GRP CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing CRH6A high-speed train seats cannot be oriented with their backrests facing different directions, resulting in passengers not being able to face the direction of travel and experiencing poor comfort.

Method used

A reversible high-speed train seat was designed, which allows the backrest to be adjusted back and forth on both sides of the base through a linkage adjustment mechanism, including linkage, guide rail, button and linkage structure, to achieve stable limit and unlocking of the backrest, making it convenient for passengers to adjust the backrest position.

Benefits of technology

This allows passengers to adjust the backrest from one side to the other as needed, facing the direction of travel, thus improving passenger comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of reversible EMU seat, including base, backrest and connecting rod adjusting mechanism;The backrest is connected with the base by the connecting rod adjusting mechanism, and the backrest is located on the base, for people back leaning;The backrest can be adjusted back and forth on the first side and the second side of the base by the connecting rod adjusting mechanism;The connecting rod adjusting mechanism includes connecting rod, the first end of the connecting rod is connected with the base, and the second end of the connecting rod is connected with the backrest.A kind of reversible EMU seat of the utility model, it can be convenient for passenger to adjust the position of backrest, and it is convenient for passenger to face the direction of car when riding.
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Description

Technical Field

[0001] This utility model belongs to the field of high-speed train seat technology, specifically relating to a reversible high-speed train seat. Background Technology

[0002] Intercity EMUs are mainly used for commuting and business / passenger transport between short- and medium-distance cities and between suburban areas, and are known for their public transport-like operation model. Currently, the CRH6A EMU is the main model for intercity transport. The seats on the CRH6A EMU cannot be rotated from one side to the other, and passengers cannot face the direction of travel, resulting in poor passenger comfort.

[0003] Currently, there is a lack of reversible high-speed train seats that allow passengers to adjust the backrest position and face the direction of travel.

[0004] Therefore, a new technology is needed to address the lack of a reversible EMU seat in existing technologies. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a reversible high-speed train seat, which allows passengers to easily adjust the position of the backrest so that they can face the direction of travel when riding.

[0006] The present invention adopts the following technical solution:

[0007] A reversible high-speed train seat includes a base, a backrest, and a linkage adjustment mechanism; the backrest is connected to the base via the linkage adjustment mechanism and is located on the base for people to lean against; the backrest can be adjusted back and forth on a first side and a second side of the base via the linkage adjustment mechanism; the linkage adjustment mechanism includes a linkage, the first end of which is connected to the base, and the second end of which is connected to the backrest.

[0008] Furthermore, the connecting rods are provided on both the left and right sides of the backrest.

[0009] Furthermore, the base is provided with a first connecting part, and the first end of the connecting rod is tunably connected to the first connecting part.

[0010] Furthermore, the first connecting part includes a guide rail; the guide rail is provided with a plurality of connecting grooves for connecting with the first end of the connecting rod.

[0011] Furthermore, a second connecting portion is provided on the side of the backrest; the second end of the connecting rod is connected to the second connecting portion.

[0012] Furthermore, the second connecting part includes a guide rail; the second end of the connecting rod is adjustablely connected to the guide rail.

[0013] Furthermore, the linkage adjustment mechanism also includes a first adjustment mechanism, which is disposed on the base and is tunably connected to the first end of the linkage, for timely limiting or unlocking the connection of the first end of the linkage.

[0014] Furthermore, the first adjustment mechanism includes a button and a linkage structure; the button is connected to the linkage structure, the button is used to drive the linkage structure to move, and the linkage structure is used to limit or unlock the connection of the first end of the linkage at appropriate times.

[0015] Furthermore, the first end of the connecting rod is a ratchet;

[0016] The linkage structure includes a linkage component and an adjustment component for timely limiting or unlocking of the ratchet;

[0017] The button is connected to the linkage component, and the linkage component is connected to the adjustment component;

[0018] The button is used to drive the linkage to move, the linkage is used to drive the adjustment component to move, and the movement of the adjustment component is used to limit or unlock the connection of the first end of the linkage.

[0019] Furthermore, at least two of the aforementioned train set seats constitute a set of seats.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This utility model discloses a reversible high-speed train seat, in which the backrest is connected to the base via a linkage adjustment mechanism and is located on the base for people to lean against. Through the linkage adjustment mechanism, people can adjust the backrest from one side of the base to the other side to facilitate sitting facing the direction of travel of the high-speed train. Attached Figure Description

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a three-dimensional schematic diagram of the seat back of a high-speed train located on the second side of the base from a first-person perspective.

[0024] Figure 2 yes Figure 1 A stereoscopic diagram from a second perspective;

[0025] Figure 3 This is a three-dimensional schematic diagram of the seat back of a high-speed train from the first perspective of the first side of the base.

[0026] Figure 4 yes Figure 3 A schematic diagram of the wireframe pattern;

[0027] Figure 5 This is a side view of a wireframe configuration of an embodiment of a high-speed train seat;

[0028] Figure 6 This is a three-dimensional schematic diagram of an embodiment of the connecting rod;

[0029] Figure 7 This is a three-dimensional diagram illustrating how the seat backrests of high-speed trains can be adjusted in different directions via a linkage mechanism.

[0030] Figure 8 This is a schematic diagram of the wireframe pattern of the seat back of a high-speed train located on the second side of the base;

[0031] Figure 9 This is a side view of the fourth embodiment of the EMU seat in its wireframe mode;

[0032] Figure 10 yes Figure 9 A magnified view of the limit rod.

[0033] Figure label:

[0034] 1-EMU seat; 2-Base; A-First side; B-Second side; 21-First connecting part; 3-Backrest; 4-Linkage adjustment mechanism; 41-Linkage; 411-First end; 412-Second end; 42-Button; 43-Button-type locking component; 5-Limiting rod; 51-Limiting hole. Detailed Implementation

[0035] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0036] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0037] Reference Figures 1 to 8A reversible high-speed train seat 1 includes a base 2, a backrest 3, and a linkage adjustment mechanism 4; the backrest 3 is connected to the base 2 via the linkage adjustment mechanism 4, and the backrest 3 is located on the base 2 for people to lean against; the backrest 3 can be adjusted back and forth on a first side A and a second side B of the base 2 via the linkage adjustment mechanism 4; the linkage adjustment mechanism 4 includes a link 41, the first end 411 of the link 41 is connected to the base 2, and the second end 412 of the link 41 is connected to the backrest 3.

[0038] Reference Figures 1 to 8 In one embodiment, the connecting rod 41 is provided on both the left and right sides of the backrest 3.

[0039] Reference Figure 4 In the first embodiment, the base 2 is provided with a first connecting part 21, and the first end 411 of the connecting rod 41 is tunably connected to the first connecting part 21.

[0040] In the first embodiment, the first connecting part 21 includes a guide rail; the guide rail is provided with a plurality of connecting grooves for connecting to the first end 411 of the connecting rod 41.

[0041] In the first embodiment, the guide rail is provided with a connecting groove, and the first end 411 of the connecting rod 41 is a ratchet; the connecting rod adjustment mechanism 4 further includes a first adjustment mechanism, which is disposed on the base 2. The first adjustment mechanism consists of a button 42, a spring, and a driving member. The button 42 is connected to the driving member, and the driving member is connected to the guide rail. The button 42 is used to drive the driving member to move, and the driving member is used to drive the guide rail to move. The movement of the guide rail causes the connecting groove to retract to one side, so that the connecting rod 41... The ratchet of link 41 can rotate (i.e., the ratchet of link 41 is unlocked). The backrest 3 can be adjusted from the first side A of the base 2 to the second side B. After the backrest 3 is adjusted to the correct position, the button 42 is released, and the driving component resets under the action of the spring. The reset of the driving component drives the guide rail to reset. The reset of the guide rail causes the connecting groove on it to limit the ratchet (e.g., the connecting groove and the teeth of the ratchet engage, and the ratchet is limited and cannot rotate). This keeps the backrest 3 in a stable position for people to lean on.

[0042] Reference Figures 1 to 3 In one embodiment, when the backrest 3 is in a stable position, the bottom edge of the backrest 3 abuts against the base 2.

[0043] In one embodiment, the backrest 3 has a second connecting portion on its side; the second end 412 of the connecting rod 41 is connected to the second connecting portion.

[0044] In the first embodiment, the second connecting part includes a guide rail; the second end 412 of the connecting rod 41 is adjustablely connected to the guide rail.

[0045] In the first embodiment, the second end 412 of the connecting rod 41 is a bolt, which is connected to the second connecting part of the backrest 3 and can be rotated for adjustment.

[0046] In the second embodiment, the linkage adjustment mechanism 4 further includes a first adjustment mechanism, which is disposed on the base 2 and is tunably connected to the first end 411 of the linkage 41 for timely limiting or unlocking the connection of the first end 411 of the linkage 41. Specifically, the first adjustment mechanism includes a button 42 and a linkage structure. The button 42 is connected to the linkage structure and is used to drive the linkage structure to move. The linkage structure is used to timely limit or unlock the connection of the first end 411 of the linkage 41.

[0047] In the second embodiment, the first end 411 of the connecting rod 41 is a ratchet;

[0048] The linkage structure includes a linkage component and an adjustment component for timely limiting or unlocking of the ratchet;

[0049] The button 42 is connected to the linkage component, and the linkage component is connected to the adjustment component;

[0050] The button 42 is used to drive the linkage to move, the linkage is used to drive the adjustment to move, and the adjustment to limit or unlock the connection of the first end 411 of the link 41. For example: (after pressing the button 42) the adjustment is not locked on the teeth of the ratchet, then the ratchet is unlocked. After the ratchet is unlocked, the link 41 can rotate (around the hinge), and the backrest 3 can be adjusted from the first side A to the second side B of the base 2 through the link 41; or (after releasing the button 42) the adjustment is locked on the teeth of the ratchet, then the ratchet is limited, the link 41 cannot rotate (around the hinge), and the backrest 3 maintains a stable position for people to lean against.

[0051] In the third embodiment, the linkage adjustment mechanism further includes a first adjustment mechanism disposed on the base 2. The first adjustment mechanism includes an electromagnet, a controller, and a button 42. The button 42 is connected to the controller, and the controller is connected to the electromagnet. The button 42 can control the change of the magnetic field of the electromagnet through the controller (such as a controller connected to an electromagnetic induction coil). The first end 411 of the linkage 41 is a magnet, which can be connected to the electromagnet (such as strongly attracted together). When it is necessary to adjust the reversing position of the backrest 3, people press the button 42 to trigger the controller. The controller controls the change of the magnetic field of the electromagnet, and the connection between the magnet and the electromagnet is unlocked. The linkage 41 can rotate (around the connection point). People can adjust the backrest 3 from the first side A of the base 2 to the second side B. After the reversing position of the backrest 3 is adjusted to the correct position, the button 42 is released, and the controller controls the magnetic field of the electromagnet to return to its original state. At this time, the magnet will be attracted and connected to the electromagnet again, realizing the stabilization of the position state of the backrest 3. Preferably, the second end 412 of the connecting rod 41 can also be connected with reference to the connection relationship of the first end 411 of the connecting rod 41. That is, the second end 412 of the connecting rod 41 can also be a magnet. Correspondingly, a corresponding electromagnet is set at the set position of the backrest 3 and controlled by a button through a controller.

[0052] Reference Figure 9 and Figure 10 In the fourth embodiment, the first end 411 of the connecting rod 41 is hinged to the base 2, and the second end 412 of the connecting rod 41 is hinged to the backrest 3; a limiting rod 5 for limiting is also provided on the side of the backrest 3; one end of the limiting rod 5 is hinged to the side of the backrest 3, and the limiting rod 5 (after unlocking) can rotate around the hinge point with the backrest 3; the connecting rod adjustment mechanism 4 also includes a first adjustment mechanism, which further includes a button-type locking member 43 and a spring; the button-type locking member 43 is telescopically and movably disposed on the side of the base 2 via the spring, for limiting the limiting rod 41. The other end of the positioning rod 5; the other end of the positioning rod 5 is provided with a limiting hole 51, which is used to connect with the button-type locking member 43 for limiting connection when appropriate; when the backrest 3 needs to be reversed, the button-type locking member 43 is pressed, and the button-type locking member 43 moves into the base 2. When appropriate, the end of the positioning rod 5 with the limiting hole 51 is unlocked. At this time, the backrest 3 is reversed from one side of the base 2 to the other side through the connecting rod 41. After the backrest 3 reaches the other side, the end of the positioning rod 5 with the limiting hole 51 is adjusted to be connected with the button-type locking member 43 for limiting connection, thereby stabilizing the position of the backrest 3.

[0053] Reference Figure 4 and Figure 7 In one embodiment, when the backrest 3 is adjusted from the first side A to the second side B of the base 2, the connecting rod 41 rotates around the position where the first end 411 is connected to the base 2, and the backrest 3 rotates around the position where it is connected to the second end 412 of the connecting rod 41. The key point of this invention is to realize the reversing of the backrest 3 of the high-speed train seat 1, that is, to realize either "the backrest 3 is adjusted from the first side A to the second side B of the base 2" or "the backrest 3 is adjusted from the second side B to the first side A of the base 2," so as to facilitate people sitting facing the direction of travel of the high-speed train.

[0054] In the first embodiment, preferably, after the first end 411 of the connecting rod 41 is unlocked and limited, the first end 411 of the connecting rod 41 can be displaced along the length direction of the guide rail on the base 2. After being adjusted to the correct position, the first end 411 is then limited and connected. After the second end 412 of the connecting rod 41 is unlocked and limited, the second end 412 of the connecting rod 41 can be displaced along the length direction of the guide rail on the backrest 3. After being adjusted to the correct position, the second end 412 is then limited and connected. Therefore, by adjusting the connection position of the connecting rod 41, the tilt angle of the backrest 3 can be adjusted. The "displacement adjustment-limiting" technology of the first end 411 of the connecting rod 41 along the length direction of the guide rail and the "displacement adjustment-limiting" technology of the second end 412 of the connecting rod 41 along the length direction of the guide rail can be found in the prior art and will not be described in detail here. In the preferred embodiment, the train seat 1 of this utility model can realize the reversal of the backrest 3 and the angle adjustment of the backrest 3 (the angle adjustment technology of the backrest 3 can be referred to the prior art, and will not be described in detail here).

[0055] In one embodiment, at least two of the train set seats constitute a set of seats.

[0056] Reference Figures 1 to 3 In this embodiment, two of the train set seats 1 constitute a set of seats. In another embodiment, three of the train set seats 1 constitute a set of seats.

[0057] In one embodiment, the reversible train seat of this invention is applied to the CRH6A type train.

[0058] Other aspects of the reversible train seat described in this utility model can be found in the prior art and will not be repeated here.

[0059] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A reversible high-speed train seat, characterized in that, The device includes a base, a backrest, and a linkage adjustment mechanism. The backrest is connected to the base via the linkage adjustment mechanism and is located on the base for people to lean against. The backrest can be adjusted back and forth on a first side and a second side of the base via the linkage adjustment mechanism. The linkage adjustment mechanism includes a linkage, the first end of which is connected to the base, and the second end of which is connected to the backrest. The linkage adjustment mechanism further includes a first adjustment mechanism, which is disposed on the base and is tunably connected to the first end of the linkage, for timely limiting or unlocking the connection of the first end of the linkage. The first adjustment mechanism includes a button and a linkage structure; the button is connected to the linkage structure, the button is used to drive the linkage structure to move, and the linkage structure is used to limit or unlock the connection of the first end of the linkage at appropriate times.

2. The reversible EMU seat according to claim 1, characterized in that, The connecting rods are provided on both the left and right sides of the backrest.

3. A reversible EMU seat according to claim 1, characterized in that, The base is provided with a first connecting part, and the first end of the connecting rod is tunably connected to the first connecting part.

4. A reversible EMU seat according to claim 3, characterized in that, The first connecting part includes a guide rail; the guide rail is provided with a plurality of connecting grooves for connecting with the first end of the connecting rod.

5. A reversible EMU seat according to claim 1, characterized in that, The backrest has a second connecting part on its side; the second end of the connecting rod is connected to the second connecting part.

6. A reversible EMU seat according to claim 5, characterized in that, The second connecting part includes a guide rail; the second end of the connecting rod is adjustablely connected to the guide rail.

7. A reversible EMU seat according to claim 1, characterized in that, The first end of the connecting rod is a ratchet; The linkage structure includes a linkage component and an adjustment component for timely limiting or unlocking of the ratchet; The button is connected to the linkage component, and the linkage component is connected to the adjustment component; The button is used to drive the linkage to move, the linkage is used to drive the adjustment component to move, and the movement of the adjustment component is used to limit or unlock the connection of the first end of the linkage.

8. A reversible EMU seat according to any one of claims 1 to 7, characterized in that, At least two of the aforementioned train set seats constitute a set of seats.