CN214450956U

CN214450956U - Waist rest for railway vehicle seat and railway vehicle

Info

Publication number: CN214450956U
Application number: CN202120004301.7U
Authority: CN
Inventors: 王虹; 郭海洋; 李源海; 陈群; 相贝贝
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-10-22
Anticipated expiration: 2031-01-04

Abstract

The utility model provides a waist leans on and rail vehicle for rail vehicle seat. The waist rest comprises a front wall, and a top wall, a bottom wall and two side walls which are connected to four edges of the front wall, wherein the front wall, the top wall, the bottom wall and the two side walls enclose to form a shell with an inner cavity body, the top wall is provided with a plug-in pin, and the plug-in pin vertically extends on one side of the top wall, which is far away from the front wall; the bottom wall is positioned in the inner cavity body and is internally provided with an insert; the insert extends vertically from the bottom wall and forms an insertion cavity with the bottom wall, and the insertion cavity is communicated at one end far away from the front wall and/or one end close to the front wall. Compared with the prior art, the utility model provides a simple structure, simple to operate are leaned on to the waist, have designed the inserts of hiding the installation, not only solve the rail vehicle waist now and lean on the problem that the installation is complicated, the installation accuracy requires height, the atress condition is poor, have still guaranteed the aesthetic property that the waist leaned on.

Description

Waist rest for railway vehicle seat and railway vehicle

Technical Field

The utility model relates to a decorative part technical field in the rail vehicle especially relates to a waist leans on and rail vehicle for rail vehicle seat.

Background

In current urban rail vehicles, the lumbar support is fixed to the side wall of the vehicle body by four legs passing through the inner trim side wall (as disclosed in prior patent publication No. CN111559399A, a lumbar support for a rail vehicle seat). The lumbar support is generally preferably of a length that is convenient for two to three passengers to lean against. In the use, the waist leans on the stabilizer blade atress great, and the atress model is the cantilever beam structure, and the atress condition is relatively poor, appears the not hard up condition of stabilizer blade fastening nut easily. And because the supporting legs are required to be fixed on the vehicle body side wall installing seat through the four round holes of the internally-installed side wall, the requirements on the position size precision of the four mounting holes of the internally-installed side wall and the position size precision of the four supporting legs of the waist rest are very high. In order to ensure that the holes and the supporting legs can be aligned to each other, the installation is generally carried out in a mode that small holes are formed in the built-in side wall and the holes are drilled and expanded on site, the installation process is complex, and the danger that the built-in side wall is cracked in the drilling and assembling process and the rework of the side wall is caused exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waist leans on and rail vehicle for rail vehicle seat to solve the waist and lean on the problem that the installation is complicated, the atress condition is poor.

The technical scheme of the utility model is that: a waist rest for a rail vehicle seat comprises a front wall, and a top wall, a bottom wall and two side walls which are connected to four edges of the front wall, wherein the front wall, the top wall, the bottom wall and the two side walls enclose a shell with an inner cavity body; the bottom wall is positioned in the inner cavity body and is internally provided with an insert; the insert extends from the bottom wall to the top wall, an inserting cavity is formed between the insert and the bottom wall, and the inserting cavity is communicated at one end far away from the front wall and/or one end close to the front wall.

In the scheme, the installation mode of hanging is realized by adopting the plug pins, so that the installation is simple; and the stress performance is improved by the combined mode of hanging and embedding.

Preferably, the insert is of an n-type structure, and the n-type opening is connected with the bottom wall.

Preferably, the top of the insert is provided with a connecting hole which is communicated with the inserting cavity.

Preferably, the connecting hole is a waist-shaped hole extending in the length direction of the waist rest.

Preferably, the bottom wall is provided with a fabrication hole, and the fabrication hole is positioned below the connecting hole.

Preferably, the two ends of the waist rest are provided with the inserting pins, and the insert is arranged at least two positions close to each inserting pin.

Preferably, the protruding length of the junction of the bottom wall and the front wall is greater than the protruding length of the junction of the top wall and the front wall, and the two junctions are both rounded corners.

The utility model also provides a rail vehicle, including the automobile body side wall, cover interior decoration side wall on the automobile body side wall and install the waist on the interior decoration side wall and lean on, rail vehicle still includes the mount pad, the mount pad is located on the interior decoration side wall and fixed with the automobile body side wall, the upper end of mount pad is equipped with L type groove, and the lower extreme is equipped with the stabilizer blade, form the hanging chamber between L type groove and the interior decoration side wall, the stabilizer blade extends to the direction level that keeps away from interior decoration side wall;

the waist support is the waist support for the rail vehicle seat, the plug pins are hung in the hanging connection cavity, the support legs extend into the plug connection cavity, and the support legs are connected with the top of the insert.

Preferably, the supporting legs are provided with U-shaped openings, and the extending directions of the U-shaped openings and the supporting legs are consistent.

Preferably, the bottom wall of the lumbar support for the railway vehicle seat is provided with a fabrication hole, and a soft plug is embedded in the fabrication hole; and a layer of felt is wrapped on the outer side of the plug pins.

Compared with the prior art, the beneficial effects of the utility model are that: simple structure, simple to operate have designed the inserts of hiding the installation, not only solve the problem that the installation is complicated, the installation accuracy requires height, the atress condition is poor for the rail vehicle waist now, still guaranteed the aesthetic property that the waist leaned on.

Drawings

FIG. 1 is a schematic view of the installation of a lumbar support for a seat of a railway vehicle provided by the present invention;

FIG. 2 is a schematic structural view of a lumbar support for a seat of a railway vehicle according to the present invention;

fig. 3 is a schematic structural diagram of the mounting seat provided by the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the present embodiment provides a rail vehicle including a lumbar support 1 for a rail vehicle seat, a vehicle body side wall 2, an interior side wall 3, a mount 4, a soft plug 5, a first bolt group 6, and a second bolt group 7.

The inner decoration side wall 3 covers the vehicle body side wall 2, and the installation seat 4 is used for fixing the waist rest 1 on the inner decoration side wall 3.

As shown in fig. 2, the lumbar support 1 includes a front wall 11, a top wall 12, a bottom wall 13, side walls 14, an inner cavity body 15, a plug pin 16, an insert 17, and a plug cavity 18.

The front wall 11, the top wall 12, the bottom wall 13 and the two side walls 14 enclose a housing with the hollow interior cavity 15. The end of the shell far away from the front wall 11 is of a through structure, so that the waist support 1 can be conveniently installed.

The top wall 12 is provided with the plug pins 16, and the plug pins 16 extend in a direction from the side of the top wall 12 away from the front wall 11 to the bottom wall 13 to form a hook as shown in fig. 1. The bottom wall 13 is provided with an insert 17 on the inner cavity 15, and the insert 17 and the plug pin 16 are located on the same side of the housing. The insert 17 is of an n-type structure, and the n-type opening is connected with the bottom wall 13, so that the insert 17 is of a structure extending from the bottom wall 13 to the top wall 12, and forms the plug cavity 18 with the bottom wall 13. As shown in fig. 1, the plug-in cavity 18 penetrates at an end remote from the front wall 11 and/or at an end close to the front wall 11, considering the connection of the mounting seat 4 to the lumbar support 1.

As shown in fig. 2, a connection hole 171 penetrating into the plug cavity 18 is provided at the top of the insert 17. The connection hole 171 is a waist-shaped hole extending in the longitudinal direction of the lumbar support 1. The length of the lumbar support refers to the distance between the two side walls 14.

The plug pins 16 are arranged at two ends of the waist rest 1, and at least two plug pins 16 are arranged at positions close to the inserts 17. The bottom wall 13 is provided with process holes 131, the process holes 131 are arranged in one-to-one correspondence with the connection holes 171, and the process holes 131 are located below the connection holes 171.

As shown in fig. 1 and 2, the protruding length of the junction between the bottom wall 13 and the front wall 11 is greater than the protruding length of the junction between the top wall 12 and the front wall 11, and both junctions are rounded. The shape of the waist support 1 is matched with the waist of a human body, and is in accordance with ergonomics.

As shown in fig. 1 and 3, the mounting seat 4 is fixed on the inner decorative sidewall 3, and an L-shaped groove 41 is provided at an upper end of the mounting seat 4, and a leg 42 is provided at a lower end thereof. A hanging cavity 43 is formed between the L-shaped groove 41 and the inner decorative side wall 3. The legs 42 extend horizontally away from the trim side wall 3.

As shown in fig. 3, a U-shaped opening 421 is formed in the supporting leg 42, and the extending direction of the U-shaped opening 421 is the same as the extending direction of the supporting leg 42. The extending direction of the U-shaped opening 421 is perpendicular to the extending direction of the waist-shaped hole of the connecting hole 171, so that the adjusting device can be well adapted to the adjustment of assembly errors caused by part machining errors, the requirement on part machining accuracy is low, and the machining cost is saved.

As shown in fig. 1, during installation, the mounting seat 4 is first placed at a corresponding position on the interior side wall 3, and is fixed to the vehicle body side wall 2 by penetrating the interior side wall 3 through the first bolt group 6. The front wall 11 of the lumbar support 1 is far away from the inner decoration side wall 3, the insert 17 on the lumbar support 1 is arranged above the support leg 42 on the mounting seat 4, the lumbar support 1 is leaned on the inner decoration side wall 3 and slides downwards, so that the plug pins 16 fall into the hanging cavity 43 of the L-shaped groove, and at the moment, the top of the insert 17 is contacted with the support leg 42. And the second bolt set 7 penetrates through the U-shaped opening 421 and the connecting hole 171 to connect the supporting leg 42 and the insert 17. The installation of the U-shaped opening 421 and the connection hole 171 can be adjusted, so that the second bolt group 7 can be normally installed even with low installation accuracy.

The second bolt group 7 is screwed through the fabrication hole 131. Finally, the soft plug 5 is inserted into the fabrication hole 131 from the bottom of the lumbar support 1. The soft plug 5 is made of rubber.

The outer side of the plug-in pins 16 is wrapped with a layer of felt which can be arranged on the side face of the plug-in pins 16 attached to the inner decoration side wall, so that the waist rest 1 can be effectively ensured to abut against the inner decoration side wall without a gap. Or can be arranged on the side surface jointed with the L-shaped groove 41 at the same time, so that the splicing foot 16 is jointed with the L-shaped groove 41 compactly and without gap.

The two inserts 17 are respectively arranged at two ends of the waist rest 1, and the two support legs 42 are respectively arranged at two ends of the mounting seat 4. When the waist support is installed, the support legs 42 are installed with the corresponding inserts 17 according to actual positions, so that the flexibility of the waist support 1 is improved, and adjustability is achieved.

The upper end of the waist rest 1 adopts a hanging mode, the lower end adopts an embedding mode, so that the mounting point is not leaked, the number of holes drilled on the inner decorative side wall 3 is reduced, the stress condition is good, and the mounting precision is higher.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A lumbar support for a rail vehicle seat comprises a front wall (11), and a top wall (12), a bottom wall (13) and two side walls (14) which are connected to four edges of the front wall (11), wherein the front wall (11), the top wall (12), the bottom wall (13) and the two side walls (14) enclose to form a shell with an inner cavity body (15), and is characterized in that a plug pin (16) is arranged on the top wall (12), and the plug pin (16) extends towards the bottom wall (13) on one side of the top wall (12) far away from the front wall (11); the bottom wall (13) is positioned on the inner cavity body (15) and is provided with an insert (17); the insert (17) extends from the bottom wall (13) to the top wall (12), and an insertion cavity (18) is formed between the insert (17) and the bottom wall (13), and the insertion cavity (18) penetrates at one end far away from the front wall (11) and/or one end close to the front wall (11).

2. The lumbar support for seats of railway vehicles as claimed in claim 1, characterized in that said insert (17) is of n-shaped configuration, the n-shaped opening being connected to said bottom wall (13).

3. The lumbar support for a seat for a rail vehicle according to claim 1 or 2, characterized in that the top of the insert (17) is provided with a connection hole (171) which penetrates into the plug cavity (18).

4. The lumbar support for a seat for a railway vehicle according to claim 3, characterized in that the connection hole (171) is a lumbar-shaped hole extending in the length direction of the lumbar support.

5. The lumbar support for a seat for a rail vehicle according to claim 3, characterized in that the bottom wall (13) is provided with an art hole (131), the art hole (131) being located below the connecting hole (171).

6. A lumbar support for rail vehicle seats according to claim 1 or 2, characterized in that the plug-in legs (16) are provided at both ends of the lumbar support, and that the insert (17) is provided adjacent to each plug-in leg (16) in at least two.

7. The lumbar support for seats of rail vehicles according to claim 1 or 2, characterized in that the junction of the bottom wall (13) and the front wall (11) has a greater projection length than the junction of the top wall (12) and the front wall (11), both of which junctions are rounded.

8. A rail vehicle comprises a vehicle body side wall (2), an inner decoration side wall (3) covered on the vehicle body side wall (2) and a waist rest (1) installed on the inner decoration side wall (3), and is characterized by further comprising an installation seat (4), wherein the installation seat (4) is arranged on the inner decoration side wall (3) and fixed with the vehicle body side wall (2), an L-shaped groove (41) is formed in the upper end of the installation seat (4), a support leg (42) is arranged at the lower end of the installation seat (4), a hanging cavity (43) is formed between the L-shaped groove (41) and the inner decoration side wall (3), and the support leg (42) horizontally extends towards the direction far away from the inner decoration side wall (3);

the waist support (1) is as claimed in any one of claims 1 to 7, the plug-in pins (16) are hung in the hanging cavity (43), the support legs (42) extend into the plug-in cavity (18), and the support legs (42) are connected with the top of the insert (17).

9. The rail vehicle according to claim 8, characterized in that a U-shaped opening (421) is provided on the foot (42), the U-shaped opening (421) corresponding to the extension direction of the foot (42).

10. The rail vehicle according to claim 8, characterized in that the bottom wall (13) of the lumbar support for the rail vehicle seat is provided with a fabrication hole (131), and a soft plug (5) is embedded in the fabrication hole (131); the outer side of the inserting foot (16) is wrapped with a layer of felt.