CN215244858U - Boundary beam profile structure, boundary beam, underframe and rail vehicle - Google Patents
Boundary beam profile structure, boundary beam, underframe and rail vehicle Download PDFInfo
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- CN215244858U CN215244858U CN202121266513.9U CN202121266513U CN215244858U CN 215244858 U CN215244858 U CN 215244858U CN 202121266513 U CN202121266513 U CN 202121266513U CN 215244858 U CN215244858 U CN 215244858U
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Abstract
The utility model provides a boundary beam section bar structure, include: the outer side wall forms an arc line structure which is retracted from the roof to the bottom of the vehicle; the inner side wall is arranged on one side of the outer side wall facing the inside of the vehicle and is arranged at intervals with the outer side wall; the routing cavity is formed between the outer side wall and the inner side wall and is arranged in a penetrating mode along the length direction of the boundary beam. This boundary beam section bar structure's inside sets up the line chamber of walking that the length direction along the boundary beam link up, wears to establish the cable between can in the boundary beam to can not destroy the structural strength of boundary beam, promptly, on the structural strength's that has the boundary beam basis, can enough consider the vehicle subtract the heavy demand that falls and hinder, can rationally optimize again and walk the line space, satisfy the vehicle and walk the line demand.
Description
Technical Field
The utility model relates to a track traffic technical field especially relates to a boundary beam section bar structure and boundary beam, chassis, rail vehicle.
Background
In rail vehicles, the underframe is the main load-bearing structure of the car body, and the underframe edge beam is one of the main load-bearing structures of the underframe. The boundary beam is one of the most key connecting parts of the vehicle body, and can connect important parts of the rail vehicle such as an underframe, a floor, a side wall, a sleeper beam, a buffer beam, an end wall and the like into a whole.
In the existing rail transit project, how to realize the weight reduction and the resistance reduction of the vehicle is a key technical goal of vehicle design. Moreover, the existing vehicle has many devices under the vehicle, the routing of cables under the vehicle is complex, and how to reasonably optimize the routing space on the basis of ensuring the weight reduction and resistance reduction of the vehicle becomes a technical problem to be solved urgently in the structural design of the existing vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a boundary beam section bar structure for how to realize improving the vehicle and subtract heavy resistance-reducing ability, can rationally optimize again and walk the line space, satisfy the vehicle and walk the line demand.
The utility model also provides a boundary beam.
The utility model also provides an underframe.
The utility model also provides a rail vehicle.
The utility model provides a boundary beam section bar structure, include:
the outer side wall forms an arc line structure which is retracted from the roof to the bottom of the vehicle;
the inner side wall is arranged on one side, facing the interior of the vehicle, of the outer side wall and is arranged at intervals with the outer side wall;
and the routing cavity is formed between the outer side wall and the inner side wall and is arranged in a penetrating way along the length direction of the boundary beam.
According to the utility model provides a pair of boundary beam profile structure, boundary beam profile structure still includes:
the snake-shaped resisting mounting position is arranged at the bottom of the inner side wall, is connected with the outer side wall and is used for mounting a snake-shaped resisting mounting seat;
and the equipment compartment installation interface is arranged at the bottom of the inner side wall and beside the snake-shaped resisting installation position, wherein the equipment compartment installation interface and at least one installation surface of the snake-shaped resisting installation position are in the same plane.
According to the utility model provides a pair of boundary beam section bar structure, anti snakelike installation position includes:
the first mounting surface is connected between the bottom of the inner side wall and the bottom of the outer side wall, the first mounting surface is arranged on the outer side of the equipment compartment mounting interface, and the equipment compartment mounting interface and the first mounting surface are positioned on the same plane;
and the second mounting surface is arranged on the inner surface of the inner side wall and is positioned above the equipment compartment mounting interface.
According to the utility model provides a boundary beam profile structure, the boundary beam profile structure further comprises a first outer transverse rib, a second outer transverse rib, a third outer transverse rib and a fourth outer transverse rib, wherein the first outer transverse rib, the second outer transverse rib, the third outer transverse rib and the fourth outer transverse rib are arranged on one side of the inner side wall facing the interior of the vehicle from bottom to top at intervals;
the first outer transverse rib and the second outer transverse rib are respectively arranged at the bottom of the inner side wall and are positioned above the equipment compartment installation interface, so that the second installation surface is formed between the first outer transverse rib and the second outer transverse rib;
the third outer transverse rib and the fourth outer transverse rib are respectively arranged at the top of the inner side wall, and the third outer transverse rib and the fourth outer transverse rib can form a floor connecting position through combination;
the first outer transverse rib and the third outer transverse rib can form a main cross beam mounting position through combination;
and the second outer transverse rib and the fourth outer transverse rib can form a sleeper beam mounting position through combination.
According to the utility model provides a pair of boundary beam section bar structure, the outer horizontal muscle orientation of third outer horizontal muscle and/or fourth one end in the car is constructed there is the stair structure.
According to the utility model provides a pair of boundary beam profile structure, boundary beam profile structure still includes:
the inner transverse ribs are transversely connected between the inner side wall and the outer side wall, and two adjacent inner transverse ribs respectively surround the inner side wall and the outer side wall to form the wiring cavity;
and the reinforcing ribs are obliquely connected between the inner side wall and the outer side wall and are positioned between the adjacent inner transverse ribs.
According to the utility model provides a pair of boundary beam profile structure, boundary beam profile structure still includes:
the bottom of the extension rib is connected with the top of the inner side wall, and the top of the extension rib is arranged at an interval with the outer side wall;
and the side wall mounting position is formed between the top of the outer side wall and the top of the extension rib.
The utility model also provides a boundary beam has as above boundary beam section bar structure.
The utility model also provides a chassis, including a pair of setting side by side as above the boundary beam.
The utility model also provides a rail vehicle, which comprises the edge beam; or comprise a chassis as described above.
The utility model provides a boundary beam section bar structure, include lateral wall, inside wall and walk the line chamber. Wherein: the outer side wall forms an arc line structure which is retracted from the roof to the bottom of the vehicle; the inner side wall is arranged on one side of the outer side wall facing the interior of the vehicle and is arranged at intervals with the outer side wall; the routing cavity is formed between the outer side wall and the inner side wall and is arranged in a penetrating mode along the length direction of the boundary beam. This boundary beam section bar structure's inside sets up the line chamber of walking that the length direction along the boundary beam link up, wears to establish the cable between can in the boundary beam to can not destroy the structural strength of boundary beam, promptly, on the structural strength's that has the boundary beam basis, can enough consider the vehicle subtract the heavy demand that falls and hinder, can rationally optimize again and walk the line space, satisfy the vehicle and walk the line demand.
The utility model also provides a boundary beam has foretell boundary beam section bar structure. Through setting up foretell boundary beam section bar structure for this boundary beam possesses the whole advantages of foretell boundary beam section bar structure, and it is not repeated here specifically.
The utility model also provides a chassis, including a pair of setting side by side as above the boundary beam. Through the arrangement of the edge beam, the underframe has all the advantages of the edge beam, and details are not described herein.
The utility model also provides a rail vehicle, including foretell boundary beam or foretell chassis. By arranging the side beam or the underframe, the rail vehicle has all the advantages of the side beam, and details are not described herein.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the side beam profile structure provided by the present invention.
Reference numerals:
1: a wiring cavity; 2: an inner sidewall; 3: an outer sidewall;
41: a first mounting surface; 42: a second mounting surface; 5: an equipment bay installation interface;
6: a first outer transverse rib; 7: a second outer transverse rib; 8: a third outer transverse rib;
9: a fourth outer transverse rib; 10: supporting ribs; 11: extending the ribs;
12: an inner transverse rib; 13: reinforcing ribs; 14: a side wall mounting position;
101: a cable.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model discloses a boundary beam profile structure is described below in connection with fig. 1 to further describe the utility model discloses a boundary beam, chassis and rail vehicle based on this boundary beam profile structure.
As shown in fig. 1, according to the load condition and stress distribution of the vehicle body structure, the boundary beam profile structure is arranged in different thicknesses on the whole, namely, the thicknesses of the boundary beam profile structure at each position along the length direction of the boundary beam are different, so that the structure is designed in a light-weight optimization manner under the condition of meeting the strength requirement of the boundary beam. Moreover, the boundary beam profile structure can effectively integrate all functional interfaces, so that the interface integration level is improved, the processing amount in the vehicle production process is reduced, and the processing efficiency is improved.
Specifically, the boundary beam profile structure comprises an outer side wall 3, an inner side wall 2 and a routing cavity 1. The outer side wall 3 forms an arc line structure which is folded inwards from the roof to the bottom of the vehicle so as to realize a streamline design structure folded inwards at the bottom of the side wall of the vehicle body. The inner side wall 2 is arranged on one side of the outer side wall 3 facing the inside of the vehicle and is arranged at an interval with the outer side wall 3. Walk line chamber 1 and form between lateral wall 3 and inside wall 2 to walk line chamber 1 and link up the setting along the length direction of boundary beam, so that cable 101 can wear to establish in walking line chamber 1 along the length direction of boundary beam. Preferably, the two ends of the wiring cavity 1 in the length direction of the edge beam are respectively provided with an opening, and a baffle is arranged to ensure the whole sealing performance of the wiring cavity 1.
It can be seen that this boundary beam section bar structure's inside sets up the line chamber 1 of walking that the length direction of following the boundary beam link up, wears to establish cable 101 between in the boundary beam to can not destroy the structural strength of boundary beam, promptly, on the structural strength's of having the boundary beam basis, can enough consider the vehicle subtract the heavy demand that falls and hinder, can rationally optimize again and walk the line space, satisfy the vehicle and walk the line demand.
It will be appreciated that the preferred sill-section structure also includes a plurality of internal transverse ribs 12 connected transversely between the inner and outer side walls 2, 3. Wherein two adjacent inner transverse ribs 12 surround the inner side wall 2 and the outer side wall 3 respectively to form the wiring cavity 1. In order to ensure smooth routing and reduce threading resistance, inner cavity fillets are preferably formed between two ends of two inner transverse ribs 12 forming the routing cavity 1 and the inner side wall 2 and the outer side wall 3 respectively, namely, corners of the inner wall of the routing cavity 1 are formed into circular arc structures, so that the cross section of the routing cavity 1 is formed into a structure similar to a circle or an ellipse, and damage to the cable 101 is avoided.
It will be appreciated that the preferred sill-section structure also includes a plurality of angled ribs 13 connected between the inner and outer side walls 2, 3. At least one reinforcing rib 13 is arranged between the adjacent inner transverse ribs 12. The reinforcing ribs 13 can play a role in reinforcing and supporting between the inner side wall 2 and the outer side wall 3, so that the strength of the boundary beam profile structure is ensured to be more reliable. Utilize many inner crossbeams to cut apart the die cavity that forms a plurality of rectangles or trapezoidal cross-sections between inside wall 2 and the lateral wall 3, the strengthening rib 13 that the slope set up can further cut apart the die cavity that forms a plurality of triangle-shaped cross-sections between inside wall 2 and lateral wall 3 to further improve the whole bearing capacity and the structural strength of boundary beam section bar structure.
In some embodiments, in order to reduce the complexity of the section structure of the edge beam profile structure and realize light structure, the edge beam profile structure further comprises an anti-snake-shaped mounting position and an equipment cabin mounting structure. The snake-shaped resisting mounting position is arranged at the bottom of the inner side wall 2 and connected with the outer side wall 3. The anti snakelike mount pad of anti snakelike mount pad is used for installing anti snakelike shock absorber under the car. The equipment bay mounting interface 5 is disposed at the bottom of the inner side wall 2 and beside the anti-snake mounting location. The equipment cabin mounting interface 5 is used for mounting a vehicle bottom equipment cabin.
In the boundary beam profile structure, the equipment compartment installation interface 5 and at least one installation surface of the snake-shaped resisting installation position are in the same plane. As shown particularly in fig. 1, the anti-snaking mounting location includes a first mounting surface 41 and a second mounting surface 42. The first mounting surface 41 is connected between the bottom of the inner side wall 2 and the bottom of the outer side wall 3. Specifically, the first mounting surface 41 is disposed outside the equipment compartment mounting interface 5, and the equipment compartment mounting interface 5 and the first mounting surface 41 are in the same plane. The second mounting surface 42 is disposed on an inner surface of the inner side wall 2, the second mounting surface 42 being located above the equipment bay mounting interface 5. Because the installation interface structure of equipment cabin in prior art's boundary beam is in the below of anti snakelike installation position, the boundary beam is at the in-process of the anti snakelike shock absorber of installation, need mill the equipment cabin installation interface 5 of anti snakelike installation position below, and the area can guarantee the reliable assembly of anti snakelike mount pad. Compared with the prior art, the equipment cabin installation interface 5 of the boundary beam profile structure is moved upwards to be located in the same plane with at least one installation surface of the snake-shaped resisting installation position, so that redundant profiles do not need to be milled at the position where the snake-shaped resisting installation seat is installed on the boundary beam, the processing amount of vehicle body assembly is reduced, and the production efficiency and the safety are improved.
Understandably, riveting between the anti-snake mounting locations and the anti-snake mounting seats is preferred to reduce weld defects and improve strength and reliability.
In some embodiments, the sill section structure further includes a floor connection location, a main beam mounting location, and a bolster mounting location. The floor connecting position, the main cross beam mounting position and the sleeper beam mounting position are respectively arranged at different positions in the length direction of the boundary beam according to the requirements of a connecting structure of the vehicle body and the underframe. All be provided with the floor on the whole length direction of boundary beam and connect the position, the floor is connected the position and is used for connecting floor in the car. The main beam mounting position is used for connecting equipment hanging main beams, namely, the main beam mounting position is arranged at the position of the edge beam corresponding to the position of the equipment hanging main beams on the underframe. The sleeper beam mounting positions are used for connecting sleeper beams, namely the sleeper beam mounting positions are arranged at the positions of the side beams corresponding to the positions where the sleeper beams are arranged on the underframe. Wherein, the two ends of the underframe are respectively provided with a sleeper beam, and the equipment hanging main beam is positioned in the middle of the car body and is transversely arranged between a pair of sleeper beams.
As shown in fig. 1, the side sill profile structure specifically includes a first outer transverse rib 6, a second outer transverse rib 7, a third outer transverse rib 8, and a fourth outer transverse rib 9. The first outer transverse rib 6, the second outer transverse rib 7, the third outer transverse rib 8 and the fourth outer transverse rib 9 are arranged on one side of the inner side wall 2 facing the vehicle from bottom to top at intervals. Preferably, this boundary beam section bar structure's inside wall 2 sets up along the vertical of automobile body, and first outer horizontal muscle 6, the outer horizontal muscle 7 of second, the outer horizontal muscle 8 of third and the outer horizontal muscle 9 of fourth set up with inside wall 2 is perpendicular respectively. Wherein, first outer horizontal muscle 6 and the outer horizontal muscle 7 of second set up respectively in the bottom of inside wall 2, and lie in the top of equipment compartment installation interface 5 to form foretell second installation face 42 between first outer horizontal muscle 6 and the outer horizontal muscle 7 of second. Wherein, the outer horizontal muscle 8 of third and the outer horizontal muscle 9 of fourth set up respectively in the top of inside wall 2 to the outer horizontal muscle 8 of third and the outer horizontal muscle 9 of fourth can form foretell floor connection position, convenient equipment and location through the combination. Wherein, first outer horizontal muscle 6 can form foretell main beam installation position with the outer horizontal muscle 8 of third through the combination, plays location and guard action, the vertical load of bearing that can be better. Wherein, the outer horizontal muscle 7 of second and the outer horizontal muscle 9 of fourth can form sleeper beam installation position through the combination, play location and guard action, the vertical load of bearing that can be better.
Understandably, in order to meet the requirement of the corresponding mounting structure of each component in the edge beam and the underframe and ensure that the assembly connection strength is reliable, the following steps are preferred: the distance between the first outer transverse rib 6 and the second outer transverse rib 7 is matched with the structure of the snake-shaped resisting mounting seat; the space between the third outer transverse rib 8 and the fourth outer transverse rib 9 is matched with the structure of the floor in the vehicle; the distance between the first outer transverse rib 6 and the third outer transverse rib 8 is matched with the structure of the equipment hanging main beam; the distance between the second outer transverse bar 7 and the fourth outer transverse bar 9 is matched with the structure of the sleeper beam. This setting can guarantee that the boundary beam is whole at the installation, and each installation position can be directly correspond the erection joint with the chassis that corresponds or the part of automobile body, need not to carry out extra processing to the boundary beam, reduces the processingquantity, improves the packaging efficiency.
It will be appreciated that in order to stiffen the structure, a bracing bar 10 is connected between the first outer beam and the equipment bay mounting interface 5, such that a trapezoidal or rectangular cavity is configured at the top of the first outer beam and the equipment bay mounting interface 5.
Understandably, in order to improve the bearing strength inside the side beam and meet the requirement of light weight, an inner transverse rib 12 and/or a reinforcing rib 13 are preferably and correspondingly arranged at the position where each outer transverse rib is arranged on the inner side surface, so that the position where the outer transverse rib is arranged on the inner side surface plays a role in reinforcing stress points.
Understandably, the preferred third outer horizontal rib 8 and/or the fourth outer horizontal rib 9 is constructed with the stair structure towards the one end in the car, utilize the stair structure can guarantee reliable counterpoint overlap joint between outer horizontal rib and the floor, can better location when convenient subsequent welding equipment to, can be equivalent to at the stair structure increased the backing plate structure at the welding seam back on floor, further promote welding quality.
In some embodiments, as shown in fig. 1, the sill-section structure further includes a sidewall mounting location 14. The side wall mounting positions 14 are arranged at the top of the side beam profile structure and used for being connected with the bottom of the side wall, so that the side beam integrally plays a role in reinforcing and supporting the side wall. Specifically, the top of the inner side wall 2 extends upwards and is connected with an extension rib 11. The top of the extension rib 11 is arranged at an interval with the outer side wall 3 and is connected by a transverse rib so as to construct the above-mentioned side wall mounting position 14 between the top of the extension rib 11 and the top of the outer side wall 3.
In order to facilitate the connection and positioning assembly of the side sill profile structure and the side wall, preferably, extending ribs are respectively extended outwards from the top of the outer side wall 3 and the top of the extending rib 11, and a groove-shaped side wall mounting position 14 is formed between a pair of the extending ribs. And, preferably be equipped with the chamfer on every stretches out the muscle, the setting of chamfer can be more favorable to stretching out the equipment location between muscle and the side wall bottom to improve welding quality.
The utility model also provides a boundary beam has foretell boundary beam section bar structure. Through setting up foretell boundary beam section bar structure for this boundary beam possesses the whole advantages of foretell boundary beam section bar structure, and it is not repeated here specifically.
The utility model also provides a chassis, including a pair of setting side by side as above the boundary beam. Through the arrangement of the edge beam, the underframe has all the advantages of the edge beam, and details are not described herein.
The utility model also provides a rail vehicle, including foretell boundary beam or foretell chassis. By arranging the side beam or the underframe, the rail vehicle has all the advantages of the side beam, and details are not described herein.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A sill section structure comprising:
the outer side wall forms an arc line structure which is retracted from the roof to the bottom of the vehicle;
the inner side wall is arranged on one side, facing the interior of the vehicle, of the outer side wall and is arranged at intervals with the outer side wall;
and the routing cavity is formed between the outer side wall and the inner side wall and is arranged in a penetrating way along the length direction of the boundary beam.
2. The sill section structure of claim 1, further comprising:
the snake-shaped resisting mounting position is arranged at the bottom of the inner side wall, is connected with the outer side wall and is used for mounting a snake-shaped resisting mounting seat;
and the equipment compartment installation interface is arranged at the bottom of the inner side wall and beside the snake-shaped resisting installation position, wherein the equipment compartment installation interface and at least one installation surface of the snake-shaped resisting installation position are in the same plane.
3. The sill section structure of claim 2, wherein the anti-snake mounting location comprises:
the first mounting surface is connected between the bottom of the inner side wall and the bottom of the outer side wall, the first mounting surface is arranged on the outer side of the equipment compartment mounting interface, and the equipment compartment mounting interface and the first mounting surface are positioned on the same plane;
and the second mounting surface is arranged on the inner surface of the inner side wall and is positioned above the equipment compartment mounting interface.
4. The edge beam profile structure according to claim 3, further comprising a first outer transverse rib, a second outer transverse rib, a third outer transverse rib and a fourth outer transverse rib, wherein the first outer transverse rib, the second outer transverse rib, the third outer transverse rib and the fourth outer transverse rib are arranged on one side of the inner side wall facing the interior of the vehicle at intervals from bottom to top;
the first outer transverse rib and the second outer transverse rib are respectively arranged at the bottom of the inner side wall and are positioned above the equipment compartment installation interface, so that the second installation surface is formed between the first outer transverse rib and the second outer transverse rib;
the third outer transverse rib and the fourth outer transverse rib are respectively arranged at the top of the inner side wall, and the third outer transverse rib and the fourth outer transverse rib can form a floor connecting position through combination;
the first outer transverse rib and the third outer transverse rib can form a main cross beam mounting position through combination;
and the second outer transverse rib and the fourth outer transverse rib can form a sleeper beam mounting position through combination.
5. The sill section structure of claim 4, wherein the third and/or fourth outer transverse bar is configured with a step structure at an end facing into the vehicle interior.
6. The sill section structure of any one of claims 1 to 5, further comprising:
the inner transverse ribs are transversely connected between the inner side wall and the outer side wall, and two adjacent inner transverse ribs respectively surround the inner side wall and the outer side wall to form the wiring cavity;
and the reinforcing ribs are obliquely connected between the inner side wall and the outer side wall and are positioned between the adjacent inner transverse ribs.
7. The sill section structure of any one of claims 1 to 5, further comprising:
the bottom of the extension rib is connected with the top of the inner side wall, and the top of the extension rib is arranged at an interval with the outer side wall;
and the side wall mounting position is formed between the top of the outer side wall and the top of the extension rib.
8. A sill characterized by having a sill section structure as claimed in any one of claims 1 to 7.
9. An undercarriage including a pair of side rails as claimed in claim 8 juxtaposed one another.
10. A rail vehicle comprising the sill of claim 8; or comprise a chassis according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121266513.9U CN215244858U (en) | 2021-06-07 | 2021-06-07 | Boundary beam profile structure, boundary beam, underframe and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121266513.9U CN215244858U (en) | 2021-06-07 | 2021-06-07 | Boundary beam profile structure, boundary beam, underframe and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215244858U true CN215244858U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121266513.9U Active CN215244858U (en) | 2021-06-07 | 2021-06-07 | Boundary beam profile structure, boundary beam, underframe and rail vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN215244858U (en) |
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- 2021-06-07 CN CN202121266513.9U patent/CN215244858U/en active Active
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