An irregular door stand column and track car door opening structure
By designing irregularly shaped door pillars, the problem of complex manufacturing of traditional railcar door pillars was solved, achieving the effects of simplified processing, weight reduction and increased strength, and ensuring uniform load transfer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional railcar door pillars are complex to manufacture and have complex load transfer processes, which can easily lead to stress concentration and affect the long-term use of the vehicle.
Design an irregularly shaped door post with an inverted convex cross-section. The first and third horizontal sides are staggered in the width direction. The material is stainless steel. The structure is simple and the processing technology is simplified.
The simplified processing technology reduces weight, increases strength, ensures uniform load distribution, and improves the strength and rigidity of the door structure.
Smart Images
Figure CN224476928U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of track technology, and in particular to a special-shaped door post and track vehicle door structure. Background Technology
[0002] In the high-strength door structure of railcars, traditional doorposts are complex from design to manufacturing. First, stainless steel plates are bent to fixed dimensions to form cap-shaped posts. Then, two identical cap-shaped posts are welded to the inner and outer panels respectively. Finally, the finished product is welded to the angled door frame. The doorpost manufacturing process requires more than a dozen steps and hundreds of welding points. This results in complex load transfer, easily leading to load singularities and stress concentration, which is detrimental to the long-term operation of the vehicle. Utility Model Content
[0003] The purpose of this application is to provide a non-standard door post and a railcar door structure to solve the aforementioned technical problems in the prior art, mainly including the following:
[0004] The first aspect of this application provides an irregularly shaped door post, comprising: a post body, the post body having a hollow structure; the post body is formed by connecting an upper side, a first side, a lower side, and a second side end to end in sequence;
[0005] The lower edge is formed by connecting the first horizontal edge, the first vertical edge, the second horizontal edge, the second vertical edge, and the third horizontal edge in sequence along the length direction to form a bent structure;
[0006] In particular, the first and third horizontal edges are staggered along the width direction.
[0007] To further improve the implementation of this application, the following structure is specifically adopted: the length of the first horizontal side is greater than the length of the third horizontal side.
[0008] To further improve the implementation of this application, the following structure is specifically adopted: the length of the second horizontal side is less than the length of the third horizontal side.
[0009] To further improve the implementation of this application, the following structure is specifically adopted: the misalignment distance between the first horizontal edge and the third horizontal edge is greater than the misalignment distance between the second horizontal edge and the third horizontal edge.
[0010] To further improve the implementation of this application, the following configuration structure is adopted: the dimension of the first side in the width direction is smaller than the dimension of the second side in the width direction.
[0011] To further improve the implementation of this application, the following configuration structure is adopted: the first vertical edge and the second vertical edge located on both sides of the second horizontal edge are arranged in parallel, and the first vertical edge and the second vertical edge can overlap.
[0012] To further improve the implementation of this application, the following structure is specifically adopted: the connection between the upper side, the first side, the lower side, and the second side is a rounded transition.
[0013] To further improve the implementation of this application, the following structure is specifically adopted: multiple process holes are provided at intervals on the first and third horizontal sides.
[0014] To further improve the implementation of this application, the following structure is specifically adopted: the material of the column is stainless steel.
[0015] The second aspect of this application provides a doorway structure for a railcar, including the aforementioned irregular doorpost.
[0016] This application has at least the following technical advantages over the prior art:
[0017] The irregular door post provided in this application has an inverted convex cross section, and the first and third horizontal sides are staggered in the width direction. This results in a simple door post design, simple processing technology, reduced weight, and significantly improved strength. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic cross-section of the irregular-shaped gatepost in this application. Figure 1 ;
[0020] Figure 2 This is a schematic cross-section of the irregular-shaped gatepost in this application. Figure 2 .
[0021] In the picture:
[0022] 10. Column; 11. Top; 12. First side; 13. First horizontal side; 14. First vertical side; 15. Second horizontal side; 16. Second vertical side; 17. Third horizontal side; 18. Second side; 20. Bottom. Detailed Implementation
[0023] The following description provides many different embodiments or examples for implementing various features of this application. The elements and arrangements described in the specific examples below are only for concise expression of this application and are merely examples, not intended to limit this application.
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to represent selected embodiments of this application.
[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.
[0026] In this application, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" a first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] The first aspect of this application provides an irregularly shaped door post, such as... Figures 1-2 As shown, it includes: a column 10, which is a hollow structure; the cross-sectional shape of the column 10 is an inverted convex shape. For example, the column 10 is formed by connecting the upper side 11, the first side 12, the lower side 20, and the second side 18 in sequence to form a closed structure.
[0028] In this application, the length direction is the x-direction and the width direction is the y-direction. The lower side 20 is formed by connecting the first horizontal side 13, the first vertical side 14, the second horizontal side 15, the second vertical side 16, and the third horizontal side 17 end to end along the length direction to form a bent structure; wherein, along the width direction, the first horizontal side 13 and the third horizontal side 17 are staggered.
[0029] For example, the upper side 11 is arranged along the x-direction, and the two ends of the upper side 11 are perpendicularly connected to the first side 12 and the second side 18, respectively. The first horizontal side 13 is arranged along the x-direction, and the first horizontal side 13 is located between the first side 12 and the first vertical side 14. The two ends of the first horizontal side 13 are perpendicularly connected to the first side 12 and the first vertical side 14, respectively. The two ends of the second horizontal side 15 are perpendicularly connected to the first vertical side 14 and the second vertical side 16, respectively. The second horizontal side 15, the first vertical side 14 and the second vertical side 16 form a U-shape. The two ends of the third horizontal side 17 are perpendicularly connected to the second side 18 and the second vertical side 16, respectively.
[0030] Preferably, in the y-direction, the first horizontal edge 13 and the third horizontal edge 17 are at different dimensions, that is, in the y-direction, the first horizontal edge 13 and the third horizontal edge 17 are at different distances relative to the upper edge 11.
[0031] Therefore, the irregular door post provided in this application has an inverted convex cross section, and the first horizontal side 13 and the third horizontal side 17 are staggered in the width direction. The door post design is simple, the processing technology is simple, the weight is reduced, and the strength is significantly improved.
[0032] According to some alternative embodiments, along the x-direction, the length of the first horizontal side 13 is greater than the length of the third horizontal side 17. This allows for increased door movement space while maintaining precise alignment with the side walls, based on stress balance.
[0033] According to some alternative embodiments, along the x-direction, the length of the second horizontal side 15 is less than the length of the third horizontal side 17, that is, the length of the second horizontal side 15 is less than the length of the first horizontal side 13 and the length of the third horizontal side 17. For example, the length of the second horizontal side 15 is 0mm-15mm.
[0034] According to some alternative embodiments, in the y direction, the misalignment distance d1 between the first horizontal side 13 and the third horizontal side 17 is greater than the misalignment distance d2 between the second horizontal side 15 and the third horizontal side 17, that is, the length of the first vertical side 14 is greater than the length of the second vertical side 16, so as to avoid the protrusion formed by the second horizontal side 15 and the second vertical side 16 being too high, resulting in uneven force distribution.
[0035] According to some alternative embodiments, the first side 12 is smaller in width direction than the second side 18, which can save the installation space of the door, reduce weight, and ensure a perfect fit between the doorway and the door and side wall.
[0036] According to some optional embodiments, the first vertical edge 14 and the second vertical edge 16 located on both sides of the second horizontal edge 15 are arranged in parallel, and the first vertical edge 14 and the second vertical edge 16 may overlap, such as... Figure 2As shown, the gap between the first vertical side 14 and the second vertical side 16 is 0mm-3mm.
[0037] According to some optional embodiments, the connection between the upper side 11, the first side 12, the lower side 20, and the second side 18 is a rounded transition to avoid stress concentration.
[0038] According to some alternative embodiments, a plurality of process holes are provided at intervals on the first vertical side 14 and the third horizontal side 17. For example, the number and position distribution of the process holes can be arranged according to the requirements of welding and weight reduction of the column.
[0039] According to some alternative embodiments, the column 10 is made of stainless steel.
[0040] In the above scheme, the material of column 10 is set as stainless steel. Stainless steel has the characteristics of corrosion resistance, high strength and strong plasticity, which can make column 10 have higher strength.
[0041] The second aspect of this application provides a railcar doorway structure, including the aforementioned irregularly shaped doorpost. The railcar doorway structure also includes an outer panel, with the irregularly shaped doorpost welded to the outer panel. Compared to traditional doorway structures, this design is simpler, improves the strength and rigidity of the doorway structure, thereby meeting the load-bearing requirements of the doorway, resulting in a more concise doorway structure and more uniform force transmission.
[0042] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A type of irregularly shaped door post, characterized in that, include: The column (10) is a hollow structure; the column (10) is formed by connecting the top side (11), the first side (12), the bottom side (20), and the second side (18) end to end in sequence; The lower edge (20) is formed by connecting the first horizontal edge (13), the first vertical edge (14), the second horizontal edge (15), the second vertical edge (16), and the third horizontal edge (17) along the length direction to form a bent structure; Along the width direction, the first horizontal edge (13) and the third horizontal edge (17) are staggered.
2. The irregularly shaped door post as described in claim 1, characterized in that, The length of the first horizontal side (13) is greater than the length of the third horizontal side (17).
3. The irregularly shaped door post as described in claim 2, characterized in that, The length of the second horizontal side (15) is less than the length of the third horizontal side (17).
4. The irregularly shaped door post as described in claim 1, characterized in that, The misalignment distance between the first horizontal edge (13) and the third horizontal edge (17) is greater than the misalignment distance between the second horizontal edge (15) and the third horizontal edge (17).
5. The irregularly shaped door post as described in claim 1, characterized in that, The first side (12) is smaller in the width direction than the second side (18).
6. The irregularly shaped door post as described in claim 1, characterized in that, The first vertical edge (14) and the second vertical edge (16) located on both sides of the second horizontal edge (15) are arranged in parallel, and the first vertical edge (14) and the second vertical edge (16) can overlap.
7. The irregularly shaped door post as described in claim 1, characterized in that, The connection between the upper side (11), the first side (12), the lower side (20), and the second side (18) is a circular arc transition.
8. The irregularly shaped door post as described in claim 1, characterized in that, Multiple process holes are provided at intervals on the first vertical side (14) and the third horizontal side (17).
9. The irregularly shaped door post as described in claim 1, characterized in that, The material of the column (10) is stainless steel.
10. A doorway structure for a railcar, characterized in that, Including the irregularly shaped door post as described in any one of claims 1-9.