Outer windshield for mounting on outer end wall of train body

Abstract

The utility model relates to an outer windshield used for being installed on an outer end wall of a train body of a train. The outer windshield comprises a windshield frame (1) and a windshield body (2), and the windshield frame is suitable for being connected to the outer end wall. The windshield main body (2) is an elastic piece and comprises a connecting end connected to the windshield frame (1) and a main body part (21) extending from the connecting end; wherein the connecting end is connected to the windshield frame (1) in a clamping manner. Due to the fact that the connecting end is connected to the windshield frame (1) in the clamping mode, a hole used for connection is not formed in the connecting end of the windshield body, and the problem that the connecting hole is deformed due to the fact that the elastic windshield body (2) is stressed in the long-term use process is solved. In addition, the appearance problem caused by the fact that fasteners such as bolts and nuts are exposed on the outer side of the outer windshield is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of parts of railway vehicle, especially to an outer wind screen for being installed on the outer end wall of train body. BACKGROUND

[0002] For the train with multiple carriages such as railway train, in order to reduce the wind resistance generated when the train runs at high speed, the outer wind screen is arranged on the outer end wall of the body of adjacent carriages, so that the distance between the two carriages at the position of the wind screen is reduced to reduce the wind resistance, and when the vehicle passes through the curve, the elastic outer wind screen can adapt to the requirements of the vehicle passing through the curve section due to its easy compression and deformation characteristics.

[0003] The outer wind screen of the prior art can include a wind screen body made of rubber and having a U-shaped cross section, and an outer frame and an inner frame made of metal. The outer frame has a countersunk hole, and the outer end of the U-shaped wind screen body is fixed to the outer frame by using a countersunk bolt, which makes the countersunk bolt exposed. In order to have a good appearance, the countersunk bolt needs to be painted with paint consistent with the body after installation, which makes the operation complex, and the effect is difficult to guarantee due to manual painting. Moreover, when the train passes through the curve section, the wind screen body is subjected to a large force, especially at the connection position of the bolt, which causes a large stress. After long-term operation of the train, the connection hole of the wind screen body through the bolt is deformed obviously or even exposed.

[0004] Moreover, the inner end of the U-shaped wind screen body is fixed to the inner frame, which makes the whole assembly process complex. After the outer frame is installed, sealing glue needs to be applied between the outer frame and the body. Moreover, since the outer end of the wind screen body and the outer frame, and the inner end and the inner frame are connected by a plurality of bolts arranged at intervals, the assembly efficiency is low. SUMMARY

[0005] The utility model aims at solving at least one of the above problems and / or other problems in the prior art.

[0006] To achieve the above-mentioned purpose, according to one aspect of the utility model, an outer wind screen for being installed on the outer end wall of the body of train is provided, which comprises a wind screen frame and a wind screen body. The wind screen frame is adapted to be connected to the outer end wall; the wind screen body is an elastic member, which comprises a connecting end connected to the wind screen frame and a main body part extending from the connecting end, and the connecting end is connected to the wind screen frame in a clamping manner, in other words, no hole for connecting the wind screen body to the wind screen frame is arranged on the connecting end.

[0007] In this design, the connecting end of the windshield body is snapped onto the windshield frame, connecting to the frame via a snap-fit ​​method without using connecting holes. Compared to existing technologies, this avoids the problem of deformation at the connecting holes caused by stress on the flexible windshield body during long-term use, and also avoids the aesthetic problems caused by fasteners such as bolts, nuts, and connecting holes being exposed on the outside of the windshield.

[0008] According to one embodiment of this invention, the connecting end of the windshield body covers the outer side of the windshield frame in the lateral direction of the vehicle body. That is, the windshield frame is not visible from the outside of the train. This structure allows the windshield body to directly contact the outer end wall of the vehicle body, reducing the connection area between the windshield frame and the outer end wall, and reducing the need for subsequent sealing with sealant after the windshield frame and outer end wall are fixed.

[0009] According to one embodiment of the present invention, the connecting end of the windshield body includes a first branch and a second branch. The first branch is adapted to be press-fitted between the windshield frame and the outer end wall in an interference fit manner. The outer windshield also includes a plurality of spaced-apart fixing components that press the second branch against the windshield frame on the inner side of the connecting end. In this example, the windshield body is tightly connected to the windshield frame by pressing the outer side of the first branch and tensioning the inner side of the second branch.

[0010] According to one example of the present invention, the windshield frame includes a frame body and a fixing portion formed at the outer end of the frame body in the transverse direction of the vehicle body. The first branch and the second branch are configured such that when the frame body is connected to the outer end wall, the first branch abuts against the outer end wall in an interference fit manner by the compression of the fixing portion, and the second branch is fixed to the fixing portion.

[0011] According to one embodiment of the present invention, the fixing part includes a connecting section and a pressing section. The connecting section extends vertically from one end of the frame body, and the pressing section extends vertically from the side of the connecting section opposite to the frame body. The thickness of the end portion of the first branch is greater than the distance from the pressing section to the side of the frame body near the outer end wall. This structure ensures that when the windshield frame is fixed to the outer end wall, the windshield frame tightly presses the windshield body against the outer end wall.

[0012] According to one embodiment of the present invention, the fixing portion further includes a stop portion extending perpendicularly from the crimping portion toward the frame body, the distance between the stop portion and the connecting portion being less than the width of the end portion of the first branch. This structure allows the first branch of the windshield body to be interference-fitted into the groove between the stop portion and the connecting portion, enhancing the connection strength between the windshield body and the windshield frame.

[0013] According to one example of the present invention, the fixing part further includes a hook-shaped section disposed on the side of the crimping section opposite to the connecting section, the free end of the hook-shaped section being bent inward in the transverse direction of the vehicle body, and the second branch being configured to engage with the hook-shaped section.

[0014] According to one example of the present invention, the fixing part further includes a fixing section extending from the connecting section in a direction perpendicular to the frame body and having a fixing hole, and the second branch is disposed between the fixing section and the hook-shaped section and clamped via the fixing component.

[0015] According to one example of the present invention, the fixing component includes a fastening bolt, which is threadedly connected to the fixing section through the fixing hole having internal threads, and the end of the fastening bolt is used to abut the second branch against the hook-shaped section.

[0016] According to one example of the present invention, the fixing assembly further includes a clamping member inserted between the fixing section and the second branch, wherein the surface of the clamping member facing the fixing section is provided with a groove for the end of the fastening bolt to abut.

[0017] According to one example of the present invention, the fixing component further includes an anti-loosening nut fitted onto the fastening bolt on the side of the fixing section opposite to the clamping member.

[0018] According to one example of this utility model, the free end of the main body of the windshield body, opposite to the connecting end, is in a suspended state. Compared to the prior art where the inner and outer ends of the windshield body are respectively fixed to the outer frame and the inner frame, the outer windshield in this example is only connected to the outer side of the windshield frame at the connecting end of the windshield body, with the other end in a suspended state, thus eliminating the need for an inner frame and saving on the installation work of the inner frame.

[0019] According to one embodiment of this invention, the free end of the main body of the windshield body is bent inward in the lateral direction of the vehicle body. This mechanism facilitates better contact between the free ends of the windshield bodies of two adjacent vehicle compartments, thereby reducing wind resistance. Attached Figure Description

[0020] The features and advantages of the present application will be appreciated through the following detailed description, taken in conjunction with the accompanying drawings. It is to be understood that the following drawings are not necessarily to scale, and that the specific elements of the drawings are merely illustrative and not intended to be limiting. It is to be understood that the drawings are not to scale, and that the specific elements of the drawings are merely illustrative and not intended to be limiting.

[0021] Figure 1 A perspective view of an outer windshield according to one example embodiment of the present application is shown.

[0022] Figure 2 A perspective view of an outer windshield according to one example embodiment of the present application is shown. Figure 1 An enlarged view of portion A of the outer windshield shown.

[0023] Figure 3 A cross-sectional view of the outer windshield shown along line B-B. Figure 1

[0024] Figure 4 An exploded view of the outer windshield shown. Figure 3

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1. windshield frame; 11, frame main body; 12, fixed portion; 121, connecting portion; 122, crimping portion; 123, stop portion; 124, hook portion; 125, fixed portion; 126, fixed hole; 2, windshield main body; 21, main body portion; 22, first branch; 23, second branch; 3, fixing assembly; 31, fastening bolt; 32, compression piece; 321, groove; 33, lock nut. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described herein with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps and / or structures have not been described in detail in order to not unnecessarily obscure the present application. It will be understood that the present application is not limited to the particular embodiments described herein. Rather, the specific

[0028] In the following description, terms such as "first", "second", etc. are used to describe various elements, and these terms are only used to distinguish the various elements, and are not used to limit the nature, order or number of the elements. The terms "include" and "have" are used to mean an open-ended inclusion, and refer to the presence of additional elements / components in addition to the listed elements / components.​​

[0029] In the following description, for the convenience of description, the outer windscreen of the embodiment has a length direction generally extending along the circumference of the outer end wall of the vehicle body and a width direction perpendicular to the length direction at each place of the outer windscreen. The direction in which the outer windscreen protrudes after being installed on the outer end wall is also referred to as the thickness direction. It should also be noted that the "transverse direction of the vehicle body" referred to herein is consistent with the "width direction" herein, which is the direction in the plane perpendicular to the running direction of the vehicle body. The "length", "width" and "thickness" described below are all based on the length direction, width direction and thickness direction herein.

[0030] Figures 1-4 An outer windscreen according to an embodiment of the present application is shown, which is used to be installed on the outer end wall of the vehicle body of a train. Figure 1 Only a schematic view of a part of the outer windscreen of the train is shown, and the whole outer windscreen can be composed of a plurality of illustrated components. As Figure 1 and Figure 2 shown, the outer windscreen according to this embodiment can include a windscreen frame 1 and a windscreen body 2.

[0031] According to one example of the windscreen frame 1, as Figure 2 shown, the windscreen frame 1 can include a frame body 11 and a fixing portion 12. As Figure 1 and Figure 2 shown from the left side end surface, the frame body 11 is generally plate-shaped to be able to be attached to the outer end wall of the vehicle body, and extends along the circumference of the outer end wall as a whole, whereby the frame body 11 can be defined to have an inner side end portion and an outer side end portion in the width direction of the outer windscreen. A plurality of mounting holes 111 are provided on the frame body 11 in the length direction at intervals, and the frame body 11 can be fixed to the outer end wall by fasteners such as bolts. The fixing portion 12 protrudes from the outer side end portion of the frame body 11 and is generally perpendicular to the frame body 11, and the windscreen body 2 (specifically, the first branch 22 thereof) is abutted to the outer end wall in an interference fit by extrusion of the fixing portion 12, which will be described below.

[0032] Figure 3 A sectional view of the outer windscreen in Figure 1 along the B-B line is shown. Figure 4 An exploded schematic view of the outer windscreen shown in Figure 3 is shown. As Figure 3 and Figure 4 shown, the fixing portion 12 according to the above-mentioned embodiment can include a connecting section 121 and a crimping section 122. The frame body 11 is connected to the outer end wall (not shown in the figure, located Figure 3 , 4The connecting section 121 extends perpendicularly from the left side of the frame body 11 towards the right side away from the outer end wall. The crimping section 122 extends perpendicularly from the end of the connecting section 121 away from the frame body 11 towards the side away from the frame body 11, thereby forming a receiving space between the crimping section 122 and the outer end wall, and the part of the windscreen body 12 can be placed in the receiving space and pressed against the outer end wall for fixation.

[0033] Preferably, the fixing portion 12 can further comprise a stop section 123. With continued reference to Figure 3 and Figure 4 , the stop section 123 is arranged at the end of the crimping section 122 away from the frame body 11 and extends perpendicularly towards the frame body 11 (i.e. towards the left side where the outer end wall is located), thereby stopping the part of the windscreen body 2 inserted into the receiving space, i.e. the end of the windscreen body 2 is clamped by the groove formed by the connecting section 121, the crimping section 122 and the stop section 123, preventing the windscreen body 2 from falling off the windscreen frame 1.

[0034] With reference to Figure 3 and Figure 4 , the fixing portion can further comprise a hook section 124. The hook section 124 is arranged at the side of the crimping section 122 away from the stop section 123, thereby forming a substantially "T" shape structure with the crimping section 122 and the stop section 123, and the free end of the hook section 124 is bent towards the side where the frame body 11 is located (i.e. the inner side in the width direction of the vehicle body), and the hook section 124 is used to engage with the end of the second branch 23 of the connecting end of the windscreen body 2 (which will be described below).

[0035] Further, the fixing portion 12 can further comprise a fixing section 125. The fixing section 125 extends from the connecting section 121 in the direction away from the outer end wall, thereby forming a receiving space between the fixing section 125 and the hook section 124, and the part of the windscreen body 2 can be placed in the receiving space.

[0036] Preferably, the outer windscreen can further comprise a plurality of fixing assemblies 3 arranged on the fixing section 125 of the windscreen frame 1 in a spaced manner as shown in Figure 1 . The fixing section 125 is provided with fixing holes 126 arranged in a spaced manner along the length direction of the fixing section 125, and each fixing hole 126 is arranged with a corresponding fixing assembly 3. The part of the windscreen body 2 placed in the receiving space can be pressed by the fixing assembly 3.

[0037] With reference to Figure 2As shown, the windscreen body 2 according to the present embodiment can be an elastic member made of rubber, silicon or the like, and can include a connecting end connected to the fixing portion 12 of the windscreen frame 1 and a body portion 21 extending from the connecting end. When the windscreen body 2 is connected to the windscreen frame 1, the connecting end thereof covers the outer side of the windscreen frame 1. The body portion 21 of the windscreen body 2 extends in a direction substantially perpendicular to and away from the frame body 11, so that the body portion 21 is in a suspended state. Preferably, the free end of the body portion 21 at the side away from the connecting end is bent towards the center of the entire outer windscreen, so that the free ends of the body portions 21 of the windscreen bodies 2 of the two outer windscres can elastically abut against each other to reduce wind resistance after the outer windscreen is installed on the outer end walls of the two adjacent car bodies respectively.

[0038] Specifically, the connecting end of the windscreen body 2 can include a first branch 22 and a second branch 23, as shown in Figure 2 The first branch 22 is generally in the shape of a reverse hook and covers the outer side portion of the fixing portion 12. The second branch 23 is generally in the shape of a hook and covers the inner side portion of the fixing portion 12, so that the first branch 22 and the second branch 23 form an engaged state with the fixing portion 12 from two opposite directions respectively. The first branch 22 can be crimped to the outer end wall in an interference fit manner via the fixing portion 12 of the windscreen frame 1. The end of the second branch 23 is bent, so that it can engage with the hook-shaped section 124 of the fixing portion 12 of the windscreen frame 1. At least a portion of the second branch 23 is located between the hook-shaped section 124 and the fixing section 125 of the windscreen frame 1, engages with the hook-shaped section 124 and is pressed against the windscreen frame 1 via the corresponding fixing assembly 3 passing through the fixing hole 126.

[0039] Thus, through the structure of the present embodiment, the connecting end of the windscreen body 2 is connected to the windscreen frame 1 in a clamping manner, in other words, no hole for connection is provided on the connecting end of the windscreen body 2. Compared with the prior art, the problem that the connecting hole of the elastic windscreen body 2 is deformed due to stress during long-term use is avoided, and the appearance problem caused by the fasteners such as bolts, nuts and the like being exposed on the outer side of the outer windscreen is also avoided.

[0040] Referring to Figure 3 and Figure 4 As shown, the frame body 11 is used to be connected to the outer end wall (not shown) on the left side thereof. The first branch 22 according to the present embodiment can include a leading end portion, an intermediate portion and a terminal portion. The intermediate portion and the terminal portion extend into the accommodation space between the fixing portion 12 and the outer end wall, and the intermediate portion is arranged between the stop section 123 of the fixing portion 12 and the outer end wall, and the terminal portion is arranged between the crimping portion 122 of the fixing portion 12 and the outer end wall.

[0041] Continuing to refer to Figure 4The end portion of the first branch 22 is substantially rectangular in cross section. The thickness L of the end portion is greater than the distance from the crimping section 122 to the side of the frame body 11 near the outer end wall (i.e. the distance from the crimping section 122 to the outer end wall when the frame body 11 is connected to the outer end wall), so that the end portion can be pressed against the outer end wall in an interference fit via the crimping section 122. Preferably, the width H of the end portion is greater than the distance from the stop section 123 to the connecting section 121, so that the end portion of the first branch 22 can be pressed between the stop section 123 and the connecting section 121 in an interference fit when the first branch 22 is in the engaged state with the fixing portion 12.

[0042] With continued reference to Figure 3 and Figure 4 , the thickness of the middle portion of the first branch 22 is greater than the distance from the stop section 123 to the side of the frame body 11 near the outer end wall (i.e. the distance from the stop section 123 to the outer end wall when the frame body 11 is connected to the outer end wall), so that the middle portion can be pressed against the outer end wall in an interference fit via the stop section 123. In this way, the middle portion and the end portion of the first branch 22 arranged into the receiving space can be pressed against the outer end wall in an interference fit via the fixing portion 12, ensuring the pressing of the screen body 2 and avoiding the exposure of the screen frame 1.

[0043] With continued reference to Figure 3 and Figure 4 , the fixing assembly 3 according to the present embodiment can include a fastening bolt 31. The fixing hole 126 on the fixing section 125 is provided with internal threads, and the fastening bolt 31 is screwed into the fixing hole 126 from bottom to top and is screwed with the external threads of the fixing section 125.

[0044] Preferably, the fixing assembly 3 can further include a pressing member 32 inserted between the fixing section 125 and the second branch 23, as shown in Figures 2 to 4 . The pressing member 32 extends substantially along the length direction of the outer screen and is substantially rectangular in cross section, and the surface of the pressing member 32 facing the fixing section 125 is provided with a recess 321. Thus, after the fastening bolt 31 passes through the fixing hole 126, the end of the fastening bolt 31 abuts into the recess 321, and the pressing member 32 maintains the continuous and balanced pressing force on the second branch 23. By the cooperation of the fixing assembly 3 and the hook section 124 of the screen frame 1, the second branch 23 can be tightly engaged in the receiving space between the hook section 124 and the pressing member 32.

[0045] Further, the fixing assembly 3 can further include a lock nut 33 sleeved on the fastening bolt 31, as shown in Figure 3 and Figure 4The locking nut 33 is arranged on the side of the fixed section 125 away from the compression member 32 and is screwed with the fastening bolt 31. After the fastening bolt 31 is screwed tightly against the groove 321 of the compression member 32, the locking nut 33 is screwed to lock the relative position of the fastening bolt 31 and the fixed section 125, so as to prevent the fastening bolt 31 from loosening during use of the outer windshield.

[0046] As described above, according to the structure of the outer windshield of the embodiment, the connecting end of the windshield body 2 is connected to the windshield frame 1 in a clamping manner, in other words, no hole for connection is arranged on the connecting end of the windshield body 2. Compared with the prior art, the problem that the elastic windshield body 2 is deformed at the connecting hole due to stress during long-term use is avoided, and the appearance problem caused by the fastening member such as the bolt, the nut and the like being exposed to the outside of the outer windshield is avoided. Moreover, the connecting end of the windshield body 2 covers the outside of the windshield frame 1, and the first branch 22 is abutted to the outer end wall in an interference fit through the fixed section 12, so that the windshield frame 1 is not exposed. Moreover, the first branch 22 of the windshield body directly contacts the vehicle body, the connecting area of the windshield frame 1 and the outer end wall of the vehicle body is reduced, and the process of applying sealant after the windshield frame and the outer end wall are fixed is avoided. Furthermore, compared with the prior art in which the outside end and the inside end of the windshield body are respectively fixed to the outer frame and the inner frame, the outer windshield of the embodiment only connects the connecting end of the windshield body 2 to the outside of the windshield frame 1, and the free end opposite to the connecting end of the windshield body 2 is in a suspended state, that is, the windshield body is a single-sided mechanism, and the inner frame is not needed to be connected, so that the inner frame is cancelled, thereby saving the installation work of the inner frame. According to the outer windshield of the embodiment, the elastic performance of the windshield body is utilized, and the clamping design is adopted in the length direction of the outer windshield by the first branch 22 and the second branch 23, so that the windshield body 2 can be uniformly stressed in the whole length, the stress performance is improved, and the problem that the installation hole for the bolt is deformed or even exposed due to excessive stress in the prior art is avoided.

[0047] Various modifications and changes can be made to the embodiments disclosed herein without departing from the scope or spirit of the application. Other embodiments of the application will be apparent to those of ordinary skill in the art from consideration of the specification and practice of the application as disclosed herein. The specification and examples given herein are to be considered exemplary only, and the true scope of the application is indicated by the appended claims, along with the full scope of equivalents to which such claims are entitled.

Claims

1. An outer windscreen for mounting on an outer end wall of a train car body, characterized by, The outer weather strip comprises: a weather strip frame (1) adapted to be connected to the outer end wall; and a weather strip body (2) which is a resilient member and includes a connection end connected to the weather strip frame (1) and a body portion (21) extending from the connection end; wherein the connection end is connected to the weather strip frame (1) in a snap-fit manner.

2. The outer windshield of claim 1, wherein, The connection end covers the outside of the weather strip frame (1) in the lateral direction of the vehicle body.

3. The outer windshield according to claim 1 or 2, characterized in that No hole for connecting the weather strip body (2) to the weather strip frame (1) is provided on the connection end.

4. The outer windshield of claim 3, wherein, The connection end of the weather strip body includes a first branch (22) adapted to be crimped between the weather strip frame (1) and the end wall in an interference fit, and a second branch (23), and the outer weather strip further includes a plurality of spaced-apart fixing members (3) that press the second branch (23) and the weather strip frame (1) against each other on the inner side of the connection end.

5. The outer windshield of claim 4, wherein, The weather strip frame (1) includes a frame body (11) and a fixing portion (12) formed at the outer end of the frame body in the lateral direction of the vehicle body, and the first branch and the second branch are configured such that, when the frame body (11) is connected to the outer end wall, the first branch (22) is pressed against the outer end wall in an interference fit by the fixing portion (12), and the second branch (23) is fixed to the fixing portion (12).

6. The outer windshield of claim 5, wherein, The fixing portion (12) includes a connection section (121) extending perpendicularly from one end of the frame body (11) and a crimping section (122) extending perpendicularly from the side of the connection section (121) facing away from the frame body, and the thickness (L) of the end portion of the first branch (22) is greater than the distance from the crimping section (122) to the side of the frame body (11) close to the outer end wall.

7. The outer windshield of claim 6, wherein, The fixing portion (12) further includes a stop section (123) extending perpendicularly from the crimping section (122) in the direction of the frame body (11), and the distance between the stop section (123) and the connection section (121) is less than the width (H) of the end portion of the first branch (22).

8. The outer windshield of claim 7, wherein, The fixing portion (12) further includes a hook section (124) provided on the side of the crimping section (122) facing away from the connection section (121), and the free end of the hook section is bent inward in the lateral direction of the vehicle body, and the second branch (23) is configured to engage with the hook section (124).

9. The outer windshield of claim 8, wherein, The fixing portion (12) further includes a fixing section (125) extending from the connection section (121) in a direction perpendicular to the frame body (11) and provided with a fixing hole (126), and the second branch (23) is provided between the fixing section (125) and the hook section (124) and clamped via the fixing members (3).

10. The outer windshield of claim 9, wherein, The fixing assembly (3) comprises a fastening bolt (31) which is threadedly connected with the fixing section (125) through the fixing hole (126) provided with an internal thread, and an end of the fastening bolt is used to abut the second branch (23) against the hook-shaped section (124).

11. The outer windshield of claim 10, wherein, The fixing assembly (3) further comprises a presser (32) inserted between the fixing section (125) and the second branch (23), a surface of the presser (32) facing the fixing section (125) is provided with a groove (321) for abutting the end of the fastening bolt (31).

12. The outer windshield of claim 11, wherein, The fixing assembly (3) further comprises a lock nut (33) sleeved on the fastening bolt (31) on a side of the fixing section (125) away from the presser (32).

13. The outer windshield of any of claims 1-2 and 4-12, wherein, The free end of the main body (21) of the windscreen body (2) opposite to the connecting end is in a suspended state.

14. The outer windshield of claim 13, wherein, The free end is in a state of being bent inward in the transverse direction of the vehicle body.

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