Hinge with herringbone section

Abstract

The invention discloses a fold with a herringbone section, which relates to the technical field of railway transportation equipment and comprises a fold body, a round hole part arranged at one end of the fold body and a horse leg structure arranged at the other end of the fold body. The round hole part, the hinge body and the horse leg structure are integrally formed in a forging and pressing mode, and a reinforcing assembly is arranged in the middle of the hinge body in the length direction. Overall forging and pressing forming is adopted, an upper end round hole part and a lower end horse leg structure are forged, an upper end rolling round hole and lower end welding horse leg pressing structure of an existing flat steel for the railway open wagon lower side door hinge is improved into the structure of integrally forging the upper end round hole part, the hinge body and the lower end horse leg, and the hinge is prevented from being stretched and broken at the connecting position; meanwhile, a reinforcing assembly is arranged in the middle of the hinge to improve the section modulus of the hinge and improve the deformation resistance of the hinge.

Description

Technical Field

[0001] The present invention relates to the technical field of railway transportation equipment, and more specifically to the technical field of herringbone section folding. Background Art

[0002] The existing patents disclose the following patented technologies on the hinges of the lower side doors of railway open wagons:

[0003] The patent with the publication number CN215632560U and the patent name "A new type of lower side door hinge for railway freight cars" discloses the following structure: including a side door panel, a lower side door window is arranged on the side door panel, a lower side door is arranged outside the lower side door window, a lower side door hinge is arranged on the side door panel, the lower side door hinge includes a hinge strip, a first mounting seat is arranged at one end of the hinge strip, a hanging ring is arranged at the other end of the hinge strip, a hook assembly is arranged at the top of the side door panel, the hook assembly includes a hook matching the hanging ring, a lower side door buckle is arranged at the bottom end of the side door panel, the lower side door buckle includes a fourth mounting seat and a fifth mounting seat, a second rotating shaft is arranged on the fourth mounting seat, a limited position strip is arranged on the second rotating shaft, and a limited position block is arranged on the fifth mounting seat. In the utility model, the operation is convenient, the structure is simple, the applicability is wide, the connection is stable, and the phenomenon of sudden opening will not occur during transportation.

[0004] The patent with the publication number CN218805800U and the patent name "A railway freight car lower side door hinge" discloses the following structure: including a side door panel, the lower side door is movably mounted on the front surface of the side door panel, the front surface of the side door panel is located on one side of the lower side door and fixedly mounted with a hinge mounting seat, the front surface of the hinge mounting seat is provided with mounting grooves near the upper surface and the lower surface, the inside of the hinge mounting seat is provided with a movable groove on one side of the mounting groove, the front surface of the hinge mounting seat is provided with a fixed rod groove in front of the movable groove, and one side of the hinge mounting seat is provided with a torsion spring groove above the fixed rod groove. The railway freight car lower side door hinge described in the utility model can lock the lower side door, has a stable connection, and will not open suddenly during transportation. At the same time, it is no longer necessary to use additional door opening and closing tools to open and close the lower side door 2, making the operation more convenient, and can effectively prevent the lower side door from rebounding after opening, greatly increasing safety.

[0005] The above patent and the existing open railway cars in my country use flat steel for the lower door hinges, which are stretched and deformed, resulting in large door gaps and poor sealing. When loading on site, 1 to 2 layers of woven cloth must be placed on the inside of the lower door, and then a large amount of polyurethane foam glue is sprayed on the outside to caulk the seams. On average, 10 boxes (15 bottles per box) of foam glue are used per train. The price of this type of foam glue is between 170 yuan / box and 180 yuan / box, which adds extra transportation costs. Summary of the invention

[0006] The purpose of the present invention is to provide a hinge with a herringbone cross section in order to solve the technical problem that the lower door hinge of the existing railway open car adopts flat steel, which is stretched and deformed to cause a large door gap and poor sealing.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] The present invention provides a herringbone cross-section hinge, comprising a hinge body, a circular hole portion arranged at one end of the hinge body and a horse leg structure arranged at the other end of the hinge body; the circular hole portion, the hinge body and the horse leg structure are integrally forged, and a reinforcing component is arranged in the middle of the hinge body along the length direction.

[0009] Specifically, this scheme adopts integral forging and forming, adopts forged upper circular hole part and lower horse leg structure, and improves the existing railway open car lower side door hinge with flat steel upper rolled circular hole and lower welded pressed horse leg structure into an integral forged upper circular hole part, hinge body and lower horse leg structure to avoid the hinge from being stretched and broken at the connection; at the same time, a reinforcing component is set in the middle of the hinge to increase the cross-sectional modulus of the hinge and increase the hinge's deformation resistance.

[0010] In one embodiment, an upwardly protruding hollow reinforcement component is provided in the middle portion of the folder body along the length direction.

[0011] In one embodiment, the hollow reinforcement component is a "fish back" shaped hollow reinforcement rib that improves the sectional modulus of the hinge and increases the deformation resistance of the hinge.

[0012] Specifically, a "fish back" hollow reinforcement rib is set in the middle of the hinge to increase the cross-sectional modulus of the hinge and increase the hinge's ability to resist deformation by integral forging.

[0013] In one embodiment, the cross-section of the hollow reinforcement rib is a herringbone structure, which includes an upwardly protruding ridge portion and horizontal portions symmetrically arranged at both ends of the ridge portion. A hollow portion corresponding to the outer contour of the ridge portion is arranged at the bottom of the ridge portion, and the width of the hollow portion gradually increases from top to bottom.

[0014] In one embodiment, the thickness of the circular hole portion is greater than that of the hinge body, and the thickness of the connection between the circular hole portion and the hinge body gradually decreases; the thickness of the hinge body from one end of the circular hole portion to the middle of the horse leg structure gradually decreases.

[0015] In one embodiment, an arc-shaped transition is provided at the connection between each horizontal portion and the convex ridge portion.

[0016] In one embodiment, the horse leg structure includes a first horizontal connecting part, an inclined part and a second horizontal connecting part connected in sequence, the first horizontal connecting part and the second horizontal connecting part are parallel to each other, the height of the second horizontal connecting part is higher than the height of the first horizontal connecting part, the first horizontal connecting part is connected to the folding body at one end away from the inclined part, and the inclined part is inclined outward.

[0017] Specifically, the inclined portion is a slope structure that matches the locking device.

[0018] In one embodiment, arc-shaped transitions are provided at the connections between the first horizontal connecting portion, the inclined portion and the second horizontal connecting portion.

[0019] In one embodiment, the hinge body, the circular hole portion and the horse leg structure are all made of Q345D low alloy steel with a yield strength of 345 MPa.

[0020] Specifically, the hinge body, circular hole part, and reinforcement components all use Q345D low-alloy steel with a yield strength of 345MPa instead of Q235A carbon structural steel with a yield strength of 235MPa, thereby improving the strength grade of the hinge and reducing the chance of breakage due to insufficient strength.

[0021] Specifically, the thickness at the root of the circular hole and the middle of the hinge changes gradually to prevent the hinge from being stretched or broken.

[0022] In one embodiment, a circular hole is provided in the circular hole portion, and the axial direction of the circular hole is orthogonal to the length direction of the folder body.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. This scheme adopts integral forging and forming, adopts forged upper round hole and lower horse leg structure, and improves the existing railway open car lower door hinge with flat steel upper round hole and lower pressed horse leg structure to forged upper round hole and lower horse leg structure, and the integral forging and forming avoids the hinge from being stretched and broken.

[0025] 2. The thickness at the root of the round hole and the middle of the fold changes gradually to prevent the fold from being stretched or broken.

[0026] 3. A "fish back" hollow reinforcement rib is set in the middle of the hinge to increase the cross-sectional modulus of the hinge and increase the hinge's anti-deformation ability by integral forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 yes Figure 1 A directional view of

[0030] Figure 3 yes Figure 2 A top view of

[0031] Figure 4 yes Figure 2 Sectional view at AA in the middle;

[0032] Reference numerals: 1-circular hole portion, 2-folding body, 3-horse leg structure;

[0033] 21 - ridge part, 22 - horizontal part, 23 - hollow part. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and technical effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and 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 therefore cannot be understood as a limitation on the present invention.

[0038] Example 1

[0039] like Figures 1 to 4 As shown, this embodiment provides a herringbone cross-section hinge, comprising a hinge body 2, a circular hole portion 1 arranged at one end of the hinge body 2, and a horse leg structure 3 arranged at the other end of the hinge body 2; the circular hole portion 1, the hinge body 2, and the horse leg structure 3 are integrally forged. A reinforcement component is arranged in the middle of the hinge body 2 along the length direction.

[0040] Specifically, this scheme adopts integral forging and forming, adopts forging upper circular hole part 1 and lower horse leg structure 3, and improves the existing railway open car lower side door hinge with flat steel upper rolled circular hole and lower welded pressed horse leg structure 3 into an integral forging upper circular hole part 1, hinge body 2 and lower horse leg structure 3 to avoid the hinge being stretched and broken at the connection; at the same time, a reinforcing component is arranged in the middle of the hinge to improve the cross-sectional modulus of the hinge and increase the hinge's anti-deformation ability.

[0041] Example 2

[0042] like Figures 1 to 4 As shown, this embodiment provides a herringbone cross-section hinge, including a hinge body 2, a circular hole portion 1 arranged at one end of the hinge body 2, and a horse leg structure 3 arranged at the other end of the hinge body 2; the circular hole portion 1, the hinge body 2 and the horse leg structure 3 are formed by integral forging.

[0043] An upwardly protruding hollow reinforcement component is arranged in the middle of the folder body 2 along the length direction.

[0044] The hollow reinforcement component is a "fish back" shaped hollow reinforcement rib which improves the folding section modulus and increases the folding deformation resistance.

[0045] Specifically, a "fish back" hollow reinforcement rib is set in the middle of the hinge to increase the cross-sectional modulus of the hinge and increase the hinge's ability to resist deformation by integral forging.

[0046] Example 3

[0047] like Figures 1 to 4As shown, this embodiment provides a herringbone cross-section hinge, including a hinge body 2, a circular hole portion 1 arranged at one end of the hinge body 2, and a horse leg structure 3 arranged at the other end of the hinge body 2; the circular hole portion 1, the hinge body 2 and the horse leg structure 3 are formed by integral forging.

[0048] An upwardly protruding hollow reinforcement component is arranged in the middle of the folder body 2 along the length direction.

[0049] The hollow reinforcement component is a "fish back" shaped hollow reinforcement rib which improves the folding section modulus and increases the folding deformation resistance.

[0050] The cross-section of the hollow reinforcement rib is a herringbone structure, which includes an upwardly protruding ridge portion 21 and horizontal portions 22 symmetrically arranged at both ends of the ridge portion 21. A hollow portion 23 corresponding to the outer contour of the ridge portion 21 is arranged at the bottom of the ridge portion 21, and the width of the hollow portion 23 gradually increases from top to bottom.

[0051] The thickness of the circular hole portion 1 is greater than that of the folding body 2, and the thickness of the connection between the circular hole portion 1 and the folding body 2 gradually decreases; the thickness of the folding body 2 from one end close to the circular hole portion 1 to the middle of the horse leg structure 3 gradually decreases.

[0052] An arc-shaped transition is provided at the connection between each horizontal portion 22 and the ridge portion 21 .

[0053] Specifically, the root of the circular hole and the overall thickness of the hinge are gradually changed to prevent the hinge from being stretched or broken.

[0054] Example 4

[0055] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0056] The horse leg structure 3 includes a first horizontal connecting part, an inclined part and a second horizontal connecting part which are connected in sequence. The first horizontal connecting part and the second horizontal connecting part are parallel to each other. The height of the second horizontal connecting part is higher than that of the first horizontal connecting part. The first horizontal connecting part is connected to the folding body 2 at one end away from the inclined part, and the inclined part is inclined outward.

[0057] Specifically, the inclined portion is a slope structure that matches the locking device.

[0058] Arc-shaped transitions are arranged at the connection points of the first horizontal connection part, the inclined part and the second horizontal connection part.

[0059] Example 5

[0060] This embodiment is further optimized on the basis of embodiment 4, specifically:

[0061] The hinge body 2, the circular hole portion 1 and the horse leg structure 3 are all made of Q345D low alloy steel with a yield strength of 345 MPa.

[0062] Specifically, the hinge body 2, the circular hole portion 1, and the reinforcement component all use Q345D low alloy steel with a yield strength of 345MPa to replace the Q235A carbon structural steel with a yield strength of 235MPa, thereby improving the strength grade of the hinge and reducing the probability of breakage due to insufficient strength.

[0063] A circular hole is arranged in the circular hole portion 1 , and the axial direction of the circular hole is orthogonal to the length direction of the folder body 2 .

Claims

1. A herringbone cross-section folding leaf, characterized in that: The invention comprises a folding body (2), a circular hole portion (1) arranged at one end of the folding body (2), and a horse leg structure (3) arranged at the other end of the folding body (2); the circular hole portion (1), the folding body (2), and the horse leg structure (3) are integrally forged, and a reinforcing component is arranged in the middle of the folding body (2) along the length direction.

2. The herringbone cross-section hinge according to claim 1, characterized in that: An upwardly protruding hollow reinforcement component is arranged in the middle of the folding body (2) along the length direction.

3. The herringbone cross-section hinge according to claim 2, characterized in that: The hollow reinforcement component is a "fish back" shaped hollow reinforcement rib which improves the folding section modulus and increases the folding deformation resistance.

4. The herringbone cross-section hinge according to claim 3, characterized in that: The cross section of the hollow reinforcing rib is a herringbone structure, the herringbone structure comprising an upwardly protruding ridge portion (21), and horizontal portions (22) symmetrically arranged at both ends of the ridge portion (21), a hollow portion (23) corresponding to the outer contour of the ridge portion (21) is arranged at the bottom of the ridge portion (21), and the width of the hollow portion (23) gradually increases from top to bottom.

5. The herringbone cross-section hinge according to claim 4, characterized in that: The thickness of the circular hole portion (1) is greater than the thickness of the folding body (2), and the thickness of the connection between the circular hole portion (1) and the folding body (2) gradually decreases; the thickness of the folding body (2) from one end close to the circular hole portion (1) to the middle of the horse leg structure (3) gradually decreases.

6. The herringbone cross-section hinge according to claim 4, characterized in that: An arc-shaped transition is provided at the connection between each horizontal portion (22) and the convex ridge portion (21).

7. The herringbone cross-section hinge according to claim 1, characterized in that: The horse leg structure (3) comprises a first horizontal connection part, an inclined part and a second horizontal connection part which are connected in sequence, the first horizontal connection part and the second horizontal connection part are parallel to each other, the height of the second horizontal connection part is higher than the height of the first horizontal connection part, the first horizontal connection part is connected to the folding body (2) at one end away from the inclined part, and the inclined part is inclined outward.

8. The herringbone cross-section hinge according to claim 7, characterized in that: An arc-shaped transition is arranged at the connection points of the first horizontal connection part, the inclined part and the second horizontal connection part.

9. The herringbone cross-section hinge according to claim 1, characterized in that: The hinge body (2), the circular hole portion (1) and the horse leg structure (3) are all made of Q345D low alloy steel with a yield strength of 345 MPa.

10. The herringbone cross-section hinge according to claim 1, characterized in that: A circular hole is provided in the circular hole portion (1), and the axial direction of the circular hole is orthogonal to the length direction of the folding body (2).

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