Gusset plate pin shaft connecting structure
By welding pads with a thickness greater than the node plate on the node plate and performing full penetration welding, the problem of unreasonable design of the pin holes of the bridge node is solved, a more stable connection and corrosion resistance is achieved, and the load-bearing capacity of the bridge node is improved.
Patent Information
- Application Number
- CN202422496049.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The unreasonable design of the bridge node pin holes leads to unstable connections, easy to corrode at the welding site, excessive shear force is subject to, and easy to damage under long-term loads.
Weld the pad plate with a thickness greater than the node plate on the node plate, and fully penetrated welding and surrounding welding are performed between the node plate and the pad plate to increase the area of the pin hole wall and prevent rusting and corrosion on the bonding surface from entering water.
Enhance the uniformity of the pin shaft, improve the bearing capacity, prevent the connection from loosening, improve the welding quality, and avoid corrosion problems.
Smart Images
Figure CN223255823U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge node plates, in particular to a node plate pin connection structure. Background Art
[0002] The design of bridge node pin holes is often limited by engineering requirements and welding conditions, resulting in unreasonable node pin hole design, local damage or cracks; the pin shaft and pin hole do not fit well during assembly, resulting in unstable connections; the bridge node pin holes are subjected to excessive shear forces and repeated loads for a long time, which leads to damage to the pin hole walls.
[0003] In order to solve the above problems, Figure 7 、 8 As shown, in the prior art, a layer of pad 20 is often attached to the surface of the node plate 10 and welded around the pad 20, and then the pin 30 is connected to the pin hole 40 on the pad 20 and the node plate 10 to increase the contact area between the pin hole 40 of the node plate 10 and the pad 20 and the surface of the pin 30, so that the pin 30 is firmly connected to the node plate 10 and the pad 20.
[0004] However, in the prior art, there is a large contact surface between the gusset plate 10 and the backing plate 20. Under environmental influences, water may enter between the contact surfaces, causing rust and corrosion, resulting in loose connections. Utility Model Content
[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a node plate pin connection structure.
[0006] In order to solve the above problems, the present invention adopts the following technical solutions:
[0007] A node plate pin connection structure comprises a node plate, a pad and a pin, wherein the node plate is provided with an embedded hole passing through the node plate, the embedded hole matches the size and shape of the pad, the thickness of the pad is greater than the thickness of the node plate, the pad is connected in the embedded hole, its back side is flush with the back side of the node plate and its front side protrudes from the front side of the node plate, the pad is provided with a pin hole passing through the pad, the pin hole is equal to the diameter of the pin, the pin is connected in the pin hole, the edge of the embedded hole on the back side of the node plate is welded to the edge of the back side of the pad, and the edge of the embedded hole on the front side of the node plate is welded to the side wall surfaces around the pad.
[0008] Preferably, a groove is provided on the back edge of the pad.
[0009] Preferably, full penetration welding is adopted between the groove on the back edge of the backing plate and the edge of the embedded hole on the back of the node plate.
[0010] Preferably, the edges of the embedded holes on the front surface of the gusset plate and the peripheral side wall surfaces of the backing plate are welded around the edges by fillet welds.
[0011] Beneficial effects of the utility model:
[0012] Compared with the prior art, the advantages of the present invention are:
[0013] The utility model increases the wall area of the pin hole by welding a thicker pad in the node plate, so that the pin shaft is subjected to more uniform force and the bearing capacity is increased; and the pad is welded in the node plate in an embedded manner, and there is no large fitting surface between the node plate and the pad, which prevents the possibility of water ingress and rust corrosion between the fitting surfaces, resulting in loose connections. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the front side of the utility model;
[0015] Figure 2 It is a structural diagram of the back of the utility model;
[0016] Figure 3 This is a schematic diagram of the exploded parts of the front side of the utility model;
[0017] Figure 4 This is a schematic diagram of the exploded parts on the back of the utility model;
[0018] Figure 5 for Figure 1 Cross-sectional view of section AA;
[0019] Figure 6 for Figure 5 A partial enlarged view of point B in the middle
[0020] Figure 7 Schematic diagram of the parts explosion of the prior art
[0021] Figure 8 It is a partial enlarged view of the prior art. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "set / mounted," "sleeved," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0025] See also Figure 1-6 The utility model provides a technical solution: a node plate pin connection structure, including a node plate 1, a pad 2 and a pin 3, the node plate 1 is provided with an embedding hole 4 that passes through the node plate 1, the embedding hole 4 matches the size and shape of the pad 2, the thickness of the pad 2 is greater than the thickness of the node plate 1, the pad 2 is connected in the embedding hole 4, its back side is flush with the back side of the node plate 1 and the front side protrudes from the front side of the node plate 1, the pad 2 is provided with a pin hole 5 that passes through the pad 2, the pin hole 5 is equal to the diameter of the pin 3, the pin 3 is connected in the pin hole 5, the edge of the embedding hole 4 on the back side of the node plate 1 is welded to the edge of the back side of the pad 2, and the edge of the embedding hole 4 on the front side of the node plate 1 is welded to the side wall surfaces around the pad 2.
[0026] The utility model increases the wall area of the pin hole 5 by welding a thicker pad 2 in the node plate 1, so that the pin shaft 3 is subjected to force more evenly and the bearing capacity is increased; and the pad 2 is welded in the node plate 1 in an embedded manner, and there is no large fitting surface between the node plate 1 and the pad 2, which prevents the fitting surface from being rusted and corroded by water and causing the connection to become loose.
[0027] Furthermore, a groove 6 is provided on the back edge of the pad 2, and full penetration welding is adopted between the groove 6 on the back edge of the pad 2 and the edge of the embedded hole 4 on the back of the node plate 1, so as to avoid direct contact of the weld with the external environment and corrosion of the weld, thereby optimizing the welding quality, improving the weld environment, and making it easy to ensure the quality.
[0028] Furthermore, the edges of the embedded holes 4 on the front surface of the gusset plate 1 and the surrounding side wall surfaces of the backing plate 2 are welded all around by fillet welds, and the structural form is more reasonable.
[0029] In actual processing, the corresponding cutting lines are first drawn on a steel plate of the designed thickness according to the dimensions of the node plate 1 and the pad 2 involved, and the above-mentioned steel plate is cut to obtain the node plate 1. A thicker steel plate is cut according to the dimensions of the pad 2 and the pin hole 5 involved to obtain the pad 2. According to the welding specifications, the pad 2 is milled to form the groove 6. Then, according to the design requirements, full penetration welding is performed on the back of the node plate 1 and the groove 6 of the pad 2, and then the front of the node plate 1 is welded to the pad 2 all around. After welding is completed, the pin shaft 3 is installed in the pin hole 5 area to form a new structure at the bridge node.
[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.
[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gusset plate pin connection structure, characterized in that: The invention comprises a node plate (1), a backing plate (2) and a pin (3), wherein the node plate (1) is provided with an embedding hole (4) penetrating the node plate (1), the embedding hole (4) matches the size and shape of the backing plate (2), the thickness of the backing plate (2) is greater than the thickness of the node plate (1), the backing plate (2) is connected in the embedding hole (4), the back of the backing plate (2) is flush with the back of the node plate (1) and the front protrudes from the front of the node plate (1), the backing plate (2) is provided with a pin hole (5) penetrating the backing plate (2), the pin hole (5) and the pin shaft (3) have the same diameter, the pin shaft (3) is connected in the pin hole (5), the edge of the embedding hole (4) located on the back of the node plate (1) is welded to the edge of the back of the backing plate (2), and the edge of the embedding hole (4) located on the front of the node plate (1) is welded to the side wall surface around the backing plate (2).
2. A gusset plate pin connection structure according to claim 1, characterized in that: The back edge of the pad (2) is provided with a groove (6).
3. A gusset plate pin connection structure according to claim 2, characterized in that: Full penetration welding is adopted between the groove (6) at the back edge of the backing plate (2) and the edge of the embedded hole (4) at the back of the node plate (1).
4. The gusset plate pin connection structure according to claim 1, characterized in that: The edges of the embedded holes (4) on the front side of the node plate (1) and the surrounding side wall surfaces of the backing plate (2) are welded around the edges through fillet welds.