Fastening bolt rivet assembly for preventing looseness and interface sideslip of sheet steel structure

Abstract

A fastening bolt rivet assembly for preventing looseness and interface sideslip of a sheet steel structure is suitable for fixing the sheet steel structure and comprises a bolt body and a fixing seat. The bolt body is of a hollow structure with an upper opening and a lower opening, has a certain length and is suitable for being inserted into a through hole in the sheet steel structure to be fixed. The fixing base is arranged at one end of the bolt body and extends outwards by a preset width relative to the circumferential direction of the bolt body, the middle of the fixing base is also of a hollow structure, the bolt body is communicated with the hollow structure of the bolt body and comprises a deformation area, and an outward protruding structure is formed relative to a bolt body after the deformation area is heated to enhance the plasticity of the deformation area and rivet pulling force is applied. The fixing base is matched with the fixing base to fix the thin steel plate; by means of the arrangement, a steel plate needing to be fixed is fixed through cooperation between the formed protruding structure and the fixing base, the fastening and anti-loosening effect is achieved, and the technical problems that riveting equipment is too large in size, and construction is difficult in some narrow and small spaces are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fixed steel plate technical field especially relates to a thin plate steel structure anti -loose interface side slip's fastening bolt rivet subassembly. BACKGROUND

[0002] Steel structure connection refers to the mutual connection between steel structure components or parts. Steel structure connection is widely used in building, bridge and other engineering fields, and its connection mode is crucial to the performance and safety of the structure.

[0003] Traditional connection methods of thin plate steel structure include welding, bolt connection and riveting. Among them, high-strength bolt connection is the most mainstream connection mode, but when the bridge is used in the process of vibration and load, the bolt is easy to loosen. Once a bolt loosens, the load on the adjacent bolt increases, which will cause the surrounding other bolts to also loosen, which is called "looseness propagation", which will aggravate the loosening problem, and finally make the steel structure joint contact interface slip, causing shear failure of the bolt.

[0004] Welded steel structure has the problems of thermal deformation and stress concentration, and the quality of the weld depends on the skill of the worker. Operation errors may lead to poor quality of the welded joint, affecting the firmness of the connection and the safety of the structure.

[0005] Riveting usually provides higher connection strength than bolt connection, and is especially suitable for structures that need to withstand high loads, but due to the large size of the riveting equipment, it is difficult to construct in some narrow spaces. SUMMARY

[0006] Therefore, the present application provides a fastening bolt rivet component, which is simple in structure and tightly connects the contact interface of the steel structure joint by a special hot riveting process to prevent interface slip and bolt loosening.

[0007] According to one aspect of the present application, a fastening bolt rivet component is provided for fixing a thin plate steel structure, comprising a bolt body and a fixing seat. The bolt body is a hollow structure with an upper and lower opening, has a certain length, and is suitable for being inserted into a through hole on the thin plate steel structure to be fixed. The fixing seat is arranged at one end of the bolt body and extends outward by a predetermined width relative to the circumference of the bolt body. The middle part of the fixing seat is also a hollow structure and is arranged in communication with the hollow structure of the bolt body. The bolt body includes a deformation zone. After the deformation zone is heated to enhance its plasticity and a riveting force is applied in the direction of the axis of the bolt body towards the fixing seat, the deformation zone can form an outward protruding structure relative to the main body of the bolt body. The deformation zone is suitable for expanding outward against the through hole on the thin plate steel to be connected, preventing relative slip between the connected thin plates.

[0008] In a possible implementation, the deformed area is provided with a first ring groove and a third ring groove, both of which are arranged on the outer circumferential side of the deformed area, and the first ring groove and the third ring groove are at a certain preset distance.

[0009] In a possible implementation, the deformed area is provided with a second ring groove, which is arranged on the inner circumferential side of the deformed area and is arranged between the first ring groove and the third ring groove.

[0010] In a possible implementation, the third ring groove is located at the connecting position of the deformed area and the thin steel plate.

[0011] In a possible implementation, the expansion area is provided with a groove, a protrusion and a reinforcing rib; the bottom of the fixing seat is further provided with a counterbore, a countersink or a counter sunk hole.

[0012] In a possible implementation, the inner diameter of the upper part of the fixing seat is the same as the inner diameter of the bottom of the bolt body, and the bolt body and the fixing seat are in an integrated structure.

[0013] In a possible implementation, the outer diameter of the bolt body is smaller than the outer diameter of the fixing seat, and the outer diameter of the bolt body is slightly smaller than the inner diameter of the through hole.

[0014] In a possible implementation, the diameter of the protrusion structure formed after the deformed area is heated is greater than the diameter of the through hole.

[0015] In a possible implementation, the bolt body further includes a force applying area and an expansion area; the force applying area, the deformed area and the expansion area are sequentially connected from top to bottom, the force applying area is internally provided with an internal thread; the inner wall thickness of the force applying area is greater than the inner wall thickness of the deformed area and the internal thickness of the expansion area.

[0016] In a possible implementation, the protrusion structure is one layer or multiple layers.

[0017] The utility model discloses beneficial effect: through setting bolt and fixed seat, bolt is the hollow structure of upper and lower opening, has certain length, fixed seat and bolt are integral type structure, and bolt has certain length, because, it is suitable for inserting to the through -hole on the thin plate steel structure of fixed, in actual steel sheet quantity can be more and steel sheet also has certain thickness, and bolt has certain length is in order to be able to pass through steel sheet, fixed seat sets up in one end of bolt, and the circumferential extension of relative bolt outward is preset width, and fixed seat has certain support bolt's effect, and also a part is the reverse force arm provided in the process of pull riveting, plays the effect of clamping steel sheet, and fixed seat has certain thickness, in order to be able to make steel sheet between more firm, in addition to the quantity of steel sheet not being one, sometimes the quantity of steel sheet is more, sets up fixed seat as having certain thickness, avoids the condition of fracture of fixed seat in the process of fixed steel plate and can not bear pressure, and the middle part of fixed seat is also hollow structure, and the hollow structure of bolt is communicated and sets up, and the deformation area is set up on bolt, and the plasticity of deformation area is enhanced by heating and adds pull riveting force, and the convex structure is formed in deformation area, and the convex structure formed is on the side of steel sheet, and fixed seat is on the other side of steel sheet, and the two cooperate with each other and fix thin steel plate, and the whole structure is simple through the above setting of the application, and still can better fixed connection thin steel plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The whole schematic diagram of the fastening bolt rivet member of the embodiment of the application is shown. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] The examples of the described embodiments are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model or simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," and "hinged" 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 utility model according to the specific circumstances.

[0024] like Figure 1 As shown, the fastening bolt and rivet component is suitable for fixing thin plate steel structures, including a bolt body 100 and a fixing seat 140. The bolt body 100 is a hollow structure with openings at the top and bottom, and has a certain length, suitable for insertion into the through hole on the thin plate steel structure 300 to be fixed. The fixing seat 140 is located at one end of the bolt body 100 and extends outward by a predetermined width relative to the circumference of the bolt body 100. The middle part of the fixing seat 140 is also a hollow structure, which is connected to the hollow structure of the bolt body 100. The bolt body 100 includes a deformation zone 110. After the deformation zone 110 is heated to enhance its plasticity and applied with riveting force, it forms an outward protruding structure relative to the main body of the bolt body 100, which cooperates with the fixing seat 140 to fix the thin steel plate 300. The deformation zone 110 is suitable for expanding outward to abut against the through hole on the thin steel plate 300 to be connected, preventing relative slippage between the connected thin steel plates 300.

[0025] Specifically, the fixed seat 140 is provided to support the bolt body 100. The bolt body 100 is arranged on the top of the fixed seat 140. In order to better realize the fixation, the fixed seat 140 and the bolt body 100 are integrated. In order to be able to place the bolt, the bolt body 100 and the fixed seat 140 are hollow structures. The bolt body 100 and the fixed seat 140 are arranged in communication. The fixed seat 140 provides a reverse force arm in the riveting process. The fixed seat 140 is arranged at one end of the bolt body 100 and extends outward by a predetermined width relative to the circumference of the bolt body 100. The fixed seat 140 has a certain thickness. Sometimes, the number of steel plates is relatively large or the thickness of the steel plates is relatively large. The fixed seat 140 has a certain thickness to avoid the situation that the fixed seat 140 cannot withstand the pressure and is broken in the process of fixing the steel plates. The bolt body 100 is a hollow cylindrical structure with a certain length. The bolt body 100 is arranged on the top of the fixed seat 140. The bolt body 100 has a certain length. In actuality, the number of steel plates can be relatively large and the thickness of the steel plates also has a certain thickness. The bolt body 100 has a certain length to be able to pass through the steel plates. The bolt body 100 includes a deformation zone 110. After the deformation zone 100 is heated to enhance the plasticity, a convex structure is formed. The inner side of the convex structure is tightly attached to the thin steel plate 300. The convex structure is matched with the fixed seat 140 to fix the thin steel plate 300. A load-bearing core bolt is arranged in the bolt body 100 and the fixed seat 140 to stabilize and strengthen the tensile and shear properties of the bolt body and further strengthen the fixation performance.

[0026] In a possible implementation, the bolt body 100 further includes a force applying zone 120 and an expansion zone 130. The force applying zone 120, the deformation zone 110 and the expansion zone 130 are sequentially connected from top to bottom.

[0027] Specifically, the bolt body is divided into the force applying zone 120, the folding deformation zone 110 and the expansion zone 130. The force applying zone 120 is used to apply pressure to the folding deformation zone 110 and the expansion zone 130. The folding deformation zone 110 is extruded and deformed after receiving the pressure. The expansion zone 130 starts to expand outward to resist the steel plate after receiving the pressure. In order to prevent the force applying zone 120 from being deformed when receiving the pressure, the inner diameter of the force applying zone 120 is smaller than that of the folding deformation zone 110. The outer wall thickness of the force applying zone 120 is relatively large. After the deformation zone 100 is heated to enhance the plasticity, the deformation zone 100 will not be deformed. The outer wall thickness of the folding deformation zone 110 and the expansion zone 130 is relatively small and is easy to be deformed. The outer diameter and the inner diameter need to be calculated according to the tensile strength and the shear strength and compared with the commonly used series of bolts. The performance is not less than that of the commonly used series of bolts used in actual working conditions. Finally, the performance is determined.

[0028] In a possible implementation, the expansion zone 130 is provided with a groove, a protrusion and a reinforcing rib. The bottom of the fixed seat 140 is further provided with a counterbore, a countersink or a counter sunk hole.

[0029] Specifically, grooves, protrusions and reinforcing ribs are arranged in the expansion zone 130 to improve the axial force and tension of the structure, and counterbores, countersunk holes or counter-sunk holes are arranged at the bottom of the fixing seat 140 to adapt to special installation environments.

[0030] In a possible implementation, the diameter of the force application zone 110 and the diameter of the expansion zone 130 are slightly smaller than the diameter of the through hole, and the expansion zone 130 is tightly connected to the inner circumferential side of the through hole after being subjected to pressure; the diameter of the protrusion structure is greater than the diameter of the through hole.

[0031] Specifically, as shown in Figure 1 the diameter of the force application zone 110, the diameter of the expansion zone 130 and the diameter of the deformation zone 110 are all slightly smaller than the diameter of the through hole, facilitating the penetration of the stud 100 through the through hole, and facilitating the partial heating of the expansion zone 130 and the deformation zone 110 to enhance the plasticity thereof to apply a riveting force, the deformation zone 110 forming a protrusion structure, the diameter of the protrusion structure being greater than the diameter of the through hole, so that the protrusion structure cannot pass through the through hole.

[0032] In a possible implementation, the load-bearing core stud includes a load-bearing core stud body and a load-bearing base 200, the load-bearing core stud body being arranged at the top of the load-bearing base 200 and being of an integrated structure, the shape of the load-bearing core stud body being the same as the hollow structure of the stud 100 and the hollow structure of the fixing seat 140; the load-bearing core stud body includes a threaded zone 210 and a load-bearing zone 220, the load-bearing zone 220 being arranged at the top of the load-bearing base 200, and the threaded zone 210 being arranged at the top of the load-bearing zone 220 and being provided with external threads; the top of the load-bearing zone 220 is provided with a chamfer 221, the chamfer 221 being arranged around the top of the load-bearing zone 220; the inner circumferential side of the force application zone 120 is provided with internal threads matched with the external threads, the tooth shape of the internal threads being the same as the tooth shape of the external threads, and the pitch and the number of threads of the internal threads being the same as the pitch and the number of threads of the external threads.

[0033] Specifically, as shown in Figure 1As shown, the overall structure of the load-bearing core pin is the same as the hollow structure of the pin body 100 and the hollow structure of the fixing seat 140, and the load-bearing core pin includes a load-bearing core pin body and a load-bearing base 200, the load-bearing core pin body is arranged at the top of the load-bearing base 200, the load-bearing core pin body is arranged inside the pin body 100, and the load-bearing base 200 is arranged inside the fixing seat 140. In order to better combine the load-bearing core pin with the pin body 100, the load-bearing core pin body includes a threaded area 210 and a load-bearing area 220, the threaded area 210 is arranged at the top of the load-bearing area 220, and external threads are arranged on the threaded area 210; the inner periphery of the force applying area 120 is provided with internal threads matched with the external threads. Because the internal threads and the external threads are used in cooperation with each other, it is required that the tooth shape of the internal threads is the same as the tooth shape of the external threads, and the pitch and the number of threads of the internal threads are the same as the pitch and the number of threads of the external threads. Because the convex structure is formed when bending occurs,

[0034] In a possible implementation, the first ring groove 111, the second ring groove 112 and the third ring groove 113 are arranged on the deformation area 110, which facilitates the formation of the convex structure; the first ring groove 111 is arranged at the top of the deformation area 110, the third ring groove 113 is arranged at the bottom of the deformation area 110, and the first ring groove 111 and the third ring groove 113 are arranged on the outer periphery of the deformation area 110; the second ring groove 112 is arranged on the inner periphery of the deformation area 110 and is located between the first ring groove 111 and the third ring groove 113; the third ring groove 113 is connected with the steel plate 300.

[0035] Specifically, as shown in the figure, Figure 1 In order to better form the convex structure, the first ring groove 111 is arranged at the top of the deformer 110, and the third ring groove 113 is arranged at the bottom of the deformation area 110. Because the convex structure needs to be fixed to the thin steel plate 300, the convex structure needs to be in contact with the thin steel plate 300. The third ring groove 113 is arranged at the bottom of the deformation area 110 and is in contact with the thin steel plate 300. The first ring groove 111 and the third ring groove 113 are arranged to thin the position of the first ring groove 111 and the outer wall of the third ring groove 113, which is easy to deform after the deformation area 110 is heated to enhance its plasticity and the rivet force is applied. In order to prevent the convex structure from being recessed into the interior of the pin body 100, the second ring groove 112 is arranged on the inner periphery of the deformation area 110 and is located between the first ring groove 111 and the third ring groove 113. At the same time, the load-bearing core pin is arranged in the pin body 100 and the fixing seat 140, which also avoids the recess of the convex structure into the interior of the pin body 100.

[0036] In a possible implementation, the bottom of the pin body 100 is provided with a processing groove 131, which facilitates the clamping of the edge of the through hole.

[0037] Specifically, as shown in the figure, Figure 1As shown, after the through hole is formed on the thin steel plate 300, a corner is formed. In order to enable the fixing base 140 to better fit the thin steel plate 300, a processing groove 131 is arranged at the bottom of the shank body 100, that is, the position where the shank body 100 is connected with the fixing base 140, so that the shank body 100 can better enter the through hole, and the fixing base 140 can better fit the thin steel plate 300, so as to better cooperate with the protruding structure to fix the thin steel plate 300.

[0038] In a possible implementation, the shape of the outer periphery of the fixing base 140 is hexagonal, square or cylindrical; and the shape of the outer periphery of the load-bearing base 200 matches the shape of the fixing base 140, that is, hexagonal, square or cylindrical.

[0039] Specifically, as shown, Figure 1 According to actual needs and customer requirements, the shape of the outer periphery of the fixing base 140 is hexagonal, square or cylindrical. Because the load-bearing core bolt is arranged in the shank body 100 and the fixing base 140, and because the shape of the outer periphery of the load-bearing base 200 matches the shape of the outer periphery of the fixing base 140, the load-bearing base 200 can be used in cooperation.

[0040] The fixing base 140 and the shank body 100 can be made of alloy steel, carbon steel, aluminum alloy, copper, titanium alloy, etc. according to actual needs.

[0041] When the application is used, the same position on the thin steel plate 300 that needs to be fixed together is punched to form a through hole. Then the shank body 100 is heated, the shank body 100 passes through the through hole, the fixing base 140 is arranged on one side of the thin steel plate 300, the deformation area 110 is heated to enhance its plasticity, and then the pull riveting force is applied to the force applying area 120. Through the heated shank body 100, the folded deformation area 110 starts to protrude outward, and finally a protruding structure is formed, one side of which is connected with the thin steel plate 300. After the pull riveting force is applied, the expansion area 130 also starts to expand outward, filling the gap of the through hole of the steel plate. Finally, the deformed protruding structure cooperates with the fixing base 140 to fix the thin steel plate 300.

[0042] The application sets the fixed seat 140 and the bolt body 100, so that the overall volume is small, the fixed seat 140 plays a certain supporting role, supports the bolt body 100, and the fixed seat 140 also provides a reverse force arm in the pull-riveting process, the first ring groove 111, the second ring groove 112 and the third ring groove 113 are arranged on the deformation area 110, so that the convex structure is formed, the bottom of the bolt body 100 is provided with the processing groove 131, so that the edge of the penetrating hole is clamped; through the above setting, the fixed steel plate to be fixed is fixed through the cooperation between the formed convex structure and the fixed seat 140, the effect of fastening and preventing loosening is achieved, and the technical problems of the riveting part structure being complex and the fixing effect being poor are solved.

[0043] The above is only a preferred specific implementation manner of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and concept of the application within the scope disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures, suitable for fixing thin-plate steel structures, characterized in that, Includes the plug body and the fixing seat; The bolt is a hollow structure with openings at the top and bottom, and has a certain length, making it suitable for insertion into the through hole of the thin steel plate structure to be fixed. The fixing seat is disposed at one end of the bolt body and extends outward by a predetermined width relative to the circumference of the bolt body. The middle part of the fixing seat is also a hollow structure and is connected to the hollow structure of the bolt body. The bolt body includes a deformation zone. After the deformation zone is heated to enhance its plasticity, it can form an outward protrusion structure relative to the bolt body body by applying a riveting force in the axial direction of the bolt body toward the fixing seat. The deformation zone is suitable for expanding outward to abut against the through hole on the thin steel plate to be connected, so as to prevent relative slippage between the thin steel plates to be connected.

2. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 1, characterized in that, The deformation zone is provided with a first annular groove and a third annular groove. The first annular groove and the third annular groove are both located on the outer periphery of the deformation zone, and there is a certain preset distance between the first annular groove and the third annular groove.

3. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 2, characterized in that, It also includes a second annular groove, which is disposed on the inner circumferential side of the deformation zone and is located between the first annular groove and the third annular groove.

4. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 3, characterized in that, The third annular groove is located at the connection between the deformation zone and the thin plate steel.

5. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 4, characterized in that, The expansion zone is equipped with grooves, protrusions, and reinforcing ribs; The bottom of the fixing base is also provided with countersunk holes, countersunk holes, or countersunk flat holes.

6. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 5, characterized in that, The inner diameter of the upper part of the fixing seat is the same as the inner diameter of the bottom of the bolt body, and the bolt body and the fixing seat are an integral structure.

7. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 6, characterized in that, The outer diameter of the bolt is smaller than the outer diameter of the fixing seat, and the outer diameter of the bolt is slightly smaller than the inner diameter of the through hole.

8. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 7, characterized in that, The diameter of the protrusion formed after heating the deformation zone is larger than the diameter of the through hole.

9. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to any one of claims 6-8, characterized in that, The thrombus also includes a force application zone and an expansion zone; The force application zone, deformation zone and expansion zone are connected sequentially from top to bottom, and the force application zone is provided with an internal thread. The inner wall thickness of the force application zone is greater than the inner wall thickness of the deformation zone and the inner thickness of the expansion zone.

10. The fastening bolt and rivet assembly for preventing loosening and interface slippage in thin-plate steel structures according to claim 9, characterized in that, The protruding structure can be one or more layers.

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