Steel structure folding beam self-contained limiting hinge connecting mechanism and steel structure folding beam self-contained limiting hinge connecting device
By introducing a combination design of self-limiting hinge rollers and limiting strips into the steel structure folded beam, a real hinge point is formed, which solves the problems of rotational constraint and stress concentration in traditional connection methods, improves stability and safety, simplifies the construction process, and reduces costs.
Patent Information
- Application Number
- CN202520263423.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Traditional bolt or welded connections in hinged joints of steel structure folded beams have the problem of constraining the rotation of both sides of the folded beam, which cannot fully realize the assumed effective rotation, resulting in bending moment transmission. In addition, the connection is complex and difficult to maintain, and loosening and friction may occur, affecting the safety and stability of the structure.
Design a steel structure folding beam with built-in limiting hinge connection mechanism. It adopts a combination of built-in limiting hinge roller and limiting strip. The arc surface directly contacts the end plate of the folding beam to form a real hinge point. It is fixed by locking pin, which simplifies the node structure and achieves uniform force distribution.
It improves the stability and safety of the connection, simplifies the node construction, reduces the risk of stress concentration, reduces construction complexity and maintenance difficulty, improves construction efficiency and quality, and reduces costs.
Smart Images
Figure CN223675540U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building steel structure construction, in particular to a steel structure folding beam self-limiting hinged connecting mechanism and device thereof. BACKGROUND
[0002] In industrial and civil building steel structure engineering, the hinged joint design of folding beam has always been one of the challenges faced by structure design. The traditional design usually adopts bolt or weld connection for simulating the hinged point to achieve the function of not transmitting bending moment. However, these traditional designs and construction methods objectively have a defect in practical application, mainly that the traditional design construction method actually exists the problem of restricting the rotation of the two sides of the folding beam, which cannot completely realize the assumed effective rotation, resulting in the existence of bending moment transmission, in addition, the complexity of traditional connection design, maintenance difficulty and the problem of possible loosening and friction of the joint under external load also need to be solved.
[0003] Bolt connection and weld connection are two common fixing methods for the hinged joint of folding beam, but these two connection methods limit the flexibility and adaptability of the joint to a certain extent, which may lead to complex stress of the joint and affect the safety and stability of the overall structure. The bolt connection realizes the fixation between components by tightening the bolt, and the existence of bolt hole will become the source of stress concentration, especially when subjected to dynamic load or temperature change, micro cracks may occur in the material around the bolt hole, which further affects the reliability of the connection. In addition, the unevenness of bolt pre-tightening force may cause uneven stress distribution between the contact surfaces, further aggravating the stress concentration phenomenon. The weld connection realizes permanent connection by melting the base material and filling the welding material, and welding defects such as pores, inclusions and incomplete penetration may occur during the welding process, which will also become the area of stress concentration and reduce the fatigue life of the structure. In addition, welding deformation and residual stress are also problems that need special attention in weld connection, which may cause local stress concentration and even lead to crack formation in some cases.
[0004] Therefore, it is necessary to design a steel structure folding beam self-limiting hinged connecting mechanism to meet its requirements for safety, stability, flexibility, adaptability and other aspects. CONTENT OF THE UTILITY MODEL
[0005] The main purpose of the utility model is to provide a steel structure folding beam self-limiting hinged connecting mechanism and device thereof, which can connect the two folding beams and constrain the rotation angle of the two folding beams at the same time.
[0006] To achieve the above purpose, the utility model provides a steel structure folding beam self-limiting hinged connecting mechanism, which comprises a self-limiting hinged roller, a first lug and a first limiting strip fixed on the free end of a first steel folding beam, and a second lug and a second limiting strip fixed on the free end of a second steel folding beam, wherein,
[0007] The first hanging ear, the self-limited hinge roller and the second hanging ear are hingedly connected, the outer side wall of the self-limited hinge roller comprises a circular arc surface and two inclined surfaces located on both sides of the circular arc surface, and the two ends of the first limiting strip and the second limiting strip are respectively in abutment with the circular arc surface of the self-limited hinge roller to limit the deformation angle of the hinge point.
[0008] Preferably, a limiting groove for accommodating the first limiting strip and the second limiting strip is formed in the outer side wall of the self-limited hinge roller, and the bottom wall of the limiting groove is of the same shape as the outer side wall of the self-limited hinge roller.
[0009] Preferably, the width of the limiting groove is greater than or equal to the width of the first limiting strip and the second limiting strip.
[0010] Preferably, two first hanging ears are arranged on the free end of the first steel folded beam, two second hanging ears are arranged on the free end of the second steel folded beam, and the self-limited hinge roller is located between the two first hanging ears.
[0011] Preferably, a sealing plate is fixed on the free end of the first steel folded beam and the second steel folded beam, and a first base and a second base are respectively fixed on the end of the two sealing plates close to each other, the first hanging ear is fixedly connected with the first base, and the second hanging ear is fixedly connected with the second base.
[0012] Preferably, the sealing plate is welded to the first steel folded beam and the second steel folded beam, and the first base and the second base are both welded to the sealing plate.
[0013] Preferably, the end face of the sealing plate protrudes outside the first base and the second base.
[0014] Preferably, a centering rod is further fixed to the middle part of the circular arc surface of the self-limited hinge roller.
[0015] Preferably, the first hanging ear, the self-limited hinge roller and the second hanging ear are connected by a pin shaft and a limiting piece.
[0016] The utility model also provides a steel structure folded beam self-limited hinge connecting device, including above-mentioned steel structure folded beam self-limited hinge connecting mechanism, still include with steel structure folded beam self-limited hinge connecting mechanism connection's first steel folded beam and second steel folded beam.
[0017] The steel structure folded beam self-limited hinge connecting mechanism has the following beneficial effects:
[0018] 1. By increasing the self-limiting hinge roller, the self-limiting hinge roller provides more uniform stress distribution, and through the direct contact of its circular arc surface with the end plate of the folded beam end, a concentric circular rotating system is realized, forming a real hinge point. This design not only simplifies the structure of the node, but also improves the stability and safety of the connection, solving the problems of local stress concentration, complex connection, maintenance difficulty and other problems of traditional connection methods;
[0019] 2. The design not only introduces self-limiting hinge rollers and locking pins to overcome the problems of traditional designs, but also exhibits significant advantages in safety, economy, practicality and maintenance, bringing multiple beneficial effects to modern engineering;
[0020] 3. The steel structure folded beam self-limiting hinge connection mechanism can be prefabricated and modularly assembled in the factory, thereby simplifying the construction process, reducing on-site operation, achieving reliable quality, reducing labor and time costs, and effectively shortening the construction period, reducing material loss, and greatly improving construction efficiency and quality. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a structural diagram of the steel structure folded beam self-limiting hinge connection mechanism of the utility model;
[0022] Figure 2 is a structural diagram of the self-limiting hinge roller in the steel structure folded beam self-limiting hinge connection mechanism of the utility model;
[0023] Figure 3 is a partial top view structural diagram of the steel structure folded beam self-limiting hinge connection mechanism of the utility model;
[0024] Figure 4 is a structural diagram of the locking pin in the steel structure folded beam self-limiting hinge connection mechanism of the utility model.
[0025] In the figure, 1 is a first steel folded beam; 101 is a sealing plate; 2 is a first base; 3 is a first limiting strip; 4 is a first hanging ear; 5 is a second base; 6 is a second limiting strip; 7 is a second hanging ear; 8 is a self-limiting hinge roller; 801 is a limiting groove; 9 is a locking pin; 901 is a limiting piece; 10 is a centering rod; 11 is a second steel folded beam.
[0026] The realization, functional characteristics and advantages of the utility model will be further described with reference to the accompanying drawings in combination with the embodiments. DETAILED DESCRIPTION
[0027] It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.
[0028] It should be noted that in the description of the utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0029] The utility model provides a steel structure folding beam with limiting hinged connecting mechanism.
[0030] Referring to Figure 1 and Figure 2 In the preferred embodiment, a steel structure folding beam with limiting hinged connecting mechanism includes a limiting hinged roller 8, a first lug 4 and a first limiting strip 3 fixed to the free end of the first steel folding beam 1, and a second lug 7 and a second limiting strip 6 fixed to the free end of the second steel folding beam 11, wherein
[0031] The first lug 4, the limiting hinged roller 8 and the second lug 7 are hingedly connected, the outer side wall of the limiting hinged roller 8 includes a circular arc surface and two inclined surfaces located on both sides of the circular arc surface, and the two ends of the first limiting strip 3 and the second limiting strip 6 respectively abut against the circular arc surface of the limiting hinged roller 8 to limit the deformation angle of the hinge point.
[0032] The hole positions of the fixing hole of the first lug 4, the fixing hole of the second lug 7 and the hole position of the limiting hinged roller 8 are centered.
[0033] The steel structure folding beam with limiting hinged connecting mechanism introduces the limiting hinged roller 8, and realizes uniform stress distribution at the node connection. This effectively reduces stress concentration and reduces the risk of fatigue cracks and fractures at the node. The shape and contact method of the limiting hinged roller 8 make the node more stable when subjected to external loads, reducing structural vibration and deformation. In traditional design, an imaginary non-real hinge point is often used, while the new design introduces the limiting hinged roller 8 to realize a real hinge point. This form of innovation makes the node more uniform when stressed, reducing stress concentration at the node, helping to prevent excessive deformation of the hinge point, maintaining controllable deformation within the design allowable variable angle of the connection, improving the stability and safety of the node, and providing greater reliability for engineering design.
[0034] Further, referring to Figure 1 and Figure 3The outer side wall of the self-limited hinge roller 8 is provided with a limiting groove 801 for accommodating the first limiting strip 3 and the second limiting strip 6, and the bottom wall of the limiting groove 801 has the same shape as the outer side wall of the self-limited hinge roller 8. By arranging the limiting groove 801, the first limiting strip 3 and the second limiting strip 6 are arranged in the limiting groove 801, so that the displacement of the first limiting strip 3 and the second limiting strip 6 relative to the self-limited hinge roller 8 is prevented, and the stability of the overall connecting structure is ensured.
[0035] In the embodiment, the width of the limiting groove 801 is greater than or equal to the width of the first limiting strip 3 and the second limiting strip 6.
[0036] Specifically, in the embodiment, two first hanging ears 4 are arranged on the free end of the first steel folded beam 1, two second hanging ears 7 are arranged on the free end of the second steel folded beam 11, and the self-limited hinge roller 8 is located between the two first hanging ears 4.
[0037] Further, the free end of the first steel folded beam 1 and the free end of the second steel folded beam 11 are fixed with sealing plates 101, and the first base 2 and the second base 5 are respectively fixed on the end of the two sealing plates 101 close to each other, the first hanging ear 4 is fixedly connected with the first base 2, and the second hanging ear 7 is fixedly connected with the second base 5. The sealing plate 101 is welded with the first steel folded beam 1 and the second steel folded beam 11, and the first base 2 and the second base 5 are welded with the sealing plate 101, so as to simplify the manufacturing process of the self-limited hinge connecting mechanism of the steel structure folded beam.
[0038] By arranging the first base 2 and the second base 5 on the bottom of the two sealing plates 101, the first hanging ear 4 and the first limiting strip 3, the second hanging ear 7 and the second limiting strip 6 are fixed on the corresponding steel folded beam.
[0039] Further, the end face of the sealing plate 101 protrudes outside the first base 2 and the second base 5.
[0040] The middle part of the arc surface of the self-limited hinge roller 8 is also fixed with a centering rod 10. The centering rod 10 functions to realize centering installation during installation, so that the components are symmetrically installed. For reference Figure 1 and Figure 4 In the embodiment, the first hanging ear 4, the self-limited hinge roller 8 and the second hanging ear 7 are connected by the pin shaft and the limiting piece 901.
[0041] The use of locking pin 9 provides a reliable means of securing the connection, avoiding the loosening and detachment problems that may occur with traditional connection methods. Locking pin 9 uses a threaded fastening method, ensuring a firm and complete connection and improving the overall durability of the node. The safety advantage of the entire design lies in its ability to effectively reduce the risk of accidents caused by structural problems at the node, providing strong assurance for the reliability of the project. The removability of locking pin 9 facilitates the inspection and maintenance of the node, allowing users to more easily perform regular inspections and maintenance.
[0042] Furthermore, the standardized components used in the self-limiting hinged connection mechanism of this steel structure folding beam, such as the first sealing plate 101, the second sealing plate 101, the self-limiting hinged roller 8, and the locking pin 9, effectively reduce manufacturing and procurement costs and improve the economic efficiency of the joint design. The simple joint construction facilitates production and installation, thereby reducing construction time and labor costs and enhancing project efficiency. Considering the widespread availability of the selected materials, the total project cost is further reduced. These economic advantages make this folding beam hinged joint more attractive in the field of steel structure engineering.
[0043] Compared with traditional bolted or welded connections, this invention significantly reduces the manufacturing and maintenance costs of nodes through the simplified structure of the first sealing plate 101, the second sealing plate 101, the self-contained limiting hinge roller 8, and the locking pin 9. The application of standardized components not only simplifies the manufacturing process but also enhances the versatility and adaptability of the design, and is expected to significantly reduce the overall project cost.
[0044] Specifically, in this embodiment, referring to Figure 2 By setting the lengths of the first steel folding beam 1 and the second steel folding beam 11, in the initial stage, a 150-degree angle is formed between the two contact points of the first limiting strip 3 and the second limiting strip 6 and the self-limiting hinge roller 8, as well as between the self-limiting hinge roller 8 and the first limiting strip 3 and the second limiting strip 6. A 160-degree angle is formed between the junction of the two inclined surfaces and the arc surface of the self-limiting hinge roller 8 and the self-limiting hinge roller 8. This allows for slight deformation of the angle between the two first steel folding beams 1 and the second steel folding beam 11, meaning the limiting angle range of the self-limiting hinge roller 8 is 10°. In other embodiments, the included angle between the two contact points and the self-limiting hinge roller 8 can also be adjusted to other angles, and the junction of the two inclined surfaces and the arc surface of the self-limiting hinge roller 8 can also be adjusted to other angles, thereby adjusting the limiting angle range of the self-limiting hinge roller 8.
[0045] The steel structure folding beam with built-in limiting hinge connection mechanism proposed in this embodiment has the following beneficial effects:
[0046] 1、By increasing the self-limiting hinge roller 8, the self-limiting hinge roller 8 provides more uniform stress distribution, and through the direct contact of its circular arc surface with the end plate at the end of the folded beam, a concentric circular rotating system is realized, forming a real hinge point. This design not only simplifies the construction of the node, but also improves the stability and safety of the connection, solving the problems of local stress concentration, complex connection, maintenance difficulty and other problems of traditional connection methods;
[0047] 2、The design not only introduces self-limiting hinge roller 8 and locking pin 9 to overcome the problems of traditional design, but also shows significant advantages in safety, economy, practicality and maintenance, bringing multiple beneficial effects to modern engineering;
[0048] 3、The steel structure folded beam self-limiting hinge connecting mechanism can be prefabricated and modularly assembled in the factory, thereby simplifying the construction process, reducing the on-site operation process to achieve the quality reliable goal, reducing the labor and time cost, and effectively shortening the construction period, reducing material loss, and greatly improving the construction efficiency and quality.
[0049] The utility model also provides a steel structure folded beam self-limiting hinge connecting device.
[0050] In the preferred embodiment, a steel structure folded beam self-limiting hinge connecting device includes the steel structure folded beam self-limiting hinge connecting mechanism described above, and also includes a first steel folded beam 1 and a second steel folded beam 11 connected to the steel structure folded beam self-limiting hinge connecting mechanism. The specific structure and beneficial effects of the steel structure folded beam self-limiting hinge connecting mechanism are referred to the above-mentioned embodiments, which will not be repeated here.
[0051] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation or direct or indirect application in other related technical fields based on the content of the utility model specification and drawings is also included in the patent protection range of the utility model.
Claims
1. A steel structure folding beam with a built-in limiting hinge connection mechanism, characterized in that, It includes a self-limiting hinged roller, a first lug and a first limiting strip fixed to the free end of the first steel folding beam, and a second lug and a second limiting strip fixed to the free end of the second steel folding beam, wherein, The first hook, the self-limiting hinge roller, and the second hook are hinged together. The outer wall of the self-limiting hinge roller includes an arc surface and two inclined surfaces located on both sides of the arc surface. The two ends of the first limiting strip and the second limiting strip respectively abut against the arc surface of the self-limiting hinge roller to limit the deformation angle of the hinge point.
2. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 1, characterized in that, The outer wall of the self-limiting hinged roller is provided with a limiting groove for accommodating the first limiting strip and the second limiting strip. The bottom wall shape of the limiting groove is the same as that of the outer wall of the self-limiting hinged roller.
3. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 2, characterized in that, The width of the limiting groove is greater than or equal to the width of the first limiting strip and the second limiting strip.
4. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 1, characterized in that, The first steel folding beam has two first lugs on its free end, and the second steel folding beam has two second lugs on its free end. The self-limiting hinge roller is located between the two first lugs.
5. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 1, characterized in that, Both the first and second steel folding beams have sealing plates fixed to their free ends. The ends of the two sealing plates that are close to each other are respectively fixed with a first base and a second base. The first hanging ear is fixedly connected to the first base, and the second hanging ear is fixedly connected to the second base.
6. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 5, characterized in that, The sealing plate is welded to the first steel folding beam and the second steel folding beam, and the first base and the second base are both welded to the sealing plate.
7. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 5, characterized in that, The end face of the sealing plate protrudes outside the first base and the second base.
8. The steel structure folding beam with built-in limiting hinge connection mechanism as described in claim 1, characterized in that, A centering rod is also fixed in the middle of the arc surface with a built-in limiting hinge roller.
9. The steel structure folding beam with built-in limiting hinge connection mechanism as described in any one of claims 1 to 8, characterized in that, The first hanging ear, the self-limiting hinged roller, and the second hanging ear are connected by a pin and a limiting component in a socket-type connection.
10. A steel structure folding beam with a built-in limiting hinge connection device, characterized in that, The system includes a steel structure folding beam with a built-in limiting hinge connection mechanism as described in any one of claims 1 to 9, and further includes a first steel folding beam and a second steel folding beam connected to the steel structure folding beam with a built-in limiting hinge connection mechanism.