A steel connecting device

Abstract

The utility model discloses a kind of sectional steel connecting devices, relate to building construction technical field.Sectional steel connecting device includes connecting sleeve, connecting seat, connecting reinforcing steel;Connecting sleeve is fixedly connected with the protruding column on first sectional steel, and the end portion of connecting sleeve deviating from first sectional steel is equipped with threaded hole;Connecting seat is attached and installed on second sectional steel, and is fixedly connected with the protruding column on second sectional steel, and connecting seat is equipped with clamping portion;One end of connecting reinforcing steel is equipped with threaded section, and the other end of connecting reinforcing steel is equipped with clamping section, threaded section is arranged in threaded hole by screw thread cooperation mode, and clamping section and clamping portion are clamped cooperation;The sectional steel connecting device provided by the utility model is assembled and connected by screw thread cooperation and clamping mode respectively with corresponding sectional steel by two ends of connecting reinforcing steel, can effectively improve the assembly efficiency of reinforcing steel and sectional steel connection, and also can guarantee the connecting strength of reinforcing steel and sectional steel.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a steel section connection device. Background Technology

[0002] With the rapid development of the construction industry, super high-rise and stadium buildings are increasingly appearing in people's field of vision. They generally use steel-concrete composite and reinforced concrete as building materials. In order to achieve structural height and load-bearing capacity, steel-concrete composite is often used in the vertical structure, while reinforced concrete is still used in the horizontal structure. Therefore, it is necessary to connect the horizontal steel bars with the vertical steel sections to realize the horizontal-vertical force transmission path.

[0003] For the connection between reinforcing bars and structural steel, the industry still mainly uses steel bracket welding. Sleeve connection is a newer technology that has emerged in recent years, offering advantages such as convenient construction and easy quality assurance. However, sleeve connection requires high precision in reinforcing bar cutting, which is difficult to achieve on-site. Currently, the industry also uses a combination of steel bracket welding and sleeve connection, allowing the two connection methods to complement each other's advantages and disadvantages, making construction convenient and quick, and ensuring connection quality. However, the end connecting the reinforcing bar to the steel bracket is still mainly fixed by welding. Since a single steel bracket requires welding a large number of reinforcing bars, the welding process is not only time-consuming, but also particularly difficult for the inner reinforcing bars. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the shortcomings in related technologies, and this utility model provides a steel section connection device.

[0005] This utility model provides the following technical solution: A steel section connecting device is used to connect a first steel section and a second steel section. The steel section connecting device includes a connecting sleeve, a connecting seat, and a connecting reinforcing bar.

[0006] The connecting sleeve is fixedly connected to the protruding post on the first steel section, and the end of the connecting sleeve opposite to the first steel section is provided with a threaded hole; the connecting seat is fitted onto the second steel section and fixedly connected to the protruding post on the second steel section, and the connecting seat is provided with a snap-fit ​​part; one end of the connecting reinforcing bar is provided with a threaded section, and the other end of the connecting reinforcing bar is provided with a snap-fit ​​part; the threaded section is inserted into the threaded hole by threaded engagement, and the snap-fit ​​part is snap-fitted into the threaded hole.

[0007] As a further improvement to the above technical solution, the connecting seat is equipped with a snap-fit ​​seat. The snap-fit ​​seat and the connecting seat have semi-circular grooves on their two opposite end faces. The two semi-circular grooves can be spliced ​​together to form a snap-fit ​​hole corresponding to the connecting steel bar. The snap-fit ​​part is disposed on the inner side wall of the snap-fit ​​hole. The end of the connecting steel bar away from the threaded section passes through the snap-fit ​​hole, and the snap-fit ​​section engages with the snap-fit ​​part.

[0008] As a further improvement to the above technical solution, an annular groove is provided on the inner sidewall of the snap-fit ​​hole, the groove is used to form the snap-fit ​​part, and a snap-fit ​​boss corresponding to the groove is provided on the end sidewall of the connecting steel bar away from the threaded section, the snap-fit ​​boss is used to form the snap-fit ​​section, and the snap-fit ​​boss is installed in the groove.

[0009] As a further improvement to the above technical solution, multiple slots are continuously provided in the snap-fit ​​hole along the axial direction of the connecting steel bar.

[0010] As a further improvement to the above technical solution, the width of the snap-fit ​​boss gradually decreases along the direction from the side of the connecting steel bar to the top of the snap-fit ​​boss; the shape of the snap-fit ​​groove corresponds to the snap-fit ​​boss, that is, the opening width of the snap-fit ​​groove is smaller than the bottom of the groove; the combined shape of multiple consecutive snap-fit ​​grooves is a corrugated tube.

[0011] As a further improvement to the above technical solution, a plurality of snap-fit ​​holes are provided parallel to each other between the snap-fit ​​base and the connecting base.

[0012] As a further improvement to the above technical solution, two snap-fit ​​seats are provided and are symmetrically arranged on both sides of the connecting seat.

[0013] As a further improvement to the above technical solution, the connecting seat is composed of an I-beam and a connecting plate. The I-shaped end face of the I-beam is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the protruding column on the second steel section. The I-beam is also provided with a connecting surface corresponding to the snap-fit ​​seat, and the semi-circular groove is formed on the connecting surface.

[0014] As a further improvement to the above technical solution, the connecting plate is provided with a through hole corresponding to the protruding post on the second steel section, and the end of the protruding post on the second steel section passing through the through hole is fitted with a nut by means of threaded engagement.

[0015] As a further improvement to the above technical solution, the end of the connecting sleeve away from the threaded hole is provided with a mating hole corresponding to the protruding post on the first steel section. The connecting sleeve is fitted onto the protruding post on the first steel section through the mating hole and is fixedly connected to the protruding post on the first steel section by welding.

[0016] Compared with related technologies, the beneficial effects of this utility model are: The steel section connecting device provided by this utility model demonstrates a unique and efficient connection method in scenarios such as construction engineering where connecting steel bars need to be stably assembled and fixedly connected to two steel sections.

[0017] During actual assembly, the connecting sleeve is first securely connected to the corresponding protruding post on the first steel section using reliable methods such as welding, ensuring the connection's strength and stability. Next, the connecting seat is fitted and assembled onto the designated position on the second steel section. Depending on the specific construction requirements and site conditions, an appropriate method is selected, such as using bolts for fastening or welding to firmly secure the connecting seat to the protruding post on the second steel section. This step also requires ensuring the quality of the connection to prevent loosening or other problems during subsequent use.

[0018] After completing the preliminary connection preparations for the two steel sections, the installation of the connecting reinforcing bars can begin. The threaded end of the connecting reinforcing bar, i.e., the threaded section, is slowly and accurately inserted into the threaded hole of the connecting sleeve using a threaded fit. During the insertion process, care must be taken to control the force and direction to ensure a perfect thread engagement and avoid stripping.

[0019] Subsequently, the other end of the connecting rebar, namely the snap-fit ​​section, is moved to the corresponding snap-fit ​​position on the connecting seat, allowing the snap-fit ​​section to smoothly enter the snap-fit ​​section. Utilizing the mating structure between the snap-fit ​​section and the connecting seat, the relative position of the connecting rebar and the connecting seat is strictly restricted and locked. In this way, the connecting rebar is securely connected between the two steel sections, completing the assembly connection of the connecting rebar with the two corresponding steel sections.

[0020] From the perspective of the entire assembly process, this steel section connection device has significant advantages. By using both threaded and snap-fit ​​methods at both ends of the connecting steel bars to assemble and connect them with the pre-installed connecting sleeves and seats on the corresponding steel sections, the construction difficulty is greatly reduced. Construction workers can quickly and accurately complete the connection work without complex operating skills or a large amount of time, thus effectively improving the assembly efficiency of the connection between the steel bars and the steel sections. At the same time, both threaded and snap-fit ​​connection methods have high connection strength, which can ensure the stability and reliability of the connection between the steel bars and the steel sections, providing a strong guarantee for the safety and stability of the entire building structure.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the steel connection device from one perspective in one embodiment of the present invention; Figure 2 This diagram shows a schematic view of the connecting seat in one embodiment of the present invention. Figure 3 This invention provides a schematic diagram of the connecting steel bars from one perspective in one embodiment of the present invention. Figure 4 This diagram shows a schematic view of the connecting sleeve in one embodiment of the present invention.

[0024] Explanation of key component symbols: 110 - First type of steel; 120 - Second type of steel; 130 - Protruding column; 200 - Connecting sleeve; 210 - Threaded hole; 220 - Mating hole; 300 - Connecting seat; 310 - Snap-fit ​​part; 311 - Snap-fit ​​groove; 320 - Snap-fit ​​seat; 321 - Snap-fit ​​hole; 330 - I-beam; 331 - Connecting surface; 340 - Connecting plate; 341 - Through hole; 400 - Connecting reinforcing bar; 410 - Threaded section; 420 - Snap-fit ​​section; 421 - Snap-fit ​​boss. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "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 and 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.

[0027] 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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.

[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] Combination Figure 1 , Figure 3 , Figure 4 As shown, an embodiment of this utility model provides a steel section connecting device for connecting a first steel section 110 and a second steel section 120. The steel section connecting device includes a connecting sleeve 200, a connecting seat 300, and a connecting reinforcing bar 400.

[0031] The connecting sleeve 200 is fixedly connected to the protruding post 130 on the first steel section 110. The end of the connecting sleeve 200 facing away from the first steel section 110 is provided with a threaded hole 210. The connecting seat 300 is fitted onto the second steel section 120 and fixedly connected to the protruding post 130 on the second steel section 120. The connecting seat 300 is provided with a snap-fit ​​part 310. One end of the connecting reinforcing bar 400 is provided with a threaded section 410, and the other end of the connecting reinforcing bar 400 is provided with a snap-fit ​​part 420. The threaded section 410 passes through the threaded hole 210 by threaded engagement, and the snap-fit ​​part 420 engages with the snap-fit ​​part 310.

[0032] The steel section connecting device provided in this embodiment demonstrates a unique and efficient connection method in scenarios such as construction engineering where it is necessary to securely assemble and fix the connecting steel bar 400 to two steel sections.

[0033] During the actual assembly process, the connecting sleeve 200 is first fixedly connected to the corresponding protruding post 130 on the first steel section 110 using a reliable fixing method such as welding, ensuring the strength and stability of the connection. Next, the connecting seat 300 is fitted and assembled into the designated position on the second steel section 120. Depending on the specific construction requirements and site conditions, an appropriate method is selected, such as using bolts for fastening or welding, to firmly fix the connecting seat 300 to the protruding post 130 on the second steel section 120. This step also requires ensuring the quality of the connection to prevent loosening or other problems during subsequent use.

[0034] After completing the preliminary connection preparations for the two steel sections, the installation of the connecting rebar 400 begins. The threaded end of the connecting rebar 400, i.e., the threaded section 410, is slowly and accurately inserted into the threaded hole 210 of the connecting sleeve 200 through a threaded engagement. During the insertion process, care must be taken to control the force and direction to ensure a perfect thread fit and avoid stripping.

[0035] Subsequently, the other end of the connecting rebar 400, namely the snap-fit ​​section 420, is moved to the corresponding snap-fit ​​part 310 position on the connecting seat 300, allowing the snap-fit ​​section 420 to smoothly enter the snap-fit ​​part 310. Utilizing the mating structure between the snap-fit ​​part 310 and the snap-fit ​​section 420, the relative position of the connecting rebar 400 and the connecting seat 300 is strictly restricted and locked. In this way, the connecting rebar 400 is securely connected between the two steel sections, completing the assembly connection of the connecting rebar 400 and the two corresponding steel sections.

[0036] From the perspective of the entire assembly process, this steel section connection device has significant advantages. By using both threaded and snap-fit ​​methods at both ends of the connecting steel bar 400 to assemble and connect it with the pre-installed connecting sleeve 200 and connecting seat 300 on the corresponding steel section, the construction difficulty is greatly reduced. Construction personnel can quickly and accurately complete the connection work without complex operating skills or a lot of time, thus effectively improving the assembly efficiency of the connection between the steel bar and the steel section. At the same time, both threaded and snap-fit ​​connection methods have high connection strength, which can ensure the stability and reliability of the connection between the steel bar and the steel section, providing a strong guarantee for the safety and stability of the entire building structure.

[0037] like Figure 2As shown, in some specific embodiments, the connecting seat 300 is equipped with a snap-fit ​​seat 320. The snap-fit ​​seat 320 and the connecting seat 300 have semi-circular grooves on their two opposite end faces. The two semi-circular grooves are joined to form a snap-fit ​​hole 321 corresponding to the connecting steel bar 400. The snap-fit ​​seat 320 and the connecting seat 300 are fixedly connected by bolts or other connecting components. The snap-fit ​​part 310 is disposed on the inner sidewall of the snap-fit ​​hole 321, and the connecting steel bar 400 is positioned away from the snap-fit ​​part 310. The end of the threaded section 410 passes through the snap-fit ​​hole 321, and the snap-fit ​​section 420 engages with the snap-fit ​​part 310. Specifically, the end of the connecting steel bar 400 away from the threaded section 410 needs to pass through the snap-fit ​​hole 321. During the insertion process, the snap-fit ​​section 420 on the connecting steel bar 400 will contact each other with the snap-fit ​​part 310 on the inner side wall of the snap-fit ​​hole 321 and engage, thereby firmly fixing the connecting steel bar 400 in the snap-fit ​​hole 321.

[0038] In the actual assembly process, there are clear steps and requirements. Specifically, after the threaded section 410 of the connecting steel bar 400 is assembled and connected to the connecting sleeve 200, due to the limitations of the threaded fit, the snap-fit ​​section 420 of the connecting steel bar 400 can only be moved and adjusted within a small range, and its movement space is constrained to a certain extent. In this case, if the connecting steel bar 400 is directly inserted into the snap-fit ​​hole 321 formed by the already fixed snap-fit ​​seat 320 and the connecting seat 300, it will be difficult to operate. Therefore, in order to improve the efficiency and convenience of assembly, the snap-fit ​​seat 320 and the connecting seat 300 can be separated in advance. The separated snap-fit ​​seat 320 and the connecting seat 300 provide sufficient space for the placement of the connecting steel bar 400. At this time, the connecting steel bar 400 can be moved to the two semi-circular grooves on the snap-fit ​​seat 320 and the connecting seat 300, so that the snap-fit ​​section 420 of the connecting steel bar 400 is aligned with the position of the semi-circular groove. Finally, the snap-fit ​​seat 320 and the connecting seat 300 are assembled and connected. As the two semi-circular grooves gradually close to form a complete snap-fit ​​hole 321, the snap-fit ​​section 420 of the connecting rebar 400 will naturally snap into place with the snap-fit ​​part 310. This operation method is not only simple and easy to understand, but also enables quick and accurate locking of the connecting rebar 400 and the connecting seat 300, greatly improving construction efficiency and connection stability, and providing a strong guarantee for the reliable use of the entire steel connection device.

[0039] In some specific embodiments, an annular groove 311 is formed on the inner sidewall of the snap-fit ​​hole 321. The groove 311 forms the snap-fit ​​portion 310. A snap-fit ​​boss 421 corresponding to the groove 311 is provided on the end sidewall of the connecting steel bar 400 opposite to the threaded section 410. The snap-fit ​​boss 421 forms the snap-fit ​​section 420. The snap-fit ​​boss 421 is installed in the groove 311, thereby restricting the axial movement of the connecting steel bar 400 relative to the connecting seat 300. During assembly, the snap-fit ​​boss 421 is installed in the groove 311. This fitting method effectively restricts the axial movement of the connecting steel bar 400 relative to the connecting seat 300. In other words, under normal use, the connecting steel bar 400 cannot slide freely within the connecting seat 300 along its axial direction, thus ensuring the relative fixation of the position between the connecting steel bar 400 and the connecting seat 300.

[0040] Furthermore, the connecting steel bar 400 and the connecting sleeve 200 are connected by a threaded connection. This threaded connection method has a certain degree of flexibility and adjustability, but some problems may arise during construction. For example, when subjected to external forces or affected by factors such as prolonged vibration, if the connecting steel bar 400 has a tendency to loosen relative to the connecting sleeve 200, according to the principle of threaded connection, the connecting steel bar 400 needs to expand and contract relative to the connecting sleeve 200. That is to say, if the connecting steel bar 400 rotates relative to the connecting sleeve 200, under the action of the thread, the connecting steel bar 400 will tend to move along the axial direction.

[0041] However, the mating structure of the snap-fit ​​boss 421 and the slot 311 designed in this embodiment plays a crucial role. Since the snap-fit ​​boss 421 is confined within the slot 311, when the connecting rebar 400 tends to move along its axial direction, the sidewall of the slot 311 obstructs the snap-fit ​​boss 421, thus simultaneously restricting this axial movement of the connecting rebar 400. In this way, even if the connecting rebar 400 has a tendency to loosen relative to the connecting sleeve 200, the mating of the snap-fit ​​boss 421 and the slot 311 restricts its axial movement, thereby preventing loosening between the connecting rebar 400 and the connecting sleeve 200. This dual-restraint mechanism ensures the reliability of the connection between the connecting rebar 400 and the two corresponding steel sections, greatly improving the stability and safety of the entire steel section connection device in complex construction environments.

[0042] In some specific embodiments, multiple slots 311 are continuously provided within the snap-fit ​​hole 321 along the axial direction of the connecting rebar 400. In actual construction scenarios, the processing accuracy of the connecting rebar 400 is often affected by various factors, such as the accuracy of processing equipment, fluctuations in the quality of raw materials, and differences in processing technology. This may lead to certain processing accuracy issues with the length of the connecting rebar 400. If, according to the traditional design, only one slot 311 is provided within the snap-fit ​​hole 321, when the length of the connecting rebar 400 deviates, the snap-fit ​​boss 421 may not accurately fall into the slot 311, thus preventing assembly from being completed. In this case, frequent rework of the connecting rebar 400 is required, readjusting its length or performing other processing operations. This not only consumes a lot of time and labor costs but also seriously affects the construction progress.

[0043] This embodiment solves the problem by continuously providing multiple slots 311 along the axis of the connecting rebar 400 within the snap-fit ​​hole 321. When there are machining accuracy issues with the length of the connecting rebar 400, operators do not need to perform complex rework operations on the connecting rebar 400. They only need to move the connecting rebar 400 axially within the snap-fit ​​hole 321 appropriately, so that the snap-fit ​​boss 421 can fall into the nearest slot 311 within the snap-fit ​​hole 321 and achieve a tight fit with the slot 311, thus successfully completing the assembly.

[0044] This design significantly reduces the precision requirements for the machining of the connecting steel bars 400. Even if there is a certain error in the length of the connecting steel bars 400, as long as the error range is within the axial distance covered by the multiple slots 311, assembly can be achieved by selecting the appropriate slot 311, avoiding frequent rework caused by length accuracy issues. This not only reduces unnecessary trouble and costs during construction but also further improves construction efficiency, ensuring the project can proceed smoothly according to the predetermined plan.

[0045] In some specific embodiments, the width of the snap-fit ​​boss 421 gradually decreases from the side of the connecting steel bar 400 to the top of the snap-fit ​​boss 421. From a mechanical point of view, this gradually decreasing width structure allows the snap-fit ​​boss 421 to enter the slot 311 more smoothly when it mates with the slot 311, and the force distribution is more uniform and reasonable when subjected to external force, enhancing the stability of the snap-fit. From a construction operation perspective, this structure makes it easier for operators to accurately guide the snap-fit ​​boss 421 to the position of the slot 311, reducing the difficulty of operation. The shape of the slot 311 corresponds to the snap-fit ​​boss 421, that is, the opening width of the slot 311 is smaller than the bottom of the slot 311. When the snap-fit ​​boss 421 attempts to enter from the opening of the slot 311, the narrow opening will have a certain guiding and constraining effect on the snap-fit ​​boss 421, allowing it to enter the slot 311 more accurately along the predetermined path. The wider bottom of the groove provides sufficient space for the snap-fit ​​boss 421, ensuring that the snap-fit ​​boss 421 can be securely embedded in the slot 311 and achieve a reliable snap-fit ​​engagement.

[0046] More ingeniously, multiple consecutive slots 311 are combined to form a corrugated tube shape. This unique design offers numerous advantages. First, it significantly reduces the difficulty of aligning the snap-fit ​​boss 421 with the slot 311. During actual assembly, operators do not need to spend considerable time and effort precisely aligning the snap-fit ​​boss 421 and the slot 311. They only need to place the connecting steel bar 400 approximately close to the assembly area of ​​the snap-fit ​​seat 320 and the connecting seat 300. Due to the guiding effect of the corrugated tube-shaped slot 311, the snap-fit ​​boss 421 can more easily find and enter the appropriate slot 311, thus significantly improving assembly efficiency.

[0047] Furthermore, this design plays a crucial role during the mating assembly of the snap-fit ​​seat 320 and the connecting seat 300. As the two semicircular grooves gradually close to form a complete snap-fit ​​hole 321, the snap-fit ​​boss 421, guided by the corrugated tubular snap-fit ​​groove 311, gradually and smoothly falls into the corresponding snap-fit ​​groove 311. This gradual mating process avoids problems such as collisions or misalignments between the snap-fit ​​boss 421 and the snap-fit ​​groove 311 that may occur due to rapid mating, ensuring a reliable fit between the snap-fit ​​boss 421 and the snap-fit ​​groove 311.

[0048] In some specific embodiments, a plurality of snap-fit ​​holes 321 are provided parallel between the snap-fit ​​seat 320 and the connecting seat 300, so that multiple connecting steel bars 400 can be assembled and connected to the same connecting seat 300 at the same time, thereby improving the efficiency of building construction.

[0049] In some specific embodiments, there are two snap-fit ​​seats 320, which are symmetrically arranged on both sides of the connecting seat 300. By setting multiple sets of snap-fit ​​seats 320 on the same connecting seat 300, the assembly and connection efficiency between the connecting steel bar 400 and the corresponding steel section can be further improved.

[0050] In some specific embodiments, the connecting seat 300 is composed of an I-beam 330 and a connecting plate 340. The I-shaped end face of the I-beam 330 is fixedly connected to the connecting plate 340, and the connecting plate 340 is fixedly connected to the protruding column 130 on the second steel section 120. The I-beam 330 is also provided with a connecting surface 331 corresponding to the snap-fit ​​seat 320. The semi-circular groove is formed on the connecting surface 331. The connecting seat 300 is composed of the above structure, which facilitates the overall strength of the connecting seat 300 and improves the connection reliability between the connecting seat 300 and the connecting steel bar 400 and the corresponding steel section.

[0051] In some specific embodiments, the connecting plate 340 has a through hole 341 corresponding to the protruding post 130 on the second steel 120. The end of the protruding post 130 on the second steel 120 passing through the through hole 341 is fitted with a nut by means of thread engagement. Compared with the traditional method of welding the connecting plate 340 and the protruding post 130 together, this method is easier to fix and connect the connecting plate 340 and the protruding post 130 together, and improves the efficiency of fixing and connecting the connecting plate 340 and the protruding post 130 together.

[0052] In some specific embodiments, the end of the connecting sleeve 200 opposite to the threaded hole 210 has a mating hole 220 corresponding to the protruding post 130 on the first steel 110. The connecting sleeve 200 is fitted onto the protruding post 130 on the first steel 110 through the mating hole 220 and is fixedly connected to the protruding post 130 on the first steel 110 by welding. By setting the mating hole 220 to mate with the corresponding protruding post 130, this design also has an important function: to limit and guide the opening orientation of the threaded hole 210 on the connecting sleeve 200. In building construction, the connecting steel bar 400 needs to pass through the threaded hole 210 of the connecting sleeve 200, and the opening orientation of the threaded hole 210 directly affects the passing direction and position of the connecting steel bar 400. If the opening orientation of the threaded hole 210 is deviated, then when the connecting steel bar 400 is inserted, there may be a large positional deviation between the snap-fit ​​section 420 of the connecting steel bar 400 and the snap-fit ​​part 310 on the connecting seat 300, thereby increasing the difficulty of assembly and construction, and may even affect the connection quality and stability of the entire steel connection device.

[0053] During assembly, the mating hole 220 guides the connecting sleeve 200 to be correctly positioned on the protruding post 130, ensuring that the opening orientation of the threaded hole 210 remains within a predetermined range. This way, when the threaded section 410 of the connecting rebar 400 is inserted into the threaded hole 210, the positional deviation between the locking section 420 of the connecting rebar 400 and the locking portion 310 on the connecting seat 300 can be controlled within a manageable range. Operators do not need to spend a significant amount of time and effort adjusting the position of the connecting rebar 400; they can simply follow the normal assembly procedure to successfully assemble the connecting rebar 400 with the connecting sleeve 200 and the connecting seat 300, greatly reducing the difficulty of assembly and improving construction efficiency and quality.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A steel section connecting device for connecting a first steel section (110) and a second steel section (120), characterized in that, include: A connecting sleeve (200) is fixedly connected to a protruding post (130) on a first steel section (110), and the end of the connecting sleeve (200) facing away from the first steel section (110) is provided with a threaded hole (210). The connecting seat (300) is fitted onto the second steel (120) and fixedly connected to the protruding column (130) on the second steel (120). The connecting seat (300) is provided with a snap-fit ​​part (310). A connecting steel bar (400) is provided with a threaded section (410) at one end and a snap-fit ​​section (420) at the other end. The threaded section (410) is inserted into the threaded hole (210) by means of threaded engagement, and the snap-fit ​​section (420) is engaged with the snap-fit ​​part (310).

2. The steel section connecting device according to claim 1, characterized in that, The connecting seat (300) is equipped with a snap-fit ​​seat (320). The snap-fit ​​seat (320) and the connecting seat (300) have semi-circular grooves on their two opposite end faces. The two semi-circular grooves can be spliced ​​to form a snap-fit ​​hole (321) corresponding to the connecting steel bar (400). The snap-fit ​​part (310) is provided on the inner side wall of the snap-fit ​​hole (321). The end of the connecting steel bar (400) away from the threaded section (410) passes through the snap-fit ​​hole (321) and the snap-fit ​​section (420) engages with the snap-fit ​​part (310).

3. The steel section connecting device according to claim 2, characterized in that, An annular groove (311) is provided on the inner side wall of the snap-fit ​​hole (321). The groove (311) is used to form the snap-fit ​​part (310). The end side wall of the connecting steel bar (400) away from the threaded section (410) is provided with a snap-fit ​​boss (421) corresponding to the groove (311). The snap-fit ​​boss (421) is used to form the snap-fit ​​section (420). The snap-fit ​​boss (421) is installed in the groove (311).

4. The steel section connecting device according to claim 3, characterized in that, Multiple slots (311) are continuously provided in the snap-fit ​​hole (321) along the axial direction of the connecting steel bar (400).

5. The steel section connecting device according to claim 3, characterized in that, The width of the snap-fit ​​boss (421) gradually decreases along the direction from the side of the connecting steel bar (400) to the top of the snap-fit ​​boss (421).

6. The steel section connecting device according to claim 2, characterized in that, A plurality of snap-fit ​​holes (321) are provided parallel to each other between the snap-fit ​​base (320) and the connecting base (300).

7. The steel section connecting device according to claim 2, characterized in that, Two card holders (320) are provided and are symmetrically arranged on both sides of the connector (300).

8. The steel section connecting device according to claim 2, characterized in that, The connecting seat (300) is composed of an I-beam (330) and a connecting plate (340). The I-shaped end face of the I-beam (330) is fixedly connected to the connecting plate (340). The connecting plate (340) is fixedly connected to the protruding column (130) on the second steel (120). The I-beam (330) is also provided with a connecting surface (331) corresponding to the snap-fit ​​seat (320). The semi-circular groove is opened on the connecting surface (331).

9. The steel section connecting device according to claim 8, characterized in that, The connecting plate (340) has a through hole (341) corresponding to the protruding post (130) on the second steel (120). The end of the protruding post (130) on the second steel (120) passing through the through hole (341) is fitted with a nut by means of thread engagement.

10. The steel section connecting device according to any one of claims 1 to 9, characterized in that, The end of the connecting sleeve (200) opposite to the threaded hole (210) is provided with a mating hole (220) corresponding to the protruding post (130) on the first steel (110). The connecting sleeve (200) is sleeved on the protruding post (130) on the first steel (110) through the mating hole (220) and is fixedly connected to the protruding post (130) on the first steel (110) by welding.

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