A modular horizontal channel steel beam connection device

Abstract

The present invention discloses a modular horizontal channel steel beam connection device, which belongs to the technical field of prefabricated building structures and includes an I-shaped reinforcement piece, wherein the inner side of the top of the I-shaped reinforcement piece is provided with a reinforcement module installation groove that is symmetrically arranged on the left and right sides, and a vertical force reinforcement module is installed in the reinforcement module installation groove. The four corners of the top of the I-shaped reinforcement piece are provided with threaded holes corresponding to the vertical force reinforcement module, and the top of the vertical force reinforcement module is fixed in the reinforcement module installation groove by fixing screws; the upper surfaces on the left and right sides of the bottom of the I-shaped reinforcement piece are both provided with striped friction surfaces. The present invention adopts the above-mentioned modular horizontal channel steel beam connection device to solve the problems of low construction efficiency, node stress concentration and poor modular adaptability caused by insufficient standardization of the connection interface and discontinuous force transmission path in the existing horizontal modular beam connection device, and can improve the structural integrity and seismic performance.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated building structures, and in particular to a modular horizontal channel steel beam connection device. Background Art

[0002] Modular integrated building systems are an emerging construction method. This approach involves transporting factory-produced modular units to the construction site, where they are assembled to form a complete building. This construction method offers advantages such as environmental friendliness, a short construction cycle, and high efficiency. Due to the lightweight, high-strength, and flexible connection characteristics of steel structures, modular steel structures have become the predominant structural form of modular buildings in recent years.

[0003] The horizontal modular beam connection devices of existing modular steel structure buildings mostly rely on on-site welding or bolt fixing, which has problems such as low construction efficiency, stress concentration at nodes and poor modular adaptability. This is mainly due to the lack of standardization in the connection interface design and the discontinuous force transmission path, which makes it difficult for the structural integrity and seismic performance to meet the requirements of high-rise assembly. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular horizontal channel steel beam connection device, which aims to solve the problems of low construction efficiency, node stress concentration and poor modular adaptability caused by insufficient standardization of the connection interface and discontinuous force transmission path in the existing horizontal modular beam connection device, so as to improve the structural integrity and seismic performance.

[0005] To achieve the above-mentioned objectives, the present invention provides a modular horizontal channel steel beam connection device, including an I-shaped reinforcement piece, wherein the inner side of the top of the I-shaped reinforcement piece is provided with a reinforcement module installation groove which is symmetrically arranged on the left and right sides, and a vertical force reinforcement module is installed in the reinforcement module installation groove, and threaded holes corresponding to the vertical force reinforcement module are provided at the four corners of the top of the I-shaped reinforcement piece, and the top of the vertical force reinforcement module is fixed in the reinforcement module installation groove by fixing screws; the upper surfaces on the left and right sides of the bottom of the I-shaped reinforcement piece are both set as striped friction surfaces.

[0006] Preferably, the vertical force reinforcement module includes a large gear arranged at the center position of the reinforcement module installation slot, a plug-in slot is opened in the middle of the large gear and is coaxially fixedly connected to the knob cover located on the upper surface of the I-shaped reinforcement member through a first plug-in column, and the left and right sides of the large gear are symmetrically connected with vertical force application modules.

[0007] Preferably, the vertical force applying module includes a locking cover fixed in the reinforcement module mounting groove by the fixing screw, the middle portion of the lower surface of the locking cover is set as an inner groove of the locking cover; the middle portion of the locking cover is provided with a through pinion connecting groove, a first pinion gear meshing with the large gear is provided above the pinion connecting groove, and a second pinion gear located in the inner groove of the locking cover and coaxially connected to the first pinion gear is provided below the pinion connecting groove;

[0008] A rotating bolt groove with built-in threads is provided on the locking cover located on one side of the pinion connecting groove, and a rotating bolt is fixed with the inner thread of the rotating bolt groove. The upper end of the rotating bolt is configured to be disc-shaped and fixed to the locking cover, and a gear bolt pressure assembly is correspondingly provided below the rotating bolt, and the bottom of the gear bolt pressure assembly is installed on an arc-shaped limit plate that matches the locking cover.

[0009] Preferably, a stiffening rib plate assembly located in a groove in the upper locking cover is welded to the upper surface of the arc-shaped limiting plate, and the bottom of the gear bolt pressure assembly is fixed to the middle of the stiffening rib plate assembly.

[0010] Preferably, the stiffening rib plate assembly includes a rectangular plate located in the middle, the upper and lower surfaces of the rectangular plate are roughened respectively, and threaded holes are opened at the four corners; ribs extend from both sides of the rectangular plate, and the ribs form several rectangular frames with hollow centers and equal spacing.

[0011] Preferably, the gear bolt pressure assembly includes a cover plate mounted on the rectangular plate by fixing bolts, and the lower surface of the cover plate is roughened; a cylindrical cylinder is integrally connected to the middle of the cover plate, and a threaded gear is provided in the cylindrical cylinder, which rotates in counterposition with the rotating bolt, and the outer side of the threaded gear is meshed with the second pinion, and a disc with the same inner diameter as the cylindrical cylinder is welded to the bottom of the threaded gear; a displacement distance is set between the disc and the bottom of the cylindrical cylinder.

[0012] Preferably, the middle parts of the first pinion and the second pinion are both provided with the plug-in slot and are connected through a second plug-in column.

[0013] Preferably, spring grooves are provided on the inner sides of both ends of the locking cover and the arc-shaped limiting plate, and springs are provided in the spring grooves.

[0014] Preferably, the lower surface of the arc-shaped limiting plate is a downwardly protruding arc-shaped structure and the surface is roughened.

[0015] Preferably, the prefabricated channel steel beam is embedded in the grooves on both sides of the I-shaped reinforcement, the upper surface of the prefabricated channel steel beam is provided with an arc groove matching the arc-shaped limiting plate, and the surface of the arc groove is roughened; the lower surface of the prefabricated channel steel beam is provided with a striped treatment matching the striped friction surface.

[0016] Therefore, the present invention adopts the above-mentioned modular horizontal channel steel beam connection device, which can solve the problems of low construction efficiency, node stress concentration and poor modular adaptability caused by insufficient standardization of the connection interface and discontinuous force transmission path of the existing horizontal modular beam connection device, and can improve the structural integrity and seismic performance.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an I-shaped reinforcement member of an embodiment of a modular horizontal channel steel beam connection device of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of an embodiment of a modular horizontal channel steel beam connection device of the present invention;

[0020] Figure 3 1 is a schematic structural diagram of a vertical force reinforcement module of an embodiment of a modular horizontal channel steel beam connection device of the present invention;

[0021] Figure 4 This is a schematic diagram of the installation position of the gear bolt pressure assembly of an embodiment of a modular horizontal channel steel beam connection device of the present invention;

[0022] Figure 5 This is a structural schematic diagram of a stiffening rib plate assembly of an embodiment of a modular horizontal channel steel beam connection device of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a gear bolt pressure assembly of an embodiment of a modular horizontal channel steel beam connection device of the present invention.

[0024] Reference numerals

[0025] 1. I-shaped reinforcement; 21. Large gear; 22. First plug-in column; 23. Plug-in slot; 24. Second plug-in column; 25. Knob cover; 26. First pinion; 27. Locking cover; 28. Pinion connecting slot; 29. Inner groove of locking cover; 210. Second pinion; 211. Rotating bolt; 212. Gear bolt pressure assembly; 2121. Cover plate; 2122. Cylindrical tube; 2123. Threaded gear; 2124. Disc; 213. Arc-shaped limit plate; 214. Stiffening rib plate assembly; 2141. Rectangular plate; 2142. Rib; 215. Spring slot; 216. Spring; 3. Prefabricated channel steel beam; 31. Arc groove. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0028] Example 1

[0029] The present invention provides a modular horizontal channel steel beam connection device, including an I-shaped reinforcement member 1. The inner side of the top of the I-shaped reinforcement member 1 is provided with a reinforcement module installation groove that is symmetrically arranged on the left and right. A vertical force reinforcement module is installed in the reinforcement module installation groove to apply downward pressure to the horizontal module beam, thereby better fixing the horizontal module beams on both sides.

[0030] The top four corners of the I-shaped reinforcement member 1 are provided with threaded holes corresponding to the vertical force reinforcement module and the top of the vertical force reinforcement module is fixed in the reinforcement module installation slot by fixing screws. Figure 1 As shown, the upper surfaces of the left and right sides of the bottom of the I-shaped reinforcement 1 are set as striped friction surfaces to increase the mechanical bite force, thereby improving the stability of the connection, strengthening the fixing effect on the horizontal module beam, and improving the seismic performance. The overall fixing method is as follows Figure 2 shown.

[0031] like Figure 3 As shown, the vertical force reinforcement module includes a large gear 21 arranged at the center position of the reinforcement module installation slot. A plug-in slot 23 is opened in the middle of the large gear 21 and is coaxially fixedly connected to the knob cover 25 located on the upper surface of the I-shaped reinforcement member 1 through a first plug-in column 22. That is, rotating the knob cover 25 can make the large gear 21 move coaxially at the same time, which is convenient for controlling the internal structure and is beneficial to improving the assembly efficiency during the installation process.

[0032] The vertical force application modules are symmetrically connected to the left and right sides of the large gear 21. The vertical force application module includes a locking cover 27 secured within the reinforcement module mounting slot via screws, securing and limiting the entire vertical force application module. The center of the lower surface of the locking cover 27 is provided with an inner groove 29. In this embodiment, the thickness of the inner groove 29 is one-third of the overall thickness, providing sufficient installation space for the internal structure. This can be adjusted based on actual application needs.

[0033] A pinion gear connecting slot 28 is provided in the middle of the locking cover 27. A first pinion gear 26 meshing with the large gear 21 is provided above the pinion gear connecting slot 28. A second pinion gear 210 is provided below the pinion gear connecting slot 28, located within a recess 29 within the locking cover and coaxially connected to the first pinion gear 26. Both the first and second pinion gears 26, 210 have a plug-in slot 23 in their middle portions and are connected by a second plug-in post 24. Rotation of the large gear 21 drives the first and second pinion gears 26, 210 to simultaneously rotate coaxially in opposite directions.

[0034] A rotating bolt slot with built-in threads is defined on the locking cover 27, located on one side of the pinion connecting slot 28. A rotating bolt 211 is fixed to the inner threads of the rotating bolt slot. The upper end of the rotating bolt 211 is disc-shaped and fixed to the locking cover 27 to prevent the rotating bolt 211 from being easily separated from the locking cover 27. The shaft of the rotating bolt 211 is threaded, and a gear bolt pressure assembly 212 is correspondingly provided below the rotating bolt 211 to apply downward pressure.

[0035] like Figure 4 As shown, the bottom of the gear bolt pressure assembly 212 is mounted on a curved stopper plate 213 that matches the upper locking cover 27. When the gear bolt pressure assembly 212 applies downward pressure, it drives the curved stopper plate 213 downward, thereby compressing the horizontal module beam below. A stiffening rib plate assembly 214, located within the inner groove 29 of the upper locking cover, is welded to the upper surface of the curved stopper plate 213. The bottom of the gear bolt pressure assembly 212 is fixed to the middle of the stiffening rib plate assembly 214.

[0036] like Figure 5As shown, the stiffening rib plate assembly 214 includes a centrally located rectangular plate 2141. The upper and lower surfaces of rectangular plate 2141 are roughened to facilitate more secure welding of rectangular plate 2141 to arcuate stop plate 213 and to strengthen the connection between rectangular plate 2141 and gear bolt pressure assembly 212. Ribs 2142 extend from both sides of rectangular plate 2141. These ribs 2142 form a plurality of equally spaced rectangular frames with hollowed-out portions in the middle, which serve to enhance the stability of stiffening rib plate assembly 214.

[0037] The four corners of the rectangular plate 2141 are provided with threaded holes, such as Figure 6 As shown, the gear bolt pressure assembly 212 includes a cover plate 2121 mounted on a rectangular plate 2141 by fixing bolts. The lower surface of the cover plate 2121 is roughened to make the connection between the cover plate 2121 and the rectangular plate 2141 more secure. A cylindrical barrel 2122 is integrally connected to the middle of the cover plate 2121. A threaded gear 2123 is provided in the cylindrical barrel 2122 to rotate in counterposition with the rotating bolt 211. The outer side of the threaded gear 2123 is meshed with the second pinion 210. When the second pinion 210 rotates, the threaded gear 2123 can be rotated simultaneously in the cylindrical barrel 2122. A disc 2124 with the same inner diameter as the cylindrical barrel 2122 is welded to the bottom of the threaded gear 2123 to ensure that the threaded gear 2123 moves vertically up and down. A displacement distance is set between the disc 2124 and the bottom of the cylindrical barrel 2122 to achieve the effect of controlling the vertical force.

[0038] like Figure 3 As shown, spring slots 215 are provided on the inner sides of the locking cover 27 and the ends of the arc-shaped stop plate 213, respectively. Springs 216 are installed in the spring slots 215 to facilitate pre-alignment during installation and provide a spring force when controlling the vertical force, thereby better controlling the magnitude of the vertical force. The lower surface of the arc-shaped stop plate 213 is a downwardly protruding arc structure with a roughened surface, which facilitates clamping and securing the horizontal module beam.

[0039] The precast channel steel beam 3 is positioned at the outer end of the horizontal module beam and is embedded in the grooves on both sides of the I-shaped reinforcement 1. The upper surface of the precast channel steel beam 3 is provided with an arc-shaped groove 31 that matches the arc-shaped stop plate 213. The surface of the arc-shaped groove 31 is roughened to better secure the arc-shaped stop plate 213. The lower surface of the precast channel steel beam 3 is provided with a striped treatment that matches the striped friction surface, which helps prevent the precast channel steel beam 3 from separating from the I-shaped reinforcement 1 and improves seismic performance.

[0040] Therefore, the present invention adopts the above-mentioned modular horizontal channel steel beam connection device, which can solve the problems of low construction efficiency, node stress concentration and poor modular adaptability caused by insufficient standardization of the connection interface and discontinuous force transmission path of the existing horizontal modular beam connection device, and can improve the structural integrity and seismic performance.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A modular horizontal channel steel beam connection device, characterized in that: The invention comprises an I-shaped reinforcement member, wherein the inner side of the top of the I-shaped reinforcement member is provided with a reinforcement module installation groove which is symmetrically arranged on the left and right sides, and a vertical force reinforcement module is installed in the reinforcement module installation groove. The four corners of the top of the I-shaped reinforcement member are provided with threaded holes corresponding to the vertical force reinforcement modules, and the top of the vertical force reinforcement module is fixed in the reinforcement module installation groove by fixing screws; the upper surfaces on the left and right sides of the bottom of the I-shaped reinforcement member are both provided with striped friction surfaces; The vertical force reinforcement module includes a large gear arranged at the center of the reinforcement module installation slot, a plug-in slot is opened in the middle of the large gear and is coaxially fixedly connected to the knob cover located on the upper surface of the I-shaped reinforcement member through a first plug-in column, and vertical force applying modules are symmetrically connected to the left and right sides of the large gear respectively; The vertical force applying module includes a locking cover fixed in the reinforcement module mounting groove by the fixing screw, the middle portion of the lower surface of the locking cover is set as an inner groove of the locking cover; the middle portion of the locking cover is provided with a through pinion connecting groove, a first pinion gear meshing with the large gear is provided above the pinion connecting groove, and a second pinion gear located in the inner groove of the locking cover and coaxially connected to the first pinion gear is provided below the pinion connecting groove; A rotating bolt groove with a built-in thread is provided on the locking cover located on one side of the pinion connecting groove. A rotating bolt is fixed with a thread in the rotating bolt groove. The upper end of the rotating bolt is configured as a disc and fixed to the locking cover. A gear bolt pressure assembly is correspondingly provided below the rotating bolt. The bottom of the gear bolt pressure assembly is mounted on an arc-shaped limit plate that matches the locking cover. The upper surface of the arc-shaped limiting plate is welded with a stiffening rib plate assembly located in the inner groove of the upper locking cover, and the bottom of the gear bolt pressure assembly is fixed to the middle of the stiffening rib plate assembly; The stiffening rib assembly includes a rectangular plate located in the middle, the upper and lower surfaces of the rectangular plate are roughened, and threaded holes are opened at the four corners; ribs extend from both sides of the rectangular plate, and the ribs form a plurality of rectangular frames with hollowed-out middles and equal spacing; The gear bolt pressure assembly includes a cover plate mounted on the rectangular plate by fixing bolts, and the lower surface of the cover plate is roughened; a cylindrical cylinder is integrally connected to the middle of the cover plate, and a threaded gear is provided in the cylindrical cylinder, which rotates in counterposition with the rotating bolt, and the outer side of the threaded gear is meshed with the second pinion, and a disc with the same inner diameter as the cylindrical cylinder is welded to the bottom of the threaded gear; a displacement distance is set between the disc and the bottom of the cylindrical cylinder.

2. A modular horizontal channel steel beam connection device according to claim 1, characterized in that: The first pinion and the second pinion are both provided with the plug-in slot in the middle and are connected via the second plug-in column.

3. The modular horizontal channel steel beam connection device according to claim 1, characterized in that: The inner sides of the locking cover and the two ends of the arc-shaped limiting plate are respectively provided with spring grooves, and springs are provided in the spring grooves.

4. The modular horizontal channel steel beam connection device according to claim 1, characterized in that: The lower surface of the arc-shaped limiting plate is a circular arc structure protruding downward and the surface is roughened.

5. The modular horizontal channel steel beam connection device according to claim 1, characterized in that: The prefabricated channel steel beam is embedded in the grooves on both sides of the I-shaped reinforcement. The upper surface of the prefabricated channel steel beam is provided with an arc groove matching the arc-shaped limit plate, and the surface of the arc groove is roughened; the lower surface of the prefabricated channel steel beam is provided with a striped treatment matching the striped friction surface.

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