Modularized stiff lightweight concrete beam-column joint

Abstract

The application belongs to the technical field of beam-column joints, and discloses a modularized stiff lightweight concrete beam-column joint, which comprises a stiff block body in the shape of a cube, a plurality of insertion grooves are formed in six surfaces of the stiff block body, a mounting groove is arranged on the stiff block body and close to the insertion grooves, the mounting groove is provided with six and is communicated with the six insertion grooves, a limiting block and a spring are arranged in the mounting groove, one end of the spring is fixed to a position on the inner wall of the mounting groove and away from one side of the insertion block, the other end of the spring is fixed to the limiting block, an abutting block is arranged on the side wall of the insertion block and away from one side of the beam component, a sliding groove is arranged on each of the six side walls of the stiff block body, an abutting inclined surface is arranged at the intersection of the side of the abutting block away from the beam component and the side of the abutting block away from the insertion block, and a pushing inclined surface matched with the abutting inclined surface is arranged on the limiting block. The application changes the connection mode between the beam component and the stiff block body in the traditional technology, and improves the assembly efficiency of the beam component and the stiff block body.

Description

Technical Field

[0001] This invention relates to the field of beam-column joint technology, and in particular to a modular, rigid, lightweight concrete beam-column joint. Background Technology

[0002] Prefabricated concrete structures are an important structural form that meets the upgrading needs of the construction industry. Current mainstream technical solutions mainly include: fully prefabricated monolithic reinforced concrete shear wall structures, fully prefabricated monolithic reinforced concrete frame structures, prefabricated steel-concrete composite structures, and prefabricated steel-reinforced concrete structures. All of these structures are assembled from prefabricated components in a factory, with connection methods primarily including bolted connections, rebar lap splices, and grouting sleeves.

[0003] However, existing prefabricated modular structures have extremely large individual components and complex connections between components. This necessitates the use of large construction machinery and a large number of specialized construction workers for construction and installation, which undoubtedly increases construction costs and slows down construction speed. Furthermore, existing prefabricated concrete structures are designed as permanent structures, without emphasizing the ease of demolition or the feasibility of reconfiguration to meet user needs. Therefore, for special scenarios such as training facilities and temporary buildings, they cannot meet the requirements for flexible disassembly and reconstruction, convenient assembly, and rapid construction without heavy machinery assistance.

[0004] Chinese invention patent application CN117107902A discloses a modular, rigid, lightweight concrete beam-column joint, which mainly includes lightweight concrete, a rigid frame, connecting holes, and a three-axis box-type component interior. The lightweight concrete is cast together with the rigid frame. The three-axis box-type component interior is located at the end of the lightweight concrete. The three-axis box-type component is internally located within the lightweight concrete and is either a cavity or a lightweight filler. The beam-column joint is a three-axis box-type component with a cross-shaped horizontal cross section. The horizontal lightweight rigid chords in the rigid frame form a "well" shape, with reinforcement zones at their ends, and are connected to the upper and lower ends of the lightweight rigid vertical members inside the reinforcement zones. The horizontal lightweight rigid chords are located on the edges of each end of the beam-column joint along the beam axis, and multiple anchoring ends are provided on the horizontal lightweight rigid chords. The beam-column joint is connected to the beam component through connecting holes. The connecting holes are vertically arranged at the inside corners of each limb of the beam-column joint and are used to connect with the column members set above and below; the upper and lower ends of the connecting holes are respectively fixed on the upper and lower sets of "well"-shaped horizontal lightweight stiff chords.

[0005] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the beam members in each direction are fixedly connected to the rigid frame by multiple bolts, and the installation and disassembly process requires tightening multiple bolts one by one, which is inconvenient. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a modular, rigid, lightweight concrete beam-column joint.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a modular rigid lightweight concrete beam-column joint, comprising a rigid block for use with a beam member, the rigid block being cubic in shape, with insertion grooves on each of the six faces of the rigid block for engaging with insertion blocks at the ends of the beam member, and an installation groove provided in the body of the rigid block near the insertion groove, the installation groove having six installation grooves and communicating with the six insertion grooves respectively, a limiting block and a spring being provided in the installation groove for sliding engagement with the installation groove, one end of the spring being fixed to the inner wall of the installation groove away from the insertion block, the other end of the spring being fixed to the limiting block, an abutment block being provided on the side wall of the insertion block away from the beam member, and a sliding groove being provided on each of the six side walls of the rigid block for engaging with the abutment block and communicating with both the insertion groove and the installation groove, an abutment ramp being provided at the intersection of the side of the abutment block away from the beam member and the side of the abutment block away from the insertion block, and a pushing ramp being provided on the limiting block for engaging with the abutment ramp.

[0008] By adopting the above technical solution, when installing the beam component onto the rigid block, the worker only needs to push the beam component so that the insertion block aligns with the insertion slot on the rigid block and inserts it. The abutting inclined surface on the abutting block abuts against the pushing inclined surface on the limiting block and pushes the limiting block to slide along the installation groove. The spring gradually contracts. When the abutting block moves to the side where the limiting block is away from the beam component, the limiting block resets under the elastic force of the spring, and the limiting block and the abutting block engage, thereby limiting the retraction of the beam component and enhancing the connection stability between the beam component and the rigid block.

[0009] Furthermore, the rigid block body is provided with interconnected X-plane grooves, Y-plane grooves and Z-plane grooves. The six mounting grooves are connected to the X-plane grooves, Y-plane grooves and Z-plane grooves in pairs. The six insertion grooves are connected to the X-plane grooves, Y-plane grooves and Z-plane grooves in pairs. The X-plane grooves, Y-plane grooves and Z-plane grooves are each provided with a traction component for driving two symmetrically distributed limiting blocks to be respectively inserted into the two mounting grooves. The Z-plane groove is provided with a drive component for driving the traction component to retract.

[0010] Furthermore, the traction assembly includes a connecting rope for connecting two symmetrically arranged limiting blocks, a pulley disposed within the rigid block, and a traction rope fixed to the middle section of the connecting rope. The three traction ropes are simultaneously driven by the driving assembly to cause the limiting blocks to retract into the mounting slots. The pulleys are located near the corners of the X-plane slot, Y-plane slot, or Z-plane slot. There are six pulleys. Rotating rods are arranged in groups in the X-plane slot, Y-plane slot, and Z-plane slot. Two rotating rods in a group are located on both sides of the traction rope to maintain the stability of the connecting rope during the traction process. There are six pulleys, each located in one of the six mounting slots, and the pulleys are rotatably connected to the sidewalls of the X-plane slot, Y-plane slot, or Z-plane slot.

[0011] By adopting the above technical solution, when disassembling the beam component, the worker only needs to drive the traction rope through the drive component to make the limiting block retract into the installation groove, so as to facilitate the removal of the abutment block from the sliding groove, thereby disassembling the beam component from the rigid block. The setting of the rotating rod and pulley enhances the stability of the connecting rope and traction rope during the pulling of the limiting block.

[0012] Furthermore, each of the rotating rods is fixedly fitted with a limiting plate, and there are two limiting plates on each rotating rod, which are symmetrically distributed about the connecting rope.

[0013] By adopting the above technical solution, the setting of the limiting plate reduces the probability of the connecting rope detaching from the rotating rod and enhances the stability of the connecting rope during the process of pulling the limiting block by the traction rope.

[0014] Furthermore, the drive assembly includes a motor fixed within the rigid block, a threaded rod fixed to the upper end of the motor's output shaft, a sleeve sleeved on and threadedly connected to the threaded rod, a fixing plate fixed to the outer wall of the sleeve near the lower end of the sleeve, a guide rod fixed within the rigid block, and a central ball fixed to the upper end of the sleeve. The guide rod passes through the fixing plate and slides with the fixing plate. The central ball is fixed to the ends of the three traction ropes and is located at the center of the rigid block.

[0015] By adopting the above technical solution, after the motor works, it drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the sleeve, the fixed plate on the sleeve slides with the guide rod, thereby causing the sleeve to rise and fall in the vertical direction. The central ball pulls the three connecting ropes through the three traction ropes, thereby causing the multiple limit blocks to retract into the multiple mounting slots, so that the abutment block can slide out from the sliding slot.

[0016] Furthermore, the motor is a servo motor.

[0017] Furthermore, a chamfer is provided at the intersection of the surface of the plug block away from the beam member and the side wall of the plug block.

[0018] By adopting the above technical solution, the chamfered part reduces the difficulty of connecting the plug block and the plug slot.

[0019] Furthermore, the cross-section of the limiting block is a right trapezoid, and there are three connecting ropes, with each end of the connecting rope fixed to the surfaces of the two limiting blocks that are far apart from each other.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. In this application, when installing the beam component onto the rigid block, the worker only needs to push the beam component so that the insertion block aligns with the insertion slot on the rigid block and inserts it. The abutting inclined surface on the abutting block abuts against the pushing inclined surface on the limiting block and pushes the limiting block to slide along the mounting slot. The spring gradually contracts. When the abutting block moves to the side where the limiting block is away from the beam component, the limiting block resets under the elastic force of the spring. The limiting block and the abutting block are engaged, thereby limiting the retraction of the beam component and enhancing the connection stability between the beam component and the rigid block.

[0022] 2. In this application, when disassembling the beam component, the worker only needs to drive the traction rope through the drive component to make the limiting block retract into the installation groove, so as to facilitate the removal of the abutment block from the sliding groove, thereby disassembling the beam component from the rigid block. The setting of the rotating rod and pulley enhances the stability of the connecting rope and traction rope during the pulling of the limiting block.

[0023] 3. In this application, after the motor works, it drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the sleeve, the fixed plate on the sleeve slides with the guide rod, thereby causing the sleeve to rise and fall in the vertical direction. The central ball pulls the three connecting ropes through the three traction ropes, thereby causing the multiple limit blocks to retract into the multiple mounting slots, so that the abutment block slides out from the sliding slot. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the connection structure between the stiffening block and the beam component in an embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional view used in an embodiment of the present invention to highlight the internal structure of the rigid block;

[0027] Figure 4 This is a structural schematic diagram of an embodiment of the present invention used to highlight the traction component and the drive component.

[0028] In the diagram: 1. Rigid block; 11. Insertion groove; 12. Mounting groove; 121. Limiting block; 1211. Pushing ramp; 122. Spring; 13. Sliding groove; 14. X-plane groove; 15. Y-plane groove; 16. Z-plane groove; 2. Traction assembly; 21. Connecting rope; 22. Pulley; 23. Traction rope; 3. Drive assembly; 31. Motor; 32. Threaded rod; 33. Sleeve; 34. Fixing plate; 35. Guide rod; 36. Center ball; 4. Beam component; 41. Insertion block; 411. Chamfer; 5. Abutment block; 51. Abutment ramp; 6. Rotating rod; 61. Limiting plate. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-4 As shown in the embodiment of this application, a modular rigid lightweight concrete beam-column joint is disclosed, including a rigid block 1, a traction component 2, and a drive component 3. The rigid block 1 is a cubic structure, and the cubic shape is used to cooperate with the beam component 4. Each of the six faces of the rigid block 1 has a plug groove 11 that cooperates with the plug block 41 at the end of the beam component 4. An installation groove 12 is provided in the rigid block 1 near the plug groove 11. There are six installation grooves 12, which are respectively connected to the six plug grooves 11. A limiting block 121 and a spring 122 are provided in the installation groove 12 and slide to cooperate with the installation groove 12. One end of the spring 122 is fixed to the inner wall of the installation groove 12 away from the plug block 41, and the other end of the spring 122 is fixed to the limiting block 121.

[0031] In this embodiment, an abutment block 5 is provided on the side wall of the plug-in block 41 away from the beam member 4. Each of the six side walls of the rigid block 1 has a sliding groove 13 that mates with the abutment block 5 and communicates with both the plug-in groove 11 and the mounting groove 12. An abutment slope 51 is provided at the intersection of the side of the abutment block 5 away from the beam member 4 and the side of the abutment block 5 away from the plug-in block 41. A pushing slope 1211 that mates with the abutment slope 51 is provided on the limiting block 121. The rigid block 1 has interconnected X-plane grooves 14, Y-plane grooves 15, and Z-plane grooves 16. The six mounting grooves 12 are connected in pairs to the X-plane grooves 14, Y-plane grooves 15, and Z-plane grooves 16. The six plug-in grooves 11 are also connected in pairs to the X-plane grooves 14, Y-plane grooves 15, and Z-plane grooves 16.

[0032] The traction assembly 2 is provided in three sets, located in the X-plane groove 14, Y-plane groove 15 and Z-plane groove 16 respectively, and is used to drive the two symmetrically distributed limiting blocks 121 into the two mounting grooves 12 respectively. The traction assembly 2 includes a connecting rope 21 for connecting the two symmetrically arranged limiting blocks 121, a pulley 22 set in the rigid block 1, and a traction rope 23 fixed to the middle section of the connecting rope 21. The three traction ropes 23 are driven simultaneously by the driving assembly 3 so that the limiting blocks 121 are retracted into the mounting grooves 12. The pulley 22 is located near the corner of the X-plane groove 14, Y-plane groove 15 or Z-plane groove 16. There are six pulleys 22. Rotating rods 6 are arranged in groups in the X-plane groove 14, Y-plane groove 15 and Z-plane groove 16.

[0033] In this embodiment, two rotating rods 6 are respectively located on both sides of the traction rope 23 to maintain the stability of the connecting rope 21 during the process of being dragged by the traction rope 23. There are six pulleys 22, which are respectively located in the positions of the six mounting slots 12, and the pulleys 22 are rotatably connected to the side walls of the X-plane slot 14, Y-plane slot 15 or Z-plane slot 16.

[0034] The drive assembly 3 is disposed in the Z-plane groove 16 and is used to drive the traction assembly 2 to retract. The drive assembly 3 includes a motor 31 fixed in the rigid block 1, a threaded rod 32 fixed to the upper end of the output shaft of the motor 31, a sleeve 33 sleeved on the threaded rod 32 and threadedly connected to the threaded rod 32, a fixing plate 34 fixed on the outer wall of the sleeve 33 near the lower end of the sleeve 33, a guide rod 35 fixed in the rigid block 1, and a center ball 36 fixed to the upper end of the sleeve 33. The motor 31 is a servo motor 31. The guide rod 35 passes through the fixing plate 34 and slides with the fixing plate 34. The center ball 36 is fixed to the ends of the three traction ropes 23 and is located at the center of the rigid block 1.

[0035] In this embodiment, the cross-section of the limiting block 121 is a right-angled trapezoid, and three connecting ropes 21 are provided. The two ends of each connecting rope 21 are fixed to the surfaces of two limiting blocks 121 that are far apart from each other. When installing the beam member 4 onto the rigid block 1, the operator only needs to push the beam member 4 so that the insertion block 41 aligns with the insertion slot 11 on the rigid block 1 and is inserted. The abutting inclined surface 51 on the abutting block 5 abuts against the pushing inclined surface 1211 on the limiting block 121 and pushes the limiting block 121 to slide along the mounting groove 12. The spring 122 gradually contracts. When the abutting block 5 moves to the side of the limiting block 121 that is far away from the beam member 4, the limiting block 121 is reset under the elastic force of the spring 122, and the limiting block 121 and the abutting block 5 are engaged, thereby limiting the retraction of the beam member 4 and enhancing the connection stability between the beam member 4 and the rigid block 1. When disassembling beam component 4, the worker only needs to turn on motor 31. After motor 31 works, it drives threaded rod 32 to rotate. Since threaded rod 32 is threadedly connected to sleeve 33, fixed plate 34 on sleeve 33 slides with guide rod 35, thereby causing sleeve 33 to rise and fall in the vertical direction. Center ball 36 pulls three connecting ropes 21 through three traction ropes 23, thereby causing multiple limit blocks 121 to retract into multiple mounting slots 12, so that abutment block 5 can slide out from sliding slot 13.

[0036] To enhance the stability of the connecting rope 21 during use, a limiting plate 61 is fixedly fitted on each rotating rod 6. Two limiting plates 61 are provided on each rotating rod 6 and are symmetrically distributed about the connecting rope 21. The setting of the limiting plates 61 reduces the probability of the connecting rope 21 detaching from the rotating rod 6 and enhances the stability of the connecting rope 21 when it is pulled by the traction rope 23 to move the limiting block 121.

[0037] To reduce the difficulty of aligning and inserting the plug block 41 with the plug slot 11, a chamfer 411 is provided at the intersection of the surface of the plug block 41 away from the beam member 4 and the side wall of the plug block 41.

[0038] The working principle of a modular rigid lightweight concrete beam-column joint in this embodiment is as follows: When installing the beam member 4 onto the rigid block 1, the worker only needs to push the beam member 4 so that the insertion block 41 aligns with the insertion slot 11 on the rigid block 1 and is inserted. The abutting inclined surface 51 on the abutting block 5 abuts against the pushing inclined surface 1211 on the limiting block 121 and pushes the limiting block 121 to slide along the mounting groove 12. The spring 122 gradually contracts. When the abutting block 5 moves to the side where the limiting block 121 is away from the beam member 4, the limiting block 121 resets under the elastic force of the spring 122. The limiting block 121 and the abutting block 5 are engaged, thereby limiting the retraction of the beam member 4 and enhancing the connection stability between the beam member 4 and the rigid block 1. When disassembling beam component 4, the worker only needs to turn on motor 31. After motor 31 works, it drives threaded rod 32 to rotate. Since threaded rod 32 is threadedly connected to sleeve 33, fixed plate 34 on sleeve 33 slides with guide rod 35, thereby causing sleeve 33 to rise and fall in the vertical direction. Center ball 36 pulls three connecting ropes 21 through three traction ropes 23, thereby causing multiple limit blocks 121 to retract into multiple mounting slots 12, so that abutment block 5 can slide out from sliding slot 13.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A modular, stiffened, lightweight concrete beam-column joint, comprising a stiffening block (1) for use with a beam member (4), the stiffening block (1) being cubic in shape, characterized in that: The rigid block (1) has six insertion slots (11) on each of its six sides, which mate with the insertion blocks (41) at the ends of the beam members (4). An installation groove (12) is provided inside the rigid block (1) near the insertion slot (11). There are six installation grooves (12) that communicate with the six insertion slots (11). Each installation groove (12) contains a limiting block (121) that slides within it, and a spring (122). One end of the spring (122) is fixed to the inner wall of the installation groove (12) away from the insertion block (41). The other end of the plug-in block (41) is fixed to the limiting block (121). An abutment block (5) is provided on the side wall of the plug-in block (4) away from the beam member (4). A sliding groove (13) is provided on each of the six side walls of the rigid block (1) to cooperate with the abutment block (5) and to communicate with both the plug-in groove (11) and the mounting groove (12). An abutment slope (51) is provided at the intersection of the side of the abutment block (5) away from the beam member (4) and the side of the abutment block (5) away from the plug-in block (41). A pushing slope (1211) is provided on the limiting block (121) to cooperate with the abutment slope (51). The rigid block (1) is provided with interconnected X-plane grooves (14), Y-plane grooves (15) and Z-plane grooves (16). The six mounting grooves (12) are connected to the X-plane grooves (14), Y-plane grooves (15) and Z-plane grooves (16) in pairs. The six plug-in grooves (11) are connected to the X-plane grooves (14), Y-plane grooves (15) and Z-plane grooves (16) in pairs. The X-plane grooves (14), Y-plane grooves (15) and Z-plane grooves (16) are each provided with a traction component (2) for driving two symmetrically distributed limiting blocks (121) to be respectively inserted into the two mounting grooves (12). The Z-plane groove (16) is provided with a drive component (3) for driving the traction component (2) to retract. The traction assembly (2) includes a connecting rope (21) for connecting two symmetrically arranged limiting blocks (121), a pulley (22) disposed in the rigid block (1), and a traction rope (23) fixed to the middle section of the connecting rope (21). The three traction ropes (23) are simultaneously driven by the driving assembly (3) so that the limiting blocks (121) are retracted into the mounting groove (12). The pulley (22) is located near the corner of the X-plane groove (14), Y-plane groove (15), or Z-plane groove (16). There are six, and rotating rods (6) are arranged in groups in the X-plane groove (14), Y-plane groove (15), and Z-plane groove (16). The two rotating rods (6) in the group are located on both sides of the traction rope (23) to maintain the stability of the connecting rope (21) during the process of being dragged by the traction rope (23). There are six pulleys (22) and they are located in the positions of the six mounting grooves (12). The pulleys (22) are rotatably connected to the side wall of the X-plane groove (14), Y-plane groove (15), or Z-plane groove (16).

2. The modular, stiffened, lightweight concrete beam-column joint according to claim 1, characterized in that: Each of the rotating rods (6) is fixedly fitted with a limiting plate (61), and each of the rotating rods (6) has two limiting plates (61) which are symmetrically distributed about the connecting rope (21).

3. A modular, stiff, lightweight concrete beam-column joint according to claim 2, characterized in that: The drive assembly (3) includes a motor (31) fixed inside the rigid block (1), a threaded rod (32) fixed to the upper end of the output shaft of the motor (31), a sleeve (33) sleeved on the threaded rod (32) and threadedly connected to the threaded rod (32), a fixing plate (34) fixed to the outer wall of the sleeve (33) near the lower end of the sleeve (33), a guide rod (35) fixed inside the rigid block (1), and a center ball (36) fixed to the upper end of the sleeve (33). The guide rod (35) passes through the fixing plate (34) and slides with the fixing plate (34). The center ball (36) is fixed to the ends of the three traction ropes (23) and is located at the center of the rigid block (1).

4. A modular, stiff, lightweight concrete beam-column joint according to claim 3, characterized in that: The motor (31) is a servo motor.

5. A modular, stiff, lightweight concrete beam-column joint according to claim 3, characterized in that: The surface of the plug block (41) away from the beam member (4) and the side wall of the plug block (41) are provided with chamfered parts (411).

6. A modular, stiff, lightweight concrete beam-column joint according to claim 3, characterized in that: The cross-section of the limiting block (121) is a right trapezoid, and there are three connecting ropes (21). The two ends of each connecting rope (21) are fixed to the surfaces of the two limiting blocks (121) that are far apart from each other.

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