Reinforcing steel bar node reinforced connecting device and reinforcing mesh

Abstract

The utility model discloses a reinforcing bar node strengthening connecting device and a reinforcing mesh, which belong to the technical field of reinforcing bar connection, and comprise a first connecting piece, a second connecting piece and an angle adjusting piece, the first connecting piece and the second connecting piece are respectively connected with two ends of the angle adjusting piece; the first connecting piece comprises a first half shaft sleeve, a second half shaft sleeve, a rotating joint and a locking structure, the first half shaft sleeve and the second half shaft sleeve are connected through the rotating joint to form a sleeve for locking a reinforcing steel bar, and the locking structure is arranged at the closed position of the first half shaft sleeve and the second half shaft sleeve. The structure of the second connecting piece is the same as that of the first connecting piece, the first connecting piece and the second connecting piece are connected with different reinforcing steel bars respectively, the connecting angle of the reinforcing steel bars can be adjusted in advance or temporarily on site through the angle adjusting piece, and the strength of connecting reinforcing steel bar joints and the accuracy of angle positioning are improved; and the transition connection strength and the shape stability between large components or different components are improved.

Description

Technical Field

[0001] This utility model relates to the field of rebar connection technology, specifically to a rebar node reinforcement connection device and a rebar mesh. Background Technology

[0002] In civil engineering construction, rebar connections mainly rely on two traditional methods: tying and welding. Although these technologies are mature, their inherent defects are becoming increasingly apparent in engineering construction. For example, tying connections suffer from low node reliability, weak overall structural integrity, and poor force transmission efficiency, especially under dynamic or heavy loads, making them prone to slippage and loosening. Furthermore, they cannot meet the strength requirements for hoisting large-volume, long-span, and heavy rebar components. Welded connections require specialized equipment and a stable power supply, resulting in high construction costs and poor quality control. Welding thermal stress can easily lead to changes in the metallographic structure of the rebar, creating weak areas in mechanical properties. The humid environment on site further exacerbates defects such as porosity and cracks, and the existence of blind spots in inspection further increases structural safety risks. In conventional orthogonal rebar meshes, these problems already have an adverse impact on the structure. With the increasing prevalence of complex components such as irregularly shaped non-orthogonal steel meshes and spatial three-dimensional steel meshes, the limitations of traditional processes have become more apparent. For example, angle control fails, and the binding nodes cannot accurately fix the spatial angles of the steel bars, leading to deviations in the force transmission path and further reducing the component's load-bearing capacity. The process also suffers from insufficient adaptability: welding at three-dimensional nodes has limited operational space, and the superposition of multi-directional thermal stress exacerbates local deformation, making it difficult to meet the strength requirements of complex nodes. Furthermore, construction efficiency is low: the need for staged hoisting and secondary connection reinforcement schemes not only extends the construction period but also makes it difficult to guarantee the integrity and load-bearing capacity of the component. To address these issues, the industry has developed mechanical connection devices such as sleeve connections and threaded connections. While this technology is stable and reliable in unidirectional force transmission scenarios, it still has shortcomings in complex structural applications, such as rigid angles: existing devices mostly adopt fixed angle designs, which cannot dynamically adapt to the arbitrary angle connections required by irregular space frames; limited spatial expansion: relying on end docking mode, it is difficult to achieve lateral connections of the middle section of the steel bars and multi-directional three-dimensional connections; increased costs: custom-made special components are required to achieve multi-angle connections, which is complicated to install and increases construction costs. There is a need for a steel bar connection node device that can strengthen irregular and multi-directional angles to meet the needs of steel mesh structures with different diameters and shapes. Utility Model Content

[0003] One of the objectives of this invention is to provide a reinforced connection device for steel bar nodes, which solves the problems of low connection strength and unsuitability for connecting multi-directional irregular components in existing steel bar node connections.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A reinforced connection device for steel bar joints includes a first connector, a second connector, and an angle adjusting component. The first connector and the second connector are respectively connected to the two ends of the angle adjusting component. The first connector includes a first half-sleeve, a second half-sleeve, a rotating joint, and a locking structure. The first half-sleeve and the second half-sleeve are connected by the rotating joint to form a sleeve for locking the steel bar. The locking structure is located at the closed position of the first half-sleeve and the second half-sleeve. The second connector has the same structure as the first connector. The first connector and the second connector are respectively connected to different steel bars. The angle adjusting component allows for pre-adjustment or temporary adjustment of the steel bar connection angle on-site, improving the strength and angle positioning accuracy of the connected steel bar joints, and enhancing the strength and shape stability of transition connections between large components or different components.

[0006] Furthermore, the angle adjustment component includes a first turntable, a second turntable, a locking pivot, and a locking block. The first turntable is connected to the side wall of the first connecting member, the second turntable is connected to the side wall of the second connecting member, and the locking pivot passes through the first turntable and the second turntable and is connected to the locking block. The connection between the two turntables allows for convenient adjustment of the angles of the two connecting members.

[0007] Preferably, the locking pivot is a stepped bolt, which has a pivot and fastening capability, and is mass-produced and has low operating costs.

[0008] Preferably, the outer wall of the angle adjustment component is provided with a scale indicator mark to determine the rotation angle and improve the accuracy of constructing irregularly shaped components.

[0009] Preferably, the contact surfaces of the first turntable and the second turntable are provided with meshing toothed portions, the toothed portions including multiple end face teeth around the axis of the angle adjusting member, which improves the contact area and the strength of the contact surface and prevents sliding failure.

[0010] Furthermore, the first connector also includes a pin, a first hinge sleeve is provided at the side edge of the first half-shaft sleeve, and a second hinge sleeve is provided at the side edge of the second half-shaft sleeve. The pin passes through the first hinge sleeve and the second hinge sleeve to form a rotatable connection, which facilitates the fixing of the reinforcing bar and is easy to operate.

[0011] Preferably, the inner walls of the first and second half-sleeves are provided with interlocking ribs to prevent the reinforcing bars from coming out of the sleeves.

[0012] As a better fit, one end face of the locking block is provided with a concave arc shape to prevent the locking block from coming out after the reinforcing bar is inserted. The internal thread of the locking block and the internal thread of the second turntable are in a positive-negative relationship to prevent the locking block and the second turntable from being displaced relative to each other.

[0013] Furthermore, the first connector and the second connector are detachably connected to both ends of the angle adjusting member, and different specifications of connectors can be used to connect steel bars of different thicknesses. The modular design reduces the cost of use.

[0014] One of the objectives of this invention is to provide a reinforced connection device for steel bar nodes, which solves the problems of low connection strength and unsuitability for multi-directional irregular components in existing steel bar node connections.

[0015] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0016] A steel mesh, including the aforementioned steel bar node strengthening connection device, improves the overall strength and stability of the steel mesh by strengthening key nodes.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The steel reinforcement node strengthening connection device is connected by the first connector and the second connector respectively to the steel reinforcement at the node. The angle adjustment component can be used to connect steel reinforcement at different angles. It can be directly connected and used, eliminating the tedious operation of traditional binding and welding. The sleeve connects the steel reinforcement, which can prevent wear between steel reinforcement. When used at important nodes of the component, it can effectively improve the overall strength of the steel reinforcement mesh.

[0019] (2) The angle-adjustable connection between the meshing toothed part of the angle-adjustable component and the stepped bolt-type locking pivot on the reinforcing bar node reinforced connection device enables continuous angle adjustment and precise positioning between the two connecting parts, adapting to any non-orthogonal angle requirement of irregularly shaped reinforcing bar mesh. The scale indicator and toothed meshing mechanism ensure the accuracy of angle positioning. Compared with traditional binding nodes, the angle deviation is small, and the force transmission path offset is small. The dimensional deformation of the formed reinforcing bar mesh component is small, meeting the mechanical transmission efficiency requirements and spatial positioning accuracy requirements of complex reinforcing bar mesh nodes, and conforming to the usage requirements of large composite components.

[0020] (3) The connector of the steel bar node strengthening connection device is detachably connected to the angle adjustment component. Different diameter steel bars can be connected by replacing the bushings of different diameters. Different diameter steel bars can be combined together for use. It has versatility, strength and low cost. Attached Figure Description

[0021] Figure 1 Structural diagram of the steel bar node reinforcement connection device provided by this utility model;

[0022] Figure 2 An exploded view of the steel bar node reinforcement connection device provided by this utility model;

[0023] Figure 3 This utility model provides a structural diagram of the reinforcing mesh;

[0024] Figure 4 The steel bar node connection diagram provided for this utility model;

[0025] Figure 5 A diagram showing the rectangular beam node connection structure provided by this utility model;

[0026] Figure 6 The diagram shows the connection structure of the box beam nodes provided by this utility model.

[0027] Figure label:

[0028] 1. First connecting piece; 11. First half-shaft sleeve; 12. Second half-shaft sleeve; 13. Rotating joint; 131. First hinge sleeve; 132. Second hinge sleeve; 14. Locking structure; 141. First boss; 142. Second boss; 143. Fastener; 15. Engaging rib; 2. Second connecting piece; 21. Third half-shaft sleeve; 22. Fourth half-shaft sleeve; 3. Angle adjusting piece; 31. Scale indicator mark; 32. First turntable; 33. Second turntable; 34. Toothed part; 35. Locking pivot; 36. Locking block; 4. First reinforcing bar; 5. Pin; 6. Second reinforcing bar. Detailed Implementation

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

[0030] Example 1

[0031] like Figures 1-6As shown, this embodiment discloses a rebar joint reinforcement connection device, including a first connector 1, a second connector 2, and an angle adjustment device 3. The first connector 1 and the second connector 2 are respectively connected to the two ends of the angle adjustment device 3. The first connector 1 includes a first half-shaft sleeve 11, a second half-shaft sleeve 12, a rotating joint 13, and a locking structure 14. The first half-shaft sleeve 11 and the second half-shaft sleeve 12 are connected by the rotating joint 13 to form a sleeve for locking the rebar. The locking structure 14 is located at the closing position of the first half-shaft sleeve 11 and the second half-shaft sleeve 12. The second connector 2 has the same structure as the first connector 1. The second connector 2 includes a third half-shaft sleeve 21 and a fourth half-shaft sleeve 22. The third half-shaft sleeve 21 and the fourth half-shaft sleeve 22 are connected by the rotating joint 13 to form a sleeve for locking the rebar. The first connector 1 and the second connector 2 are used to fix different rebars. The angle adjustment device 3 can be adjusted in advance or temporarily on site, which is convenient to use and has high connection strength of the joint.

[0032] Furthermore, the angle adjustment component 3 includes a first turntable 32, a second turntable 33, a locking pivot 35, and a locking block 36. The first turntable 32 is connected to the side wall of the first connecting member 1, the second turntable 33 is connected to the side wall of the second connecting member 2, and the locking pivot 35 passes through the first turntable 32 and the second turntable 33 and is connected to the locking block 36. The first turntable 32 and the second turntable 33 are relative to each other to realize the relative angle change of the two connecting members. The locking pivot 35 is connected to the locking block 36 to constrain the two connecting members from relative displacement along the rotation axis.

[0033] More preferably, the locking pivot 35 is a stepped bolt with a smooth shaft in the middle, which can be used for the rotation of two connecting parts. Its end is threaded for fastening connection and has the advantage of low cost, making it suitable for mass production.

[0034] Preferably, the outer wall of the angle adjusting member 3 is provided with a scale indicator mark 31. When rotating the angle adjusting member 3, the angle of the connecting steel bar can be accurately located by comparing the scale indicator mark 31, which improves the overall structural accuracy of the heterogeneous steel bar component and is suitable for use in multi-directional heterogeneous steel bar mesh structures.

[0035] Furthermore, the first connecting member 1 also includes a pin 5, a first hinge sleeve 131 is provided at the side edge of the first half-shaft sleeve 11, and a second hinge sleeve 132 is provided at the side edge of the second half-shaft sleeve 12. The pin 5 passes through the first hinge sleeve 131 and the second hinge sleeve 132 to form a rotatable connection. The rotation and opening of the two half-shaft sleeves on the first connecting member 1 and the second connecting member 2 are realized through the first hinge sleeve 131 and the second hinge sleeve 132. It is convenient to operate during use and can increase the size of the inserted steel bar to a certain extent, thus improving adaptability.

[0036] Preferably, the inner sidewalls of the first half-sleeve 11 and the second half-sleeve 12 are provided with interlocking ribs 15. The interlocking ribs 15 are arranged in the same direction as the surface texture of the steel bar, and multiple interlocking ribs 15 are arranged along the axial direction of the sleeve. The interlocking ribs 15 improve the connection strength and stability between the steel bar and the connector, and prevent slippage at the joint.

[0037] More preferably, the locking structure 14 includes a first boss 141 provided on the side wall of the first half-shaft sleeve 11 and a second boss 142 provided on the side wall of the second half-shaft sleeve 12. The first boss 141 and the second boss 142 are positioned opposite each other and connected by a fastener 143. It is used to close the sleeve to fix the reinforcing bar. It can be repeatedly disassembled and used, and is suitable for on-site construction operations.

[0038] More preferably, an adhesive is added after the reinforcing bars are installed into the sleeve to improve the connection strength and firmness.

[0039] Preferably, the circular end of the locking pivot 35 is fitted into the circular inner groove of the second half-shaft sleeve 12, the optical axis portion of the locking pivot 35 contacts the threaded section of the second half-shaft sleeve 12, and the threaded section engages with the third half-shaft sleeve 21 and the locking block 36 through threads to achieve relative rotation. After the locking pivot 35 is tightened with the locking block 36, it can be relatively fixed with the second half-shaft sleeve 12 and the third half-shaft sleeve 21. Moreover, after the reinforcing bar is inserted, it can prevent the first locking pivot 35 from retracting, thus preventing the locking pivot 35 from loosening.

[0040] More preferably, one end face of the locking block 36 is provided with a concave arc shape, and the cross-section of the locking block 36 is the same as the end shape of the locking pivot 35. The locking block 36 is recessed into the circular inner groove of the third half-shaft sleeve 21, with its concave side facing the reinforcing bar. By contacting the reinforcing bar with its concave side, rotation can be prevented when force is applied, which would cause the locking pivot 35 and the locking block 36 to loosen. The internal thread in the opposite direction to that on the second turntable 33 plays a role in preventing loosening and improving the safety of the connection.

[0041] Furthermore, the first connector 1 and the second connector 2 are detachably connected to both ends of the angle adjusting member 3. The first connector 1 and the second connector 2 can be replaced according to the thickness of the connecting steel bar. The modular design reduces the difficulty of use and storage. The first connector 1 and the second connector 2 can fix steel bars of different thicknesses respectively, and can be used for the transition connection of different steel meshes, thus expanding the application range of this reinforced connection device.

[0042] The usage process of this reinforced steel joint connection device is as follows:

[0043] See Figure 4-6When constructing a steel mesh on a plane or elevation, a reinforcing connection device is used at the key nodes of the steel mesh. First, rotate the first connector 1 to the required angle by the angle adjustment piece 3, then tighten the locking pivot 35 and the locking block 36 to fix the relative angle and position of the first connector 1 and the second connector 2. Open the first connector 1 and the second connector 2, and place the reinforcing connection device at the intersection of the first steel bar 4 and the second steel bar 6 so that the first steel bar 4 and the second steel bar 6 fall into the sleeves of the two connectors and are locked by the locking structure 14. Fix each key node in sequence to complete the overall reinforcement of the steel mesh.

[0044] Example 2

[0045] This embodiment also discloses a steel bar node strengthening connection device. The contact surfaces of the first turntable 32 and the second turntable 33 are provided with meshing toothed parts 34. The toothed parts 34 include multiple end face teeth around the axis of the angle adjustment member 3. The relative positions of the first turntable 32 and the second turntable 33 are fixed by the toothed parts 34. The toothed parts 34 are connected to the second half-shaft sleeve 12 by the locking pivot 35 for pressing. The toothed parts 34 bear the deflection force of the two connecting members. The toothed parts 34 have a large contact area, can withstand a large force, and have accurate angular positioning. They are suitable for use in the key load-bearing nodes of large composite components and can play a role in maintaining the overall shape of the component.

[0046] Example 3

[0047] This embodiment also discloses a steel mesh, including a steel bar node reinforcement connection device, a first steel bar 4 and a second steel bar 6. The first steel bar 4 and the second steel bar 6 are fixed by a first connector 1 and a second connector 2, respectively, which can construct irregular steel mesh on site.

[0048] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A reinforcing bar node reinforcement connection device, characterized by: The steel bar joint reinforcing connecting device comprises a first connecting piece (1), a second connecting piece (2) and an angle adjusting piece (3), the first connecting piece (1) and the second connecting piece (2) are connected to two ends of the angle adjusting piece (3) respectively, the first connecting piece (1) comprises a first half shaft sleeve (11), a second half shaft sleeve (12), a rotating joint (13) and a locking structure (14), the first half shaft sleeve (11) and the second half shaft sleeve (12) are connected by the rotating joint (13) to form a sleeve for locking steel bars, the locking structure (14) is arranged at the closed part of the first half shaft sleeve (11) and the second half shaft sleeve (12), and the second connecting piece (2) is the same in structure as the first connecting piece (1).

2. The steel bar joint reinforcing connecting device according to claim 1, characterized in that: the angle adjusting piece (3) comprises a first rotating platform (32), a second rotating platform (33), a locking pivot (35) and a locking block (36), the first rotating platform (32) is connected to the side wall of the first connecting piece (1), the second rotating platform (33) is connected to the side wall of the second connecting piece (2), and the locking pivot (35) is connected to the locking block (36) by penetrating through the first rotating platform (32) and the second rotating platform (33).

3. The steel bar joint reinforcing connecting device according to claim 2, characterized in that: the locking pivot (35) is a stepped bolt.

4. The steel bar joint reinforcing connecting device according to claim 2, characterized in that: a scale indicating mark (31) is arranged on the outer side wall of the angle adjusting piece (3).

5. The steel bar joint reinforcing connecting device according to claim 2, characterized in that: engaged tooth-shaped parts (34) are arranged on the contact surfaces of the first rotating platform (32) and the second rotating platform (33), and the tooth-shaped parts (34) comprise a plurality of end surface teeth around the shaft center of the angle adjusting piece (3).

6. The steel bar joint reinforcing connecting device according to claim 1, characterized in that: the first connecting piece (1) further comprises a pin shaft (5), a first hinge sleeve (131) is arranged at the side edge of the first half shaft sleeve (11), a second hinge sleeve (132) is arranged at the side edge of the second half shaft sleeve (12), and the pin shaft (5) forms a rotating connection by penetrating through the first hinge sleeve (131) and the second hinge sleeve (132).

7. The steel bar joint reinforcing connecting device according to claim 6, characterized in that: engaging ribs (15) are arranged on the inner side walls of the first half shaft sleeve (11) and the second half shaft sleeve (12).

8. The steel bar joint reinforcing connecting device according to claim 2, characterized in that: an inner concave arc is arranged on one end surface of the locking block (36).

9. The steel bar joint reinforcing connecting device according to any one of claims 1-8, characterized in that: the first connecting piece (1) and the second connecting piece (2) are respectively detachably connected to two ends of the angle adjusting piece (3).

10. A reinforcing mesh characterised by: The steel bar joint reinforcing connecting device according to any one of claims 1-9.

Images