A new threaded steel bar connecting anchor assembly

Abstract

The utility model relates to reinforcing bar connecting technical field discloses a new threaded reinforcing bar connecting anchorage assembly, including two split locking piece, two locking piece outside is equipped with fixed sleeve, fixed sleeve be two split arc sleeve and constitute, two arc sleeve opposite end face respectively be provided with connecting groove and connecting block, connecting groove and connecting block all along arc sleeve length direction are provided with and from arc sleeve top end extend to bottom, the utility model, need not in advance in reinforcing bar outside wear fixed sleeve to simplify construction procedure, avoided because fixed sleeve improper installation leads to rework problem, improved reinforcing bar connection's reliability and construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rebar connection technology, and in particular to a novel threaded rebar connection anchor assembly. Background Technology

[0002] In the field of building construction, the construction of a steel reinforcement cage is a crucial step in ensuring structural strength and stability, and the reliable connection between the steel bars is the core procedure in the construction of the steel reinforcement cage. In particular, when the ends of two steel bars need to be butt-jointed, the quality of the connection directly affects the load-bearing capacity and safety of the entire structure. For a long time, the industry has generally used welding or threaded connections to butt the ends of reinforcing bars. While welding can achieve high connection strength, it is greatly affected by factors such as the welder's skill level and the on-site environment (e.g., humidity and temperature), making it prone to quality problems such as incomplete welds and slag inclusions. Furthermore, the high temperatures generated during welding can lead to a decrease in the local mechanical properties of the reinforcing bars. It also suffers from low construction efficiency, high energy consumption, and environmental issues. Threaded connections require threading the ends of the reinforcing bars, which not only increases the number of steps and costs, but is also time-consuming and labor-intensive for larger diameter reinforcing bars, especially in confined spaces. Moreover, the thread fit requires high precision, and damage to the threads can affect the reliability of the connection. With continuous innovation in construction technology, a connection method using locking plates and fixing sleeves has gradually gained application. This method typically involves placing opposing locking plates on the outside of two butt-jointed reinforcing bars. The locking plates create a clamping force on the bars, and a circular fixing sleeve is then placed over the locking plates. The constraint of the fixing sleeve further enhances the clamping effect of the locking plates on the reinforcing bars, thus achieving the connection between the two bars. This method simplifies the operation process and improves construction efficiency to some extent. However, the aforementioned connection method using a circular fixing sleeve has significant operational limitations: because the fixing sleeve is an integral circular structure, it must be pre-installed on one of the reinforcing bars before the rebars are joined. After the rebars are joined and the locking plates are installed, the fixing sleeve is then slid to the outside of the locking plates to complete the fixation. However, in actual construction, due to the complexity of on-site procedures and worker negligence, it is very easy to forget to pre-install the fixing sleeve; or after installation, quality problems such as dimensional deviations or deformation of the fixing sleeve may be discovered. At this point, the rebar is basically in place and its position is relatively fixed. Especially when the rebar skeleton has been partially formed, removing or reinstalling the integral fixing sleeve from the rebar is not only extremely difficult, but may also disturb or even damage the installed rebars or other components, seriously affecting the construction progress and quality. Therefore, in view of the inconvenience caused by the integral fixing sleeve in the existing rebar connection technology, there is an urgent need for a new type of threaded rebar connection anchor assembly that does not require the fixing sleeve to be pre-installed on the outside of the rebar, so as to simplify the construction process, avoid rework problems caused by improper installation of the fixing sleeve, and improve the reliability and construction efficiency of rebar connection. Utility Model Content

[0003] The purpose of this invention is to provide a novel threaded rebar connection anchor assembly that eliminates the need for pre-installing a fixing sleeve on the outside of the rebar, thereby simplifying the construction process, avoiding rework problems caused by improper installation of the fixing sleeve, and improving the reliability and construction efficiency of the rebar connection.

[0004] The present invention adopts the following technical solution: A novel threaded rebar connection anchor assembly includes two separate locking plates. A fixing sleeve is fitted around the two locking plates. The fixing sleeve is composed of two separate arc-shaped sleeves. A connecting groove and a connecting block are respectively provided on the opposite end faces of the two arc-shaped sleeves. The connecting groove and the connecting block are both arranged along the length direction of the arc-shaped sleeve and extend from the top end of the arc-shaped sleeve to the bottom end.

[0005] Preferably, the joint connecting the two arc-shaped sleeves is not overlapped with the joint connecting the two locking pieces.

[0006] Preferably, the joint connecting the two arc-shaped sleeves is arranged perpendicularly to the joint connecting the two locking pieces.

[0007] Preferably, each of the arc-shaped sleeves is provided with ear plates at both ends, and the connecting groove and the connecting block are respectively provided at the end where the ear plates of the two arc-shaped sleeves are in contact.

[0008] Preferably, the connecting groove and the connecting block are alternately arranged on the ear plate and the arc-shaped sleeve on the same side.

[0009] Preferably, the connecting block has a T-shaped structure, and the connecting groove matches the connecting block.

[0010] Preferably, the included angle between the connecting block and the connecting groove is an arc-shaped transition structure.

[0011] Preferably, the ear plate and the arc-shaped sleeve are integrally formed.

[0012] Preferably, one of the connecting grooves has a closed end and the other connecting groove has a closed bottom end.

[0013] Preferably, the inner wall of the locking piece is provided with anti-slip stripes.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: By setting the fixing sleeve as a split structure, it is not necessary to pre-install it before the rebar is joined during construction. After the two rebars are joined and the locking plate is installed, the two arc-shaped sleeves can be directly fastened to the outside of the locking plate from the outside of the rebars. The assembly of the fixing sleeve is completed by the cooperation of the connecting groove and the connecting block. This fundamentally solves the operational problems caused by forgetting to install or needing to rework after installation in existing integral fixing sleeves, greatly reducing the construction error rate and improving work efficiency. The connecting groove and the connecting block are set along the length of the arc-shaped sleeve and extend from its top to its bottom, ensuring that the two arc-shaped sleeves can form a stable integral structure when fastened, producing a uniform and continuous constraint on the locking plate, ensuring the clamping effect of the locking plate on the rebar, and thus improving the strength and stability of the rebar connection. At the same time, if the fixing sleeve has dimensional deviations or damage, the arc-shaped sleeve can be directly disassembled and replaced without disturbing the position of the rebar, making the operation flexible and convenient.

[0015] This invention eliminates the need for pre-installation and adjustment of the fixing sleeve, reducing material waste and labor time losses caused by rework, and indirectly lowering construction costs. Simultaneously, it avoids damage to reinforcing bars or components that may result from forcibly disassembling the integral fixing sleeve, thus conserving resources and meeting the requirements of green construction. Attached Figure Description

[0016] Figure 1 This is a front view of an embodiment of this application; Figure 2 This is a front view of the two arc-shaped sleeves when separated according to an embodiment of this application; Figure 3 for Figure 1 Top view; Figure 4 for Figure 3 A partial sectional view. Detailed Implementation

[0017] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 4As shown, this utility model discloses a novel threaded rebar connection anchor assembly, comprising two separate locking plates 1. The inner wall of each locking plate 1 is provided with anti-slip stripes to increase friction between the locking plate 1 and the rebar, thereby improving the stability of the connection. A fixing sleeve is fitted around each locking plate 1, consisting of two separate arc-shaped sleeves 2. Connecting grooves 3 and connecting blocks 4 are respectively provided on the opposite end faces of the two arc-shaped sleeves 2. Both the connecting grooves 3 and connecting blocks 4 are arranged along the length of the arc-shaped sleeves 2 and extend from the top to the bottom. During operation, the locking plates 1 are fixed by inserting the connecting blocks 4 into the connecting grooves 3, thus quickly connecting the two rebars. Pre-installation and adjustment of the fixing sleeves are unnecessary, reducing material waste and labor time associated with rework, indirectly lowering construction costs. Simultaneously, it avoids damage to the rebars or components that may result from forcibly disassembling the integral fixing sleeve, thus conserving resources.

[0018] In this embodiment, the connecting groove 3 and the connecting block 4 are arranged along the length of the arc sleeve 2 and extend from its top end to its bottom end, which can ensure that the two arc sleeves 2 can form a stable overall structure when they are fastened, and produce a uniform and continuous constraint on the locking piece 1, ensuring the clamping effect of the locking piece 1 on the reinforcing bar, thereby improving the strength and stability of the reinforcing bar connection.

[0019] Furthermore, the joint connecting the two arc-shaped sleeves 2 is not overlapped with the joint connecting the two locking pieces 1. This arrangement allows stress to be more evenly distributed within the connection structure, avoiding stress concentration at the same location, thereby significantly improving the load-bearing capacity and fatigue resistance of the entire connection assembly and better securing the two reinforcing bars. Preferably, the joint connecting the two arc-shaped sleeves 2 is perpendicular to the joint connecting the two locking pieces 1; this perpendicular arrangement minimizes the superposition of stress concentration areas, resulting in a more balanced force distribution between the locking pieces 1 and the fixing sleeve.

[0020] Furthermore, each arc-shaped sleeve 2 is provided with ear plates 5 at both ends. The ear plates 5 are preferably integrally formed with the arc-shaped sleeve 2. The ends of the ear plates 5 on the two arc-shaped sleeves 2 that are in contact are respectively provided with connecting grooves 3 and connecting blocks 4. The addition of ear plates 5 allows the two arc-shaped sleeves 2 to make contact with each other in addition to the cooperation of the arc surfaces when they are connected. This increases the connection area of ​​the two arc-shaped sleeves 2, which allows the force to be more dispersed during transmission and avoids excessive pressure due to the small local contact area, thus laying the foundation for improving the connection effect. At the same time, it makes the connection between the two arc-shaped sleeves 2 more firm and tight, reducing structural shaking caused by loose connection.

[0021] Furthermore, in this embodiment, the connecting groove 3 and the connecting block 4 are alternately arranged on the ear plate 5 and the arc-shaped sleeve 2 on the same side. That is, the connecting groove 3 and the connecting block 4 are respectively provided on one side of the arc-shaped sleeve 2, while the connecting block 4 and the connecting groove 3 are provided on the other symmetrical arc-shaped sleeve 2; the alternating arrangement enables the two arc-shaped sleeves 2 to form a balanced force-bearing structure with mutual interlocking when connected. When the two arc-shaped sleeves 2 are fastened, the connecting block 4 of one arc-shaped sleeve 2 is embedded in the connecting groove 3 of the other arc-shaped sleeve 2, and at the same time, the connecting groove 3 of the arc-shaped sleeve 2 on one side cooperates with the connecting block 4 of the other arc-shaped sleeve 2. This symmetrical alternating cooperation method makes the force transmission point between the two arc-shaped sleeves 2 evenly distributed on both sides. At this time, whether the steel bar is subjected to tensile force, compressive force or lateral force, the stress generated will be transmitted to the two arc-shaped sleeves 2 through the cooperation point of the connecting groove 3 and the connecting block 4, avoiding the situation where the stress is concentrated on a single arc-shaped sleeve 2 or a connection point on one side, truly realizing the even distribution of the force point on the two arc-shaped sleeves 2, and ensuring the uniformity of the force on the overall structure. Meanwhile, due to the symmetrical alternating connection on both sides, the two arc-shaped sleeves 2 form a mutually restrictive and mutually supportive relationship when bearing loads, preventing deformation or loosening due to excessive stress on one side of the connection structure. This ensures a more stable constraint effect of the overall fixing sleeve on the locking piece 1, providing a solid guarantee for the reliable connection of the two reinforcing bars. This effectively enhances the stability and synergy of the connection between the two arc-shaped sleeves 2.

[0022] In this embodiment, the connecting block 4 has a T-shaped structure, and the connecting groove 3 matches the connecting block 4. Preferably, the included angle of the connecting block 4 and the connecting groove 3 is an arc-shaped transition structure. The arc-shaped transition structure allows stress to be gradually dispersed and transferred along the arc-shaped surface at the corner, avoiding excessive stress accumulation at a certain point, significantly improving the structural strength and fatigue resistance of the connecting block 4 and the connecting groove 3, and extending the service life of the component. The arc-shaped transition structure can also reduce friction and wear between the connecting block 4 and the connecting groove 3 during installation and stress. When installing and fastening, the corner of the arc-shaped transition will not form a sharp contact point, which can reduce the resistance when the connecting block 4 is embedded in the connecting groove 3, making the assembly process smoother and more convenient, and reducing scratch damage to the surface of the component.

[0023] Furthermore, in this embodiment, one of the connecting grooves 3 has a closed fixed end, and the bottom end of the other connecting groove 3 is also closed. For example... Figure 3As shown, preferably, the top ends of the two outer connecting grooves 3 are closed, and the bottom ends of the two inner connecting grooves 3 are closed. The closed ends of the connecting grooves 3 can play a clear positioning role during the engagement of the two arc-shaped sleeves 2. When the two arc-shaped sleeves 2 are aligned along the length direction, the closed structure at the top of the outer connecting groove 3 will prevent the connecting block 4 from moving excessively upward, while the closed structure at the bottom of the inner connecting groove 3 will limit the connecting block 4 from moving excessively downward, forming a two-way limiting constraint. This constraint can guide the connecting block 4 to be accurately embedded along the open end of the connecting groove 3 and achieve position locking at the closed end, avoiding the connecting block 4 from exceeding the preset mating range due to improper force or misalignment during installation, ensuring that the two arc-shaped sleeves 2 are completely aligned in the length direction and achieving seamless connection. At the same time, the two-way limiting setting can enhance the stability of the connection structure.

[0024] In use, the two locking pieces 1 are first placed on the outside of the upper and lower reinforcing bars. Then, the arc-shaped sleeve 2 is installed so that the connecting block 4 on the arc-shaped sleeve 2 is inserted into the connecting groove 3. Finally, the two ends of the hydraulic clamp are respectively abutted against the top of the upper arc-shaped sleeve 2 and the bottom of the lower arc-shaped sleeve 2 to control the relative movement of the two arc-shaped sleeves 2 to complete the connection. The structure is simple, the operation is convenient, and the practicality is strong.

Claims

1. A novel threaded rebar connection anchor assembly, comprising two separate locking plates, wherein a fixing sleeve is fitted over the two locking plates, characterized in that: The fixing sleeve is composed of two separate arc-shaped sleeves. A connecting groove and a connecting block are respectively provided on the opposite end faces of the two arc-shaped sleeves. The connecting groove and the connecting block are both arranged along the length direction of the arc-shaped sleeve and extend from the top end to the bottom end of the arc-shaped sleeve.

2. The novel threaded rebar connection anchor assembly according to claim 1, characterized in that: The joint connecting the two arc-shaped sleeves is not overlapped with the joint connecting the two locking pieces.

3. The novel threaded rebar connection anchor assembly according to claim 2, characterized in that: The joint connecting the two arc-shaped sleeves is arranged perpendicularly to the joint connecting the two locking pieces.

4. The novel threaded rebar connection anchor assembly according to any one of claims 1-3, characterized in that: Each of the arc-shaped sleeves has ear plates at both ends, and the connecting groove and the connecting block are respectively provided at the end where the ear plates of the two arc-shaped sleeves are in contact.

5. The novel threaded rebar connection anchor assembly according to claim 4, characterized in that: The connecting groove and the connecting block are alternately arranged on the ear plate and the arc-shaped sleeve on the same side.

6. The novel threaded rebar connection anchor assembly according to claim 5, characterized in that: The connecting block has a T-shaped structure, and the connecting groove matches the connecting block.

7. The novel threaded rebar connection anchor assembly according to claim 6, characterized in that: The angle between the connecting block and the connecting groove is an arc-shaped transition structure.

8. The novel threaded rebar connection anchor assembly according to claim 4, characterized in that: The ear plate and the arc-shaped sleeve are integrally formed.

9. The novel threaded rebar connection anchor assembly according to claim 5, characterized in that: One of the connecting grooves has a closed end, and the other connecting groove has a closed bottom end.

10. The novel threaded rebar connection anchor assembly according to claim 1, characterized in that: The inner wall of the locking plate is provided with anti-slip stripes.

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