A construction embedded bar connecting piece

By using pre-embedded rebar connectors for mechanical connection, the safety risks and high costs associated with welding connections are resolved, achieving efficient and low-cost connection between pre-embedded rebars and steel bars, thus improving construction efficiency and quality.

CN224579074UActive Publication Date: 2026-07-31CHINA CONSTR ENG TESTING (BEIJING) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR ENG TESTING (BEIJING) CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In nuclear power plant civil construction, the welding connection between embedded bars and steel bars suffers from inconsistent quality, frequent on-site hot work, high safety risks, and consequently high construction costs and low efficiency.

Method used

The pre-embedded reinforcement connector is used in building construction. The ring end is connected to the pre-embedded reinforcement or reinforcement, and the sleeve end is connected to the reinforcement or tie rod by compression or threading, so as to realize the mechanical connection between the pre-embedded reinforcement and the reinforcement and avoid welding.

Benefits of technology

It improved construction efficiency, reduced reliance on the skills of construction workers, simplified the work process, reduced construction costs, and ensured connection quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of steel reinforcement engineering technology in building structure construction, and particularly to a pre-embedded rebar connector for building construction. The utility model includes a pre-embedded rebar connector comprising: one end of a circular ring that is fitted and connected to a pre-embedded rebar or reinforcing bar; one end of a sleeve end that is connected to the other end of the circular ring, and the other end of the sleeve end that is connected to a reinforcing bar, tie bar, or through-wall bolt. The circular ring includes a ring fitted onto the pre-embedded rebar or reinforcing bar, and the ring and the sleeve end are fixedly connected by extrusion, threading, or welding. The sleeve end is fixedly connected to the through-wall bolt by threading. This utility model's pre-embedded rebar connector for building construction eliminates the need for welding, improving on-site construction efficiency. Simultaneously, the use of standardized, pre-designed products effectively simplifies the work process, reduces reliance on the skill level of construction personnel, and effectively reduces construction costs.
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Description

Technical Field

[0001] This application relates to the field of steel reinforcement engineering technology in building structure construction, and in particular to a pre-embedded steel reinforcement connector for building construction. Background Technology

[0002] Currently, in the construction of nuclear power plant civil engineering, the construction of replacement / backfill formwork and floor slab side formwork on the construction site mostly adopts the internal tie reinforcement method. Among them, the pre-embedded bars and steel bars (ties) are mostly welded together. Since it is a temporary measure, scrap steel bars are often bent to form tie rings, which are then welded to the steel bars (ties) and installed on the pre-embedded bars. The quality of the tie rings is inconsistent, there are many hot work operations on site, which poses a significant safety risk. At the same time, the cost of welding operation management is high, and there is a high dependence on welding personnel, resulting in high construction costs and low construction efficiency. Utility Model Content

[0003] This application provides a pre-embedded rebar connector for building construction, which can solve the problems of inconsistent quality of pull rings, numerous on-site hot work operations posing significant safety risks, high cost of welding operation management, high dependence on welding personnel, resulting in high construction costs and low construction efficiency.

[0004] To achieve the above and other related objectives, this utility model provides a pre-embedded rebar connector for building construction, comprising:

[0005] The circular end has one end that is fitted into and connected to the pre-embedded reinforcement or the reinforcement bar;

[0006] One end of the sleeve is connected to the other end of the annular end, and the other end of the sleeve is connected to a reinforcing bar, tie bar, or through-wall bolt.

[0007] In one embodiment of this utility model, the annular end includes an annular ring sleeved on the pre-embedded reinforcement or the reinforcement bar.

[0008] In one embodiment of this utility model, the ring and the sleeve end are fixedly connected by extrusion, threading or welding.

[0009] In one embodiment of this utility model, the sleeve end is fixed to the reinforcing bar or tie bar by extrusion connection.

[0010] In one embodiment of this utility model, a portion of the reinforcing bar or tie bar is inserted into the sleeve end from the sleeve end.

[0011] In one embodiment of this utility model, the sleeve end is fixed to the through-wall screw by a threaded connection.

[0012] In one embodiment of this utility model, the through-wall screw is screwed into the sleeve end with at least three threads.

[0013] In one embodiment of this utility model, the annular end includes:

[0014] A circular ring, one end of which is fitted and connected to the pre-embedded reinforcement or the reinforcement bar;

[0015] A connecting post, one end of which is connected to the other end of the ring, and the other end of the connecting post is fixedly connected to the sleeve end.

[0016] In one embodiment of this utility model, the other end of the connecting column is fixedly connected to the sleeve end by extrusion, threading, or welding.

[0017] In one embodiment of this utility model, the diameter of the annular end is larger than the diameter of the sleeve end.

[0018] As described above, the pre-embedded rebar connector of this utility model has the following beneficial effects:

[0019] (1) The pre-embedded bar connector for building construction of this utility model does not require welding process, which improves the efficiency of on-site construction. At the same time, the use of standardized products effectively simplifies the operation process, reduces the dependence on the skill level of construction personnel, and effectively reduces construction costs.

[0020] (2) The present invention provides a pre-embedded reinforcement connector for building construction, which uses a mechanical structure to connect pre-embedded reinforcement with steel bars (tie bars) or other reinforcements that require measures (such as connecting main reinforcement with reinforcement). Through standardized products and simple operation methods, it greatly improves the construction efficiency of formwork or reinforcement connection and fixing on the construction site.

[0021] (3) The pre-embedded bar connector of this utility model can realize the mutual connection between the formwork bar (tie bar) and the pre-embedded bar without the need for welding to achieve connection and fixation. It also realizes the standardized product for the connection between the pre-embedded bar and the bar (tie bar), which ensures product quality and effectively improves product construction efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the pre-embedded bar connector of this utility model connecting the pre-embedded bar and the bar (tie bar) installation;

[0023] Figure 2 This is a schematic diagram of the pre-embedded reinforcement connector of this utility model connecting the pre-embedded reinforcement and the through-wall bolt.

[0024] Figure 3 This is a top view of the pre-embedded bar connector of this utility model, which connects the pre-embedded bars and the reinforcing bars (ties).

[0025] Figure 4This is a top view of the pre-embedded reinforcement connector of this utility model, which connects the pre-embedded reinforcement and the through-wall bolt.

[0026] Figure 5 This is an isometric view of the pre-embedded bar connector of this utility model, which connects the pre-embedded bars and the reinforcing bars (ties).

[0027] Figure 6 This is an isometric view of the pre-embedded reinforcement connector of this utility model, which connects the pre-embedded reinforcement and the through-wall bolt.

[0028] Figure 7 This is a front view of the pre-embedded rebar connector of this utility model, which connects the reinforcing bars (ties).

[0029] Figure 8 This is a front view of the pre-embedded reinforcing bar connector of this utility model connecting the through-wall bolt;

[0030] Figure 9 This is an isometric view of the pre-embedded rebar connector of this utility model, which connects the reinforcing bars (ties).

[0031] Figure 10 This is an isometric view of the pre-embedded reinforcement connector of this utility model connecting the through-wall bolt;

[0032] Figure 11 This is a schematic diagram of the circular end of the pre-embedded rib connector of this utility model;

[0033] Figure 12 This is a schematic diagram of the sleeve end (connecting reinforcing bars) of the pre-embedded reinforcing bar connector of this utility model;

[0034] Figure 13 This is a schematic diagram of the sleeve end (connecting the through-wall bolt) of the pre-embedded reinforcement connector of this utility model.

[0035] Component designation explanation

[0036] 1-Embedded reinforcement (measure reinforcement), 2-Embedded reinforcement connector, 2.1-Ring end, 2.1A-Ring, 2.1B-Connecting column, 2.2-Sleeve end (reinforcing bar), 2.3-Sleeve end (through-wall tie rod), 2.3A-Connecting ring side, 2.3B-Connecting through-wall tie rod side, 3-Reinforcing bar (tie bar), 4-Through-wall tie rod. Detailed Implementation

[0037] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] This utility model provides a pre-embedded rebar connector for building construction, including a pre-embedded rebar connector comprising a circular end and a sleeve end. One end of the circular end is fitted and connected to the pre-embedded rebar or reinforcement bar; one end of the sleeve end is connected to the other end of the circular end, and the other end of the sleeve end is connected to the rebar, tie bar, or through-wall bolt.

[0040] Specifically, the annular end includes an annular ring sleeved on the pre-embedded reinforcing bar or the reinforcement bar. The annular ring is fixedly connected to the sleeve end by extrusion, threading or welding. The sleeve end is fixedly connected to the reinforcing bar or tie bar by extrusion. A portion of the reinforcing bar or tie bar is inserted into the sleeve end by the sleeve end.

[0041] In one embodiment of this utility model, this embodiment provides a pre-embedded rebar connector for building construction. The product includes two types of pre-embedded rebar connectors: one for connecting pre-embedded rebar to steel bars (tie bars) and the other for connecting reinforcing bars to through-wall bolts.

[0042] like Figure 1 , Figure 3 , Figure 5 As shown, Figure 1 This is a schematic diagram of the pre-embedded bar connector of this utility model connecting the pre-embedded bar and the bar (tie bar) installation; Figure 3 This is a top view of the pre-embedded bar connector of this utility model, which connects the pre-embedded bars and the reinforcing bars (ties). Figure 5 This is an isometric view of the pre-embedded reinforcing bar connector of this utility model, connecting the pre-embedded reinforcing bar and the reinforcing bar (tie bar); a schematic diagram of the installation of the pre-embedded reinforcing bar (measure reinforcing bar) 1 and the reinforcing bar (tie bar) 3, including the pre-embedded reinforcing bar (measure reinforcing bar) 1, the pre-embedded reinforcing bar connector 2, and the reinforcing bar (tie bar) 3. The circular end 2.1 of the pre-embedded reinforcing bar connector 2 is fitted into the pre-embedded reinforcing bar 1, and the other end, the sleeve end 2.2, is fixed to the reinforcing bar (tie bar) 3 by compression. It is required that the reinforcing bar (tie bar) 3 be completely inserted into the sleeve end 2.2 by using portable compression pliers to compress at least 3 indentations on the sleeve end 2.2, and each indentation should reach the maximum compression force of the compression pliers (i.e., the equipment automatically stops when fully charged).

[0043] Specifically, the sleeve end is fixed to the through-wall screw via a threaded connection, and the through-wall screw is screwed into the sleeve end with at least three threads. The diameter of the annular end is larger than the diameter of the sleeve end.

[0044] like Figure 2 , Figure 4 , Figure 6 As shown, Figure 2 This is a schematic diagram of the pre-embedded reinforcement connector of this utility model connecting the pre-embedded reinforcement and the through-wall bolt. Figure 4 This is a top view of the pre-embedded reinforcement connector of this utility model, which connects the pre-embedded reinforcement and the through-wall bolt. Figure 6 This is an isometric view of the pre-embedded reinforcing bar connector of this utility model, connecting the pre-embedded reinforcing bar and the through-wall bolt; a schematic diagram of the installation of the pre-embedded reinforcing bar (measure reinforcing bar) 1 and the through-wall bolt 4, including the pre-embedded reinforcing bar (measure reinforcing bar) 1, the pre-embedded reinforcing bar connector 2, and the through-wall bolt 3. The annular end 2.1 of the pre-embedded reinforcing bar connector 2 is fitted into the pre-embedded reinforcing bar (measure reinforcing bar) 1, and the other end, the sleeve end 2.3B, is fixed to the through-wall bolt 4 by a threaded connection. It is required that the through-wall bolt be fully screwed in from point 2.3B or have at least three threads.

[0045] like Figure 7 As shown, Figure 7 This is a front view of the pre-embedded rebar connector of this utility model, which connects to reinforcing bars (ties). The circular end includes a circular ring and a connecting column. One end of the circular ring is fitted and connected to the pre-embedded rebar or reinforcement bar. One end of the connecting column is connected to the other end of the circular ring, and the other end of the connecting column is fixedly connected to the sleeve end. The other end of the connecting column is fixedly connected to the sleeve end by extrusion, thread, or welding.

[0046] Specifically, the pre-embedded reinforcement connector 2 is composed of two parts. The circular end 2.1 consists of a circular ring 2.1A and a connecting column 2.1B. The connecting column 2.1B is fixed to the sleeve end (reinforcing bar) 2.2 or the sleeve end (through-wall bolt) 2.3 by extrusion, threading or welding, depending on the product usage requirements.

[0047] Please see Figures 1-13 The working principle of this utility model for a pre-embedded rebar connector in building construction is as follows:

[0048] Embedded reinforcement connectors are fixing devices that connect fully fixed embedded reinforcement bars or reinforcing bars to tie bars or through-wall bolts. They connect the two materials by sleeve-fitting the embedded reinforcement bars or reinforcing bars and pressing them together, or by threading them to the through-wall bolts. In the connection process between embedded reinforcement bars and tie bars, one end is fitted into the embedded reinforcement bar via a ring end, and the other end is connected to the tie bar via a sleeve. A portable pressing device is used to complete the radial deformation of the sleeve, thus fixing it to the tie bar. Similarly, in the connection process between embedded reinforcement bars and through-wall bolts, one end is connected to the embedded reinforcement bars or reinforcing bars via a ring end, and the other end is connected to the through-wall bolt via a sleeve. The connection and fixation are achieved using the threads inside the sleeve.

[0049] The production methods of pre-embedded rib connectors include, but are not limited to, connecting and fixing the stamped or forged ring end and the formed sleeve end through processes such as extrusion, threading, or welding.

[0050] In summary, this utility model provides a pre-embedded rebar connector for building construction, eliminating the need for welding and improving on-site construction efficiency. Furthermore, the standardized, modular product simplifies the work process, reduces reliance on the skill level of construction workers, and effectively lowers construction costs. This pre-embedded rebar connector utilizes a mechanical structure to connect pre-embedded rebars to steel bars (ties) or other reinforcement requiring additional reinforcement (such as connecting main reinforcement to reinforcement). The standardized product and simple operation significantly improve the efficiency of formwork or reinforcement connection and fixing on construction sites. This pre-embedded rebar connector enables the connection between formwork reinforcement (ties) and pre-embedded rebars without welding, and the standardized product for the connection between pre-embedded rebars and steel bars (ties) ensures product quality while effectively improving construction efficiency.

[0051] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of this application have been shown and described above, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A construction pre-embedded tendon connector, characterized in that, Includes embedded reinforcement connectors, wherein the embedded reinforcement connectors include: The circular end has one end that is fitted into and connected to the pre-embedded reinforcement or the reinforcement bar; One end of the sleeve is connected to the other end of the annular end, and the other end of the sleeve is connected to a reinforcing bar, tie bar, or through-wall bolt.

2. A construction pre-embedded bar connecting piece according to claim 1, characterized in that: The circular end includes a circular ring fitted onto the embedded reinforcement or the reinforcement bar.

3. A construction pre-embedded bar connecting piece according to claim 2, characterized in that: The ring and the sleeve end are fixedly connected by extrusion, threading, or welding.

4. A construction pre-embedded bar connecting piece according to claim 3, characterized in that: The sleeve end is fixed to the reinforcing bar or tie bar by extrusion connection.

5. A construction pre-embedded bar connecting piece according to claim 4, characterized in that: A portion of the reinforcing bar or tie bar is inserted into the sleeve end by the sleeve end.

6. A construction embedded bar connector according to claim 2, wherein: The sleeve end is fixed to the through-wall screw by a threaded connection.

7. A construction pre-embedded bar connecting piece according to claim 6, characterized in that: The through-wall screw is screwed into the sleeve end with at least three threads.

8. A construction embedded bar connector according to claim 1, wherein The annular end includes: A circular ring, one end of which is fitted and connected to the pre-embedded reinforcement or the reinforcement bar; A connecting post, one end of which is connected to the other end of the ring, and the other end of the connecting post is fixedly connected to the sleeve end.

9. A construction pre-embedded bar connecting piece according to claim 8, characterized in that: The other end of the connecting column is fixedly connected to the sleeve end by extrusion, threading, or welding.

10. The construction reinforcement bar coupler according to claim 1, wherein: The diameter of the annular end is larger than the diameter of the sleeve end.