Quick-connection device for reinforcing bars and method for connecting reinforcing bars

Abstract

This invention discloses a quick rebar connection device and a rebar connection method, solving the technical problem of inconvenience in use in the prior art. The quick rebar connection device is used to coaxially connect a first rebar and a second rebar, and includes: a first connecting member having a first channel for threaded connection with the first rebar; a first groove is provided at the end of the first connecting member away from the second rebar, and a first mating part is provided at the end near the second rebar; a second connecting member having a second channel for threaded connection with the second rebar; a second groove is provided at the end of the second connecting member away from the first rebar, and a second mating part is provided at the end near the first rebar; the first mating part and the second mating part are connected to form a third groove; a fixing assembly is formed by splicing at least two wrapping parts into a cylindrical body; the inner side of the cylindrical body has a first flange adapted to the first groove, a second flange adapted to the second groove, and a third flange adapted to the third groove.

Description

Technical Field

[0001] This invention relates to the technical field of rebar connection, and more specifically, to a rebar quick connection device and a rebar connection method. Background Technology

[0002] The most common method for connecting reinforcing bars is lap splicing. Lap splicing has advantages such as convenient construction and low cost. However, with the increase in the strength of reinforcing bars, the application scope of lap splicing has become more strictly limited. For concrete members subjected to axial tension and small eccentric tension, it is no longer used as a method for connecting reinforcing bars.

[0003] Chinese invention patent application CN109629767A discloses a rebar connection kit, which includes a first nut, a second nut, and a sleeve. The kit first connects the first and second nuts to two rebars via thread, and then the sleeve is fitted over the first and second nuts, thus achieving a quick connection of the two rebars without the need for binding. However, in use, because the mating surfaces of the two nuts and the sleeve are prismatic, the edges of the two nuts must be aligned before they can be connected to the sleeve. However, due to the weight of the rebars and the misalignment between them, the edges of the two nuts are difficult to align, and after alignment, manual fixing is required to prevent radial displacement of the two nuts, making the operation very inconvenient. Consequently, the sleeve cannot be quickly fitted onto the two nuts. Summary of the Invention

[0004] The main objective of this invention is to provide a quick rebar connection device and a rebar connection method to solve the technical problems of inconvenience in use in the prior art.

[0005] To achieve the above objectives, the present invention first provides a first type of quick rebar connection device, the technical solution of which is as follows:

[0006] A quick-connect device for rebars, used for coaxially connecting a first rebar and a second rebar, includes: a first connecting member having a first channel for threaded connection with the first rebar; a first groove at the end of the first connecting member away from the second rebar and a first mating part at the end near the second rebar; a second connecting member having a second channel for threaded connection with the second rebar; a second groove at the end of the second connecting member away from the first rebar and a second mating part at the end near the first rebar; the first mating part and the second mating part are interlocked; and a fixing assembly for fixing the first connecting member and the second connecting member; the fixing assembly is composed of at least two wrapping parts spliced ​​together to form a cylindrical body adapted to the outer wall of the first connecting member and the second connecting member; the inner side of the cylindrical body has a first flange adapted to the first groove and a second flange adapted to the second groove.

[0007] In use, the first type of quick rebar connection device of the present invention firstly achieves pre-fixation through the insertion and connection of the first mating part and the second mating part, facilitating the rapid installation of the fixing components. Secondly, the connection of the first mating part and the second mating part enhances the connection strength of the first and second mating parts, thereby improving the connection strength at the joint between the first and second rebars.

[0008] As a further improvement of the present invention, the first groove and the second groove are annular.

[0009] As a further improvement of the present invention, the outer walls of the first groove and the second groove are first inclined surfaces, and the inner walls of the first flange and the second flange are second inclined surfaces adapted to the first inclined surfaces.

[0010] As a further improvement of the present invention, the first mating part and the second mating part are connected to form a third groove, and the inner side of the cylindrical body has a third flange that is adapted to the third groove.

[0011] As a further improvement of the present invention, the third groove is annular.

[0012] As a further improvement of the present invention, the first mating part and the second mating part, after mating, form a first support column coaxial with the first steel bar and the second steel bar, and the first support column has a third channel adapted to the first steel bar and the second steel bar.

[0013] As a further improvement of the present invention, the outer wall of the first support column is prismatic or wavy, and the inner side of the third flange has a mating surface adapted to the outer wall of the first support column.

[0014] As a further improvement of the present invention, after the first mating part and the second mating part are mated, a second support column is formed between the first mating part and the second mating part and arranged at intervals. A gap is formed between adjacent second support columns that communicates with the third groove. The third flange has a protrusion that mates with the gap.

[0015] As a further improvement of the present invention, there are four second support columns, which are symmetrically distributed about the axes of the first and second reinforcing bars.

[0016] As a further improvement of the present invention, the fixing component is formed by splicing two semi-circular wrapping parts to form the cylindrical body.

[0017] To achieve the above objectives, the present invention further provides a second type of quick rebar connection device, the technical solution of which is as follows:

[0018] A quick-connect device for rebars, used for coaxially connecting a first rebar and a second rebar, includes: a first connecting member having a first channel for threaded connection with the first rebar; a first groove at the end of the first connecting member away from the second rebar and a first mating portion at the end closer to the second rebar; a second connecting member having a second channel for threaded connection with the second rebar; a second groove at the end of the second connecting member away from the first rebar and a second mating portion at the end closer to the first rebar; the first mating portion and the second mating portion forming a third groove after connection; and a fixing assembly for fixing the first connecting member and the second connecting member; the fixing assembly is composed of at least two wrapping parts spliced ​​together to form a cylindrical body adapted to the outer wall of the first connecting member and the second connecting member; the inner side of the cylindrical body has a first flange adapted to the first groove, a second flange adapted to the second groove, and a third flange adapted to the third groove.

[0019] In the second type of quick rebar connection device of the present invention, firstly, pre-fixation can be achieved through the insertion and connection of the first and second mating parts, facilitating the rapid installation of the fixing components. Secondly, the connection of the first and second mating parts can enhance the connection strength of the first and second connecting parts, thereby improving the connection strength at the joint between the first and second rebars. Furthermore, the cooperation between the third groove and the third flange can significantly enhance the connection strength between the connecting parts and the fixing components after installation, thereby further improving the connection strength at the rebar joint.

[0020] As a further improvement of the present invention, the first groove, the second groove and the third groove are all annular.

[0021] As a further improvement of the present invention, the outer walls of the first groove and the second groove are first inclined surfaces, and the inner walls of the first flange and the second flange are second inclined surfaces adapted to the first inclined surfaces.

[0022] As a further improvement of the present invention, the first mating part and the second mating part are inserted and connected.

[0023] As a further improvement of the present invention, the first mating part and the second mating part, after mating, form a first support column coaxial with the first steel bar and the second steel bar, and the first support column has a third channel adapted to the first steel bar and the second steel bar.

[0024] As a further improvement of the present invention, the outer wall of the first support column is prismatic or wavy, and the inner side of the third flange has a mating surface adapted to the outer wall of the first support column.

[0025] As a further improvement of the present invention, after the first mating part and the second mating part are mated, a second support column is formed between the first mating part and the second mating part and arranged at intervals. A gap is formed between adjacent second support columns that communicates with the third groove. The third flange has a protrusion that mates with the gap.

[0026] As a further improvement of the present invention, there are four second support columns, which are symmetrically distributed about the axes of the first and second reinforcing bars.

[0027] As a further improvement of the present invention, the fixing component is formed by splicing two semi-circular wrapping parts to form the cylindrical body.

[0028] To achieve the above objectives, the present invention further provides a method for connecting reinforcing bars, the technical solution of which is as follows:

[0029] For the rebar connection method, any of the above-mentioned quick rebar connection devices may be used.

[0030] As can be seen, the rebar quick connection device of the present invention has a simple structure, is easy to use, and is quick to install. It effectively solves the technical problems of inconvenience in use in the prior art, significantly improves the connection efficiency of rebars, and can significantly improve the connection strength at the rebar connection, thereby improving the strength of the concrete component to be formed. It has strong practicality.

[0031] The embodiments of the invention provided in this specification will be further described below with reference to the accompanying drawings and specific embodiments. Additional aspects and advantages of the embodiments of the invention provided in this specification will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the embodiments of the invention provided in this specification. Attached Figure Description

[0032] The accompanying drawings, which form part of the embodiments of the invention provided in this specification, are used to aid in understanding the embodiments of the invention provided in this specification. The content provided in the drawings and the related descriptions in the embodiments of the invention provided in this specification can be used to explain the embodiments of the invention provided in this specification, but do not constitute an undue limitation on the embodiments of the invention provided in this specification. In the drawings:

[0033] Figure 1 This is a structural schematic diagram of the quick-connection device for reinforcing bars according to Embodiment 1 of the present invention.

[0034] Figure 2 This is an axial sectional view of the quick-connect device for reinforcing bars according to Embodiment 1 of the present invention.

[0035] Figure 3 This is a structural schematic diagram of the quick-connection device for reinforcing bars according to Embodiment 2 of the present invention.

[0036] Figure 4 This is an axial sectional view of the quick-connection device for reinforcing bars according to Embodiment 2 of the present invention.

[0037] Figure 5 This is a schematic diagram of the structure of the wrapping component in the quick-connect device for reinforcing bars according to Embodiment 2 of the present invention.

[0038] Figure 6 This is a radial sectional view of the quick-connection device for reinforcing bars according to Embodiment 3 of the present invention.

[0039] Figure 7 This is an axial sectional view of the quick-connection device for reinforcing bars according to Embodiment 4 of the present invention.

[0040] Figure 8 This is a radial sectional view of the quick-connect device for reinforcing bars in Embodiment 4 of the present invention.

[0041] The relevant markings in the above figures are:

[0042] 110-First reinforcing bar, 120-Second reinforcing bar, 200-First connecting piece, 210-First channel, 220-First groove, 230-First mating part, 300-Second connecting piece, 310-Second channel, 320-Second groove, 330-Second mating part, 400-Wrapping piece, 410-Cylindrical body, 411-First flange, 412-Second flange, 413-Third flange, 414-Protrusion. Detailed Implementation

[0043] The embodiments of the invention provided in this specification will now be clearly and completely described in conjunction with the accompanying drawings. Those skilled in the art will be able to implement the embodiments of the invention provided in this specification based on these descriptions. Before describing the embodiments of the invention provided in this specification in conjunction with the accompanying drawings, it should be particularly noted that:

[0044] The technical solutions and features provided in the embodiments of the invention provided in this specification, including the following description, can be combined with each other without conflict.

[0045] Furthermore, the embodiments of the inventions provided in this specification mentioned below are generally only a portion of the embodiments of the inventions provided in this specification, and not all of them. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the inventions provided in this specification without creative effort should fall within the scope of protection of the embodiments of the inventions provided in this specification.

[0046] Regarding the terminology and units in the embodiments of the invention provided in this specification: The terms "comprising," "including," "having," and any variations thereof in the description, claims, and related parts of the embodiments of the invention provided in this specification are intended to cover non-exclusive inclusion. Furthermore, other relevant terms and units in the embodiments of the invention provided in this specification can be reasonably interpreted based on the relevant content of the embodiments of the invention provided in this specification.

[0047] Example 1

[0048] Figure 1 This is a structural schematic diagram of the quick-connect device for reinforcing bars in this embodiment. Figure 2 This is an axial sectional view of the quick-connection device for reinforcing bars in this embodiment.

[0049] like Figure 1-2 As shown, the quick-connect device for reinforcing bars is used to coaxially connect a first reinforcing bar 110 and a second reinforcing bar 120, and includes a first connecting member 200, a second connecting member 300, and a fixing assembly. The first connecting member 200 has a first channel 210 for threaded connection with the first reinforcing bar 110; the end of the first connecting member 200 away from the second reinforcing bar 120 is provided with a first groove 220, and the end near the second reinforcing bar 120 is provided with a first mating portion 230. The second connecting member 300 has a second channel 310 for threaded connection with the second reinforcing bar 120; the end of the second connecting member 300 away from the first reinforcing bar 110 is provided with a second groove 320, and the end near the first reinforcing bar 110 is provided with a second mating portion 330; the first mating portion 230 and the second mating portion 330 are inserted into each other. The fixing component is used to fix the first docking member 200 and the second docking member 300; the fixing component is formed by splicing at least two wrapping members 400 into a cylindrical body 410 that is adapted to the outer wall of the first docking member 200 and the second docking member 300; the inner side of the cylindrical body 410 has a first flange 411 adapted to the first groove 220 and a second flange 412 adapted to the second groove 320; the fixing component is formed by splicing two semi-circular wrapping members 400 to form the cylindrical body 410.

[0050] The first groove 220 and the second groove 320 are annular; the outer walls of the first groove 220 and the second groove 320 are first inclined surfaces, and the inner walls of the first flange 411 and the second flange 412 are second inclined surfaces adapted to the first inclined surfaces.

[0051] Example 2

[0052] Figure 3 This is a structural schematic diagram of the quick-connect device for reinforcing bars in this embodiment. Figure 4 This is an axial sectional view of the quick-connection device for reinforcing bars in this embodiment. Figure 5This is a schematic diagram of the wrapping component in the quick-connect device for reinforcing bars in this embodiment.

[0053] Based on Example 1, the quick-connect device for reinforcing bars in this example further has the following features: Figure 3-5 As shown, the first mating part 230 and the second mating part 330 are connected to form a third groove, and the inner side of the cylindrical body 410 has a third flange 413 that matches the third groove. The third groove is annular.

[0054] Both the first mating part 230 and the second mating part 330 are cylindrical. After the second mating part 330 is inserted into the first mating part 230, it forms a first support column coaxial with the first steel bar 110 and the second steel bar 120. The first support column has a third channel adapted to the first steel bar 110 and the second steel bar 120. The outside of the first support column is the third groove.

[0055] Example 3

[0056] Figure 6 This is a radial sectional view of the quick-connection device for reinforcing bars in this embodiment, that is... Figure 4 A sectional view along the AA direction.

[0057] Based on Example 2, the quick-connection device for reinforcing bars in this example further has the following features: Figure 6 As shown, the outer wall of the first support column is prismatic or wavy, and the inner side of the third flange 413 has a mating surface adapted to the outer wall of the first support column. Thus, the specially shaped outer wall of the first support column can prevent the first mating member 220 and the second mating member 300 from rotating relative to the wrapping member 400, thereby improving the connection strength between the mating member and the fixing assembly.

[0058] Example 4

[0059] Figure 7 This is an axial sectional view of the quick-connection device for reinforcing bars in this embodiment. Figure 8 This is a radial sectional view of the quick-connection device for reinforcing bars in this embodiment, that is... Figure 7 BB-direction sectional view.

[0060] Compared with Example 2, the difference between the quick-connection device for reinforcing bars in this example is: Figure 7-8As shown, the first mating part 230 includes four second support posts, and the second mating part 330 includes four slots. After the first mating part 230 is inserted into the second mating part 330, it forms second support posts located between the first mating part 230 and the second mating part 330 and arranged at intervals. A gap is formed between adjacent second support posts that communicates with the third groove. The third flange 413 has a protrusion 414 that mates with the gap. The four second support posts and the four slots are symmetrically distributed about the axes of the first steel bar 110 and the second steel bar 120. Thus, due to the engagement of the protrusion 414 with the gap, the first mating member 220 and the second mating member 300 can be prevented from rotating relative to the wrapping member 400, thereby improving the connection strength between the mating member and the fixing assembly.

[0061] An embodiment of the rebar connection method of the present invention is to use the rebar quick connection device described in any of the above embodiments.

[0062] The embodiments of the invention provided in this specification have been described above. Those skilled in the art will be able to implement the embodiments of the invention provided in this specification based on these descriptions. All other preferred embodiments and implementations obtained by those skilled in the art based on the above description of the embodiments of the invention provided in this specification without inventive effort should fall within the protection scope of the embodiments of the invention provided in this specification.

Claims

1. A quick-connect device for reinforcing bars, used for coaxially connecting a first reinforcing bar (110) and a second reinforcing bar (120), characterized in that: include: The first connecting piece (200) has a first channel (210) for threaded connection with the first reinforcing bar (110); the end of the first connecting piece (200) away from the second reinforcing bar (120) is provided with a first groove (220), and the end of the first connecting piece (200) close to the second reinforcing bar (120) is provided with a first mating part (230); The second connecting member (300) has a second channel (310) for threaded connection with the second reinforcing bar (120); the end of the second connecting member (300) away from the first reinforcing bar (110) is provided with a second groove (320), and the end near the first reinforcing bar (110) is provided with a second mating part (330); the first mating part (230) and the second mating part (330) are connected to form a third groove; A fixing assembly for fixing the first docking member (200) and the second docking member (300); the fixing assembly is composed of at least two wrapping members (400) spliced ​​together to form a cylindrical body (410) adapted to the outer wall of the first docking member (200) and the second docking member (300); the inner side of the cylindrical body (410) has a first flange (411) adapted to the first groove (220), a second flange (412) adapted to the second groove (320) and a third flange (413) adapted to the third groove; The first groove (220) and the second groove (320) are annular; The first mating part (230) and the second mating part (330) are inserted and connected; the third groove is annular; After the first mating part (230) and the second mating part (330) are mated, a first support column coaxial with the first reinforcing bar (110) and the second reinforcing bar (120) is formed. The first support column has a third channel adapted to the first reinforcing bar (110) and the second reinforcing bar (120). The outer wall of the first support column is prismatic or wavy. The inner side of the third flange (413) has a mating surface adapted to the outer wall of the first support column. Alternatively, after the first mating part (230) and the second mating part (330) are mated, a second support column is formed between the first mating part (230) and the second mating part (330) and spaced apart. A gap communicating with the third groove is formed between adjacent second support columns. The third flange (413) has a protrusion (414) that mates with the gap.

2. The quick-connection device for reinforcing bars as described in claim 1, characterized in that: The outer walls of the first groove (220) and the second groove (320) are first inclined surfaces, and the inner walls of the first flange (411) and the second flange (412) are second inclined surfaces adapted to the first inclined surfaces.

3. The quick-connect device for reinforcing bars as described in claim 1, characterized in that: The second support column consists of four columns, which are symmetrically distributed along the axes of the first steel bar (110) and the second steel bar (120).

4. The quick-connect device for reinforcing bars as described in claim 1, characterized in that: The fixing component is formed by splicing two semi-circular wrapping parts (400) to form the cylindrical body (410).

5. A method for connecting reinforcing bars, characterized in that: The quick-connection device for reinforcing bars as described in any one of claims 1-4 is used.

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