Fabricated grouting sleeve structure for building

By combining the sleeve body, sealing kit, and connecting components, and using magnetic attraction and threaded fixing, the problems of complex assembly and low applicability of existing grouting sleeves are solved. This enables flexible switching between fully grouting and semi-grouting rebar connections, improving assembly efficiency and fixation.

CN223974801UActive Publication Date: 2026-03-06济南一建集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing grouting sleeves suffer from complex assembly and can only achieve one connection method, resulting in low assembly efficiency and limited applicability.

Method used

The system employs a combined structure of sleeve body, sealing kit and connecting components, utilizing magnetic attraction and threaded fixing to achieve fully grouted and semi-grouted rebar connections. By reducing the number of assembly parts and simplifying the operation process, it improves connection efficiency and applicability.

Benefits of technology

It enables flexible switching between fully grouted and semi-grouted rebar connections, simplifies the assembly process, improves assembly efficiency and fixation, and enhances the applicability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of engineering construction, in particular to an assembly type grouting sleeve structure for a building. In the application, the grouting sleeve structure comprises a sleeve main body, a plugging sleeve piece and a connecting assembly; connecting ports are formed in the two ends of a sleeve body of a hollow columnar structure, and a slurry inlet pipe and a slurry outlet pipe which are provided with sealing plugs are arranged on the outer side of the sleeve body. The plugging suite is of a structure combining a lantern ring with a magnetic suction ring, a first through hole is formed in the plugging suite, and the magnetic suction ring is magnetically attached to the inner side of the connecting port in a matched mode; one end of the connecting assembly of the hollow columnar structure is provided with a sealing magnetic column which is magnetically attached to the inner side of the connecting port, and the other end of the connecting assembly is provided with a second through hole communicated with the interior of the connecting assembly; the first through holes and the second through holes are attached to the outer portions of the columnar steel bars in a matched mode. Based on the device, semi-grouting type and full-grouting type sleeve type steel bar connection can be simply and quickly realized, and the applicability is improved while the operation efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, and in particular to a prefabricated grouting sleeve structure for building. Background Technology

[0002] Grouting sleeves are one of the commonly used steel bar connection methods in prefabricated buildings in my country. Grouting sleeves generally include two types: semi-grouting sleeves and fully grouting sleeves. The grouting material for grouting sleeves is generally made by mixing cement with fine aggregate and admixtures. The hardened grouting material fixes the steel bar and the grouting sleeve together to achieve a solidified connection between different steel bars.

[0003] However, existing grouting sleeves have problems with complex assembly processes during use. In addition, existing grouting sleeves can usually only achieve one of the two types of connections: "half-grouting sleeve connection" and "full-grouting sleeve connection". Consequently, existing grouting sleeves have technical problems such as low assembly efficiency and limited applicability.

[0004] In summary, there is an urgent need for a prefabricated grouting sleeve structure for building applications. Utility Model Content

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a prefabricated grouting sleeve structure for building construction, which solves the technical problem of "how to easily and quickly realize semi-grouting and fully grouting sleeve-type steel bar connection in order to improve the assembly operation efficiency and applicability of the device" in the use of existing prefabricated grouting sleeves for building construction.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] This utility model provides a prefabricated grouting sleeve structure for building construction. Specifically, the grouting sleeve structure includes a sleeve body, a sealing kit, and a connecting component.

[0008] The hollow cylindrical sleeve body has connection ports at both ends, and a slurry inlet pipe and a slurry outlet pipe with sealing plugs are set on the outside of the sleeve body;

[0009] The sealing kit has a structure of a collar combined with a magnetic ring. The sealing kit has a first through hole, and the magnetic ring magnetically attaches to the inside of the connection port.

[0010] The hollow columnar connecting component has a magnetically attached sealing magnetic column at one end that fits into the inside of the connecting port, and a second through hole at the other end that connects to the inside of the connecting component.

[0011] Both the first and second through holes are fitted to the outside of the columnar reinforcing bars.

[0012] Optionally, the slurry inlet pipe and the slurry outlet pipe are connected inside the sleeve body, and the slurry inlet pipe and the slurry outlet pipe are respectively located at the left and right ends of the sleeve body;

[0013] The line connecting the slurry inlet pipe and the slurry outlet pipe is parallel to the cylindrical central axis of the sleeve body.

[0014] Optionally, the first through hole vertically penetrates the connection structure of the collar and the magnetic ring.

[0015] Optionally, the inside of the connection port is made of iron;

[0016] Multiple magnetic attraction points are provided on the outer side of the magnetic ring and the sealing magnetic column.

[0017] Optionally, the internal space of the connecting component fits snugly against the outside of the columnar reinforcing bar.

[0018] Optionally, the grouting sleeve structure further includes: a fixing hoop with a threaded fixing through hole, and a screw-nut assembly adapted to the threaded fixing through hole;

[0019] The fixing hoop is used to assemble and fix the grouting sleeve structure in conjunction with the screw-nut assembly.

[0020] The beneficial effects of this application are as follows:

[0021] This device can achieve a fully grouted sleeve-type rebar connection based on the sleeve body and the sealing kit, and a semi-grouted sleeve-type rebar connection based on the sleeve body, the sealing kit, and the connecting components. Thus, different sleeve-type rebar connections can be adopted according to specific working conditions, which improves the applicability of the device compared to the existing device.

[0022] Furthermore, the structure is initially fixed by the magnetic attraction between the "magnetic ring of the sealing kit" and the "sealing magnetic column of the connecting component" and the connecting port, and then the structure is further fixed by the fixing clamp and screw-nut assembly. Therefore, on the one hand, by reducing the number of "components to be assembled", the assembly process is made simple and quick. On the other hand, this application uses the method of "magnetic attraction combined with secondary fixing" to fix the structure, which improves the assembly efficiency and speed of the device while ensuring the degree of assembly fixation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the fixed installation of a prefabricated grouting sleeve structure for building, provided in one embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of the sleeve provided in one embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the sealing kit structure provided in one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the fixed installation section of a prefabricated grouting sleeve structure for building provided in one embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of a connection component structure provided in one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the fixing hoop and screw-nut assembly structure provided in one embodiment of the present invention;

[0029] Figure 7 A schematic diagram illustrating the structural connection between the sleeve body and the sealing kit according to one embodiment of this utility model;

[0030] Figure 8 This is a schematic diagram of the fixed installation of a prefabricated grouting sleeve structure for building, provided in one embodiment of the present utility model;

[0031] Figure 9 This is a schematic diagram of the fixed installation section of a prefabricated grouting sleeve structure for building provided in one embodiment of the present utility model;

[0032] Figure 10 A schematic diagram illustrating the structural connection between the sleeve body, the sealing kit, and the connecting assembly provided in one embodiment of this utility model;

[0033] Figures 1 to 10 The component numbers correspond as follows:

[0034] Sleeve body 1, connecting port 1-1, sealing plug 1-2, grout inlet pipe 1-3, grout outlet pipe 1-4, sealing kit 2, collar 2-1, magnetic ring 2-2, first through hole 2-3, connecting assembly 3, sealing magnetic column 3-1, second through hole 3-2, columnar steel bar 4, magnetic attraction point 5, fixing hoop 6, threaded fixing through hole 6-1, fixing screw 7-1, nut 7-2. Detailed Implementation

[0035] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0037] Example 1

[0038] This embodiment proposes a prefabricated grouting sleeve structure for building applications, specifically, as follows: Figure 1 As shown, the grouting sleeve structure includes a sleeve body 1, a sealing kit 2, and a connecting assembly 3.

[0039] In this embodiment, as Figure 2 As shown, the hollow cylindrical sleeve body 1 has connection ports 1-1 at both ends, and slurry inlet pipe 1-3 and slurry outlet pipe 1-4 with sealing plugs 1-2 are set on the outside of the sleeve body 1.

[0040] In this embodiment, as Figure 2 As shown, the slurry inlet pipe 1-3 and the slurry outlet pipe 1-4 are connected inside the sleeve body 1. The slurry inlet pipe 1-3 and the slurry outlet pipe 1-4 are respectively located at the left and right ends of the sleeve body 1. The line connecting the slurry inlet pipe 1-3 and the slurry outlet pipe 1-4 is parallel to the cylindrical central axis of the sleeve body 1.

[0041] In this embodiment, combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 The sealing kit 2 is a structure of collar 2-1 combined with magnetic ring 2-2. The sealing kit 2 is provided with a first through hole 2-3, specifically: the first through hole 2-3 vertically penetrates the connection structure of collar 2-1 and magnetic ring 2-2; the magnetic ring 2-2 magnetically attaches to the inside of the connection port 1-1.

[0042] In this embodiment, combined with Figure 1 , Figure 2 , Figure 4 and Figure 5 The hollow columnar connecting component 3 has a magnetically attached sealing magnetic column 3-1 at one end that fits into the inside of the connecting port 1-1, and a second through hole 3-2 at the other end that connects to the inside of the connecting component 3.

[0043] In this embodiment, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The first through hole 2-3 and the second through hole 3-2 are both fitted to the outside of the columnar steel bar 4, and the internal space of the connecting component 3 is fitted to the outside of the columnar steel bar 4.

[0044] In this embodiment, it should be noted that the inner side of connection port 1-1 is made of iron; combined with Figure 3 and Figure 5 Multiple magnetic attraction points 5 are provided on the outer side of the magnetic ring 2-2 and the sealing magnetic column 3-1.

[0045] In this embodiment, as Figure 6As shown, the grouting sleeve structure further includes: a fixing hoop 6 with a threaded fixing through hole 6-1, and a screw-nut assembly adapted to the threaded fixing through hole 6-1; the screw-nut assembly includes a fixing screw 7-1 and a nut 7-2; the fixing hoop 6 is used to assemble and fix the grouting sleeve structure in conjunction with the screw-nut assembly.

[0046] For the prefabricated grouting sleeve structure for building described in the aforementioned embodiment 1, a fully grouting sleeve-type rebar connection can be achieved based on the sleeve body and the sealing kit, and a semi-grouting sleeve-type rebar connection can be achieved based on the sleeve body, the sealing kit, and the connecting components. Thus, different sleeve-type rebar connections can be adopted according to specific working conditions, which improves the applicability of the device compared to the existing device.

[0047] Regarding the prefabricated grouting sleeve structure for construction described in Embodiment 1 above, the structure is initially fixed based on the magnetic attraction between the "magnetic ring of the sealing kit" and the "sealing magnetic column of the connecting component" and the connecting port. The structure is then fixed a second time by fixing the hoop and screw-nut assembly. Therefore, on the one hand, by reducing the number of "components to be assembled", the assembly process is made simple and quick. On the other hand, this application uses the method of "magnetic attraction combined with secondary fixing" to fix and connect the structure, which improves the assembly efficiency and speed of the device while ensuring the degree of assembly fixation.

[0048] Example 2

[0049] This embodiment proposes a method for using the prefabricated grouting sleeve structure for construction as described in Embodiment 1 above. Specifically, when a "fully grouting sleeve-type rebar connection" is required, the two sealing kits 2 are magnetically attached to the sleeve body 1, resulting in the following structure: Figure 7 As shown; this causes two different columnar reinforcing bars 4 to penetrate the first through hole 2-3 of the corresponding sealing kit 2 to a preset depth. The fixing hoop 6, together with the screw-nut assembly, assembles and fixes the grouting sleeve structure, and removes the sealing plugs 1-2 corresponding to the grout inlet pipe 1-3 and the grout outlet pipe 1-4. The resulting structure is as follows. Figure 8 and Figure 9 As shown; grout is injected into the space enclosed by the sleeve body 1 and the sealing kit 2 through the grout inlet pipe 1-3 until the grout overflows from the outlet pipe 1-4; the grout inlet pipe 1-3 and the outlet pipe 1-4 are sealed and blocked again through the sealing plug 1-2; after the grout hardens and becomes solid, the two different columnar steel bars 4 are connected and fixed.

[0050] When a "semi-grouting sleeve-type rebar connection" is required, a sealing kit 2 is magnetically attached to one end of the sleeve body 1, and a connecting component 3 is magnetically attached to the other end of the sleeve body 1, resulting in the following structure. Figure 10As shown; this causes one columnar reinforcing bar 4 to penetrate the first through hole 2-3 to a preset depth, and causes another columnar reinforcing bar 4 to be inserted into the second through hole 3-2 until the end of the columnar reinforcing bar 4 is threaded and locked to the bottom of the second through hole 3-2. The fixing hoop 6, together with the screw-nut assembly, assembles and fixes the grouting sleeve structure, and removes the sealing plugs 1-2 corresponding to the grout inlet pipe 1-3 and the grout outlet pipe 1-4. The resulting structure is as follows. Figure 1 and Figure 4 As shown; grout is injected into the space enclosed by the sleeve body 1, the sealing kit 2, and the connecting component 3 through the grout inlet pipe 1-3 until the grout overflows from the outlet pipe 1-4; the grout inlet pipe 1-3 and the outlet pipe 1-4 are sealed and plugged again through the sealing plug 1-2; after the grout hardens and becomes solid, the two different columnar steel bars 4 are connected and fixed.

[0051] It should be noted that any reference numerals placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The words "a" or "an" preceding a component do not exclude the presence of a plurality of such components. The use of the terms first, second, third, etc., is for convenience only and does not indicate any order. These terms can be understood as part of the component names.

[0052] Furthermore, it should be noted that in the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning of the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the claims should be interpreted to include both the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0054] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, then this utility model should also include these modifications and variations.

Claims

1. A building fabricated grouting sleeve structure, characterized by, The grouting sleeve structure comprises a sleeve body, a plugging set, and a connecting assembly; The sleeve body of the hollow columnar structure is provided with connecting ports at both ends, and the grout inlet pipe and the grout outlet pipe provided with the plugging plugs are arranged outside the sleeve body; The plugging set is in the structure of a sleeve ring combined with a magnetic attraction ring, the plugging set is provided with a first through hole, and the magnetic attraction ring is magnetically attracted and matched to the inside of the connecting port; The connecting assembly of the hollow columnar structure is provided, at one end, with a sealing magnetic attraction column magnetically attracted and matched to the inside of the connecting port, and, at the other end, with a second through hole communicated with the inside of the connecting assembly; The first through hole and the second through hole are matched to the outside of the columnar steel bar.

2. The grouting sleeve structure according to claim 1, wherein The grout inlet pipe and the grout outlet pipe are communicated with the inside of the sleeve body, and the grout inlet pipe and the grout outlet pipe are arranged at the left and right ends of the sleeve body respectively; The connecting line of the grout inlet pipe and the grout outlet pipe is parallel to the central axis of the columnar structure of the sleeve body.

3. A grout sleeve structure according to claim 1, characterised in that The first through hole vertically penetrates the connecting structure of the sleeve ring and the magnetic attraction ring.

4. The grouting sleeve structure according to claim 1, wherein The inside of the connecting port is made of iron; The magnetic attraction ring and the sealing magnetic attraction column are provided with a plurality of magnetic attraction points on the outside.

5. The grout sleeve structure of claim 1, wherein, The inside space of the connecting assembly is matched to the outside of the columnar steel bar.

6. The grouting sleeve structure according to claim 1, wherein The grouting sleeve structure further comprises a fixing clamp provided with a threaded fixing through hole and a screw-nut assembly matched to the threaded fixing through hole; The fixing clamp is used to assemble, connect and fix the grouting sleeve structure in combination with the screw-nut assembly.