Fabricated building grouting sleeve

By designing a grouting sleeve structure with a push ring and a sealing disc, the problems of inconvenient grout filling and skewed reinforcing bars were solved, achieving compact filling, reducing waste, and facilitating operation.

CN223964083UActive Publication Date: 2026-03-03NINGXIA ZUNYING CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing grouting sleeves for prefabricated buildings are inconvenient to operate during the grout filling process, easily waste grout, and cause the reinforcing bars to become misaligned, making it impossible to accurately determine the filling status.

Method used

A grouting sleeve structure with a push ring and a sealing disc was designed. The push ring moves under the pressure of the grout to ensure the verticality of the reinforcing bars, and the sealing disc determines the filling status to reduce grout overflow.

Benefits of technology

It achieves compact grout filling, reduces waste, ensures the verticality of reinforcing bars, is easy to operate, accurately judges the filling status, and avoids grout overflow.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223964083U_ABST
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Abstract

The utility model discloses an assembly type building grouting sleeve which comprises a sleeve body, a first connecting end cover is fixed to the top of the sleeve body in a penetrating mode, a second connecting end cover is fixed to the bottom of the sleeve body in a penetrating mode, a grouting pipe is fixed to the lower portion of the right side of the sleeve body in a penetrating mode, and a grout outlet pipe is fixed to the upper portion of the right side of the sleeve body in a penetrating mode. The upper pushing ring and the lower pushing ring can extrude filled slurry, so that filling of the slurry is more compact, the pushing rings ascend and descend on the outer sides of installed steel bars, the perpendicularity of the steel bars can be kept through the pushing rings, and the grouting filling effect is more stable; whether the sleeve main body is filled with slurry or not can be accurately judged by extending the sealing column out of the outer end of the first pipe body, the situation that the slurry overflows after the sleeve main body is filled with the slurry is avoided, the situation of slurry waste is reduced, the interior of the grouting pipe can be plugged by the internal structure of the grouting pipe without manually pulling out by a worker, and use and operation are convenient and fast.
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Description

Technical Field

[0001] This utility model relates to the field of grouting sleeve technology, and more specifically, to a grouting sleeve for prefabricated buildings. Background Technology

[0002] Prefabricated construction refers to transferring a large amount of on-site work in traditional construction methods to factories, where building components and accessories are processed and manufactured, and then transported to the construction site. The steel bars of the prefabricated structure are connected to the steel bars of the prefabricated structure on site through grouting sleeves, which are also known as grouting sleeve joints or sleeve grouting joints.

[0003] In the prior art, application number 202323015244.0 discloses a prefabricated building grouting sleeve in the field of grouting sleeve technology, including a cylinder body, the inside of which is hollow, and the upper and lower ends of the cylinder body are respectively fixedly welded with a grout outlet pipe and a grout inlet pipe. The grout inlet pipe has a sliding groove and a sealing groove inside. The above device requires the operator to judge whether the grout filling is complete by relying on experience or observing the grout overflowing from the grout outlet pipe. The grouting pipe needs to be manually pulled out by the operator to seal the inside of the grouting pipe with its internal structure. It is inconvenient to use and operate. In addition, the grout will be squeezed out through the upper and lower ends of the sleeve, resulting in a lot of grout waste. The steel bars inside the sleeve are prone to skewing due to the filling of grout.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a prefabricated building grouting sleeve to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A prefabricated building grouting sleeve includes a sleeve body, a first connecting end cap fixed through the top of the sleeve body, a second connecting end cap fixed through the bottom of the sleeve body, a grouting pipe fixed through the lower right side of the sleeve body, and a grout outlet pipe fixed through the upper right side of the sleeve body.

[0008] Preferably, the first connecting end cap and the second connecting end cap are mirror images of each other, and both the first connecting end cap and the second connecting end cap include a fixed tube and a movable tube, with the movable tube being movably sleeved inside the fixed tube.

[0009] Preferably, a push ring is fitted and fixed inside the movable tube, and a sealing gasket ring is embedded and fixed on the bottom side of the push ring, with the bottom side of the sealing gasket ring flush with the bottom side of the push ring.

[0010] Preferably, the slurry outlet pipe includes a first pipe body and a sealing column. The sealing column is movably disposed inside the first pipe body. A first annular groove is excavated on the left side of the inner wall of the first pipe body. The diameter of the first annular groove is larger than the diameter of the right end of the first pipe body.

[0011] Preferably, the left end of the sealing column is fixedly connected to a first sealing disc, the outer wall of the first sealing disc is slidably connected to the inner wall of the first annular groove, and the right end of the sealing column extends out of the right end of the first tube body.

[0012] Preferably, the grouting pipe includes a second pipe body and a connecting pipe, the connecting pipe being movably disposed inside the second pipe body, and a second annular groove being excavated on the left side of the inner wall of the second pipe body, the diameter of the second annular groove being larger than the diameter of the right end of the second pipe body.

[0013] Preferably, a second sealing disc is sleeved and fixed at the left end of the connecting pipe, the outer side of the second sealing disc is slidably connected to the inner wall of the second annular groove, and a hollow cone is fixed through the left end of the connecting pipe, the hollow cone extending movably into the interior of the sleeve body.

[0014] The beneficial effects of this utility model are as follows: the upper and lower push rings can squeeze the filling grout, making the grout filling more compact. Furthermore, the push rings can move up and down on the outside of the installed steel bars, which can maintain the verticality of the steel bars, making the grouting filling effect more stable. The sealing column can be extended from the outer end of the first pipe body to accurately determine whether the grout inside the sleeve body is full, avoiding the situation of grout overflow after full filling and reducing grout waste. It does not require manual removal by the staff to seal the inside of the grouting pipe, making it convenient to use and operate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a prefabricated building grouting sleeve according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the first connecting end cap of a prefabricated building grouting sleeve according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the grout outlet pipe of a prefabricated building grouting sleeve according to an embodiment of the present utility model.

[0019] Figure 4 This is a schematic cross-sectional view of the grouting pipe structure of a prefabricated building grouting sleeve according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Sleeve body; 2. First connecting end cap; 3. Second connecting end cap; 4. Grouting pipe; 5. Grout outlet pipe; 6. Fixed pipe; 7. Movable pipe; 8. Pushing ring; 9. Sealing gasket ring; 10. First pipe body; 11. Sealing column; 12. First annular groove; 13. First sealing disc; 14. Second pipe body; 15. Connecting pipe; 16. Second annular groove; 17. Second sealing disc; 18. Hollow cone head. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a prefabricated building grouting sleeve is provided. Example

[0024] like Figure 1-4As shown, a prefabricated building grouting sleeve according to an embodiment of the present invention includes a sleeve body 1, a first connecting end cap 2 fixedly through the top of the sleeve body 1, a second connecting end cap 3 fixedly through the bottom of the sleeve body 1, a grouting pipe 4 fixedly through the lower right side of the sleeve body 1, and a grout outlet pipe 5 fixedly through the upper right side of the sleeve body 1. The first connecting end cap 2 and the second connecting end cap 3 are mirror images of each other. Both the first connecting end cap 2 and the second connecting end cap 3 include a fixed pipe 6 and a movable pipe 7. The movable pipe 7 is movably sleeved inside the fixed pipe 6. A pushing ring 8 is fixedly sleeved inside the movable pipe 7. A sealing gasket 9 is embedded and fixedly installed on the bottom side of the pushing ring 8. The bottom side of the sealing gasket 9 is flush with the bottom side of the pushing ring 8. Two steel bars are respectively installed on the first connecting end cap 2 and the second connecting end cap 3. The second connecting end cap 3 is inserted into the sleeve body 1 to await grouting. Grouting is then performed into the sleeve body 1 through the grouting pipe 4. The grout pushes the second connecting end cap 3, causing the pushing ring 8 to be pressed down by the grout, which in turn drives the movable pipe 7 into the fixed pipe 6. Similarly, after grouting, the pushing ring 8 of the first connecting end cap 2 is pushed up by the grout, causing the movable pipe 7 of the first connecting end cap 2 to extend into the fixed pipe 6. The pushing ring 8 abuts against the inner wall of the top port of the sleeve body 1. Under the reaction force, the upper and lower pushing rings 8 can squeeze the filled grout, making the grout filling more compact. Furthermore, the pushing ring 8 moves up and down on the outside of the installed reinforcing bar, which can maintain the verticality of the reinforcing bar, making the grouting filling effect more stable. Example

[0025] like Figure 1-4 As shown, a prefabricated building grouting sleeve according to an embodiment of the present invention includes a sleeve body 1, a first connecting end cap 2 fixedly through the top of the sleeve body 1, a second connecting end cap 3 fixedly through the bottom of the sleeve body 1, a grouting pipe 4 fixedly through the lower right side of the sleeve body 1, and a grout outlet pipe 5 fixedly through the upper right side of the sleeve body 1. The grout outlet pipe 5 includes a first pipe body 10 and a sealing column 11. The sealing column 11 is movably disposed inside the first pipe body 10. A first annular groove 12 is excavated on the left side of the inner wall of the first pipe body 10. The diameter of the first annular groove 12 is larger than the diameter of the right end of the first pipe body 10. The left end of the sealing column 11 is fixedly connected to the first sealing disc 13. The outer wall of the first sealing disc 13 is slidably connected to the inner wall of the first annular groove 12. The right end of the sealing column 11 extends out of the right end of the first tube body 10. After the sleeve body 1 is filled with slurry, the slurry will push the first sealing disc 13 at the left end of the sealing column 11, so that the first sealing disc 13 abuts against the right side of the inner wall of the first annular groove 12. The sealing column 11 can be extended out of the outer end of the first tube body 10 to accurately determine whether the slurry inside the sleeve body 1 is filled, avoiding the situation of slurry overflow after being filled with slurry and reducing the situation of slurry waste. Example

[0026] like Figure 1-4 As shown, a prefabricated building grouting sleeve according to an embodiment of the present utility model includes a sleeve body 1, a first connecting end cap 2 fixedly through the top of the sleeve body 1, a second connecting end cap 3 fixedly through the bottom of the sleeve body 1, a grouting pipe 4 fixedly through the lower right side of the sleeve body 1, and a grout outlet pipe 5 fixedly through the upper right side of the sleeve body 1. The grouting pipe 4 includes a second pipe body 14 and a connecting pipe 15. The connecting pipe 15 is movably disposed inside the second pipe body 14. A second annular groove 16 is excavated on the left side of the inner wall of the second pipe body 14. The diameter of the second annular groove is larger than the diameter of the right end of the second pipe body 14. A second sealing disc 17 is sleeved and fixedly fitted on the left end of the connecting pipe 15. The outer side of the second sealing disc 17 is slidably connected to the inner wall of the second annular groove 16. A hollow cone 18 is fixed through the left end of the connecting pipe 15. The hollow cone 18 extends into the sleeve body 1. The connecting pipe 15 is connected and fixed to the input end of the grouting equipment. Pushing the connecting pipe 15 allows the hollow cone 18 to extend into the sleeve body 1 for grouting. After the grout inside the sleeve body 1 is slowly filled, the grout will push the second sealing disc 17 to abut and fix it to the right side of the inner wall of the second annular groove 16. The hollow cone 18 can reduce the backflow of the injected grout. It does not require manual removal by the operator to seal the inside of the grouting pipe 4. It is convenient to use and operate.

[0027] In summary, with the help of the above-mentioned technical solution of this utility model, when this device is in use, two steel bars are respectively installed inside the first connecting end cap 2 and the second connecting end cap 3, and extended into the sleeve body 1 to await grouting operation. Grouting is then performed into the sleeve body 1 through the grouting pipe 4. The grout pushes the second connecting end cap 3, causing the pushing ring 8 to be pressed down by the grout, which drives the movable pipe 7 to extend into the fixed pipe 6. Similarly, after grouting, the pushing ring 8 of the first connecting end cap 2 is pushed up by the grout, causing the movable pipe 7 of the first connecting end cap 2 to extend into the fixed pipe 6, and the pushing ring 8 abuts against the inner wall of the top port of the sleeve body 1. Under the reaction force, the upper and lower pushing rings 8 can press against the filled grout. The compression makes the slurry filling more compact. After the sleeve body 1 is filled with slurry, the slurry will be pushed to the first sealing disc 13 at the left end of the sealing column 11, so that the first sealing disc 13 abuts against the right side of the inner wall of the first annular groove 12. The sealing column 11 can be extended out of the outer end of the first tube 10 to accurately determine whether the slurry inside the sleeve body 1 is filled. The connecting pipe 15 is connected and fixed to the input end of the grouting equipment. Pushing the connecting pipe 15 makes the hollow cone 18 extend into the sleeve body 1 for grouting operation. After the slurry inside the sleeve body 1 is filled slowly, the slurry will be pushed to the second sealing disc 17 to abut against and fix to the right side of the inner wall of the second annular groove 16. The hollow cone 18 can reduce the backflow of the injected slurry.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fabricated building grouting sleeve comprising a sleeve body (1), characterized in that, The sleeve body (1) top fixed with first connecting end cover (2), the sleeve body (1) bottom fixed with second connecting end cover (3), the sleeve body (1) right below fixed with grouting pipe (4), the sleeve body (1) right above fixed with out of the paste pipe (5), the first connecting end cover (2) and second connecting end cover (3) are mirror image, the first connecting end cover (2) and second connecting end cover (3) all include fixed pipe (6), movable tube (7), the movable tube (7) is movably sleeved in fixed pipe (6), the movable tube (7) inner end is sleeved with push ring (8), the push ring (8) bottom side is embedded with fixed sealing gasket ring (9), the sealing gasket ring (9) bottom side and push ring (8) bottom side flush.

2. A fabricated building grout sleeve according to claim 1, wherein, The out of the paste pipe (5) includes first pipe body (10), sealing column (11), the sealing column (11) is movably arranged in the first pipe body (10), the first pipe body (10) inner wall left side is excavated with first annular groove (12), the first annular groove (12) aperture is greater than the aperture of the right end of first pipe body (10).

3. A fabricated construction grout sleeve according to claim 2, wherein, The sealing column (11) left end is fixedly connected with first sealing disc (13), the first sealing disc (13) outer wall and first annular groove (12) inner wall slidingly connected, the sealing column (11) right end stretches out the right end of first pipe body (10).

4. A fabricated building grout sleeve according to claim 3, wherein, The grouting pipe (4) includes second pipe body (14), connecting pipe (15), the connecting pipe (15) is movably arranged in the second pipe body (14), the second pipe body (14) inner wall left side is excavated with second annular groove (16), the second annular groove aperture is greater than the aperture of the right end of second pipe body (14).

5. A fabricated construction grout sleeve according to claim 4, wherein, The connecting pipe (15) left end is sleeved with second sealing disc (17), the second sealing disc (17) outer side and second annular groove (16) inner wall slidingly connected, the connecting pipe (15) left end is fixed with hollow cone head (18), the hollow cone head (18) is movably inserted into the sleeve body (1) inside.

Citation Information

Patent Citations

  • An assembled building grouting sleeve

    CN220978575U