Assembled sleeve grouting device

By introducing an external threaded pipe and a partition structure into the sleeve grouting device, combined with a limiting and tightening device, the device can be assembled separately and its depth can be adjusted, thus solving the hole problem of the grouting device and improving the uniformity and adaptability of grouting.

CN224149009UActive Publication Date: 2026-04-21SHANDONG LAIYUAN MACHINING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LAIYUAN MACHINING CO LTD
Filing Date
2025-02-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing prefabricated sleeve grouting devices are prone to producing holes during the grouting process, resulting in poor grouting uniformity and difficulty in separate assembly and positioning and staged grouting.

Method used

The external threaded pipe and partition are slidably installed inside the sleeve body. Combined with the structure of limit nut, sealing ring, installation cylinder and tightening spring block, it realizes the separate combination installation and depth adjustment, reduces air interference and ensures grouting uniformity.

Benefits of technology

By using modular assembly and depth adjustment, it reduces the generation of voids, improves grouting uniformity, has high adaptability and good stability, and is suitable for efficient grouting of prefabricated buildings.

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Abstract

The utility model discloses an assembly type sleeve grouting device which comprises a sleeve body, a fixing plate is fixedly connected to the side face of one end of the sleeve body, a fixing hole is formed in the surface of the fixing plate, a sliding hole is formed in the center of the surface of one end of the sleeve body, and an outer threaded pipe is installed in the sliding hole in a sliding mode. A grouting cavity is formed in the outer threaded pipe, one end of the outer threaded pipe is fixedly connected with a partition plate, the partition plate is installed at one end of the interior of the sleeve body in a sliding mode, and a combined cylinder is installed at the other end of the outer threaded pipe in a threaded mode and located at the upper end of the sleeve body. A limiting nut is installed on the surface of one end of the outer threaded pipe in a threaded mode and located in the sleeve body, an annular groove is formed in the outer circle surface of the partition plate, slow lifting adjustment is conducted according to the grouting depth, internal air is reduced, holes can be avoided, and the grouting device is uniform, efficient, beneficial to installation and use and high in adaptability.
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Description

Technical Field

[0001] This utility model relates to the field of building construction, and more specifically, to a prefabricated sleeve grouting device. Background Technology

[0002] Buildings constructed from prefabricated components have seen steady development thanks to public attention and government support. The construction process for prefabricated buildings typically involves casting individual components in a factory, transporting them to the site, and then assembling them, enabling rapid construction. In the related technologies of prefabricated reinforced concrete structure engineering, grouting sleeve connection is a common and universal connection method.

[0003] Application CN118756899A relates to a prefabricated building sleeve grouting device. The device includes a grouting sleeve with a grouting pipe and a grout discharge pipe connected to each other on both sides of the sleeve's interior. The grouting pipe has a feeding assembly at its end, which includes a connecting sleeve threaded onto the end of the grouting pipe. The connecting sleeve also has a connected mounting frame at its end. This invention, through the feeding assembly, allows for the control of a sealing plate to move into the mounting frame for sealing after grouting. This sealing method avoids the time difference between removing the grouting pipe for sealing, which could cause grout to flow back and create air bubbles in the grouting sleeve, thus improving the subsequent grouting effect.

[0004] In the above-disclosed structure, grouting is performed by installing pipes on the side of the sleeve. However, the grout tends to solidify on the side and cannot be separated and removed. Furthermore, the structure lacks a separate partition and external threaded pipe structure, making it impossible to assemble and position the parts separately. This also hinders staged grouting, easily trapping a lot of air and causing voids. The grouting uniformity is also poor, and improvements are needed. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a prefabricated sleeve grouting device. By slidingly installing an external threaded pipe and a partition inside the sleeve body, it can be assembled separately for alignment grouting. The depth of alignment can be adjusted by sliding, and the device can be slowly raised and adjusted according to the grouting depth to reduce internal air, avoid the formation of holes, and achieve uniform and efficient grouting. It is easy to install and use and has high adaptability.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A prefabricated sleeve grouting device includes a sleeve body. A fixing plate is fixedly connected to one side of the sleeve body. The surface of the fixing plate is provided with a fixing hole. A sliding hole is provided at the center of one end surface of the sleeve body. An external threaded tube is slidably installed inside the sliding hole. A grouting cavity is provided inside the external threaded tube. A partition is fixedly connected to one end of the external threaded tube. The partition is slidably installed inside one end of the sleeve body. A combined cylinder is threadedly installed at the other end of the external threaded tube. The combined cylinder is located at the upper end of the sleeve body. A limit nut is threadedly installed on one end surface of the external threaded tube. The limit nut is located inside the sleeve body. An annular groove is provided on the outer circular surface of the partition. A sealing ring is fixedly connected inside the annular groove. The sealing ring is slidably connected to the inner wall surface of the sleeve body.

[0008] Furthermore, the upper end of the sleeve body is provided with combined threaded holes on both sides, and an installation cylinder is assembled inside the combined threaded holes.

[0009] Furthermore, one end of the mounting cylinder is provided with a threaded head, which is threadedly installed inside the combined threaded hole.

[0010] Furthermore, the mounting cylinder is located on both sides of the external threaded pipe and below the combined cylinder. It is connected to the mounting cylinder through the combined threaded hole, which enables threaded installation and positioning, facilitates separate assembly, and has high adaptability.

[0011] Furthermore, a clamping spring is fixedly connected inside the mounting cylinder, and the clamping spring is located on both sides inside the sleeve body.

[0012] Furthermore, one end of the clamping spring is fixedly connected to a clamping block, which is clamped to both sides of the upper surface of the partition.

[0013] Furthermore, the clamping block and the partition are separate structures. The clamping block is located on both sides of the external threaded tube. The clamping spring and the clamping block are connected by the mounting sleeve, which can assist in clamping the partition, press and adjust the depth, and compress and lift the height without interference. It is convenient, stable, and easy to use in combination.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution allows for the separate assembly and alignment of the external threaded pipe and partition plate by sliding the sleeve body. The depth of alignment can be adjusted by sliding and slowly raised according to the grouting depth to reduce internal air, avoid the formation of holes, and achieve uniform and efficient installation. It is also highly adaptable.

[0016] (2) The mounting cylinder is connected by a combination of threaded holes, which can be threaded for positioning, facilitates separate assembly, and has high adaptability.

[0017] (3) By connecting the top spring and the top block through the mounting cylinder, the top plate can be tightened, the depth can be adjusted, and the height can be compressed without interference. It is convenient, stable, and easy to use in combination. Attached Figure Description

[0018] Figure 1 This is a three-dimensional external view of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the planar structure of this utility model;

[0020] Figure 3 This is a structural diagram of the connection between the externally threaded pipe and the partition plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the partition of this utility model;

[0022] Figure 5 This is a structural diagram showing the connection between the mounting cylinder and the tightening spring of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Sleeve body, 11. Fixing plate, 12. Fixing hole, 13. Sliding hole, 14. External threaded pipe, 15. Grouting cavity, 16. Partition plate, 17. Combined cylinder, 18. Limiting nut, 2. Annular groove, 21. Sealing ring, 22. Combined threaded hole, 23. Mounting cylinder, 24. Tightening spring, 25. Tightening block, 26. Threaded head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4A prefabricated sleeve grouting device includes a sleeve body 1. A fixing plate 11 is fixedly connected to one side of the sleeve body 1. The surface of the fixing plate 11 is provided with fixing holes 12. A sliding hole 13 is provided at the center of one end surface of the sleeve body 1. An externally threaded pipe 14 is slidably installed inside the sliding hole 13. A grouting cavity 15 is provided inside the externally threaded pipe 14. A partition plate 16 is fixedly connected to one end of the externally threaded pipe 14. The partition plate 16 is slidably installed inside one end of the sleeve body 1. A combined cylinder 17 is threadedly installed at the other end of the externally threaded pipe 14. The combined cylinder 17 is located at the upper end of the sleeve body 1. A limit nut 18 is threadedly installed on the surface of one end of the externally threaded pipe 14. The limit nut 18 is located inside the sleeve body 1. The outer surface of the partition plate 16... The circular surface is provided with an annular groove 2, and a sealing ring 21 is fixedly connected inside the annular groove 2. The sealing ring 21 is slidably connected to the inner wall surface of the sleeve body 1. In use, the bottom of the sleeve body 1 can be aligned with the grouting hole, and screws can be connected through the fixing hole 12 on the fixing plate 11, so that it can be assembled and fixed, which is convenient for alignment and use. Then, a pipe can be connected from the position of the combined cylinder 17, and grout can be injected from the inside of the grouting cavity 15, which is convenient for adjustment and use. The grout enters the bottom of the partition 16 and can enter the grouting position, which is convenient for installation and use, and has high adaptability. In addition, in use, the external threaded pipe can be inserted into the sliding hole 13 first, and the partition 16 can be inserted into the sleeve body 1, which is convenient for separate installation, avoids interference, and has high adaptability.

[0027] Please see Figure 2 and Figure 5 The upper end of the sleeve body 1 is provided with combined threaded holes 22 on both sides. The mounting cylinder 23 is installed inside the combined threaded holes 22. One end of the mounting cylinder 23 is provided with a threaded head 26. The threaded head 26 is threaded into the inside of the combined threaded hole 22. The mounting cylinder 23 is located on both sides of the external threaded pipe 14 and below the combined cylinder 17. The mounting cylinder is connected through the combined threaded holes, which can be threaded for installation and positioning, which is convenient for separate assembly and has high adaptability. The threaded head 26 is threaded into the positioning threaded hole 22, which is conducive to separate installation and has high adaptability.

[0028] A clamping spring 24 is fixedly connected inside the mounting sleeve 23. The clamping spring 24 is located on both sides inside the sleeve body 1. One end of the clamping spring 24 is fixedly connected to a clamping block 25. The clamping block 25 is clamped to both sides of the upper surface of the partition 16. The clamping block 25 and the partition 16 are separate structures. The clamping block 26 is located on both sides of the external threaded tube 14. The mounting sleeve connects the clamping spring and the clamping block, which can assist in clamping the partition, pressing and adjusting the depth, and compressing and lifting the height without interference. It is convenient, stable, and easy to use in combination. The screw head 26 is screwed into place. The threaded installation is inserted into the combined threaded hole 22, which can separately connect the mounting cylinder 23 and the clamping spring 24, thereby pressing the clamping block 25 against the upper end of the partition 16. This can press the partition 16 downward, reducing the space below and thus expelling air from the bottom. Grouting from inside the grouting cavity 15 can fill the area below the partition 16, allowing for slow grouting and reducing air holes. As the grouting height increases, it can push the partition 16 upward, thereby compressing the clamping spring 24 and moving it upward. This facilitates adjustment and use, promotes slow, uniform, and stable grouting, and is beneficial for installation and use.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A prefabricated sleeve grouting device, comprising a sleeve body (1), wherein a fixing plate (11) is fixedly connected to one side of the sleeve body (1), and the surface of the fixing plate (11) is provided with fixing holes (12), characterized in that: A sliding hole (13) is provided at the center of one end surface of the sleeve body (1). An external threaded pipe (14) is slidably installed inside the sliding hole (23). A grouting cavity (15) is provided inside the external threaded pipe (14). A partition plate (16) is fixedly connected to one end of the external threaded pipe (14). The partition plate (16) is slidably installed inside one end of the sleeve body (1). A combination cylinder (17) is threadedly installed at the other end of the external threaded pipe (14). The combination cylinder (17) is located at the upper end of the sleeve body (1). A limit nut (18) is threadedly installed on one end surface of the external threaded pipe (14). The limit nut (18) is located inside the sleeve body (1). An annular groove (2) is provided on the outer circular surface of the partition plate (16). A sealing ring (21) is fixedly connected inside the annular groove (2). The sealing ring (21) is slidably connected to the inner wall surface of the sleeve body (1).

2. The assembled sleeve grouting device according to claim 1, characterized in that: The upper end of the sleeve body (1) is provided with combined threaded holes (22) on both sides, and an installation cylinder (23) is installed inside the combined threaded holes (22).

3. The assembled sleeve grouting device according to claim 2, characterized in that: One end of the mounting cylinder (23) is provided with a threaded head (26), which is threaded into the interior of the combined threaded hole (22).

4. The assembled sleeve grouting device according to claim 2, characterized in that: The mounting cylinder (23) is located on both sides of the external threaded pipe (14) and below the combined cylinder (17).

5. The assembled sleeve grouting device according to claim 1, characterized in that: A tightening spring (24) is fixedly connected inside the mounting sleeve (23), and the tightening spring (24) is located on both sides inside the sleeve body (1).

6. The assembled sleeve grouting device according to claim 5, characterized in that: One end of the clamping spring (24) is fixedly connected to a clamping block (25), which is clamped to both sides of the upper surface of the partition (16).

7. The assembled sleeve grouting device according to claim 6, characterized in that: The clamping block (25) and the partition plate (16) are separate structures, and the clamping block (26) is located on both sides of the external threaded pipe (14).