Grouting sleeve structure
By setting a column of dissolved material inside the sleeve, the problem of air column formation when the grout level rises is solved, thus achieving the stability of grout filling and connection and improving the connection quality.
Patent Information
- Application Number
- CN202520293896.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing grouting sleeve structures, air columns are easily formed when the grout level rises, resulting in cavities at the top of the sleeve and affecting the connection quality.
A dissolving material column section is set inside the sleeve. It is made of waxy polyethylene glycol material and has holes evenly distributed in the column section. The dissolving material column section is flush with the top surface of the inner cavity of the sleeve. The dissolving material column section gradually dissolves in the grouting material and fills the space of the air column section.
Ensure the grout fills the inner cavity of the sleeve to prevent air columns from forming cavities, thereby improving connection quality and performance.
Smart Images
Figure CN223593671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building, in particular to a grouting sleeve structure. BACKGROUND
[0002] The grouting sleeve is a combination of a specially processed sleeve, a matched grouting material and a reinforcing steel bar.
[0003] Specifically, the lower side wall of the grouting sleeve is provided with a grout inlet, and the upper side wall is provided with a grout outlet, the reinforcing steel bar of one prefabricated component is threadedly connected with the upper end of the sleeve, and the reinforcing steel bar of another prefabricated component is inserted into the sleeve, after assembly, the matched grouting material is injected through the grout inlet, and the two prefabricated components are connected through the grouting sleeve structure. This connection structure not only has a connection effect higher than the strength of the reinforcing steel bar base material, but also ensures the compactness of the sleeve interior and the firm adhesion of the reinforcing steel bar and the sleeve.
[0004] However, since the grout outlet of the grouting sleeve is spaced apart from the top of the grouting sleeve, when grouting, as the grouting material level gradually rises, an air column is formed between the top of the grouting sleeve and the grout outlet, the grouting material cannot effectively enter the air column section, and no grout body is formed in the air column section of the grouting sleeve, and the performance is zero.
[0005] Therefore, how to design a grouting sleeve structure to avoid the formation of an air column and a cavity in the cylinder section is a problem to be solved by those skilled in the art. SUMMARY
[0006] The utility model aims at the shortage of prior art, provides a kind of grouting sleeve structure, its structure is simple, processing cost is low, can effectively guarantee that matched grouting material fills full sleeve inner cavity, avoid to appear quality problem.
[0007] The technical scheme of the utility model is: a kind of grouting sleeve structure, including sleeve body, the lower side wall of sleeve body is provided with grout inlet, and the upper side wall is provided with grout outlet, the upper end inner cavity wall of sleeve body is provided with thread section, forms reinforcing steel bar connecting section, the lower end inner cavity of sleeve body forms reinforcing steel bar insertion section, the inner diameter of the inner cavity of sleeve body is adapted to be provided with dissolved material column section in the inner cavity of sleeve body, the top of dissolved material column section is connected with the top surface of the inner cavity of sleeve body, and the lower end surface of dissolved material column section is flush with grout outlet.
[0008] The dissolved material column section is uniformly provided with a plurality of holes.
[0009] The dissolved material column section is made of wax-like polyethylene glycol material.
[0010] The inner cavity upper portion of the sleeve body is provided with a positioning convex ring, the positioning convex ring is located above the grout outlet, and the upper end of the dissolved material column section is connected with the positioning convex ring by adhesion.
[0011] The top surface of the positioning convex ring is a plane, and the bottom surface of the positioning convex ring is a conical surface concave upward.
[0012] The above technical scheme has the following beneficial effects:
[0013] 1. The grouting sleeve structure comprises a sleeve body, an inlet port is arranged on the lower side wall of the sleeve body, an outlet port is arranged on the upper side wall of the sleeve body, and the grouting material is pressurized to enter the inner cavity of the sleeve body from the inlet port of the lower side wall and gradually fill the inner cavity of the sleeve body. A threaded section is arranged on the inner cavity wall of the upper end of the sleeve body to form a steel bar connecting section, and the inner cavity of the lower end of the sleeve body forms a steel bar insertion section. The sleeve body is first sleeved on the steel bar of the lower prefabricated part, and then is threadedly connected with the steel bar of the upper prefabricated part through the threaded section. After sealing, the grouting material is pressed into the inner cavity of the sleeve body through the inlet port. A dissolving material column section is arranged in the inner cavity of the sleeve body, the inner diameter of the dissolving material column section is adapted to the inner cavity of the sleeve body, the upper end of the dissolving material column section is connected with the top surface of the inner cavity of the sleeve body, the lower end surface of the dissolving material column section is flush with the outlet port, and the dissolving material column section occupies the space of the air column section of the traditional sleeve structure. When the liquid level of the grouting material gradually rises to the outlet port, an air column section that cannot be compressed is not formed at the top of the inner cavity of the sleeve structure, but the dissolving material column section gradually dissolves in the grouting material, and the grouting material fills the space of the dissolving material column section, so that the grouting material fills the space between the sleeve body and the sleeved steel bar, avoids the occurrence of a cavity, and ensures the connection quality and connection performance.
[0014] 2. The dissolving material column section is uniformly provided with a plurality of holes, which can improve the contact area between the grouting material and the dissolving material column section and improve the dissolving efficiency of the dissolving material column section.
[0015] 3. A positioning convex ring is arranged on the upper portion of the inner cavity of the sleeve body, the positioning convex ring is located above the outlet port, the upper end of the dissolving material column section is connected with the positioning convex ring through adhesion, the top surface of the positioning convex ring is a plane, and the bottom surface of the positioning convex ring is a conical surface concave upward. The top surface of the positioning ring table limits the threaded connection position of the sleeve body, so as to ensure the connection strength of the sleeve body and the upper prefabricated part. In addition, the top surface of the positioning ring table is designed as a plane, and the bottom surface is designed as a conical surface, so that the outer peripheral thickness of the positioning ring table is greater than the inner peripheral thickness, the structural strength of the positioning ring table itself and the connection strength with the sleeve body are ensured, and in addition, the dissolving material column section of the grouting material is also facilitated.
[0016] The following will be further described in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model.
[0018] In the drawing, 1 is sleeve body, 2 is into pulp port, 3 is out pulp port, 4 is reinforcing steel bar connecting section, 5 is reinforcing steel bar inserting section, 6 is dissolving material column section, 7 is positioning convex ring. DETAILED DESCRIPTION
[0019] Reference Figure 1 It is a specific embodiment of a grouting sleeve structure. The grouting sleeve structure comprises a sleeve body 1, usually, the sleeve body is made of steel material. The lower side wall of the sleeve body 1 is provided with an into pulp port 2, and the upper side wall is provided with an out pulp port 3. The inner cavity wall of the upper end of the sleeve body 1 is provided with a threaded section, forming a reinforcing steel bar connecting section 4. The lower end inner cavity of the sleeve body forms a reinforcing steel bar inserting section 5. Obviously, a plurality of annular ribs are arranged in the reinforcing steel bar inserting section along the length direction. In this embodiment, the inner cavity of the sleeve body 1 is provided with a positioning convex ring 7, which separates the reinforcing steel bar connecting section and the reinforcing steel bar inserting section. The positioning convex ring 7 is located above the out pulp port 3. Specifically, the top surface of the positioning convex ring 7 is a plane, and the bottom surface of the positioning convex ring 7 is a conical surface that is concave upward. The sleeve body 1 is provided with a dissolving material column section 6 in the inner cavity. The dissolving material column section 6 is adapted to the inner diameter of the inner cavity of the sleeve body 1. The upper end of the dissolving material column section 6 is connected to the top surface of the inner cavity of the sleeve body 1. The lower end surface of the dissolving material column section 6 is flush with the out pulp port 3. Specifically, the upper end of the dissolving material column section 6 is connected to the bottom surface of the positioning convex ring 7 by adhesion. The dissolving material column section is made of a wax-like polyethylene glycol material. In order to improve the dissolving efficiency of the dissolving material column section, a plurality of holes are uniformly distributed in the dissolving material column section 6.
[0020] The working principle of the utility model is as follows: the sleeve body is first sleeved on the reinforcing steel bar of the lower prefabricated part, and then is connected with the reinforcing steel bar of the upper prefabricated part through the threaded section. After sealing, the grouting material is pressed into the inner cavity of the sleeve body through the into pulp port. The liquid level of the grouting material gradually rises to the out pulp port. The dissolving material column section gradually dissolves in the grouting material, and the grouting material fills the space of the dissolving material column section, so that the grouting material fills the space between the sleeve body and the sleeve reinforcing steel bar, avoiding the occurrence of cavities. The grouting material overflows through the out pulp port, and the pressing is stopped. After the blocking object is removed, the detection is qualified.
Claims
1. A grouting sleeve structure, comprising a sleeve body (1), a lower side wall of the sleeve body (1) is provided with a grout inlet (2), an upper side wall is provided with a grout outlet (3), an inner cavity wall of an upper end of the sleeve body (1) is provided with a threaded section, forming a steel bar connecting section (4), an inner cavity of a lower end of the sleeve body forms a steel bar inserting section (5), characterized in that: A dissolving material column segment (6) is arranged in the inner cavity of the sleeve body (1), the dissolving material column segment (6) is adapted to the inner diameter of the inner cavity of the sleeve body (1), the upper end of the dissolving material column segment (6) is connected with the top surface of the inner cavity of the sleeve body (1), and the lower end surface of the dissolving material column segment (6) is flush with the pulp outlet (3).
2. A grout sleeve structure according to claim 1, characterised in that: The dissolving material column segment (6) is uniformly provided with a plurality of holes.
3. A grout sleeve structure according to claim 1 or 2, characterised in that: The dissolving material column segment (6) is made of a wax-like polyethylene glycol material.
4. A grout sleeve structure according to claim 1, characterised in that: A positioning convex ring (7) is arranged on the upper portion of the inner cavity of the sleeve body (1), the positioning convex ring (7) is located above the pulp outlet (3), and the upper end of the dissolving material column segment (6) is adhesively connected with the positioning convex ring (7).
5. A grout sleeve structure according to claim 4, characterised in that: The top surface of the positioning convex ring (7) is a plane, and the bottom surface of the positioning convex ring (7) is a conical surface concave upward.