Full grouting sleeve with good sealing effect

Abstract

The utility model relates to full grouting sleeve technical field discloses a full grouting sleeve with good sealing effect, including the cylinder wall, the upper end outside fixed connection of cylinder wall has the liquid outlet pipe, the lower end outside fixed connection of cylinder wall has the liquid injection pipe, the upper and lower sides of cylinder wall all are provided with the reinforcing steel bar, the upper and lower ends fixed connection of cylinder wall has the fixed ring, the inboard fixed connection of fixed ring has the fixed sealing ring, the outside screw thread connection of reinforcing steel bar has the sliding sealing ring, the inside of upper and lower ends of cylinder wall is provided with a plurality of first buckles, one end fixed connection of first buckle is in the inside of upper and lower ends of cylinder wall, the other end of first buckle is close to the outside of reinforcing steel bar, the inclination direction of first buckle is consistent with the movement direction of reinforcing steel bar, the inside of the middle part of cylinder wall is provided with the limit component, in the utility model, through double -layer sealing structure, prevent slurry leakage, accurate positioning reinforcing steel bar depth, effectively promote construction sealing property and structure bearing stability.

Description

Technical Field

[0001] This utility model relates to the field of full grouting sleeve technology, and in particular to a full grouting sleeve with good sealing effect. Background Technology

[0002] As a core component of steel bar connection in prefabricated concrete structures, the performance of fully grouted sleeves directly determines the overall load-bearing capacity and durability of building structures. With the development of prefabricated buildings towards high-rise and large-span structures, higher requirements are placed on the sealing performance, positioning accuracy, and grouting fullness of steel bar connection nodes. Especially under complex working conditions, the sealing reliability and connection stability of sleeves have become key links in ensuring structural safety. Its technical optimization is of great significance to promoting the industrialization of prefabricated buildings.

[0003] Currently, most fully grouted sleeves on the market use a single sealing ring for end sealing, combined with ordinary clips or fixing blocks to achieve initial positioning of the rebar. This design has significant limitations: First, the sealing structure relies solely on a single sealing ring, making it susceptible to leakage at the end due to minor installation deviations, sealing ring aging, or fluctuations in grouting pressure, affecting construction quality and efficiency. Second, the rebar positioning lacks precise feedback and locking mechanisms; insertion depth largely depends on manual experience, making consistency difficult to guarantee. Furthermore, the inner walls of current sleeves are mostly smooth surfaces or simple straight grooves, easily leading to air bubbles trapped in the gaps between the rebar and the sleeve wall, and in the middle of the sleeve wall. These air bubbles directly reduce the bonding strength between the grout and the rebar, weakening the mechanical properties of the connection joint. In response to technical problems such as insufficient sealing and inaccurate positioning, this application proposes a fully grouted sleeve with good sealing performance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fully grouted sleeve with good sealing performance. This sleeve prevents grout overflow through double-layer sealing, thereby improving construction sealing, grouting quality, and structural load-bearing stability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A fully grouted sleeve with good sealing effect includes a cylinder wall 1. A liquid outlet pipe is fixedly connected to the outer side of the upper end of the cylinder wall 1, and a liquid injection pipe is fixedly connected to the outer side of the lower end of the cylinder wall. Reinforcing bars are provided on both the upper and lower sides of the cylinder wall. Fixing rings are fixedly connected to the upper and lower ends of the cylinder wall. A fixing sealing ring is fixedly connected to the inner side of the fixing ring. A sliding sealing ring is threadedly connected to the outer side of the reinforcing bars. A plurality of first buckles are provided on the inner side of the upper and lower ends of the cylinder wall. One end of the first buckle is fixedly connected to the inner side of the upper and lower ends of the cylinder wall, and the other end of the first buckle is tightly attached to the outer side of the reinforcing bars. The inclination direction of the first buckle is consistent with the movement direction of the reinforcing bars. A limit component is provided on the inner side of the middle part of the cylinder wall.

[0006] Furthermore, the limiting component includes a fixed inner ring fixedly connected to the inner side of the middle part of the cylinder wall, a second buckle fixedly connected to the inner side of the fixed inner ring, a top plate provided on the lower side of the reinforcing bar, a plurality of connecting plates fixedly connected to the upper side of the top plate, and a connecting ring fixedly connected to the upper end of the connecting plate.

[0007] Furthermore, the limiting component also includes helical teeth fixedly connected to the outside of the connecting plate, with the opposite side of the helical teeth disposed on the outside of the second buckle.

[0008] Furthermore, a stirring plate is fixedly connected to the inner side of the cylinder wall, and the inner side of the stirring plate is arranged on the outer side of the reinforcing bar.

[0009] Furthermore, a spiral groove is provided on the inner side of the cylinder wall, with the lower side of the spiral groove located at the inner end of the injection pipe and the upper side of the spiral groove located at the inner end of the outlet pipe.

[0010] Furthermore, a number of protrusions are fixedly connected to the inner side of the cylinder wall, and the protrusions are all located on the lower side of the spiral groove.

[0011] Furthermore, the inner side of the fixed sealing ring is slidably connected to the outer side of the reinforcing bar, and the inner side of the sliding sealing ring is tightly attached to the outer side of the fixed sealing ring.

[0012] Furthermore, the outer side of the sliding sealing ring is slidably connected to the opposite side of the fixed ring and the fixed sealing ring.

[0013] This utility model has the following beneficial effects: 1. In this utility model, a double-layer sealing structure is formed by the fixing sealing ring on the inner side of the fixing ring and the sliding sealing ring on the outer side of the reinforcing bar, which greatly reduces the leakage gap and can effectively prevent the grout from overflowing during the grouting process. At the same time, the first buckle at the upper and lower ends of the cylinder wall is tightly attached to the reinforcing bar, which can prevent the reinforcing bar from loosening due to external force or vibration after insertion, ensuring the initial positioning stability of the reinforcing bar and improving the construction sealing and structural safety.

[0014] 2. In this utility model, the protrusion and the stirring plate can also remove air bubbles in the slurry. The steel bar pushes the top plate to make the inclined teeth of the connecting plate engage with the second buckle, which can not only accurately control the insertion depth of the steel bar, but also prevent subsequent displacement, enhance the bonding strength between the steel bar and the slurry, and improve the load-bearing stability of the node. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a fully grouted sleeve with good sealing effect proposed in this utility model; Figure 2 This is a schematic diagram of a spiral grooved fully grouted sleeve with good sealing effect proposed in this utility model; Figure 3 A schematic diagram of the sealing ring for a fully grouted sleeve with good sealing effect proposed in this utility model; Figure 4 This is a schematic diagram of the helical teeth of a fully grouted sleeve with good sealing effect proposed in this utility model.

[0016] Legend: 1. Cylinder wall; 2. Discharge pipe; 3. Injection pipe; 4. Reinforcing bar; 5. Fixing ring; 6. Fixing sealing ring; 7. Sliding sealing ring; 8. First snap-fit; 9. Protrusion; 10. Agitator; 11. Spiral groove; 12. Fixing inner ring; 13. Second snap-fit; 14. Top plate; 15. Connecting plate; 16. Connecting ring; 17. Helical teeth. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a fully grouted sleeve with good sealing effect, comprising a sleeve wall 1. A liquid outlet pipe 2 is fixedly connected to the outer side of the upper end of the sleeve wall 1, and a liquid injection pipe 3 is fixedly connected to the outer side of the lower end of the sleeve wall 1. Reinforcing bars 4 are provided on both the upper and lower sides of the sleeve wall 1. Fixing rings 5 ​​are fixedly connected to the upper and lower ends of the sleeve wall 1. A fixing sealing ring 6 is fixedly connected to the inner side of the fixing ring 5. A sliding sealing ring 7 is threadedly connected to the outer side of the reinforcing bars 4. A plurality of first buckles 8 are provided on the inner sides of the upper and lower ends of the sleeve wall 1. One end of each first buckle 8 is fixedly connected to the inner sides of the upper and lower ends of the sleeve wall 1, and the other end of each first buckle 8 is tightly abutted against the reinforcing bars. A stirring plate 10 is fixedly connected to the inner side of the cylinder wall 1 on the outside of the 4. The inner side of the stirring plate 10 is set on the outside of the reinforcing bar 4. A spiral groove 11 is opened on the inner side of the cylinder wall 1. The lower side of the spiral groove 11 is set on the inner end of the injection pipe 3, and the upper side of the spiral groove 11 is set on the inner end of the outlet pipe 2. Several protrusions 9 are fixedly connected to the inner side of the cylinder wall 1. All protrusions 9 are set on the lower side of the spiral groove 11. The inner side of the fixed sealing ring 6 is slidably connected to the outside of the reinforcing bar 4. The inner side of the sliding sealing ring 7 is tightly attached to the outside of the fixed sealing ring 6. The outer side of the sliding sealing ring 7 is slidably connected to the opposite side of the fixed ring 5 and the fixed sealing ring 6.

[0019] First, insert the reinforcing bar 4 into the upper and lower sections of the cylinder wall 1. Rotate and slide the sealing ring 7 to move it along the reinforcing bar 4 until it is tightly close to the outer ring of the fixed sealing ring 6, forming a double-layer sealing structure. This further compresses the leakage gap, effectively preventing grout from overflowing during grouting and ensuring the sealing effect. Inject the grout through the injection pipe 3. Several first clips 8 are installed on the inner side of the cylinder wall 1. The inclination direction of the first clips 8 is consistent with the movement direction of the reinforcing bar 4, restricting the displacement of the reinforcing bar 4 without affecting its insertion. This also prevents the reinforcing bar 4 from being damaged by external forces after insertion. Force or vibration loosens the steel bar 4, ensuring the initial positioning stability. Several protrusions 9 are fixed on the inner side of the cylinder wall 1. Through the blocking and diversion effect of the protrusions 9, the gas in the grout can be better discharged. When the grout passes through the agitator 10, local turbulence will be generated. The turbulence can discharge the tiny air bubbles in the grout, reduce the impact of residual air bubbles on the bonding strength between the grout and the steel bar 4, and improve the load-bearing stability of the connection node. When the grout fills the upper end of the cylinder wall 1 along the spiral groove 11 and flows out from the outlet pipe 2, it can be judged that the inside of the cylinder wall 1 is completely filled with grout, and then the grouting is stopped.

[0020] Reference Figures 1-3 A fixed inner ring 12 is fixedly connected to the inner side of the middle part of the cylinder wall 1. A second buckle 13 is fixedly connected to the inner side of the fixed inner ring 12. A top plate 14 is provided on the lower side of the reinforcing bar 4. Several connecting plates 15 are fixedly connected to the upper side of the top plate 14. A connecting ring 16 is fixedly connected to the upper end of the connecting plate 15. An oblique tooth 17 is fixedly connected to the outer side of the connecting plate 15. The opposite side of the oblique tooth 17 is located on the outer side of the second buckle 13.

[0021] During the insertion of the reinforcing bar 4, its lower end pushes the top plate 14 on the inner side of the middle of the cylinder wall 1 to move upward. Several connecting plates 15 fixed on the upper side of the top plate 14 and the connecting ring 16 fixed on the upper end of the connecting plate 15 will move synchronously with the top plate 14. The top plate 14 ensures that the depth positioning and insertion action of the reinforcing bar 4 are completed synchronously. The inclined teeth 17 fixed on the outer side of the connecting plate 15 are opposite to the second buckle 13 on the inner side of the fixing inner ring 12 fixed on the inner side of the middle of the cylinder wall 1. When the top plate 14 drives the connecting plate 15 to move to the preset position, the inclined teeth 17 and the second buckle 13 engage, restricting the reverse movement of the connecting plate 15, preventing displacement of the reinforcing bar 4 after insertion and causing deviation, and enabling better judgment of the insertion depth. Working principle: First, insert the reinforcing bar 4 into the upper and lower sections of the cylinder wall 1. Rotate and slide the sealing ring 7 to move it along the reinforcing bar 4 until it is tightly close to the outside of the fixed sealing ring 6, forming a seal to prevent slurry leakage. Inject the slurry through the injection pipe 3. Several protrusions 9 are fixed on the inner side of the cylinder wall 1, which can buffer and guide the injected slurry. When the slurry passes through the agitator 10, it will generate local turbulence. When the slurry fills the upper end of the cylinder wall 1 along the spiral groove 11 and flows out from the outlet pipe 2, it can be determined that the inside of the cylinder wall 1 is completely filled with slurry. Grouting is then stopped. During the insertion of the reinforcing bar 4, its lower end will push the top plate 14 on the inner side of the middle of the cylinder wall 1 to move upward. Several connecting plates 15 fixed on the upper side of the top plate 14 and the connecting ring 16 fixed on the upper end of the connecting plate 15 will move synchronously with the top plate 14. The inclined teeth 17 fixed on the outer side of the connecting plate 15 are opposite to the second buckle 13 on the inner side of the fixed inner ring 12 fixed on the inner side of the middle of the cylinder wall 1. When the top plate 14 drives the connecting plate 15 to move to the preset position, the inclined teeth 17 and the second buckle 13 engage, restricting the connecting plate 15 from moving in the opposite direction.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully grouted sleeve with good sealing performance, characterized in that, The cylinder includes a cylinder wall (1), with an outlet pipe (2) fixedly connected to the outer side of the upper end of the cylinder wall (1) and an injection pipe (3) fixedly connected to the outer side of the lower end of the cylinder wall (1). Reinforcing bars (4) are provided on both the upper and lower sides of the cylinder wall (1). Fixing rings (5) are fixedly connected to the upper and lower ends of the cylinder wall (1). Fixing sealing rings (6) are fixedly connected to the inner side of the fixing rings (5). Sliding sealing rings (7) are threadedly connected to the outer side of the reinforcing bars (4). Several first buckles (8) are provided on the inner side of the upper and lower ends of the cylinder wall (1). One end of the first buckle (8) is fixedly connected to the inner side of the upper and lower ends of the cylinder wall (1), and the other end of the first buckle (8) is tightly attached to the outer side of the reinforcing bars (4). A limit assembly is provided on the inner side of the middle part of the cylinder wall (1).

2. The fully grouted sleeve with good sealing effect according to claim 1, characterized in that: The limiting component includes a fixed inner ring (12) fixedly connected to the inner side of the middle part of the cylinder wall (1), a second buckle (13) fixedly connected to the inner side of the fixed inner ring (12), a top plate (14) provided on the lower side of the reinforcing bar (4), a plurality of connecting plates (15) fixedly connected to the upper side of the top plate (14), and a connecting ring (16) fixedly connected to the upper end of the connecting plate (15).

3. The fully grouted sleeve with good sealing effect according to claim 2, characterized in that: The limiting component also includes a helical tooth (17) fixedly connected to the outside of the connecting plate (15), and the opposite side of the helical tooth (17) is located on the outside of the second buckle (13).

4. The fully grouted sleeve with good sealing effect according to claim 1, characterized in that: A stirring plate (10) is fixedly connected to the inner side of the cylinder wall (1), and the inner side of the stirring plate (10) is arranged on the outer side of the reinforcing bar (4).

5. The fully grouted sleeve with good sealing effect according to claim 1, characterized in that: The inner side of the cylinder wall (1) is provided with a spiral groove (11), the lower side of the spiral groove (11) is provided at the inner end of the injection pipe (3), and the upper side of the spiral groove (11) is provided at the inner end of the outlet pipe (2).

6. The fully grouted sleeve with good sealing effect according to claim 5, characterized in that: The inner side of the cylinder wall (1) is fixedly connected with several protrusions (9), and the protrusions (9) are all located on the lower side of the spiral groove (11).

7. The fully grouted sleeve with good sealing effect according to claim 1, characterized in that: The inner side of the fixed sealing ring (6) is slidably connected to the outer side of the reinforcing bar (4), and the inner side of the sliding sealing ring (7) is tightly attached to the outer side of the fixed sealing ring (6).

8. The fully grouted sleeve with good sealing effect according to claim 1, characterized in that: The outer side of the sliding sealing ring (7) is slidably connected to the opposite side of the fixed ring (5) and the fixed sealing ring (6).

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