Quick positioning grouting sleeve

Abstract

The utility model relates to a quick positioning grouting sleeve which comprises a cylindrical barrel body with the axis horizontally arranged left and right, a discharging port and a feeding port are formed in the left side and the right side of the side wall of the barrel body respectively, annular blocks are arranged at the left end and the right end of the inner side of the barrel body respectively, the arc-shaped blocks and the barrel body are coaxial, and a plurality of through holes evenly distributed along the circumference are formed in the outer edge faces of the annular blocks. Each through hole is internally provided with an ejector block capable of moving in the radial direction of the corresponding through hole, a plurality of ribs are fixed to the inner wall of the barrel, the ribs are parallel to the axis of the barrel and correspond to the ejector blocks one to one, the outer ends of the ejector blocks make contact with the ribs and can freely slide in the length direction of the ribs, and the middles of the ribs protrude in the axis direction of the barrel; through the cooperation of the annular block and the jacking block, the reinforcing steel bar can drive the annular block to synchronously move inwards after being inserted into the sleeve body, the middle protrusions of the ribs can enable the jacking block to clamp the reinforcing steel bar inwards, the reinforcing steel bar is located at the coaxial position of the sleeve body, manual righting is not needed, and the installation efficiency of the grouting sleeve is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction, specifically a quick-positioning grouting sleeve. Background Technology

[0002] The connection between precast concrete components requires the use of sleeve grouting connection. Most existing grouting sleeves are straight cylindrical structures with a lack of internal positioning. During the pouring process, the reinforcing bars and the sleeve are prone to tilting, making it difficult to ensure the coaxiality of the connected reinforcing bars. This results in uneven thickness of the concrete grout around the reinforcing bars, affecting the mechanical properties of the connection.

[0003] The grouting sleeve disclosed in the prior art (CN210508060U) has a conical cavity, which guides and aligns the end of the reinforcing bar as it moves inward along the sleeve axis. However, this design has the following drawbacks: 1. Since the extension length of each reinforcing bar on the precast component is not fixed and difficult to unify, the positioning accuracy of the prepositioning component on the reinforcing bar is required to be high. In actual use, length deviations can affect the normal assembly of the grouting sleeve; 2. The space in the middle of the conical cavity is small. After the reinforcing bar and the prepositioning component are inserted, the connection opening will be further narrowed, affecting the normal passage of concrete grout; 3. The conical cavity results in a larger sleeve thickness, increasing material usage and significantly increasing production costs. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the existing technology, this utility model adopts a quick positioning grouting sleeve, which solves the problem of poor practicality of the existing grouting sleeve.

[0005] The technical solution is a rapid positioning grouting sleeve, comprising a cylindrical body placed horizontally on both sides of the axis. The left and right sides of the side wall of the cylinder are respectively provided with a discharge port and a feed port. An annular block is provided at each of the left and right ends of the inner side of the cylinder. The annular block is coaxial with the cylinder. Multiple through holes are evenly distributed around the circumference on the outer edge of the annular block. A top block that can move radially along the through hole is provided in each through hole. Multiple ribs are fixed on the inner wall of the cylinder. The ribs are parallel to the axis of the cylinder and correspond one-to-one with the top blocks. The outer end of the top block contacts the rib and can slide freely along the length of the rib. The middle part of the rib protrudes towards the axis of the cylinder.

[0006] The discharge port is fixed with a discharge pipe, and the inlet port is fixed with an inlet pipe. Both the discharge pipe and the inlet pipe are connected to the cylinder cavity.

[0007] The inner edge of the cylinder near the discharge port is provided with an annular groove, and an annular rubber sealing ring is provided in the annular groove.

[0008] The rib has a central protrusion that transitions into a sloping arc that gradually rises from both sides towards the center.

[0009] A rubber pad is fixed to one end of the top block near the inner side of the annular block.

[0010] A stop bar is fixed to one end face of the annular block near the middle of the cylinder, and the stop bar passes through the axis of the annular block.

[0011] The top block has a sliding groove extending through the left and right end faces at its outer end. The ribs can be placed in the corresponding sliding grooves of the top block, allowing the top block to slide along the length of the ribs. The sidewalls of the sliding grooves can restrict the top block from moving circumferentially around the annular block.

[0012] The highest point of the rib's central protrusion is a plane with a constant height.

[0013] This utility model has the following advantages over the prior art:

[0014] 1. This utility model, through the cooperation of the annular block and the top block, enables the reinforcing bar to move inward synchronously after being inserted into the cylinder. The protrusion in the middle of the rib enables the top block to clamp the reinforcing bar inward, so that the reinforcing bar is located in a coaxial position in the cylinder, without the need for manual straightening, thus improving the installation efficiency of the grouting sleeve.

[0015] 2. After the top block clamps the reinforcing bar, the chute can restrict the top block from moving around the annular block in the circumferential direction, making the integrity of the cylinder and the reinforcing bar higher during the grouting process;

[0016] 3. By using ribs evenly distributed along the circumference to guide the top block to move towards the center and clamp the reinforcing bars, the overall tensile and shear strength of the cylinder can be improved, and a larger flow space can be provided for the concrete grout, thus ensuring the grouting quality.

[0017] 4. By utilizing the fact that the highest point of the rib's central protrusion is a plane with a constant height, the reinforcing bar can be clamped by the top block at any position of the highest protrusion, even if there is a length deviation, greatly improving its practicality. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention.

[0019] Figure 2 This is the front sectional view of the present invention.

[0020] Figure 3 These are part drawings of the annular block and the top block of this utility model.

[0021] Figure 4 This is a front sectional view after the reinforcing bars are inserted into the cylinder. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Depend on Figures 1 to 4The present invention includes a cylindrical body 1 with its axis horizontally positioned horizontally. The left and right sides of the side wall of the cylindrical body 1 are respectively provided with a discharge port 2 and a feed port 3. An annular block 4 is provided at each of the left and right ends of the inner side of the cylindrical body 1. The annular block 4 is coaxial with the cylindrical body 1. Multiple through holes 5 are evenly distributed along the circumference on the outer edge of the annular block 4. Each through hole 5 is provided with a top block 6 that can move radially along the through hole 5. Multiple ribs 7 are fixed on the inner wall of the cylindrical body 1. The ribs 7 are parallel to the axis of the cylindrical body 1 and correspond one-to-one with the top blocks 6. The outer end of the top block 6 contacts the rib 7 and can slide freely along the length of the rib 7. The middle part of the rib 7 protrudes towards the axis of the cylindrical body 1.

[0024] The discharge port 2 is fixed with a discharge pipe 8, and the inlet port 3 is fixed with an inlet pipe 9. Both the discharge pipe 8 and the inlet pipe 9 are connected to the cavity of the cylinder 1.

[0025] An annular groove 10 is provided on the inner edge of the cylinder 1 near the discharge port 2, and an annular rubber sealing ring 11 is provided in the annular groove 10.

[0026] The rib 7 has a central protrusion that transitions into a sloping arc that gradually rises from both sides towards the center.

[0027] A rubber pad 12 is fixed to one end of the top block 6 near the inner side of the annular block 4.

[0028] A stop bar 13 is fixed to one end face of the annular block 4 near the middle of the cylinder 1, and the stop bar 13 passes through the axis of the annular block 4.

[0029] The top block 6 has a sliding groove 14 extending through the left and right end faces at its outer end. The rib 7 can be placed in the sliding groove 14 corresponding to the top block 6, so that the top block 6 can slide along the length of the rib 7. The side wall of the sliding groove 14 can restrict the top block 6 from moving around the annular block 4.

[0030] The highest point of the protrusion in the middle of the rib 7 is a plane with a constant height.

[0031] It is worth mentioning that, in order to prevent the top block 6 from falling out of the through hole 5, a rubber layer that increases friction can be provided between the top block 6 and the through hole 5, so that the top block 6 remains relatively stationary with respect to the through hole 5 when no external force is applied.

[0032] In use, the steel bar on one of the precast components is first inserted into the opening at one end of the annular groove 10 of the cylinder 1, allowing the steel bar to pass through the rubber sealing ring 11 and continue through the annular block 4 until the end of the steel bar contacts the stop bar 13. The steel bar can drive the annular block 4 to move towards the middle of the cylinder 1 through the stop bar 13. The top block 6 can slide along the rib 7 through the sliding groove 14 until the top block 6 moves to the protruding position in the middle of the rib 7. Under the extrusion force of the transition slope, the top block 6 moves radially towards the middle of the annular block 4 until the top block 6 moves to the highest protruding position of the rib 7. The top block 6 presses the rubber pad 12 inward to deform it and fit tightly against the outer edge of the steel bar, thus completing the fixation of the steel bar on one side. Then, the steel bar on the other precast component is inserted into the cylinder 1 through the opening at the opposite end. The contact and movement of the steel bar with the annular block 4 are repeated until the top block 6 clamps and fixes the steel bar on the other side, thus completing the fixation of the grouting sleeve. Then, grout is injected into the cylinder 1 through the feed pipe 9.

[0033] This invention utilizes the cooperation of the annular block 4 and the top block 6 to allow the reinforcing bar to move inward synchronously after being inserted into the cylinder 1. The protrusion in the middle of the rib 7 allows the top block 6 to clamp the reinforcing bar inward, placing it coaxially with the cylinder 1 without the need for manual alignment, thus improving the installation efficiency of the grouting sleeve. After the top block 6 clamps the reinforcing bar, the sliding groove 14 restricts the top block 6 from moving circumferentially around the annular block 4, enhancing the integrity of the cylinder 1 and the reinforcing bar during grouting. The ribs 7, evenly distributed along the circumference, guide the top block 6 to move towards the center to clamp the reinforcing bar, which not only improves the overall tensile and shear strength of the cylinder 1 but also provides greater flow space for the concrete grout, ensuring grouting quality. The highest point of the protrusion in the middle of the rib 7 is a plane with a constant height, ensuring that even if there is a length deviation, the reinforcing bar can be clamped by the top block 6 at any position of the highest protrusion, greatly improving practicality.

Claims

1. A quick-positioning grouting sleeve, characterized in that, The cylinder (1) is a cylindrical body placed horizontally on the left and right sides of the axis. The cylinder (1) has a discharge port (2) and a feed port (3) on the left and right sides of the side wall respectively. The cylinder (1) has an annular block (4) at the left and right ends of the inner side. The annular block (4) is coaxial with the cylinder (1). The outer edge of the annular block (4) has multiple through holes (5) evenly distributed along the circumference. Each through hole (5) has a top block (6) that can move radially along the through hole (5). The inner wall of the cylinder (1) has multiple ribs (7). The ribs (7) are parallel to the axis of the cylinder (1) and correspond one-to-one with the top blocks (6). The outer end of the top block (6) contacts the ribs (7) and can slide freely along the length of the ribs (7). The middle part of the ribs (7) protrudes towards the axis of the cylinder (1).

2. The rapid positioning grouting sleeve according to claim 1, characterized in that, The discharge port (2) is fixed with a discharge pipe (8), and the inlet port (3) is fixed with an inlet pipe (9). Both the discharge pipe (8) and the inlet pipe (9) are connected to the cavity of the cylinder (1).

3. The rapid positioning grouting sleeve according to claim 1, characterized in that, The inner edge of the cylinder (1) near the discharge port (2) is provided with an annular groove (10), and an annular rubber sealing ring (11) is provided in the annular groove (10).

4. The rapid positioning grouting sleeve according to claim 1, characterized in that, The rib (7) has a raised center that transitions into a sloping arc that gradually rises from both sides to the center.

5. A rapid positioning grouting sleeve according to claim 1, characterized in that, The highest point of the rib (7) in the middle protrusion is a plane with a constant height.

6. The rapid positioning grouting sleeve according to claim 1, characterized in that, A rubber pad (12) is fixed to one end of the top block (6) near the inner side of the annular block (4).

7. A rapid positioning grouting sleeve according to claim 1, characterized in that, The annular block (4) has a stop bar (13) fixed on one end face near the middle of the cylinder (1), and the stop bar (13) passes through the axis of the annular block (4).

8. A rapid positioning grouting sleeve according to claim 1, characterized in that, The top block (6) has a sliding groove (14) that runs through the left and right end faces. The rib (7) can be placed in the sliding groove (14) of the corresponding top block (6), so that the top block (6) can slide along the length of the rib (7). The side wall of the sliding groove (14) can restrict the top block (6) from moving around the annular block (4) in a circumferential direction.

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