A two-point simultaneous grouting structure for assembling a shear wall steel sleeve connection

Abstract

This utility model relates to the field of building construction technology and discloses a two-point simultaneous grouting structure for connecting rebar sleeves in assembled shear walls. It includes a pipe body with material conveying pipes connected to both the front and rear sides of its left end, and a material discharge pipe connected to its left end. An operating box is located on the right side of the pipe body. A valve is rotatably connected to the right end of the operating box, and a rotating gear is fixedly connected to the other end of the valve. A serrated strip is slidably connected to both the upper and lower ends of the operating box, with the rotating gear meshing with the serrated strip. A moving block is fixedly connected to the outer wall of the serrated strip. In this utility model, by rotating the valve, the serrated strip moves up and down, and a fixing plate clamps and fixes the rebar, enabling more accurate insertion of the rebar into the sleeve, ensuring the rebar's axis coincides, and solving the problem of uneven grout distribution within the sleeve, which affects the connection strength between the rebar and the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a structure for simultaneous grouting at two points when connecting steel reinforcement sleeves in assembled shear walls. Background Technology

[0002] The two-point simultaneous grouting structure for connecting steel reinforcement sleeves in prefabricated shear walls is a technique used in the construction of prefabricated shear walls. During the grouting operation, cement-based grout is injected into the connecting sleeve through the grouting port of the grouting sleeve using grouting equipment. As the grout is injected, air and excess grout in the sleeve are discharged from the discharge port until the grout overflows from the discharge port, indicating that the sleeve is full of grout. At this point, a sealing device is used to seal the extended end of the grouting sleeve to prevent grout overflow and air from entering, ensuring the reliability of the connection between the steel reinforcement and the sleeve.

[0003] A search revealed Chinese patent publication number CN205399733U, which discloses a structure for simultaneous grouting at two points using assembled shear wall rebar sleeves. Multiple grouting sleeves are spaced apart from left to right within the shear wall. Two rows of openings are pre-drilled on the shear wall; the upper row is the outlet for the grouting sleeves, and the lower row is the injection hole. A horizontal grouting cavity connecting all the injection holes is located below the shear wall and is sealed to the perimeter of the shear wall. All injection holes, except those located on the left and right sides of the shear wall, are... Except for the two grouting holes at the end, all other grouting holes are sealed. This utility model is simple to operate, saves time and labor, and can improve work efficiency. It avoids the disadvantages of traditional processes when dealing with large-sized walls, such as easy blockage of grouting holes, long grouting time, and low grouting efficiency. However, during construction, it is necessary to ensure that the axis coincides and the deviation does not exceed the specified range. Due to the limitations of construction site conditions and worker operation level, it is difficult to fully meet the requirements, resulting in uneven distribution of grout in the sleeve and affecting the connection strength between the steel bar and the sleeve. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a two-point grouting structure for connecting shear wall steel reinforcement sleeves, aiming to improve the problem in the prior art that causes uneven distribution of grout inside the sleeve, affecting the connection strength between the steel reinforcement and the sleeve.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a two-point simultaneous grouting structure for connecting shear wall steel reinforcement sleeves, comprising a pipe body, with material conveying pipes connected to both the front and rear sides of the left end of the pipe body, and a material discharge pipe connected to the left end of the pipe body. An operation box is provided on the right side of the pipe body, with a valve rotatably connected to the right end of the operation box, and a rotating gear fixedly connected to the other end of the valve. A serrated strip is slidably connected to both the upper and lower ends of the operation box, and the rotating gear meshes with the serrated strip. A moving block is fixedly connected to the outer wall of the serrated strip, a connecting strip is fixedly connected to the middle of the moving block, and fixing strips are fixedly connected to the front and rear ends of the moving block. A connecting plate is fixedly connected to the left end of the fixing strip, and fixing plates are fixedly connected to the front and rear ends of the connecting plate. A fixing piece is fixedly connected to the outer side of the fixing plate. A quick installation mechanism is provided on the left side of the pipe body, which is used for faster and more convenient installation.

[0006] Through the above technical solution: during the process of fixing the steel bars in the shear wall steel bar sleeve connection two-point grouting structure, it is necessary to rotate valve one on the right side of the operation box to drive the rotating gear to rotate. At this time, the upper and lower edges of the operation box achieve synchronous up and down displacement through sliding connection of the sawtooth strip. The rotating gear drives the sawtooth strip to move. A moving block is fixed on the outside of the sawtooth strip to connect various components. A connecting strip is fixed in the center of the moving block to ensure synchronous movement. Fixed strips are fixed at the front and rear ends of the connecting strip. A connecting plate is fixed on the left side of the fixed strip to achieve synchronous movement. Fixed plates are fixed at the front and rear ends of the connecting plate for fixing between components. Fixed plates are fixed on the outside of the fixed plate to clamp the steel bars and ensure that the steel bars can be inserted into the sleeve more accurately, thereby ensuring the coincidence of the steel bar axis.

[0007] As a further description of the above technical solution:

[0008] The quick-installation mechanism includes a feed pipe located on the left side of the pipe body. A second valve is rotatably connected to the upper front end of the feed pipe, and a reverse threaded rod is fixedly connected to the other end of the second valve. Multiple threaded blocks are slidably connected inside the feed pipe, and the reverse threaded rod is threadedly connected to the threaded blocks. A retaining ring is fixedly connected to the bottom end of the multiple threaded blocks. Multiple springs are fixedly connected to the right end of the feed pipe, and a retaining block is fixedly connected to the other end of the springs.

[0009] Through the above technical solution: when grouting the structure at two points of the shear wall steel reinforcement sleeve connection, the feed pipe and the delivery pipe need to be clamped together. The initial clamping and fixing is completed by the interaction between the spring on the right side of the feed pipe and the clamping block. Then, the valve at the front end of the feed pipe is rotated. This action will drive the reverse threaded rod to rotate synchronously, thereby causing the threaded block to move in its front-back direction. The movement of the threaded block will drive the retaining ring, realizing the second clamping and fixing, which improves the speed and convenience of the installation operation.

[0010] As a further description of the above technical solution:

[0011] The front and rear ends of the tube are fixedly connected with sealing gaskets, and a feed groove is opened in the middle of the sealing gasket.

[0012] The above technical solution involves fixing sealing gaskets at both ends of the pipe body, with a feed trough in the middle of the sealing gasket.

[0013] As a further description of the above technical solution:

[0014] A fixing ring is fixedly connected to the left end of the operation box, and a fixing groove is opened in the middle of the fixing ring, which is fixedly connected to the tube body.

[0015] The above technical solution involves a fixing ring fixedly connected to the left end of the operation box, with a fixing groove in the middle of the fixing ring, which is fixedly connected to the tube body.

[0016] As a further description of the above technical solution:

[0017] Protective strips are fixedly connected to both the front and rear sides of the connecting strip, and a protective groove is provided in the middle of the protective strip.

[0018] The above technical solution involves fixing protective strips on both the front and rear sides of the connecting strip, and creating a protective groove in the middle of the protective strip.

[0019] As a further description of the above technical solution:

[0020] The operation box has a moving groove on both the front and rear sides of the right end, and a moving bar is slidably connected inside the moving groove.

[0021] The above technical solution involves opening movable slots on both the front and rear sides of the right end of the operation box, with the interior of the movable slots forming a sliding connection structure with the movable strip.

[0022] As a further description of the above technical solution:

[0023] A protective cover is fixedly connected to the right end of the movable strip, and a pull ring is fixedly connected to the top end of the protective cover.

[0024] The above technical solution involves a protective cover installed at the right end of the moving strip via a fixed connection, and a pull ring fitted at the top of the protective cover via a fixed connection.

[0025] As a further description of the above technical solution:

[0026] A hinge is fixedly connected to the bottom of the protective cover, and a protective plate is fixedly connected to the bottom end of the hinge.

[0027] The above technical solution involves a hinge fixedly connected to the bottom of the protective cover, and a protective plate fixedly connected to the bottom of the hinge.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, by rotating valve one, the saw blade moves up and down, thereby causing the moving block connected to the saw blade to drive the connecting strip to move. The fixing plate clamps and fixes the reinforcing bar, which enables the reinforcing bar to be inserted into the sleeve more accurately, ensuring that the axis of the reinforcing bar coincides. This solves the problem of uneven distribution of grout in the sleeve, which affects the connection strength between the reinforcing bar and the sleeve.

[0030] 2. In this utility model, the reverse threaded rod connected to the valve drives the threaded block to move, so that the retaining ring under the threaded block is engaged and fixed. The spring and the retaining block provide secondary fixation, which realizes faster and more convenient installation and solves the problems of inconvenient and unstable installation and insufficient sealing at the connection. Attached Figure Description

[0031] Figure 1 This is a perspective view of a two-point grouting structure for a shear wall steel reinforcement sleeve connection proposed in this utility model.

[0032] Figure 2 This is a front view of a two-point grouting structure for connecting steel reinforcement sleeves in an assembled shear wall, as proposed in this utility model.

[0033] Figure 3 This is a structural breakdown diagram of a two-point grouting structure for a shear wall steel reinforcement sleeve connection proposed in this utility model.

[0034] Figure 4 This utility model proposes a two-point grouting structure for connecting steel reinforcement sleeves in assembled shear walls. Figure 3 Enlarged view of point A in the middle;

[0035] Figure 5 This is a partial exploded view of an assembled shear wall steel reinforcement sleeve connection structure with simultaneous grouting at two points, as proposed in this utility model.

[0036] Figure 6 This is a split diagram of a quick installation mechanism for a shear wall steel reinforcement sleeve connection structure with simultaneous grouting at two points, as proposed in this utility model.

[0037] Legend:

[0038] 1. Pipe body; 2. Quick installation mechanism; 201. Feed pipe; 202. Valve II; 203. Reverse threaded rod; 204. Threaded block; 205. Snap ring; 206. Spring; 207. Snap block; 3. Conveying pipe; 4. Discharging pipe; 5. Sealing gasket; 6. Feed trough; 7. Fixing ring; 8. Fixing groove; 9. Protective strip; 10. Protective groove; 11. Moving groove; 12. Moving strip; 13. Protective cover; 14. Pull ring; 15. Hinge; 16. Protective plate; 17. Operation box; 18. Valve I; 19. Rotary gear; 20. Serrated strip; 21. Moving block; 22. Connecting strip; 23. Fixing strip; 24. Connecting plate; 25. Fixing plate; 26. Fixing piece. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0040] Reference Figure 3 and Figure 5 This utility model provides an embodiment of a two-point simultaneous grouting structure for assembling shear wall rebar sleeves, comprising a pipe body 1, with material conveying pipes 3 connected to both the front and rear sides of the left end of the pipe body 1, and a material discharge pipe 4 connected to the left end of the pipe body 1. An operation box 17 is provided on the right side of the pipe body 1, with a valve 18 rotatably connected to the right end of the operation box 17, providing a power source for the device. A rotating gear 19 is fixedly connected to the other end of the valve 18. Sawtooth strips 20 are slidably connected to both the upper and lower ends of the operation box 17, with the rotating gear 19 meshing with the sawtooth strips 20 for smoother transmission. A moving block 21 is fixedly connected to the outer wall of the sawtooth strip 20, with the middle of the moving block 21 fixed... The pipe body 1 is fixedly connected with a connecting strip 22. The front and rear ends of the moving block 21 are fixedly connected with a fixing strip 23. The left end of the fixing strip 23 is fixedly connected with a connecting plate 24. The front and rear ends of the connecting plate 24 are fixedly connected with a fixing plate 25. The outer side of the fixing plate 25 is fixedly connected with a fixing piece 26 for steel bar clamping. The left side of the pipe body 1 is provided with a quick installation mechanism 2 for faster and more convenient installation. The front and rear ends of the pipe body 1 are fixedly connected with a sealing gasket 5. The sealing gasket 5 has a feeding groove 6 in the middle. The left end of the operation box 17 is fixedly connected with a fixing ring 7. The fixing ring 7 has a fixing groove 8 in the middle. The fixing groove 8 is fixedly connected to the pipe body 1.

[0041] Specifically, when connecting the shear wall reinforcement sleeves, grouting is performed simultaneously at two points to fix the reinforcement. By rotating the valve 18 on the right side of the operating box 17, the rotating gear 19 is driven to rotate. As the rotating gear 19 rotates, the upper and lower edges of the operating box 17 move up and down synchronously along the serrated bar 20. The rotation of the rotating gear 19 drives the serrated bar 20 through the transmission mechanism, enabling the serrated bar 20 to move precisely. A moving block 21 is fixed to the outside of the serrated bar 20. The moving block 21 moves accordingly under the drive of the serrated bar 20, thereby realizing the connection between the parts. A connecting strip 22 is fixed at the center of the moving block 21, and fixing strips 23 are fixed on the front and rear sides of the connecting strip 22 respectively. The connecting plate 24 is fixed to the left side of the fixing strip 23. The fixing plate 25 is fixed to the front and rear edges of the connecting plate 24, thus fixing the parts together. The fixing plate 25 is fixed to the outside of the fixing plate 25. These fixing plates 26 clamp the steel bars, ensuring that the steel bars can be inserted into the sleeve more accurately, thereby ensuring that the axis of the steel bars can be perfectly aligned. In addition, in order to ensure the sealing and stability of the connection, sealing gaskets 5 are fixedly connected to the front and rear ends of the pipe body 1. The sealing gasket 5 has a feed groove 6 in the middle to facilitate the injection of grouting material. The left end of the operating box 17 is fixedly connected to the fixing ring 7. The fixing groove 8 is fixedly connected to the pipe body 1, ensuring the stability of the entire connection structure.

[0042] Reference Figure 1 , Figure 3 and Figure 6 The quick installation mechanism 2 includes a feed pipe 201, which is located on the left side of the pipe body 1. A valve 202 is rotatably connected to the front of the upper end of the feed pipe 201 to provide power to the device. A reverse threaded rod 203 is fixedly connected to the other end of the valve 202. Multiple threaded blocks 204 are slidably connected inside the feed pipe 201. The reverse threaded rod 203 is threadedly connected to the threaded blocks 204 and moves back and forth. A retaining ring 205 is fixedly connected to the bottom end of the multiple threaded blocks 204 for locking and fixing. Multiple springs 206 are fixedly connected to the right end of the feed pipe 201 for applying pressure and fixing. A retaining block 207 is fixedly connected to the other end of the springs 206. Protective strips 9 are fixedly connected to both the front and rear sides of the connecting strip 22. A protective groove 10 is opened in the middle of the protective strip 9.

[0043] Specifically, during the grouting operation for the shear wall rebar sleeve connection, to ensure the smooth progress of the grouting process, the feed pipe 201 and the delivery pipe 3 are precisely engaged to ensure a tight and accurate connection. Then, the interaction force between the spring 206 on the right side of the feed pipe 201 and the clamping block 207 is used for the first clamping and fixing to ensure the stability of the feed pipe 201. Subsequently, the valve 202 at the front end of the feed pipe 201 is operated, which drives the reverse threaded rod 203 to rotate synchronously. The rotation of the reverse threaded rod 203 will further drive the threaded block 204 to move back and forth, thereby achieving precise control of the connection structure. The movement of the threaded block 204 will drive the retaining ring 205 to engage and fix for the second time, making the entire grouting process faster and more convenient. Protective strips 9 are fixedly connected to both the front and rear sides of the connecting strip 22, and a protective groove 10 is specially opened in the middle to ensure the efficiency and safety of the shear wall rebar sleeve connection grouting operation.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The operation box 17 has a moving groove 11 on both the front and rear sides of the right end. A moving strip 12 is slidably connected inside the moving groove 11 for up and down movement. A protective cover 13 is fixedly connected to the right end of the moving strip 12 for protection. A pull ring 14 is fixedly connected to the top of the protective cover 13 for easy operation. A hinge 15 is fixedly connected to the bottom of the protective cover 13, and a protective plate 16 is fixedly connected to the bottom of the hinge 15.

[0045] Specifically, movable slots 11 are opened on the front and rear sides of the right end of the operation box 17. The movable slots 11 are slidably connected to the movable strips 12. The right end of the movable strips 12 is fixedly connected to a protective cover 13 to ensure the protection of the internal components during use. The top of the protective cover 13 is also fixed with a pull ring 14 for easy operation when needed. In addition, the bottom of the protective cover 13 is connected to it by a hinge 15. The bottom of the hinge 15 is fixedly connected to a protective plate 16, which further enhances the stability of the overall structure.

[0046] Working principle: When the shear wall steel reinforcement sleeve is connected to two points and grouting is performed simultaneously to fix the steel reinforcement, the valve 18 on the right side of the operating box 17 is rotated to drive the rotating gear 19 to rotate. The upper and lower sides of the operating box 17 are slidably connected to the sawtooth strip 20 and move up and down synchronously. The rotating gear 19 drives the sawtooth strip 20. The outer side of the sawtooth strip 20 is fixed with a moving block 21 to connect the parts. The middle of the moving block 21 is fixed with a connecting strip 22 to move synchronously. The front and back of the connecting strip 22 are fixed with a fixing strip 23. The left side of the fixing strip 23 is fixed with a connecting plate 24 to move synchronously. The front and back sides of the connecting plate 24 are fixed with a fixing plate 25 to fix the parts. The outside of the fixing plate 25 is fixed with a fixing piece 26 to clamp the steel reinforcement. This allows the steel reinforcement to be inserted into the sleeve more accurately and ensures that the axis of the steel reinforcement is aligned.

[0047] When the shear wall steel reinforcement sleeve is connected to two points for simultaneous grouting, the feed pipe 201 is engaged with the delivery pipe 3. The spring 206 on the right side of the feed pipe 201 interacts with the clamping block 207 to perform the first clamping and fixing. Rotating the valve 202 in front of the feed pipe 201 drives the reverse threaded rod 203 to rotate synchronously. The reverse threaded rod 203 drives the threaded block 204 to move back and forth. The threaded block 204 drives the retaining ring 205 to perform the second clamping and fixing, which achieves faster and more convenient installation.

[0048] 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 kind of assembly shear wall steel sleeve connects two points simultaneously grouting structure, including pipe body (1), it is characterized in that: The left end of the pipe body (1) is connected to both the front and rear sides of the conveying pipe (3), and the left end of the pipe body (1) is connected to the discharge pipe (4). An operation box (17) is provided on the right side of the pipe body (1). A valve (18) is rotatably connected to the right end of the operation box (17). A rotating gear (19) is fixedly connected to the other end of the valve (18). A serrated rack (20) is slidably connected to both the upper and lower ends of the operation box (17). The rotating gear (19) meshes with the serrated rack (20). The outer wall of the serrated rack (20) is fixedly connected to... The movable block (21) is fixedly connected to the middle of the movable block (21) with a connecting strip (22). The front and rear ends of the movable block (21) are fixedly connected with a fixing strip (23). The left end of the fixing strip (23) is fixedly connected with a connecting plate (24). The front and rear ends of the connecting plate (24) are fixedly connected with a fixing plate (25). The outer side of the fixing plate (25) is fixedly connected with a fixing piece (26). The left side of the tube body (1) is provided with a quick installation mechanism (2). The quick installation mechanism (2) is used for faster and more convenient installation.

2. The assembly shear wall reinforcement sleeve connection two-point simultaneous grouting structure according to claim 1, characterized in that: The quick installation mechanism (2) includes a feed pipe (201), which is located on the left side of the pipe body (1). A valve (202) is rotatably connected to the front of the upper end of the feed pipe (201). A reverse threaded rod (203) is fixedly connected to the other end of the valve (202). Multiple threaded blocks (204) are slidably connected inside the feed pipe (201). The reverse threaded rod (203) is threadedly connected to the threaded blocks (204). A retaining ring (205) is fixedly connected to the bottom end of the multiple threaded blocks (204). Multiple springs (206) are fixedly connected to the right end of the feed pipe (201). A retaining block (207) is fixedly connected to the other end of the springs (206).

3. The two-point simultaneous grouting structure for the rebar sleeve connection of an assembled shear wall according to claim 1, characterized in that: The front and rear ends of the tube (1) are fixedly connected with sealing gaskets (5), and a feed groove (6) is provided in the middle of the sealing gasket (5).

4. The two-point simultaneous grouting structure for assembling a shear wall steel sleeve connection according to claim 1, characterized in that: The left end of the operation box (17) is fixedly connected to a fixing ring (7), and a fixing groove (8) is provided in the middle of the fixing ring (7), and the fixing groove (8) is fixedly connected to the tube body (1).

5. The two-point simultaneous grouting structure for connecting steel reinforcement sleeves in an assembled shear wall according to claim 1, characterized in that: The front and rear sides of the connecting strip (22) are fixedly connected with protective strips (9), and a protective groove (10) is provided in the middle of the protective strip (9).

6. The two-point simultaneous grouting structure for assembling a shear wall steel sleeve connection according to claim 1, characterized in that: The operation box (17) has a moving groove (11) on both the front and rear sides of the right end, and a moving strip (12) is slidably connected inside the moving groove (11).

7. The two-point simultaneous grouting structure for assembling a shear wall steel sleeve connection according to claim 6, characterized in that: A protective cover (13) is fixedly connected to the right end of the moving strip (12), and a pull ring (14) is fixedly connected to the top end of the protective cover (13).

8. The assembled shear wall steel reinforcement sleeve connection two-point simultaneous grouting structure according to claim 7, characterized in that: The bottom of the protective cover (13) is fixedly connected to a hinge (15), and the bottom end of the hinge (15) is fixedly connected to a protective plate (16).

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