A dam seepage prevention grouting device

Abstract

This utility model provides a grouting device for dam seepage prevention, relating to the field of dam repair technology. It includes: a grout storage cylinder; a piston connected inside the grout storage cylinder, a top plate fixedly installed at the top of the grout storage cylinder, and the top of the piston penetrating inside the top plate; a grouting insertion pipe connected to the bottom of the grout storage cylinder, the grouting insertion pipe being of different lengths; a rotating sleeve, a sliding sleeve, and a spring fitted around the outside of the grout storage cylinder from top to bottom, the sliding sleeve being located between the rotating sleeve and the spring, and the rotating sleeve being connected to the grouting insertion pipe. The grouting insertion pipe of this utility model is connected to the grout storage cylinder by an insertion method, making the installation and removal of the grouting insertion pipe simpler, allowing for replacement of the grouting insertion pipe according to different dam crack depths, better meeting actual usage needs; when the grouting insertion pipe is inserted into the grout discharge pipe, the end of the connecting block is located at the bend of the L-shaped connecting groove. Rotating the rotating sleeve moves the connecting block to the innermost end of the L-shaped connecting groove, achieving a fixing effect on the grouting insertion pipe and ensuring a firm connection between the grouting insertion pipe and the grout storage cylinder.

Description

Technical Field

[0001] This utility model relates to the field of dam repair technology, and in particular to a dam seepage prevention grouting device. Background Technology

[0002] As vital flood control and water-retaining structures in water conservancy projects, dams play an irreplaceable and crucial role in safeguarding people's lives and property, maintaining regional ecological balance, and promoting economic and social development. Dams are situated in complex hydrogeological environments and are subject to scouring, erosion, and seepage from water flow, as well as the influence of geological tectonic movements, temperature changes, and construction quality. Therefore, cracking in dams is a common phenomenon. To prevent leakage at these cracks, grouting reinforcement is necessary.

[0003] In the current application of existing seepage prevention grouting devices for reinforcing cracks in dams, bolts are generally used to ensure a stable connection between the grouting tube and the main body of the device. When replacing the tube according to the crack depth, tools must be used to loosen the bolts one by one to complete the replacement of the grouting tube, making the whole operation process quite cumbersome. Utility Model Content

[0004] This utility model relates to a seepage prevention grouting device for dams, which solves the problem that existing seepage prevention grouting devices for reinforcing dam cracks usually use bolts to fix the grouting pipe to the main body of the device in order to ensure the firmness of the connection. When replacement is required later according to the crack depth, the bolts must be loosened with tools to replace the grouting pipe, which is a cumbersome process.

[0005] In a first aspect, this utility model provides a grouting device for seepage prevention in dams, specifically comprising: a grout storage cylinder, a piston, a top plate, a grouting pipe, a rotating sleeve, a sliding sleeve, and a spring; the piston is connected inside the grout storage cylinder, and a top plate is fixedly installed on the top of the grout storage cylinder, with the top of the piston penetrating inside the top plate; a grouting pipe is connected to the bottom of the grout storage cylinder, and the grouting pipe is divided into different lengths; a rotating sleeve, a sliding sleeve, and a spring are fitted on the outside of the grout storage cylinder from top to bottom, with the sliding sleeve located between the rotating sleeve and the spring, and the rotating sleeve connected to the grouting pipe.

[0006] Furthermore, the slurry storage cylinder is symmetrically provided with slurry inlets near the top, and a slurry discharge pipe is provided at the bottom of the slurry storage cylinder, with the top end of the grouting pipe inserted into the slurry discharge pipe.

[0007] Furthermore, the piston is slidably connected to the inside of the grout storage cylinder. A push rod is provided at the top of the piston, and a guide hole is provided inside the top plate. The push rod slides through the guide hole. The grouting pipe is inserted into the pre-drilled hole at the crack in the dam. Pulling the push rod up moves the piston to its highest point above the grout inlet. Cement mortar is poured into the grout storage cylinder through the grout inlet. The push rod is then pressed down, and the piston applies pressure to the cement mortar, causing the cement mortar to be injected into the crack in the dam through the grouting pipe.

[0008] Furthermore, the grout discharge pipe is symmetrically provided with guide grooves on its outside, and the grouting insertion pipe is symmetrically provided with connecting blocks near its top end, the connecting blocks being slidably connected within the guide grooves.

[0009] Furthermore, the rotating sleeve is rotatably connected to the grout discharge pipe, and an L-shaped connecting groove is arranged around the outside of the rotating sleeve. The L-shaped connecting groove is connected to the guide groove, and the end of the connecting block is slidably connected in the L-shaped connecting groove. The grouting insertion pipe is connected to the grout storage cylinder by insertion, making the grouting insertion pipe easier to assemble and disassemble. When the grouting insertion pipe is inserted into the grout discharge pipe, the end of the connecting block is located at the bend of the L-shaped connecting groove. Rotating the rotating sleeve moves the connecting block to the innermost end of the L-shaped connecting groove, which has the effect of fixing the grouting insertion pipe.

[0010] Furthermore, the sliding sleeve is slidably connected to the slurry discharge pipe, and guide blocks are symmetrically arranged on the outside of the slurry discharge pipe. Movable holes are symmetrically arranged on the outside of the sliding sleeve. The guide blocks are slidably connected to the movable holes. One end of the spring is in contact with the slurry storage cylinder, and the other end of the spring is in contact with the sliding sleeve.

[0011] Furthermore, the rotating sleeve is symmetrically provided with limiting grooves on its outer side, and the sliding sleeve is symmetrically provided with insert blocks on its outer side. The insert blocks are inserted into the limiting grooves. When the end of the connecting block is at the innermost end of the L-shaped connecting groove, the sliding sleeve moves and resets under the influence of the spring thrust, so that the insert blocks are inserted into the limiting grooves, thereby achieving the effect of limiting and locking the rotating sleeve.

[0012] This utility model provides a grouting device for seepage prevention in dams, which has the following beneficial effects: In use, the grouting pipe is inserted into a pre-drilled hole at the crack in the dam. The push rod is pulled up, and the piston moves to its highest point above the grout inlet. Cement mortar is poured into the storage cylinder through the grout inlet. The push rod is then pressed down, and the piston applies pressure to the cement mortar, causing the cement mortar to be injected into the crack in the dam through the grouting pipe. This fills and repairs the crack in the dam, ensuring the dam's seepage prevention performance.

[0013] In addition, the grouting pipe is connected to the grout storage cylinder by insertion, which makes the installation and removal of the grouting pipe easier. This allows the grouting pipe to be replaced according to the different depths of the cracks in the dam, better meeting the needs of actual use. When the grouting pipe is inserted into the grout discharge pipe, the end of the connecting block is located at the bend of the L-shaped connecting groove. By rotating the rotating sleeve, the connecting block is moved to the innermost end of the L-shaped connecting groove, which fixes the grouting pipe and ensures the firmness of the connection between the grouting pipe and the grout storage cylinder.

[0014] In addition, when the end of the connecting block is at the innermost end of the L-shaped connecting groove, the sliding sleeve moves and resets under the influence of the spring thrust, so that the insert block is inserted into the limiting groove, which plays a limiting and locking role for the rotating sleeve and ensures the fixing effect of the rotating sleeve on the grouting pipe.

[0015] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram: Figure 1 A schematic diagram of the overall axonometric structure of this application is shown; Figure 2 A schematic diagram of the disassembled structure of the slurry storage cylinder, piston, and top plate of this application is shown; Figure 3 A schematic diagram of the axial structure of the grouting cannula of this application is shown; Figure 4 A schematic diagram of the disassembled structure of the slurry storage cylinder, rotating sleeve, and sliding sleeve of this application is shown.

[0019] Figure label: 1. Grout storage cylinder; 11. Grout inlet; 12. Grout discharge pipe; 121. Guide groove; 122. Guide block; 2. Piston; 21. Push rod; 3. Top plate; 31. Guide hole; 4. Grouting insertion pipe; 41. Connecting block; 5. Rotating sleeve; 51. L-shaped connecting groove; 52. Limiting groove; 6. Sliding sleeve; 61. Movable hole; 62. Insertion block; 7. Spring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1 to 4 : This utility model proposes a grouting device for seepage prevention in dams, comprising: a grout storage cylinder 1, a piston 2, a top plate 3, a grouting pipe 4, a rotating sleeve 5, a sliding sleeve 6, and a spring 7; the piston 2 is connected inside the grout storage cylinder 1, and the top plate 3 is fixedly installed on the top of the grout storage cylinder 1, with the top of the piston 2 penetrating inside the top plate 3; the grouting pipe 4 is connected to the bottom of the grout storage cylinder 1, and the grouting pipe 4 is divided into different lengths; the rotating sleeve 5, the sliding sleeve 6, and the spring 7 are fitted on the outside of the grout storage cylinder 1 from top to bottom, with the sliding sleeve 6 located between the rotating sleeve 5 and the spring 7, and the rotating sleeve 5 connected to the grouting pipe 4; grout inlets 11 are symmetrically arranged near the top of the grout storage cylinder 1, and grout discharge pipes are arranged at the bottom of the grout storage cylinder 1. 12. The top end of the grouting pipe 4 is inserted into the grout discharge pipe 12; the piston 2 is slidably connected to the inside of the grout storage cylinder 1, and a push rod 21 is provided on the top of the piston 2. A guide hole 31 is provided inside the top plate 3, and the push rod 21 slides through the guide hole 31; the grouting pipe 4 is inserted into the pre-drilled hole at the crack of the dam, the push rod 21 is pulled up, and the piston 2 moves to the top of the hole above the grout inlet 11. Cement mortar is poured into the grout storage cylinder 1 through the grout inlet 11, and the push rod 21 is pressed down. The piston 2 applies pressure to the cement mortar, so that the cement mortar is injected into the crack of the dam through the grouting pipe 4, which has the effect of filling and repairing the crack of the dam and ensuring the seepage prevention performance of the dam.

[0022] In this embodiment of the utility model, guide grooves 121 are symmetrically arranged on the outside of the grout discharge pipe 12, and connecting blocks 41 are symmetrically arranged near the top of the grouting insertion pipe 4. The connecting blocks 41 are slidably connected in the guide grooves 121. The rotating sleeve 5 is rotatably connected to the grout discharge pipe 12. An L-shaped connecting groove 51 is arranged around the outside of the rotating sleeve 5. The L-shaped connecting groove 51 is connected to the guide grooves 121, and the end of the connecting block 41 is slidably connected in the L-shaped connecting groove 51. Using the above technical solution, the grouting pipe 4 is connected to the grout storage cylinder 1 by insertion, which makes the grouting pipe 4 easier to disassemble and assemble, so that the grouting pipe 4 can be replaced according to the different depths of the dam cracks, better meeting the actual needs of use; when the grouting pipe 4 is inserted into the grout discharge pipe 12, the end of the connecting block 41 is located at the bend of the L-shaped connecting groove 51. By rotating the rotating sleeve 5, the connecting block 41 is moved to the innermost end of the L-shaped connecting groove 51, which fixes the grouting pipe 4 and ensures the firmness of the connection between the grouting pipe 4 and the grout storage cylinder 1.

[0023] In Example 2, based on Example 1, the sliding sleeve 6 is slidably connected to the slurry discharge pipe 12, and guide blocks 122 are symmetrically arranged on the outside of the slurry discharge pipe 12. Movable holes 61 are symmetrically arranged on the outside of the sliding sleeve 6. The guide blocks 122 are slidably connected to the movable holes 61. One end of the spring 7 is in contact with the slurry storage cylinder 1, and the other end of the spring 7 is in contact with the sliding sleeve 6. Limit grooves 52 are symmetrically arranged on the outside of the rotating sleeve 5, and insertion blocks 62 are symmetrically arranged on the outside of the sliding sleeve 6. The insertion blocks 62 are inserted into the limit grooves 52. Using the above technical solution, when the end of the connecting block 41 is at the innermost end of the L-shaped connecting groove 51, the sliding sleeve 6 moves and resets under the influence of the spring 7, so that the insert block 62 is inserted into the limiting groove 52, which plays a limiting and locking role on the rotating sleeve 5, and ensures the fixing effect of the rotating sleeve 5 on the grouting insertion pipe 4.

[0024] The working principle of this embodiment is as follows: First, a grouting pipe 4 of appropriate length is selected and connected to the grout storage cylinder 1 by insertion. When the grouting pipe 4 is inserted into the grout discharge pipe 12, the end of the connecting block 41 is located at the bend of the L-shaped connecting groove 51. The rotating sleeve 5 is rotated to move the connecting block 41 to the innermost end of the L-shaped connecting groove 51, thereby fixing the grouting pipe 4. When the end of the connecting block 41 is at the innermost end of the L-shaped connecting groove 51, the sliding sleeve 6 moves and resets under the influence of the spring 7, allowing the insert block 62 to be inserted into the limiting groove. Within 52, it serves to limit and lock the rotating sleeve 5, ensuring the fixing effect of the rotating sleeve 5 on the grouting pipe 4; finally, the grouting pipe 4 is inserted into the pre-drilled hole at the crack of the dam, the push rod 21 is pulled up, the piston 2 moves to the top higher than the grout inlet 11, the cement mortar is poured into the grout storage cylinder 1 through the grout inlet 11, and the push rod 21 is pressed down, the piston 2 applies pressure to the cement mortar, so that the cement mortar is injected into the crack of the dam through the grouting pipe 4, which has the effect of filling and repairing the crack of the dam. The operation is convenient.

[0025] The following points should be noted in this article: 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0026] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0027] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A dam seepage prevention grouting device, comprising: The grout storage cylinder (1), piston (2), top plate (3), grouting tube (4), rotating sleeve (5), sliding sleeve (6) and spring (7) are characterized in that the piston (2) is connected inside the grout storage cylinder (1), the top plate (3) is fixedly installed on the top of the grout storage cylinder (1), and the top of the piston (2) passes through the top plate (3); the grouting tube (4) is connected to the bottom of the grout storage cylinder (1), and the grouting tube (4) is divided into different lengths; the rotating sleeve (5), sliding sleeve (6) and spring (7) are fitted on the outside of the grout storage cylinder (1) from top to bottom, the sliding sleeve (6) is located between the rotating sleeve (5) and the spring (7), and the rotating sleeve (5) is connected to the grouting tube (4).

2. The dam seepage prevention grouting device according to claim 1, characterized in that, The slurry storage cylinder (1) is symmetrically provided with slurry inlets (11) near the top, and a slurry discharge pipe (12) is provided at the bottom of the slurry storage cylinder (1). The top end of the grouting pipe (4) is inserted into the slurry discharge pipe (12).

3. The dam seepage prevention grouting device according to claim 1, characterized in that, The piston (2) is slidably connected to the inside of the slurry storage cylinder (1). A push rod (21) is provided on the top of the piston (2), and a guide hole (31) is provided inside the top plate (3). The push rod (21) slides through the guide hole (31).

4. A dam seepage prevention grouting device according to claim 2, characterized in that, The grout discharge pipe (12) is symmetrically provided with guide grooves (121) on the outside, and the grouting insertion pipe (4) is symmetrically provided with connecting blocks (41) near the top, and the connecting blocks (41) are slidably connected in the guide grooves (121).

5. A dam seepage prevention grouting device according to claim 2, characterized in that, The rotating sleeve (5) is rotatably connected to the slurry discharge pipe (12). An L-shaped connecting groove (51) is arranged around the outside of the rotating sleeve (5). The L-shaped connecting groove (51) is connected to the guide groove (121). The end of the connecting block (41) is slidably connected in the L-shaped connecting groove (51).

6. A dam seepage prevention grouting device according to claim 2, characterized in that, The sliding sleeve (6) is slidably connected to the slurry discharge pipe (12). The slurry discharge pipe (12) is symmetrically provided with guide blocks (122) on the outside. The sliding sleeve (6) is symmetrically provided with movable holes (61) on the outside. The guide blocks (122) are slidably connected to the movable holes (61). One end of the spring (7) is in contact with the slurry storage cylinder (1), and the other end of the spring (7) is in contact with the sliding sleeve (6).

7. A dam seepage prevention grouting device according to claim 1, characterized in that, The rotating sleeve (5) is symmetrically provided with limiting grooves (52) on the outside, and the sliding sleeve (6) is symmetrically provided with inserts (62) on the outside, and the inserts (62) are inserted into the limiting grooves (52).

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