Grouting device for expansion joint of drainage tunnel

Abstract

The utility model relates to the technical field of grouting devices, and discloses a drainage tunnel expansion joint grouting device which comprises a supporting box and a grouting pipe, a supporting pipe is fixedly connected in the supporting box, a slurry storage tank is arranged at the top end of the supporting pipe, a mixing barrel is fixedly connected to the bottom end of the supporting pipe, a conveying pipe is fixedly connected in the mixing barrel, and a grouting pipe is arranged in the conveying pipe. A conveying pipe is arranged in the mixing cylinder, one end of the conveying pipe is fixedly connected with a hose, a flow limiting assembly is arranged in the mixing cylinder, one end of the hose is provided with a connecting assembly, the flow limiting assembly comprises a rotating column and a plurality of rotating plates, and the rotating column is rotationally connected into the mixing cylinder. According to the utility model, a polyurethane grouting material enters the mixing cylinder through the supporting pipe at the bottom of the slurry storage tank, the motor drives the rotating plate to rotate in the mixing cylinder, the rotating plate rotates to dynamically mix the material, the edge of the rotating plate continuously scrapes off adhered objects on the wall of the cylinder, and meanwhile, the material is blocked by the rotating plate and the discharge flow is regulated and controlled; and the effects of uniform mixing and quantitative discharging of the grouting material are achieved.

Description

Technical Field

[0001] This utility model relates to the field of grouting device technology, and in particular to a grouting device for expansion joints in drainage tunnels. Background Technology

[0002] As a key facility in water conservancy projects, the drainage tunnel plays a crucial role in regulating water levels and discharging floodwaters. However, with increasing service life and the influence of external environmental factors, cracks and leaks are prone to occur at the expansion joints of the drainage tunnel. If these problems are not addressed promptly, they will not only reduce the performance of the drainage tunnel but also threaten the safety of the entire water conservancy project. Therefore, grouting the expansion joints of the drainage tunnel is an important measure to ensure the safe operation of the water conservancy project. In practical engineering, the quality of the grouting material and the grouting effect directly affect the quality of the expansion joint treatment. High-quality grouting material needs to be uniformly mixed to ensure its stable performance. At the same time, precise quantitative dispensing can ensure accurate control of the grouting volume and avoid material waste or insufficient grouting. Therefore, developing a grouting device that can effectively mix and quantitatively dispense grouting material has significant practical implications.

[0003] Existing grouting devices for expansion joints in drainage tunnels typically employ a simple storage tank and conveying pipeline structure. The storage tank is used to store the grouting material, which is then conveyed to the grouting location by gravity or a simple pumping device.

[0004] However, existing grouting devices cannot effectively mix and quantitatively discharge grouting materials during the grouting process, which makes it easy for the materials to separate and settle during transportation. This results in the inability to guarantee the uniformity of the grouting materials, thus affecting the grouting effect. Moreover, traditional devices have difficulty controlling the flow rate of the materials and cannot accurately control the amount of grouting according to actual needs. In actual construction, there will be situations where excessive grouting leads to material waste, or insufficient grouting leads to incomplete treatment of expansion joints. Therefore, a grouting device for expansion joints in drainage tunnels is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a grouting device for expansion joints in drainage tunnels, which aims to improve the existing technology's inability to effectively mix and quantitatively discharge grouting materials during the grouting process, thus preventing the materials from easily stratifying and settling during transportation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A grouting device for expansion joints in drainage tunnels includes a support box and a grouting pipe. The support pipe is fixedly connected inside the support box. A grout storage tank is provided at the top of the support pipe. A mixing cylinder is fixedly connected at the bottom of the support pipe. A conveying pipe is fixedly connected inside the mixing cylinder. A flexible hose is fixedly connected at one end of the conveying pipe. A flow limiting component is provided inside the mixing cylinder. A connecting component is provided at one end of the flexible hose.

[0008] The current limiting component includes a rotating column and multiple rotating plates. The rotating column is rotatably connected inside the mixing cylinder, and the multiple rotating plates are fixedly connected to the outer wall of the rotating column in a ring array. A motor is fixedly connected to one side of the support box, and one end of the rotating column is connected to the output end of the motor.

[0009] As a further description of the above technical solution:

[0010] The connecting assembly includes a connector and a retaining ring. One end of the connector is fixedly connected to one end of the delivery pipe, and the inner wall of the retaining ring is fixedly connected to the outer wall of the connector.

[0011] As a further description of the above technical solution:

[0012] The grouting pipe input end is fixedly connected to a connecting pipe, and a collar is fixedly connected inside the connecting pipe.

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

[0014] The outer wall of the connecting pipe is slidably connected to a sliding sleeve, and the joint is slidably connected inside the collar.

[0015] As a further description of the above technical solution:

[0016] The sliding sleeve has a limiting groove inside and a hollow groove two inside.

[0017] As a further description of the above technical solution:

[0018] A spring is fitted on the outer wall of the connecting tube. The spring is located inside the limiting groove, and its two ends are fixedly connected to the sliding sleeve and the inside of the connecting tube, respectively.

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

[0020] The connecting pipe has a hollow groove inside and a retaining bead inside.

[0021] As a further description of the above technical solution:

[0022] The retaining bead engages with the retaining ring, and the retaining bead is slidably connected inside the first slot and the second slot.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, polyurethane grouting material enters the mixing cylinder through the bottom support pipe of the storage tank. The motor drives the rotating plate to rotate inside the mixing cylinder. On the one hand, the rotating plate dynamically mixes the material, and on the other hand, its edge continuously scrapes off the adhering material on the cylinder wall. At the same time, the discharge flow rate is controlled by the obstruction of the material by the rotating plate, thus achieving the effect of uniform mixing and quantitative discharge of grouting material. This solves the problem that it is impossible to effectively mix and quantitatively discharge grouting material during the grouting process, which makes the material prone to stratification and sedimentation during transportation, thereby improving the practicality of the grouting device.

[0025] 2. In this utility model, by moving the sliding sleeve to slide along the outer wall of the connecting pipe to compress the spring, the locking ball on the retaining ring is released. At this time, the connecting pipe can be pulled out of the joint to complete the disassembly. During installation, after the connecting pipe is inserted into the joint, the retaining ring squeezes the retaining ball to slide into the empty groove, and the collar simultaneously engages the joint. After the sliding sleeve is released, the spring rebounds and drives the sliding sleeve to reset. The retaining ball is accurately engaged in the retaining ring groove through the guide of the limiting groove, realizing the rapid connection and separation of the grouting pipe and the hose, thereby improving the flexibility of the grouting device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a grouting device for expansion joints in a drainage tunnel proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the support box of a grouting device for expansion joints in a drainage tunnel, as proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the rotating plate structure of a grouting device for expansion joints in a drainage tunnel, as proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the internal structure of the connecting pipe of a grouting device for expansion joints in a drainage tunnel, as proposed in this utility model.

[0030] Legend:

[0031] 1. Support box; 2. Grouting pipe; 3. Support pipe; 4. Grout storage tank; 5. Mixing cylinder; 6. Conveying pipe; 7. Motor; 8. Rotating column; 9. Rotating plate; 10. Connector; 11. Connecting pipe; 12. Collar; 13. Snap ring; 14. Sliding sleeve; 15. Limiting groove; 16. Spring; 17. Empty groove one; 18. Clamping bead; 19. Empty groove two; 20. Hoses. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3 The present invention provides an embodiment of a grouting device for expansion joints in drainage tunnels, comprising a support box 1 and a grouting pipe 2. A support pipe 3 is fixedly connected inside the support box 1. The support pipe 3 not only physically supports the grout storage tank 4 and the mixing cylinder 5, but also serves to transport the grouting material. The top of the support pipe 3 is provided with a grout storage tank 4, which is used to store the polyurethane grouting material to be injected. The bottom of the support pipe 3 is fixedly connected with a mixing cylinder 5. A conveying pipe 6 is fixedly connected inside the mixing cylinder 5. A hose 20 is fixedly connected to one end of the conveying pipe 6. The hose 20 transports the mixed grouting material to the target grouting location through the grouting pipe 2. A flow-limiting component is provided inside the mixing cylinder 5, and a connecting component is provided at one end of the hose 20.

[0034] The flow-limiting component includes a rotating column 8 and multiple rotating plates 9. The rotating column 8 is rotatably connected inside the mixing cylinder 5, and the multiple rotating plates 9 are fixedly connected to the outer wall of the rotating column 8 in a ring array. The rotation of the rotating plates 9 not only stirs the material, but also scrapes off the residual material on the inner wall of the mixing cylinder 5, ensuring the efficient flow and uniform mixing of the grouting material. A motor 7 is fixedly connected to one side of the support box 1, and one end of the rotating column 8 is connected to the output end of the motor 7. The motor 7 is responsible for driving the rotation of the rotating column 8, thereby ensuring that the grouting material in the mixing cylinder 5 is fully stirred and improving the grouting efficiency.

[0035] Specifically, when using the expansion joint grouting device for the drainage tunnel, the polyurethane grouting material is first poured into the storage tank 4. The bottom of the storage tank 4 is equipped with a support pipe 3. The support pipe 3 not only provides support but also transports the material to the mixing cylinder 5 through its internal flow channel. After the material flows into the mixing cylinder 5 from the support pipe 3, the mixing process begins. Driven by the motor 7, which is connected to the rotating column 8 through its output end, the rotating column 8 rotates inside the mixing cylinder 5. Multiple rotating plates 9 are connected to its outer wall. During the rotation, the rotating plates 9 can fully mix the grouting material and scrape off the material adhering to the inner wall of the mixing cylinder 5, thus avoiding the impact of material adhesion on the conveying efficiency. The rotation of the multiple rotating plates 9 can effectively control the flow rate of the material. When the rotating plate 9 rotates, the liquid grouting material is continuously stirred and flowed under its action, ensuring that the material is fully mixed before entering the grouting pipe 2, and that the viscosity and flowability of the material are well controlled, thereby ensuring the smooth progress of the grouting operation. During the operation of the grouting pipe 2, it is necessary to align the grouting pipe 2 with the grouting position according to the actual construction situation. At this time, the hose 20 is connected to the other end of the grouting pipe 2. The hose 20 is made of a material with high flexibility and corrosion resistance to adapt to different working environments. The grouting pipe 2 delivers the mixed grouting material to the target grouting location through the delivery pipe 6. During this process, the grouting device can control the grouting flow rate in real time to ensure the construction effect of grouting.

[0036] Reference Figure 1 and Figure 4 The connecting assembly includes a connector 10 and a retaining ring 13. One end of the connector 10 is fixedly connected to one end of the delivery pipe 6. The inner wall of the retaining ring 13 is fixedly connected to the outer wall of the connector 10. A connecting pipe 11 is fixedly connected to the input end of the grouting pipe 2. A collar 12 is fixedly connected inside the connecting pipe 11. A sliding sleeve 14 is slidably connected to the outer wall of the connecting pipe 11. The connector 10 is slidably connected inside the collar 12. A limit groove 15 is formed inside the sliding sleeve 14. A second empty groove 19 is formed inside the sliding sleeve 14. A spring is fitted on the outer wall of the connecting pipe 11. Spring 16 is set inside the limiting groove 15. The two ends of spring 16 are fixedly connected to the sliding sleeve 14 and the connecting tube 11 respectively. The elasticity of spring 16 drives the sliding sleeve 14 to quickly return to its original position. The connecting tube 11 has a first slot 17 and a retaining bead 18. The retaining bead 18 engages with the retaining ring 13. The engagement of retaining bead 18 and retaining ring 13 ensures the tightness and safety of the connection. The retaining bead 18 is slidably connected inside the first slot 17 and the second slot 19.

[0037] Specifically, when it is necessary to disassemble and connect the grouting pipe 2 and the hose 20, the sliding sleeve 14 needs to be moved first so that it can slide on the outer wall of the connecting pipe 11. The sliding of the sliding sleeve 14 will compress the spring 16. The function of the spring 16 is to provide a certain rebound force so that the retaining bead 18 inside the connecting pipe 11 can be automatically released during disassembly. At this time, the connecting pipe 11 will be removed from the outer wall of the connector 10 to complete the disassembly. During installation, one end of the connecting pipe 11 is inserted into the outer wall of the connector 10 of the hose 20, and the retaining ring 13 presses against the retaining bead 18 to allow it to enter smoothly. The connecting pipe 11 is inserted into the hollow groove 17 inside the connecting pipe 11. In addition, the collar 12 inside the connecting pipe 11 will be inserted into the outer wall of the joint 10 during installation to form a sealed connection. During this process, after the sliding sleeve 14 is released, the sliding sleeve 14 will be reset under the push of the spring 16 through the force relief and rebound effect of the limiting groove 15, so that the retaining ball 18 is pressed and fixed on the outer wall of the retaining ring 13, achieving a firm connection effect. The entire connection and disassembly process is simple to operate and can be disassembled and connected efficiently, ensuring that different work requirements can be flexibly met during grouting operations.

[0038] Working principle: When using the expansion joint grouting device for the drainage tunnel, the polyurethane grouting material is first poured into the storage tank 4. The material is then fed into the mixing cylinder 5 through the support pipe 3 at the bottom of the storage tank 4. The material is then conveyed to the hose 20 and the injection pipe 2 through the conveying pipe 6 at the bottom of the mixing cylinder 5. At this time, the injection pipe 2 is aligned with the grouting position for grouting. During this process, the rotating column 8 can be driven to rotate inside the mixing cylinder 5 through the output end of the motor 7. The rotating column 8 is driven to rotate the rotating plate 9 connected to the outer wall inside the mixing cylinder 5, so that the rotating plate 9 can mix the material during the conveying process. At the same time, the material adhering to the inner wall of the mixing cylinder 5 is scraped off. Furthermore, through the rotation of multiple rotating plates 9, the flow rate of the material can be effectively controlled, thereby achieving the effect of mixing and quantitatively discharging the grouting material.

[0039] When it is necessary to disconnect and connect the grouting pipe 2 and the hose 20, first, move the sliding sleeve 14 to slide it on the outer wall of the connecting pipe 11. At the same time, the sliding sleeve 14 compresses the spring 16, thereby releasing the retaining bead 18 inside the connecting pipe 11. At this time, the connecting pipe 11 connected to the input end of the grouting pipe 2 is removed from the outer wall of the connector 10 to complete the disassembly. During installation, the connecting pipe 11 is inserted into the outer wall of the connector 10 at one end of the hose 20. During this process, the retaining ring 13 on the outer wall of the connector 10 squeezes the retaining bead 18, causing the retaining bead 18 to slide into the empty groove 17 inside the connecting pipe 11. At the same time, the collar 12 inside the connecting pipe 11 is inserted into the outer wall of the connector 10 to complete the connection. Then, release the sliding sleeve 14, and the limiting groove 15 releases the force and rebounds, thereby driving the sliding sleeve 14 to reset and press the retaining bead 18, so that the retaining bead 18 is locked on the outer wall of the retaining ring 13 to complete the fixation, thereby achieving the effect of easy connection and disassembly of the connecting pipe 11 and the hose 20.

[0040] 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 grouting device for water outlet hole expansion joint, comprising a support box (1) and a grouting pipe (2), characterized in that: The support box (1) is internally fixedly connected with a support pipe (3), the top end of the support pipe (3) is provided with a slurry storage tank (4), the bottom end of the support pipe (3) is fixedly connected with a mixing cylinder (5), the mixing cylinder (5) is internally fixedly connected with a conveying pipe (6), one end of the conveying pipe (6) is fixedly connected with a hose (20), the mixing cylinder (5) is internally provided with a flow limiting assembly, and one end of the hose (20) is provided with a connecting assembly. The flow limiting assembly comprises a rotating column (8) and a plurality of rotating plates (9), the rotating column (8) is rotatably connected in the mixing cylinder (5), a plurality of rotating plates (9) are fixedly connected in an annular array on the outer wall of the rotating column (8), one side of the support box (1) is fixedly connected with a motor (7), and one end of the rotating column (8) is connected with the output end of the motor (7).

2. The water outlet hole expansion joint grouting device according to claim 1, characterized in that: The connecting assembly comprises a joint (10) and a clasp ring (13), one end of the joint (10) is fixedly connected with one end of the conveying pipe (6), and the inner wall of the clasp ring (13) is fixedly connected with the outer wall of the joint (10).

3. The water outlet tunnel expansion joint grouting device according to claim 2, characterized in that: The input end of the grouting pipe (2) is fixedly connected with a connecting pipe (11), and the inner wall of the connecting pipe (11) is fixedly connected with a thimble (12).

4. The water outlet tunnel expansion joint grouting device according to claim 3, characterized in that: The outer wall of the connecting pipe (11) is slidably connected with a sliding sleeve (14), and the joint (10) is slidably connected in the thimble (12).

5. The water outlet tunnel expansion joint grouting device according to claim 4, characterized in that: The inner wall of the sliding sleeve (14) is provided with a limiting groove (15), and the inner wall of the sliding sleeve (14) is provided with a second air groove (19).

6. The water outlet tunnel expansion joint grouting device according to claim 5, characterized in that: The outer wall of the connecting pipe (11) is provided with a spring (16), the spring (16) is arranged in the limiting groove (15), and the spring (16) is fixedly connected with the inner wall of the sliding sleeve (14) and the inner wall of the connecting pipe (11) respectively.

7. The water outlet hole expansion joint grouting device according to claim 6, characterized in that: The inner wall of the connecting pipe (11) is provided with a first air groove (17), and the inner wall of the connecting pipe (11) is provided with a clamping bead (18).

8. The water outlet tunnel expansion joint grouting device according to claim 7, characterized in that: The clamping bead (18) is clamped with the clasp ring (13), and the clamping bead (18) is slidably connected in the first air groove (17) and the second air groove (19).

Images