Sleeve valve pipe grouting device suitable for sandy gravel stratum

Abstract

The utility model relates to the field of sleeve valve pipe grouting, and discloses a sleeve valve pipe grouting device suitable for sandy gravel stratum.The sleeve valve pipe grouting device comprises a base layer, a plurality of mounting holes are formed in the top face of the base layer, sleeve valve pipes are arranged in the mounting holes, grouting pipes are arranged in the sleeve valve pipes, and the grouting pipes are arranged in the sleeve valve pipes. A grouting mechanism is arranged on the outer surface of the grouting pipe, a plurality of sealing rubber cups are fixedly installed on the portions, above and below the grouting mechanism, of the outer surface of the grouting pipe, a limiting ring block is arranged on the top face of the sleeve valve pipe, and a circular limiting hole is formed in the middle of the top face of the limiting ring block. The grouting pipe can be limited, it is ensured that the grouting pipe cannot deviate during vertical movement grouting, stability and the sealing effect of the sealing rubber cups are improved, meanwhile, the multiple sealing rubber cups are arranged, grout can be effectively controlled to be in the area needing grouting, it is prevented that the grout enters the bottom of the sleeve valve pipe to affect follow-up cleaning of the sleeve valve pipe, and therefore convenience is improved.

Description

Technical Field

[0001] This application belongs to the field of sleeve valve grouting technology, specifically a sleeve valve grouting device suitable for sand and gravel formations. Background Technology

[0002] During foundation pit construction, protecting the existing substructure from construction disturbance is crucial. Traditional grouting reinforcement methods face challenges in certain situations, such as gravel strata, where it is difficult to effectively control the grouting volume and direction, thus affecting the reinforcement effect and the safety of the existing structure. Sleeve valve pipe grouting is a grouting technique that injects grouting materials (such as cement grout, chemical grout, etc.) into the soil or structure through sleeve valve pipes (i.e., pipes with valves) to improve their physical properties or fill voids. The sleeve valve pipe design allows for precise control of the grouting direction and volume, ensuring that the grout flows accurately into the areas requiring reinforcement. This increases the density of the strata, improves the soil's bearing capacity, and thus solves the problem of unstable foundations. At the same time, sleeve valve pipe grouting can also fill voids and cracks in the soil, enhancing the overall stability of the soil and reducing the risk of collapse.

[0003] For example, utility model patent CN220166925U discloses a sleeve valve pipe grouting structure. The grouting pipe has a sealing ring fitted onto its body to prevent backflow of grout within the sleeve valve pipe's cavity. The bottom end of the grouting pipe has a grouting cylinder for discharging cement slurry from the pipe's cavity. A sealing device is installed inside the grouting pipe's cavity to contact the inner wall of the sleeve valve pipe's cavity. During grouting, cement slurry is continuously injected through the grouting pipe, increasing the pressure inside. This causes the operating rod to move, pulling the rubber gasket against the inner wall of the sleeve valve pipe and sealing it to prevent backflow during grouting. When the grouting pipe needs to move upwards, the injection of cement slurry stops, reducing the pressure. At this time, under the elastic action of the spring, the rubber gasket retracts into the groove of the annular groove, reducing friction between the sealing ring's edge and the inner wall of the sleeve valve pipe, thus increasing the sealing ring's service life.

[0004] However, it was discovered during actual use that the device allows external grout to enter through the grouting pipe and be sprayed out through the grouting cylinder, thus achieving grouting operations on soft soil and gravel layers and improving the structural stability of soft soil and gravel layers.

[0005] However, since the sealing ring of this device is mostly made of rubber, when the grouting pipe moves up and down inside the sleeve valve pipe for grouting, the lack of effective limiting of the grouting pipe causes the sealing ring to not fit tightly against the inner wall of the sleeve valve pipe when the grouting pipe deviates during the movement. This causes the grout to overflow, and the grout sprayed from the grouting cylinder of this device will also fill the inside of the sleeve valve pipe. This makes it difficult to clean and reuse the sleeve valve pipe. Therefore, a grouting device for sleeve valve pipes suitable for sand and gravel strata is provided. Utility Model Content

[0006] The purpose of this application is to provide a sleeve valve grouting device suitable for sand and gravel formations in order to solve the problems mentioned above.

[0007] The technical solution adopted in this application is as follows: A sleeve valve pipe grouting device suitable for sand and gravel strata includes a base layer. The top surface of the base layer has multiple mounting holes, and each of the mounting holes is equipped with a sleeve valve pipe. A grouting pipe is installed inside the sleeve valve pipe. A grouting mechanism is installed on the outer surface of the grouting pipe. Multiple sealing rubber cups are fixedly installed on the outer surface of the grouting pipe above and below the grouting mechanism. A limiting ring block is provided on the top surface of the sleeve valve pipe. A circular limiting hole is opened in the middle of the top surface of the limiting ring block. One end of the grouting pipe passes through the interior of the circular limiting hole. Two fixing holes I are symmetrically opened on the outer surface of the limiting ring block. Two fixing holes II are symmetrically opened near the top outer surface of the sleeve valve pipe, corresponding to the fixing holes I. An insert rod is installed inside the fixing hole I. One end of the insert rod passes through the interior of fixing hole I and fixing hole II.

[0008] In a preferred embodiment, the grouting mechanism includes a grout discharge hole, a circular groove, a sleeve valve sleeve, and an injection hole. The outer surface of the grouting pipe has multiple grout discharge holes arranged in a circumferential array. The grout discharge holes are located between multiple sealing rubber cups. The outer surface of the sleeve valve pipe has a circular groove. The sleeve valve sleeve is disposed inside the circular groove. The inner wall of the circular groove has an injection hole.

[0009] In a preferred embodiment, a sleeve material is provided inside the mounting hole.

[0010] In a preferred embodiment, a tapered end is fixedly mounted on the bottom surface of the sleeve valve tube.

[0011] In a preferred embodiment, a connecting flange is fixedly installed on the outer surface of the grouting pipe near its top end.

[0012] In a preferred embodiment, the outer surface of the sleeve valve tube is provided with a plurality of circular grooves arranged in an equally spaced array, and each of the plurality of circular grooves is provided with a sleeve valve sleeve.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1. In this application, due to the adoption of the above-mentioned scheme, when grout with a certain external pressure enters through the grouting pipe, it will be discharged through the grout discharge hole, thus being located between multiple sealing rubber cups. In this way, the grout will not move towards the bottom of the sleeve valve pipe. At this moment, the grout discharged between the sealing rubber cups will push open the rubber sleeve valve sleeve and then be discharged through the grouting hole. This design facilitates directional grouting operations in soft soil layers and gravel layers. The device can limit the grouting pipe through the limiting ring block to ensure that it will not deviate when moving up and down for grouting, thereby improving stability and the sealing effect of the sealing rubber cups. At the same time, the setting of multiple sealing rubber cups can effectively control the grout in the area that needs to be grouted, preventing the grout from entering the bottom of the sleeve valve pipe and affecting its subsequent cleaning, thereby improving convenience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a schematic diagram of the sleeve valve tube without installation in this application;

[0017] Figure 3 For this application Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 For this application Figure 1 Enlarged structural diagram at point B.

[0019] The markings in the diagram are: 1. Base layer; 2. Mounting hole; 3. Sleeve valve pipe; 4. Grouting pipe; 5. Grouting mechanism; 6. Sealing rubber cup; 7. Limiting ring block; 8. Circular limiting hole; 9. Fixing hole one; 10. Fixing hole two; 11. Insert rod; 12. Grout discharge hole; 13. Circular groove; 14. Sleeve valve sleeve; 15. Grouting hole; 16. Shell material; 17. Conical end; 18. Connecting flange. Detailed Implementation

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

[0021] refer to Figure 1 , Figure 2 and Figure 3A sleeve valve pipe grouting device suitable for sand and gravel strata includes a base layer 1. The top surface of the base layer 1 has multiple mounting holes 2. The mounting holes 2 are filled with casing material 16, and each mounting hole 2 is filled with a sleeve valve pipe 3. The operator first uses a drilling rig to drill holes at appropriate locations, and then fills the holes with casing material 16. After the casing material 16 is filled, the operator can install the sleeve valve pipe 3 inside. The casing material 16 is usually made of plastic, rubber or other synthetic materials. Its main function is to protect and fix the sleeve valve pipe 3 and prevent it from being interfered with or damaged by external factors.

[0022] refer to Figure 1 , Figure 2 A tapered end 17 is fixedly installed on the bottom surface of the sleeve valve tube 3; the tapered end 17 facilitates the sleeve valve tube 3 to better enter and be fixed inside the mounting hole 2.

[0023] refer to Figure 1 , Figure 3 and Figure 4 The sleeve valve pipe 3 has an internal grouting pipe 4. A connecting flange 18 is fixedly installed on the outer surface of the grouting pipe 4 near its top. A grouting mechanism 5 is installed on the outer surface of the grouting pipe 4. Multiple sealing rubber cups 6 are fixedly installed on the outer surface of the grouting pipe 4 above and below the grouting mechanism 5. The connecting flange 18 facilitates connection between the grouting pipe 4 and an external grout supply pipe, allowing the added, prepared grout to enter the grouting pipe 4. This facilitates subsequent grouting operations via the grouting mechanism 5. Four sealing rubber cups 6 are installed: two above and two below the grouting mechanism 5. This improves the sealing effect and prevents the grout from flowing downwards, thus facilitating subsequent cleaning of the sleeve valve pipe 3.

[0024] refer to Figure 1 , Figure 2 and Figure 3 The grouting mechanism 5 includes a grout discharge hole 12, a circular groove 13, a sleeve valve sleeve 14, and a grouting hole 15. The outer surface of the grouting pipe 4 is provided with multiple grout discharge holes 12 in a circumferential array. The grout discharge holes 12 are located between multiple sealing rubber cups 6. Through the multiple grout discharge holes 12, it is convenient for grout with a certain pressure from the outside to be discharged through them.

[0025] refer to Figure 1 , Figure 2 and Figure 3The outer surface of the sleeve valve tube 3 is provided with a circular groove 13, and a sleeve valve sleeve 14 is provided inside the circular groove 13. Multiple circular grooves 13 are arranged in an evenly spaced array on the outer surface of the sleeve valve tube 3, and a sleeve valve sleeve 14 is provided inside each of the multiple circular grooves 13. A grouting hole 15 is provided on the inner wall of the circular groove 13. The sleeve valve sleeve 14 is made of rubber material. When grout with a certain pressure is discharged through the grout discharge hole 12, the sleeve valve sleeve 14 will be pushed open, so that the grout can be discharged through the grouting hole 15, which facilitates the grouting operation of soft soil layer and gravel layer.

[0026] refer to Figure 1 , Figure 3 and Figure 4 The top surface of the sleeve valve pipe 3 is provided with a limiting ring block 7, and a circular limiting hole 8 is opened in the middle of the top surface of the limiting ring block 7. One end of the grouting pipe 4 passes through the interior of the circular limiting hole 8. The limiting ring block 7 facilitates the insertion of the top end of the sleeve valve pipe 3 into its interior, and the circular limiting hole 8 facilitates the passage of one end of the grouting pipe 4 through its interior. This facilitates the limiting of the grouting pipe 4, so that the grouting pipe 4 will not deviate to the left or right during grouting.

[0027] refer to Figure 1 , Figure 3 and Figure 4 The outer surface of the limiting ring block 7 has two symmetrical fixing holes 9. The outer surface of the sleeve valve tube 3 near the top has two symmetrical fixing holes 10 corresponding to the fixing holes 9. A rod 11 is provided inside the fixing hole 9. One end of the rod 11 passes through the inside of the fixing hole 9 and the fixing hole 10. By inserting one end of the rod 11 into the inside of the fixing hole 9 and the fixing hole 10, it is easy to limit and fix the limiting ring block 7 and improve stability.

[0028] The implementation principle of the sleeve valve pipe grouting device applicable to sand and gravel strata in this application is as follows: The operator first drills multiple installation holes 2 at a designated location using a drilling rig, and then fills the inside of these holes with casing material 16. After the casing material 16 is filled, the operator can install the sleeve valve pipe 3 inside it. The casing material 16 will fix and protect the sleeve valve pipe 3, thereby preventing it from being interfered with and damaged by external factors.

[0029] At this time, the personnel install the limiting ring block 7 on the top of the sleeve valve tube 3, so that the grouting pipe 4 is inserted into the sleeve valve tube 3 through the circular limiting hole 8, and ensure that the bottom end of the grouting pipe 4 is in contact with the bottom of the sleeve valve tube 3. Grouting is usually carried out from bottom to top. Therefore, when the grout with a certain pressure enters through the grouting pipe 4, it will be discharged through the grout discharge hole 12, thus being located between multiple sealing rubber cups 6. In this way, the grout will not move to the bottom of the sleeve valve tube 3. At this moment, the grout discharged between the sealing rubber cups 6 will push open the rubber sleeve valve sleeve 14, and then be discharged through the grouting hole 15. This design facilitates the directional grouting operation of soft soil layer and gravel layer.

[0030] The device has a simple structure and is easy to operate. The limiting ring block 7 can limit the grouting pipe 4 to ensure that it will not deviate when it moves up and down to grout, thereby improving stability and sealing effect of the sealing rubber cup 6. At the same time, the setting of multiple sealing rubber cups 6 can effectively control the grout in the area that needs to be grouted, preventing the grout from entering the bottom of the sleeve valve pipe 3 and affecting its subsequent cleaning, thereby improving convenience.

[0031] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sleeve valve pipe grouting device suitable for sand and gravel strata, comprising a foundation layer (1), characterized in that: The top surface of the base layer (1) is provided with multiple mounting holes (2), and each mounting hole (2) is provided with a sleeve valve tube (3). A grouting pipe (4) is provided inside the sleeve valve tube (3). A grouting mechanism (5) is provided on the outer surface of the grouting pipe (4). Multiple sealing rubber cups (6) are fixedly installed above and below the grouting mechanism (5) on the outer surface of the grouting pipe (4). A limiting ring block (7) is provided on the top surface of the sleeve valve tube (3). The limiting ring block (7)... A circular limiting hole (8) is provided in the middle of the top surface. One end of the grouting pipe (4) passes through the interior of the circular limiting hole (8). Two fixing holes (9) are symmetrically provided on the outer surface of the limiting ring block (7). Two fixing holes (10) corresponding to the fixing holes (9) are symmetrically provided on the outer surface of the sleeve valve pipe (3) near the top. An insert rod (11) is provided inside the fixing hole (9). One end of the insert rod (11) passes through the interior of the fixing hole (9) and the fixing hole (10).

2. The sleeve valve pipe grouting device for sand and gravel strata as described in claim 1, characterized in that: The grouting mechanism (5) includes a grout discharge hole (12), a circular groove (13), a sleeve valve sleeve (14), and a grouting hole (15). The outer surface of the grouting pipe (4) is provided with a plurality of grout discharge holes (12) arranged in a circumferential array. The grout discharge holes (12) are located between a plurality of sealing rubber cups (6). The outer surface of the sleeve valve pipe (3) is provided with a circular groove (13). The sleeve valve sleeve (14) is provided inside the circular groove (13). The inner wall of the circular groove (13) is provided with a grouting hole (15).

3. A sleeve valve pipe grouting device suitable for sand and gravel strata as described in claim 1, characterized in that: The mounting hole (2) is provided with a sleeve material (16).

4. A sleeve valve pipe grouting device suitable for sand and gravel strata as described in claim 1, characterized in that: A tapered end (17) is fixedly installed on the bottom surface of the sleeve valve tube (3).

5. A sleeve valve pipe grouting device suitable for sand and gravel strata as described in claim 1, characterized in that: The grouting pipe (4) is fixedly installed with a connecting flange (18) near the top outer surface.

6. A sleeve valve pipe grouting device suitable for sand and gravel strata as described in claim 1, characterized in that: The outer surface of the sleeve valve tube (3) is provided with a plurality of circular grooves (13) arranged at equal intervals, and each of the plurality of circular grooves (13) is provided with a sleeve valve sleeve (14).

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