Guniting device of anchor rod drill carriage
By introducing a pipeline switching and pressure shifting mechanism into the shotcrete device of the anchor drilling rig, the leakage problem caused by excessive pipeline pressure during shotcrete was solved, achieving safe and efficient slurry circulation and recirculation, and improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI GAOPINGZHANG SHIGOU COAL IND CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
When the pressure inside the pipe of the existing anchor drilling rig shotcrete device rises abnormally during the shotcrete process, it can easily lead to leakage or bursting at the pipe connection, affecting construction efficiency and posing safety hazards.
A shotcrete device for anchor drilling rigs was designed, which includes a pipeline switching mechanism and a pressure moving mechanism. Through the cooperation of the grouting pump, grouting pipe and return pipe, the grout is automatically switched back to the mortar box when the pressure is too high, so as to avoid leakage caused by excessive pressure.
It effectively prevents leakage at pipe connections, improves construction safety and efficiency, and reduces safety hazards.
Smart Images
Figure CN224244915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grouting equipment technology, and in particular to a grouting device for an anchor drilling rig. Background Technology
[0002] Anchor grouting is a commonly used geological engineering technique, mainly used to consolidate anchor bolts after drilling holes in foundation materials such as rock and soil, in order to improve the load-bearing capacity and stability of the foundation. The specific operation steps are as follows: 1. Drilling; 2. Pretreatment; 3. Installing anchor bolts; 4. Grouting.
[0003] The existing device has significant technical defects: when the pressure inside the pipeline rises abnormally during the grouting process (such as when the anchor bolt hole is blocked or the grout viscosity is too high), the excessive pressure may cause leakage or even burst at the pipeline connection, which not only affects the construction efficiency but also poses a safety hazard. This utility model discloses a grouting device for an anchor bolt drilling rig to solve the above problems. Utility Model Content
[0004] The purpose of this application is to provide a shotcrete device for a rock bolt drilling rig to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution: a shotcrete device for an anchor drilling rig, comprising a mortar tank, a grouting pump disposed on one side of the mortar tank, the inlet end of the grouting pump being connected to the mortar tank, an mounting block disposed on one side of the grouting pump, a cylindrical cavity being formed on the mounting block, two circular grooves being formed on the inner wall of the cylindrical cavity, a connecting hole being formed on the inner wall of one side of the cylindrical cavity, the connecting hole being connected to the outlet end of the grouting pump, a pipe switching mechanism and a grouting pipe being installed on one of the circular grooves, the end of the grouting pipe away from the mounting block being connected to the anchor bolt, a pressure moving mechanism being installed on one side of the mounting block, the pressure moving mechanism being installed in cooperation with the pipe switching mechanism, and a return pipe being installed on the other circular groove, the end of the return pipe away from the mounting block being connected to the mortar tank.
[0006] Preferably, the pipeline switching mechanism includes a rotating cylinder rotatably installed in the cylindrical cavity, a feed groove is provided on the side of the rotating cylinder, the feed groove is positioned corresponding to the connecting hole, and a discharge hole is provided on the inner wall of one side of the feed groove, the discharge hole is positioned corresponding to the cylindrical groove.
[0007] Preferably, the pipeline switching mechanism further includes a rotating shaft fixedly installed on the side of the rotating cylinder, a circular hole is provided on one side inner wall of the cylindrical cavity, one end of the rotating shaft passes through the circular hole and is fixedly installed with a circular turntable, one end of a torsion spring is fixedly installed on the annular side of the rotating shaft, a fixing ring is fixedly installed on the other end of the torsion spring, the fixing ring is fixedly installed on the side of the mounting block, and an insertion hole is provided on the circular turntable.
[0008] Preferably, two sealing rings are installed on the side of the rotating cylinder, and the two sealing rings are located on both sides of the discharge hole. Two sealing strips are fixedly installed on the side of the rotating cylinder, and the two sealing strips are respectively located on both sides of the discharge hole. The two ends of the two sealing strips are respectively connected to the sides of the two sealing rings that are close to each other. Discharge holes are opened on the top inner wall of the circular groove corresponding to the return pipe and the bottom inner wall of the circular groove corresponding to the grouting pipe. The return pipe and the grouting pipe are respectively fixedly installed in the two discharge holes.
[0009] Preferably, the pressure moving mechanism includes a guide rod, and a guide hole is provided on the inner wall of one side of the circular groove corresponding to the grouting pipe. The guide rod is slidably installed in the guide hole, and both ends of the guide rod extend outside the guide hole. A connecting plate located on one side of the mounting block is fixedly installed at one end of the guide rod, and an insert rod is fixedly installed on the side of the connecting plate. One end of the insert rod extends into the insert hole, and a baffle plate located in the circular groove is fixedly installed at the other end of the guide rod. A sealing hose is fixedly installed on one side of the baffle plate, and the side of the sealing hose away from the baffle plate is fixedly connected to the inner wall of the circular groove.
[0010] Preferably, a spring is sleeved on the guide rod, and the two ends of the spring are respectively fixedly installed on the sides of the connecting plate and the mounting block that are close to each other.
[0011] Preferably, a motor is fixedly installed on the top of the mortar tank, and the output shaft of the motor extends into the mortar tank and is equipped with multiple stirring rods.
[0012] In summary, the technical effects and advantages of this utility model are as follows:
[0013] In this invention, starting the grouting pump allows the grout in the mortar tank to enter the anchor rod through the grouting pipe, completing the grouting. When the grouting pressure increases, the pressure moving mechanism moves. When the pressure moving mechanism moves a certain distance, the pipeline switching mechanism switches the pipeline, allowing the grout to circulate back into the mortar tank through the return pipe, thus preventing excessive pressure from causing leakage at the pipeline connection. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;
[0016] Figure 2 for Figure 1 Schematic diagram of the middle section;
[0017] Figure 3 A first-person perspective 3D view of the cooperation between the pressure moving mechanism and the pipeline switching mechanism;
[0018] Figure 4 A second-view perspective perspective view of the cooperation between the pressure moving mechanism and the pipeline switching mechanism;
[0019] Figure 5 This is a cross-sectional view of the mounting block;
[0020] Figure 6 A three-dimensional structural diagram of a shotcrete device for an anchor drilling rig, cut open from a mortar box.
[0021] In the diagram: 1. Mortar box; 2. Grouting pump; 3. Mounting block; 4. Return pipe; 5. Grouting pipe; 6. Anchor bolt; 7. Fixing ring; 8. Connecting plate; 9. Insert rod; 10. Insertion hole; 11. Circular turntable; 12. Torsion spring; 13. Sealing ring; 14. Rotating cylinder; 15. Baffle plate; 16. Sealing hose; 17. Guide rod; 18. Spring; 19. Cylindrical cavity; 20. Connecting hole; 21. Guide hole; 22. Circular groove; 23. Discharge hole; 24. Feed trough; 25. Discharge hole; 26. Motor; 27. Mixing rod; 28. Rotating shaft; 29. Sealing strip. Detailed Implementation
[0022] 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.
[0023] Example: Reference Figure 1-6The anchor drilling rig shotcrete device shown includes a mortar tank 1, a grouting pump 2 installed on one side of the mortar tank 1, the inlet end of the grouting pump 2 being connected to the mortar tank 1, an installation block 3 installed on one side of the grouting pump 2, a cylindrical cavity 19 opened on the installation block 3, two circular grooves 22 opened on the inner wall of the cylindrical cavity 19, a connecting hole 20 opened on one side of the inner wall of the cylindrical cavity 19, the connecting hole 20 being connected to the outlet end of the grouting pump 2, a pipe switching mechanism and a grouting pipe 5 installed on one of the circular grooves 22, the end of the grouting pipe 5 away from the installation block 3 being connected to the anchor rod 6, a pressure moving mechanism installed on one side of the installation block 3, the pressure moving mechanism being installed in conjunction with the pipe switching mechanism, and a return pipe 4 installed on the other circular groove 22, the end of the return pipe 4 away from the installation block 3 being connected to the mortar tank 1.
[0024] With the above structure: starting the grouting pump 2 allows the grout in the mortar tank 1 to enter the anchor rod 6 through the grouting pipe 5 to complete the grouting. When the grouting pressure increases, the pressure moving mechanism will move. When the pressure moving mechanism moves to a certain distance, the pipeline switching mechanism will switch the pipeline, so that the grout can be circulated into the mortar tank 1 through the return pipe 4, avoiding excessive pressure that could cause leakage at the connection of the return pipe 4.
[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the pipeline switching mechanism includes a rotating cylinder 14 rotatably installed in a cylindrical cavity 19. A feed groove 24 is provided on the side of the rotating cylinder 14, and the feed groove 24 corresponds to the position of the connecting hole 20. A discharge hole 25 is provided on the inner wall of one side of the feed groove 24, and the discharge hole 25 corresponds to the position of the circular groove 22. The pipeline switching mechanism also includes a rotating shaft 28 fixedly installed on the side of the rotating cylinder 14. A circular hole is provided on the inner wall of one side of the cylindrical cavity 19. One end of the rotating shaft 28 passes through the circular hole and is fixedly installed on a circular turntable 11. One end of a torsion spring 12 is fixedly installed on the annular side of the rotating shaft 28. A fixing ring 7 is fixedly installed on the other end of the torsion spring 12. The fixing ring 7 is fixedly installed on the side of the mounting block 3. An insertion hole 10 is provided on the circular turntable 11. Under the force of the torsion spring 12, the rotating shaft 28 rotates 180 degrees, thereby causing the discharge hole 25 to rotate and correspond to the circular groove 22 on the side of the return pipe 4. The slurry can be circulated into the mortar box 1 through the return pipe 4, avoiding excessive pressure that could cause leakage at the connection of the return pipe 4.
[0026] like Figure 3 , Figure 4 and Figure 5As shown, two sealing rings 13 are installed on the side of the rotating cylinder 14, located on both sides of the discharge hole 25. Two sealing strips 29 are fixedly installed on the side of the rotating cylinder 14, located on both sides of the discharge hole 25. The two ends of the two sealing strips 29 are connected to the adjacent sides of the two sealing rings 13. Discharge holes 23 are provided on the top inner wall of the groove 22 corresponding to the return pipe 4 and the bottom inner wall of the groove 22 corresponding to the grouting pipe 5. The return pipe 4 and the grouting pipe 5 are fixedly installed in the two discharge holes 23. The sealing strips 29 and sealing rings 13 facilitate the sealing of the discharge hole 25.
[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the pressure moving mechanism includes a guide rod 17. A guide hole 21 is provided on the inner wall of one side of the circular groove 22 corresponding to the grouting pipe 5. The guide rod 17 is slidably installed in the guide hole 21. Through the setting of the guide rod 17 and the guide hole 21, the guide rod 17 can only slide back and forth. Both ends of the guide rod 17 extend outside the guide hole 21. A connecting plate 8 located on one side of the mounting block 3 is fixedly installed at one end of the guide rod 17. An insert rod 9 is fixedly installed on the side of the connecting plate 8. One end of the insert rod 9 extends into the insert hole 10. A baffle 15 located in the circular groove 22 is fixedly installed at the other end of the guide rod 17. A sealing hose 16 is fixedly installed on one side of the baffle 15. The side of the sealing hose 16 away from the baffle 15 is fixedly connected to the inner wall of the circular groove 22. A spring 18 is sleeved on the guide rod 17. The two ends of the spring 18 are respectively fixedly installed on the sides of the connecting plate 8 and the mounting block 3 that are close to each other. When the spraying pressure increases, the pressure inside the circular groove 22 increases, causing the baffle 15 to move. The movement of the baffle 15 drives the guide rod 17, the connecting plate 8, and the insert rod 9 to move. When the pressure inside the circular groove 22 reaches a certain level, the insert rod 9 moves out of the insertion hole 10. The elastic force of the spring 18 can be set as needed. When the pressure is too high, the insert rod 9 can move out of the insertion hole 10.
[0028] like Figure 6 As shown, a motor 26 is fixedly installed on the top of the mortar tank 1. The output shaft of the motor 26 extends into the mortar tank 1 and is fitted with multiple stirring rods 27. By starting the motor 26, the multiple stirring rods 27 can be rotated, thereby stirring the mortar.
[0029] The working principle of this practical application is as follows:
[0030] In use, the movable connecting plate 8 moves the insertion rod 9 out of the insertion hole 10, causing the spring 18 to deform. Then, by rotating the circular turntable 11, the rotating shaft 28 and the rotating cylinder 14 rotate 180 degrees, causing the sealing ring 13 to deform. At this time, the insertion rod 9 and the insertion hole 10 are aligned again. Under the force of the spring 18, the insertion rod 9 moves into the insertion hole 10. The rotating cylinder 14 rotates so that the discharge hole 25 aligns with the circular groove 22 on the side of the grouting pipe 5. Starting the grouting pump 2 allows the slurry in the mortar tank 1 to enter the feed trough 24 and then enter the circular groove 22 through the discharge hole 25. The slurry flows through the grouting pipe 5. The grout is injected into the anchor bolt 6 and spraying is completed. At the same time, when the spraying pressure increases, the pressure in the circular groove 22 will increase, which will cause the baffle 15 to move. The movement of the baffle 15 will drive the guide rod 17, the connecting plate 8 and the insert rod 9 to move. When the pressure in the circular groove 22 reaches a certain level, the insert rod 9 will move out of the insertion hole 10. Under the action of the torsion spring 12, the rotating shaft 28 will rotate 180 degrees, which will cause the discharge hole 25 to rotate and correspond to the circular groove 22 on the side of the return pipe 4. The grout can be circulated into the mortar box 1 through the return pipe 4 to avoid excessive pressure causing leakage at the connection of the return pipe 4.
[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 shotcrete device for an anchor bolt drilling rig, characterized in that: The system includes a mortar tank (1), a grouting pump (2) on one side of the mortar tank (1), the feed end of the grouting pump (2) being connected to the mortar tank (1), an mounting block (3) on one side of the grouting pump (2), a cylindrical cavity (19) on the mounting block (3), two circular grooves (22) on the inner wall of the cylindrical cavity (19), and a connecting hole (20) on one side of the inner wall of the cylindrical cavity (19), the connecting hole (20) being connected to the grouting pump (2). The discharge ends are connected. One of the circular grooves (22) is equipped with a pipe switching mechanism and a grouting pipe (5). The end of the grouting pipe (5) away from the mounting block (3) is connected to the anchor rod (6). A pressure moving mechanism is installed on one side of the mounting block (3). The pressure moving mechanism is installed in cooperation with the pipe switching mechanism. A return pipe (4) is installed on the other circular groove (22). The end of the return pipe (4) away from the mounting block (3) is connected to the mortar box (1). The pipeline switching mechanism includes a rotating cylinder (14) rotatably installed in the cylindrical cavity (19). A feed groove (24) is provided on the side of the rotating cylinder (14). The feed groove (24) is positioned opposite to the connecting hole (20). A discharge hole (25) is provided on the inner wall of one side of the feed groove (24). The discharge hole (25) is positioned opposite to the circular groove (22). The pipeline switching mechanism also includes a rotating shaft (28) fixedly installed on the side of the rotating cylinder (14). A circular hole is provided on one side of the inner wall of the cylindrical cavity (19). One end of the rotating shaft (28) passes through the circular hole and is fixedly installed on a circular turntable (11). One end of a torsion spring (12) is fixedly installed on the annular side of the rotating shaft (28). A fixing ring (7) is fixedly installed on the other end of the torsion spring (12). The fixing ring (7) is fixedly installed on the side of the mounting block (3). An insertion hole (10) is provided on the circular turntable (11). Two sealing rings (13) are installed on the side of the rotating cylinder (14). The two sealing rings (13) are located on both sides of the discharge hole (25). Two sealing strips (29) are fixedly installed on the side of the rotating cylinder (14). The two sealing strips (29) are located on both sides of the discharge hole (25). The two ends of the two sealing strips (29) are respectively connected to the sides of the two sealing rings (13) that are close to each other. The inner wall of the top side of the groove (22) corresponding to the return pipe (4) and the inner wall of the bottom side of the groove (22) corresponding to the grouting pipe (5) are both provided with discharge holes (23). The return pipe (4) and the grouting pipe (5) are respectively fixedly installed in the two discharge holes (23). A guide hole (21) is provided on one side of the inner wall of the circular groove (22) corresponding to the grouting pipe (5). A guide rod (17) is slidably installed in the guide hole (21). Both ends of the guide rod (17) extend to the outside of the guide hole (21). A connecting plate (8) located on one side of the mounting block (3) is fixedly installed at one end of the guide rod (17). An insert rod (9) is fixedly installed on the side of the connecting plate (8). One end of the insert rod (9) extends into the insert hole (10). A baffle (15) located in the circular groove (22) is fixedly installed at the other end of the guide rod (17). A sealing hose (16) is fixedly installed on one side of the baffle (15). The side of the sealing hose (16) away from the baffle (15) is fixedly connected to the inner wall of the circular groove (22). A spring (18) is sleeved on the guide rod (17), and the two ends of the spring (18) are respectively fixedly installed on the sides of the connecting plate (8) and the mounting block (3) that are close to each other.
2. The shotcrete device for an anchor drilling rig according to claim 1, characterized in that: A motor (26) is fixedly installed on the top of the mortar tank (1), and the output shaft of the motor (26) extends into the mortar tank (1) and is equipped with multiple stirring rods (27).