Auxiliary pushing device for rapid water and slurry stopping film bag device

Abstract

The auxiliary pushing device comprises a pushing sleeve, a pushing hydraulic cylinder, a guide rod and a pushing platform, one end of the pushing sleeve abuts against an annular table arranged on a grouting pipe, the outer end of the grouting pipe movably penetrates through the pushing sleeve, a flange plate is arranged at the other end of the pushing sleeve, and the pushing hydraulic cylinder is arranged on the flange plate. The flange plate is connected to the two guide rods through the two linear bearings, the two ends of each guide rod are fixedly connected to the pushing platform through the fixing bases, the end portions of cylinder rods of the pushing hydraulic cylinders are fixedly connected to the flange plate on the outer sides of the two guide rods respectively, and one end of a cylinder barrel of each pushing hydraulic cylinder is fixedly connected to the mounting base. And the mounting seat is fixedly connected to the pushing platform. The grouting pipe pushing-in device can achieve rapid pushing-in of the grouting pipe, saves time and labor, does not need manual close-range operation, is higher in operation safety, is balanced in pushing stress of the two hydraulic cylinders, is matched with directional movement of the double guide rods, is better in stability, and can enable fixed connection of the pushing hydraulic cylinders to be more stable due to the installation of the auxiliary supporting frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel grouting hole blocking, and relates to an auxiliary pushing device for a rapid water-stopping and grout-stopping membrane bag device. Background Art

[0002] my country has become the country with the largest scale, largest number, and most difficult tunnel construction in the world. With the improvement of the national road network and the maturity of tunnel construction technology, the number of high-pressure water-rich tunnels has increased. In order to avoid surface water loss caused by tunnel construction, which may cause changes in the ecological environment and have adverse effects on residents' production and life, the design principle of "blocking as the main method and limiting discharge" for groundwater treatment has been adopted in the tunnel construction industry. Therefore, research on rapid construction technology for tunnel grouting and water blocking is particularly important. The use of rapid water-stopping membrane bag devices can achieve rapid grouting and water blocking construction. During the installation process, manual pressure is used. Due to the internal water pressure (water pressure reaches 1.4Mpa), the pressure is time-consuming and labor-intensive, and it is easy to hurt hands, resulting in poor safety. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide an auxiliary pushing device for a rapid water-stopping and serous membrane bag device, which saves time and effort in installation, is safer in operation, and avoids hand injuries.

[0004] The technical solution adopted by the utility model is: an auxiliary pushing device for a rapid water-stopping and serous membrane bag device, comprising a pushing sleeve, a pushing hydraulic cylinder, a guide rod and a pushing platform, one end of the pushing sleeve rests on an annular platform arranged on the grouting pipe and the outer end of the grouting pipe moves through the pushing sleeve, a flange is provided at the other end of the pushing sleeve, the flange is connected to the two guide rods through two linear bearings, both ends of each guide rod are fixedly connected to the pushing platform through a fixing seat, the pushing platform is fixedly connected to the ground, two pushing hydraulic cylinders are used, the ends of their cylinder rods are respectively fixedly connected to the flanges on the outside of the two guide rods, one end of the cylinder barrel of the pushing hydraulic cylinder is fixedly connected to the mounting seat, the mounting seat is fixedly connected to the pushing platform, and the pushing platform is also connected to an auxiliary support frame, which rests on the bottom of the cylinder barrel of the pushing hydraulic cylinder.

[0005] Furthermore, the above-mentioned auxiliary pushing device for the rapid water-stopping and slurry membrane bag device also includes a driven gear that is detachably fixed near the outer end of the grouting pipe, the inner diameter of the pushing sleeve is larger than the large diameter of the driven gear, the driving gear meshing with the driven gear is fixedly connected to the motor shaft of the driving motor, and the driving gear meshes with the driven gear after passing through the opening on the upper side of the pushing sleeve, the driving motor is fixedly connected to the gear box arranged outside the driving gear, a box cover is provided on the top of the gear box, and the gear box is arranged on the upper side of the pushing sleeve.

[0006] Furthermore, a rotary bearing is provided between the pushing sleeve and the annular platform, a pressure sensor is provided between the rotary bearing and the pushing sleeve, and a step hole is provided at the end of the pushing sleeve, and the step hole houses the pressure sensor rotary bearing.

[0007] Furthermore, the outer end of the grouting pipe is connected to a hose, which passes through the pushing sleeve and is placed under the pushing platform.

[0008] Furthermore, the annular platform is provided with a sleeve, which is sleeved on the grouting pipe and locked with a plurality of locking screws.

[0009] The beneficial effects of the utility model: compared with the existing technology, the utility model adopts the auxiliary pushing device, which can realize the rapid pushing of the grouting pipe, saving time and effort, and does not require close-range human operation, with higher operation safety and avoiding hand injuries. Two hydraulic cylinders are used for symmetrical pushing, with balanced force, and with the directional movement of the double guide rods, the stability is better, and the installation of the auxiliary support frame can make the fixed connection of the pushing hydraulic cylinder more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Schematic diagram of a rapid water-stopping and grout-stopping membrane bag device for tunnel grouting and water-blocking holes;

[0011] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0012] Figure 3 It is a schematic diagram of the top view of the structure of the auxiliary pushing device for the rapid water-stopping and serous membrane bag device;

[0013] Figure 4 This is a structural diagram of the slewing bearing installation. DETAILED DESCRIPTION

[0014] The utility model will be further introduced below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1: Figure 3~Figure 4 As shown, the auxiliary pushing device for the rapid water-stopping and serous membrane bag device is as follows Figure 3-4As shown, the specific structure includes a pushing sleeve 13, a pushing hydraulic cylinder 14, a guide rod 15 and a pushing platform 16. One end of the pushing sleeve 13 rests on the annular platform 17 provided on the grouting pipe 1 and the outer end of the grouting pipe 1 moves through the pushing sleeve 13. A flange 18 is provided at the other end of the pushing sleeve 13. The flange 18 is connected to the two guide rods 15 through two linear bearings 19. Both ends of each guide rod 15 are fixedly connected to the pushing platform 16 through a fixing seat 20. The pushing platform 16 is fixedly connected to the ground. The pushing hydraulic cylinder 14 adopts two, and the ends of the cylinder rods are respectively fixedly connected to the flanges 18 on the outside of the two guide rods 15. One end of the cylinder barrel of the pushing hydraulic cylinder 14 is fixedly connected to the mounting seat 21, and the mounting seat 21 is fixedly connected to the pushing platform 16. The auxiliary pushing device can realize the rapid pushing of the grouting pipe, saves time and effort, does not require close human operation, and has higher operational safety. It adopts two hydraulic cylinders to push symmetrically, with balanced force, and cooperates with the double guide rods for directional movement, which has better stability. The pushing platform 16 is also connected to an auxiliary support frame 22, which abuts against the bottom of the cylinder barrel of the pushing hydraulic cylinder 14. Installing the auxiliary support frame can make the fixed connection of the pushing hydraulic cylinder more stable. A shock-absorbing rubber layer is provided between the auxiliary support frame and the cylinder barrel, which can effectively play a shock-absorbing and buffering role, avoiding the vibration of the entire equipment caused by the impact of water flow, which easily leads to additional torque at the cylinder barrel connection. It also includes a driven gear 23 that is detachably fixed (connected) near the outer end of the grouting pipe 1, and the inner diameter of the pushing sleeve 13 is larger than The large diameter of the driven gear 23 and the driving gear 24 meshing with the driven gear 23 are fixedly connected to the motor shaft of the driving motor 25, and the driving gear 24 passes through the opening 26 on the upper side of the pushing sleeve 13 and meshes with the driven gear 23. The driving motor 25 is fixedly connected to the gear box 27 arranged outside the driving gear 24. A box cover 28 is provided on the top of the gear box 27. The gear box 27 is arranged on the upper side of the pushing sleeve 13. The driving motor drives the driving gear to rotate, which drives the driven gear to rotate, and then drives the grouting pipe to rotate. The rotating grouting pipe has less resistance during the pushing process, which is more conducive to advancement, reduces the probability of getting stuck, and avoids the possibility of the film bag being stuck. It is also convenient to fit the spiral protrusion 7 with the spiral groove 8 to achieve the best position placement. The pushing sleeve 13 and the ring A slewing bearing 29 is provided between the annular platform 17, a pressure sensor 30 is provided between the slewing bearing 29 and the pushing sleeve 13, and a step hole 31 is provided at the end of the pushing sleeve 13. The step hole 31 is used to place the pressure sensor 30 and the slewing bearing 29. The pressure sensor can monitor the force change in real time. When the collected pressure exceeds the set value, it means that the grouting pipe is stuck and needs to be withdrawn and pushed again, which plays a role in safety monitoring. The slewing bearing is installed to assist rotation, protect the sensor and avoid excessive friction with the annular platform causing it to be stuck. The step hole is provided to achieve positioning, which facilitates and quickly installs the pressure sensor and the slewing bearing. The lead of the pressure sensor is led out from the through hole provided on the side of the step hole. The outer end of the grouting pipe 1 is connected with a hose 32.The hose 32 passes through the push sleeve 13 and is placed under the push platform 16. The hose guides the water flow to a distant place to avoid affecting or impacting the auxiliary push device. The hose is convenient to follow and has a certain elastic buffering effect. The annular platform 17 is provided with a sleeve 33, which is sleeved on the grouting pipe 1 and locked with multiple locking screws 34. The sleeve and locking screws are fixed in a detachable manner, which is convenient for disassembly after installing the membrane bag device, and then facilitating grouting by the grouting device. The grouting pipe 1 is also provided with a water baffle 35. The water baffle 35 is located at the drain 5 and can block the water rushing out of the side wall to avoid affecting the push device.

[0016] Example 2: Figures 1 to 4 As shown, a membrane bag device for quickly stopping water and grouting water holes in tunnel grouting is provided, comprising a grouting pipe 1, a membrane bag 2, a grouting pipe 3 and an exhaust pipe 4. A valve 5 is installed at the outer end of the grouting pipe 1, and a membrane bag 2 is connected to the outer cover of the grouting pipe 1. The grouting pipe 3 and the exhaust pipe 4 are sealed and inserted into the membrane bag 2 and the outer ends are led to the side of the drainage valve 5 outside the membrane bag 2. The membrane bag 2 is filled with concrete, and an outward-bulging spiral protrusion 7 is provided on the outer surface of the membrane bag 2, and the spiral protrusion 7 fits with the spiral groove 8 provided at the end of the grouting hole 6. The device is inserted into the grouting hole 6, and the grouting pipe 3 is used to grout to fill the membrane bag 2, so as to seal the gap around the grouting pipe and the grouting hole; the water-stopping and grouting structure is provided with a spiral protrusion that cooperates with the spiral groove of the grouting hole to increase the friction between the membrane bag and the grouting hole wall, thereby ensuring that the membrane bag and the grouting hole can be sealed while having better tension to resist external protrusion, effectively avoiding the grouting pipe from falling off and moving outward, and improving the safety during the grouting process, especially for tunnel grouting and water blocking when the water pressure (water pressure reaches 1.4Mpa) and water volume are large, it improves the efficiency of rapid water-stopping and grouting at the hole mouth, is simple to install, has good sealing, avoids leakage and sealing reliability.

[0017] In order to meet the friction between the grouting hole and the membrane bag and avoid difficulty in grouting, the pitch of the spiral protrusion 7 and the spiral groove 8 is 2-4 times the diameter of the grouting pipe 1.

[0018] In order to achieve reliable connection between the membrane bag and the grouting pipe, the inner end of the membrane bag 2 is embedded in the annular table 9 arranged near the inner end of the grouting pipe 1 and is locked with a conical sleeve 10 with a small inner side and a large outer side. The inner end of the membrane bag is fastened to the annular table 9 through the conical sleeve. The function of the conical sleeve is to distribute the pressure of the inner end water pressure to the grouting pipe, reduce the pressure on the end of the membrane bag, and thereby achieve reliable sealing during the grouting process.

[0019] In order to ensure the density of the grouting concrete, the inner end of the grouting pipe 1 is arranged near the lower side of the inner end of the membrane bag 2, and the exhaust pipe 4 is arranged near the upper side of the middle part of the membrane bag 2, and auxiliary ventilation holes 11 are arranged around the inner end of the exhaust pipe 4, which can move the slurry from the inside to the outside and flow out at the top middle side, thereby ensuring that the slurry in the membrane bag is fully filled and the density is ensured, and complex ventilation holes are added to avoid ineffective ventilation after the end is blocked.

[0020] In order to achieve automatic sealing grouting and reliability of grouting, the grouting pipe 1 is installed with a water pressure sensor 12 for testing water pressure, the grouting pipe 3 is connected to the grouting pump, the grouting pipe is connected to the grouting pressure sensor, the water pressure sensor 12 and the grouting pressure sensor are connected to the controller, the controller is connected to the grouting pump, the exhaust valve and the grouting valve and the cement mortar flow sensor, the exhaust valve is installed on the exhaust pipe, the grouting valve and the cement mortar flow sensor are installed on the grouting pipe, which can control the grouting pressure and the volume of the grouting according to the pressure of the drain valve, ensuring that the concrete is denser in the membrane bag after grouting, and the sealing effect and connection reliability are better.

[0021] The operating method of the rapid water-stop and slurry-stop membrane bag device used for grouting and plugging water holes in tunnels is as follows: after the grouting and hole making is completed, open the valve on the grouting pipe, place the rapid water-stop and slurry-stop membrane bag device in the grouting hole, and inject the pre-mixed plugging concrete into the membrane bag through the grouting pump using the grouting pipe. After the slurry diffuses and fills the membrane bag and slurry overflows from the exhaust pipe, gradually close the exhaust valve on the exhaust pipe, and continue to slowly pressurize the grouting. When all the exhaust valves are closed, continue to pressurize the grouting. According to the collected water flow pressure, when the grouting pressure reaches the set value and the grouting volume is at least 1.1 times the volume of the membrane bag, close the grouting pipe and the exhaust pipe mouth, stop grouting, and after the slurry in the membrane bag solidifies for the set time, close the drain valve, connect the outer end of the grouting pipe to the grouting equipment for plugging the grouting hole, and start grouting. In the operation method, the control of grouting pressure obtained according to the drainage pressure and the control of grouting volume can ensure that the membrane bag can fit the grouting pipe and grouting tightly, improve the connection reliability, and avoid the grouting pipe from moving outward during the grouting process due to loosening.

[0022] During the installation process of the rapid water-stop and serous membrane bag device, manual pressure is used for installation. During the pressing process, due to the internal water pressure, it is time-consuming and labor-intensive, and it is easy to hurt the hands, and the safety is poor. To solve this problem, an auxiliary pushing device for the rapid water-stop and serous membrane bag device is used, such as Figure 3-4As shown, the specific structure includes a pushing sleeve 13, a pushing hydraulic cylinder 14, a guide rod 15 and a pushing platform 16. One end of the pushing sleeve 13 rests on the annular platform 17 provided on the grouting pipe 1 and the outer end of the grouting pipe 1 moves through the pushing sleeve 13. A flange 18 is provided at the other end of the pushing sleeve 13. The flange 18 is connected to the two guide rods 15 through two linear bearings 19. Both ends of each guide rod 15 are fixedly connected to the pushing platform 16 through a fixing seat 20. The pushing platform 16 is fixedly connected to the ground. The pushing hydraulic cylinder 14 adopts two, and the ends of the cylinder rods thereof are respectively fixedly connected to the flanges 18 outside the two guide rods 15. One end of the cylinder barrel of the pushing hydraulic cylinder 14 is fixedly connected to the mounting seat 21, and the mounting seat 21 is fixedly connected to the pushing platform 16. The auxiliary pushing device can realize the rapid pushing of the grouting pipe, save time and effort, and does not require close human operation, which has higher operational safety. It adopts two hydraulic cylinders to push symmetrically, with balanced force, and cooperates with the double guide rods for directional movement, which has better stability. The pushing platform 16 is also connected to an auxiliary support frame 22, which abuts against the bottom of the cylinder barrel of the pushing hydraulic cylinder 14. Installing the auxiliary support frame can make the fixed connection of the pushing hydraulic cylinder more stable. A shock-absorbing rubber layer is provided between the auxiliary support frame and the cylinder barrel, which can effectively play a shock-absorbing and buffering role, avoiding the vibration of the entire equipment caused by the impact of water flow, which is easy to cause additional torque at the cylinder barrel connection. It also includes a driven gear 23 that is detachably fixed (connected) near the outer end of the grouting pipe 1, and the pushing sleeve 13 is inside. The diameter is larger than the large diameter of the driven gear 23. The driving gear 24 meshing with the driven gear 23 is fixedly connected to the motor shaft of the driving motor 25, and the driving gear 24 meshes with the driven gear 23 after passing through the opening 26 on the upper side of the pushing sleeve 13. The driving motor 25 is fixedly connected to the gear box 27 arranged outside the driving gear 24. A box cover 28 is provided on the top of the gear box 27. The gear box 27 is arranged on the upper side of the pushing sleeve 13. The driving motor drives the driving gear to rotate, which drives the driven gear to rotate, and then drives the grouting pipe to rotate. The rotating grouting pipe has less resistance during the pushing process, which is more conducive to advancement, reduces the probability of getting stuck, and also avoids the possibility of the film bag being stuck. A rotary bearing 29 is provided between the pushing sleeve 13 and the annular table 17. The rotary bearing 29 and the pushing sleeve A pressure sensor 30 is provided between the delivery sleeve 13 and a step hole 31 is provided at the end of the push sleeve 13. The step hole 31 is used to place the pressure sensor 30 and the slewing bearing 29. The pressure sensor can monitor the force change in real time. When the collected pressure exceeds the set value, it means that the grouting pipe is stuck and needs to be withdrawn and pushed again, which plays a role in safety monitoring. The slewing bearing is installed to assist in rotation, protect the sensor and avoid excessive friction with the annular platform causing it to be stuck. The step hole is provided to achieve positioning, which facilitates and quickly installs the pressure sensor and the slewing bearing. The lead of the pressure sensor is led out from the through hole provided on the side of the step hole. The outer end of the grouting pipe 1 is connected to a hose 32. The hose 32 passes through the push sleeve 13 and is placed under the push platform 16.The hose is used to introduce water flow to a distant location, avoiding any impact or shock to the auxiliary pushing device. The hose is easy to follow and has a certain elastic buffering effect. The annular platform 17 is provided with a sleeve 33, which is sleeved on the grouting pipe 1 and locked with multiple locking screws 34. The sleeve and locking screws are detachably fixed, which facilitates the disassembly of the membrane bag device after installation, thereby facilitating grouting by the grouting device.

[0023] The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An auxiliary pushing device for a rapid water-stopping and serous membrane bag device, characterized in that: The invention comprises a pushing sleeve (13), a pushing hydraulic cylinder (14), a guide rod (15) and a pushing platform (16), wherein one end of the pushing sleeve (13) abuts against an annular platform (17) provided on the grouting pipe (1) and the outer end of the grouting pipe (1) moves through the pushing sleeve (13), and a flange (18) is provided at the other end of the pushing sleeve (13). The flange (18) is connected to the two guide rods (15) through two linear bearings (19), and both ends of each guide rod (15) are fixedly connected to the pushing sleeve (13) through a fixing seat (20). On the platform (16), the pushing platform (16) is fixedly connected to the ground, the pushing hydraulic cylinder (14) adopts two, the ends of the cylinder rods of which are respectively fixedly connected to the flanges (18) on the outside of the two guide rods (15), one end of the cylinder barrel of the pushing hydraulic cylinder (14) is fixedly connected to the mounting seat (21), and the mounting seat (21) is fixedly connected to the pushing platform (16). The pushing platform (16) is also connected to an auxiliary support frame (22), and the auxiliary support frame (22) rests on the bottom of the cylinder barrel of the pushing hydraulic cylinder (14).

2. The auxiliary pushing device for the rapid water-stopping and serous membrane bag device according to claim 1, characterized in that: The invention also includes a driven gear (23) detachably fixedly connected near the outer end of the grouting pipe (1), the inner diameter of the pushing sleeve (13) is larger than the large diameter of the driven gear (23), the driving gear (24) meshing with the driven gear (23) is fixedly connected to the motor shaft of the driving motor (25), and the driving gear (24) meshes with the driven gear (23) after passing through the opening (26) on the upper side of the pushing sleeve (13), and the driving motor (25) is fixedly connected to a gear box (27) arranged outside the driving gear (24), and a box cover (28) is arranged on the top of the gear box (27), and the gear box (27) is arranged on the upper side of the pushing sleeve (13).

3. The auxiliary pushing device for the rapid water-stopping and serous membrane bag device according to claim 2, characterized in that: A slewing bearing (29) is provided between the pushing sleeve (13) and the annular platform (17), a pressure sensor (30) is provided between the slewing bearing (29) and the pushing sleeve (13), and a step hole (31) is provided at the end of the pushing sleeve (13), and the step hole (31) is provided with the pressure sensor (30) and the slewing bearing (29).

4. The auxiliary pushing device for the rapid water-stopping and serous membrane bag device according to claim 1, characterized in that: The outer end of the grouting pipe (1) is connected to a hose (32), and the hose (32) passes through the pushing sleeve (13) and is placed under the pushing platform (16).

5. The auxiliary pushing device for the rapid water-stopping and serous membrane bag device according to claim 1, characterized in that: The annular platform (17) is provided with a sleeve (33), which is sleeved on the grouting pipe (1) and locked with a plurality of locking screws (34).

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