Secondary grouting equipment for shield construction

Abstract

The utility model discloses secondary grouting equipment for shield construction, which relates to the technical field of secondary grouting equipment for shield construction and comprises a shield storage tank, a first grouting pump and a second grouting pump are mounted at the bottom of the shield storage tank, and one end of the first grouting pump is in driving connection with a transmission pipe. The connecting column is pushed by the spring to push the second brush plate in the direction away from the connecting frame all the time, so that a brush on the second brush plate is attached to the inner wall of the stirring barrel all the time, and the connecting column is pushed by the spring to push the second brush plate in the direction away from the connecting frame all the time. And a brush on the second brush plate is always attached to the inner wall of the stirring barrel. And by arranging a second brush plate, the inner wall of the stirring barrel can be conveniently cleaned in the later period, the second brush plate can be integrally attached to the inner wall of the stirring barrel in a uniform stress mode, slurry on the inner wall of the stirring barrel is driven to flow, the slurry can be fully fused, and the grouting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary grouting equipment, in particular to secondary grouting equipment for shield construction. Background Art

[0002] During shield construction, phenomena such as bottom edge heave and collapse, water leakage, and pipe floating may occur to varying degrees. Timely grouting of the shield tail segments and secondary grouting can significantly reduce these phenomena. Therefore, timely grouting and secondary grouting, finding the appropriate grouting pressure, grouting volume, and grouting materials, and improving grouting efficiency are extremely important for segment grouting and tunnel deformation control, effectively preventing excessive ground subsidence.

[0003] Currently, patent publication number CN218454748U discloses a secondary grouting trolley for shield construction, which relates to the field of shield construction technology. It includes a trolley towed by a shield machine, a stirring mechanism mounted on the trolley, a water glass slurry barrel, a multifunctional grouting machine, and a controller electrically connected to the stirring mechanism. The stirring mechanism includes a first stirring barrel, a second stirring barrel located below the first stirring barrel, and a feeder for delivering raw materials to the first stirring barrel. By attaching the trolley behind the shield machine and carrying the secondary grouting equipment, the problem of shield construction requiring shutdown for secondary grouting is solved.

[0004] In order to solve the problem of secondary grouting in shield construction in the above-mentioned technical solution, the existing technology adopts a method of carrying secondary grouting equipment on a trolley attached to the back of the shield machine. However, there is still a problem that the mixing barrel is not stirred evenly enough, which leads to poor grouting effect. Utility Model Content

[0005] The purpose of the utility model is to provide a secondary grouting device for shield construction to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A secondary grouting device for shield construction, comprising a shield storage tank, a first grouting pump and a second grouting pump being installed at the bottom of the shield storage tank, one end of the first grouting pump being drivingly connected to a transmission pipe, a first valve body being installed on the surface of the transmission pipe, a stirring mechanism being installed at one end of the transmission pipe, a guide tube being fixedly connected to the top of the stirring mechanism, a second valve body being installed on the surface of the guide tube, and a stirring mechanism being installed at one end of the transmission pipe;

[0008] The stirring mechanism includes a stirring barrel, which is installed at one end of the transmission pipe, a motor is fixedly connected to the top of the stirring barrel, a rotating shaft is fixedly connected to the output end of the motor, a connecting frame is fixedly connected to the surface of the rotating shaft, cleaning parts are installed on both sides of the connecting frame, a second stirring shaft is fixedly connected to the surface of the rotating shaft, a third valve body is installed on one side of the stirring barrel, a centrifugal pump is installed at one end of the third valve body, a grouting pipe is fixedly connected to one end of the centrifugal pump, and a pipe sleeve is sleeved on one end of the grouting pipe.

[0009] A further improvement of the technical solution of the present utility model is that: a first stirring shaft is fixedly connected to the surface of the connecting frame, a sleeve shaft is fixedly connected to the bottom of the connecting frame, and first brush plates are fixedly connected to both sides of the sleeve shaft. When the rotating shaft rotates, the first brush plate at the bottom of the connecting frame is driven to rotate, thereby assisting the slurry at the bottom of the mixing barrel to flow.

[0010] A further improvement of the technical solution of the present utility model is that the cleaning part includes a fixed sleeve, which is fixedly connected to both sides of the connecting frame. A spring is fixedly connected to the inside of the fixed sleeve. The connecting column is pushed by the spring to push the second brush plate away from the connecting frame.

[0011] A further improvement of the technical solution of the present utility model is that: one end of the spring is movably connected to a pressure plate, one end of the pressure plate is fixedly connected to a connecting column, one end of the connecting column is fixedly connected to a second cleaning brush, the brush on the second brush plate is always attached to the inner wall of the mixing barrel, and the connecting column can be pushed by the spring to push the second brush plate away from the connecting frame.

[0012] A further improvement of the technical solution of the present utility model is that: the pipe sleeve includes a sleeve body, the sleeve body is sleeved on one end of the grouting pipe, the surface of the sleeve body is fixedly connected with a first fixing plate, a second fixing plate and a third fixing plate, the sponge is bonded to the second fixing plate and the third fixing plate, and the provision of the sponge can prevent the second fixing plate and the third fixing plate from directly contacting the inner wall of the pipe and causing scratches.

[0013] A further improvement of the technical solution of the present invention is that: one end of the second fixing plate and the third fixing plate is fixedly connected with a sponge, the inside of the sleeve is fixedly connected with a magnet, and the outer sides of the second fixing plate and the third fixing plate are continuous semicircular petal-shaped, thereby improving the firmness of the connection.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides a secondary grouting device for shield construction. The connecting column is pushed by a spring, which can make the connecting column push the second brush plate in the direction away from the connecting frame, so that the brush on the second brush plate always fits the inner wall of the mixing barrel. The connecting column is pushed by a spring, which can make the connecting column push the second brush plate in the direction away from the connecting frame, so that the brush on the second brush plate always fits the inner wall of the mixing barrel. The provision of the second brush plate also facilitates the later cleaning of the inner wall of the mixing barrel, enables the second brush plate to be evenly applied to the inner wall of the mixing barrel, and drives the slurry on the inner wall of the mixing barrel to flow, so that the slurry can be fully integrated, thereby improving the grouting effect.

[0016] 2. The utility model provides a secondary grouting equipment for shield construction. The sponge is bonded to the second fixing plate and the third fixing plate, and the setting of the sponge can prevent the second fixing plate and the third fixing plate from directly contacting the inner wall of the pipe and causing scratches, thereby protecting the inner wall of the pipe. The outer sides of the second fixing plate and the third fixing plate are continuous semicircular petal-shaped, so the firmness of the connection can be improved. The upper end of the fixing plate is provided with an anti-slip pattern. The setting of the anti-slip pattern facilitates the removal of the sleeve and plays an anti-slip role. A magnet is fixedly connected to the sleeve, which is convenient for adsorption with the grouting pipe when assembling the grouting pipe, thereby improving the firmness of the connection, thereby reducing the wear of the grouting pipe, allowing the slurry to be stably transmitted, and increasing the service life of the grouting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the mixing barrel of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the cleaning element of the present utility model;

[0020] Figure 4 This is a structural diagram of the pipe sleeve of the utility model.

[0021] In the figure: 1. stirring mechanism; 10. stirring barrel; 11. motor; 12. cleaning part; 120. fixing sleeve; 121. spring; 122. pressure plate; 123. connecting column; 125. second brush plate; 13. second stirring shaft; 14. first stirring shaft; 15. sleeve shaft; 16. first brush plate; 17. rotating shaft; 18. connecting frame; 2. conduit; 3. second valve body; 4. third valve body; 5. centrifugal pump; 6. grouting pipe; 7. pipe sleeve; 701. first fixing plate; 702. second fixing plate; 703. third fixing plate; 704. sponge; 705. sleeve; 706. magnet; 8. transmission pipe; 9. first valve body; 20. shield storage tank; 21. first grouting pump; 22. second grouting pump. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the embodiments:

[0023] Example 1

[0024] like Figures 1-4 As shown, the utility model provides a secondary grouting equipment for shield construction, including a shield storage tank 20, a first grouting pump 21 and a second grouting pump 22 are installed at the bottom of the shield storage tank 20, one end of the first grouting pump 21 is driven and connected to a transmission pipe 8, a first valve body 9 is installed on the surface of the transmission pipe 8, a stirring mechanism 1 is installed at one end of the transmission pipe 8, a conduit 2 is fixedly connected to the top of the stirring mechanism 1, a second valve body 3 is installed on the surface of the conduit 2, a stirring mechanism 1 is installed at one end of the transmission pipe 8, and the stirring mechanism 1 includes a stirring barrel 10, which is installed at one end of the transmission pipe 8 and the top of the stirring barrel 10 is fixed. A motor 11 is connected, a rotating shaft 17 is fixedly connected to the output end of the motor 11, a connecting frame 18 is fixedly connected to the surface of the rotating shaft 17, cleaning members 12 are installed on both sides of the connecting frame 18, a second stirring shaft 13 is fixedly connected to the surface of the rotating shaft 17, a third valve body 4 is installed on one side of the mixing barrel 10, a centrifugal pump 5 is installed on one end of the third valve body 4, a grouting pipe 6 is fixedly connected to one end of the centrifugal pump 5, a pipe sleeve 7 is sleeved on one end of the grouting pipe 6, a first stirring shaft 14 is fixedly connected to the surface of the connecting frame 18, a sleeve shaft 15 is fixedly connected to the bottom of the connecting frame 18, and first brush plates 16 are fixedly connected to both sides of the sleeve shaft 15;

[0025] Specifically, when secondary grouting is required for construction, the first valve body 9 is used to control the amount of cement slurry discharged from the shield storage tank 20, and the second grouting pump 22 is used to control the amount of water glass added. At the same time, the stirring mechanism 1 is used to stir the secondary grouting liquid evenly, and the motor 11 is started. The motor 11 drives the rotating shaft 17 to rotate, and the rotating shaft 17 drives the first stirring shaft 14 and the second stirring shaft 13 to rotate to stir the slurry inside the mixing barrel 10. When the rotating shaft 17 rotates, it drives the first brush plate 16 at the bottom of the connecting frame 18 to rotate, thereby assisting the slurry at the bottom of the mixing barrel 10 to flow.

[0026] Example 2

[0027] like Figures 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the cleaning member 12 includes a fixed sleeve 120, the fixed sleeve 120 is fixedly connected to both sides of the connecting frame 18, the fixed sleeve 120 is fixedly connected to a spring 121 inside, one end of the spring 121 is movably connected to a pressure plate 122, one end of the pressure plate 122 is fixedly connected to a connecting column 123, one end of the connecting column 123 is fixedly connected to a second brush plate 125, the pipe sleeve 7 includes a sleeve body 705, the sleeve body 705 is sleeved on one end of the grouting pipe 6, the surface of the sleeve body 705 is respectively fixedly connected to a first fixing plate 701, a second fixing plate 702 and a third fixing plate 703, one end of the second fixing plate 702 and the third fixing plate 703 is fixedly connected to a sponge 704, and the interior of the sleeve body 705 is fixedly connected to a magnet 706;

[0028] Specifically, the connecting post 123 is pushed by the spring 121, so that the connecting post 123 can push the second brush plate 125 in the direction away from the connecting frame 18, so that the brush on the second brush plate 125 always sticks to the inner wall of the mixing barrel 10, and the connecting post 123 is pushed by the spring 121 so that the connecting post 123 can push the second brush plate 125 in the direction away from the connecting frame 18, so that the brush on the second brush plate 125 always sticks to the inner wall of the mixing barrel 10, preventing the brush from being damaged quickly due to the large local adhesion force; the setting of the second brush plate 125 also facilitates the later cleaning of the inner wall of the mixing barrel 10 and drives the slurry on the inner wall of the mixing barrel 10 to flow, so that the slurry can The sponge 704 is fully integrated with the second fixing plate 702 and the third fixing plate 703 by bonding, and the setting of the sponge 704 can prevent the second fixing plate 702 and the third fixing plate 703 from directly contacting the inner wall of the pipe and causing scratches, thereby protecting the inner wall of the pipe. The outer sides of the second fixing plate 702 and the third fixing plate 703 are continuous semicircular petal-shaped, thereby improving the firmness of the connection. The upper end of the fixing plate is provided with anti-slip grooves, and the setting of the anti-slip grooves facilitates the removal of the sleeve 705 and plays an anti-slip role. A magnet 706 is fixedly connected to the sleeve 705, which is convenient for adsorption with the grouting pipe 6 when the grouting pipe 6 is assembled, thereby improving the firmness of the connection.

[0029] The following is a detailed description of the working principle of the secondary grouting equipment for shield construction:

[0030] like Figures 1-4As shown, when secondary grouting is required during construction, the first valve body 9 is used to control the amount of cement slurry discharged from the shield storage tank 20, the second grouting pump 22 is used to control the amount of water glass added, and the stirring mechanism 1 is used at the same time to stir the secondary grouting liquid evenly, and the motor 11 is started, and the motor 11 drives the rotating shaft 17 to rotate, and the rotating shaft 17 drives the first stirring shaft 14 and the second stirring shaft 13 to rotate, stirring the slurry inside the mixing barrel 10, and when the rotating shaft 17 is rotating, it drives the first brush plate 16 at the bottom of the connecting frame 18 to rotate, and the connecting column 123 is rotated by the spring 121. Pushing can make the connecting column 123 push the second brush plate 125 away from the connecting frame 18, so that the brush on the second brush plate 125 always sticks to the inner wall of the mixing barrel 10. The connecting column 123 can push the second brush plate 125 away from the connecting frame 18 through the push of the spring 121, preventing the brush from being damaged quickly due to the large local adhesion force. The setting of the second brush plate 125 also facilitates the later cleaning of the inner wall of the mixing barrel 10 and drives the slurry on the inner wall of the mixing barrel 10 to flow, so that the slurry can be fully integrated.

[0031] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A secondary grouting device for shield construction, comprising a shield storage tank (20), characterized in that: A first grouting pump (21) and a second grouting pump (22) are installed at the bottom of the shield storage tank (20); one end of the first grouting pump (21) is driven and connected to a transmission pipe (8); a first valve body (9) is installed on the surface of the transmission pipe (8); a stirring mechanism (1) is installed at one end of the transmission pipe (8); a conduit (2) is fixedly connected to the top of the stirring mechanism (1); a second valve body (3) is installed on the surface of the conduit (2); and a stirring mechanism (1) is installed at one end of the transmission pipe (8); The stirring mechanism (1) comprises a stirring barrel (10), the stirring barrel (10) being mounted on one end of a transmission pipe (8), the top of the stirring barrel (10) being fixedly connected to a motor (11), the output end of the motor (11) being fixedly connected to a rotating shaft (17), the surface of the rotating shaft (17) being fixedly connected to a connecting frame (18), cleaning members (12) being mounted on both sides of the connecting frame (18), the surface of the rotating shaft (17) being fixedly connected to a second stirring shaft (13), a third valve body (4) being mounted on one side of the stirring barrel (10), a centrifugal pump (5) being mounted on one end of the third valve body (4), a grouting pipe (6) being fixedly connected to one end of the centrifugal pump (5), and a pipe sleeve (7) being sleeved on one end of the grouting pipe (6).

2. The secondary grouting equipment for shield construction according to claim 1, characterized in that: The surface of the connecting frame (18) is fixedly connected to a first stirring shaft (14), the bottom of the connecting frame (18) is fixedly connected to a sleeve shaft (15), and both sides of the sleeve shaft (15) are fixedly connected to first brush plates (16).

3. The secondary grouting equipment for shield construction according to claim 1, characterized in that: The cleaning member (12) comprises a fixing sleeve (120), the fixing sleeve (120) being fixedly connected to both sides of the connecting frame (18), and a spring (121) being fixedly connected inside the fixing sleeve (120).

4. The secondary grouting equipment for shield construction according to claim 3, characterized in that: One end of the spring (121) is movably connected to a pressure plate (122), one end of the pressure plate (122) is fixedly connected to a connecting column (123), and one end of the connecting column (123) is fixedly connected to a second brush plate (125).

5. The secondary grouting equipment for shield construction according to claim 1, characterized in that: The pipe sleeve (7) comprises a sleeve body (705), which is sleeved on one end of the grouting pipe (6), and the surface of the sleeve body (705) is fixedly connected with a first fixing plate (701), a second fixing plate (702) and a third fixing plate (703).

6. The secondary grouting equipment for shield construction according to claim 5, characterized in that: One end of the second fixing plate (702) and the third fixing plate (703) is fixedly connected with a sponge (704), and the interior of the sleeve (705) is fixedly connected with a magnet (706).

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