Post-wall grouting equipment for tunnel construction shield

Abstract

The utility model discloses a back grouting device for a tunnel construction shield, which comprises a mortar conveying mechanism, a grouting adjusting mechanism is arranged on the front side of the mortar conveying mechanism, the grouting adjusting mechanism comprises an adjusting disc, four adjusting moving grooves which are through front and back are arranged on the side face of the adjusting disc, and the adjusting moving grooves are communicated with the adjusting disc. Threaded rods are movably installed on the sides, close to the circle center of the adjusting disc, of the four adjusting moving grooves correspondingly, moving sliding plates are installed on the outer walls of the four threaded rods correspondingly in a threaded mode, grouting hard pipes are fixedly installed on the front sides of the four moving sliding plates correspondingly, and a plurality of extending grouting pipes are installed on the front sides of the four grouting hard pipes correspondingly in a threaded mode. According to the device, the grouting box, the four grouting hard pipes and the extending grouting pipe are matched with one another, so that the gap between the circular tunnel segment and the stratum can be quickly grouted in all directions, and the grouting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical direction of tunnel construction, and particularly relates to a post-grouting device for a shield in tunnel construction. Background Technique

[0002] During the shield construction process, after the shield segments are assembled, there is a certain gap between the outside of the segments and the soil mass. The gap can be filled through post-grouting behind the wall, and at the same time, settlement of the segments and the soil mass can be prevented. The post-grouting of the shield machine can play a role in connecting the stratum and the segments, preventing ground deformation, and increasing the waterproof performance of the tunnel. For the existing technology, there are the following problems:

[0003] Because when the existing grouting equipment grouts in the gap between the segments and the stratum, it often adopts the form of direct pipeline discharge. After the pipeline is filled with concrete mortar, it can only grout at the bottom under the action of gravity, and it is necessary to wait slowly for the grouting to be completed, with slow efficiency. And due to the arc-shaped shape of the upper area of the segments, the grouting of the top area will become very difficult. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a post-grouting device for a shield in tunnel construction for the existing technology to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A post-grouting device for a shield in tunnel construction, including a mortar conveying mechanism. A grouting adjustment mechanism is arranged on the front side of the mortar conveying mechanism. The grouting adjustment mechanism includes an adjustment disk. Four front-rear through adjustment moving grooves are opened on the side surface of the adjustment disk. One side of the four adjustment moving grooves close to the center of the adjustment disk is movably installed with threaded rods. Threaded moving slides are installed on the outer walls of the four threaded rods. Fixedly installed on the front sides of the four moving slides are grouting hard pipes. A number of extended grouting pipes are respectively threadedly installed on the front sides of the four grouting hard pipes.

[0006] A further improvement of the technical solution of the utility model lies in that: A driving cabin is opened inside the center of the adjustment disk. A driving motor is fixedly installed at the center of the front side of the adjustment disk. The output shaft of the driving motor penetrates into the inner cavity of the driving cabin and is fixedly installed with, One end of the four threaded rods close to the center of the adjustment disk penetrates into the inner cavity of the driving cabin and is fixedly installed with bevel gear two. All four bevel gear two are engaged with.

[0007] A further improvement of the technical solution of the utility model lies in that: The mortar conveying mechanism includes a moving base. Two moving wheels are arranged on both the left and right sides of the moving base. A grouting box is fixedly installed on the top of the moving base. A lifting mechanism is fixedly installed on the front side of the top of the moving base.

[0008] A further improvement of the technical solution of the present utility model lies in that: a partition board is fixedly installed in the middle of the inner cavity of the grouting box. The partition board divides the grouting box into two inner cavities, front and back. A feed pipe penetrating through to the front inner cavity is fixedly connected to the rear side of the grouting box. Four slurry pumping pumps are evenly and fixedly installed in the rear inner cavity of the grouting box. The input ends of the four slurry pumping pumps all penetrate through the partition board to the front inner cavity of the grouting box. The output ends of the four slurry pumping pumps are all fixedly connected with grouting hoses. The output ends of the four grouting hoses are respectively fixedly connected with the input ends of four grouting hard pipes.

[0009] A further improvement of the technical solution of the present utility model lies in that: the lifting mechanism includes a fixed box. An electric push rod is fixedly installed at the bottom of the inner wall of the fixed box. The output end of the electric push rod is fixedly installed with a limiting bottom plate. The four side surfaces of the limiting bottom plate are respectively in contact with the four side surfaces of the inner wall of the fixed box. A lifting plate is fixedly installed at the top of the limiting bottom plate. The top of the lifting plate penetrates through the top of the fixed box. A connecting plate is fixedly installed on the front side of the lifting plate.

[0010] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model,

[0011] (1) Through the mutual cooperation of the grouting box, the four grouting hard pipes, and the extended grouting pipes, the gaps between the circular tunnel segments and the formation can be quickly grouted in all directions, improving the grouting efficiency;

[0012] (2) Through the mutual cooperation of the adjusting disc, the driving cabin, the driving motor, the adjusting moving groove, the threaded rod, and the lifting mechanism, the grouting hard pipes and the extended grouting pipes for grouting can be adjusted at different positions and different heights, so as to conveniently adapt to tunnel segments with different diameters and improve the applicability of the grouting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is the overall schematic diagram of the structure of the present utility model;

[0015] Figure 2 is the schematic diagram of the grouting adjustment mechanism of the structure of the present utility model;

[0016] Figure 3 is the schematic sectional view of the adjusting disc of the structure of the present utility model;

[0017] Figure 4 is the schematic sectional view of the grouting box of the structure of the present utility model;

[0018] Figure 5 This is a schematic diagram of the lifting mechanism of the structure of the present utility model.

[0019] In the figure: 1. Mortar conveying mechanism; 11. Moving base; 12. Moving wheels; 13. Grouting box; 131. Feed pipe; 132. Partition board; 133. Slurry pumping pump; 134. Grouting hose; 14. Lifting mechanism; 141. Fixed box; 142. Electric push rod; 143. Limit bottom plate; 144. Lifting plate; 145. Connection plate; 2. Grouting adjustment mechanism; 21. Adjusting disc; 211. Driving cabin; 212. Driving motor; 213. Bevel gear one; 22. Adjusting moving groove; 23. Threaded rod; 231. Bevel gear two; 24. Moving slide plate; 25. Grouting hard pipe; 26. Extended grouting pipe. Specific embodiments

[0020] The following further non-limiting detailed description of the technical solution of the present utility model is made in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work fall within the scope of protection of the present utility model.

[0021] Please refer to Figures 1-5 , the present utility model provides a technical solution: a post - grouting device for a tunnel construction shield, including a mortar conveying mechanism 1. A grouting adjustment mechanism 2 is arranged on the front side of the mortar conveying mechanism 1. The grouting adjustment mechanism 2 includes an adjusting disc 21. Four front - to - back - through adjusting moving grooves 22 are formed on the side surface of the adjusting disc 21. One side of the four adjusting moving grooves 22 near the center of the adjusting disc 21 is movably installed with threaded rods 23. The outer walls of the four threaded rods 23 are all threadedly installed with moving slide plates 24. The front sides of the four moving slide plates 24 are all fixedly installed with grouting hard pipes 25. A number of extended grouting pipes 26 are respectively threadedly installed on the front sides of the four grouting hard pipes 25. Different numbers of extended grouting pipes 26 can be threadedly installed according to the length of the tunnel segment that needs to be grouted, and it is also convenient for reverse disassembly. A driving cabin 211 is formed inside the center of the adjusting disc 21. A driving motor 212 is fixedly installed at the center of the front side of the adjusting disc 21. The output shaft of the driving motor 212 penetrates into the inner cavity of the driving cabin 211 and is fixedly installed with a bevel gear one 213. One end of each of the four threaded rods 23 near the center of the adjusting disc 21 penetrates into the inner cavity of the driving cabin 211 and is fixedly installed with a bevel gear two 231. All four bevel gears two 231 are meshed with the bevel gear one 213;

[0022] When using the grouting equipment, by starting the driving motor 212 installed at the center of the front side of the adjusting disk 21, the first bevel gear 213 can be driven to rotate inside the driving chamber 211. By using the meshing of the first bevel gear 213 and the four second bevel gears 231, the four threaded rods 23 in the four adjusting moving grooves 22 can be driven to rotate, so as to drive the four moving slides 24 to move away from the center of the adjusting disk 21 at the same time, so that the four grouting hard pipes 25 can be opened, so as to adapt to segment tunnels with different diameters. Cooperating with the extendable grouting pipe 26 that can be installed and extended one by one in threads, it can adapt to tunnels with different lengths.

[0023] As Figure 4 shown, the mortar conveying mechanism 1 includes a moving base 11. Two moving wheels 12 are arranged on both the left and right sides of the moving base 11. A grouting box 13 is fixedly installed on the top of the moving base 11. A lifting mechanism 14 is fixedly installed on the front side of the top of the moving base 11. A partition plate 132 is fixedly installed in the middle of the inner cavity of the grouting box 13. The partition plate 132 divides the grouting box 13 into two front and rear inner cavities. A feed pipe 131 penetrating through to the front inner cavity is fixedly connected to the rear side of the grouting box 13. Four slurry pumping pumps 133 are evenly and fixedly installed in the rear inner cavity of the grouting box 13. The input ends of the four slurry pumping pumps 133 all penetrate through the partition plate 132 to the front inner cavity of the grouting box 13. The output ends of the four slurry pumping pumps 133 are all fixedly connected with grouting hoses 134. The output ends of the four grouting hoses 134 are respectively fixedly connected with the input ends of the four grouting hard pipes 25;

[0024] During grouting, the filling material is continuously injected into the front inner cavity of the grouting box 13 through the feed pipe 131. Then, by starting the four slurry pumping pumps 133 on the front side of the partition plate 132, the filling material in the partition plate 132 is pumped out and discharged into the four different grouting hard pipes 25 through the four grouting hoses 134 for unified grouting. The flexible grouting hoses 134 play a role of not affecting the adjustment of the grouting hard pipes 25. At the same time, after grouting, the moving base 11 is pushed backward by the moving wheels 12 to facilitate the extraction of the four grouting hard pipes 25 and the extendable grouting pipe 26 from the gap between the segment and the formation.

[0025] As Figure 5 shown, the lifting mechanism 14 includes a fixed box 141. An electric push rod 142 is fixedly installed at the bottom of the inner wall of the fixed box 141. A limiting bottom plate 143 is fixedly installed at the output end of the electric push rod 142. The four side surfaces of the limiting bottom plate 143 are respectively in contact with the four side surfaces of the inner wall of the fixed box 141. A lifting plate 144 is fixedly installed on the top of the limiting bottom plate 143. The top of the lifting plate 144 penetrates through the top of the fixed box 141. A connecting disk 145 is fixedly installed on the front side of the lifting plate 144;

[0026] The height of the overall adjustment disc 21 can also be adjusted by activating the electric push rod 142 inside the fixed box 141, which drives the limit bottom plate 143 and the lifting plate 144 at the top to move upward, thereby cooperating with the connection between the connection disc 145 and the center of the rear side of the adjustment disc 21, and driving the overall adjustment disc 21 to adjust its height up and down, facilitating adaptation to tunnel segments of different heights.

[0027] Next, the working principle of the post - grouting equipment for shield tunneling construction will be specifically described.

[0028] As Figures 1-5 shown, when using the grouting equipment, by activating the drive motor 212 installed at the center of the front side of the adjustment disc 21, the bevel gear one 213 is driven to rotate inside the cavity of the drive cabin 211. By using the meshing of the bevel gear one 213 and the four bevel gears two 231, the four threaded rods 23 in the four adjustment moving grooves 22 can be driven to rotate, thereby simultaneously driving the four moving sliders 24 to move away from the center of the adjustment disc 21, so that the four grouting hard pipes 25 are opened, thus adapting to tunnel segments of different diameters. Cooperating with the extendable grouting pipes 26 that can be thread - installed one by one, it can adapt to tunnels of different lengths. During grouting, the filling material is continuously injected into the inner cavity of the front side of the grouting box 13 through the feed pipe 131. Then, by activating the four slurry - pumping pumps 133 on the front side of the partition plate 132, the filling material in the partition plate 132 is pumped out and discharged into the four different grouting hard pipes 25 through the four grouting hoses 134 for unified grouting. The flexible grouting hoses 134 play the role of not affecting the adjustment of the grouting hard pipes 25. At the same time, after grouting, the moving base 11 is pushed backward by the moving wheels 12 to facilitate the extraction of the four grouting hard pipes 25 and the extendable grouting pipes 26 from the gap between the segment and the formation. The height of the overall adjustment disc 21 can also be adjusted by activating the electric push rod 142 inside the fixed box 141, which drives the limit bottom plate 143 and the lifting plate 144 at the top to move upward, thereby cooperating with the connection between the connection disc 145 and the center of the rear side of the adjustment disc 21, and driving the overall adjustment disc 21 to adjust its height up and down, facilitating adaptation to tunnel segments of different heights.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A post - grouting device for a shield tunneling machine, comprising a mortar conveying mechanism (1), characterized in that: A grouting adjustment mechanism (2) is arranged on the front side of the mortar conveying mechanism (1). The grouting adjustment mechanism (2) includes an adjustment disk (21). Four adjustment moving grooves (22) penetrating through from front to back are formed on the side surface of the adjustment disk (21). One side of the four adjustment moving grooves (22) close to the center of the adjustment disk (21) is movably installed with threaded rods (23). The outer walls of the four threaded rods (23) are threadedly installed with moving sliding plates (24). The front sides of the four moving sliding plates (24) are fixedly installed with grouting hard pipes (25). A plurality of extended grouting pipes (26) are respectively threadedly installed on the front sides of the four grouting hard pipes (25).

2. The post - grouting equipment for shield tunneling construction according to claim 1, characterized in that: A driving cabin (211) is formed inside the center of the adjustment disk (21). A driving motor (212) is fixedly installed at the center of the front side of the adjustment disk (21). The output shaft of the driving motor (212) penetrates into the inner cavity of the driving cabin (211) and is fixedly installed with a first bevel gear (213). One end of the four threaded rods (23) close to the center of the adjustment disk (21) penetrates into the inner cavity of the driving cabin (211) and is fixedly installed with a second bevel gear (231). The four second bevel gears (231) are all meshed with the first bevel gear (213).

3. The post-grouting equipment for shield tunneling construction according to claim 1, characterized in that: The mortar conveying mechanism (1) includes a moving base (11). Two moving wheels (12) are arranged on both the left and right sides of the moving base (11). A grouting box (13) is fixedly installed on the top of the moving base (11). A lifting mechanism (14) is fixedly installed on the front side of the top of the moving base (11).

4. The post - grouting equipment for shield tunneling construction according to claim 3, wherein: A partition plate (132) is fixedly installed in the middle of the inner cavity of the grouting box (13). The partition plate (132) divides the grouting box (13) into two inner cavities, front and back. A feed pipe (131) penetrating through to the front inner cavity is fixedly connected to the rear side of the grouting box (13). Four slurry pumping pumps (133) are evenly fixedly installed in the rear inner cavity of the grouting box (13). The input ends of the four slurry pumping pumps (133) all penetrate through the partition plate (132) to the front inner cavity of the grouting box (13). The output ends of the four slurry pumping pumps (133) are all fixedly connected with grouting flexible pipes (134). The output ends of the four grouting flexible pipes (134) are respectively fixedly connected to the input ends of the four grouting hard pipes (25).

5. The post-grouting equipment for the shield in tunnel construction according to claim 3, characterized in that: The lifting mechanism (14) includes a fixed box (141). An electric push rod (142) is fixedly installed at the bottom of the inner wall of the fixed box (141). The output end of the electric push rod (142) is fixedly installed with a limit bottom plate (143). The four side surfaces of the limit bottom plate (143) are respectively in contact with the four side surfaces of the inner wall of the fixed box (141). A lifting plate (144) is fixedly installed on the top of the limit bottom plate (143). The top of the lifting plate (144) penetrates through the top of the fixed box (141). A connecting disk (145) is fixedly installed on the front side of the lifting plate (144).

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