Secondary lining grouting device with mold

Abstract

The utility model provides a secondary lining grouting device with a die, which relates to the technical field of tunnel construction and comprises an RPC grouting pipe, a positioning mounting shell, a touch pad, a transmission column, a spring, a sealing rubber ring and a connecting rod. The positioning mounting shell is screwed on the outer side surface of the fixed flange plate through threads; the spring is connected with the fixed flange plate through welding, and the spring is connected to the upper side face of the push plate through welding; the top end of the transmission column is welded to the lower side face of the push plate. The upper side surface of the touch pressure pad is adhered to the bottom end of the transmission column; the connecting rod is hinged to the push plate, and the connecting rod is hinged to the airtight door plate; the sealing rubber ring adheres to the upper side face of the positioning installation shell. Through the arrangement of the push plate, the connecting rod, the airtight door plate, the spring, the fixed flange plate and the positioning installation shell, the installation operation is simplified, rapid plugging of an RPC grouting pipe opening is achieved, and the problems that a traditional secondary lining belt mold grouting pipe is complex in installation operation, and the bottom of the RPC grouting pipe cannot be rapidly plugged after grouting equipment is disassembled are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction, and more specifically, particularly relates to a secondary lining belt mold grouting device. Background Art

[0002] Second lining belt mold grouting is to inject concrete mortar into the mold through the RPC grouting pipe to fill it in the gap of the lining belt, thereby compacting the holes behind the lining concrete, ensuring the overall strength of the lining concrete, improving the waterproof performance, and enhancing the stability of the tunnel support structure. At present, the grouting pipe used for the second lining belt mold grouting needs to be inserted and installed at the pipe hole reserved in the trolley arch, that is, the fixed flange is first welded to the pipe hole of the trolley arch, and then the positioning flange is fixed and installed by multiple sets of bolts and multiple sets of nuts at the bottom of the fixed flange. The RPC grouting pipe after measurement and cutting is inserted into the positioning flange for fixing. It can be seen that when the fixed flange and the positioning flange are installed or disassembled, multiple sets of nuts need to be screwed. The installation process is complicated and the disassembly and assembly take a long time, which reduces the construction efficiency of the second lining belt mold grouting. In addition, when the grouting is completed, after the fixed flange and the positioning flange are disassembled, the bottom of the RPC grouting pipe cannot be timely blocked, which is easy to cause the lining belt gap and the unsolidified mortar of the RPC grouting pipe to leak out to form a cavity, affecting the quality of the second lining belt support structure. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a second lining belt mold grouting device to solve the problems of complicated installation operation of traditional second lining belt mold grouting pipe and inability to quickly seal the bottom of the RPC grouting pipe after the grouting equipment is disassembled.

[0004] The utility model provides a two-lining belt mold grouting device, comprising a ring plate; the upper side of the ring plate is welded and connected to the lower side of the arch plate on the top of the trolley; it also includes an RPC grouting pipe, a fixed flange, a positioning and mounting shell, a pressure measuring tube, a touch and pressure pad, a transmission column, a spring, a sealing rubber ring and a connecting rod; the upper side of the fixed flange is welded and connected to the lower side of the ring plate; the positioning and mounting shell is screwed to the outer side of the fixed flange through a thread; the liquid inlet of the pressure measuring tube and the liquid outlet hole of the grouting hose are screwed through a threaded seal, and the liquid inlet of the pressure measuring tube is screwed to the bottom end of the positioning and mounting shell through a thread; the top end of the spring is welded and connected to the fixed flange, and the bottom end of the spring is welded and connected to the upper side of the push plate; the top end of the transmission column is welded and connected to the lower side of the push plate; the upper side of the touch and pressure pad is bonded to the bottom end of the transmission column; the connecting rod is hinged to the push plate, and the connecting rod is hinged to the closed door panel; the sealing rubber ring is bonded to the upper side of the positioning and mounting shell; the closed door panel is slidably connected to the fixed flange.

[0005] In at least some embodiments, the positioning and mounting shell is a cover structure with an opening on the upper side, the inner side wall of the cover structure is provided with a thread, a boss is provided at the center position of the lower side of the positioning and mounting shell, a hexagonal column is provided on the outer side of the boss, a through hole is provided at the center position of the boss of the positioning and mounting shell that passes through from top to bottom, the boss through hole of the positioning and mounting shell is connected with the bottom pipe mouth of the RPC grouting pipe up and down, and the aperture of the boss through hole of the positioning and mounting shell is smaller than the outer pipe diameter of the RPC grouting pipe.

[0006] In at least some embodiments, a through hole structure that passes through the fixed flange from top to bottom is provided at the center position of the fixed flange, the RPC grouting pipe is inserted into the through hole of the fixed flange, a threaded structure is provided on the outer side of the fixed flange, the threads of the fixed flange are meshed with the threads inside the positioning and mounting shell cover, a rectangular groove is provided on the lower side of the fixed flange, and relative sliding grooves are provided on the front and rear side walls of the groove.

[0007] In at least some embodiments, there are two groups of sealed door panels, which are symmetrically distributed on the left and right sides. Each group of sealing panels is provided with convex strips on the front and rear sides. The convex strips of the sealing panels are embedded in the sliding grooves of the rectangular grooves of the fixed flange plates, and the closed ends of the sealed door panels are wedge structures.

[0008] In at least some embodiments, four groups of open through grooves are provided on the outer side of the RPC grouting pipe near the top, and the open through grooves are distributed in a circular array around the central axis of the RPC grouting pipe. The outer side of the RPC grouting pipe is provided with scale markings.

[0009] In at least some embodiments, the touch-pressure pad is a circular ring structure made of silicone material.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, a fixed flange and a positioning installation shell are provided, and the meshing screwing structure of the thread on the outer side of the fixed flange and the thread on the inner side of the positioning installation shell and the hexagonal column structure on the outer side of the convex column of the positioning installation shell replaces the clamping and fixing structure formed by screwing multiple groups of nuts together with multiple groups of bolts, thereby simplifying the operation of fixing and installing the RPC grouting pipe, making the installation and disassembly operations of the RPC grouting pipe faster and more convenient, and improving the operating efficiency of the tunnel vault secondary lining grouting construction.

[0012] 2. In the utility model, the dynamic link motion mechanism composed of the push plate, the connecting rod and the closed door plate cooperates with the elastic expansion and contraction characteristics of the spring, so that the two sets of closed door plates are automatically opened during the installation of the fixed flange and the positioning installation shell, and the closed door plates are automatically closed when the fixed flange and the positioning installation shell are disassembled, thereby realizing the rapid closure and blocking of the bottom pipe opening of the RPC grouting pipe during the equipment disassembly process, and preventing the mortar inside the RPC grouting pipe and the gap between the lining belt from leaking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a front view structural schematic diagram of the utility model.

[0015] Figure 3 It is a left-side structural schematic diagram of the utility model.

[0016] Figure 4 It is a right-side structural schematic diagram of the utility model.

[0017] Figure 5 It is a rear view cross-sectional structural schematic diagram of the utility model.

[0018] Figure 6 It is a schematic diagram of the cutaway structure of the utility model.

[0019] Figure 7 The utility model Figure 6 Schematic diagram of the enlarged structure of part A in the middle.

[0020] Figure numerals: 1. Arch plate on top of trolley; 2. RPC grouting pipe; 3. Fixed flange; 4. Positioning and mounting shell; 5. Pressure measuring tube; 6. Grouting hose; 7. Touch and pressure pad; 8. Transmission column; 9. Push plate; 10. Spring; 11. Sealed door panel; 12. Sealing rubber ring; 13. Connecting rod; 14. Ring plate. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] like Figure 1-Figure 7As shown, the utility model provides a two-lining belt mold grouting device, including a ring plate 14; the upper side of the ring plate 14 is welded to the lower side of the arch plate 1 on the top of the trolley; it also includes an RPC grouting pipe 2, a fixed flange 3, a positioning installation shell 4, a pressure measuring pipe 5, a contact pressure pad 7, a transmission column 8, a spring 10, a sealing rubber ring 12 and a connecting rod 13; the upper side of the fixed flange 3 is welded to the lower side of the ring plate 14; the positioning installation shell 4 is screwed to the outer side of the fixed flange 3 by threads; the liquid inlet of the pressure measuring pipe 5 and the liquid outlet of the grouting hose 6 are connected. The liquid inlet of the pressure measuring tube 5 is screwed to the bottom end of the positioning and mounting shell 4 through a threaded sealing connection; the top end of the spring 10 is connected to the fixed flange 3 by welding, and the bottom end of the spring 10 is welded to the upper side of the push plate 9; the top end of the transmission column 8 is welded to the lower side of the push plate 9; the upper side of the touch pad 7 is bonded to the bottom end of the transmission column 8; the connecting rod 13 is hinged to the push plate 9, and the connecting rod 13 is hinged to the closed door panel 11; the sealing rubber ring 12 is bonded to the upper side of the positioning and mounting shell 4; the closed door panel 11 is slidably connected to the fixed flange 3.

[0023] When the utility model performs grouting work on the secondary lining arch, the upper side of the fixed flange 3 is first welded to the lower side of the ring plate 14 by full welding technology to ensure that the contact surface of the ring plate 14 and the fixed flange 3 are completely integrated together. At this time, the through hole of the fixed flange 3 is opposite to the reserved pipe hole of the arch plate 1 on the top of the trolley, and the touch pad 7 is pressed to open the two sets of closed door panels 11, and the RPC grouting pipe 2 is inserted from the bottom of the through hole of the fixed flange 3 until the top of the RPC grouting pipe 2 contacts the arch and is in close contact with the anti-static The water plate is then inserted according to the scale mark on the outer side of the RPC grouting pipe 2 to determine the insertion length of the RPC grouting pipe 2 and take out the RPC grouting pipe 2 for cutting. After the cutting is completed, the RPC grouting pipe 2 is inserted into the through hole of the fixed flange 3 again, and then the inner side thread of the positioning and mounting shell 4 cover body is engaged with the thread structure on the outer side of the fixed flange 3. The hexagonal column structure on the outer side of the convex column of the positioning and mounting shell 4 is twisted with a wrench to quickly fix the positioning and mounting shell 4 and the fixed flange 3. During the screwing process of the fixed flange 3, the positioning and mounting shell 4 pushes the touch pad 7, and the touch pad 7 pushes the push plate 9 welded on the top of the transmission column 8 to overcome the elastic force of the spring 10 and move upward. The push plate 9 pulls the hinged connecting rod 13 to flip, and the two groups of connecting rods 13 pull the closed door panels 11 to separate left and right respectively, forming a grouting passage for the RPC grouting pipe 2, and then grouting begins. The slurry is injected into the lining gap from the grouting hose 6, the pressure measuring pipe 5 and the open slot on the top of the RPC grouting pipe 2 in turn. When the pressure measuring pipe 5 is When the pressure gauge of the measuring tube 5 shows 1.0 MPa, stop grouting, and then twist the positioning mounting shell 4 in the opposite direction to gradually separate the positioning mounting shell 4 from the fixed flange 3 along the thread. At this time, the touch pad 7, the transmission column 8 and the push plate 9 all move downward due to the elastic force of the spring 10, and the push plate 9 pushes the connecting rod 13 to flip, and the two groups of connecting rods 13 respectively push the two groups of hinged closed door panels 11 to move towards each other, completing the rapid and automatic sealing and closure of the bottom pipe opening of the RPC grouting pipe 2 during the disassembly process to prevent mortar leakage.

[0024] In the disclosed embodiment, the positioning and mounting shell 4 is a cover structure with an opening on the upper side, the inner side wall of the cover structure is provided with a thread, a boss is provided at the center position of the lower side of the positioning and mounting shell 4, and a hexagonal column is provided on the outer side of the boss, which is convenient for the installer to screw the positioning and mounting shell 4 with a wrench, and a through hole is provided at the center position of the boss of the positioning and mounting shell 4 that passes through the upper and lower parts, and the boss through hole of the positioning and mounting shell 4 is connected with the bottom pipe mouth of the RPC grouting pipe 2 up and down, and the aperture of the boss through hole of the positioning and mounting shell 4 is smaller than the outer pipe diameter of the RPC grouting pipe 2, so that the bottom end of the RPC grouting pipe 2 is pressed against the sealing rubber ring 12 at the upper end of the boss through hole of the positioning and mounting shell 4, forming a sealed passage for grouting to enter the RPC grouting pipe 2.

[0025] In the disclosed embodiment, a through hole structure which passes through from top to bottom is provided at the center position of the fixed flange 3, the RPC grouting pipe 2 is inserted into the through hole of the fixed flange 3, and a threaded structure is provided on the outer side of the fixed flange 3. The thread of the fixed flange 3 is meshed with the thread inside the cover of the positioning and mounting shell 4, so that the positioning and mounting shell 4 is screwed to the outer side of the fixed flange 3 through threads, and the installation operation is simple and quick. A rectangular groove is provided on the lower side of the fixed flange 3, and relative sliding grooves are provided on the front side wall and the rear side wall of the groove.

[0026] In the disclosed embodiment, there are two groups of sealed door panels 11, which are symmetrically distributed on the left and right sides. Each group of sealing panels is provided with convex strips on the front and rear sides, and the convex strips of the sealing panels are embedded in the sliding grooves of the rectangular grooves of the fixed flange 3. The two groups of sealed door panels 11 move synchronously in opposite directions along the sliding grooves to complete the rapid sealing of the bottom pipe opening of the RPC grouting pipe 2 to prevent mortar leakage. The closed end of the sealed door panel 11 is a wedge structure, and the inclined structure of the wedge is used to avoid the sealed door panel 11 from getting stuck when it contacts the bottom pipe edge of the RPC grouting pipe 2, thereby ensuring that the sealed door panel 11 is stably closed.

[0027] In the disclosed embodiment, four groups of open through grooves are provided on the outer side surface of the RPC grouting pipe 2 near the top, and the open through grooves are distributed in a circular array around the central axis of the RPC grouting pipe 2. The external mortar flows into the lining belt gap through the open through grooves of the RPC grouting pipe 2. The outer side surface of the RPC grouting pipe 2 is provided with scale markings, which are used by grouting construction personnel to accurately read and measure the insertion depth of the RPC grouting pipe 2, determine the cutting length of the RPC grouting pipe 2, and facilitate the cutting personnel to accurately cut the RPC grouting pipe 2.

[0028] In the disclosed embodiment, the touch and pressure pad 7 is a circular ring structure made of silicone material. When the fixed flange 3 and the positioning and mounting shell 4 are screwed together and closed, the lower side of the touch and pressure pad 7 is tightly attached to the bottom surface of the inner part of the cover of the positioning and mounting shell 4. When the touch and pressure work is completed, the touch and pressure pad 7 forms a surrounding seal between the RPC grouting pipe 2 and the positioning and mounting shell 4, thereby improving the airtightness and preventing the fine slurry from leaking from the connection between the fixed flange 3 and the positioning and mounting shell 4.

[0029] The installation, connection or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc., and the specific structures, models and coefficient indicators of all its components are its own technology, as long as it can achieve its beneficial effects, it can be implemented. The top arch plate 1 of the trolley and the pressure measuring tube 5 used above are common components on the market. When you buy them back and use them, you only need to connect them according to the instruction manual purchased together, so I will not repeat them here.

[0030] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A two-lining belt mold grouting device, comprising a ring plate (14); the upper side of the ring plate (14) is welded to the lower side of the top arch plate (1) of the trolley; characterized in that: The invention also comprises an RPC grouting pipe (2), a fixed flange (3), a positioning and mounting shell (4), a pressure measuring pipe (5), a contact and pressure pad (7), a transmission column (8), a spring (10), a sealing rubber ring (12) and a connecting rod (13); the upper side of the fixed flange (3) is welded to the lower side of the ring plate (14); the positioning and mounting shell (4) is screwed to the outer side of the fixed flange (3) by means of threads; the liquid inlet of the pressure measuring pipe (5) is screwed to the liquid outlet of the grouting hose (6) by means of threads, and the liquid inlet of the pressure measuring pipe (5) is screwed to the liquid outlet of the grouting hose (6) by means of threads. The bottom end of the shell (4); the top end of the spring (10) is connected to the fixed flange (3) by welding, and the bottom end of the spring (10) is welded to the upper side of the push plate (9); the top end of the transmission column (8) is welded to the lower side of the push plate (9); the upper side of the touch pad (7) is bonded to the bottom end of the transmission column (8); the connecting rod (13) is hinged to the push plate (9), and the connecting rod (13) is hinged to the closed door plate (11); the sealing rubber ring (12) is bonded to the upper side of the positioning installation shell (4); the closed door plate (11) is slidably connected to the fixed flange (3).

2. A two-lining belt mold grouting device as claimed in claim 1, characterized in that: The positioning and mounting shell (4) is a cover structure with an opening on the upper side, the inner side wall of the cover structure is provided with threads, a convex column is provided at the center position of the lower side of the positioning and mounting shell (4), a hexagonal column is provided on the outer side of the convex column, a through hole is provided at the center position of the convex column of the positioning and mounting shell (4) and passes through from top to bottom, the convex column through hole of the positioning and mounting shell (4) is connected with the bottom pipe opening of the RPC grouting pipe (2) in upper and lower directions, and the diameter of the convex column through hole of the positioning and mounting shell (4) is smaller than the outer pipe diameter of the RPC grouting pipe (2).

3. A two-lining belt mold grouting device as claimed in claim 1, characterized in that: The fixed flange (3) is provided with a through hole structure which passes through from top to bottom at the center position, and the RPC grouting pipe (2) is inserted into the through hole of the fixed flange (3). The outer side of the fixed flange (3) is provided with a thread structure, and the thread of the fixed flange (3) is meshed with the thread inside the cover body of the positioning and mounting shell (4). The lower side of the fixed flange (3) is provided with a rectangular groove, and the front side wall and the rear side wall of the groove are provided with relative sliding grooves.

4. A two-lining belt mold grouting device as claimed in claim 1, characterized in that: The number of the sealed door panels (11) is two groups, and the sealed door panels (11) are symmetrically distributed on the left and right sides. Each group of sealing panels is provided with convex strips on both the front and rear sides, and the convex strips of the sealing panels are embedded in the sliding grooves of the rectangular grooves of the fixed flange (3). The closed ends of the sealed door panels (11) are wedge structures.

5. A two-lining belt mold grouting device as claimed in claim 1, characterized in that: Four groups of open through grooves are provided on the outer side surface of the RPC grouting pipe (2) near the top, and the open through grooves are distributed in a circular array around the central axis of the RPC grouting pipe (2). The outer side surface of the RPC grouting pipe (2) is provided with scale markings.

6. A two-lining belt mold grouting device as claimed in claim 1, characterized in that: The touch-pressure pad (7) is a circular ring structure made of silicone material.

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