Fan-shaped sprue gate device at top of tunnel secondary lining trolley

Abstract

The utility model belongs to the field of secondary lining trolleys, particularly relates to a fan-shaped sprue gate device at the top of a tunnel secondary lining trolley, and aims to solve the problems that when an existing arch crown sprue gate is closed, the pressure maintaining and leakage preventing effects cannot be achieved, concrete is difficult to fill compactly, and an inserting plate type sprue gate is large in opening and closing resistance and easy to block. The rotary sealing plate comprises a panel, a fan-shaped pouring opening is formed in the middle of the panel, a mounting lug plate is fixedly connected to the bottom of the panel, a fan-shaped plugging block is fixedly connected to one end of the mounting lug plate, and the fan-shaped plugging block is hollow. The fan-shaped pouring opening is quickly blocked, concrete leakage is effectively prevented, the continuity and stability of the pouring process are guaranteed, the rotating sealing plate can rotate around the rotating shaft after pouring is completed, remaining concrete is pressed into the vault, the pressure maintaining effect is achieved, and the problems of back disengaging and non-compactness are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary lining trolleys, in particular to a fan-shaped pouring port device on the top of a tunnel secondary lining trolley. Background Art

[0002] Concrete lining trolleys are specialized equipment essential for secondary lining during tunnel construction, used for concrete lining construction on the tunnel's inner walls. These non-standard products are indispensable for secondary lining during tunnel construction. They primarily include simple lining trolleys, fully hydraulic automatic lining trolleys, and grid-type lining trolleys. Fully hydraulic lining trolleys are further categorized into side-top arch, full-circle needle-beam, bottom-form needle-beam, and full-circle travel types.

[0003] Pouring concrete for the secondary lining vault of a tunnel is a major pain point and difficulty in tunnel construction. Due to the special location of the vault, concrete is prone to voids and cavities during pouring. These defects can seriously affect the structural safety and durability of the tunnel. The pain points and difficulties faced by traditional plug-in and rotary types during construction mainly include:

[0004] 1. Casting efficiency and quality control: Traditional arch concrete casting adopts the bottom-up vertical top pouring construction method. After the arch is cast, due to the effect of gravity, the arch casting port cannot achieve the effect of maintaining pressure and preventing leakage when closing. It is difficult to ensure that the concrete is filled densely, which can easily lead to quality problems such as insufficient secondary lining thickness, back voids, and looseness.

[0005] 2. A lot of concrete waste: After closing the pouring port, the concrete in the arch pump pipe cannot be used and can only be used as waste.

[0006] 3. The plug-in type pouring port has large resistance to opening and closing and is prone to getting stuck: there is a gap between the plug-in plate and the guide device on one side, and a large contact area on the other side. Stone slag will enter during the insertion and withdrawal process, increasing friction and causing the plug-in plate to get stuck.

[0007] 4. The rotary pouring mouth is difficult to operate and is prone to improper closure: The rotary pouring mouth drives the outer cover plate to rotate by rotating the handle. The cover plate is located on the outside of the panel and buried in the concrete. The specific position of the cover plate cannot be observed, and it is difficult to rotate the cover plate to the correct position, resulting in leakage.

[0008] 5. Impact on surface quality: After the construction of the plug-in type pouring port is completed, there will be a bulge on the tunnel contour surface that is slightly larger than the concrete behind the panel; after the construction of the rotary pouring port is completed, there will be a dent on the tunnel contour surface due to incomplete rotation, which increases the later grinding and repair work. Utility Model Content

[0009] The purpose of the utility model is to solve the problems existing in the prior art that when the arch pouring port is closed, the pressure maintaining and leakage preventing effect cannot be achieved, it is difficult to ensure that the concrete is filled densely, the opening and closing resistance of the plug-in type pouring port is large and it is easy to get stuck, and after the construction of the plug-in type pouring port is completed, there will be a bulge on the tunnel contour surface that is slightly larger than the concrete behind the panel; after the construction of the rotary pouring port is completed, the tunnel contour surface will be concave due to the incomplete rotation. The utility model proposes a fan-shaped pouring port device on the top of the tunnel secondary lining trolley.

[0010] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0011] A fan-shaped pouring port device on the top of a tunnel secondary lining trolley comprises a panel, a fan-shaped pouring port is provided in the middle of the panel, a mounting lug is fixedly connected to the bottom of the panel, one end of the mounting lug is fixedly connected to a fan-shaped blocking block, the fan-shaped blocking block is hollow and is used in conjunction with the fan-shaped pouring port, one end of the fan-shaped blocking block is fixedly connected to a feed pipe, and a blocking assembly for blocking the fan-shaped pouring port is provided at the bottom of the panel;

[0012] A hinge ear plate is fixedly connected to the bottom of one side of the panel, and a control component for controlling the discharging process is provided on one side of the hinge ear plate.

[0013] In one possible design, the sealing assembly includes a rotating shaft rotatably connected to the bottom of the panel, and a rotating sealing plate is fixedly sleeved on the outer wall of the rotating shaft. A sealing strip is provided on one side of the rotating sealing plate. The rotating sealing plate is located inside the fan-shaped sealing block and is used to seal the fan-shaped casting port. One side of the sealing strip is fixedly connected to a first connecting plate.

[0014] In one possible design, the control assembly includes a flat spring washer rotatably connected to one side of the hinge ear plate, one side of the flat spring washer is fixedly connected to a hydraulic cylinder, the piston rod of the hydraulic cylinder is fixedly connected to a second connecting plate, and the same pin shaft is provided inside the second connecting plate and the first connecting plate.

[0015] In a possible design, one side of the flat spring gasket is fixedly connected to two symmetrically arranged mounting plates, one side of the mounting plate is rotatably connected to a connecting rod, and one end of the connecting rod is fixedly connected to the hinge ear plate.

[0016] In a possible design, a plurality of mounting holes are provided inside the flat spring washer, and fixing screws are passed through the internal threads of the mounting holes. The fixing screws are used to connect the hydraulic cylinder and the flat spring washer.

[0017] In a possible design, a clearance hole is provided inside the flat spring gasket, and a connecting flange is provided at one end of the feed pipe.

[0018] In the present application, when in use, the hydraulic cylinder is started, and the piston rod of the hydraulic cylinder is extended. At this time, the piston rod of the hydraulic cylinder drives the second connecting plate to move, the second connecting plate drives the first connecting plate to move, the first connecting plate drives the sealing strip to move, and the sealing strip drives the rotating sealing plate to enter between the two sector-shaped blocking blocks. At this time, the rotating sealing plate blocks the sector-shaped pouring port and stops the discharge process;

[0019] The rotary cover rotates around the axis. After the concrete pouring is completed, its rotation can press the remaining concrete into the vault to achieve a certain pressure-maintaining effect, reduce the probability of problems such as voids and looseness at the back, and reduce concrete waste;

[0020] Due to the large thrust of the hydraulic cylinder and simple operation, the rotary cover plate can be opened and closed in place, reducing the labor intensity of workers, making the rotating shaft tangent and flush with the panel and the rotary cover plate, and ensuring the quality and flatness of the concrete surface.

[0021] Beneficial effects: efficient sealing and pressure maintenance:

[0022] Through the powerful thrust of the hydraulic cylinder, the movement and positioning of the rotating sealing plate can be accurately controlled to quickly seal the fan-shaped pouring port, effectively prevent concrete leakage, and ensure the continuity and stability of the pouring process.

[0023] After pouring is completed, the rotating sealing plate can rotate around the axis to press the remaining concrete into the arch, achieving a pressure-maintaining effect, reducing the problems of voids and looseness at the back, and improving the density and structural quality of the concrete.

[0024] Simplify operating procedures and reduce labor intensity:

[0025] The hydraulic cylinder is easy to operate. By controlling the extension and retraction of the piston rod, the opening and closing of the rotary sealing plate can be realized. No complicated manual operation is required, which significantly reduces the labor intensity of workers.

[0026] The coordinated use of the first connecting plate, the second connecting plate and the pin shaft makes the entire blocking and control mechanism more compact, reliable, and easy to maintain and operate.

[0027] Ensure the quality of concrete surface:

[0028] Under the precise control of the hydraulic cylinder, the rotating sealing plate can ensure that it is tangent and flush with the panel and the fan-shaped sealing block, avoiding the problem of uneven concrete surface caused by loose sealing during the pouring process.

[0029] The addition of the sealing strip further enhances the sealing between the rotating cover plate and the fan-shaped pouring port, ensuring the smoothness and overall beauty of the concrete surface.

[0030] Flexibility and adaptability:

[0031] By adjusting the piston rod stroke of the hydraulic cylinder, the moving distance of the rotary sealing plate can be flexibly controlled to adapt to fan-shaped pouring ports of different sizes and shapes.

[0032] The design of the mounting lugs, sector-shaped blocking blocks and feed pipes makes the entire device easy to install and dismantle, and convenient for transfer and reuse between different construction sites and tunnel secondary lining trolleys.

[0033] Stable and durable structure:

[0034] The addition of components such as flat spring washers, mounting plates and connecting rods enhances the stability and durability of the entire device, allowing it to maintain good working condition even in harsh construction environments.

[0035] The design of the fixing screws and mounting holes makes the connection between the hydraulic cylinder and the flat spring washer more firm and reliable, avoiding safety hazards caused by loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a three-dimensional structural diagram of the fan-shaped pouring gate device on the top of the tunnel secondary lining trolley during the discharge process proposed by the utility model;

[0037] Figure 2 This is a three-dimensional structural diagram of a fan-shaped pouring gate device on the top of a tunnel secondary lining trolley proposed by the present invention in a sealed state;

[0038] Figure 3 This is a schematic diagram of the main structure of a flat spring gasket in a fan-shaped pouring gate device on the top of a tunnel secondary lining trolley proposed in the utility model;

[0039] Figure 4 This is a side structural diagram of a flat spring gasket in a fan-shaped pouring gate device on the top of a tunnel secondary lining trolley proposed in the utility model;

[0040] Figure 5 The utility model provides a schematic side view of the structure of a fan-shaped blocking block in a fan-shaped pouring port device on the top of a tunnel secondary lining trolley.

[0041] In the figure: 1. Panel; 2. Feed pipe; 3. Connecting flange; 4. Rotating sealing plate; 5. First connecting plate; 6. Hydraulic cylinder; 7. Flat spring gasket; 8. Hinge ear plate; 9. Second connecting plate; 10. Sealing strip; 11. Mounting ear plate; 12. Rotating shaft; 13. Fan-shaped pouring mouth; 14. Fixing screw; 15. Mounting plate; 16. Connecting rod; 17. Clearance hole; 18. Mounting hole; 19. Fan-shaped blocking block; 20. Pin shaft. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Example 1; Reference Figure 1-5 , a fan-shaped pouring port device on the top of a tunnel secondary lining trolley, which is used in the field of tunnel secondary lining trolleys, comprises: a panel 1, a fan-shaped pouring port 13 is opened in the middle position of the panel 1, a mounting ear plate 11 is fixedly connected to the bottom of the panel 1, one end of the mounting ear plate 11 is fixedly connected to a fan-shaped blocking block 19, the fan-shaped blocking block 19 is hollow, the fan-shaped blocking block 19 is used in conjunction with the fan-shaped pouring port 13, one end of the fan-shaped blocking block 19 is fixedly connected to a feed pipe 2, a blocking component for blocking the fan-shaped pouring port 13 is provided at the bottom of the panel 1, the blocking component comprises a rotating shaft 12 rotatably connected to the bottom of the panel 1, the outer wall of the rotating shaft 12 is fixedly sleeved with a rotating sealing plate 4, A sealing strip 10 is provided on one side of the rotary sealing plate 4. The rotary sealing plate 4 is located inside the fan-shaped sealing block 19 and is used to seal the fan-shaped pouring port 13. One side of the sealing strip 10 is fixedly connected to the first connecting plate 5. The rotary sealing plate 4 rotates around the rotating shaft 12. After the concrete pouring is completed, its rotating motion can press the remaining part of the concrete into the vault, achieving a certain pressure maintenance effect, reducing the probability of problems such as voiding and looseness at the back, and reducing the waste of concrete. Due to the large thrust of the hydraulic cylinder 6 and the simple operation, the rotary sealing plate 4 can be opened and closed in place, reducing the labor intensity of workers, and making the rotating shaft 12 tangent to the panel 1 and the rotary sealing plate 4 flush, thereby ensuring the surface quality and flatness of the concrete;

[0044] The bottom of one side of the panel 1 is fixedly connected to a hinge ear plate 8, and one side of the hinge ear plate 8 is provided with a control component for controlling the discharging process. The control component includes a flat elastic gasket 7 rotatably connected to one side of the hinge ear plate 8, and one side of the flat elastic gasket 7 is fixedly connected to a hydraulic cylinder 6, and the piston rod of the hydraulic cylinder 6 is fixedly connected to the second connecting plate 9. The second connecting plate 9 and the first connecting plate 5 are provided with the same pin shaft 20 inside. One side of the flat elastic gasket 7 is fixedly connected to two symmetrically arranged mounting plates 15, and one side of the mounting plate 15 is rotatably connected to a connecting rod 16. One end of the connecting rod 16 is fixedly connected to the hinge ear plate 8. Start the hydraulic cylinder 6, and the piston rod of the hydraulic cylinder 6 extends. At this time, the piston rod of the hydraulic cylinder 6 drives the second connecting plate 9 to move, and the second connecting plate 9 drives the first connecting plate 5 to move. The first connecting plate 5 drives the sealing strip 10 to move, and the sealing strip 10 drives the rotary sealing plate 4 to enter between the two fan-shaped sealing blocks 19. At this time, the rotary sealing plate 4 blocks the fan-shaped casting mouth 13 and stops the discharging process.

[0045] Example 2; Reference Figure 1-5, improved on the basis of Example 1: a plurality of mounting holes 18 are opened inside the flat elastic gasket 7, and the internal threads of the mounting holes 18 are penetrated by fixing screws 14, and the fixing screws 14 are used to connect the hydraulic cylinder 6 and the flat elastic gasket 7, and a clearance hole 17 is opened inside the flat elastic gasket 7, and a connecting flange 3 is provided at one end of the feed pipe 2.

[0046] However, as is well known to those skilled in the art, the working principle and wiring method of the hydraulic cylinder 6 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0047] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A fan-shaped pouring gate device on the top of a tunnel secondary lining trolley, characterized in that: include: A panel (1), wherein a fan-shaped pouring port (13) is provided in the middle of the panel (1), a mounting ear plate (11) is fixedly connected to the bottom of the panel (1), one end of the mounting ear plate (11) is fixedly connected to a fan-shaped blocking block (19), the fan-shaped blocking block (19) is hollow, the fan-shaped blocking block (19) is used in conjunction with the fan-shaped pouring port (13), one end of the fan-shaped blocking block (19) is fixedly connected to a feed pipe (2), and a blocking component for blocking the fan-shaped pouring port (13) is provided at the bottom of the panel (1); A hinge ear plate (8) is fixedly connected to the bottom of one side of the panel (1), and a control component for controlling the discharge process is provided on one side of the hinge ear plate (8).

2. A fan-shaped pouring gate device on the top of a tunnel secondary lining trolley according to claim 1, characterized in that: The sealing assembly comprises a rotating shaft (12) rotatably connected to the bottom of the panel (1); a rotating sealing plate (4) is fixedly sleeved on the outer wall of the rotating shaft (12); a sealing strip (10) is provided on one side of the rotating sealing plate (4); the rotating sealing plate (4) is located inside the fan-shaped sealing block (19) and is used to seal the fan-shaped pouring port (13); and a first connecting plate (5) is fixedly connected to one side of the sealing strip (10).

3. The fan-shaped pouring gate device on the top of the tunnel secondary lining trolley according to claim 1, characterized in that: The control assembly comprises a flat spring washer (7) rotatably connected to one side of a hinge ear plate (8); one side of the flat spring washer (7) is fixedly connected to a hydraulic cylinder (6); a piston rod of the hydraulic cylinder (6) is fixedly connected to a second connecting plate (9); and the second connecting plate (9) and the first connecting plate (5) are provided with a same pin shaft (20) inside.

4. The fan-shaped pouring gate device on the top of the tunnel secondary lining trolley according to claim 3 is characterized in that: One side of the flat spring washer (7) is fixedly connected to two symmetrically arranged mounting plates (15), one side of the mounting plate (15) is rotatably connected to a connecting rod (16), and one end of the connecting rod (16) is fixedly connected to the hinge ear plate (8).

5. The fan-shaped pouring gate device on the top of the tunnel secondary lining trolley according to claim 3, characterized in that: A plurality of mounting holes (18) are provided inside the flat spring washer (7), and fixing screws (14) are passed through the internal threads of the mounting holes (18). The fixing screws (14) are used to connect the hydraulic cylinder (6) and the flat spring washer (7).

6. The fan-shaped pouring gate device on the top of the tunnel secondary lining trolley according to claim 3, characterized in that: A clearance hole (17) is provided inside the flat spring washer (7), and a connecting flange (3) is provided at one end of the feed pipe (2).

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