Connection channel molded concrete pouring device

Abstract

The utility model relates to the technical field of connection channel pouring, in particular to a connection channel molded concrete pouring device which comprises a shield tunnel, a connection channel is arranged on one side of the shield tunnel, a drill hole is formed in the top of the connection channel, the drill hole is communicated with the connection channel and the ground, a pouring pipeline is connected to the drill hole in a penetrating mode, and the pouring pipeline is communicated with the shield tunnel. A base is arranged at the top of the pouring pipeline, the base is fixedly installed on the ground, and a positioning column is fixedly connected to the surface of the base. The motor output shaft drives the stirring shaft to rotate, and the stirring shaft drives the stirring rod to rotate on concrete in the funnel, so that the concrete is stirred, the segregation phenomenon of the concrete on the funnel is avoided, the flowability of the concrete is guaranteed, the pipe is not easy to block, and the concrete can be normally conveyed in a pouring pipeline; and the strength and compactness of the secondary lining concrete are also ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting passage pouring technology field, concretely is a connecting passage moulding concrete pouring device. BACKGROUND

[0002] The metro specification requires that when the shield tunnel length is greater than 600m, the connecting passage must be set, the connecting passage to the station fire evacuation passage distance should not be greater than 600m, and the connecting passage is usually set near the tunnel midpoint. In the actual construction process, the shield tunnel with a length of about 1000m is often encountered, and the connecting passage must be set at a position about 500m away from the station.

[0003] In the past, when pouring the secondary lining concrete of the connecting passage, a trailer pump + a conveying pipeline (one section of pipeline length is 1-3m, with 90°, 135° elbows) is usually used to complete the pouring. However, in the above method, the pipeline length is often too long, causing the concrete to block the pipeline, and each time the pipeline is dredged, a large amount of manpower, material resources and time are consumed. If the problem is not handled in time, the concrete will appear to be segregated or initial setting, which will further affect the construction quality of the secondary lining concrete of the connecting passage. The shield tunnel interval connecting passage secondary lining concrete pouring device of the Chinese utility model patent with the application number CN201920644408.0 connects the ground and the secondary lining formwork inside the shield tunnel interval connecting passage by using a pouring pipeline, and the concrete can be directly conveyed to the secondary lining formwork by the pouring pipeline to complete the pouring. It can greatly improve the construction efficiency of the secondary lining concrete. At the same time, the pump slurry amount monitor and the pump slurry pressure sensor are used to detect the pump slurry amount and the pump slurry pressure in real time, so that the parameters of the two can be adjusted to prevent the problems of concrete blocking the pipeline, segregation and the like, and improve the concrete construction quality. However, the pouring device uses a hopper to output the concrete to the inside of the pouring pipeline, and the concrete is prone to segregation on the hopper, which reduces the flowability of the concrete, easily blocks the pipeline, affects the conveying, and also reduces the strength and density of the secondary lining concrete. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a connecting passage moulding concrete pouring device to solve the problem that the existing pouring device is prone to segregation of concrete on the hopper during pouring, which reduces the flowability of the concrete, easily blocks the pipeline, affects the conveying, and also reduces the strength and density of the secondary lining concrete.

[0005] To achieve the above object, the utility model provides following technical scheme, a kind of connecting passage formwork concrete pouring device: including shield tunnel, the side of the shield tunnel is provided with connecting passage, the top of the connecting passage is provided with drill hole, and drill hole is connected with connecting passage and ground, and pouring pipeline is connected on the top of drill hole, the top of pouring pipeline is provided with pedestal, and pedestal is fixedly installed on ground, the surface of pedestal is fixedly connected with positioning column, the surface of positioning column is inserted with positioning cylinder, the surface of positioning cylinder is fixedly connected with hopper, the bottom of hopper is fixedly connected with input pipe, the surface of input pipe is fixedly connected with support frame, the surface of support frame is fixedly connected with motor, the output shaft of motor is fixedly connected with stirring shaft, the surface of stirring shaft is fixedly connected with stirring rod.

[0006] Preferably, the surface of the base is provided with a guide mechanism, the guide mechanism comprises a bolt, the bolt is threadedly connected to the surface of the base, a mounting plate is connected to the surface of the bolt, the mounting plate is fixedly connected to the surface of the mounting frame, the mounting frame is fixedly connected to the surface of the air cylinder, the piston rod of the air cylinder is fixedly connected to the moving frame, and the surface of the moving frame is rotatably connected to the limiting roller.

[0007] Preferably, the base is rectangular, a circular hole is formed in the surface of the base, the pouring pipeline penetrates through the circular hole of the base and the pouring pipeline at the same time, the top of the pouring pipeline is exposed above the ground, and the pouring pipeline is located on the secondary lining formwork of the connecting passage.

[0008] Preferably, the input pipe is inserted into the top of the pouring pipeline, the positioning column and the positioning cylinder are provided with four groups, and the base supports the hopper through the positioning column and the positioning cylinder.

[0009] Preferably, the motor drives the stirring shaft to rotate on the support frame through the output shaft, the stirring shaft drives the stirring rod to rotate synchronously on the hopper, the stirring rod is provided with multiple groups, and the multiple groups of stirring rods are evenly distributed on the stirring shaft.

[0010] Preferably, a threaded groove is formed in the surface of the base, the threaded groove of the base is threadedly connected with the bolt penetrating through the mounting plate, and the mounting frame is limited on the surface of the base by the bolt through the mounting plate.

[0011] Preferably, the air cylinder drives the moving frame and the limiting roller to move on the mounting frame through the piston rod, the limiting roller is provided with four groups, and the four groups of limiting rollers are staggered.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The pouring device, the motor output shaft drives the stirring shaft to rotate, the stirring shaft drives the stirring rod to rotate on the concrete of the hopper, realizes the stirring of the concrete, avoids the segregation phenomenon of the concrete on the hopper, further guarantees the fluidity of the concrete, is not easy to block the pipe, can be normally conveyed in the pouring pipeline, further guarantees the strength and the compactness of the secondary lining concrete.

[0014] 2. The pouring device, the bolt is penetrated through the mounting plate and is screwed on the threaded groove of the base, the bolt limits the mounting frame on the surface of the base through the mounting plate, at this time, the cylinder on the mounting frame moves the moving frame through the piston rod, the moving frame drives the limiting roller to move to contact the surface of the pouring pipeline, so that the pouring pipeline is limited by the four limiting rollers when penetrating the drill hole, and the limiting roller reduces the friction of the pouring pipeline through rotation, avoids damage when the pouring pipeline penetrates the drill hole, and guarantees the safety during installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole layout schematic view of the structure of the utility model;

[0016] Figure 2 It is the front view three-dimensional schematic view of the base structure of the utility model;

[0017] Figure 3 It is the front view three-dimensional explosion schematic view of the base structure of the utility model;

[0018] Figure 4 It is the front view three-dimensional schematic view of the guide mechanism of the utility model;

[0019] Figure 5 It is the front view three-dimensional schematic view of the hopper structure of the utility model.

[0020] In the drawing: 1, shield tunnel; 11, connecting passage; 12, drill hole; 2, pouring pipeline; 21, base; 22, positioning column; 23, positioning cylinder; 24, hopper; 25, input pipe; 26, support frame; 27, motor; 28, stirring shaft; 29, stirring rod; 3, bolt; 31, mounting plate; 32, support frame; 33, cylinder; 34, moving frame; 35, limiting roller. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-5 The utility model provides an embodiment:

[0022] A kind of connecting passage formwork concrete pouring device:Including shield tunnel 1, one side of shield tunnel 1 is provided with connecting passage 11, the top of connecting passage 11 is provided with drill hole 12, and drill hole 12 is communicated connecting passage 11 and ground, drill hole 12 is excavated using drilling machine, pouring pipeline 2 is connected on drill hole 12, pouring pipeline 2 top is provided with base 21, and base 21 is fixedly installed on ground, positioning column 22 is fixedly connected on the surface of base 21, positioning cylinder 23 is inserted on the surface of positioning column 22, hopper 24 is fixedly connected on the surface of positioning cylinder 23, input pipe 25 is fixedly connected on the bottom of hopper 24, support frame 26 is fixedly connected on the surface of input pipe 25, motor 27 is fixedly connected on the surface of support frame 26, stirring shaft 28 is fixedly connected on the output shaft of motor 27, stirring rod 29 is fixedly connected on the surface of stirring shaft 28, the pouring device will guide concrete into hopper 24, hopper 24 sends concrete into pouring pipeline 2, pouring pipeline 2 sends concrete to the second lining formwork of connecting passage 11 again, in order to avoid the segregation of concrete on hopper 24, stirring rod 29 is used to stir the concrete on hopper 24, to prevent concrete segregation.

[0023] Further, the surface of base 21 is provided with a guide mechanism, the guide mechanism includes a bolt 3, the bolt 3 is threadedly connected to the surface of the base 21, the surface of the bolt 3 is connected with a mounting plate 31, the surface of the mounting plate 31 is fixedly connected with a mounting frame 32, the surface of the mounting frame 32 is fixedly connected with a pneumatic cylinder 33, the piston rod of the pneumatic cylinder 33 is fixedly connected with a moving frame 34, the surface of the moving frame 34 is rotatably connected with a limiting roller 35, the diameter of the drill hole 12 is larger than the pouring pipeline 2, when the pouring pipeline 2 penetrates the drill hole 12, it will touch the sidewall of the drill hole 12, causing damage to the drill hole 12, and then affecting the pouring efficiency, while the guide mechanism can ensure that the pouring pipeline 2 penetrates the pouring pipeline 2 smoothly, and does not contact the inner wall of the pouring pipeline 2, ensuring the safety of the pouring pipeline 2.

[0024] Further, the base 21 is rectangular, a circular hole is formed on the surface of the base 21, the pouring pipeline 2 penetrates the circular hole of the base 21 and the pouring pipeline 2 at the same time, the top of the pouring pipeline 2 protrudes out of the ground, the pouring pipeline 2 is located on the second lining formwork of the connecting passage 11, a pressure sensor and a pump slurry quantity monitor are arranged in the pouring pipeline 2, the pouring pipeline 2 sends concrete to the second lining formwork of the connecting passage 11 through the drill hole 12, for the prior art of the comparison patent, no more description is made.

[0025] Further, the input pipe 25 is inserted at the top of the pouring pipe 2, the positioning column 22 and the positioning cylinder 23 are provided with four groups, the base 21 supports the hopper 24 through the positioning column 22 and the positioning cylinder 23, which guarantees the stability of the hopper 24 on the base 21, and the hopper 24 sends the concrete into the pouring pipe 2 through the input pipe 25, and a large amount of concrete is conveniently input into the pouring pipe 2 through the hopper 24, thereby improving the input efficiency of the concrete.

[0026] Further, the motor 27 drives the stirring shaft 28 to rotate on the support frame 26 through the output shaft, the stirring shaft 28 drives the stirring rods 29 to rotate synchronously on the hopper 24, the stirring rods 29 are provided in multiple groups and are uniformly distributed on the stirring shaft 28, and the lengths of the stirring rods 29 gradually increase from low to high, so that the stirring rods 29 can fully stir the concrete on the hopper 24.

[0027] Further, a threaded groove is formed in the surface of the base 21, the bolt 3 is threadedly connected with the threaded groove penetrating through the mounting plate 31 and the base 21, the mounting plate 31 limits the mounting frame 32 on the surface of the base 21 through the bolt 3, thereby completing the installation of the mounting frame 32 on the base 21, the cylinder 33, the moving frame 34 and the limiting roller 35 can be quickly disassembled and installed through the mounting frame 32, which is convenient for use, and the center of the pouring pipe 2 and the center of the drill hole 12 are on the same vertical line, the guide mechanism can limit the position of the pouring pipe 2 in the drill hole 12, and guarantee that the center of the pouring pipe 2 and the center of the drill hole 12 are also on the same vertical line.

[0028] Further, the cylinder 33 drives the moving frame 34 and the limiting roller 35 to move on the mounting frame 32 through the piston rod, the limiting roller 35 is provided in four groups and is staggered between the four groups, that is, one high and one low, so as to avoid touching between the multiple groups of limiting rollers 35, and when the pouring pipe 2 penetrates the drill hole 12, the limiting roller 35 is driven to rotate on the moving frame 34, thereby reducing the friction of the pouring pipe 2, and the four groups of limiting rollers 35 limit the position of the pouring pipe 2 in the drill hole 12.

[0029] Working principle: the positioning cylinder 23 is inserted on the positioning column 22, at this time the input pipe 25 is inserted at the top of the pouring pipe 2, the concrete is poured into the hopper 24, the hopper 24 outputs the concrete into the pouring pipe 2 through the input pipe 25, the pouring pipe 2 outputs the concrete onto the secondary lining formwork, the motor 27 drives the stirring shaft 28 to rotate through the output shaft, the stirring shaft 28 drives the stirring rods 29 to rotate on the concrete in the hopper 24, thereby realizing the stirring of the concrete and avoiding the segregation of the concrete in the hopper 24, thereby guaranteeing the fluidity of the concrete, preventing the pipe from being blocked, enabling normal conveying in the pouring pipe 2, guaranteeing the strength and compactness of the secondary lining concrete.

[0030] The bolt 3 is penetrated through the mounting plate 31, and is screwed on the threaded groove of the base 21, and the bolt 3 limits the mounting frame 32 on the surface of the base 21 through the mounting plate 31, at this time, the cylinder 33 on the mounting frame 32 moves the moving frame 34 through the piston rod, the moving frame 34 drives the limiting roller 35 to move and contact on the surface of the pouring pipeline 2, so that the pouring pipeline 2 is limited by the four groups of limiting rollers 35 when penetrating the drill hole 12, and the limiting roller 35 reduces the friction of the pouring pipeline 2 through rotation, avoids damage to the pouring pipeline 2 when penetrating the drill hole 12, and guarantees the safety in the installation process.

Claims

1. A concrete casting device for a connecting passage, comprising a shield tunnel, wherein a connecting passage is provided on one side of the shield tunnel, and a borehole is provided at the top of the connecting passage, the borehole connecting the connecting passage and the ground, characterized in that: A pouring pipe is connected through the borehole. A base is provided at the top of the pouring pipe and is fixedly installed on the ground. A positioning column is fixedly connected to the surface of the base. A positioning cylinder is inserted into the surface of the positioning column. A funnel is fixedly connected to the surface of the positioning cylinder. An input pipe is fixedly connected to the bottom of the funnel. A support frame is fixedly connected to the surface of the input pipe. A motor is fixedly connected to the surface of the support frame. A stirring shaft is fixedly connected to the output shaft of the motor. A stirring rod is fixedly connected to the surface of the stirring shaft.

2. The concrete casting device for a connecting passage according to claim 1, characterized in that: A guide mechanism is provided on the surface of the base. The guide mechanism includes a bolt, which is threaded onto the surface of the base. A mounting plate is perforated on the surface of the bolt. A mounting bracket is fixedly connected to the surface of the mounting plate. A cylinder is fixedly connected to the surface of the mounting bracket. A movable frame is fixedly connected to the piston rod of the cylinder. A limit roller is rotatably connected to the surface of the movable frame.

3. The concrete casting device for a connecting passage according to claim 1, characterized in that: The base is rectangular, and a circular hole is formed on the surface of the base. The casting pipe passes through both the circular hole of the base and the casting pipe. The top of the casting pipe protrudes above the ground, and the casting pipe is located on the secondary lining template of the connecting passage.

4. The concrete casting device for a connecting passage according to claim 3, characterized in that: The input pipe is inserted into the top of the pouring pipe, and four sets of positioning columns and positioning cylinders are provided. The base supports the funnel through the positioning columns and positioning cylinders.

5. The concrete casting device for a connecting passage according to claim 4, characterized in that: The motor drives the stirring shaft to rotate on the support frame via the output shaft. The stirring shaft drives the stirring rods to rotate synchronously on the funnel. There are multiple sets of stirring rods, and the multiple sets of stirring rods are evenly distributed on the stirring shaft.

6. The concrete casting device for a connecting passage according to claim 2, characterized in that: The base has a threaded groove on its surface. The bolts pass through the threaded grooves of the mounting plate and the base and are threaded together. The mounting plate uses bolts to constrain the mounting bracket to the surface of the base.

7. The concrete casting device for a connecting passage according to claim 6, characterized in that: The cylinder drives the moving frame and the limiting roller to move on the mounting frame via the piston rod. There are four sets of limiting rollers, and the four sets of limiting rollers are arranged alternately in pairs.

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