Anti-blocking tunnel construction concrete spraying device

Abstract

The utility model relates to the technical field of tunnel construction concrete spraying, and discloses an anti-blocking tunnel construction concrete spraying device which comprises a mixing tank body, the front face of the mixing tank body is fixedly connected with a water inlet pipe, the top of the mixing tank body is fixedly connected with a feeding pipe, and the left end of the mixing tank body is in threaded connection with a detachable cover plate. The rear end of the mixing tank body is fixedly connected with an armrest frame, and the surface of the armrest frame is rotatably connected with moving wheels. Concrete can be stably conveyed to the injection pipe from the mixing tank body through the cooperation of the valve and the conveying pump, the valve can control the outflow amount of the concrete, the conveying pump provides enough power to inject the concrete to the tunnel wall through the injection pipe, and the injection pipe penetrates through the supporting vertical plate and extends to one side. The accuracy of the spraying direction is guaranteed, the supporting vertical plate provides certain support for the spraying pipe, and the situation that the spraying effect is affected due to the fact that the spraying pipe shakes in the spraying process is prevented.

Description

Technical Field

[0001] This utility model relates to the field of concrete spraying technology in tunnel construction, and in particular to a concrete spraying device for tunnel construction that prevents blockage. Background Technology

[0002] A tunnel construction concrete spraying system is a device used in tunnel construction to spray concrete material onto the inner wall of a tunnel. This system typically consists of a concrete pressurization component, a work vehicle, and a pressure stabilizing device, effectively and evenly spraying concrete material onto the tunnel wall to form a robust support layer. High operational efficiency: Tunnel construction concrete spraying systems are usually equipped with high-efficiency pumping systems and quick-reversing technology, significantly improving construction efficiency. For example, Hunan Zhengxun Heavy Industry's ZXP4017 wet spraying robot can spray 40 cubic meters of concrete per hour, significantly reducing downtime and making it suitable for high-intensity operations.

[0003] An existing anti-clogging concrete spraying device for tunnel construction is prone to concrete solidification inside the device during actual operation and use, which affects the device's operation. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a concrete spraying device for tunnel construction that prevents blockage.

[0005] This utility model is achieved by the following technical solution: a concrete spraying device for tunnel construction that prevents blockage, including a mixing tank, a water inlet pipe fixedly connected to the front of the mixing tank, a feed pipe fixedly connected to the top of the mixing tank, a disassembly cover plate threadedly connected to the left end of the mixing tank, a handrail fixedly connected to the rear end of the mixing tank, and a moving wheel rotatably connected to the surface of the handrail.

[0006] A support plate is fixedly connected to the bottom of the mixing tank, a valve is fixedly connected to the bottom of the mixing tank, a conveying pump is fixedly connected to the front of the valve, a spray pipe is fixedly connected to the output end of the conveying pump, a drive motor is fixedly connected to the top of the mixing tank, a mixing roller is fixedly connected to the output end of the drive motor, a fixed bracket is fixedly connected to the front of the mixing tank, an auxiliary support plate is fixedly connected to the front of the fixed bracket, and a limit ring is snapped into the inside of the auxiliary support plate.

[0007] With the above technical solution, construction workers can easily push the device to the location where sprayed concrete is needed, reducing the difficulty of manual handling and improving work efficiency. Especially in complex construction environments such as tunnels, the convenient mobility helps to quickly adjust the working position.

[0008] As a further improvement to the above solution, the handrail is located at the rear end of the disassembly cover, the delivery pump is located at the bottom of the mixing tank, and the injection pipe extends through the support plate to one side.

[0009] The above technical solution, with the threaded disassembly cover plate on the left end of the mixing tank, facilitates the cleaning and maintenance of the inside of the mixing tank. After a long period of concrete spraying, concrete may remain inside the mixing tank. The threaded disassembly cover plate can be easily removed, making it easy to thoroughly clean the inside and prevent concrete from drying and causing blockages in the tank.

[0010] As a further improvement to the above scheme, the mixing roller is located inside the mixing tank, and the number of auxiliary support plates and limiting rings is set to two, with the two auxiliary support plates and limiting rings symmetrically distributed on the left and right sides with the mixing tank as the center.

[0011] As a further improvement to the above solution, the number of the moving wheels is set to two, and the two moving wheels are symmetrically distributed on the left and right sides with the handrail as the center, and the moving wheels are located at the bottom of the mixing tank.

[0012] As a further improvement to the above solution, the disassembly cover is located at the left end of the fixed bracket, the spray pipe is located at the bottom of the water inlet pipe, and the fixed bracket is located at the bottom of the water inlet pipe.

[0013] As a further improvement to the above solution, the auxiliary support plate is located at the bottom of the water inlet pipe, the limiting retaining ring is located at the bottom of the water inlet pipe, and the limiting retaining ring is located at the front of the mixing tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention ensures that concrete is stably transported from the mixing tank to the spraying pipe by coordinating a valve and a delivery pump. The valve controls the outflow of concrete, while the delivery pump provides sufficient power to spray the concrete onto the tunnel wall through the spraying pipe. The spraying pipe extends to one side through the supporting plate, ensuring the accuracy of the spraying direction. The supporting plate also provides support for the spraying pipe, preventing it from shaking during spraying and affecting the spraying effect. The fixed bracket, auxiliary support plate, and limiting ring located at the bottom of the water inlet pipe stabilize and support the front structure of the entire device, helping to maintain the stability of the mixing tank during the spraying process.

[0016] This invention uses a mixing roller to continuously stir and mix the concrete within the mixing tank, which helps prevent the sedimentation or clumping of sand and gravel particles in the concrete, thus avoiding blockages inside the mixing tank. Uniform mixing allows the concrete to maintain good fluidity, ensuring that it can be smoothly sprayed through the delivery pump and spray pipe when the valve is opened. The delivery pump provides stable power, which can continuously and stably push the concrete through the spray pipe, preventing the concrete from accumulating and causing blockages due to insufficient power within the spray pipe. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the frontal anatomical structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0021] Figure 5 This is a schematic diagram of the right-side structure of the present invention.

[0022] Explanation of key symbols:

[0023] 1. Mixing tank; 2. Water inlet pipe; 3. Feed pipe; 4. Removable cover plate; 5. Handrail; 6. Casters; 7. Support plate; 8. Valve; 9. Conveying pump; 10. Injection pipe; 11. Drive motor; 12. Mixing roller; 13. Fixed bracket; 14. Auxiliary support plate; 15. Limiting ring. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example:

[0026] Please combine Figure 1-5 This embodiment of a tunnel construction concrete spraying device for preventing blockage includes a mixing tank 1, a water inlet pipe 2 fixedly connected to the front of the mixing tank 1, a feed pipe 3 fixedly connected to the top of the mixing tank 1, a disassembly cover plate 4 threadedly connected to the left end of the mixing tank 1, a handrail 5 fixedly connected to the rear end of the mixing tank 1, and a moving wheel 6 rotatably connected to the surface of the handrail 5.

[0027] A support plate 7 is fixedly connected to the bottom of the mixing tank 1. A valve 8 is fixedly connected to the bottom of the mixing tank 1. A delivery pump 9 is fixedly connected to the front of the valve 8. A spray pipe 10 is fixedly connected to the output end of the delivery pump 9. A drive motor 11 is fixedly connected to the top of the mixing tank 1. A mixing roller 12 is fixedly connected to the output end of the drive motor 11. A fixed bracket 13 is fixedly connected to the front of the mixing tank 1. An auxiliary support plate 14 is fixedly connected to the front of the fixed bracket 13. A limit ring 15 is engaged inside the auxiliary support plate 14. By setting the cooperation between the valve 8 and the delivery pump 9, it is ensured that concrete can be stably delivered from the mixing tank 1. At the injection pipe 10, valve 8 controls the outflow of concrete, while delivery pump 9 provides sufficient power to spray concrete onto the tunnel wall through the injection pipe 10. The injection pipe 10 extends to one side through the support plate 7, ensuring the accuracy of the injection direction. The support plate 7 also provides some support for the injection pipe 10, preventing it from shaking during the injection process and affecting the injection effect. The fixed bracket 13, auxiliary support plate 14, and limiting ring 15 located at the bottom of the water inlet pipe 2 play a stabilizing and supporting role in the front structure of the entire device. Their presence helps to maintain the stability of the mixing tank 1 during the injection process.

[0028] Construction workers can easily push the device to the location where sprayed concrete is needed, reducing the difficulty of manual handling and improving work efficiency. Especially in complex construction environments such as tunnels, the convenient mobility helps to quickly adjust the working position.

[0029] The handrail 5 is located at the rear end of the disassembly cover 4, the delivery pump 9 is located at the bottom of the mixing tank 1, and the injection pipe 10 extends to one side through the support plate 7.

[0030] The threaded disassembly cover 4 on the left end of the mixing tank 1 facilitates cleaning and maintenance of the inside of the mixing tank 1. After a long period of concrete spraying, concrete may remain inside the mixing tank 1. The threaded disassembly cover 4 can be easily removed to facilitate thorough cleaning of the inside and prevent concrete from drying and causing blockages in the tank.

[0031] The mixing roller 12 is located inside the mixing tank 1. The number of auxiliary support plates 14 and limiting rings 15 is set to two, and the two auxiliary support plates 14 and limiting rings 15 are symmetrically distributed on the left and right sides with the mixing tank 1 as the center.

[0032] The number of moving wheels 6 is set to two, and the two moving wheels 6 are symmetrically distributed on the left and right sides with the handrail 5 as the center. The moving wheels 6 are located at the bottom of the mixing tank 1.

[0033] The cover plate 4 is located at the left end of the fixed bracket 13. The spray pipe 10 is located at the bottom of the water inlet pipe 2. The fixed bracket 13 is located at the bottom of the water inlet pipe 2. By setting the mixing roller 12 to continuously stir and mix in the mixing tank 1, it helps to prevent the sedimentation or clumping of sand and gravel particles in the concrete, thereby avoiding blockage inside the mixing tank 1. Uniform mixing can keep the concrete in good fluidity, ensuring that it can be smoothly sprayed through the delivery pump 9 and the spray pipe 10 when the valve 8 is opened. The delivery pump 9 provides stable power, which can continuously and stably push the concrete through the spray pipe 10, avoiding the concrete from stagnating and accumulating in the spray pipe 10 due to insufficient power, which would cause blockage.

[0034] The auxiliary support plate 14 is located at the bottom of the water inlet pipe 2, the limiting ring 15 is located at the bottom of the water inlet pipe 2, and the limiting ring 15 is located at the front of the mixing tank 1.

[0035] The implementation principle of the anti-clogging tunnel construction concrete spraying device in this embodiment is as follows: By cooperating with the valve 8 and the delivery pump 9, the concrete is stably transported from the mixing tank 1 to the spraying pipe 10. The valve 8 controls the concrete outflow, while the delivery pump 9 provides sufficient power to spray the concrete through the spraying pipe 10 onto the tunnel wall. The spraying pipe 10 extends to one side through the supporting plate 7, ensuring the accuracy of the spraying direction. The supporting plate 7 also provides support for the spraying pipe 10, preventing it from shaking during spraying and affecting the spraying effect. The fixed bracket 13, auxiliary support plate 14, and limiting ring 15 are located at the bottom of the water inlet pipe 2. The mixing rollers 12 provide stability and support to the front structure of the entire device. Their presence helps maintain the stability of the mixing tank 1 during the spraying process. By continuously stirring and mixing the concrete in the mixing tank 1 using the mixing rollers 12, it helps prevent the sedimentation or clumping of sand and gravel particles in the concrete, thereby avoiding blockage inside the mixing tank 1. Uniform mixing can maintain good fluidity of the concrete, ensuring that it can be smoothly sprayed through the delivery pump 9 and the spraying pipe 10 when the valve 8 is opened. The delivery pump 9 provides stable power, which can continuously and stably push the concrete through the spraying pipe 10, preventing the concrete from stagnating and accumulating in the spraying pipe 10 due to insufficient power, thus avoiding blockage.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A clog resistant tunneling concrete injection device, characterized by, The mixture includes a mixing tank (1), a water inlet pipe (2) is fixedly connected to the front of the mixing tank (1), a feed pipe (3) is fixedly connected to the top of the mixing tank (1), a disassembly cover plate (4) is threadedly connected to the left end of the mixing tank (1), a handrail (5) is fixedly connected to the rear end of the mixing tank (1), and a moving wheel (6) is rotatably connected to the surface of the handrail (5). The bottom of the mixing tank (1) is fixedly connected to a support plate (7), the bottom of the mixing tank (1) is fixedly connected to a valve (8), the front of the valve (8) is fixedly connected to a conveying pump (9), the output end of the conveying pump (9) is fixedly connected to a spray pipe (10), the top of the mixing tank (1) is fixedly connected to a drive motor (11), the output end of the drive motor (11) is fixedly connected to a mixing roller (12), the front of the mixing tank (1) is fixedly connected to a fixed bracket (13), the front of the fixed bracket (13) is fixedly connected to an auxiliary support plate (14), and the inside of the auxiliary support plate (14) is engaged with a limit ring (15).

2. A non-clogging tunneling concrete jetting apparatus as defined in claim 1, wherein: The handrail (5) is located at the rear end of the disassembly cover (4), the delivery pump (9) is located at the bottom of the mixing tank (1), and the injection pipe (10) extends to one side through the support plate (7).

3. A non-clogging tunneling concrete jetting apparatus as defined in claim 1 wherein: The mixing roller (12) is located inside the mixing tank (1). The number of auxiliary support plates (14) and limiting rings (15) is set to two, and the two auxiliary support plates (14) and limiting rings (15) are symmetrically distributed on the left and right sides with the mixing tank (1) as the center.

4. A non-clogging tunneling concrete jetting apparatus as defined in claim 1 wherein: The number of the moving wheels (6) is set to two, and the two moving wheels (6) are symmetrically distributed on the left and right sides with the handrail (5) as the center. The moving wheels (6) are located at the bottom of the mixing tank (1).

5. A non-clogging tunnel construction concrete shooting device as defined in claim 1 wherein: The disassembly cover (4) is located at the left end of the fixed bracket (13), the spray pipe (10) is located at the bottom of the water inlet pipe (2), and the fixed bracket (13) is located at the bottom of the water inlet pipe (2).

6. An anti-jamming tunneling concrete injection apparatus as defined in claim 1, wherein: The auxiliary support plate (14) is located at the bottom of the water inlet pipe (2), the limiting ring (15) is located at the bottom of the water inlet pipe (2), and the limiting ring (15) is located on the front of the mixing tank (1).

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