Spiral concrete conveying device

Abstract

The utility model relates to the technical field of concrete transportation, in particular to a spiral concrete conveying device which comprises a motor, a conveying pipe, a spiral blade and a spiral shaft. The motor is used for driving the spiral shaft, spiral blades are evenly arranged on the spiral shaft, the conveying pipe is arranged outside the spiral shaft, the feeding hopper is arranged at the lower end of the conveying pipe, and the discharging port is formed in the upper end. Cleaning holes are formed in the spiral shaft, and a water feeding opening is formed in the bottom of the spiral shaft. When concrete is poured, the motor rotates to drive the spiral shaft and the spiral blades to rotate, and the concrete is conveyed to the discharging port from the feeding hopper and then discharged through the discharging port. After concrete pouring is completed, external pressurized water is connected into the water feeding opening, and the pressurized water passes through the cleaning holes in the spiral shaft to wash the conveying pipe, the spiral blades and other parts. Residual concrete can be effectively removed through the cleaning device, the concrete is prevented from being attached and solidified in the conveying device, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of concrete transportation technology, and specifically to a screw conveyor for concrete. Background Technology

[0002] In construction projects, concrete pouring is required in many places, especially for secondary structures. Pump trucks and ground pumps cannot be used for this, so manual pouring is time-consuming, labor-intensive, and inefficient. Furthermore, after prolonged operation, existing concrete screw conveyors can accumulate solidified concrete inside, which cannot be effectively removed, leading to jamming and ultimately equipment damage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a spiral conveying concrete device that can effectively remove residual concrete and prevent concrete from adhering to and solidifying inside the conveying device.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A screw conveyor for concrete includes a motor, a conveying pipe, screw blades, and a screw shaft. The motor drives the screw shaft, which has screw blades evenly distributed on it. The conveying pipe is located outside the screw shaft, with a feed hopper at its lower end and a discharge port at its upper end. The screw shaft has cleaning holes and a water inlet at its bottom. When pouring concrete, the motor rotates, driving the screw shaft and screw blades to rotate, conveying the concrete from the feed hopper to the discharge port, and then discharging it through the discharge port. After the concrete pouring is complete, pressurized water is connected to the water inlet, and the pressurized water flows through the cleaning holes on the screw shaft to flush the conveying pipe and screw blades.

[0006] Furthermore, a drain outlet is provided on the side of the conveying pipe, which is close to the bottom of the conveying pipe. A door is provided outside the drain outlet, and the flushing wastewater is discharged when the drain outlet door is opened.

[0007] Furthermore, a discharge hose is installed at the outer end of the discharge port.

[0008] Furthermore, the delivery pipe is mounted on a support assembly, which has an angle adjustment function.

[0009] Furthermore, the support assembly includes a horizontal brace, a support frame, and a fixed bracket. The two ends of the horizontal brace are hinged to the support frame and the side of the conveying pipe, respectively, and the upper part of the support frame is hinged to the side of the conveying pipe. The fixed bracket is fixed to the side of the conveying pipe. Both the horizontal brace and the support frame are telescopic rods. The angle of the conveying pipe relative to the ground can be adjusted by extending or shortening the horizontal brace and / or the support frame, thereby adjusting the height of the discharge port.

[0010] Furthermore, the telescopic rod is provided with several fixing holes, into which adjusting bolts are screwed. When it is necessary to adjust the height of the discharge port, the adjusting bolts are loosened to adjust the length of the telescopic rod.

[0011] Furthermore, the lower part of the support frame and the fixed bracket is provided with a moving device.

[0012] Furthermore, the horizontal brace is connected to the support frame via a movable pin. The support frame and the horizontal brace can be rotated by pulling out the movable pin.

[0013] Furthermore, the spiral shaft is connected to the bottom of the conveying pipe via a bearing, and a sealing disc is provided on the upper part of the bearing. The sealing disc is tightly connected to the conveying pipe around its perimeter, and a sealing ring is used to seal the spiral shaft where it passes through the sealing disc to prevent concrete leakage.

[0014] Furthermore, the output wheel of the electric motor is connected to the rotating wheel fixedly connected to the end of the helical shaft by a V-belt.

[0015] Technical effects of this utility model:

[0016] Compared with the prior art, the spiral concrete conveying device of this utility model can effectively remove residual concrete through a cleaning device, prevent concrete from adhering and solidifying inside the conveying device, and extend the service life of the device; when pouring secondary structure concrete, it can make the concrete conveying more convenient and faster, reduce the labor intensity of workers, and improve work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the structural principle of the spiral concrete conveying device of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged view of part A;

[0019] Figure 3 This is a top view of the spiral concrete conveying device of this utility model;

[0020] Figure 4 This is a schematic diagram of the support device structure of this utility model.

[0021] In the diagram, 1. Electric motor; 2. Conveying pipe; 3. Spiral blade; 4. Spiral shaft; 5. Feed hopper; 6. Sealing disc; 7. Movable pin; 8. Water inlet; 9. Casters; 10. Support frame; 11. Adjusting bolt; 12. Discharge hose; 13. Discharge port; 14. Cleaning hole; 15. Cabin door; 16. Horizontal brace; 17. Fixed bracket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment relates to a screw conveyor for concrete, which includes a motor 1, a conveying pipe 2, a screw blade 3, and a screw shaft 4.

[0025] The output wheel of the motor 1 is fixedly connected to the rotating wheel at the end of the spiral shaft 4 by a V-belt. To prevent the V-belt from slipping due to looseness, an adjustable base can be provided between the motor 1 and the conveying pipe 2 to adjust the distance between the output wheel of the motor 2 and the rotating wheel of the spiral shaft 4. Spiral blades 3 are evenly arranged on the spiral shaft 4. In this embodiment, the spiral blades 3 are prefabricated and welded to the spiral shaft 4 using 2mm thick steel plates. The gap between the spiral blades 3 and the wall of the conveying pipe 2 is approximately 1-2mm. The bottom and top of the spiral shaft 4 are fixed inside the conveying pipe 2 using bearings and bearing sleeves. A conveying pipe 2 is provided outside the spiral shaft 4. A hopper 5 is provided at the lower end of the conveying pipe 2, and a discharge port 13 is provided at the upper end. A discharge hose 12 (such as...) is installed at the outer end of the discharge port 13. Figure 1 In this embodiment, the feed hopper 5 is made of 2mm thick steel plate, with an upper opening size of 450mm*450mm and a lower opening (where it connects to the conveying pipe 2) size of 150mm*250mm. The upper opening is horizontal. The discharge port 13 in this embodiment is made of DN125 galvanized steel pipe and is welded perpendicularly to the conveying pipe 2. When pouring concrete, the motor 1 rotates, driving the screw shaft 4 and screw blades 3 to rotate, conveying concrete from the feed hopper 5 to the discharge port 13, and then pouring it into the component through the discharge hose 12.

[0026] The spiral shaft 4 is made of DN40 steel pipe, and cleaning holes 14 with a diameter of 1mm are evenly arranged on the steel pipe (e.g., ...). Figure 2 As shown, the bottom of the spiral shaft 4 is equipped with a DN20 cleaning inlet 8. A drain outlet and a hatch 15 are provided on the side of the conveying pipe 2. The drain outlet is close to the bottom of the conveying pipe 2, and the hatch 15 is located outside the drain outlet. After the concrete is poured, pressurized water is connected to the inlet 8. The pressurized water passes through the cleaning hole 14 on the spiral shaft 4 to flush the conveying pipe 2 and the spiral blades 3. The drain outlet hatch 15 is opened to discharge the flushing wastewater. Before the concrete is poured, the hatch 15 is closed to prevent mortar leakage.

[0027] like Figure 1-3As shown, the conveying pipe 2 is mounted on the support assembly. In this embodiment, a DN200 galvanized steel pipe with a length of 2.8m is used. The support assembly has an angle adjustment function. Specifically, the support assembly includes a horizontal brace 16, a support frame 10, and a fixed bracket 17. The two ends of the horizontal brace 16 are hinged to the support frame 10 and the side of the conveying pipe 2, respectively. The upper part of the support frame 10 is hinged to the side of the conveying pipe 2. The fixed bracket 17 is fixed to the side of the conveying pipe 2. As a preferred embodiment, the fixed bracket 17 is arranged parallel to the conveying pipe 2. Both the horizontal brace 16 and the support frame 10 are telescopic rods. Specifically, the telescopic rod is provided with several fixing holes, and adjusting bolts 11 are screwed into the fixing holes. When it is necessary to adjust the height of the discharge port 13, the adjusting bolts 11 are loosened, and the horizontal brace 16 and / or the support frame 10 are extended or shortened to adjust the angle of the conveying pipe 2 relative to the ground, thereby adjusting the height of the discharge port 13. The support frame 10 and the fixed bracket 17 are equipped with a moving device at the bottom. The moving device consists of four moving wheels 9 with braking function. The two in front are omnidirectional wheels and the two in the back are directional wheels.

[0028] The horizontal brace 16 is connected to the support frame 10 via a movable pin 7. By pulling out the movable pin 7, the support frame 10 and the horizontal brace 16 can be rotated along the pivot on the conveying pipe 2, bringing them into contact with the pipe. This facilitates floor transfer and passage through narrow spaces (such as pre-reserved wall openings or doorways). When not in use, it reduces storage space. To reuse the pipe, simply reverse the steps.

[0029] The spiral shaft 4 is connected to the bottom of the conveying pipe 2 via a bearing. A sealing disc 6 is provided on the upper part of the bearing. The sealing disc 6 is tightly connected to the conveying pipe 2 around its perimeter. A special sealing ring is used to seal the spiral shaft 4 where it passes through the sealing disc 6. This can prevent concrete leakage, which could cause bearing corrosion and contamination, and extend the service life of the bearing.

[0030] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A screw conveying concrete device, characterized in that: The invention comprises a motor (1), a conveying pipe (2), spiral blades (3) and a spiral shaft (4); the motor (1) is used to drive the spiral shaft (4); the spiral blades (3) are evenly arranged on the spiral shaft (4); the conveying pipe (2) is arranged outside the spiral shaft (4); a material inlet hopper (5) is arranged at the lower end of the conveying pipe (2); and a material outlet (13) is arranged at the upper end; a cleaning hole (14) is arranged on the spiral shaft (4); and a water inlet (8) is arranged at the bottom of the spiral shaft (4).

2. The screw conveying concrete device according to claim 1, characterized in that: A sewage outlet is arranged on the side of the conveying pipe (2), the sewage outlet is closely attached to the bottom of the conveying pipe (2), a hatch (15) is arranged outside the sewage outlet, and the sewage outlet hatch (15) is opened to discharge the flushing sewage; a discharge hose (12) is installed at the outer end of the discharge port (13).

3. The screw conveying concrete device according to claim 1, characterized in that: A discharge hose (12) is installed at the outer end of the discharge port (13).

4. The screw conveying concrete device according to claim 1, characterized in that: The delivery pipe (2) is arranged on a support component, and the support component has an angle adjustment function.

5. The screw conveying concrete device according to claim 4, characterized in that: The support assembly comprises a horizontal support (16), a support frame (10) and a fixed support (17); the two ends of the horizontal support (16) are respectively hinged to the support frame (10) and the side of the conveying pipe (2); the upper part of the support frame (10) is hinged to the side of the conveying pipe (2); the fixed support (17) is fixed to the side of the conveying pipe (2); the horizontal support (16) and the support frame (10) both adopt telescopic rods.

6. The screw conveying concrete device according to claim 5, characterized in that: The telescopic rod is provided with a plurality of fixing holes, into which adjusting bolts (11) are screwed.

7. The screw conveying concrete device according to claim 5, characterized in that: A moving device is provided at the lower part of the support frame (10) and the fixed frame (17).

8. The screw conveying concrete device according to claim 5, characterized in that: The horizontal support (16) is connected to the support frame (10) via a movable pin (7).

9. The screw conveying concrete device according to claim 1, characterized in that: The spiral shaft (4) is connected to the bottom of the delivery pipe (2) via a bearing, a sealing disc (6) is provided on the upper part of the bearing, the sealing disc (6) is tightly connected to the delivery pipe (2) on all sides, and a sealing ring is used to seal the spiral shaft (4) passing through the sealing disc (6).

10. The screw conveying concrete device according to any one of claims 1 to 9, characterized in that: The output wheel of the motor (1) and the rotating wheel fixedly connected to the end of the screw shaft (4) are connected by a V-belt.

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