Precast beam plate concrete high-efficiency pouring device

Abstract

The utility model relates to prefabricated component construction equipment technical field, concretely is a kind of prefabricated beam slab concrete efficient pouring device, including bucket, distributing device and guide rail frame, bucket top is equipped with feed inlet, inside is equipped with spiral stirring device, bottom is conical structure and is connected to discharge pipe;Distributing device includes distributing pipe, spiral feeding device and vibrating device, distributing pipe top is equipped with feed pipe, bottom is uniformly distributed multiple pouring pipes, bottom still installs the synchronous vibrating of liftable cement vibrating rod, bucket is connected with distributing pipe between by concrete conveying hose intercommunication, its both ends are connected by flange and sealing bearing sleeve, ensure that the sealing is reliable, mobile flexible in conveying process, distributing pipe both ends are slidably installed on guide rail frame by slider and pulley structure, run smoothly, the device realizes the continuous stirring of concrete, uniform conveying and multi-point synchronous pouring, cooperate automatic vibrating function, significantly improve construction efficiency and forming quality.

Description

Technical Field

[0001] This utility model relates to the technical field of precast component construction equipment, specifically a high-efficiency concrete pouring device for precast beams and slabs. Background Technology

[0002] In bridge and building construction, the concrete pouring of precast beams is a crucial construction step, and its quality directly affects the load-bearing capacity and durability of the components. Traditional concrete pouring methods often employ manual placement of concrete combined with vibratory compaction, which suffers from high labor intensity, uneven concrete distribution, segregation, and difficulty in removing air bubbles, severely impacting concrete quality and construction efficiency. Concrete segregation and clogging problems Traditional concrete hoppers are mostly cylindrical in structure, which easily leads to concrete accumulation at the bottom, causing aggregate sedimentation and mortar to float, resulting in segregation. This segregation problem is particularly pronounced when pouring high-slump concrete (such as high-strength grades above C50), severely affecting the homogeneity of the concrete. In addition, when the amount of concrete in the hopper decreases, the bottom discharge port is easily blocked by aggregate accumulation, requiring manual cleaning and unblocking, which is time-consuming, labor-intensive, and interrupts the continuity of pouring.

[0003] Vibration and fabric disconnection In current concrete pouring processes, concrete placement and vibration are often performed in separate steps: after placement, manual vibrating is done point by point, resulting in a lack of seamless transition between processes. On the one hand, the concrete poured earlier may lose its fluidity due to excessive waiting time for vibration, leading to honeycomb and pitted surfaces; on the other hand, manual vibration is prone to under-vibration and over-vibration, especially in complex structures such as the horseshoe-shaped parts of T-beams and the webs of box girders, making it difficult to guarantee compaction. For example, statistics from a precast beam yard for a highway show that the defect repair rate of beams using traditional methods is as high as 12%, seriously affecting construction progress and costs. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a high-efficiency concrete pouring device for precast beams and slabs.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency concrete pouring device for precast beams and slabs, comprising a material bucket, a material placing device, and a guide rail frame. The top of the material bucket is provided with a feeding hopper, and a spiral mixing device is installed inside the material bucket. The bottom of the material bucket is provided with a discharge pipe. The material placing device includes a material placing pipe, a spiral conveying device, and a vibrating device. The spiral conveying device is installed inside the material placing pipe. The top of the material placing pipe is provided with a feeding pipe, and the bottom of the material placing pipe is provided with several pouring pipes. The vibrating device is installed at the bottom of the material placing pipe. A concrete conveying hose connects the discharge pipe and the feeding pipe. Both ends of the material placing pipe are slidably mounted on the guide rail frame.

[0006] Preferably, sealed bearing sleeves are fitted on the discharge pipe and the feed pipe, and the two ends of the concrete conveying hose are fixedly connected to the bearing sleeves on the discharge pipe and the feed pipe through flanges.

[0007] More preferably, the spiral mixing device includes a mixing motor and a spiral mixing blade. The mixing motor is installed on the top of the material tank, and the spiral mixing blade is installed at the output end of the mixing motor and located inside the material tank. The spiral conveying device includes a conveying motor and a spiral conveying blade. The conveying motor is installed at one end of the material distribution pipe, and the spiral conveying blade is installed at the output end of the conveying motor and located inside the material distribution pipe.

[0008] Preferably, the bottom of the material chamber of the material bucket has a conical structure.

[0009] Preferably, a motor frame is installed at the bottom of the fabric tube, a lead screw telescopic motor is fixedly installed on the motor frame, an equipment frame is installed at the bottom of the lead screw telescopic motor, a cement vibrator is fixedly installed inside the equipment frame, and the core of the cement vibrator penetrates through the bottom of the equipment frame.

[0010] More preferably, the top of the guide rail frame is provided with a slide rail and a sliding groove, the two ends of the fabric tube are slidably connected to the slide rail by a slider, and the two ends of the fabric tube are equipped with pulleys, and the pulleys are adapted to the sliding groove.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a high-efficiency concrete pouring device for precast beams and slabs, which has the following beneficial effects: This technical solution includes a material bucket, a material placing device, and a guide rail frame. Its rational structural design and convenient operation significantly improve concrete pouring efficiency and construction quality. The device continuously mixes the concrete in the bucket using a spiral mixing device to prevent segregation and ensure material uniformity. A spiral conveying device ensures uniform material delivery within the placing pipe, and multiple pouring pipes enable simultaneous multi-point pouring, improving pouring efficiency and continuity. Simultaneously, a vibrating device works in conjunction with a cement vibrator to effectively eliminate air bubbles in the concrete, improving density and molding quality.

[0012] Furthermore, the placing boom slides on the guide rail frame via a slider and pulley structure, ensuring smooth operation and precise positioning, facilitating control of the pouring position. The concrete conveying hose is connected to the bearing sleeve via a flange, ensuring reliable sealing, easy assembly and disassembly, and adaptability to various working conditions. The overall device boasts a high degree of automation, uniform material distribution, and high construction efficiency, making it suitable for various precast beam and slab concrete pouring operations, and possessing promising application prospects and widespread application value. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall equipment structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the material bucket of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the fabric tube of this utility model; In the diagram: 1. Material bucket; 2. Mixing motor; 3. Feed hopper; 4. Guide rail frame; 5. Material distribution pipe; 6. Feed pipe; 7. Sealed bearing sleeve; 8. Concrete conveying hose; 9. Pouring pipe; 10. Screw telescopic motor; 11. Equipment frame; 12. Cement vibrator; 13. Slide rail; 14. Sliding groove; 15. Pulley; 16. Sliding block; 17. Discharge pipe; 18. Spiral mixer; 19. Conveyor motor; 20. Spiral conveyor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3This utility model discloses a high-efficiency concrete pouring device for precast beams and slabs, comprising a material bucket 1, a material placing device, and a guide rail frame 4. The top of the material bucket 1 is provided with a feeding hopper 3, and a spiral mixing device is installed inside the material bucket 1. The bottom of the material bucket 1 is provided with a discharge pipe 17. The material placing device includes a material placing pipe 5, a spiral conveying device, and a vibrating device. The spiral conveying device is installed inside the material placing pipe 5. The top of the material placing pipe 5 is provided with a feeding pipe 6, and the bottom of the material placing pipe 5 is provided with several pouring pipes 9. The vibrating device is installed at the bottom of the material placing pipe 5. A concrete conveying hose 8 connects the discharge pipe 17 and the feeding pipe 6. Both ends of the material placing pipe 5 are slidably mounted on the guide rail frame 4.

[0016] This high-efficiency concrete pouring device for precast beams and slabs achieves continuous, uniform, and high-quality concrete pouring through an integrated collaborative design of "mixing-conveying-pouring-vibration". The core logic is as follows: Concrete is stored in the hopper 1 and prevented from segregating by a spiral mixing device; the concrete is then pumped into the placing device via a conveying hose; the placing device moves along the guide rail frame 4, distributing the concrete evenly to multiple pouring pipes 9 through an internal spiral conveying device; simultaneously, the vibration device is activated to compact the freshly poured concrete; all components are sealed and precisely driven to ensure leak-free concrete delivery, comprehensive material coverage, and timely and effective vibration, ultimately achieving a dual improvement in the efficiency and quality of precast beam and slab pouring.

[0017] Material Bucket 1 Component Main structure and feeding / discharging design The top of the material bucket 1 is equipped with a feed hopper 3 for receiving concrete delivered by the concrete pump truck; the bottom of the material chamber of the material bucket 1 has a conical structure, which uses gravity to make the concrete gather towards the center, avoids residual accumulation, and ensures thorough discharge.

[0018] The bottom discharge pipe 17 is connected to the feed pipe 6 through the concrete conveying hose 8, realizing a flexible connection between the material bucket 1 and the material placing device, without affecting the movement of the material placing device along the track.

[0019] Spiral mixer It consists of a mixing motor 2 and a spiral mixing blade 18: the mixing motor 2 drives the spiral mixing blade 18 to rotate inside the material bucket 1, on the one hand continuously mixing the concrete to prevent it from segregating and solidifying due to standing; on the other hand, the spiral thrust pushes the concrete toward the discharge pipe 17 at the bottom of the cone to avoid blockage.

[0020] Sealed connection structure Sealed bearing sleeves 7 (made of wear-resistant rubber + metal skeleton) are fitted on the discharge pipe 17 and the feed pipe 6. The concrete conveying hose 8 is fixed to the bearing sleeves at both ends by flanges. The bearing sleeves can rotate flexibly with the movement of the placing device to ensure that the hose does not twist or leak when the placing pipe 5 slides along the track.

[0021] Fabric device Fabric feeding tube 5 and screw conveyor The concrete placing pipe 5 is a long steel pipe (the length is adapted to the width of the precast beam slab, usually 3-6m). The top feed pipe 6 receives concrete. The internal spiral conveying device is driven by the conveying motor 19 (power 2-4kW) to rotate the spiral conveying paddle 20 (pitch 200-300mm), which pushes the concrete evenly along the length of the placing pipe 5. The concrete is then vertically discharged into the precast beam slab mold through several pouring pipes 9 at the bottom, realizing multi-point synchronous material placement and avoiding local accumulation.

[0022] Vibrating device The bottom of the cloth pipe 5 is equipped with a screw telescopic motor 10 via a motor frame. The output end of the motor is connected to the equipment frame 11, and a cement vibrator 12 (power 1.1kW, frequency 200-300Hz) is fixed inside the frame. The cement vibrator 12 in this technical solution can be made using existing and mature equipment, such as the SYBF35 concrete vibrator or the ZN35 electric vibrator.

[0023] During operation, the screw telescopic motor 10 drives the equipment frame 11 to rise and fall, adjusting the depth of the cement vibrator 12 inserted into the concrete (adjusted according to the thickness of the beam and slab, usually 1 / 3-2 / 3 of the slab thickness); the vibrator compacts the concrete through high-frequency vibration, eliminating air bubbles and honeycomb, and the vibration action is synchronized with the material placement of the pouring pipe 9 (lag time ≤3s), ensuring that the newly poured concrete is compacted in a timely manner.

[0024] Guide rail frame 4 The guide rail frame 4 is a portal steel structure (the span is adapted to the length of the precast beam slab, usually 5-30m), with parallel slide rails 13 (load-bearing rails) and sliding grooves 14 (guide rails) on the top.

[0025] The two ends of the placing pipe 5 are slidably connected to the slide rail 13 via sliders 16 (bearing the weight of the placing device and the weight of the concrete). At the same time, pulleys 15 are installed at both ends and embedded in the sliding groove 14 to limit the lateral displacement of the placing pipe 5 (displacement ≤ 5mm).

[0026] Based on the pouring status at the pouring point, the operator pushes the placing pipe 5 to offset, achieving full coverage pouring along the length of the precast beam slab.

[0027] The electrical equipment in this technical solution can be connected to the mains power supply.

[0028] Detailed Workflow Phase 1: Equipment Initialization and Preparation Check the connections of each component: confirm that there is no residue at the conical bottom of the material bucket 1, and that the spiral mixing paddle 18 and spiral conveying paddle 20 rotate flexibly; that the concrete conveying hose 8 is tightly connected to the sealed bearing sleeve 7 through the flange without any looseness; that the slide rail 13 and sliding groove 14 of the guide rail frame 4 are clean, and that the slider 16 and pulley 15 are adequately lubricated.

[0029] Mold positioning: The precast beam and slab mold (such as box girder or T-beam mold) is fixed below the guide rail frame 4, and the mold contains a pre-set steel reinforcement skeleton and embedded parts.

[0030] Equipment adjustment: Adjust the speed of the spiral mixing paddle (40 rpm), the speed of the spiral conveying paddle (60 rpm), the insertion depth of the vibrating rod (300 mm), and the vibration frequency (250 Hz) according to the beam dimensions (length, width, thickness).

[0031] Phase 2: Concrete Feeding and Mixing Start the mixing motor 2 of the material bucket 1, and the spiral mixing blade 18 starts to rotate; inject concrete (slump 180-220mm, suitable for precast beams and slabs) into the material bucket 1 through the feeding hopper 3. During the feeding process, the spiral mixing blade 18 continuously stirs to prevent segregation.

[0032] Concrete gathers at the bottom of the cone and enters the concrete conveying hose 8 through the discharge pipe 17. At this time, the conveying hose maintains a flexible connection due to the sealing bearing sleeve 7, which does not affect the movement of the subsequent concrete placing device.

[0033] Phase 3: Moving the concrete placing device and pouring concrete Start the conveyor motor 19 of the cloth tube 5, and the screw conveyor 20 rotates; the operator pushes the cloth tube 5 along the slide rail 13 to move towards one end of the mold.

[0034] Concrete enters the distribution pipe 5 through the conveying hose and feed pipe 6. The screw conveyor 20 pushes the concrete along the length of the pipe and discharges it into the mold through the pouring pipe 9 evenly distributed at the bottom, forming a continuous and uniform material layer.

[0035] Phase 4: Simultaneous vibration compaction After concrete is discharged from the pouring pipe 9 for 3-5 seconds (ensuring that the local concrete accumulates to the vibration depth), start the screw telescopic motor 10 to drive the equipment frame 11 to descend, and insert the cement vibrator 12 into the concrete to the preset depth (e.g., 300mm).

[0036] The vibrator vibrates at a high frequency of 250Hz to compact the concrete (vibration time 5-10s / point); after vibration is completed, the screw telescopic motor 10 drives the vibrator to rise and detach from the concrete, and moves with the placing pipe 5 to the next area for repeated vibration.

[0037] Phase 5: Pouring and Equipment Reset When the placing pipe 5 moves to the end of the mold, turn off the conveyor motor 19 and the drive motor to stop placing and moving the concrete; continue to start the vibrating device to vibrate the end concrete for 5-10 seconds to ensure that there is no missed vibration.

[0038] Turn off the mixing motor 2 and clean the residual concrete in the material bucket 1; start the screw extension motor 10 to reset the vibrator to the highest position, and the material distribution pipe 5 returns to the starting end along the track.

[0039] Remove the concrete delivery hose 8 and clean all components (pouring pipe 9, vibrator, slide rail 13, etc.) to prepare for the next pouring.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency concrete pouring device for precast beams and slabs, characterized in that, The device includes a material bucket (1), a material distribution device, and a guide rail frame (4). The top of the material bucket (1) is provided with a feeding hopper (3). A spiral mixing device is installed inside the material bucket (1). The bottom of the material bucket (1) is provided with a discharge pipe (17). The material distribution device includes a material distribution pipe (5), a spiral conveying device, and a vibrating device. The spiral conveying device is installed inside the material distribution pipe (5). The top of the material distribution pipe (5) is provided with a feeding pipe (6). The bottom of the material distribution pipe (5) is provided with several pouring pipes (9). The vibrating device is installed at the bottom of the material distribution pipe (5). A concrete conveying hose (8) is connected between the discharge pipe (17) and the feeding pipe (6). The two ends of the material distribution pipe (5) are slidably installed on the guide rail frame (4).

2. The high-efficiency concrete pouring device for precast beams and slabs according to claim 1, characterized in that, Sealed bearing sleeves (7) are fitted on the discharge pipe (17) and the feed pipe (6). The two ends of the concrete conveying hose (8) are fixedly connected to the bearing sleeves on the discharge pipe (17) and the feed pipe (6) through flanges.

3. The high-efficiency concrete pouring device for precast beams and slabs according to claim 1, characterized in that, The spiral mixing device includes a mixing motor (2) and a spiral mixing blade (18). The mixing motor (2) is installed on the top of the material bucket (1). The spiral mixing blade (18) is installed at the output end of the mixing motor (2) and is located inside the material bucket (1). The spiral conveying device includes a conveying motor (19) and a spiral conveying blade (20). The conveying motor (19) is installed at one end of the material distribution pipe (5). The spiral conveying blade (20) is installed at the output end of the conveying motor (19) and is located inside the material distribution pipe (5).

4. The high-efficiency concrete pouring device for precast beams and slabs according to claim 1, characterized in that, The bottom of the material chamber of the material bucket (1) has a conical structure.

5. The high-efficiency concrete pouring device for precast beams and slabs according to claim 1, characterized in that, A motor frame is installed at the bottom of the fabric tube (5), and a screw telescopic motor (10) is fixedly installed on the motor frame. An equipment frame (11) is installed at the bottom of the screw telescopic motor (10), and a cement vibrator (12) is fixedly installed inside the equipment frame (11). The core of the cement vibrator (12) penetrates the bottom of the equipment frame (11).

6. The high-efficiency concrete pouring device for precast beams and slabs according to claim 1, characterized in that, The top of the guide rail frame (4) is provided with a slide rail (13) and a sliding groove (14). The two ends of the fabric tube (5) are slidably connected to the slide rail (13) through a slider (16). The two ends of the fabric tube (5) are equipped with pulleys (15), and the pulleys (15) are adapted to the sliding groove (14).

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