Concrete spreader for engineering construction

Abstract

The invention relates to the technical field of concrete spreader, and discloses a concrete spreader for engineering construction, which comprises a support frame and a bogie, the inner wall of the bogie is rotatably connected with the top of the support frame, the inner wall of the bogie is fixedly connected with a second conveying pipe, and the side wall of the bogie is provided with a discharge pipe. The first material conveying pipe is connected with a pipeline of a concrete pump truck, then the pump truck is started, concrete is pumped into the first material conveying pipe, the concrete can flow into the second material conveying pipe and the steering pipe till the concrete flows into the flow guide groove, the concrete is divided into two strands through the flow dividing assembly, aggregate in the two strands of concrete collides with each other, and the aggregate in the two strands of concrete collides with each other. Therefore, the flowing speed of the aggregate is slowed down, the follow-up mortar wraps the aggregate, the aggregate and the mortar of the concrete are evenly distributed, the situation of local aggregate concentration is reduced, and the situation that due to the fact that the aggregate is high in descending speed and prone to being accumulated at the bottom, the mortar floats on the upper layer, and the uniformity of concrete distribution is affected is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of concrete placing boom equipment technology, specifically a concrete placing boom for engineering construction. Background Technology

[0002] A concrete placing boom is the final piece of equipment for pumping concrete. Its function is to deliver pumped concrete through pipelines to the formwork of the component to be poured. The combined motion of the two rotating frames can cover all placing points within the placing radius. According to different pouring environments and individual requirements of concrete construction, various models such as internal climbing type, walking type, ship-mounted type, and manual type have been designed for users. The combined motion of the two rotating frames can cover all placing points within the placing radius.

[0003] In building construction projects, concrete placing booms are often used to place concrete. When the concrete is discharged through the placing boom, it usually falls from a high position. Since concrete contains aggregates such as crushed stone, which are heavy, the falling speed is fast, which may cause a lot of aggregate to accumulate at the bottom and mortar to float on the top, affecting the uniform distribution of concrete. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a concrete placing boom for engineering construction, including a support frame and a bogie, wherein the inner wall of the bogie is rotatably connected to the top of the support frame, and a material conveying pipe is fixedly connected to the inner wall of the bogie.

[0005] The main structure has a steering component rotatably mounted on its top, and a concrete placing component is installed on the inner wall of the steering component. The steering component is used to control the point where the concrete falls.

[0006] The collision mechanism is installed on the side wall of the concrete placing assembly to cause the aggregates in the concrete to collide with each other.

[0007] The deceleration mechanism, located on the inner wall of the impact mechanism, is used to reduce the impact force of the aggregate.

[0008] A discharge pipe is provided on the side wall of the bogie. A connecting frame is fixedly connected to the outer wall of the discharge pipe, and two diversion pipes are connected through the inner wall of the discharge pipe.

[0009] When concrete needs to be laid on the floor slab, it is connected to the pump truck through the steering component. The pump truck pumps the concrete into the delivery pipe 2 to pour the concrete into the floor slab. During the concrete flow, the collision mechanism causes the aggregate of the concrete to collide with each other, slowing down its falling speed. This ensures that the aggregate and mortar of the concrete are evenly distributed during the pouring process, reducing the local concentration of aggregate. Finally, the deceleration mechanism reduces the impact force of the aggregate, effectively preventing the aggregate from colliding. The impact force of the aggregate is too strong and may cause some aggregate to break.

[0010] Preferably, the main structure includes:

[0011] A steering assembly, with its inner wall rotatably mounted to the top of the support frame, is used to adjust the flow direction of the concrete.

[0012] The concrete placing assembly is rotatably mounted on the outer wall of the concrete placing assembly and the inner wall of the bogie, and is used for pumping concrete.

[0013] In this system, by connecting the steering assembly to the pump truck, concrete is allowed to flow into the impact mechanism via the placing assembly when concrete needs to be poured.

[0014] Preferably, the collision mechanism includes:

[0015] The conveying assembly is fixedly installed on the side wall of the concrete placing assembly and is used to discharge concrete.

[0016] The diversion component is fixedly installed on the inner wall of the discharge pipe to divert the concrete.

[0017] The concrete flowing inside the concrete placement component enters the conveying component, and then enters the diversion component, where it is divided into two streams. This causes the aggregate in the concrete to collide, slowing down its descent speed and ensuring that the aggregate and mortar are evenly distributed. This reduces the occurrence of localized aggregate concentration and effectively prevents the aggregate from accumulating at the bottom due to its rapid descent speed. Finally, the concrete is discharged to the top of the floor slab.

[0018] Preferably, the speed reduction mechanism includes:

[0019] A buffer assembly is slidably disposed on the inner wall of the diversion assembly to reduce the impact force of concrete.

[0020] A blocking component is slidably installed on the inner wall of the discharge pipe to increase the flow resistance of concrete aggregate.

[0021] When concrete comes into contact with the diversion component, the impact force of the concrete is reduced by the blocking component, which effectively prevents the concrete from flowing out of the diversion component. When the aggregates collide, the impact force of the aggregates is strong, which may cause some aggregates to break and make it difficult to form an effective skeleton. Finally, the aggregates of the concrete will come into contact with the blocking component, increasing its flow resistance.

[0022] Preferably, the steering assembly includes a first conveying pipe fixedly connected to the inner wall of the support frame, a second conveying pipe whose inner wall is rotatably connected to the outer wall of the first conveying pipe, a second conveying pipe whose outer wall is rotatably connected to the inner wall of the support frame, and a rubber sealing ring whose outer wall is fixedly connected to the first conveying pipe.

[0023] Preferably, the fabric assembly includes a steering tube disposed on the outer wall of the support frame, the outer wall of the steering tube being rotatably connected to the inner wall of the bogie, the inner wall of the second conveying pipe being rotatably connected to the outer wall of the steering tube, and a second rubber sealing ring being fixedly connected to the outer wall of the steering tube.

[0024] The equipment is moved to the top of the floor slab to be poured. After it is in place, the operator connects the first delivery pipe to the pipeline of the concrete pump truck. Then, the pump truck is started, and concrete is pumped into the first delivery pipe. The operator can change the outflow position of the concrete by rotating the bogie and the steering pipe to cover all the placement points within the placement radius.

[0025] Preferably, the conveying assembly includes a chute fixedly connected to the outer wall of the discharge pipe, the inner wall of the connecting frame being fixedly connected to the outer wall of the deflecting pipe, and a guide groove being provided on the inner wall of the connecting frame.

[0026] The concrete in conveying pipe one will flow into conveying pipe two and turning pipe until it flows into the guide channel, and then into the discharge pipe.

[0027] Preferably, the diversion assembly includes a V-shaped diversion block slidably connected to the inner wall of the discharge pipe, a spring reset rod fixedly connected to the side wall of the V-shaped diversion block, a connecting cylinder fixedly connected to the inner wall of the discharge pipe, and the inner wall of the connecting cylinder slidably connected to the outer wall of the spring reset rod.

[0028] The concrete then comes into contact with the V-shaped diversion block, which blocks the concrete flow, causing it to flow into two diversion pipes. The concrete then flows within these pipes. As the concrete flows out of the two diversion pipes and back into the discharge pipe, the aggregates in the two streams collide with each other, consuming their kinetic energy and slowing their flow. The subsequent mortar then comes into contact with the aggregates, coating them with its own energy. The concrete then flows into the chute, where it is poured onto the top of the floor slab. By slowing down the falling speed of the aggregates and ensuring that the mortar coats them, the aggregates and mortar in the concrete are evenly distributed during pouring, reducing localized aggregate concentrations and effectively preventing the rapid descent of aggregates from accumulating at the bottom, which would cause the mortar to float on top and affect the uniformity of the concrete distribution.

[0029] Preferably, the buffer assembly includes a piston block 1 that is slidably connected to the inner wall of the connecting cylinder, the side wall of the piston block 1 being fixedly connected to the side wall of the spring return rod, and a piston block 2 being fixedly connected to the side of the piston block 1 away from the spring return rod.

[0030] Hydraulic oil is provided on the inner wall of the connecting cylinder, and a special groove is opened on the inner wall of the connecting cylinder. The outer wall of the piston block 2 is slidably connected to the inner wall of the connecting cylinder.

[0031] Because the concrete is transported by the pump truck and has a relatively fast flow rate, some of the concrete generates a strong impact force when it comes into contact with the V-shaped diversion block. When the concrete has a strong impact on the V-shaped diversion block, it will push the V-shaped diversion block to move, squeezing the spring return rod and causing it to accumulate rebound force. The spring return rod will push piston block one and piston block two to move. Piston block one will then squeeze the hydraulic oil in the connecting cylinder and flow through the irregular groove to the top of piston block two. Because the irregular groove has multiple asymmetrical branch flow paths, it will force the hydraulic oil to be diverted, increasing the flow resistance of the hydraulic oil, thereby slowing down the movement speed of piston block one and the V-shaped diversion block, slowing down the flow speed of the concrete, reducing its impact force, and effectively preventing the concrete from flowing out of the diversion pipe. When the aggregates collide, the impact force of the aggregates is strong, which may cause some aggregates to break and make it difficult to form an effective skeleton.

[0032] Preferably, the blocking component includes a concave-convex ring fixedly connected to the inner wall of the discharge pipe, and the inner wall of the concave-convex ring is provided with a plurality of flow channel grooves.

[0033] As the aggregates continue to flow in the discharge pipe after mutual impact, some aggregates will come into contact with the concave and convex surfaces of the concave and convex rings. The concave and convex surfaces will increase the flow resistance of the aggregates, while some mortar will flow through the flow channel, allowing the mortar to flow smoothly. This slows down the flow speed of the aggregates near the concave and convex rings, allowing the aggregates located in the center of the discharge pipe to flow smoothly. This creates a velocity difference in the aggregates, causing the aggregates in the center to come into contact with the floor slab first. Meanwhile, some mortar will flow smoothly through the flow channel, and the flow speed of some mortar will be faster than that of the aggregates near the concave and convex rings. This allows some mortar to be poured on top of the aggregates flowing in the center of the discharge pipe, forming a layer of aggregate-mortar-aggregate. This allows the aggregates to be arranged in an alternating manner, and the mortar to fully fill the gaps in the aggregates, making the aggregate distribution more uniform.

[0034] The present invention has the following beneficial effects:

[0035] (1) When using this invention, the operator connects the first conveying pipe to the pipeline of the concrete pump truck. Then, the pump truck is started and the concrete is pumped into the first conveying pipe. After that, the concrete will flow into the second conveying pipe and the diverting pipe until the concrete flows into the guide channel. Through the diversion component, the concrete is divided into two streams, so that the aggregates in the two streams collide with each other, consume the kinetic energy of the aggregates, and thus slow down the flow speed of the aggregates. The subsequent mortar will wrap the aggregates, so that the aggregates and mortar of the concrete are evenly distributed during the concrete pouring, reducing the local aggregate concentration, and effectively preventing the aggregates from falling too fast and accumulating at the bottom, causing the mortar to float on the upper layer and affecting the uniformity of the concrete distribution.

[0036] (2) In this invention, because the concrete is transported by the pump truck, it has a relatively fast flow rate. When the concrete comes into contact with the V-shaped diversion block, some of the concrete generates a strong impact force. When the concrete has a strong impact on the V-shaped diversion block, it will push the V-shaped diversion block to move, squeeze the spring return rod, and make it accumulate rebound force. The spring return rod will push piston block one and piston block two to move. Through the buffer component, the moving speed of piston block one and V-shaped diversion block is slowed down, the flow rate of concrete is slowed down, and its impact force is reduced, effectively preventing concrete from flowing out of the diversion pipe. When the aggregates collide, the impact force of the aggregates is strong, which may cause some aggregates to break and make it difficult to form an effective skeleton.

[0037] (3) When the aggregates after mutual collision continue to flow in the discharge pipe, some aggregates will contact the concave and convex surfaces of the concave and convex rings. The concave and convex surfaces will increase the flow resistance of the aggregates, while some mortar will flow through the flow channel, allowing the mortar to flow smoothly. This slows down the flow speed of the aggregates near the concave and convex rings, allowing the aggregates located in the center of the discharge pipe to flow smoothly. This creates a speed difference in the aggregates, causing the aggregates located in the center to contact the floor slab first. Meanwhile, some mortar will flow smoothly through the flow channel, and the flow speed of some mortar will be faster than that of the aggregates near the concave and convex rings. This allows some mortar to be poured on top of the aggregates flowing in the center of the discharge pipe, forming a layer of aggregate-mortar-aggregate. This allows the aggregates to be arranged in an alternating manner, allowing the mortar to fully fill the gaps in the aggregates, making the aggregate distribution more uniform.

[0038] (4) In this invention, the concrete flows through the guide channel, which guides the aggregate in the concrete to gather. This causes the aggregate in the concrete to concentrate and contact the conical surface of the V-shaped diversion block. The symmetry of the conical surface guides the aggregate to flow along both sides of the conical surface, and the aggregate is evenly distributed. The V-shaped diversion block redistributes the aggregate, making the aggregate distribution in the two streams of concrete more uniform. This effectively prevents the aggregate from concentrating in the diversion pipe on one side during concrete transportation, causing uneven aggregate distribution and making it difficult for the aggregate to collide with each other, thus affecting the deceleration of the aggregate. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0042] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0043] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0044] Figure 5 This is a schematic diagram of the left sectional view of the discharge pipe of the present invention;

[0045] Figure 6 This is a schematic diagram of the left cross-section of the diversion tube of the present invention;

[0046] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle;

[0047] Figure 8 This is a cross-sectional schematic diagram of the discharge pipe of the present invention;

[0048] Figure 9 This is a schematic diagram of the explosion assembly of the main structure of the present invention.

[0049] The attached diagram lists the components represented by each number as follows:

[0050] In the diagram: 1. Main structure; 11. Steering assembly; 12. Fabric feeding assembly; 111. Support frame; 112. Bogie; 113. Conveyor pipe one; 121. Conveyor pipe two; 122. Steering pipe; 2. Collision mechanism; 21. Conveying assembly; 22. Diverting assembly; 211. Connecting frame; 212. Guide channel; 213. Discharge pipe; 214. Sluice; 221. Diverting pipe; 222. V-shaped diverting block; 223. Spring return rod; 224. Connecting cylinder; 3. Reduction mechanism; 31. Buffer assembly; 32. Blocking assembly; 311. Piston block one; 312. Piston block two; 313. Irregular groove; 321. Concave-convex ring; 322. Flow channel groove. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Example 1, please refer to Figures 1-5 The present invention is a concrete placing boom for engineering construction, including a support frame 111 and a bogie 112. The inner wall of the bogie 112 is rotatably connected to the top of the support frame 111, and a material conveying pipe 121 is fixedly connected to the inner wall of the bogie 112.

[0053] The main body 1 has a steering component 11 rotatably mounted on its top. A material placement component 12 is installed on the inner wall of the steering component 11. The steering component 11 is used to control the drop point of the concrete.

[0054] Collision mechanism 2 is installed on the side wall of the placing assembly 12 to cause the aggregates in the concrete to collide with each other.

[0055] The deceleration mechanism 3 is located on the inner wall of the collision mechanism 2 and is used to reduce the impact force of the aggregate.

[0056] A discharge pipe 213 is provided on the side wall of the bogie 112. A connecting frame 211 is fixedly connected to the outer wall of the discharge pipe 213, and two diversion pipes 221 are connected through the inner wall of the discharge pipe 213.

[0057] When concrete needs to be laid on the floor slab, it is connected to the pump truck through the steering component 11. The pump truck pumps the concrete into the delivery pipe 121 to pour the concrete for the floor slab. During the concrete flow, the aggregate of the concrete collides with each other through the collision mechanism 2, which slows down its falling speed. This ensures that the aggregate and mortar of the concrete are evenly distributed during the concrete pouring, reducing the local concentration of aggregate. Finally, the deceleration mechanism 3 reduces the impact force of the aggregate, effectively preventing the aggregate from colliding. The impact force of the aggregate is too strong and may cause some aggregate to break.

[0058] Main body 1 includes:

[0059] Steering assembly 11, the inner wall of steering assembly 11 is rotatably mounted to the top of support frame 111, for adjusting the flow direction of concrete;

[0060] The concrete placing assembly 12 is rotatably mounted on the outer wall of the concrete placing assembly 12 and the inner wall of the bogie 112, and is used for pumping concrete.

[0061] In this system, by connecting the steering assembly 11 to the pump truck, when concrete needs to be poured, the concrete is allowed to flow into the collision mechanism 2 via the placing assembly 12.

[0062] Collision mechanism 2 includes:

[0063] Conveying assembly 21 is fixedly installed on the side wall of the concrete placing assembly 12 and is used to discharge concrete.

[0064] Diverting component 22 is fixedly installed on the inner wall of discharge pipe 213 to divert concrete.

[0065] The concrete flowing in the placing component 12 will enter the conveying component 21, and then the concrete will enter the diversion component 22, which will divide the concrete into two streams, causing the aggregate in the concrete to collide and slow down its falling speed. This will make the aggregate and mortar of the concrete evenly distributed, reduce the local concentration of aggregate, and effectively prevent the aggregate from accumulating at the bottom due to the fast falling speed. The concrete will then be discharged to the top of the floor slab.

[0066] The speed reduction mechanism 3 includes:

[0067] The buffer assembly 31 is slidably disposed on the inner wall of the diversion assembly 22 to reduce the impact force of concrete.

[0068] The blocking component 32 is slidably disposed on the inner wall of the discharge pipe 213 to increase the flow resistance of the concrete aggregate.

[0069] When concrete comes into contact with the diversion component 22, the impact force of the concrete is reduced by the blocking component 32, which effectively prevents the concrete from flowing out of the diversion component 22. When the aggregates collide, the impact force of the aggregates is strong, which may cause some aggregates to break and make it difficult to form an effective skeleton. Finally, the aggregates of the concrete will come into contact with the blocking component 32, increasing its flow resistance.

[0070] Example 2, please refer to Figures 1-9 The present invention is a concrete placing boom for engineering construction. Based on Example 1, the steering assembly 11 includes a first conveying pipe 113 fixedly connected to the inner wall of the support frame 111, a second conveying pipe 121 whose inner wall is rotatably connected to the outer wall of the first conveying pipe 113, and whose outer wall is rotatably connected to the inner wall of the support frame 111. A rubber sealing ring is fixedly connected to the outer wall of the first conveying pipe 113.

[0071] The fabric assembly 12 includes a turning pipe 122 disposed on the outer wall of the support frame 111. The outer wall of the turning pipe 122 is rotatably connected to the inner wall of the bogie 112. The inner wall of the material conveying pipe 121 is rotatably connected to the outer wall of the turning pipe 122. A rubber sealing ring 2 is fixedly connected to the outer wall of the turning pipe 122.

[0072] The equipment is moved to the top of the floor slab to be poured. After it is in place, the operator connects the material delivery pipe 113 to the pipeline of the concrete pump truck. Then, the pump truck is started, and concrete is pumped into the material delivery pipe 113. The operator can change the outflow position of the concrete by rotating the bogie 112 and the steering pipe 122 to cover all the material delivery points within the radius of the material delivery.

[0073] The conveying assembly 21 includes a chute 214 fixedly connected to the outer wall of the discharge pipe 213, and the inner wall of the connecting frame 211 is fixedly connected to the outer wall of the turning pipe 122. A guide groove 212 is provided on the inner wall of the connecting frame 211.

[0074] The concrete in conveying pipe 113 will flow into conveying pipe 221 and turning pipe 122 until it flows into the guide channel 212, and then into the discharge pipe 213.

[0075] The diversion assembly 22 includes a V-shaped diversion block 222 slidably connected to the inner wall of the discharge pipe 213. A spring reset rod 223 is fixedly connected to the side wall of the V-shaped diversion block 222. A connecting cylinder 224 is fixedly connected to the inner wall of the discharge pipe 213. The inner wall of the connecting cylinder 224 is slidably connected to the outer wall of the spring reset rod 223.

[0076] The concrete then comes into contact with the V-shaped diversion block 222, which blocks the concrete flow, causing it to flow into the two diversion pipes 221. The concrete then flows within the two diversion pipes 221. When the concrete flows out of the two diversion pipes 221 and flows back into the discharge pipe 213, the aggregates in the two streams of concrete collide with each other, consuming the kinetic energy of the aggregates and thus slowing down their flow rate. The subsequent mortar then comes into contact with the aggregates, allowing the mortar to coat the aggregates. Afterward, the concrete flows into the chute 214, where it is poured onto the top of the floor slab. By slowing down the falling speed of the aggregates and allowing the mortar to coat them, the aggregates and mortar in the concrete are evenly distributed during pouring, reducing localized aggregate concentration and effectively preventing the aggregates from accumulating at the bottom due to their rapid descent, which would cause the mortar to float on the upper layer and affect the uniformity of the concrete distribution.

[0077] The buffer assembly 31 includes a piston block 311 that is slidably connected to the inner wall of the connecting cylinder 224. The side wall of the piston block 311 is fixedly connected to the side wall of the spring return rod 223. A piston block 312 is fixedly connected to the side of the piston block 311 away from the spring return rod 223.

[0078] Hydraulic oil is provided on the inner wall of the connecting cylinder 224, and a special groove 313 is opened on the inner wall of the connecting cylinder 224. The outer wall of the piston block 312 is slidably connected to the inner wall of the connecting cylinder 224.

[0079] Because the concrete is transported by the pump truck and has a relatively fast flow rate, when the concrete comes into contact with the V-shaped diversion block 222, some of the concrete generates a strong impact force. When the concrete has a strong impact on the V-shaped diversion block 222, it will push the V-shaped diversion block 222 to move, squeezing the spring return rod 223, causing it to accumulate rebound force. The spring return rod 223 will push the piston block 1 311 and piston block 2 312 to move. The piston block 1 311 will then squeeze the hydraulic oil in the connecting cylinder 224 and flow through the irregular groove 313 to the top of the piston block 2 312. Since the irregular groove 313 has multiple asymmetrical branch flow paths, it will force the hydraulic oil to be diverted, increasing the flow resistance of the hydraulic oil, thereby slowing down the movement speed of the piston block 1 311 and the V-shaped diversion block 222, slowing down the flow speed of the concrete, reducing its impact force, and effectively preventing the concrete from flowing out of the diversion pipe 221. When the aggregates collide, the impact force of the aggregates is strong, which may cause some aggregates to break and make it difficult to form an effective skeleton.

[0080] The blocking component 32 includes a concave-convex ring 321 fixedly connected to the inner wall of the discharge pipe 213, and a plurality of flow channel grooves 322 are provided on the inner wall of the concave-convex ring 321.

[0081] As the aggregates continue to flow within the discharge pipe 213 after mutual impact, some aggregates will contact the concave and convex surfaces of the concave and convex rings 321. The concave and convex surfaces will increase the flow resistance of the aggregates, while some mortar will flow through the flow channel 322, allowing the mortar to flow smoothly. This slows down the flow speed of the aggregates near the concave and convex rings 321, allowing the aggregates located at the center of the discharge pipe 213 to flow smoothly. This creates a velocity difference in the aggregates, causing the aggregates located at the center to contact the floor slab first. Meanwhile, some mortar will flow smoothly through the flow channel 322, and the flow speed of some mortar will be faster than that of the aggregates near the concave and convex rings 321. This allows some mortar to be poured on top of the aggregates flowing in the center of the discharge pipe 213, forming a layer of aggregate-mortar-aggregate. This allows the aggregates to be arranged in an alternating manner, and the mortar to fully fill the gaps in the aggregates, making the aggregate distribution more uniform.

[0082] The number of the above components is not limited. Those skilled in the art can set it freely according to actual needs, as long as the above components are installed at the corresponding component connection positions.

[0083] A specific application of this embodiment is as follows: When using this invention, the equipment is moved to the top of the floor slab to be poured. After being moved into place, the operator connects the first delivery pipe 113 to the pipeline of the concrete pump truck. Then, the pump truck is started, and concrete is pumped into the first delivery pipe 113. Afterward, the concrete flows into the second delivery pipe 121 and the diversion pipe 122 until it flows into the guide channel 212. Then, it flows into the discharge pipe 213. The concrete then comes into contact with the V-shaped diversion block 222, which blocks the flow of concrete, causing the concrete to flow into the two diversion pipes 221. The concrete then flows in the two diversion pipes 221. When the concrete flows from the two diversion pipes... When the concrete flows out of the flow pipe 221 and flows back into the discharge pipe 213, the aggregates in the two streams of concrete will collide with each other, consuming the kinetic energy of the aggregates and thus slowing down the flow speed of the aggregates. The subsequent mortar will then come into contact with the aggregates, allowing the mortar to coat the aggregates. After that, the concrete will flow into the chute 214 and be poured onto the top of the floor slab through the chute 214. By slowing down the falling speed of the aggregates and allowing the mortar to coat the aggregates, the aggregates and mortar in the concrete are evenly distributed during the pouring process, reducing the local concentration of aggregates and effectively preventing the aggregates from accumulating at the bottom due to their rapid falling speed, which would cause the mortar to float on the upper layer and affect the uniformity of the concrete distribution.

[0084] The operator can change the concrete outflow position by rotating the bogie 112 and the steering pipe 122 to cover all placement points within the placement radius.

[0085] Secondly, because the concrete is transported by the pump truck and has a relatively fast flow rate, when the concrete comes into contact with the V-shaped diversion block 222, some of the concrete generates a strong impact force. When the concrete has a strong impact on the V-shaped diversion block 222, it will push the V-shaped diversion block 222 to move, squeezing the spring return rod 223, so that it accumulates rebound force. The spring return rod 223 will push the piston block 1 311 and piston block 2 312 to move. The piston block 1 311 will squeeze the hydraulic oil in the connecting cylinder 224 and flow through the irregular groove 313 to the top of the piston block 2 312. Since the irregular groove 313 has multiple asymmetrical branch flow paths, it will force the hydraulic oil to be diverted, increase the flow resistance of the hydraulic oil, thereby slowing down the movement speed of the piston block 1 311 and the V-shaped diversion block 222, slowing down the flow speed of the concrete, reducing its impact force, and effectively preventing the concrete from flowing out of the diversion pipe 221. When the aggregates collide, the impact force of the aggregates is strong, which may cause some aggregates to break and make it difficult to form an effective skeleton.

[0086] Secondly, as the aggregates continue to flow in the discharge pipe 213 after mutual collision, some aggregates will contact the concave and convex surfaces of the concave and convex rings 321. The concave and convex surfaces will increase the flow resistance of the aggregates, while some mortar will flow through the flow channel 322, allowing the mortar to flow smoothly. This slows down the flow speed of the aggregates near the concave and convex rings 321, allowing the aggregates located in the center of the discharge pipe 213 to flow smoothly. This creates a speed difference in the aggregates, causing the aggregates in the center to contact the floor slab first, while some mortar will flow smoothly through the flow channel 322. The flow speed of some mortar will be faster than that of the aggregates near the concave and convex rings 321, allowing some mortar to be poured on top of the aggregates flowing in the center of the discharge pipe 213, forming a layer of aggregate-mortar-aggregate. This allows the aggregates to be arranged in an alternating manner, allowing the mortar to fully fill the gaps in the aggregates, making the aggregate distribution more uniform.

[0087] Secondly, as the concrete flows through the guide channel 212, the aggregate in the concrete is guided to gather. This causes the aggregate to concentrate and contact the conical surface of the V-shaped diversion block 222. The symmetry of the conical surface guides the aggregate to flow along both sides of the conical surface, distributing the aggregate evenly. The V-shaped diversion block 222 redistributes the aggregate, making the aggregate distribution in the two streams of concrete more uniform. This effectively prevents the aggregate from concentrating in the diversion pipe 221 on one side during concrete delivery, which would cause uneven aggregate distribution, make it difficult for the aggregate to collide with each other, and affect the deceleration of the aggregate.

[0088] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A concrete placing boom for engineering construction, comprising a support frame (111) and a bogie (112), wherein the inner wall of the bogie (112) is rotatably connected to the top of the support frame (111), and a conveying pipe (121) is fixedly connected to the inner wall of the bogie (112), characterized in that, Also includes: The main structure (1) has a steering assembly (11) rotatably mounted on its top. A material placement assembly (12) is installed on the inner wall of the steering assembly (11). The steering assembly (11) is used to control the point where the concrete falls. Collision mechanism (2), which is installed on the side wall of the fabric assembly (12) for causing the aggregates in the concrete to collide with each other; The deceleration mechanism (3) is located on the inner wall of the collision mechanism (2) and is used to reduce the impact force of the aggregate. The bogie (112) is provided with a discharge pipe (213) on its side wall. A connecting frame (211) is fixedly connected to the outer wall of the discharge pipe (213). Two diversion pipes (221) are connected through the inner wall of the discharge pipe (213). When it is necessary to lay concrete on the floor slab, the concrete is connected to the pump truck through the steering component (11) and pumped into the conveying pipe (121) by the pump truck to pour the concrete into the floor slab. During the concrete flow, the concrete aggregates collide with each other through the collision mechanism (2) to slow down their falling speed. Finally, the impact force of the aggregates is reduced through the deceleration mechanism (3).

2. The concrete placing boom for engineering construction according to claim 1, characterized in that: The main body (1) includes: Steering assembly (11), the inner wall of which is rotatably disposed with the top of the support frame (111), is used to adjust the flow direction of concrete; A concrete placement assembly (12) is rotatably mounted on the outer wall of the concrete placement assembly (12) and the inner wall of the bogie (112) for pumping concrete. In this system, by connecting the steering assembly (11) to the pump truck, when concrete needs to be poured, the concrete is allowed to flow into the collision mechanism (2) through the placing assembly (12).

3. A concrete placing boom for engineering construction according to claim 2, characterized in that: The collision mechanism (2) includes: A conveying assembly (21) is fixedly installed on the side wall of the material distribution assembly (12) for discharging concrete; Diverting component (22), which is fixedly installed on the inner wall of the discharge pipe (213) for diverting concrete; The concrete flowing in the fabric assembly (12) will enter the conveying assembly (21), and then the concrete will enter the diversion assembly (22) to split the concrete into two streams, causing the aggregate in the concrete to collide and slow down its falling speed, and then the concrete will be discharged to the top of the floor slab.

4. A concrete placing boom for engineering construction according to claim 3, characterized in that: The deceleration mechanism (3) includes: A buffer assembly (31) is slidably disposed on the inner wall of the diversion assembly (22) to reduce the impact force of concrete. A blocking component (32) is slidably disposed on the inner wall of the discharge pipe (213) to increase the flow resistance of concrete aggregate; When the concrete comes into contact with the diversion component (22), the impact force of the concrete is reduced by the blocking component (32). Finally, the aggregate of the concrete comes into contact with the blocking component (32), increasing its flow resistance.

5. A concrete placing boom for engineering construction according to claim 4, characterized in that: The steering assembly (11) includes a first conveying pipe (113) fixedly connected to the inner wall of the support frame (111), the inner wall of the second conveying pipe (121) being rotatably connected to the outer wall of the first conveying pipe (113), and the outer wall of the second conveying pipe (121) being rotatably connected to the inner wall of the support frame (111).

6. A concrete placing boom for engineering construction according to claim 5, characterized in that: The fabric assembly (12) includes a turning tube (122) disposed on the outer wall of the support frame (111), the outer wall of the turning tube (122) being rotatably connected to the inner wall of the bogie (112), and the inner wall of the second material conveying tube (121) being rotatably connected to the outer wall of the turning tube (122). In this process, by connecting the first conveying pipe (113) to the pipeline of the pump truck, the concrete is pumped into the first conveying pipe (113) by starting the pump truck, and then into the second conveying pipe (121) and the turning pipe (122) through the first conveying pipe (113). During the conveying process, the discharge direction of the concrete is changed by rotating the bogie (112) and the turning pipe (122).

7. A concrete placing boom for engineering construction according to claim 6, characterized in that: The conveying assembly (21) includes a chute (214) fixedly connected to the outer wall of the discharge pipe (213), the inner wall of the connecting frame (211) is fixedly connected to the outer wall of the turning pipe (122), and a guide groove (212) is provided on the inner wall of the connecting frame (211). The concrete entering the diversion pipe (122) will enter the guide channel (212), and after passing through the diversion component (22), the concrete will enter the chute (214) and be discharged through the chute (214).

8. A concrete placing boom for engineering construction according to claim 7, characterized in that: The diversion assembly (22) includes a V-shaped diversion block (222) slidably connected to the inner wall of the discharge pipe (213), a spring return rod (223) fixedly connected to the side wall of the V-shaped diversion block (222), a connecting cylinder (224) fixedly connected to the inner wall of the discharge pipe (213), and the inner wall of the connecting cylinder (224) slidably connected to the outer wall of the spring return rod (223). The concrete entering the discharge pipe (213) will come into contact with the V-shaped diverter (222). The V-shaped diverter (222) will block the concrete, causing it to enter the two diverter pipes (221), which will split the concrete into two streams. Finally, the two streams of concrete will collide, reducing the falling speed of the aggregate in the concrete.

9. A concrete placing boom for engineering construction according to claim 8, characterized in that: The buffer assembly (31) includes a piston block one (311) that is slidably connected to the inner wall of the connecting cylinder (224). The side wall of the piston block one (311) is fixedly connected to the side wall of the spring return rod (223). A piston block two (312) is fixedly connected to the side of the piston block one (311) away from the spring return rod (223). Hydraulic oil is provided on the inner wall of the connecting cylinder (224), and a shaped groove (313) is opened on the inner wall of the connecting cylinder (224). The outer wall of the piston block (312) is slidably connected to the inner wall of the connecting cylinder (224). When concrete impacts the V-shaped diverter block (222), it will push the V-shaped diverter block (222) to move, causing the piston block (311) to squeeze the hydraulic oil and flow through the irregular groove (313). Since the irregular groove (313) has a complex flow channel, it will reduce the flow speed of the hydraulic oil, thereby reducing the impact force of the concrete.

10. A concrete placing boom for engineering construction according to claim 9, characterized in that: The blocking assembly (32) includes a concave-convex ring (321) fixedly connected to the inner wall of the discharge pipe (213), and the inner wall of the concave-convex ring (321) is provided with a plurality of flow channel grooves (322); When the aggregates continue to flow in the discharge pipe (213) after mutual collision, some aggregates will come into contact with the concave and convex surfaces of the concave and convex ring (321). The concave and convex surfaces will increase the flow resistance of the aggregates, while some mortar will flow through the flow channel (322) to make the mortar flow smoothly.

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