Recycled mixed concrete beam slab and construction method thereof

Abstract

The invention belongs to the technical field of concrete beams and slabs, and particularly relates to a recycled mixed concrete beam and slab and a construction method thereof. The vibrating mechanism is arranged on the distributing machine and is close to the discharging pipe; the vibrating mechanism comprises a fixing ring fixedly connected with the discharging pipe in a sleeving mode, a connecting plate is fixedly installed outside the fixing ring, and an electric push rod is fixedly installed at the top of the connecting plate. By means of the designed structure, when the discharging pipe outputs concrete to be poured into a beam plate, the vibrating rod can follow up and cooperate in real time, the output concrete is quickly and efficiently vibrated, and then the situation that air is wrapped to form bubbles due to the fact that the concrete is accumulated at a certain point in a formwork in a concentrated mode is avoided. And meanwhile, the conditions of aggregate sinking, slurry floating and segregation caused by over-thick accumulation during material distribution can be avoided. And the vibrating rod and the discharging pipe are integrally designed, so that workers do not need to approach, and potential safety hazards are reduced.

Description

Technical Field

[0001] This invention belongs to the field of concrete beam and slab technology, specifically a recycled hybrid concrete beam and slab and its construction method. Background Technology

[0002] Recycled concrete beams and slabs are load-bearing beam and slab components made by using recycled aggregates to partially or completely replace natural aggregates in concrete. They are commonly found in building floor slabs, bridge decks, and other structures, serving both load-bearing functions and environmental benefits. The concrete portion of recycled concrete beams and slabs uses recycled aggregates, which are processed from waste concrete (such as demolished old buildings and discarded components) through crushing, screening, and washing processes, replacing some or all of the natural sand and gravel.

[0003] When pouring concrete beams and slabs, a placing boom is required. When the placing boom discharges concrete, it tends to concentrate at a single point within the formwork, easily trapping air and forming bubbles. Simultaneously, recycled aggregates, with their surface covered in old mortar, have different water absorption and density compared to natural aggregates. If the aggregate pile is too thick during placement, the aggregates tend to sink while the mortar rises, leading to segregation. In this situation, workers need to stand at the placing boom's hose with a vibrator to compact the concrete. However, the continuous discharge from the hose poses a safety hazard to workers positioned near it.

[0004] Therefore, the present invention provides a recycled hybrid concrete beam-slab and its construction method. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a recycled mixed concrete beam and slab and its construction method, including a concrete placing machine and a discharge pipe; it also includes a vibration mechanism installed on the concrete placing machine and near the discharge pipe; the vibration mechanism includes a fixing ring fixedly sleeved with the discharge pipe, a connecting plate fixedly installed on the outside of the fixing ring, an electric push rod fixedly installed on the top of the connecting plate, the output end of the electric push rod passing through the connecting plate, and a connecting plate fixedly installed on the output end of the electric push rod, and a vibrating rod fixedly installed on the bottom of the connecting plate.

[0007] Furthermore, reinforcing ribs are fixedly installed on both the top and the bottom of the connecting plate, and the end of the reinforcing rib away from the connecting plate is fixedly connected to the discharge pipe.

[0008] Furthermore, a multi-stage telescopic tube is fixedly installed between the connecting plate and the connecting disc. The multi-stage telescopic tube covers the output end of the electric push rod and is composed of several hollow round tubes that are slidably connected.

[0009] Furthermore, the connecting plate is provided with a cleaning mechanism, which includes a fixed plate that is fixedly connected to the connecting plate and is in the shape of an "L". The top of the fixed plate is provided with a through groove, which is located below the vibrating rod. A scraper is fixedly installed at the bottom of the fixed plate, and a brush is fixedly installed in the through groove of the fixed plate.

[0010] Furthermore, an air blowing mechanism is provided inside the multi-stage telescopic tube. The air blowing mechanism includes an air inlet pipe connected to the inside of the multi-stage telescopic tube and equipped with a one-way valve. An air outlet pipe connected to the inside and equipped with a one-way valve is fixedly installed on one side of the multi-stage telescopic tube. Several hollow circular tubes of the multi-stage telescopic tube are sealed and sliding, and the several circular tubes are connected to each other through through holes. Several connecting rods connected to the air outlet pipe are provided on the fixed plate.

[0011] Furthermore, several connecting rods are fixedly installed on the fixing plate, and a hollow collar is fixedly installed on the top of the connecting rod. Several air vents communicating with the inside are opened on the surface of the collar, and the end of the connecting pipe away from the multi-stage telescopic pipe is connected to the inside of the collar.

[0012] Furthermore, the bottom of the connecting plate is provided with an agitation mechanism, which includes several hollow elastic blocks fixedly installed at the bottom of the connecting plate; the interior of the fixed plate is provided with several sliding grooves that communicate with the through grooves, and a sliding plate is slidably connected inside the sliding grooves. An agitation rod is fixedly installed on one side of the sliding plate, and the sliding grooves and elastic blocks are connected by an air guide pipe.

[0013] Furthermore, several elastic ropes are fixedly installed between the slide plate and the chute.

[0014] Furthermore, several arc-shaped extrusion plates are fixedly installed on the top of the connecting plate.

[0015] A construction method for recycled composite concrete beams and slabs, the method using the recycled composite concrete beams and slabs described in claims 1-9, the method comprising the following steps: S1: When using a concrete placing boom to pour concrete beams and slabs, the concrete placing boom's discharge pipe will continuously output concrete. At this time, start the electric push rod on the connecting plate, so that the electric push rod moves down with the connecting plate and vibrator through the output end. S2: After the electric push rod moves down with the vibrator, it will insert into the concrete to vibrate the concrete beams and slabs. At the same time, the installation of reinforcing bars between the connecting plate and the discharge pipe can help fix it. S3: Since the multi-stage telescopic tube is composed of several hollow round tubes that are slidably connected, when the connecting plate moves, it will carry the multi-stage telescopic tube along with it, thus protecting the output end of the electric push rod.

[0016] The beneficial effects of this invention are as follows: 1. The present invention discloses a recycled mixed concrete beam and slab and its construction method. An electric actuator, carrying a connecting plate and a vibrator, moves downwards through its output end, allowing the vibrator to insert into the concrete for compaction. Reinforcing ribs installed between the connecting plate and the discharge pipe provide auxiliary fixation, strengthening the connection plate's stability and preventing loosening between the connecting plate and the fixing ring due to prolonged vibration. Multi-stage telescopic pipes between the connecting plate and the connecting plate protect the output end of the electric actuator. The designed structure allows the vibrator to follow and cooperate in real-time as the concrete is discharged from the discharge pipe to form the beam and slab, enabling rapid and efficient compaction. This prevents concrete from accumulating at a single point within the formwork, causing air bubbles. It also prevents excessively thick accumulation during concrete placement, which can lead to aggregate settling and slurry floating, resulting in segregation. Furthermore, the integrated design of the vibrator and discharge pipe eliminates the need for personnel to approach, reducing safety hazards.

[0017] 2. In the recycled mixed concrete beam and slab and its construction method described in this invention, when the vibrator completes the vibration operation and moves upward and resets through the through groove, it first contacts the scraper at the bottom of the fixed plate, using the scraper to remove the concrete adhering to the surface of the vibrator. As the vibrator continues to move upward, the brush in the through groove performs a secondary cleaning of the vibrator, further reducing the amount of concrete on the vibrator. When the vibrator moves upward, the multi-stage telescopic tube retracts and resets, thereby compressing the internal gas. This gas then enters the collar through the air outlet and connecting pipe, and is blown onto the surface of the vibrator through several air outlets on the collar. The blown gas, in conjunction with the scraper and brush, cleans the concrete surface of the vibrator, thereby reducing the occurrence of poor subsequent vibration effects due to concrete adhesion.

[0018] 3. In the recycled mixed concrete beam and slab and its construction method described in this invention, after the connecting plate carrying the vibrator returns to its initial position, the electric push rod continues to move the connecting plate upwards, causing the arc-shaped extrusion plate on the connecting plate to compress the elastic block. This allows the gas inside the elastic block to enter the chute through the air guide pipe. The gas pushes the sliding plate, elastic rope, and agitator rod to slide away from the chute. Several agitator rods insert into the brush to agitate, thereby dislodging concrete residue that has fallen into the brush and preventing concrete residue from remaining on the brush for subsequent use. After the above operation is completed, the electric push rod moves the connecting plate downwards to its original position, causing the extrusion plate to stop compressing the elastic block. The gas in the chute then flows back into the elastic block through the air guide pipe. At this time, the elastic rope, sliding plate, and agitator rod return to their original positions in the chute, thus not affecting the subsequent movement and cleaning of the agitator rod. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the fabric feeding machine in this invention; Figure 2 This is a schematic diagram of the structure at the connecting plate in this invention; Figure 3 This is a bottom view of the connecting disk structure in this invention; Figure 4 This is a schematic diagram of the structure of the vibrating rod in this invention; Figure 5 This is a schematic diagram of the structure of the multi-stage telescopic tube in this invention; Figure 6 This is a schematic diagram of the structure of the collar in this invention; Figure 7 This is a partial cross-sectional view of the fixing plate in this invention; Figure 8 In this invention Figure 7 Schematic diagram of the structure at point A Figure 9 This is a flowchart illustrating the construction method of the present invention.

[0021] In the diagram: 1. Fabric placing machine; 2. Discharge pipe; 10. Vibration mechanism; 11. Fixing ring; 12. Connecting plate; 13. Electric actuator; 14. Vibrating rod; 15. Multi-stage telescopic pipe; 16. Reinforcing rib; 17. Connecting disc; 20. Cleaning mechanism; 21. Fixing plate; 22. Through groove; 23. Scraper; 24. Brush; 30. Air blowing mechanism; 31. Air inlet pipe; 32. Air outlet pipe; 33. Connecting pipe; 34. Connecting rod; 35. Collar; 36. Air outlet; 40. Agitating mechanism; 41. Elastic block; 42. Air guide pipe; 43. Slide groove; 44. Slide plate; 45. Agitating rod; 46. Elastic rope; 47. Extrusion plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 8As shown in the embodiment of the present invention, a recycled mixed concrete beam and slab and its construction method include a concrete placing machine 1 and a discharge pipe 2; it also includes a vibration mechanism 10 disposed on the concrete placing machine 1 and near the discharge pipe 2; the vibration mechanism 10 includes a fixing ring 11 fixedly sleeved with the discharge pipe 2, a connecting plate 12 fixedly installed on the outside of the fixing ring 11, an electric push rod 13 fixedly installed on the top of the connecting plate 12, the output end of the electric push rod 13 passing through the connecting plate 12, and a connecting plate 17 fixedly installed on the output end of the electric push rod 13, and a vibrating rod 14 fixedly installed on the bottom of the connecting plate 17.

[0024] Specifically, reinforcing ribs 16 are fixedly installed on the top and bottom of the connecting plate 12, and the end of the reinforcing rib 16 away from the connecting plate 12 is fixedly connected to the discharge pipe 2. A multi-stage telescopic pipe 15 is fixedly installed between the connecting plate 12 and the connecting disc 17. The multi-stage telescopic pipe 15 covers the output end of the electric push rod 13 and is composed of several hollow round tubes that are slidably connected.

[0025] During operation, when the concrete placing boom 1 is used to pour concrete beams and slabs, the discharge pipe 2 of the placing boom 1 continuously outputs concrete. At this time, the electric push rod 13 on the connecting plate 12 is activated, allowing the electric push rod 13 to move downwards through the output end, carrying the connecting plate 17 and the vibrator 14. This allows the vibrator 14 to insert into the concrete, vibrating the poured concrete beams and slabs. Simultaneously, the installation of reinforcing ribs 16 between the connecting plate 12 and the discharge pipe 2 provides auxiliary fixing, thereby strengthening the fixing effect of the connecting plate 12 and preventing loosening between the connecting plate 12 and the fixing ring 11 due to prolonged vibration. Furthermore, the installation of multi-stage telescopic pipes 15 between the connecting plate 12 and the connecting plate 17 protects the output end of the electric push rod 13. Since the multi-stage telescopic tube 15 is composed of several hollow round tubes that are slidably connected, the connecting plate 17 will carry the multi-stage telescopic tube 15 along with it when it moves. This allows the multi-stage telescopic tube 15 to protect the output end of the electric push rod 13, preventing it from being directly exposed. This effectively prevents impurities from sticking to the output end and affecting the normal sliding and contraction of the electric push rod 13.

[0026] The aforementioned structural design allows the vibrator 14 to work in real-time with the discharge pipe 2 as it pours concrete to form beams and slabs, enabling rapid and efficient compaction of the concrete. This prevents concrete from accumulating at a single point within the formwork, which could trap air and create bubbles. It also prevents excessively thick concrete buildup during placement, which could lead to aggregate settling and slurry rising, causing segregation. Furthermore, the integrated design of the vibrator 14 and discharge pipe 2 eliminates the need for personnel to approach, reducing safety hazards.

[0027] A cleaning mechanism 20 is provided on the connecting plate 12. The cleaning mechanism 20 includes a fixed plate 21 that is fixedly connected to the connecting plate 12 and is in the shape of an "L". A through groove 22 is provided on the top of the fixed plate 21, and the through groove 22 is located below the vibrating rod 14. A scraper 23 is fixedly installed on the bottom of the fixed plate 21, and a brush 24 is fixedly installed in the through groove 22 of the fixed plate 21.

[0028] Specifically, the multi-stage telescopic tube 15 is equipped with an air blowing mechanism 30. The air blowing mechanism 30 includes an air inlet pipe 31 connected to the interior of the multi-stage telescopic tube 15 and equipped with a one-way valve. An air outlet pipe 32 connected to the interior and equipped with a one-way valve is fixedly installed on one side of the multi-stage telescopic tube 15. Several hollow circular tubes of the multi-stage telescopic tube 15 are sealed and sliding, and the several circular tubes are connected to each other through through holes. Several connecting rods 34 connected to the air outlet pipes 32 are provided on the fixing plate 21. Several connecting rods 34 are fixedly installed on the fixing plate 21. A hollow collar 35 is fixedly installed on the top of the connecting rod 34. Several air outlet holes 36 connected to the interior are opened on the surface of the collar 35. The end of the connecting pipe 33 away from the multi-stage telescopic tube 15 is connected to the interior of the collar 35.

[0029] During operation, when the vibrating rod 14 completes the vibration operation and moves upward and resets through the through groove 22, it first contacts the scraper 23 at the bottom of the fixing plate 21, using the scraper 23 to scrape off the concrete adhering to the surface of the vibrating rod 14. As the vibrating rod 14 continues to move upward, the brush 24 in the through groove 22 will perform a secondary brushing and cleaning of the vibrating rod 14, further reducing the amount of concrete on the vibrating rod 14.

[0030] When the vibrator 14 moves downwards for compaction, the multi-stage telescopic tube 15 stretches and moves along with it, drawing in external gas through the air inlet pipe 31 with a one-way valve. This gas is then injected into several circular tubes within the multi-stage telescopic tube 15 through several through-holes, filling it with gas. When the vibrator 14 moves upwards, the multi-stage telescopic tube 15 contracts and resets, compressing the internal gas. This gas then enters the collar 35 through the air outlet pipe 32 and connecting pipe 33, and is blown onto the surface of the vibrator 14 through several air outlets in the collar 35. The blown gas, in conjunction with the scraper 23 and brush 24, cleans the concrete surface of the vibrator 14, reducing the likelihood of poor subsequent compaction due to concrete adhesion.

[0031] The bottom of the connecting plate 12 is provided with an agitation mechanism 40, which includes several hollow elastic blocks 41 fixedly installed at the bottom of the connecting plate 12; the interior of the fixed plate 21 is provided with several sliding grooves 43 that are connected to the through groove 22, and the interior of the sliding groove 43 is sealed and slidably connected with a sliding plate 44. An agitation rod 45 is fixedly installed on one side of the sliding plate 44, and the sliding groove 43 and the elastic blocks 41 are connected by an air guide pipe 42.

[0032] Specifically, several elastic ropes 46 are fixedly installed between the slide plate 44 and the slide groove 43. Several arc-shaped extrusion plates 47 are fixedly installed on the top of the connecting plate 17.

[0033] During operation, after the connecting plate 17 moves and resets the vibrator 14 to its initial position, the electric push rod 13 continues to move the connecting plate 17 upwards, causing the arc-shaped extrusion plate 47 on the connecting plate 17 to compress the elastic block 41. This allows the gas inside the elastic block 41 to enter the chute 43 through the air guide pipe 42. The gas pushes the slide plate 44, elastic rope 46, and agitator rod 45 to slide away from the chute 43 (note that the slide plate 44 will not slide out of the chute 43). Several agitator rods 45 are inserted into the brush 24 to agitate, thereby dislodging concrete residue that has fallen into the brush 24 and preventing concrete residue from remaining in the brush 24 for subsequent use. After the above operations are completed, the electric push rod 13 moves down and resets the connecting plate 17, so that the squeezing plate 47 no longer squeezes the elastic block 41, and the gas in the chute 43 flows back into the elastic block 41 through the air guide pipe 42. At this time, the elastic rope 46 moves the slide plate 44, the slide plate 44 and the stirring rod 45 back into the chute 43, so as not to affect the subsequent movement and cleaning of the stirring rod 45.

[0034] like Figure 9 As shown, a construction method for recycled composite concrete beams and slabs, using the aforementioned recycled composite concrete beams and slabs, includes the following steps: S1: When concrete beams and slabs are poured using the concrete placing boom 1, the discharge pipe 2 of the concrete placing boom 1 will continuously output concrete. At this time, the electric push rod 13 on the connecting plate 12 will be activated, allowing the electric push rod 13 to move down through the output end, carrying the connecting plate 17 and the vibrating rod 14. S2: After the electric push rod 13 moves down with the vibrator 14, it will be inserted into the concrete to vibrate the concrete beam and slab. At the same time, the reinforcing rib 16 installed between the connecting plate 12 and the discharge pipe 2 can play an auxiliary role in fixing. S3: Since the multi-stage telescopic tube 15 is composed of several hollow round tubes that are slidably connected, when the connecting plate 17 moves, it will carry the multi-stage telescopic tube 15 along with it, so that the multi-stage telescopic tube 15 protects the output end of the electric push rod 13.

[0035] Working Principle: When using the concrete placing boom 1 to pour concrete beams and slabs, the discharge pipe 2 of the concrete placing boom 1 continuously outputs concrete. At this time, the electric push rod 13 on the connecting plate 12 is activated, allowing the electric push rod 13 to move downwards through its output end, carrying the connecting plate 17 and the vibrator 14. This allows the vibrator 14 to insert into the concrete, vibrating the poured concrete beams and slabs. Simultaneously, the reinforcing rib 16 installed between the connecting plate 12 and the discharge pipe 2 provides auxiliary fixation. Furthermore, the multi-stage telescopic tube 15 installed between the connecting plate 12 and the connecting plate 17 protects the output end of the electric push rod 13. Since the multi-stage telescopic tube 15 is composed of several hollow circular tubes slidingly connected, the connecting plate 17 moves along with the multi-stage telescopic tube 15, thus protecting the output end of the electric push rod 13 from direct exposure. This effectively prevents impurities from adhering to the output end and affecting the normal sliding contraction of the electric push rod 13.

[0036] When the vibrating rod 14 completes the vibration operation and moves upward and resets through the through groove 22, it first contacts the scraper 23 at the bottom of the fixing plate 21, using the scraper 23 to scrape off the concrete adhering to the surface of the vibrating rod 14. As the vibrating rod 14 continues to move upward, the brush 24 in the through groove 22 will perform a secondary brushing and cleaning of the vibrating rod 14, further reducing the amount of concrete on the vibrating rod 14. When the vibrating rod 14 moves downward for vibration, because the multi-stage telescopic tube 15 moves and stretches along with the vibrating rod 14, it will draw in external gas through the air inlet pipe 31 with a one-way valve, and inject it into several circular tubes of the multi-stage telescopic tube 15 through several through holes, so that the multi-stage telescopic tube 15 is filled with gas. When the vibrating rod 14 moves upward, the multi-stage telescopic tube 15 will retract and reset, thereby squeezing the gas inside. This allows the gas inside the multi-stage telescopic tube 15 to enter the collar 35 through the air outlet 32 ​​and the connecting pipe 33, and then blown onto the surface of the vibrating rod 14 through several air outlets of the collar 35.

[0037] After the connecting plate 17, carrying the vibrator 14, moves back to its initial position, the electric push rod 13 continues to move the connecting plate 17 upwards, causing the arc-shaped extrusion plate 47 on the connecting plate 17 to compress the elastic block 41. This allows the gas inside the elastic block 41 to enter the chute 43 through the air guide pipe 42. The gas pushes the sliding plate 44, elastic rope 46, and agitator 45 to slide away from the chute 43. Several agitator 45 insert into the brush 24 to agitate, thereby dislodging any concrete residue that has fallen into the brush 24 and preventing it from remaining in the brush 24 for subsequent use. After completing the above operations, the electric push rod 13 moves the connecting plate 17 downwards to its initial position, causing the extrusion plate 47 to stop compressing the elastic block 41. The gas in the chute 43 then flows back into the elastic block 41 through the air guide pipe 42. At this time, the elastic rope 46 moves the sliding plate 44, the sliding plate 44, and the agitator 45 back into the chute 43, thus not affecting the subsequent movement and cleaning of the agitator 45.

[0038] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A recycled hybrid concrete beam slab comprising a placing machine (1) and a discharge tube (2); characterized in that: It also includes the vibration mechanism (10) set on the cloth machine (1) and close to the discharge pipe (2); The vibration mechanism (10) includes a fixed ring (11) fixedly sleeved with the discharge pipe (2), a connecting plate (12) fixedly installed on the outer surface of the fixed ring (11), an electric push rod (13) fixedly installed on the top of the connecting plate (12), the output end of the electric push rod (13) penetrating through the connecting plate (12), and a connecting disc (17) fixedly installed on the output end of the electric push rod (13), and a vibrating rod (14) fixedly installed on the bottom of the connecting disc (17).

2. A recycled hybrid concrete beam slab according to claim 1, wherein: The top and top of the connecting plate (12) are fixedly installed with a reinforcing rib (16), and the end away from the connecting plate (12) of the reinforcing rib (16) is fixedly connected with the discharge pipe (2).

3. A recycled hybrid concrete beam slab according to claim 1, wherein: A multi-stage telescopic pipe (15) is fixedly installed between the connecting plate (12) and the connecting disc (17), the multi-stage telescopic pipe (15) covers the output end of the electric push rod (13), and the multi-stage telescopic pipe (15) is composed of a plurality of hollow circular pipes in sliding connection.

4. A recycled hybrid concrete beam slab according to claim 3, wherein: A cleaning mechanism (20) is arranged on the connecting plate (12), the cleaning mechanism (20) includes a fixed plate (21) fixedly connected with the connecting plate (12) and in "L" shape, a through groove (22) is formed in the top of the fixed plate (21), and the through groove (22) is below the vibrating rod (14); A scraper (23) is fixedly installed on the bottom of the fixed plate (21), and a brush (24) is fixedly installed in the through groove (22) of the fixed plate (21).

5. A recycled hybrid concrete beam slab according to claim 4, wherein: An air blowing mechanism (30) is arranged in the multi-stage telescopic pipe (15), the air blowing mechanism (30) includes an air inlet pipe (31) communicated with the inside of the multi-stage telescopic pipe (15) and provided with a one-way valve, one side of the multi-stage telescopic pipe (15) is fixedly installed with an air outlet pipe (32) communicated with the inside and provided with a one-way valve, the plurality of hollow circular pipes of the multi-stage telescopic pipe (15) are sealingly and slidably connected, and the plurality of circular pipes are connected through through holes; A plurality of connecting rods (34) are arranged on the fixed plate (21) and communicated with the air outlet pipe (32).

6. A recycled hybrid concrete beam slab according to claim 5, wherein: A plurality of connecting rods (34) are fixedly installed on the fixed plate (21), a hollow sleeve ring (35) is fixedly installed on the top of the connecting rod (34), a plurality of air outlet holes (36) are formed in the surface of the sleeve ring (35) and communicated with the inside, and the end away from the multi-stage telescopic pipe (15) of the connecting pipe (33) is communicated with the inside of the sleeve ring (35).

7. A recycled hybrid concrete beam slab according to claim 4, wherein: An agitating mechanism (40) is arranged on the bottom of the connecting plate (12), the agitating mechanism (40) includes a plurality of elastic blocks (41) fixedly installed on the bottom of the connecting plate (12) and hollow; A plurality of sliding grooves (43) are formed in the inside of the fixed plate (21) and communicated with the through groove (22), a sliding plate (44) is sealingly and slidably connected in the inside of the sliding groove (43), an agitating rod (45) is fixedly installed on one side of the sliding plate (44), and the sliding groove (43) and the elastic block (41) are communicated through an air guide pipe (42).

8. A recycled hybrid concrete beam slab according to claim 7, wherein: Several elastic ropes (46) are fixedly installed between the slide plate (44) and the slide groove (43).

9. A recycled hybrid concrete beam slab according to claim 8, wherein: Several arc-shaped extrusion plates (47) are fixedly installed on the top of the connecting plate (17).

10. A construction method of a recycled hybrid concrete slab, the method using the recycled hybrid concrete slab of claims 1-9, characterized in that: The method includes the following steps: S1: When using a concrete placing boom (1) to pour concrete beams and slabs, the discharge pipe (2) of the concrete placing boom (1) will continuously output concrete. At this time, start the electric push rod (13) on the connecting plate (12) and let the electric push rod (13) move down with the connecting plate (17) and the vibrating rod (14) through the output end. S2: The electric push rod (13) moves down with the vibrating rod (14) and inserts into the concrete to vibrate the concrete-poured beams and slabs. At the same time, the reinforcing rib (16) installed between the connecting plate (12) and the discharge pipe (2) can play an auxiliary role in fixing. S3: Since the multi-stage telescopic tube (15) is composed of several hollow round tubes that are slidably connected, when the connecting plate (17) moves, it will carry the multi-stage telescopic tube (15) along with it, so that the multi-stage telescopic tube (15) protects the output end of the electric push rod (13).

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