Surface defoaming equipment for prestressed concrete square pile

Abstract

The invention belongs to the technical field of forming equipment of prestressed concrete prefabricated parts, and discloses surface defoaming equipment of prestressed concrete square piles, which comprises a fixing plate, an air exhaust assembly and a defoaming assembly, the air exhaust assembly is mounted above the fixing plate, the defoaming assembly is mounted above the fixing plate, and the defoaming assembly is mounted above the fixing plate. The air exhaust assembly comprises a fixing cylinder installed at the top of the fixing plate, a connecting shaft is installed on the outer wall of the fixing cylinder in a penetrating mode, threads are formed in the outer wall of the connecting shaft, a worm wheel is installed on the outer wall of a reciprocating lead screw and engaged with the threads, and a cam is installed on the outer wall of the reciprocating lead screw. The reciprocating lead screw of the air exhaust assembly is linked with the cam, and the functions of moisture absorption, vibration and film covering of the defoaming assembly are combined, so that multi-mechanism cooperation of air exhaust, vibration crushing, humidity control and surface protection is achieved. By means of the design, the defoaming efficiency in the high-humidity environment is remarkably improved, the problems that traditional manual operation is low in efficiency and bubbles remain are solved, and the defoaming device is particularly suitable for the humid or unstable-air-pressure production environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of forming equipment for prestressed concrete precast components, and particularly relates to a surface defoaming device for prestressed concrete square piles. Background Art

[0002] As an important precast component in construction projects, the surface quality of concrete square piles directly affects the structural durability and appearance. During the concrete pouring process, due to reasons such as air mixed in during stirring and gas generated by chemical reactions, a large number of bubbles are easily formed on the surface. The traditional manual grinding method is inefficient. For example, manually using a grinding plate to eliminate bubbles one by one, and the labor intensity is high, which is difficult to meet the requirements of large-scale production. Although there have been advancements in the existing technology, there are still problems such as the balance between defoaming efficiency and energy consumption, and insufficient adaptability to complex working conditions. The surface defoaming of concrete square piles is a comprehensive requirement for structural safety, durability, and economy, and requires the coordinated control of multiple means such as vibration, defoaming agents, and process optimization. Ignoring defoaming may lead to a decrease in the bearing capacity of square piles, an increase in maintenance costs, and even engineering accidents. Therefore, it is a key process that cannot be omitted in precast concrete production. Prestressed concrete square piles are long strips, and when defoaming their surfaces, it needs to be carried out step by step.

[0003] In the existing technology, the surface defoaming treatment of concrete square piles is carried out after pouring into the mold. When manufacturing square piles in a high-humidity environment, the water vapor content in the air is relatively high, resulting in difficulty in evaporating the water on the surface of the square pile after the bubbles on the surface of the square pile are scraped off by a scraper, leading to bleeding after troweling, and thus causing quality problems with the square pile. In addition, when the air humidity is high, the air pressure is usually low, resulting in the expansion of the bubbles inside the square pile and increasing the risk of surface defects of the square pile. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a surface defoaming device for prestressed concrete square piles, which solves the technical problem of difficult elimination of bubbles on the surface of square piles in a high-humidity environment in the existing technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A surface defoaming device for prestressed concrete square piles, comprising a fixing plate, an air extraction component, and a defoaming component; The air extraction component is installed above the fixing plate, and the defoaming component is installed above the fixing plate; The air extraction component includes a fixed cylinder installed on the top of the fixing plate. A connecting shaft is installed through the outer wall of the fixed cylinder. A thread is provided on the outer wall of the connecting shaft. A first belt is installed around the outer wall of the connecting shaft. A reciprocating lead screw is installed inside the fixed cylinder. A worm gear is installed on the outer wall of the reciprocating lead screw, and the worm gear meshes with the thread. A cam is installed on the outer wall of the reciprocating lead screw; A mold is placed below the fixed plate. Track plates are installed on both outer walls of the mold. Drain holes are opened at the top of the mold. Steel strands are installed through the outer wall of the mold.

[0006] In some disclosures, a tensioner is installed on the outer wall of the mold. A fixing groove is opened at the top of the tensioner. A fixing shaft is installed on the inner wall of the fixing groove. A fixing shell is installed on the outer wall of the tensioner. A hydraulic device is installed on the inner wall of the fixing shell. A connecting plate is installed on the outer wall of the hydraulic device. One end of the steel strand is connected to the outer wall of the connecting plate. A film is installed on the outer wall of the fixing shaft.

[0007] In some disclosures, a first motor is installed on the top of the fixed plate. Multiple fixing brackets are installed on the top of the fixed plate. A fixing gasket is installed on the outer wall of the fixing bracket. A roller is installed on the outer wall of the fixing gasket through a shaft. A transmission shaft is installed on the outer wall of the roller. A belt pulley is installed on the outer wall of the transmission shaft. A second belt is installed around the outer wall of the transmission shaft, and the second belt is in transmission connection with the transmission shaft. A third belt is installed around the outer wall of the belt pulley.

[0008] In some disclosures, an L-shaped trowel is installed at the bottom of the fixed plate. An electric telescopic rod is installed on the top of the trowel, and the top of the electric telescopic rod extends out of the top of the fixed plate.

[0009] In some disclosures, a slide rod is installed on the inner wall of the fixed cylinder. A slider is slidably installed on the outer wall of the slide rod. A trigger rod is installed on the outer wall of the slider. A driving block is installed on the top of the slider, and the driving block is fitted with a reciprocating lead screw. An exhaust pipe is installed through the outer wall of the fixed cylinder. A controller is installed on the outer wall of the exhaust pipe. A lifting rod is installed through the top of the controller. A wedge block is installed on the top of the lifting rod. A first spring is installed around the outer wall of the lifting rod. A blocking block is installed at the bottom of the lifting rod, and the blocking block penetrates through the exhaust pipe.

[0010] In some disclosures, an air inlet cylinder is installed on the inner bottom wall of the fixed cylinder. An extrusion rod is installed through the top of the air inlet cylinder. An impact plate is installed on the top of the extrusion rod. A second spring is installed around the outer wall of the extrusion rod. A sealing plate is installed at the bottom of the extrusion rod, and the sealing plate is slidably connected inside the air inlet cylinder. Air inlet holes are opened on the outer wall of the air inlet cylinder. An air injection pipe is installed through the outer wall of the air inlet cylinder. A one-way valve is installed on the outer wall of the air injection pipe. Multiple air bags are installed at the bottom of the fixed plate, and the air bags are communicated with one end of the air injection pipe.

[0011] In some disclosures, the defoaming component includes a fixed box installed above the fixed frame. A partition plate is installed on the inner wall of the fixed box, which divides the fixed box into two chambers on the left and right, namely the left chamber and the right chamber. An air extraction pump is installed on the inner top wall of the left chamber. The input end of the air extraction pump is installed with a moisture absorption box, and the interior of the moisture absorption box is filled with moisture absorption cotton. A three-way pipe is installed at the bottom of the moisture absorption box. The top of the three-way pipe is connected to the moisture absorption box, and the right end of the three-way pipe is connected to an air extraction pipe, and the air extraction pipe is inclined at 45 degrees at the interface of the right end of the three-way pipe. The left end of the three-way pipe is installed with a collection box.

[0012] In some disclosures, an air outlet pipe is installed through the inner wall of the right chamber, and the air outlet pipe is communicated with the output end of the air extraction pump. A protective shell is installed on the outer wall of the air outlet pipe. A rotating rod is installed through the bottom of the protective shell. A fan blade is installed on the outer wall of the rotating rod. A plurality of impact balls are connected to the outer wall of the rotating rod through a cable. A vibrating rod is installed on the inner bottom wall of the right chamber, and the bottom of the vibrating rod extends below the fixed plate.

[0013] In some disclosures, a film laminator is installed on the top of the fixed plate. A second motor is installed on the inner wall of the film laminator. A film is installed around the output end of the second motor. A third spring is installed at the bottom of the fixed plate. An extrusion wheel is installed at the bottom of the third spring. A storage cavity is installed on the inner bottom wall of the film laminator, and the interior of the storage cavity is filled with an adhesive, and the film extends out of the bottom of the fixed plate through the interior of the storage cavity.

[0014] Explanations for the nouns, conjunctions or adjectives involved in the above technical solutions are as follows: Fixed connection means that after the parts or components are fixed, there is no relative movement between them; Rotational connection means that the connection between parts allows the parts to rotate relative to each other; Threaded connection is a detachable fixed connection, which has the advantages of simple structure, reliable connection, convenient installation and disassembly, etc., and is widely used in the fields of mechanical engineering and connection structures; Sliding connection means that the connection between parts allows the parts to slide relative to each other.

[0015] Advantages of the present invention: 1. Through the linkage of the reciprocating lead screw and the cam of the air extraction component in the present invention, combined with the moisture absorption, vibration and film laminating functions of the defoaming component, the multi-mechanism coordination of air extraction, vibration crushing, humidity control and surface protection is realized. This design significantly improves the defoaming efficiency in high-humidity environments, avoiding the problems of low efficiency and bubble residue in traditional manual operations, and is especially suitable for production environments with humidity or unstable air pressure.

[0016] 2. The equipment of the present invention adopts the first motor and the second motor to drive the transmission system, realize the automatic operation of roller movement, vacuum pump operation and film lamination, and reduce manual intervention. At the same time, the moisture-absorbing cotton of the moisture-absorbing box can be recycled, and the air extraction and vibration energy are transmitted and reused through the fan blades and the impact ball, reducing energy consumption costs.

[0017] 3. After defoaming, the present invention uses an L-shaped trowel to scrape the surface slurry flat, and the film covering device uses an adhesive to evenly cover the protective film to prevent bubble regeneration and enhance the anti-permeability of the square pile. The high-frequency vibration of the vibration rod further compacts the concrete structure and reduces internal microcracks, thereby improving the bearing capacity and long-term durability of the square pile and reducing the later maintenance cost.

[0018] 4. The present invention can perform prestressing treatment on the square piles by arranging steel strands and hydraulic rods. As a high-strength material, the steel strands have a strength of more than 1860MPa. They are elastically deformed by tensioning before concrete pouring to form prestress on the concrete. This prestress can offset the tensile stress generated by the concrete under the load, thereby avoiding or delaying the appearance of cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the screed plate part of an embodiment of the present invention; Figure 3 is a schematic diagram of the structure of a fixing frame part of an embodiment of the present invention; Figure 4 is a schematic diagram of the cross-sectional structure of a fixed cylinder according to an embodiment of the present invention; Figure 5 is a schematic diagram of the internal structure of a fixed cylinder according to an embodiment of the present invention; Figure 6 is a schematic diagram of the structure of the air intake cylinder part of an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of the fixed box part of an embodiment of the present invention; Figure 8 is a partial structural schematic diagram of a film laminator according to an embodiment of the present invention; Figure 9 is a partial structural schematic diagram of a steel strand according to an embodiment of the present invention; Figure 10 is a schematic diagram of the structure of a tensioner part of an embodiment of the present invention; Figure 11 This is a schematic cross-sectional structure diagram of the tensioner according to an embodiment of the present invention.

[0021] In the figure: 1. Mold; 11. Track plate; 12. Drain hole; 13. Steel strand; 2. Fixed plate; 21. First motor; 22. Fixed frame; 23. Fixed gasket; 24. Transmission shaft; 25. Second belt; 26. Belt pulley; 27. Third belt; 28. Roller; 3. Screed; 31. Electric telescopic rod; 4. Air extraction component; 40. Fixed cylinder; 41. Connecting shaft; 42. Thread; 43. First belt; 44. Reciprocating lead screw; 45. Worm; 46. Cam; 5. Slide bar; 51. Trigger rod; 52. Driving block; 53. Exhaust pipe; 54. Controller; 55. Wedge block; 56. First spring; 57. Blocking block; 6. Intake cylinder; 61. Extrusion rod; 62. Impact plate; 63. Second spring; 64. Sealing plate; 65. Intake hole; 66. Inflating pipe; 67. Check valve; 68. Airbag; 7. Defoaming component; 70. Fixed box; 71. Air extraction pump; 72. Moisture absorption box; 73. Collection box; 74. Air extraction pipe; 8. Outlet pipe; 81. Protective shell; 82. Rotating rod; 83. Fan blade; 84. Impact ball; 85. Vibration rod; 9. Film laminator; 91. Second motor; 92. Third spring; 93. Extrusion wheel; 94. Storage cavity; 10. Tensioner; 1001. Fixed groove; 1002. Fixed shaft; 1003. Fixed shell; 1004. Hydraulic rod; 1005. Connecting plate; 1006. Film. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 5 , Figure 6 and Figure 7, A surface defoaming device for prestressed concrete square piles, including a fixing plate 2, an air extraction component 4 and a defoaming component 7. An air extraction component 4 is installed above the fixing plate 2, and a defoaming component 7 is installed above the fixing plate 2. The air extraction component 4 includes a fixing cylinder 40 installed on the top of the fixing plate 2. A connecting shaft 41 is installed through the outer wall of the fixing cylinder 40. Threads 42 are provided on the outer wall of the connecting shaft 41. A first belt 43 is installed around the outer wall of the connecting shaft 41. A reciprocating lead screw 44 is installed on the inner wall of the fixing cylinder 40. A worm gear 45 is installed on the outer wall of the reciprocating lead screw 44, and the worm gear 45 meshes with the threads 42. A cam 46 is installed on the outer wall of the reciprocating lead screw 44. The inner bottom wall of the fixing cylinder 40 is installed with an air inlet cylinder 6. A pressing rod 61 is installed through the top of the air inlet cylinder 6. An impact plate 62 is installed on the top of the pressing rod 61. A second spring 63 is installed around the outer wall of the pressing rod 61. A sealing plate 64 is installed at the bottom of the pressing rod 61, and the sealing plate 64 is slidably connected inside the air inlet cylinder 6. Air inlet holes 65 are provided on the outer wall of the air inlet cylinder 6. An air injection pipe 66 is installed through the outer wall of the air inlet cylinder 6. A one-way valve 67 is installed on the outer wall of the air injection pipe 66. A plurality of air bags 68 are installed at the bottom of the fixing plate 2, and the air bags 68 are communicated with one end of the air injection pipe 66.

[0024] Specifically, the first motor 21 drives the connecting shaft 41 to rotate through the second belt 25. The rotation of the connecting shaft 41 drives the rotation of the threads 42. The threads 42 and the worm gear 45 form a worm and worm gear structure, thereby driving the rotation of the worm gear 45. The worm gear 45 drives the rotation of the reciprocating lead screw 44, and further drives the rotation of the cam 46. The rotation of the cam 46 will reciprocally press the impact plate 62. The downward movement of the impact plate 62 drives the downward movement of the pressing rod 61. The downward movement of the pressing rod 61 drives the expansion and contraction of the second spring 63. At this time, external air enters the inside of the air injection cylinder 6 through the air inlet holes 65. Subsequently, the pressing rod 61 drives the sealing plate 64 to press the air downward. The air passes through the one-way valve 67 and the air injection pipe 66 and enters the air bags 68, causing the air bags 68 to expand. The air bags are closely attached to the upper surface of the concrete square pile, sealing the upper surface of the square pile to facilitate negative pressure air extraction to eliminate the bubbles on the surface of the square pile. It should be noted that while the first motor 21 drives the roller 28 to move, it seals the upper surface of the square pile, divides the upper surface of the square pile into multiple continuous areas, and separately seals and extracts air from each area to eliminate the bubbles, so that the bubbles on the surface of the unfixed concrete square pile are eliminated, and the bubbles inside can also be discharged from the inside of the concrete to the outside.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3, a mold 1 is placed below the fixed plate 2. Rail plates 11 are installed on the outer walls on both sides of the mold 1. A mold 1 is placed below the fixed plate 2. Rail plates 11 are installed on the outer walls on both sides of the mold 1. A drain hole 12 is opened at the top of the mold 1. A steel strand 13 is installed through the outer wall of the mold 1. A first motor 21 is installed on the top of the fixed plate 2. A plurality of fixing brackets 22 are installed on the top of the fixed plate 2. A fixing gasket 23 is installed on the outer wall of the fixing bracket 22. A roller 28 is installed on the outer wall of the fixing gasket 23 through a shaft. A transmission shaft 24 is installed on the outer wall of the roller 28. A belt pulley 26 is installed on the outer wall of the transmission shaft 24. A second belt 25 is installed around the outer wall of the transmission shaft 24, and the second belt 25 is in transmission connection with the transmission shaft 24. A third belt 27 is installed around the outer wall of the belt pulley 26. An L-shaped trowel plate 3 is installed at the bottom of the fixed plate 2. An electric telescopic rod 31 is installed on the top of the trowel plate 3, and the top of the electric telescopic rod 31 extends out of the top of the fixed plate 2. A tensioner 10 is installed on the outer wall of the mold 1. A fixing groove 1001 is opened at the top of the tensioner 10. A fixing shaft 1002 is installed on the inner wall of the fixing groove 1001. A fixing shell 1003 is installed on the outer wall of the tensioner 10. A hydraulic rod 1004 is installed on the inner wall of the fixing shell 1003. A connecting plate 1005 is installed on the outer wall of the hydraulic rod 1004. One end of the steel strand 13 is connected to the outer wall of the connecting plate 1005. A film 1006 is installed on the outer wall of the fixing shaft 1002.

[0026] Specifically, when manufacturing a prestressed concrete square pile, first, the steel strand 13 is threaded through the mold 1. Subsequently, a release agent is applied in the mold 1 to facilitate subsequent demolding. Then, the concrete is poured into the mold 1. At this time, the steel strand, as a high-strength material (the strength can reach more than 1860 MPa), undergoes elastic deformation through tension before the concrete is poured, forming a precompressive stress on the concrete. This precompressive stress can offset the tensile stress generated by the concrete under the action of the load, avoiding or delaying the appearance of cracks. Start the hydraulic rod 1004. The contraction of the hydraulic rod 1004 drives the connecting plate 1005 to move. The movement of the connecting plate 1005 pulls the steel strand 13 to tighten, and the tensioning force is adjusted to enhance the strength of the prestressed concrete square pile. It should be noted that the roller 28 travels on the rail plate 11. The prestressed concrete square pile is placed in the mold 1. The first motor 21 operates to drive the second belt 25 to operate. The second belt 25 drives the transmission shaft 24 to rotate. The transmission shaft 24 drives the roller 28 to rotate through the belt pulley 26 and the third belt 27, thereby driving the device to move above the mold 1 to facilitate defoaming on the surface of the square pile. It should be noted that when defoaming, first, the electric telescopic rod 31 expands and contracts to adjust the distance between the trowel plate 3 and the upper surface of the square pile. After adjustment, as the device moves, the trowel plate 3 levels the upper surface of the square pile to initially eliminate the bubbles.

[0027] Please refer toFigure 4 On the inner wall of the fixed cylinder 40, a sliding rod 5 is installed. A slider is slidably installed on the outer wall of the sliding rod 5. A trigger rod 51 is installed on the outer wall of the slider. A driving block 52 is installed on the top of the slider, and the driving block 52 is fitted and installed with the reciprocating lead screw 44. An exhaust pipe 53 is installed through the outer wall of the fixed cylinder 40. A controller 54 is installed on the outer wall of the exhaust pipe 53. A lifting rod is installed through the top of the controller 54. A wedge-shaped block 55 is installed on the top of the lifting rod. A first spring 56 is installed around the outer wall of the lifting rod. A blocking block 57 is installed at the bottom of the lifting rod, and the blocking block 57 penetrates through the exhaust pipe 53. The exhaust pipe 53 is communicated with the airbag 68.

[0028] Specifically, when the device walks on the track slab 11, with the change of the walking distance, at this time, the airbag 68 is inflated again and closely adheres to the upper surface of the square pile, thereby sealing the upper surface of the square pile. At this time, the sealed area is closely adhered to the area sealed last time, and the area of the sealed area is the same as the area surrounded by the airbag 68. Through reasonable design of components such as the reciprocating lead screw 44 and the thread 42, the walking distance of the device can just drive the airbag 68 to expand; It should be noted that when the reciprocating lead screw 44 rotates to drive the driving block 52 to move, the driving block 52 drives the slider and the trigger rod 51 to move. When the trigger rod 51 contacts the wedge-shaped block 55, it will squeeze the wedge-shaped block 55, causing the lifting rod to descend and drive the lower blocking block 57 to descend. The blocking block 57 no longer blocks the exhaust pipe 53, so that the air in the airbag 68 is discharged, and the airbag 68 contracts, and then the sealing stops, so as to facilitate the device to move to the next area.

[0029] Please refer to Figure 7 The defoaming assembly 7 includes a fixed box 70 installed above the fixed frame 22. A partition plate is installed on the inner wall of the fixed box 70, and the fixed box 70 is divided into two left and right chambers by the partition plate, namely the left chamber and the right chamber. An air extraction pump 71 is installed on the inner top wall of the left chamber. A moisture absorption box 72 is installed at the input end of the air extraction pump 71. Moisture absorption cotton is filled in the moisture absorption box 72. A three-way pipe is installed at the bottom of the moisture absorption box 72. The top end of the three-way pipe is communicated with the moisture absorption box 72. The right end of the three-way pipe is connected with an air extraction pipe 74, and the air extraction pipe 74 is inclined at 45 degrees at the interface of the right end of the three-way pipe. A collection box 73 is installed at the left end of the three-way pipe. An air outlet pipe 8 is installed through the inner wall of the right chamber, and the air outlet pipe 8 is communicated with the output end of the air extraction pump 71. A protective shell 81 is installed on the outer wall of the air outlet pipe 8. A rotating rod 82 is installed through the bottom of the protective shell 81. A fan blade 83 is installed on the outer wall of the rotating rod 82. A plurality of impact balls 84 are connected to the outer wall of the rotating rod 82 through cables. A vibrating rod 85 is installed on the inner bottom wall of the right chamber, and the bottom of the vibrating rod 85 extends below the fixing plate 2.

[0030] Specifically, during sealing, the air extraction pump 71 operates, and the air extraction pipe 74 sucks in the humid air in the sealing area. Subsequently, the humid air enters the interior of the moisture absorption box 72 along the pipeline, and the moisture in the air is absorbed by the moisture absorption cotton. Then, the dry air is discharged. By means of air extraction, the sealing area is made negative pressure, and the bubbles on the surface of the square pile burst, realizing the defoaming function. At the same time, by means of air extraction, the humid air in the sealing area is discharged, reducing the air humidity in this area and preventing quality problems of the square pile caused by excessive humidity; It should be noted that while extracting air, the air discharged by the air extraction pump 71 passes through the air outlet pipe 8, and the air impacts the fan blade 83, causing the fan blade 83 to rotate. Then, the rotating rod 82 and the impact ball 84 are driven to rotate. The impact ball 84 impacts the vibration rod 85. At this time, the vibration rod 85 is inserted into the interior of the square pile, and the bubbles inside the square pile are vibrated to the surface of the square pile by vibration, further eliminating the bubbles inside the square pile and improving the quality of the square pile.

[0031] Please refer to Figure 8 , a film laminator 9 is installed on the top of the fixing plate 2. A second motor 91 is installed on the inner wall of the film laminator 9. A film is installed around the output end of the second motor 91. A third spring 92 is installed at the bottom of the fixing plate 2. An extrusion wheel 93 is installed at the bottom of the third spring 92. A storage cavity 94 is installed on the inner bottom wall of the film laminator 9. An adhesive is filled in the storage cavity 94, and the film extends out of the bottom of the fixing plate 2 through the interior of the storage cavity 94.

[0032] Specifically, after defoaming, the second motor 91 rotates. When the film 1006 passes through the storage cavity 94, the surface of the film adheres to the adhesive. Under the action of the extrusion wheel 93, as the device moves, the film is fixed on the surface of the square pile, thereby isolating the surface of the square pile from the external air and preventing the humid air from affecting the quality of the square pile; It should be noted that during film lamination, first, one end of the film 1006 is fixed on the fixed shaft 1002. When the device moves with the film laminator 9, the film 1006 unfolds and thus covers the surface of the mold 1, realizing the film lamination function.

[0033] Usage steps: Install the fixing plate and the mold Place the mold 1 under the fixing plate 2, and install track plates 11 on both sides of the mold to ensure that the fixing plate 2 and the mold 1 are aligned and fixed.

[0034] Install a first motor 21, multiple fixing brackets 22, and fixing gaskets 23 on the top of the fixing plate 2. The roller 28 is connected to the belt pulley 26 through the transmission shaft 24, and the transmission linkage is realized through the second belt 25 and the third belt 27.

[0035] Install the air extraction component. Install a fixed cylinder 40 on the top of the fixing plate 2, penetrate the connecting shaft 41, and set a thread 42 and a first belt 43 on its outer wall.

[0036] Inside the fixed cylinder 40, a reciprocating lead screw 44 is installed. The worm gear 45 meshes with the thread 42, and the cam 46 is fixed to the outer wall of the reciprocating lead screw 44.

[0037] The slide bar 5 is installed in cooperation with the slider. The trigger rod 51 and the driving block 52 are connected to the reciprocating lead screw 44. A controller 54 is installed on the outer wall of the exhaust pipe 53, and the airflow is controlled through the lifting rod, the wedge block 55 and the blocking block 57.

[0038] Install the defoaming component. A fixed box 70 is installed above the fixed frame 22 and is divided into left and right chambers. An air extraction pump 71, a moisture absorption box 72 and a collection box 73 are installed in the left chamber. The air extraction pipe 74 is obliquely connected to the three-way pipe at an angle of 45°. An air outlet pipe 8, a fan blade 83, an impact ball 84 and a vibration rod 85 are installed in the right chamber. The vibration rod 85 extends to the surface of the mold 1.

[0039] Install the film laminator. A film laminator 9 is installed on the top of the fixed plate 2, and a second motor 91, a film and a storage cavity 94 are arranged inside. The extrusion wheel 93 presses against the surface of the square pile through the third spring 92, and the film is evenly covered through the adhesive.

[0040] Debug the drive system. Start the first motor 21 and drive the transmission shaft 24 and the belt pulley 26 through the second belt 25 and the third belt 27 to ensure that the roller 28 moves smoothly along the track plate 11.

[0041] Check the meshing state of the reciprocating lead screw 44 and the worm gear 45, and confirm that the cam 46 periodically pushes the trigger rod 51 on the slide bar 5.

[0042] Test the air extraction and defoaming functions. Start the air extraction pump 71, extract the gas on the surface of the mold 1 through the air extraction pipe 74, the moisture absorption cotton in the moisture absorption box 72 adsorbs the water vapor, and the dry gas is discharged through the air outlet pipe 8.

[0043] The fan blade 83 is driven by the airflow to rotate, driving the impact ball 84 to strike the vibrating rod 85, and transmitting the vibration to the surface of the mold 1 to assist in defoaming.

[0044] Calibrate the film laminating function. Start the second motor 91, release the film and evenly coat it through the adhesive in the storage cavity 94. Adjust the pressure of the third spring 92 to ensure that the extrusion wheel 93 fits the surface of the square pile.

[0045] The equipment moves along the track plate 11. The air extraction component 4 drives the cam 46 through the reciprocating lead screw 44, periodically compresses the sealing plate 64 in the air intake cylinder 6, and generates negative pressure to suck out the bubbles.

[0046] The defoaming component 7 works synchronously. The air extraction pump 71 sucks out the moisture, and the vibrating rod 85 vibrates at a high frequency to break the remaining bubbles.

[0047] Surface leveling and film covering. The electric telescopic rod 31 controls the L-shaped leveling plate 3 to press down, scraping and leveling the floating slurry on the surface of the square pile. The film covering device 9 follows closely, and the film evenly covers the surface of the square pile through the pressing wheel 93, and the adhesive cures to form a protective layer. In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A surface defoaming device for prestressed concrete square piles, characterized in that, It includes a fixed plate (2), an air extraction component (4) and an anti-foaming component (7); An air extraction component (4) is installed above the fixed plate (2), and an anti-foaming component (7) is installed above the fixed plate (2); The air extraction component (4) includes a fixed cylinder (40) installed on the top of the fixed plate (2). A connecting shaft (41) is installed through the outer wall of the fixed cylinder (40). Threads (42) are provided on the outer wall of the connecting shaft (41). A first belt (43) is installed around the outer wall of the connecting shaft (41). A reciprocating lead screw (44) is installed on the inner wall of the fixed cylinder (40). A worm gear (45) is installed on the outer wall of the reciprocating lead screw (44), and the worm gear (45) meshes with the threads (42). A cam (46) is installed on the outer wall of the reciprocating lead screw (44); A mold (1) is placed below the fixed plate (2). Track plates (11) are installed on the outer walls on both sides of the mold (1). Drain holes (12) are provided on the top of the mold (1). Steel strands (13) are installed through the outer wall of the mold (1).

2. The surface defoaming device for a prestressed concrete square pile according to claim 1, characterized in that, A tensioner (10) is installed on the outer wall of the mold (1). A fixing groove (1001) is provided on the top of the tensioner (10). A fixing shaft (1002) is installed on the inner wall of the fixing groove (1001). A fixing shell (1003) is installed on the outer wall of the tensioner (10). A hydraulic rod (1004) is installed on the inner wall of the fixing shell (1003). A connecting plate (1005) is installed on the outer wall of the hydraulic rod (1004). One end of the steel strand (13) is connected to the outer wall of the connecting plate (1005). A thin film (1006) is installed on the outer wall of the fixing shaft (1002).

3. The surface defoaming device for a prestressed concrete square pile according to claim 1, characterized in that, A first motor (21) is installed on the top of the fixed plate (2). A plurality of fixing frames (22) are installed on the top of the fixed plate (2). A fixing gasket (23) is installed on the outer wall of the fixing frame (22). A roller (28) is installed on the outer wall of the fixing gasket (23) through a shaft. A transmission shaft (24) is installed on the outer wall of the roller (28). A belt pulley (26) is installed on the outer wall of the transmission shaft (24). A second belt (25) is installed around the outer wall of the transmission shaft (24), and the second belt (25) is in transmission connection with the transmission shaft (24). A third belt (27) is installed around the outer wall of the belt pulley (26).

4. The surface defoaming device for a prestressed concrete square pile according to claim 3, characterized in that, An L-shaped trowel plate (3) is installed on the bottom of the fixed plate (2). An electric telescopic rod (31) is installed on the top of the trowel plate (3), and the top of the electric telescopic rod (31) extends out of the top of the fixed plate (2).

5. The surface defoaming device for a prestressed concrete square pile according to claim 1, characterized in that, A slide bar (5) is installed on the inner wall of the fixed cylinder (40). A slider is slidably installed on the outer wall of the slide bar (5). A trigger rod (51) is installed on the outer wall of the slider. A driving block (52) is installed on the top of the slider, and the driving block (52) is fitted and installed with a reciprocating lead screw (44). An exhaust pipe (53) is installed through the outer wall of the fixed cylinder (40). A controller (54) is installed on the outer wall of the exhaust pipe (53). A lifting rod is installed through the top of the controller (54). A wedge block (55) is installed on the top of the lifting rod. A first spring (56) is installed around the outer wall of the lifting rod. A blocking block (57) is installed at the bottom of the lifting rod, and the blocking block (57) penetrates through the exhaust pipe (53).

6. The surface defoaming device for a prestressed concrete square pile according to claim 5, characterized in that, An air inlet cylinder (6) is installed on the inner bottom wall of the fixed cylinder (40). An extrusion rod (61) is installed through the top of the air inlet cylinder (6). An impact plate (62) is installed on the top of the extrusion rod (61). A second spring (63) is installed around the outer wall of the extrusion rod (61). A sealing plate (64) is installed at the bottom of the extrusion rod (61), and the sealing plate (64) is slidably connected inside the air inlet cylinder (6). Air inlet holes (65) are formed on the outer wall of the air inlet cylinder (6). An air injection pipe (66) is installed through the outer wall of the air inlet cylinder (6). A one-way valve (67) is installed on the outer wall of the air injection pipe (66). A plurality of air bags (68) are installed at the bottom of the fixing plate (2), and the air bags (68) are communicated with one end of the air injection pipe (66).

7. The surface defoaming device for a prestressed concrete square pile according to claim 1, characterized in that, The defoaming assembly (7) includes a fixed box (70) installed above the fixed frame (22). A partition plate is installed on the inner wall of the fixed box (70). The partition plate divides the fixed box (70) into two chambers, a left chamber and a right chamber. An air extraction pump (71) is installed on the inner top wall of the left chamber. A moisture absorption box (72) is installed at the input end of the air extraction pump (71). Moisture absorption cotton is filled inside the moisture absorption box (72). A three-way pipe is installed at the bottom of the moisture absorption box (72). The top end of the three-way pipe is communicated with the moisture absorption box (72). The right end of the three-way pipe is connected with an air extraction pipe (74), and the air extraction pipe (74) is inclined at 45 degrees at the interface of the right end of the three-way pipe. A collection box (73) is installed at the left end of the three-way pipe.

8. A surface defoaming device for a prestressed concrete square pile according to claim 7, characterized in that, An air outlet pipe (8) is installed through the inner wall of the right chamber, and the air outlet pipe (8) is communicated with the output end of the air extraction pump (71). A protective shell (81) is installed on the outer wall of the air outlet pipe (8). A rotating rod (82) is installed through the bottom of the protective shell (81). A fan blade (83) is installed on the outer wall of the rotating rod (82). A plurality of impact balls (84) are connected to the outer wall of the rotating rod (82) through a cable. A vibrating rod (85) is installed on the inner bottom wall of the right chamber, and the bottom of the vibrating rod (85) extends below the fixing plate (2).

9. The surface defoaming device for a prestressed concrete square pile according to claim 1, characterized in that, A film laminator (9) is installed on the top of the fixed plate (2). A second motor (91) is installed on the inner wall of the film laminator (9). The output end of the second motor (91) is installed with a film (1006) around it. A third spring (92) is installed at the bottom of the fixed plate (2). An extrusion wheel (93) is installed at the bottom of the third spring (92). A storage cavity (94) is installed on the inner bottom wall of the film laminator (9). The storage cavity (94) is filled with an adhesive inside, and the film (1006) extends out of the bottom of the fixed plate (2) through the inside of the storage cavity (94).

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