A surface defoaming device for prestressed concrete square piles

Abstract

The invention relates to the technical field of surface defoaming of concrete square piles, and specifically to a surface defoaming device for prestressed concrete square piles, comprising a square pile mold, the square pile mold is filled with concrete, guide rails are symmetrically arranged on both sides of the square pile mold, clamping arms are slidably connected to the guide rails, a steam box and a defoaming box are sequentially arranged between the two clamping arms along the forward direction of the clamping arms, a steam component is arranged in the steam box, defoaming rollers are rotatably connected to the bottom ends of both sides of the steam box, and trowel plates are arranged on the front and back sides of the steam box; a first oscillation plate is arranged at the bottom end of the defoaming box, and a plurality of reset components are symmetrically arranged at the top end of the first oscillation plate; a plurality of buffer components are evenly arranged at the bottom ends of both sides of the limit plate in the same direction as the guide rail, a second oscillation plate is arranged at the bottom end of the buffer component, and an oscillation component is arranged in the defoaming box; a plurality of drainage holes are symmetrically and evenly opened on the inner walls of both sides of the square pile mold, and water tanks are also opened on both sides of the square pile mold.

Description

Technical Field

[0001] The invention relates to the technical field of surface defoaming of concrete square piles, in particular to surface defoaming equipment for prestressed concrete square piles. Background Art

[0002] Precast concrete square piles, also known as precast concrete square piles, are prefabricated piles made of concrete material. This type of pile is made by adding concrete material into a mold and then hardening it. Precast concrete square piles have very high load-bearing capacity and compressive strength, making them a very strong and durable building structure material.

[0003] According to the surface defoaming device of prestressed concrete square piles described in announcement number CN207077596U, it includes a mobile base, one end of the mobile base is provided with two sets of parallel support rods, the front sides of the two sets of support rods are provided with moving tracks along their length direction, and the two sets of moving tracks are provided with sliding blocks, a steam ejection device is fixedly connected between the two sets of sliding blocks, a steam generating device is provided on the mobile base, a winding column is fixedly provided on the steam generating device, a steam delivery hose is wound around the winding column, one end of the steam delivery hose is connected to the steam generating device, and the other end is connected to the steam ejection device. The above utility model uses high-temperature steam to rupture bubbles, so as to achieve the purpose of eliminating bubbles on the surface of concrete square piles, and improves the efficiency of eliminating bubbles.

[0004] In actual use, steam is used to heat up the square piles, and the bubbles are burst by the principle of thermal expansion and contraction. However, the burst bubbles will form a depression, and the surface of the square piles is not smooth. Secondly, the equipment limits the square piles to be placed vertically for use with the equipment, and vertical placement will affect the molding of the square piles. If placed horizontally, a large amount of steam will liquefy, which will increase the difficulty of curing the square piles and even destroy the square piles. In addition, due to heat conduction, part of the heat will be transmitted to the bottom of the square pile surface, causing the concrete below to expand and contract to produce more bubbles.

[0005] Based on this, the invention discloses a surface defoaming device for prestressed concrete square piles. Summary of the invention

[0006] In order to solve the problems raised in the background technology, the purpose of the present invention is to provide a surface defoaming device for prestressed concrete square piles, which directly acts on the concrete surface through steam to heat it, accelerate the evaporation of water in the concrete, help the bubbles to rise quickly and burst, and cooperate with the fine needle on the defoaming roller to effectively pierce the bubbles near the surface of the concrete, and the trowel plate follows the defoaming roller, which can immediately smooth out the depression caused by the bursting of bubbles and keep the surface of the concrete flat; secondly, the torsion spring in the connecting assembly enables the trowel plate to always keep in contact with the concrete surface and adapt to the changes of the concrete surface; in addition, the second oscillation plate contacts the guide rail to generate vibration, and the overall vibration of the square pile mold is achieved through the second oscillation plate, further improving the bubble elimination effect; at the same time, excess liquid water on the concrete surface can flow into the sink through the drainage hole, reducing the influence of liquid water on the square pile; finally, the purpose of solving the problem of depression formed after bubble bursting, and the problem of a large amount of steam liquefying affecting the solidification of the square pile, and the purpose of steam heating the square pile to generate more bubbles inside the square pile is achieved.

[0007] To achieve the above object, a surface defoaming device for prestressed concrete square piles comprises a square pile mold, wherein the square pile mold is filled with concrete;

[0008] Wherein, guide rails are symmetrically arranged on both sides of the square pile mold, and clamping arms are slidably connected to the guide rails. A steam box and a defoaming box are sequentially arranged between the two clamping arms along the forward direction of the clamping arms. A steam component is arranged in the steam box to provide steam to heat up the concrete. The bottom ends of the front and rear sides of the steam box along the forward direction of the clamping arms are rotatably connected to defoaming rollers to puncture bubbles near the surface of the concrete. Screed plates are arranged on the front and rear sides of the steam box along the forward direction of the clamping arms to smooth out the pits left after the bubbles burst, and the screed plates on the steam box are arranged at the rear side of the forward direction of the defoaming rollers.

[0009] A first oscillation plate is provided at the bottom of the defoaming box to impact the upper surface of the concrete, and a plurality of reset components are symmetrically provided at the top of the first oscillation plate. The first oscillation plate is slidably connected to the defoaming box through the reset components;

[0010] A limit plate is arranged on the first oscillation plate, and a plurality of buffer components are evenly arranged at the bottom ends of both sides of the limit plate in the same direction as the guide rail, and a second oscillation plate is arranged at the bottom end of the buffer component, and the second oscillation plate is connected to the limit plate through the buffer component to impact and oscillate the square pile mold, and an oscillation component is arranged in the defoaming box to cyclically drive the first oscillation plate to oscillate up and down, and a trowel plate is arranged on the rear side of the defoaming box along the forward direction of the clamping arm to do the finishing troweling work on the upper surface of the concrete;

[0011] A plurality of drainage holes are symmetrically and evenly provided on the inner walls of both sides of the square pile mold. Water grooves for drainage are also provided in both sides of the square pile mold. The drainage holes are connected with the water grooves, and the drainage holes are provided near the upper surface of the concrete.

[0012] As a further improvement of the present technical solution, the guide rail is in an L-shaped structure, the clamping arm matches the guide rail, and a driving wheel is provided inside the clamping arm, and the driving wheel is in contact with the upper surface of the guide rail to drive the clamping arm to move forward along the guide rail.

[0013] As a further improvement of the present technical solution, the steam assembly includes a steam mechanism fixedly mounted on the steam box and a transmission pipe connected thereto, the transmission pipe is arranged at the bottom end of the steam box, and a plurality of steam nozzles are evenly arranged on the transmission pipe, the steam mechanism is used to generate steam from water, and a plurality of the steam nozzles are arranged adjacent to the upper surface of the concrete.

[0014] As a further improvement of the technical solution, a number of fine needles are evenly arranged on the surface of the defoaming roller to puncture bubbles, and after the number of fine needles are inserted into the concrete, the surface of the defoaming roller fits the surface of the concrete, and a baffle is fixedly connected to one side of the bottom end of the steam box directly above the defoaming roller, and the baffle has an arc-shaped structure, and its two sides extend beyond the fine needles on the defoaming roller.

[0015] Preferably, a connecting assembly is provided on the trowel plate, and the trowel plate is respectively connected to the steam box and the defoaming box through the connecting assembly, the trowel plate on the steam box fits with the baffle, a baffle rod is fixedly provided on the outer wall of the defoaming box just below the trowel plate, the trowel plate on the defoaming box fits with the baffle rod, and the bottom end of the trowel plate is a smooth structure that fits with the horizontal plane;

[0016] The smooth structures at the bottom ends of the trowel plates located on the steam box and the defoaming box are in contact with the upper surface of the concrete.

[0017] As a further improvement of the technical solution, the connecting assembly includes a first connecting plate, a connecting rod is fixedly provided on the first connecting plate, a second connecting plate is rotatably connected to the connecting rod, a torsion spring is provided on the connecting rod between the second connecting plate and the first connecting plate, one end of the torsion spring is fixedly connected to the connecting rod, and the other end is fixedly connected to the second connecting plate;

[0018] The second connecting plate is fixedly connected to the trowel plate, the first connecting plate is fixedly connected to the steam box and the defoaming box respectively, and the torsion spring always has a tendency to cause the trowel plate to rotate in a direction that fits the upper surface of the concrete.

[0019] Preferably, the oscillation component includes a driving motor fixedly mounted in the defoaming box, and a transmission shaft is provided at the output end of the driving motor, one end of the transmission shaft is fixedly connected to the output end of the driving motor, and the other end is rotatably connected to the inner wall of the defoaming box, and a crank is fixedly connected to the transmission shaft just above the geometric center of the first oscillation plate, and a connecting rod is provided on the crank, one end of the connecting rod is rotatably connected to the crank, and the other end is rotatably connected to an oscillation block, and the oscillation block is slidably connected in a slide cylinder, and the slide cylinder is fixedly connected to the bottom end of the defoaming box, and the upper and lower ends of the slide cylinder are through-opening structures.

[0020] As a further improvement of the present technical solution, the reset assembly includes a first outer cylinder fixedly connected to the inner wall of the top end of the defoaming box, a first sliding rod is slidably connected in the first outer cylinder, and the first sliding rod is slidably connected to the bottom wall of the defoaming box, the bottom end of the first sliding rod is fixedly connected to the top end of the first oscillation plate, a first spring is arranged between the inner wall of the top end of the first outer cylinder and the top end of the first sliding rod, one end of the first spring is fixedly connected to the inner wall of the top end of the first outer cylinder, and the other end of the first spring is fixedly connected to the top end of the first sliding rod;

[0021] A sliding cavity adapted to the limit plate is provided in the defoaming box, the limit plate is larger than the first oscillating plate, the first spring always has a tendency to make the top of the first oscillating plate fit with the top of the sliding cavity at the bottom of the defoaming box, and in an initial state, the top of the first oscillating plate fits with the top of the sliding cavity at the bottom of the defoaming box;

[0022] A plurality of fine needles are evenly arranged at the bottom end of the first oscillation plate.

[0023] Preferably, the buffer assembly includes a second outer cylinder with a top end fixedly connected to the bottom end of the limiting plate, a sliding groove is symmetrically opened in the second outer cylinder, a sliding block is slidably connected in the sliding groove, the sliding block is fixedly connected to the second sliding rod, the second sliding rod is slidably connected to the second outer cylinder through the sliding block, a second spring is arranged between the inner wall of the top end of the second outer cylinder and the top end of the second sliding rod, one end of the second spring is fixedly connected to the inner wall of the top end of the second outer cylinder, and the other end is fixedly connected to the top end of the second sliding rod, and the bottom end of the second sliding rod is fixedly connected to the top end of the second oscillation plate.

[0024] As a further improvement of the technical solution, the crank drives the oscillation block to slide up and down in the slide cylinder through the connecting rod, which matches the stroke of the first oscillation plate from the initial state to the bottom end of the first oscillation plate being in contact with the upper surface of the concrete;

[0025] When the bottom end of the first oscillating plate is in contact with the upper surface of the concrete, the second oscillating plate is in contact with the upper surface of the guide rail;

[0026] The initial state of the second oscillation plate fits with the clamping arm, and the stroke of the second oscillation plate from the initial state to hitting the top of the guide rail, plus the stroke of the slider sliding in the slide groove, is adapted to the stroke of the bottom end of the first oscillation plate from the initial state to fitting with the upper surface of the concrete.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the surface defoaming equipment of the prestressed concrete square pile, a steam component and a defoaming roller are arranged in the steam box, and the steam is used to heat the concrete. At the same time, the fine needles on the defoaming roller effectively pierce the surface bubbles, which is conducive to quickly eliminating the bubbles on the concrete surface, avoiding the depressions formed after the bubbles burst, and improving the surface flatness of the square pile; secondly, a trowel plate is arranged on the steam box and the defoaming box, and a baffle is arranged in front of the trowel plate of the steam box.

[0029] After the defoaming roller works, the trowel plate promptly smoothes out the pits left by the burst bubbles. At the same time, the baffle prevents the concrete on the fine needle from being thrown into the steam box, which makes it easier to keep the surface of the concrete flat, reduces the difficulty of subsequent processing, and improves the quality of the finished product. Moreover, the torsion spring design in the connecting component enables the trowel plate to always fit the concrete surface. This automatic adjustment mechanism can ensure the continuity and effectiveness of the leveling work no matter how the concrete surface changes, further improving the surface flatness.

[0030] 2. In the surface defoaming equipment of the prestressed concrete square pile, the oscillation component in the defoaming box is used to drive the first oscillation plate to oscillate up and down, and the buffer component ensures that the second oscillation plate plays a buffering role when hitting the guide rail, which can not only effectively eliminate the bubbles inside the concrete, but also compact the concrete through overall vibration, thereby enhancing the density and strength of the concrete.

[0031] 3. In the surface defoaming equipment of the prestressed concrete square pile, the drainage holes and water troughs on the inner walls of both sides of the square pile mold are designed to effectively guide the liquid water accumulated on the concrete surface to be discharged, thereby reducing the adverse effects of steam liquefaction on concrete curing, which is beneficial to keeping the concrete surface dry and improving the curing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a partial structural sectional view of the square pile mold of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the defoaming box of the present invention;

[0035] Figure 4 It is a structural cross-sectional view of the steam box of the present invention;

[0036] Figure 5 It is a structural schematic diagram of a screed board of the present invention;

[0037] Figure 6 for Figure 5 A magnified view of the structure at center A;

[0038] Figure 7 It is a structural cross-sectional view of the defoaming box of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the oscillating component of the present invention;

[0040] Fig. 9 It is a schematic diagram of the internal structure of the defoaming box of the present invention;

[0041] Fig.10 It is a structural cross-sectional view of the buffer assembly of the present invention;

[0042] Fig.11 It is a structural front view of the defoaming box of the present invention;

[0043] Fig.12 It is a front view of the cross-sectional structure of the defoaming box of the present invention;

[0044] Fig.13 for Fig.12 A magnified view of the structure at point B.

[0045] The meaning of each number in the figure is:

[0046] 1. Square pile mold; 2. Concrete; 3. Guide rail; 4. Sink; 5. Drain hole; 6. Clamping arm; 7. Driving wheel; 8. Steam box; 9. Steam assembly; 10. Baffle; 11. Defoaming roller; 12. Defoaming box; 13. Screw plate; 14. Connecting assembly; 15. Baffle rod; 16. Oscillation assembly; 17. Slide; 18. First oscillation plate; 19. Limiting plate; 20. Reset assembly; 21. Buffer assembly; 22. Second oscillation plate;

[0047] 91. Steam mechanism; 92. Transmission pipe; 93. Steam nozzle;

[0048] 141. first connecting plate; 142. connecting rod; 143. torsion spring; 144. second connecting plate;

[0049] 161, driving motor; 162, transmission shaft; 163, crank; 164, connecting rod; 165, oscillating block;

[0050] 201, first outer cylinder; 202, first sliding rod; 203, first spring;

[0051] 211, second outer cylinder; 212, slide groove; 213, slider; 214, second slide rod; 215, second spring. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] The present invention provides a surface defoaming device for prestressed concrete square piles, see Figure 1 As shown, it comprises a square pile mould 1 , in which concrete 2 is filled.

[0054] For details, see Figure 1-Figure 3 As shown, guide rails 3 are symmetrically arranged on both sides of the square pile mold 1, and a clamping arm 6 is slidably connected to the guide rail 3. The guide rail 3 is in an L-shaped structure, and the clamping arm 6 matches the guide rail 3. A driving wheel 7 is arranged in the clamping arm 6, and the driving wheel 7 is in contact with the upper surface of the guide rail 3 to drive the clamping arm 6 to move forward along the guide rail 3.

[0055] Further, such as Figure 1 , Figure 3 and Figure 4 As shown, a steam box 8 and a defoaming box 12 are sequentially arranged between the two clamping arms 6 along the forward direction of the clamping arms 6. A steam assembly 9 is arranged in the steam box 8 to provide steam to heat the concrete 2. The bottom ends of the steam box 8 on both sides of the front and rear sides along the forward direction of the clamping arms 6 are rotatably connected to defoaming rollers 11 to puncture bubbles near the surface of the concrete 2. The steam box 8 is provided with a trowel plate 13 on both sides of the front and rear sides along the forward direction of the clamping arms 6 to smooth out the pits left after the bubbles burst, and the trowel plate 13 on the steam box 8 is arranged at the rear side of the forward direction of the defoaming roller 11, so that the pits left by the punctured bubbles can be smoothed after the defoaming roller 11 works.

[0056] And it should be noted that Figure 4As shown in , a number of fine needles are evenly arranged on the surface of the defoaming roller 11 to puncture bubbles, and after the number of fine needles are inserted into the concrete 2, the surface of the defoaming roller 11 fits with the surface of the concrete 2, and a baffle 10 is fixedly connected to one side of the bottom end of the steam box 8, which is located directly above the defoaming roller 11, and the baffle 10 is an arc-shaped structure, and its two sides extend beyond the fine needles on the defoaming roller 11, so that the concrete 2 on the fine needles can be prevented from being thrown into the steam box 8 and affecting the steam component 9, and secondly, the trowel plate 13 can be supported to prevent the trowel plate 13 from affecting the fine needles on the surface of the defoaming roller 11 to operate;

[0057] For further information, see Figure 3 and Figure 4 As shown, a trowel plate 13 is provided on the rear side of the defoaming box 12 along the advancing direction of the clamping arm 6, and a connecting assembly 14 is provided on the trowel plate 13. The trowel plate 13 is respectively connected to the steam box 8 and the defoaming box 12 through the connecting assembly 14. The trowel plate 13 on the steam box 8 fits with the baffle 10. A baffle rod 15 is fixedly provided on the outer wall of the defoaming box 12 just below the trowel plate 13. The trowel plate 13 on the defoaming box 12 fits with the baffle rod 15. The bottom end of the trowel plate 13 is a smooth structure that fits with the horizontal plane.

[0058] Moreover, the smooth structures at the bottom ends of the trowel plates 13 located on the steam box 8 and the defoaming box 12 are in contact with the upper surface of the concrete 2;

[0059] in, Figure 6 As shown, the connecting assembly 14 includes a first connecting plate 141, a connecting rod 142 is fixedly provided on the first connecting plate 141, a second connecting plate 144 is rotatably connected to the connecting rod 142, a torsion spring 143 is provided on the connecting rod 142 between the second connecting plate 144 and the first connecting plate 141, one end of the torsion spring 143 is fixedly connected to the connecting rod 142, and the other end is fixedly connected to the second connecting plate 144;

[0060] The second connecting plate 144 is fixedly connected to the trowel plate 13, the first connecting plate 141 is respectively fixedly connected to the steam box 8 and the defoaming box 12, and the torsion spring 143 always has a tendency to cause the trowel plate 13 to rotate in the direction of fitting with the upper surface of the concrete 2; in this way, the trowel plate 13 on the steam box 8, with the support of the arc-shaped baffle plate 10, can ensure that the bottom end of the trowel plate 13 can always smooth the upper surface of the concrete 2, and the trowel plate 13 on the defoaming box 12, with the support of the baffle rod 15, can ensure that the bottom end of the trowel plate 13 on the defoaming box 12 is always in contact with the upper surface of the concrete 2, so as to finish the smoothing work of the entire bubble elimination work.

[0061] Secondly, see Figure 7A first oscillation plate 18 is provided at the bottom end of the defoaming box 12 for impacting the upper surface of the concrete 2, and a plurality of reset components 20 are symmetrically provided at the top of the first oscillation plate 18, and the first oscillation plate 18 is slidably connected to the defoaming box 12 through the reset component 20; a limit plate 19 is provided on the first oscillation plate 18, and a plurality of buffer components 21 are evenly provided at the bottom ends of both sides of the limit plate 19 in the same direction as the guide rail 3, and a second oscillation plate 22 is provided at the bottom end of the buffer component 21, and the second oscillation plate 22 is connected to the limit plate 19 through the buffer component 21, so as to impact and oscillate the square pile mold 1, and an oscillation component 16 is provided in the defoaming box 12 for cyclically driving the first oscillation plate 18 to oscillate up and down.

[0062] Among them, Figure 7 , Fig. 9 and Fig.12 As shown, the oscillation assembly 16 includes a driving motor 161 fixedly arranged in the defoaming box 12, and a transmission shaft 162 is provided at the output end of the driving motor 161, one end of the transmission shaft 162 is fixedly connected to the output end of the driving motor 161, and the other end is rotatably connected to the inner wall of the defoaming box 12, and a crank 163 is fixedly connected to the transmission shaft 162 just above the geometric center of the first oscillation plate 18, and a connecting rod 164 is provided on the crank 163, one end of the connecting rod 164 is rotatably connected to the crank 163, and the other end is rotatably connected to the oscillation block 165 The oscillation block 165 is slidably connected in the slide cylinder 17, and the slide cylinder 17 is fixedly connected to the bottom end of the defoaming box 12, and the upper and lower ends of the slide cylinder 17 are through-port structures. In this way, after the driving motor 161 rotates, the crank 163 is driven to rotate through the transmission shaft 162. It should be noted that due to its special structure, the structural characteristics of the crank 163 are prior art, and no further details are given here. The oscillation block 165 is driven by the connecting rod 164 to slide up and down in the slide cylinder 17, thereby hitting and pushing the top of the first oscillation plate 18.

[0063] Specifically, Fig. 9 As shown, the reset assembly 20 includes a first outer cylinder 201 fixedly connected to the inner wall of the top end of the defoaming box 12, a first slide bar 202 is slidably connected in the first outer cylinder 201, and the first slide bar 202 is slidably connected to the bottom wall of the defoaming box 12, the bottom end of the first slide bar 202 is fixedly connected to the top end of the first oscillation plate 18, a first spring 203 is arranged between the inner wall of the top end of the first outer cylinder 201 and the top end of the first slide bar 202, one end of the first spring 203 is fixedly connected to the inner wall of the top end of the first outer cylinder 201, and the other end of the first spring 203 is fixedly connected to the top end of the first slide bar 202;

[0064] See also Figure 7As shown, a sliding cavity adapted to the limit plate 19 is provided in the defoaming box 12, and the limit plate 19 is larger than the first oscillation plate 18. The first spring 203 always has a tendency to cause the top of the first oscillation plate 18 to fit with the top of the sliding cavity at the bottom of the defoaming box 12, and in the initial state, the top of the first oscillation plate 18 fits with the top of the sliding cavity at the bottom of the defoaming box 12; in this way, when the oscillation block 165 moves downward along the slide cylinder 17, it pushes the first oscillation plate 18 to move downward until it fits with the concrete 2, and then when the oscillation block 165 moves upward under the driving action of the connecting rod 164, the first oscillation plate 18 will be driven by the first sliding rod 202 to reset the first oscillation plate 18 under the pulling force of the first spring 203, and fit with the top of the sliding cavity at the bottom of the defoaming box 12, completing an oscillation collision.

[0065] Figure 8 It can be seen that a number of fine needles are evenly arranged at the bottom end of the first vibration plate 18. The fine needles are arranged on the first vibration plate 18 so that while the bottom end of the first vibration plate 18 is vibrating and compacting the concrete 2, the fine needles on the bottom end can puncture the bubbles near the surface of the concrete 2, thereby improving the efficiency of eliminating bubbles, and does not affect the overall vibration and compaction effect of the first vibration plate 18 on the concrete 2, because after the fine needles are sunk into the concrete 2, the bottom end of the first vibration plate 18 will still fit and collide with the upper surface of the concrete 2.

[0066] For further information, see Fig.10 and Fig.13 The buffer assembly 21 includes a second outer cylinder 211 whose top is fixedly connected to the bottom of the limiting plate 19, a slide groove 212 is symmetrically provided in the second outer cylinder 211, a slider 213 is slidably connected in the slide groove 212, the slider 213 is fixedly connected to the second slide bar 214, the second slide bar 214 is slidably connected to the second outer cylinder 211 through the slider 213, a second spring 215 is arranged between the inner wall of the top of the second outer cylinder 211 and the top of the second slide bar 214, one end of the second spring 215 is fixedly connected to the inner wall of the top of the second outer cylinder 211, and the other end is fixedly connected to the top of the second slide bar 214, the bottom end of the second slide bar 214 is fixedly connected to the top of the second oscillation plate 22 The first and second oscillation plates 22 are fixedly connected at the ends; it should be added that the buffer assembly 21 is provided because the first oscillation plate 18 needs to be slightly sunken into a part of the upper surface of the concrete 2 when it hits the upper surface of the concrete 2 to ensure the effect of the impact. At this time, the second oscillation plate 22 has actually hit the top of the guide rail 3 and fits therewith. At this time, the entire buffer assembly 21 can play a buffering role for the first oscillation plate 18 to continue to move downward, while satisfying the second oscillation plate 22 hitting the guide rail 3 to achieve the purpose of vibrating the entire square pile mold 1, so that the overall vibration of the square pile mold 1 forms an oscillation and compacting effect on the bubbles or bubble cavities inside the concrete 2.

[0067] Moreover, from Figure 7 , Fig.12 and Fig.13 It can be seen that the stroke of the crank 163 driving the oscillation block 165 to slide up and down in the slide cylinder 17 through the connecting rod 164 matches the stroke of the first oscillation plate 18 from the initial state to the bottom end of the first oscillation plate 18 being in contact with the upper surface of the concrete 2; this ensures that the crank 163 can cause the bottom end of the first oscillation plate 18 to be in contact with the upper surface of the concrete 2 in each cycle, thereby vibrating out or directly breaking the bubbles generated inside the concrete 2;

[0068] When the bottom end of the first oscillating plate 18 is in contact with the upper surface of the concrete 2, the second oscillating plate 22 is in contact with the upper surface of the guide rail 3;

[0069] The second oscillation plate 22 is initially in contact with the clamping arm 6 , and the stroke of the second oscillation plate 22 from the initial state to the top of the impact guide rail 3 , plus the stroke of the slider 213 sliding in the slide groove 212 , is adapted to the stroke of the bottom end of the first oscillation plate 18 from the initial state to contact with the upper surface of the concrete 2 .

[0070] In addition, if Figure 2 It can be seen that a number of drainage holes 5 are symmetrically and evenly provided on the inner walls on both sides of the square pile mold 1, and water grooves 4 for drainage are also provided on both sides of the square pile mold 1. The drainage holes 5 are connected to the water grooves 4, and the drainage holes 5 are provided near the upper surface of the concrete 2, so that the liquid water accumulated on the upper surface of the concrete 2 will flow into the water grooves 4 through the drainage holes 5, reducing the impact on the solidification of the concrete 2.

[0071] In addition, see Figure 4 As shown, the steam assembly 9 includes a steam mechanism 91 fixed on the steam box 8 and a transmission pipe 92 connected thereto. The transmission pipe 92 is arranged at the bottom end of the steam box 8, and a plurality of steam nozzles 93 are evenly arranged on the transmission pipe 92. The steam mechanism 91 is used to make water into steam. The plurality of steam nozzles 93 are arranged near the upper surface of the concrete 2. Being near the upper surface of the concrete 2 can make the steam more efficient in heating the concrete 2.

[0072] Working principle:

[0073] When in use, the clamping arm 6 is clamped on the guide rail 3, and then the clamping arm 6 is driven by the driving wheel 7 to move forward slowly, and its forward speed is adapted to the speed of the steam component 9. Then the steam nozzle 93 heats the concrete 2, and the bubbles rise immediately, some of which burst directly, and those that do not burst are when the clamping arm 6 drives the steam box 8 forward. The defoaming roller 11 will rotate relatively on the surface of the concrete 2, and then the fine needles on it will puncture the bubbles near the surface of the concrete 2, and then the trowel plate 13 will smooth the depressions after the bubbles burst;

[0074] While the clamping arm 6 moves forward, the driving motor 161 in the defoaming box 12 drives the oscillation block 165 to slide up and down in the slide tube 17 in a cycle, and then continuously squeezes and hits the first oscillation plate 18, causing it to move downward and hit the surface of the concrete 2, thereby achieving the effect of oscillating and bursting the bubbles in the deep layer of the concrete 2, and at the same time achieving the effect of oscillating and compacting the concrete 2, and the fine needles thereon will also cyclically puncture the bubbles near the surface of the concrete 2; then, during the descent of the first oscillation plate 18, it will also drive the second oscillation plate 22 to oscillate and hit the guide rail 3, thereby driving the entire square pile mold 1 to oscillate, thereby oscillating and compacting the concrete 2 as a whole, further improving the overall bubble elimination efficiency of the concrete 2, and ensuring the integrity and smoothness of the entire concrete 2.

[0075] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A surface defoaming device for prestressed concrete square piles, comprising a square pile mold (1), wherein the square pile mold (1) is filled with concrete (2), and characterized in that: Guide rails (3) are symmetrically arranged on both sides of the square pile mold (1), and clamping arms (6) are slidably connected to the guide rails (3). A steam box (8) and a defoaming box (12) are arranged in sequence between the two clamping arms (6) along the forward direction of the clamping arms (6). A steam component (9) is arranged in the steam box (8) for providing steam to heat the concrete (2). The bottom ends of the steam box (8) on both sides along the forward direction of the clamping arms (6) are rotatably connected to defoaming rollers (11) for puncturing bubbles near the surface of the concrete (2). The steam box (8) is provided with trowel plates (13) on both sides along the forward direction of the clamping arms (6) for smoothing pits left after the bubbles burst, and the trowel plates (13) on the steam box (8) are arranged at the rear side of the forward direction of the defoaming roller (11); A first oscillating plate (18) is arranged at the bottom end of the defoaming box (12) for striking the upper surface of the concrete (2); a plurality of reset components (20) are symmetrically arranged at the top end of the first oscillating plate (18); the first oscillating plate (18) is slidably connected to the defoaming box (12) via the reset components (20); A limit plate (19) is arranged on the first oscillation plate (18), and a plurality of buffer components (21) are evenly arranged at the bottom ends of both sides of the limit plate (19) in the same direction as the guide rail (3). A second oscillation plate (22) is arranged at the bottom end of the buffer component (21), and the second oscillation plate (22) is connected to the limit plate (19) through the buffer component (21) to impact and oscillate the square pile mold (1). An oscillation component (16) is arranged in the defoaming box (12) to cyclically drive the first oscillation plate (18) to oscillate up and down; A plurality of drainage holes (5) are symmetrically and evenly formed on the inner walls of both sides of the square pile mold (1). Water grooves (4) for drainage are also formed in both sides of the square pile mold (1). The drainage holes (5) are connected to the water grooves (4), and the drainage holes (5) are formed adjacent to the upper surface of the concrete (2).

2. The surface defoaming equipment for prestressed concrete square piles according to claim 1 is characterized in that: The guide rail (3) is of an L-shaped structure, the clamping arm (6) matches the guide rail (3), a driving wheel (7) is arranged inside the clamping arm (6), and the driving wheel (7) is in contact with the upper surface of the guide rail (3) to drive the clamping arm (6) to move forward along the guide rail (3).

3. The surface defoaming equipment for prestressed concrete square piles according to claim 1 is characterized in that: The steam assembly (9) comprises a steam mechanism (91) fixedly mounted on the steam box (8) and a delivery pipe (92) connected thereto, the delivery pipe (92) being arranged at the bottom end of the steam box (8), and a plurality of steam nozzles (93) being evenly arranged on the delivery pipe (92), the plurality of steam nozzles (93) being arranged adjacent to the upper surface of the concrete (2).

4. The surface defoaming equipment for prestressed concrete square piles according to claim 1 is characterized in that: A plurality of fine needles are evenly arranged on the surface of the defoaming roller (11) for puncturing bubbles, and after the plurality of fine needles are inserted into the concrete (2), the surface of the defoaming roller (11) is in contact with the surface of the concrete (2), and a baffle (10) is fixedly connected to one side of the bottom end of the steam box (8) just above the defoaming roller (11), and the baffle (10) is an arc-shaped structure.

5. The surface defoaming equipment for prestressed concrete square piles according to claim 4 is characterized in that: The trowel plate (13) is provided with a connecting assembly (14), and the trowel plate (13) is connected to the steam box (8) and the defoaming box (12) respectively through the connecting assembly (14); the trowel plate (13) on the steam box (8) is in contact with the baffle plate (10); a baffle rod (15) is fixedly provided on the outer wall of the defoaming box (12) directly below the trowel plate (13); the trowel plate (13) on the defoaming box (12) is in contact with the baffle rod (15); and the bottom end of the trowel plate (13) is a smooth structure in contact with a horizontal plane; The smooth structures at the bottom ends of the trowel plates (13) located on the steam box (8) and the defoaming box (12) are in contact with the upper surface of the concrete (2).

6. The surface defoaming equipment for prestressed concrete square piles according to claim 5, characterized in that: The connecting assembly (14) comprises a first connecting plate (141), a connecting rod (142) is fixedly provided on the first connecting plate (141), a second connecting plate (144) is rotatably connected to the connecting rod (142), a torsion spring (143) is provided on the connecting rod (142) between the second connecting plate (144) and the first connecting plate (141), one end of the torsion spring (143) is fixedly connected to the connecting rod (142), and the other end is fixedly connected to the second connecting plate (144); The second connecting plate (144) is fixedly connected to the trowel plate (13), the first connecting plate (141) is respectively fixedly connected to the steam box (8) and the defoaming box (12), and the torsion spring (143) always has a tendency to cause the trowel plate (13) to rotate in a direction in which it contacts the upper surface of the concrete (2).

7. The surface defoaming equipment for prestressed concrete square piles according to claim 1 is characterized in that: The oscillation component (16) comprises a driving motor (161) fixedly arranged in the defoaming box (12); a transmission shaft (162) is arranged at the output end of the driving motor (161); one end of the transmission shaft (162) is fixedly connected to the output end of the driving motor (161), and the other end is rotatably connected to the inner wall of the defoaming box (12); a crank (163) is fixedly connected to the transmission shaft (162) just above the geometric center of the first oscillation plate (18); a connecting rod (164) is arranged on the crank (163); one end of the connecting rod (164) is rotatably connected to the crank (163), and the other end is rotatably connected to an oscillation block (165); the oscillation block (165) is slidably connected in a slide cylinder (17); the slide cylinder (17) is fixedly connected to the bottom end of the defoaming box (12), and the upper and lower ends of the slide cylinder (17) are through-opening structures.

8. The surface defoaming equipment for prestressed concrete square piles according to claim 7 is characterized in that: The reset assembly (20) comprises a first outer cylinder (201) fixedly connected to the inner wall of the top end of the defoaming box (12); a first sliding rod (202) is slidably connected inside the first outer cylinder (201); the first sliding rod (202) is slidably connected to the bottom wall of the defoaming box (12); the bottom end of the first sliding rod (202) is fixedly connected to the top end of the first oscillation plate (18); a first spring (203) is provided between the inner wall of the top end of the first outer cylinder (201) and the top end of the first sliding rod (202); one end of the first spring (203) is fixedly connected to the inner wall of the top end of the first outer cylinder (201); and the other end of the first spring (203) is fixedly connected to the top end of the first sliding rod (202); The defoaming box (12) is provided with a sliding cavity adapted to the limit plate (19), the limit plate (19) is larger than the first oscillating plate (18), the first spring (203) always has a tendency to make the top of the first oscillating plate (18) fit with the top of the sliding cavity at the bottom of the defoaming box (12), and in an initial state, the top of the first oscillating plate (18) fits with the top of the sliding cavity at the bottom of the defoaming box (12); A plurality of fine needles are evenly arranged at the bottom end of the first oscillating plate (18).

9. The surface defoaming equipment for prestressed concrete square piles according to claim 8, characterized in that: The buffer assembly (21) comprises a second outer cylinder (211) whose top end is fixedly connected to the bottom end of the limit plate (19); a slide groove (212) is symmetrically provided in the second outer cylinder (211); a slider (213) is slidably connected in the slide groove (212); the slider (213) is fixedly connected to a second slide bar (214); the second slide bar (214) is slidably connected to the second outer cylinder (211) via the slider (213); a second spring (215) is provided between the inner wall of the top end of the second outer cylinder (211) and the top end of the second slide bar (214); one end of the second spring (215) is fixedly connected to the inner wall of the top end of the second outer cylinder (211); the other end is fixedly connected to the top end of the second slide bar (214); the bottom end of the second slide bar (214) is fixedly connected to the top end of the second oscillation plate (22).

10. The surface defoaming equipment for prestressed concrete square piles according to claim 9, characterized in that: The crank (163) drives the oscillating block (165) to slide up and down in the slide cylinder (17) through the connecting rod (164), and the stroke of the first oscillating plate (18) from the initial state to the bottom end of the first oscillating plate (18) being in contact with the upper surface of the concrete (2) matches; When the bottom end of the first oscillating plate (18) is in contact with the upper surface of the concrete (2), the second oscillating plate (22) is in contact with the upper surface of the guide rail (3); The second oscillation plate (22) is initially in contact with the clamping arm (6), and the travel of the second oscillation plate (22) from the initial state to the impact with the top of the guide rail (3), plus the travel of the slider (213) sliding in the slide groove (212), matches the travel of the bottom end of the first oscillation plate (18) from the initial state to the contact with the upper surface of the concrete (2).

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