A concrete pouring device for steel plate concrete column construction

Abstract

The application relates to the technical field of concrete pouring equipment, and discloses a concrete pouring device for steel plate concrete column construction, which comprises a guide pipe, the guide pipe comprises a straight pipe and a hopper, the hopper is fixedly arranged at the top of the straight pipe, a supporting seat is fixedly sleeved at the top of the guide pipe, a switching mechanism is arranged at the bottom of the inner side of the guide pipe, and the switching mechanism comprises a moving plate. The switching mechanism is actively controlled by the adjusting mechanism to open and close the concrete passage, the switching mechanism can close the bottom opening of the guide pipe in the initial pouring stage, the accumulated water or mud in the steel pipe column is prevented from entering the guide pipe, concrete segregation is avoided, the guide pipe can be reused together with the whole guide pipe, the passage can be closed to retain the remaining material in the guide pipe at the end of pouring, the required pressure of the concrete in the guide pipe is ensured when the concrete at the top of the pile body is replaced, and the remaining material is prevented from being poured out to cause over-pouring.

Description

Technical Field

[0001] This application relates to the field of concrete pouring equipment technology, and in particular to a concrete pouring device for the construction of steel plate concrete columns. Background Technology

[0002] A concrete pouring device is a construction device that uses a duct to transport concrete into the interior of a column, utilizing the concrete's own weight and jacking to achieve dense filling of the enclosed space. It is commonly used for pouring concrete for composite columns such as steel plate concrete columns, steel pipe concrete columns, and steel-concrete composite columns. Existing pouring devices typically include a duct, a hopper, and a lifting connection frame. The duct consists of a straight pipe and a hopper fixed at its top. The connection frame has lifting rings at the top, which are connected to the slings of the lifting equipment, allowing the entire duct to be raised and lowered.

[0003] The conduit is usually equipped with a water-stop plug or baffle mechanism. For example, the water-stop plug is used to isolate the water or mud inside the steel pipe column during the initial pouring stage to prevent concrete segregation. During operation, the conduit is hoisted to the top of the steel pipe column to be poured and lowered to the predetermined depth. Concrete is injected into the conduit through the hopper. The concrete accumulates above the water-stop mechanism. Then, the water-stop mechanism is opened or destroyed by the weight of the concrete or external impact force, allowing the concrete to pass through the conduit and enter the bottom of the column. After the initial pouring is completed, the bottom of the conduit is buried in concrete. Thereafter, the conduit is continuously poured and gradually raised as the concrete surface rises until the pouring is completed.

[0004] However, in the use of existing concrete pouring devices for pile construction, fragments or residues of the water-stopping mechanism may fall into the concrete after it is opened, affecting the structural quality. Even with the use of a floating water-stopping plug, there are still cases of failure to float. Each pile needs to be individually fabricated and installed, which increases construction costs and procedures. Furthermore, after pouring, the remaining material in the tremie pipe is poured out, which can easily lead to over-pouring. Controlling the pouring by reducing the amount of concrete poured at the end of the pouring process can easily result in insufficient concrete pressure in the tremie pipe at this stage, making it difficult to lift and replace the concrete in the pile body, thus affecting the quality of pile pouring. Summary of the Invention

[0005] This application proposes a concrete pouring device for steel plate concrete column construction, which has the advantages of actively switching the opening and closing of the concrete channel and intercepting the remaining material at the end of the pouring process. It solves the problems of the water-stop plug of the existing concrete pouring device used for pile construction easily failing to be recovered and the overflow of the remaining concrete in the guide pipe used to compensate for pressure, which leads to over-pouring.

[0006] To achieve the above objectives, this application adopts the following technical solution: a concrete pouring device for steel plate concrete column construction, comprising a guide pipe, the guide pipe comprising a straight pipe and a hopper, the hopper being fixedly disposed on the top of the straight pipe, a support seat being fixedly sleeved on the top of the guide pipe, a switching mechanism being disposed at the bottom of the inner side of the guide pipe, the switching mechanism comprising a moving plate, the moving plate having a plurality of connecting grooves, the bottom of the moving plate being rotatably connected in a coaxial manner to an adjusting plate for closing the connecting grooves, the adjusting plate having a plurality of adjusting grooves; It also includes an adjustment mechanism, which includes a drive shaft and is fixedly connected to an adjustment plate. The adjustment mechanism drives the adjustment plate to rotate relative to the moving plate by rotating the drive shaft. In the initial pouring stage, the position of the adjustment groove is offset from the position of the connecting groove to close the bottom opening of the conduit. During continuous pouring, the adjustment mechanism drives the adjustment plate to rotate so that the adjustment groove rotates to the position corresponding to the connecting groove. After the pouring operation is completed, the adjustment mechanism drives the adjustment plate to rotate and reset to prevent concrete from pouring out from the bottom opening of the conduit.

[0007] Furthermore, the outer diameter of the movable plate is adapted to the inner diameter of the straight section of the conduit, the connecting groove is fan-shaped and several connecting grooves are arranged in a ring at equal intervals, the number of adjusting grooves is the same as the number of connecting grooves, and the shape of the adjusting grooves corresponds to the shape of the connecting grooves.

[0008] Furthermore, the adjustment mechanism also includes a connecting seat, which is fixedly disposed on the top of the support seat. A rotating block is rotatably engaged on one side of the bottom of the connecting seat. A gear is fixedly connected to the top of the rotating block in a coaxial manner. A rack is slidably disposed on one side of the connecting seat, and an electric push rod is fixedly disposed on one side of the connecting seat.

[0009] The rack is driven to move horizontally by an electric push rod, which in turn drives the gear to rotate circumferentially. The gear adjusts the rotation angle of the adjustment plate through the transmission shaft, thereby switching the opening and closing states of the switching mechanism.

[0010] Furthermore, the output end of the electric push rod is fixedly connected to the rack, the axis of the transmission shaft is collinear with the axis of the adjusting plate, the top shaft of the transmission shaft is set as a key shaft, and the transmission shaft is connected to the gear transmission via a key.

[0011] Furthermore, a guide plate is fixedly connected to the top of the movable plate, and two guide rods are fixedly connected to the top of the guide plate. A contact block is fixedly installed near the bottom of one of the two guide rods. A contact sensor is fixedly installed at the bottom of the connecting seat at a position corresponding to the contact block horizontally. A protrusion is fixedly installed at the bottom of the inner side of the conduit.

[0012] When the switching mechanism rises to the top of the conduit, the contact block touches the contact sensor to generate a positioning signal. The control system determines that the switching mechanism has been raised to the preset position. The bottom protrusion is used to limit the lowering limit of the switching mechanism to prevent the switching mechanism from coming off the bottom of the conduit.

[0013] Furthermore, the movable plate is slidably sleeved with the conduit, the movable plate is rotatably snapped with the drive shaft, the outer diameters of the guide plate and the adjusting plate are both adapted to the inner diameter of the straight section of the conduit, the guide rod is slidably sleeved with the connecting seat, and the rotating block and the gear are both slidably sleeved with the drive shaft.

[0014] The switching mechanism slides axially along the inner wall of the guide tube. The guide plate, moving plate and adjusting plate work together to form a continuous scraping surface to remove residual concrete adhering to the inner wall of the guide tube.

[0015] Furthermore, a connecting block is hinged to the top of the guide plate, and the adjustment mechanism also includes a winch with a connecting rope wound around it. One end of the connecting rope is fixedly connected to the connecting block. A guide frame is fixedly connected to one side of the top of the support base. Two second guide wheels are rotatably arranged on the top of the guide frame, and a first guide wheel is rotatably arranged on one side of the connecting base.

[0016] The winch pulls the connecting block through the guide wheel via the connecting rope, which drives the switching mechanism to rise along the inner wall of the guide tube. After the switching mechanism is closed, the winch releases the connecting rope, and the switching mechanism slides down along the inner wall of the guide tube under its own weight and the action of the counterweight, pushing the remaining concrete in the guide tube below the switching mechanism downward.

[0017] Furthermore, the connecting rope is connected to both the first guide wheel and the second guide wheel in a transmission manner, and a collar is fixedly installed near the bottom of the outer side of the conduit, the outer diameter of which is adapted to the outer diameter of the conduit.

[0018] Furthermore, a counterweight is fixedly mounted on the shaft of the drive shaft, and the outer diameter of the counterweight is not greater than the outer diameter of the drive shaft.

[0019] Furthermore, a connecting frame is fixedly connected to the top of the support base near the center point, and a lifting ring is fixedly installed on the top of the connecting frame.

[0020] The beneficial effects of this invention are as follows: This application provides a concrete pouring device for steel plate concrete column construction. An adjusting mechanism drives an adjusting plate to rotate relative to a moving plate, achieving alignment or misalignment between the connecting groove and the adjusting groove. This actively controls the opening and closing of the concrete channel by a switching mechanism. During the initial pouring stage, the adjusting groove and the connecting groove are misaligned. The switching mechanism closes the bottom opening of the guide pipe to prevent water or mud from entering the steel pipe column, ensuring the first batch of concrete accumulates in a closed environment and preventing segregation. The switching mechanism can rise and fall with the guide pipe and be reused along with it after pouring. Simultaneously, at the end of the pouring stage, the adjusting mechanism drives the adjusting plate to reset and close the channel, intercepting excess material in the guide pipe. This ensures the required pressure of the concrete in the guide pipe during the replacement operation of the concrete at the top of the pile, thus guaranteeing pouring quality while preventing excess material from being poured out and causing over-pouring. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 This is a cross-sectional view of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of a portion of the structure at the catheter of the present invention; Figure 4 This is a schematic cross-sectional view of a portion of the structure at the connector of the present invention; Figure 5 For the present invention Figure 3 Enlarged view of the structure at point A in the image; Figure 6 This is a schematic cross-sectional view of a portion of the gear structure of the present invention; Figure 7 This is a schematic diagram of the arrangement of the connecting ropes in this invention; Figure 8 This is a cross-sectional schematic diagram of a portion of the switching mechanism of the present invention.

[0022] In the diagram: 1. Conduit; 2. Support base; 3. Connecting base; 4. Rotating block; 5. Gear; 6. Rack; 7. Switching mechanism; 701. Guide plate; 702. Moving plate; 703. Adjusting plate; 704. Connecting groove; 705. Adjusting groove; 8. Drive shaft; 9. Electric push rod; 10. Connecting frame; 11. Connecting block; 12. Connecting rope; 13. Guide wheel No. 1; 14. Guide wheel No. 2; 15. Guide frame; 16. Guide rod; 17. Winch; 18. Contact block; 19. Contact sensor. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1, as Figures 1-7 A concrete pouring device for steel plate concrete column construction includes a guide pipe 1, which comprises a straight pipe and a hopper. The hopper is fixedly installed at the top of the straight pipe, and the axis of the hopper is collinear with the axis of the straight pipe. A support seat 2 is fixedly sleeved at the top of the guide pipe 1. A connecting frame 10 is fixedly connected to the top of the support seat 2 near its midpoint. A lifting ring is fixedly installed at the top of the connecting frame 10, and the lifting ring is connected to the sling of the boom in a lifting device. The lifting height of the connecting frame 10 is adjusted by the lifting device. A connecting seat 3 is fixedly connected to the top of the support seat 2. (See reference...) Figure 4 A rotating block 4 is rotatably engaged on one side of the bottom of the connecting seat 3. As the connecting seat 3 moves up and down, the rotating block 4 moves and can rotate circumferentially relative to the connecting seat 3. A gear 5 is fixedly connected to the top of the rotating block 4 in a coaxial manner. A rack 6 is slidably arranged on one side inside the connecting seat 3. The rack 6 can move horizontally relative to the connecting seat 3. An electric push rod 9 is fixedly arranged on one side inside the connecting seat 3. The output end of the electric push rod 9 is fixedly connected to the rack 6.

[0025] A switching mechanism 7 is provided at the bottom of the inner side of the conduit 1. Specifically, the switching mechanism 7 includes a movable plate 702. The bottom of the movable plate 702 is rotatably connected to an adjusting plate 703 in a coaxial manner. The outer diameter of the movable plate 702 is adapted to the inner diameter of the straight pipe section of the conduit 1. The plate body of the movable plate 702 has several connecting grooves 704. The connecting grooves 704 are fan-shaped and arranged in a ring at equal intervals. The bottom surface of the movable plate 702 is in contact with the top surface of the adjusting plate 703. The adjusting plate 703 is used to close the connecting grooves 704. The plate body of the adjusting plate 703 has several adjusting grooves 705. The number and shape of the adjusting grooves 705 are adapted to the number and shape of the connecting grooves 704. When the position of the adjusting groove 705 corresponds to the position of the connecting groove 704, the connecting groove 704 cooperates with the adjusting groove 705 to connect the cavities of the conduit 1 located at the top and bottom of the switching mechanism 7 for concrete to pass through.

[0026] A drive shaft 8 is fixedly connected to the center of the top of the adjusting plate 703. The axis of the drive shaft 8 is collinear with the axis of the adjusting plate 703. The moving plate 702 is movably sleeved with the drive shaft 8. The top shaft of the drive shaft 8 is set as a flat key shaft. The drive shaft 8 is connected to the gear 5 through the flat key, so that the drive shaft 8 moves axially relative to the gear 5 while the gear 5 can drive the drive shaft 8 to rotate circumferentially. There is a space between the connecting seat 3 and the hopper of the guide pipe 1 for the concrete pumping pipe to pump concrete into the hopper.

[0027] During operation, the pumping pipe opening is located between the connecting seat 3 and the hopper wall. The lifting equipment moves the connecting frame 10 via slings, and the pumping pipe moves synchronously. The connecting frame 10 moves the support seat 2, and the support seat 2 moves the guide pipe 1, thereby lifting the entire device above the steel pipe column to be poured. The boom is adjusted, and the guide pipe 1 is slowly lowered so that its straight section extends into the steel pipe column until the bottom of the guide pipe 1 reaches the preset depth, i.e., the rated distance between the bottom of the guide pipe 1 and the bottom of the column. In the initial pouring stage, the relative position of the moving plate 702 and the guide pipe 1 remains unchanged, the electric push rod 9 is in the retracted position, and the position of the rack 6 is locked. At this time, the adjusting groove 705 and the connecting groove 704 are in a staggered state, and the position of the connecting groove 704 corresponds to the top end face of the adjusting plate 703, closing the connecting groove 704. The switching mechanism 7 as a whole forms a closed bottom baffle, preventing water or mud from entering the guide pipe 1 from the steel pipe column.

[0028] Next, concrete is injected into the hopper of the guide pipe 1 through the pumping pipe. The concrete accumulates above the moving plate 702. The switching mechanism 7 restricts the concrete in the guide pipe 1 from directly contacting the water or mud in the steel pipe column to avoid concrete segregation. When the concrete injection volume reaches the set value, the control system controls the electric push rod 9 to start. Its output end extends and pushes the rack 6 to move horizontally relative to the connecting seat 3. The rack 6 drives the gear 5 to rotate circumferentially, so that the gear 5 drives the transmission shaft 8 to rotate through the flat key. The rotation of the transmission shaft 8 drives the adjusting plate 703 to rotate circumferentially relative to the moving plate 702 until the adjusting plate 703 rotates to the rated angle, so that the adjusting groove 705 corresponds to the connecting groove 704. The cavities of the guide pipe 1 at the top and bottom of the switching mechanism 7 are connected through the channel formed by the connecting groove 704 and the adjusting groove 705. The first batch of concrete falls through the channel and enters the bottom of the steel pipe column under its own weight, squeezing the water at the bottom upward and burying the bottom of the guide pipe 1 below the concrete surface.

[0029] Next, keeping the output end position of the electric push rod 9 unchanged, the adjusting groove 705 and the connecting groove 704 continue to correspond, and the switching mechanism 7 remains open. Concrete is continuously injected through the hopper and the guide pipe 1, passing through the channel of the switching mechanism 7 and entering the bottom of the steel pipe column. The subsequently injected concrete lifts the already poured concrete from the bottom up, realizing the bottom-up lifting and replacement to avoid segregation. As the concrete surface inside the steel pipe column continues to rise, the lifting equipment slowly lifts the connecting frame 10 through the slings to make the guide pipe 1 rise synchronously. The switching mechanism 7 rises synchronously with the guide pipe 1. During this process, the bottom of the guide pipe 1 is always buried within the set depth below the concrete surface, for example, 2 to 6 meters. Preferably, the construction personnel measure the actual height of the concrete surface inside the steel pipe column at regular intervals and adjust the lifting speed of the lifting equipment accordingly to ensure that the burial depth of the guide pipe is always within a safe range.

[0030] Once the concrete pouring volume inside the steel pipe column reaches the rated volume, the control system activates the electric push rod 9, which in turn drives the adjusting plate 703 to rotate and reset. Specifically, the adjusting plate 703 rotates until the adjusting groove 705 and the connecting groove 704 are misaligned. During this process, the adjusting groove 705 rotates, and the tangential thrust on the coarse aggregate, encased in the slurry, is sufficient to push it along the edge of the groove or redistribute it with the slurry, similar to a gate valve cutting off the particulate fluid. This continues until the adjusting plate 703 closes the connecting groove 704, at which point the switching mechanism 7 switches to the closed state, completing the pouring process. The remaining material in the conduit 1 above the switching mechanism 7 is intercepted and no longer falls. After the switching mechanism 7 is closed, the conduit 1 can be lifted out of the steel pipe column by the lifting equipment. While the switching mechanism 7 can be recycled and reused along with the conduit 1, the remaining material intercepted in the conduit 1 can be recycled to avoid overfilling. The lifting equipment lifts the conduit 1 out of the steel pipe column. The switching mechanism 7 remains closed to prevent residual concrete from dripping and polluting the construction environment. When it is necessary to pour out the remaining material, the device is moved to the recycling station, the switching mechanism is opened, and the remaining concrete in the conduit 1 is poured out.

[0031] There is a waste of the remaining concrete in the guide pipe 1, and the recycling operation increases the amount of construction work. Even if the remaining concrete is used for the pouring of the next concrete pile, it is still necessary to recycle this part of the concrete to avoid affecting the pouring quality when the construction time span is large.

[0032] Example 2, as Figures 1-8Based on Embodiment 1, the movable plate 702 is slidably sleeved with the conduit 1, and the movable plate 702 is rotatably engaged with the drive shaft 8. While the drive shaft 8 drives the movable plate 702 to move axially, the drive shaft 8 can also rotate circumferentially relative to the movable plate 702. A guide plate 701 is fixedly connected to the top of the movable plate 702. The outer diameters of the guide plate 701 and the adjusting plate 703 are adapted to the inner diameter of the straight section of the conduit 1. The guide plate 701, movable plate 702, and adjusting plate 703 are also used to scrape away residual concrete from the straight section of the conduit 1. Two guide rods 16 are fixedly connected to the top of the guide plate 701. The axis of the drive shaft 8 is arranged symmetrically. The guide rod 16 is slidably sleeved with the connecting seat 3. A contact block 18 is fixedly installed near the bottom of one of the guide rods 16. A contact sensor 19, which is electrically connected to the controller, is fixedly installed at the bottom of the connecting seat 3 at a position corresponding to the contact block 18. When the switching mechanism 7 moves to the top position of the straight pipe section of the conduit 1 and the contact block 18 contacts the contact sensor 19, the controller determines that the switching mechanism 7 has risen to the correct position. A protrusion is fixedly installed at the bottom of the inner side of the conduit 1 to prevent the switching mechanism 7 from disengaging from the bottom of the conduit 1. The rotating block 4 and the gear 5 are both slidably sleeved with the drive shaft 8.

[0033] A connecting block 11 is hinged to the top of the guide plate 701, including a winch 17. A connecting rope 12 is wound around the winch 17. One end of the connecting rope 12 is fixedly connected to the connecting block 11. A guide frame 15 is fixedly connected to one side of the top of the support base 2. Two second guide wheels 14 are rotatably arranged on the top of the guide frame 15. A first guide wheel 13 is rotatably arranged on one side of the connecting base 3. The connecting rope 12 is connected to both the first guide wheel 13 and the second guide wheel 14. Preferably, a collar for observing the height of the guide tube 1 is fixedly arranged near the bottom on the outer side of the guide tube 1. The outer diameter of the collar is adapted to the outer diameter of the guide tube 1. A counterweight is fixedly arranged on the shaft of the drive shaft 8. The outer diameter of the counterweight is not greater than the outer diameter of the drive shaft 8.

[0034] During operation, the entire device is hoisted to the pouring position by connecting the hoisting equipment to the lifting ring at the top of the connecting frame 10 via the hoisting sling. Ground construction personnel adjust the position and posture of the guide tube 1. In the initial pouring stage, the winch 17 releases the connecting rope 12, causing the switching mechanism 7 to drive the transmission shaft 8 to descend. The adjusting plate 703 rests on the protrusion, and the connecting rope 12 is in a relaxed state. The early and middle pouring operations are carried out in accordance with the method of Example 1.

[0035] As the pouring progresses, the distance between the winch 17 and the first guide wheel 13 increases during the ascent of the guide duct 1. When the concrete surface inside the steel pipe column is detected to be close to the design elevation, the controller controls the rise of the guide duct 1 to the corresponding height based on the amount of concrete added. On-site construction personnel manually verify the controller's judgment by observing the actual position of the outer collar of the guide duct 1 relative to the top of the steel pipe column. If necessary, the lifting speed of the guide duct 1 is manually fine-tuned through the control panel of the hoisting equipment. At this time, the hoisting equipment pauses lifting and stops conveying concrete to the guide duct 1. The winch 17 winds up the connecting rope 12, which drives the guide plate 701 to rise, thereby driving the drive shaft 8 and the switching mechanism 7 to rise until the contact block 18 contacts the contact sensor 19. At this time, the switching mechanism 7 is located near the top of the guide duct 1. During this process, the winch 17 winds up the connecting rope between the second guide wheel 14 and the winch 17. The part of the connecting rope 12 that is immersed in or adhered to with concrete does not enter the drum of the winch 17.

[0036] The electric push rod 9 is activated, causing the switching mechanism 7 to switch to the closed state. At this time, the switching mechanism 7 is located above the concrete surface. The small amount of residual material above the switching mechanism 7 in the conduit 1 is separated from the concrete below the switching mechanism in the conduit 1 by the closed switching mechanism 7. Then, the winch 17 releases the connecting rope and slowly lifts the conduit 1. Under the action of gravity, the switching mechanism 7 slides downward along the conduit 1, applying downward pushing pressure to the remaining concrete below the switching mechanism 7 in the conduit 1, pushing all the residual material out from the bottom of the conduit 1. While ensuring that the bottom of the conduit 1 is at a certain depth above the concrete surface, this compensates for the pressure required to discharge the remaining concrete in the conduit 1, ensuring the quality of concrete pouring while reducing concrete residue in the conduit 1.

[0037] If the construction interval is long, causing the concrete to initially set or adhere to the inner wall of the conduit 1, a cleaning operation is required. The electric push rod 9 switches the switching mechanism 7 to the closed state, and then instructs the winch 17 to drive the switching mechanism 7 to slide downward along the inner wall of the conduit 1 in the closed state. The guide plate 701 and the adjusting plate 703 in the closed state scrape off the concrete on the inner wall of the conduit 1. When the switching mechanism 7 descends to the bottom of the conduit 1, the winch 17 reverses and pulls it up to reset until the contact sensor 19 triggers the judgment that the rise is in place. The switching mechanism 7 is controlled to perform at least one complete reciprocating motion of descending and rising in the closed state to ensure that the residual concrete on the inner wall of the conduit 1 is fully removed. Then, the device is cleaned by spraying clean water. The concrete in the conduit 1 is scraped off and collected by the switching mechanism 7, which reduces the amount of water required to clean the inner wall of the conduit 1 and improves the cleaning quality. After the cleaning operation in the conduit 1 is completed, the conduit 1 can be put into use again.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A concrete pouring device for steel plate concrete column construction, comprising a conduit (1), wherein the conduit (1) includes a straight pipe and a hopper, the hopper being fixedly disposed at the top of the straight pipe, characterized in that, The top of the conduit (1) is fixedly sleeved with a support seat (2), and a switching mechanism (7) is provided at the bottom of the inner side of the conduit (1). The switching mechanism (7) includes a moving plate (702), the plate body of the moving plate (702) is provided with a plurality of connecting grooves (704), and the bottom of the moving plate (702) is rotatably connected with an adjusting plate (703) for closing the connecting grooves (704) in a coaxial manner. The plate body of the adjusting plate (703) is provided with a plurality of adjusting grooves (705). It also includes an adjustment mechanism, which includes a drive shaft (8) and an adjustment plate (703) fixedly connected. The adjustment mechanism drives the adjustment plate (703) to rotate relative to the moving plate (702) through the drive shaft (8). In the initial pouring stage, the position of the adjustment groove (705) is offset from the position of the connecting groove (704) to close the bottom opening of the conduit (1). During continuous pouring, the adjustment mechanism drives the adjustment plate (703) to rotate, so that the adjustment groove (705) rotates to the position corresponding to the connecting groove (704). After the pouring operation is completed, the adjustment mechanism drives the adjustment plate (703) to rotate and reset to limit the concrete from being poured out from the bottom opening of the conduit (1).

2. The concrete pouring device for steel plate concrete column construction according to claim 1, characterized in that, The outer diameter of the movable plate (702) is adapted to the inner diameter of the straight pipe section of the conduit (1). The connecting groove (704) is fan-shaped and several connecting grooves (704) are arranged in a ring at equal intervals. The number of adjusting grooves (705) is the same as the number of connecting grooves (704), and the shape of the adjusting groove (705) corresponds to the shape of the connecting groove (704).

3. The concrete pouring device for steel plate concrete column construction according to claim 1, characterized in that, The adjustment mechanism also includes a connecting seat (3), which is fixedly installed on the top of the support seat (2). A rotating block (4) is rotatably engaged on one side of the bottom of the connecting seat (3). A gear (5) is fixedly connected to the top of the rotating block (4) in a coaxial manner. A rack (6) is slidably installed on one side of the connecting seat (3). An electric push rod (9) is fixedly installed on one side of the connecting seat (3).

4. The concrete pouring device for steel plate concrete column construction according to claim 3, characterized in that, The output end of the electric push rod (9) is fixedly connected to the rack (6), the axis of the drive shaft (8) is collinear with the axis of the adjusting plate (703), the top shaft of the drive shaft (8) is set as a flat key shaft, and the drive shaft (8) is connected to the gear (5) through the flat key.

5. A concrete pouring device for constructing steel plate concrete columns according to claim 3, characterized in that, The top of the movable plate (702) is fixedly connected to a guide plate (701), and the top of the guide plate (701) is fixedly connected to two guide rods (16). One of the guide rods (16) is fixedly provided with a contact block (18) near the bottom. The bottom of the connecting seat (3) is fixedly provided with a contact sensor (19) at a position corresponding to the contact block (18) horizontally. The bottom of the inner side of the conduit (1) is fixedly provided with a protrusion.

6. A concrete pouring device for constructing steel plate concrete columns according to claim 5, characterized in that, The movable plate (702) is slidably sleeved with the conduit (1), the movable plate (702) is rotatably snapped with the drive shaft (8), the outer diameter of the guide plate (701) and the adjusting plate (703) are both adapted to the inner diameter of the straight pipe section of the conduit (1), the guide rod (16) is slidably sleeved with the connecting seat (3), and the rotating block (4) and the gear (5) are both slidably sleeved with the drive shaft (8).

7. A concrete pouring device for constructing steel plate concrete columns according to claim 5, characterized in that, The top of the guide plate (701) is hinged with a connecting block (11). The adjustment mechanism also includes a winch (17). The winch (17) is wound with a connecting rope (12). One end of the connecting rope (12) is fixedly connected to the connecting block (11). A guide frame (15) is fixedly connected to one side of the top of the support seat (2). Two second guide wheels (14) are rotatably arranged on the top of the guide frame (15). A first guide wheel (13) is rotatably arranged on one side of the connecting seat (3).

8. A concrete pouring device for constructing steel plate concrete columns according to claim 7, characterized in that, The connecting rope (12) is connected to both the first guide wheel (13) and the second guide wheel (14) in a transmission connection. A collar is fixedly installed on the outer side of the conduit (1) near the bottom, and the outer diameter of the collar is adapted to the outer diameter of the conduit (1).

9. A concrete pouring device for constructing steel plate concrete columns according to claim 7, characterized in that, The shaft of the drive shaft (8) is fixedly provided with a counterweight block, the outer diameter of which is not greater than the outer diameter of the drive shaft (8).

10. A concrete pouring device for constructing steel plate concrete columns according to claim 1, characterized in that, A connecting frame (10) is fixedly connected to the top of the support base (2) near the midpoint, and a lifting ring is fixedly installed on the top of the connecting frame (10).

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