Cast-in-place concrete drainage ditch integrated formwork pouring device and pouring method thereof

Abstract

The application discloses a cast-in-situ concrete drainage ditch integrated formwork pouring device, which comprises a feeding device, a receiving and distributing device and a chute formwork device; the feeding device is used for conveying materials into the receiving and distributing device; the receiving and distributing device comprises a distributing frame, a spiral distributing device, a distributing table, a sliding plate and an L-shaped sliding rod; the number of the chute formwork device is not less than one, and the chute formwork devices are sequentially connected along the longitudinal direction; each chute formwork device comprises two formwork assembly components which are symmetrically arranged left and right; each formwork assembly component comprises two longitudinal plate frames, and a formwork groove for pouring concrete is formed between the two longitudinal plate frames; the L-shaped sliding rod is fixedly connected with a sliding device at the bottom; the problems that the existing hopper device is not easy to move and the concrete unloading speed is too fast to splash or separate are solved; the mutual fastening of the concrete pouring section formwork and the moving part is realized, the concrete formwork explosion is better avoided, and the discharging speed and the discharging amount are controlled to reduce the separation.

Description

Technical Field

[0001] This invention belongs to the field of formwork casting device construction, specifically relating to an integrated formwork casting device for cast-in-place concrete drainage ditches and its casting method. Background Technology

[0002] In highway and municipal engineering projects, concrete drainage ditches are typically required. Currently, the main method for constructing drainage ditches is cast-in-place, meaning one side wall is poured first, followed by the other. However, this method is inefficient, and when the concrete on both sides cannot be poured simultaneously, uneven stress can occur at the connection between the formwork, potentially leading to formwork displacement.

[0003] To speed up the pouring of concrete drainage ditches, more and more professionals are beginning to try pouring concrete from both sides simultaneously. However, existing methods still suffer from problems such as poor structural stability, complex construction, and concrete splashing.

[0004] Therefore, there is a need to develop a device that is easy to operate, disassemble and transport, prevents concrete splashing, prevents formwork displacement or rupture, has a reasonable and simple structure, and can simultaneously pour concrete on both sides of the drainage ditch. Summary of the Invention

[0005] The present invention aims to solve the problems of low construction efficiency, poor structural stability, complex construction, easy displacement or rupture of formwork, and concrete splashing in the pouring of concrete drainage ditches in the prior art.

[0006] In view of the above-mentioned defects or improvement needs of the existing technology, the present invention specifically relates to an integrated formwork casting device for cast-in-place concrete drainage ditches, including a feeding device, a material feeding and distributing device, and a symmetrically arranged chute template device. The feeding device is used to transport materials to the receiving and distributing device, and its lower end is open and mounted on the inlet of the receiving and distributing device. The feeding and distributing device includes a distributing frame (preferably rectangular), a spiral feeder, a distributing platform, a sliding plate, and a sliding rod. The distributing frame is a hollow structure with an open inlet at its upper end. The spiral feeder is located directly below the inlet and is a rod-shaped spiral distributing structure that can rotate. The distributing platform is fixedly located below the spiral feeder. There are two sliding plates, which are respectively embedded in the left and right sides of the distributing frame and can slide horizontally. Two discharge ports with adjustable opening sizes are formed between the sliding plates and the distributing platform. The sliding rods are arranged upside down on the lower ends of both sides of the distributing frame, and there are no fewer than two sliding rods on each side of the distributing frame. The upper end of the sliding rods provides a horizontal sliding surface for supporting the sliding plates. The number of chute template devices is not less than one, and they are connected in sequence along the longitudinal direction. Each chute template device includes two drainage ditch templates arranged symmetrically on the left and right. Each drainage ditch template includes two longitudinal plates. A template groove for pouring concrete is formed between the two longitudinal plates. The top of the concrete pouring template groove is a discharge port. A chute is provided at the bottom of the longitudinal plates. A sliding device is fixedly connected to the bottom of the sliding rod. The sliding device is embedded in the chute and can move longitudinally back and forth along the chute.

[0007] Furthermore, the feeding device includes a hopper, a fixing rod, and bolts; wherein the hopper is made of iron, the fixing rod is made of square stainless steel, and the hopper and the fixing rod are fixedly connected; the hopper can be set to different sizes according to construction needs to meet the requirements of pouring Requirements for pouring volume, pouring speed, and drainage ditch dimensions; bolt holes are provided on the free end of the fixing rod, which is connected to the retraction device via bolts. For connection, the inner wall of the hopper should be made of a smooth material and be treated to reduce material adhesion and accumulation, and promote flow. For example, polyethylene plastic or a special coating should be used.

[0008] Furthermore, a reinforcing rod is provided between the sliding rods, and a hand lever is fixedly connected to it. After the concrete of a section is poured, the operator pulls the hand lever to move the device forward.

[0009] Furthermore, the spiral distributor includes a spiral distribution component, bearings, a belt, and a belt ring. The spiral distribution component includes spiral blades and a spiral rod fixedly connected together. The spiral rod passes through the side wall of the distribution frame and has bearings at both ends that allow it to rotate. The spiral rod has a groove of the same width and thickness as the belt on one side to prevent the belt from slipping. An iron belt ring is connected to the other side of the belt and is fixedly connected to the distribution frame. The belt ring is equipped with a hand crank. By cranking the hand crank, the operator can rotate the belt, thereby rotating the spiral distributor and causing the concrete to fall.

[0010] Furthermore, the sliding device includes a universal wheel axle and a universal wheel, and the lower end of the sliding rod is fixedly connected to the universal wheel through the universal wheel axle; the universal wheel is embedded in the sliding groove and can move in the sliding groove.

[0011] Furthermore, the outer ends of the sliding plates are respectively provided with hand-pulling iron rings for construction workers to hold and pull.

[0012] Furthermore, a limiting element is provided at the inner end of the sliding plate (to prevent the sliding plate from being completely pulled out of the dispensing frame).

[0013] Furthermore, the longitudinal plate frame is provided with a strength-reinforcing structure; the strength-reinforcing structure includes longitudinal stiffening ribs, transverse stiffening ribs and diagonal stiffening ribs of the template provided on the outer side of the longitudinal plate frame.

[0014] Furthermore, the transverse stiffening rib is provided with a protruding template connecting bolt wedge, and the template connecting bolt wedge has a template connecting bolt hole. When the sliding template device is connected, the template connecting bolt is passed through the connecting bolt hole for fixation. The central longitudinal and transverse template stiffening ribs are equipped with raised template tie bolt reinforcement blocks. The reinforcement blocks have tie bolt holes. After the tie bolts pass through the four templates, they are locked on both sides of the outermost template using tie bolt locking blocks. Diagonal braces and counter-braces are provided between the two inner templates to ensure the stability of the template. The sliding rod groove is set along the template through groove and has a certain space to ensure that the universal wheel axle and universal wheel can support the entire moving part and the smoothness of the sliding part.

[0015] As another aspect of the present invention, a casting method for an integrated formwork casting device for cast-in-place concrete drainage ditches is also disclosed, comprising the following steps: Step 1: Device in place Surveyors laid out the formwork positions for the drainage ditch according to the drawings, and then erected the drainage ditch formwork. After the drainage ditch formwork was erected and passed the inspection, the sliding rod of the extension and retraction device was extended so that the casters were aligned and moved into the sliding rod groove, and the casters were locked to ensure its load-bearing capacity and prevent displacement. After the receiving and discharging device is in place, the selected model of hopper device is installed on the receiving and discharging device with bolts; Step 2: Concrete pouring Once the tanker truck is in place and aligned with the hopper opening, unloading begins. After the concrete enters the receiving and discharging device, when the amount of concrete reaches the required pouring volume, the operator pulls the hand-operated iron ring, the sliding plate moves to both sides, and the hand crank is turned so that the auger pushes the concrete from the opening into the formwork. Step 3: Move part After the concrete pouring of a section is completed, the swivel casters are released from their locks, and the workers on both sides of the drainage ditch pull the levers at the same time to move the moving parts of the device. Step 4: Transfer of the moving parts After all the concrete pouring in this area is completed, the equipment will be cleaned to ensure its usability. The bolts between the hopper device and the receiving / discharging device are loosened, and the sliding plate is reset before the material is transferred.

[0016] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects: (1) The cast-in-place concrete drainage ditch integrated formwork casting device of the present invention adopts the method of setting the track groove of universal wheels on the top or outer wall of the formwork, which solves the problem that the existing hopper device is not easy to move or the moving device is complicated. (2) The cast-in-place concrete drainage ditch integrated formwork casting device of the present invention uses a hand-pulled sliding plate to control the opening width of the receiving and releasing device and a hand-cranked spiral distributor to control the concrete flow rate, thereby controlling the concrete discharge amount and discharge speed and solving the problem of concrete splashing or segregation due to excessive discharge speed. (3) The cast-in-place concrete drainage ditch integrated formwork casting device of the present invention achieves mutual fastening between the formwork and the moving part in the concrete casting section by setting a sliding rod at the bottom of the material distribution frame, which can better avoid concrete bursting. In addition, the hand-pulled sliding plate and the spiral material distributor work together to effectively control the discharge speed and discharge volume to reduce segregation; (4) The cast-in-place concrete drainage ditch integrated formwork casting device of the present invention, with the combined action of the hand-operated sliding plate and the spiral material distributor, can effectively control the discharge speed and discharge volume to reduce segregation; the sliding plate and the telescopic sliding rod can be retracted during transportation, and after the upper hopper device is disassembled, the entire receiving and discharging device can be transported in a regular rectangle. In particular, the device can also perform single-side wall casting, and can be extended to the field of cast-in-place curbstone. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isometric structure of a preferred embodiment of the present invention; Figure 2 This is a top view of a preferred embodiment of the present invention; Figure 3 This is a side view of a preferred embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the core hopper in a preferred embodiment of the present invention; Figure 5 This is an axial view of the template after assembly, according to a preferred embodiment of the present invention. In the diagram: 1—Hopper; 2—Fixing rod; 3—Distribution frame; 4—Steel plate sliding groove; 5—Hand-operated iron ring; 6—Sliding plate; 7—Sliding rod; 8—Sliding rod groove; 9—Drainage ditch template; 10—Drainage ditch bedding layer; 11—Bolt; 12—Distribution platform; 13—Sliding plate limiting component; 14—Template transverse stiffening rib; 15—Template longitudinal stiffening rib; 16—Template diagonal stiffening rib; 17—Template tie bolt reinforcement block; 18—Tie bolt; 19—Tie bolt locking block; 20—Formwork connection bolt hole; 21—Support rod; 22—Diagonal support rod; 23—Formwork connection bolt wedge; 24—Hand lever; 25—Spiral material distributor; 26—Belt; 27—Belt ring; 28—Hand crank; 29—Bearing; 30—Wheel axle; 31—Wheel; 32—Slide bar reinforcing rod; 33—Formwork connection bolt; 34—Discharge port; 35—Longitudinal frame; 36—Concrete formwork trough. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0019] This embodiment relates to an integrated formwork and casting device for cast-in-place concrete drainage ditches, characterized by convenient construction, simple and reasonable structure, easy turnover, and multiple mobility options, as well as its casting method. The device includes a hopper device, a receiving and discharging device, and a formwork with a chute. The hopper device and the receiving and discharging device together constitute the moving part of the device, and the formwork with the chute... This is the fixed part of the device.

[0020] (1) Hopper device Please refer to Figure 1 The hopper device includes a hopper 1, four fixing rods 2, and bolts 11. The hopper 1 is made of iron, and the fixing rods 2 are made of square stainless steel. The hopper 1 and the fixing rods 2 are welded together. The hopper 1 can be set to different sizes according to construction needs to meet the requirements of pouring volume, pouring speed, and drainage ditch size. Bolt holes are provided on the free ends of the fixing rods, which are connected to the receiving and discharging device via bolts 11.

[0021] (2) Retraction and extension device Please refer to Figures 2 to 4 The receiving and discharging device includes a retractable sliding rod 7 with casters, a spiral distributor, a distribution frame 3, two steel plates 6 with limiters, a hand-operated iron ring 5, and a steel plate platform 12. The distribution frame 3 has a certain thickness and height, with two bolt holes on each of its left and right top surfaces for connection to the hopper device. The steel plate platform 12 is welded to the middle of the distribution frame 3. Sliding grooves 4 are pre-drilled on the left and right side walls of the distribution frame 3. The two steel plates 6 with limiters are inserted into the sliding grooves 4, and hand-operated iron rings 5 ​​are welded to their free ends for easy pulling by operators. When concrete is poured, it falls from the hopper onto the steel plate platform 12. When the concrete volume reaches the required level, the operators simultaneously pull apart the two sliding plates 6, and the concrete is pushed into the formwork by the spiral distributor.

[0022] The spiral distributor 25 includes a spiral distributor component, bearings 29, a belt 26, a belt ring 27, and a hand crank 28. The spiral distributor component includes spiral blades and a spiral rod welded together. The spiral rod passes through the side wall of the distribution frame 3 and is equipped with bearings 29 at both ends to ensure its rotation. The spiral rod has a groove of the same width and thickness as the belt 26 on one side to prevent the belt 26 from slipping. The other side of the belt 26 is connected to an iron belt ring 27, which is welded to the distribution frame 3. The belt ring is equipped with a hand crank 28. The operator can rotate the belt 26 by turning the hand crank 28, thereby rotating the spiral distributor 25 and causing the concrete to fall.

[0023] The bottom of each side wall of the material distribution frame 3 is welded with a sliding rod 7 with universal wheels. The universal wheels 31 are connected to the sliding rod 7 through the universal wheel axle 30. The universal wheels 30 are placed in the groove 8 of the template 9 with the groove. The sliding rod 7 on the same side wall is provided with a sliding rod reinforcing rod 32 in the middle, and a hand lever 24 is welded on it. When the concrete of a section is poured, the operator pulls the hand lever 24 to move the device forward.

[0024] (3) Template with groove Please refer to Figures 4 to 5 The template wall is 3cm thick, with 3cm thick transverse stiffening ribs 14 and longitudinal stiffening ribs 15 on the outside, and 1cm thick diagonal stiffening ribs 16 on the template. At the upper and middle transverse stiffening ribs at both ends, there are template connecting bolt wedges 23 with a protrusion of 2cm. The wedges 23 have template connecting bolt holes 20. When connecting the template, the template connecting bolts 33 are passed through the connecting bolt holes 20 for fixation. At the intersection of the longitudinal and transverse stiffening ribs in the middle, there are protruding template tie bolt reinforcement blocks 17. The reinforcement blocks 17 have tie bolt holes. The tie bolts 18 pass through four templates and are locked on both sides of the outermost template using tie bolt locking blocks 19. There are diagonal braces 22 and counter-braces 21 between the two inner templates to ensure the stability of the template. The sliding rod groove 8 is set along the template through groove and has a certain space to ensure that the universal wheel axle 30 and universal wheel 31 can support the entire moving part and the smoothness of the sliding of the moving part.

[0025] 3.2 Workflow The specific usage process of the integrated formwork and casting device for cast-in-place concrete drainage ditches is as follows: (1) Making a hopper device Based on the actual needs of on-site construction, various models of traditional hoppers are manufactured, and fixing rods of different lengths are welded to them according to the size of the hoppers. The manufacturer is required to pre-drill bolt holes on the fixing rod 2 to match bolt 11.

[0026] (2) Make the launching and retracting device The material distribution frame 3, the spiral feeder 25, and the steel plate platform 12 are manufactured and connected in the factory. Note that the material distribution frame 3 should be pre-installed with... Leave bolt holes and a certain roughness in the groove 4; the limiting part 13 is welded to the steel plate 6 according to the requirements of the figure, and the free end of the steel plate 6 passes through the groove 4, and then the hand-pulled iron ring 5 is welded according to the requirements of the figure.

[0027] Produce the telescopic slide rod 7 with universal wheels and the belt ring of the spiral feeder 25 according to the requirements shown in the figure. After the main structure of the take-up and release device is assembled, weld the upper part of the slide rod 7 to the bottom of the distribution frame according to the position shown in the figure, and weld the belt ring 27 to the side wall of the distribution frame.

[0028] (3) Make a template with a groove. Produce the template and matching connectors or fasteners according to the requirements shown in the diagram, and be sure to reserve the bolt holes.

[0029] (4) The device is in place Surveyors meticulously laid out the formwork positions for the drainage ditch according to the drawings, and then erected the formwork 9. After the formwork was erected and passed inspection, the sliding rod 7 of the retraction device was extended so that the casters 31 were aligned and moved into the sliding rod groove 8, and the casters 31 were locked to ensure their load-bearing capacity and prevent displacement.

[0030] After the receiving and discharging device is in place, the selected model of hopper 1 device is installed on the receiving and discharging device using bolts 11.

[0031] (5) Concrete pouring Once the concrete truck is in position and aligned with the hopper opening 1, unloading begins. After the concrete enters the receiving and discharging device, once the concrete volume reaches a certain level, the operator pulls the hand-operated iron ring 5, moving the sliding plate 6 to both sides, and cranks the hand crank 28, causing the auger distributor 25 to push the concrete from the opening into the formwork.

[0032] (6) Displacement of the moving part After the concrete pouring of a section is completed, the locking of the caster wheel 31 is released, and the workers on both sides of the drainage ditch pull the handle 24 at the same time to move the moving part of the device.

[0033] (7) Transfer of moving parts After all the concrete pouring in the area is completed, clean the device to ensure the number of times the device can be turned over. Loosen the bolts 11 between the hopper device and the receiving device, and reset the sliding plate 6 before transferring it.

[0034] Furthermore, the combined action of the hand-operated sliding plate 6 and the auger distributor effectively controls the discharge speed and quantity to reduce segregation. The sliding plate 6 and the telescopic slide bar 7 can be retracted during transport, allowing the entire receiving and discharging device to be transported in a neat rectangle after the upper hopper device is disassembled. Notably, this device can also be used for single-side wall casting, making it applicable to the field of cast-in-place curbstone.

[0035] The beneficial effects of this invention are: the device is reasonably designed, quick to install and dismantle, and convenient to transport; it can simultaneously pour concrete on both sides of the drainage ditch, and the template 9 with a sliding groove 8 moves smoothly via a retractable sliding rod 7 with universal wheels. Furthermore, by setting the sliding rod 7 at the bottom of the material distribution frame 3, the template and the moving part are mutually secured during the concrete pouring section, which better prevents concrete from exploding.

[0036] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cast-in-place concrete drainage ditch integrated formwork and casting device, characterized in that, Includes feeding device, feeding and receiving components Material handling equipment and symmetrically arranged chute templates; The feeding device is used to transport materials to the receiving and distributing device, and its lower end is open and mounted on the inlet of the receiving and distributing device. The feeding and distributing device includes a distributing frame (3), a spiral feeder (25), a distributing platform (12), a sliding plate (6), and a sliding rod (7). The distributing frame (3) is a hollow structure with an open inlet at its upper end. The spiral feeder (25) is located directly below the inlet and is a rod-shaped spiral distributing structure that can rotate. The distributing platform (12) is fixedly located below the spiral feeder. There are two sliding plates (6), which are embedded in the left and right sides of the distributing frame and can slide horizontally. Two adjustable discharge ports (34) are formed between the sliding plates (6) and the distributing platform (12). The sliding rods (7) are arranged upside down on the lower ends of both sides of the distributing frame (3), and there are no fewer than two sliding rods (7) on each side of the distributing frame. The upper end of the sliding rod is for sliding. Plate (6) provides a horizontal sliding surface for support; the spiral distributor (25) includes a spiral distributor component, a bearing (29), a belt (26), a belt ring (27), and a hand crank (28). The spiral distributor component includes spiral blades and a spiral rod welded together. The spiral rod passes through the side wall of the distribution frame (3) and is provided with bearings (29) at both ends to ensure that it can rotate. The spiral rod is provided with a groove of the same width and thickness as the belt (26) on one side of the belt (26) to prevent the belt (26) from slipping. The other side of the belt (26) is connected to an iron belt ring (27), which is welded to the distribution frame (3). The belt ring is provided with a hand crank (28). The operator can rotate the belt (26) by cranking the hand crank (28), thereby realizing the rotation of the spiral distributor (25) and the falling of concrete. The number of the chute template device is not less than one, and they are connected in sequence along the longitudinal direction. Each chute template device includes two drainage ditch templates (9) arranged symmetrically on the left and right. Each drainage ditch template (9) includes two longitudinal plate frames (35). A template groove (36) for pouring concrete is formed between the two longitudinal plate frames. The upper part of the concrete pouring template groove (36) is a discharge port (34). A chute (8) is provided at the bottom of the longitudinal plate frame. A sliding device is fixedly connected to the bottom of the sliding rod (7). The sliding device is embedded in the chute (8) and can move longitudinally back and forth along the chute (8).

2. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 1, characterized in that, The feeding device includes a hopper (1), four fixing rods (2) and bolts (11); wherein the hopper (1) is made of iron, the fixing rods (2) are made of square stainless steel, and the hopper (1) and the fixing rods (2) are fixedly connected.

3. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 1, characterized in that, A sliding rod reinforcing rod is provided between the sliding rods (7), and a hand lever is fixedly connected to it.

4. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 3, characterized in that, The sliding device includes a universal wheel axle (30) and a universal wheel (31). The lower end of the slide rod (7) is fixedly connected to the universal wheel (31) through the universal wheel axle (30). The universal wheel (31) is embedded in the slide groove (8) and can move in the slide groove (8).

5. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 1, characterized in that, The outer ends of the sliding plate (6) are respectively provided with hand-pulled iron rings (5) for easy gripping and pulling by construction personnel.

6. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 1, characterized in that, A limiting element (13) is provided at the inner end of the sliding plate (6).

7. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 4, characterized in that, The longitudinal plate frame (35) is provided with a strength-strengthening structure; the strength-strengthening structure includes a longitudinal stiffening rib (14), a transverse stiffening rib (15), and an oblique stiffening rib (16) of the template, which are provided on the outer side of the longitudinal plate frame (35).

8. The integrated formwork and casting device for cast-in-place concrete drainage ditches according to claim 7, characterized in that, The template transverse stiffening rib (15) is provided with a protruding template connecting bolt wedge (23), and the template connecting bolt wedge (23) has a template connecting bolt hole (20). When the sliding template device is connected, the template connecting bolt (33) is passed through the connecting bolt hole (20) for fixing. The central longitudinal and transverse template stiffening rib intersection is provided with a raised template tie bolt reinforcement block (17). The reinforcement block (17) has tie bolt holes. The tie bolt (18) passes through the four templates and is locked on both sides of the outermost template by tie bolt locking blocks (19). Diagonal bracing rods (22) and counter bracing rods (21) are provided between the two inner templates.

9. The casting method of the integrated formwork casting device for cast-in-place concrete drainage ditches according to claim 4, characterized in that, Includes the following steps: Step 1: Device in place The surveyors laid out the formwork position of the drainage ditch according to the drawings, and then erected the drainage ditch formwork (9); after the drainage ditch formwork was erected and accepted, the slide bar (7) of the extension device was extended so that the caster wheel (31) was aligned and moved into the slide groove (8), and the caster wheel (31) was locked to ensure its load-bearing capacity and prevent displacement. After the receiving and discharging device is in place, the selected model of hopper (1) device is installed on the receiving and discharging device by bolts (11); Step 2: Concrete pouring Once the tanker truck is in place and aligned with the hopper (1) opening, it begins unloading. After the concrete enters the receiving and discharging device, when the amount of concrete reaches the required level for pouring, the operator pulls the hand-operated iron ring (5), the sliding plate (6) moves to both sides, and the hand crank (28) is turned so that the spiral distributor (25) pushes the concrete from the opening into the formwork. Step 3: Move part After the concrete pouring of a section is completed, the lock of the caster wheel (31) is released, and the workers on the left and right sides of the drainage ditch pull the handle (24) at the same time to move the moving part of the device. Step 4: Transfer of the moving parts After all the concrete is poured, clean the device to ensure the number of times the device can be turned over. Loosen the bolts (11) between the hopper device and the receiving device, and reset the sliding plate (6) before transporting it.

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