Cast-in-place reinforced concrete formwork laying device and construction method

Abstract

The invention relates to the technical field of constructional engineering, in particular to a cast-in-place reinforced concrete formwork laying device and a construction method.The cast-in-place reinforced concrete formwork laying device comprises a supporting device, and a first mold and a second mold are slidably inserted into the top end of the supporting device; a positioning device is fixedly mounted at the side end of the first mold, and conduction devices are symmetrically and fixedly mounted at the two ends of the positioning device; the conduction device comprises a hexagonal rod, a storage cavity, a first spring, an extrusion frame and a positioning pin; the hexagonal rod is fixedly installed at one end of the top of the storage cavity, the first springs are symmetrically and fixedly installed at the end, close to the interior of the hexagonal rod, of the storage cavity, the extrusion frames are fixedly installed at the ends, away from the hexagonal rod, of the first springs, and the positioning pins are placed in the storage cavity at equal intervals. Through the arrangement of the supporting device, the positioning device and the conduction device, the purpose of integration of rapid butt-joint assembling and temporary positioning of the concrete column formwork is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a cast-in-place reinforced concrete formwork laying device and construction method. BACKGROUND

[0002] The reinforced concrete formwork refers to a temporary model structure for forming and pouring plastic state concrete. It determines the position, shape and size of the concrete structure, and provides support during the hardening process.

[0003] A hole reinforced concrete formwork support frame installation method disclosed in Chinese patent No. CN107489270A, characterized in that it comprises the following steps: a, making a scaffold vertical rod bearing fixed beam, b, installing the fixed beam and laying the wooden jump board, c, erecting the formwork support frame, inserting the scaffold vertical rod into the inserted rod, erecting the bidirectional horizontal rod, and completing the erection of the hole formwork support frame.

[0004] At present, the concrete column formwork on the market needs to move and butt joint two vertical column formworks from two surfaces synchronously during installation, which causes frequent alignment and adjustment during butt joint, and the precision is difficult to guarantee, which consumes a long time, so that the existing concrete column formwork cannot realize the functions of quick matching alignment assembly and temporary positioning integration during installation. SUMMARY

[0005] In view of the problems in the prior art, the present application provides a cast-in-place reinforced concrete formwork laying device and construction method.

[0006] The technical scheme adopted by the present application to solve the technical problems is: a cast-in-place reinforced concrete formwork laying device, a support device, a first mold and a second mold are slidably inserted into the top end of the support device; a positioning device is fixedly installed at the side end of the first mold, and two ends of the positioning device are symmetrically fixedly installed with a conducting device; the conducting device comprises a hexagonal rod, a receiving cavity, a first spring, a pressing frame and a positioning pin, the hexagonal rod is fixedly installed at one end of the top of the receiving cavity, the first spring is symmetrically fixedly installed at one end of the inside of the receiving cavity close to the hexagonal rod, the pressing frame is fixedly installed at one end of the first spring away from the hexagonal rod, and the positioning pins are equidistantly placed in the inside of the receiving cavity.

[0007] As a further improvement of the present invention, the positioning device includes a first rack, a first piston rod, a positioning insert rod, a reinforcing bracket, a support base, a push rod, a first displacement plate, a second piston rod, an L-shaped air cylinder, an L-shaped support base, a synchronizing rod, a second displacement plate, a side end bracket, a second rack, and a first gear; the support base is fixedly installed on the top of the reinforcing bracket, the L-shaped support base is symmetrically fixedly installed on the top of the support base, the side end bracket is symmetrically fixedly installed on the side end of the L-shaped support base near the reinforcing bracket, the L-shaped air cylinder is fixedly installed between the two L-shaped support bases, and the first piston rod is slidably inserted into... Inside the top of the L-shaped air cylinder, the second piston rod is slidably inserted into the bottom of the L-shaped air cylinder. The positioning rod is fixedly installed on the side of the first piston rod. The first rack is fixedly installed on the top of the positioning rod. The first gear is rotatably installed between the two L-shaped support bases, and the first gear is located above the positioning rod. The second displacement plate is symmetrically fixedly installed on the top of the second rack. The synchronizing rod is symmetrically fixedly installed on the side of the second displacement plate. The first displacement plate is fixedly installed on the bottom of the synchronizing rod. The pushing rod is fixedly installed on the bottom of the second displacement plate and the first displacement plate away from the support base.

[0008] As a further improvement of the present invention, the support device includes a central base plate, a limiting plate, a guide bracket, a movable guide rod, a limiting sleeve, a wheel, a support base, a connecting rope, a central base rod, a second gear, a third gear, a drive motor, a second spring, an H-shaped locking key, and a connecting vertical rod; the central base plate is fixedly installed at the top center of the support base, the guide bracket is fixedly installed on both sides of the central base plate, the movable guide rod is slidably sleeved on the outer ring of the guide bracket, the limiting plate is fixedly installed on both sides of the central base plate and is located above the guide bracket, and the drive motor is fixedly installed at the front bottom of the central base plate. The third gear is fixedly installed at the bottom center of the drive motor, the second gear is rotatably installed at the bottom front end of the support base, the central base rod is fixedly installed at the top center of the second gear, the limiting sleeve is fixedly installed at both ends of the top of the support base, the wheels are equidistantly rotatably installed at both ends of the support base, the H-shaped locking key is symmetrically slidably inserted into the top front end of the support base, the second spring is fixedly installed between the support base and one side of the H-shaped locking key, the connecting rope is fixedly installed between the central base rod and the other side of the H-shaped locking key, and the connecting vertical rod is fixedly installed between the H-shaped locking key and the movable guide rod.

[0009] As a further improvement of the present invention, the reinforcing bracket is slidably inserted into the top end of the limiting sleeve, the end of the movable guide rod near the limiting sleeve is connected to the support base, and the first rack and the second rack are respectively meshed with the first gear.

[0010] As a further improvement of the present invention, the end of the storage cavity near the hexagonal rod is connected to the side bracket, and the side end of the support frame near the second displacement plate is connected to the side end of the first mold.

[0011] As a further improvement of the present invention, the interior of the L-shaped air cylinder is hollow, and a sealed cavity is formed between the first piston rod, the L-shaped air cylinder and the second piston rod. The bottom end of the receiving cavity away from the hexagonal rod is provided with a discharge hole.

[0012] As a further improvement of the present invention, the inside of the storage cavity is provided with a storage groove, and the discharge hole is interconnected with the storage groove, and the push rod is vertically aligned with the discharge hole.

[0013] As a further improvement of the present invention, the top front end of the support base is provided with an active groove, the tooth distribution angle of the third gear is 180°, and the side end surface of the limiting plate away from the central base plate is inclined at 45°.

[0014] As a further improvement of the present invention, the support base also includes a plastic plate and a hydraulic cylinder, wherein the hydraulic cylinder is fixedly installed at both ends of the support base, and the plastic plate is fixedly installed at one end of the hydraulic cylinder.

[0015] A construction method for a cast-in-place reinforced concrete formwork laying device includes the following steps:

[0016] Step 1: Measurement and layout: Using instruments such as total station, theodolite, and level, accurately lay out the positioning axis, edge line, and elevation control line of the column on the completed foundation or floor slab, and mark them with ink lines;

[0017] Step 2, Rebar Binding: Bind the stirrups from top to bottom or bottom to top according to the design spacing. The overlapping points of the stirrup hooks should be staggered along the vertical of the column. All intersections of the rebars must be firmly bound. Tie high-strength cement blocks or plastic clips between the rebar cage and the formwork to ensure that the rebars have sufficient protective layer thickness after the concrete is poured.

[0018] Step 3, Template Erection: Move this device to align with the tied steel reinforcement cage. When the drive motor is running, it can drive the first mold and the second mold to fit together. The first mold and the second mold can be combined and installed on the steel reinforcement cage. After the first mold and the second mold are combined, the first mold and the second mold can be tightened again to prevent the first mold and the second mold from loosening.

[0019] Step 4, Concrete Pouring: Before pouring, a 5-10cm thick layer of concrete mortar should be laid to prevent honeycomb and pitting at the column base. When concrete is poured from a height, the free fall height should not exceed 2m. If it does, measures such as chutes or pipes should be used to prevent concrete segregation. Layered pouring should be adopted, with each layer not exceeding 50cm in thickness. The upper layer of concrete should be poured before the lower layer of concrete has initially set, and then vibrated until the air is expelled.

[0020] Step 5: Formwork Removal and Curing: Formwork removal should follow the order of "removing the last formwork first and the last to be removed first". The formwork should be removed in a way that ensures that the concrete surface and edges are not damaged. The specific removal time depends on the temperature and the concrete strength growth. Usually, the formwork can be removed after 1-2 days. The bottom formwork should be removed when the concrete strength reaches more than 95% of the design strength. Test blocks cured under the same conditions should be left as a reference. When removing the formwork, pry it gently and place it carefully. Do not use a sledgehammer to hit it hard to prevent damage to the formwork and concrete surface. After the concrete is poured, it should be covered and moisturized within 12 hours.

[0021] The beneficial effects of this invention are:

[0022] 1. This invention uses a positioning rod inserted into the interior of the mating crossbeam to restrict the first mold and the second mold respectively. At the same time, when the drive motor starts running, the connecting rope can pull the reinforcing bracket to move relative to each other, so that the first mold and the second mold move closer to each other until they make contact. Furthermore, the reinforcing bracket and the movable guide rod can support the support base to move in a straight line. When the third gear has completely passed the second gear, the second spring can also drive the support base to automatically reset, thus completing the automatic docking of the first mold and the second mold.

[0023] 2. In this invention, when the support frame is displaced, it can drive the second piston rod to move to contact the limiting plate, so that the second piston rod can enter the interior of the L-shaped air cylinder. The first piston rod drives the first rack and the positioning rod to move upward as a whole, releasing the first mold. At the same time, the second rack can drive the push rod to move downward through the second displacement plate and the first displacement plate, so that the positioning pin located inside the receiving cavity can be pushed into the interior of the alignment crossbeam. The positioning pin can be assembled and matched with the alignment crossbeam to complete the work of temporarily restricting the first mold and the second mold, which is convenient for the first mold and the second mold to be tightened again in the future. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a frontal perspective three-dimensional structural diagram of the main body of a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention;

[0026] Figure 2This is a combined schematic diagram of the first mold, positioning device, and transmission device in a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention;

[0027] Figure 3 This is a frontal perspective three-dimensional structural diagram of the positioning device in a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention;

[0028] Figure 4 This is a full sectional schematic diagram of the transmission device in a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention;

[0029] Figure 5 This is a partial sectional schematic diagram of the support device in a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention;

[0030] Figure 6 This is an embodiment of a cast-in-place reinforced concrete formwork laying device of the present invention. Figure 5 A magnified view of part A;

[0031] Figure 7 This is a combined schematic diagram of the first mold and the second mold in a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention;

[0032] Figure 8 This is a frontal perspective three-dimensional structural diagram of the support base in a second embodiment of a cast-in-place reinforced concrete formwork laying device according to an embodiment of the present invention.

[0033] In the diagram: 1. First mold; 2. Support device; 3. Second mold; 4. Rebar frame; 5. Positioning device; 6. Transmission device; 7. First rack; 8. First piston rod; 9. Positioning rod; 10. Reinforcing bracket; 11. Support base; 12. Push rod; 13. First displacement plate; 14. Second piston rod; 15. L-shaped air cylinder; 16. L-shaped support base; 17. Synchronizing rod; 18. Second displacement plate; 19. Side end bracket; 20. Second rack; 21. First gear; 22. Hexagonal rod; 2 3. Storage cavity; 24. First spring; 25. Extrusion frame; 26. Positioning pin; 27. Central base plate; 28. Limiting plate; 29. ​​Guide bracket; 30. Movable guide rod; 31. Limiting sleeve; 32. Wheel; 33. Support base; 34. Connecting rope; 35. Central base rod; 36. Second gear; 37. Third gear; 38. Drive motor; 39. Second spring; 40. H-shaped locking key; 41. Connecting vertical rod; 42. Matching crossbeam; 43. Aligning crossbeam; 44. Plastic plate; 45. Hydraulic cylinder. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0035] The invention will be further described below with reference to the accompanying drawings. Figure 1 , Figure 2 and Figure 4 As shown, a cast-in-place reinforced concrete formwork laying device of the present invention includes a support device 2, and a first mold 1 and a second mold 3 are slidably inserted into the top of the support device 2.

[0036] A positioning device 5 is fixedly installed on the side end of the first mold 1, and a transmission device 6 is symmetrically fixedly installed on both ends of the positioning device 5.

[0037] The transmission device 6 includes a hexagonal rod 22, a receiving cavity 23, a first spring 24, a compression frame 25, and a positioning pin 26;

[0038] The hexagonal rod 22 is fixedly installed at the top end of the storage cavity 23. The first spring 24 is symmetrically fixedly installed at the inner end of the storage cavity 23 near the hexagonal rod 22. The compression frame 25 is fixedly installed at the end of the first spring 24 away from the hexagonal rod 22. The positioning pins 26 are placed at equal intervals inside the storage cavity 23.

[0039] like Figure 3 The positioning device 5 includes a first rack 7, a first piston rod 8, a positioning insert rod 9, a reinforcing bracket 10, a support base 11, a push rod 12, a first displacement plate 13, a second piston rod 14, an L-shaped air cylinder 15, an L-shaped support base 16, a synchronizing rod 17, a second displacement plate 18, a side end bracket 19, a second rack 20, and a first gear 21.

[0040] A support frame 11 is fixedly installed at the top of a reinforced bracket 10. L-shaped support bases 16 are symmetrically fixedly installed at the top of the support frame 11. Side brackets 19 are symmetrically fixedly installed on the side ends of the L-shaped support bases 16 near the reinforced bracket 10. An L-shaped air cylinder 15 is fixedly installed between two L-shaped support bases 16. A first piston rod 8 is slidably inserted into the top end of the L-shaped air cylinder 15. A second piston rod 14 is slidably inserted into the bottom end of the L-shaped air cylinder 15. A positioning rod 9 is fixedly installed on the side end of the first piston rod 8. A first rack 7 is fixedly installed at the top of the positioning rod 9. A first gear 21 is rotatably installed on the two L-shaped supports. Between the support base 16, and with the first gear 21 located above the positioning rod 9, the second displacement plate 18 is symmetrically fixedly installed at the top of the second rack 20, the synchronizing rod 17 is symmetrically fixedly installed at the side end of the second displacement plate 18, the first displacement plate 13 is fixedly installed at the bottom end of the synchronizing rod 17, and the push rod 12 is fixedly installed at the bottom end of the second displacement plate 18 and the first displacement plate 13 away from the support base 11. A hexagonal hole is opened at the end of the second displacement plate 18 near the second rack 20, and the second displacement plate 18 is slidably sleeved on the outer ring of the hexagonal rod 22 through the hexagonal hole, so that the second displacement plate 18 can be supported to move up and down in a straight line.

[0041] like Figure 5 and Figure 6 The support device 2 includes a central base plate 27, a limiting plate 28, a guide bracket 29, a movable guide rod 30, a limiting sleeve 31, a wheel 32, a support base 33, a connecting rope 34, a central base rod 35, a second gear 36, a third gear 37, a drive motor 38, a second spring 39, an H-shaped locking key 40, and a connecting vertical rod 41.

[0042] A central base plate 27 is fixedly installed at the top center of the support base 33. A guide bracket 29 is fixedly installed on both sides of the central base plate 27. A movable guide rod 30 is slidably sleeved on the outer ring of the guide bracket 29. A limiting plate 28 is fixedly installed on both sides of the central base plate 27, and the limiting plate 28 is located above the guide bracket 29. A drive motor 38 is fixedly installed at the bottom front end of the central base plate 27. A third gear 37 is fixedly installed at the bottom center of the drive motor 38. A second gear 36 is rotatably installed at the bottom front end of the support base 33. A central base rod 35 is fixedly installed at the top center of the second gear 36. The limiting sleeve 31 is fixedly installed at both ends of the top of the support base 33. The wheels 32 are equidistantly rotatably installed at both ends of the support base 33. The H-shaped key 40 is symmetrically slidably inserted into the top front end of the support base 33. The second spring 39 is fixedly installed between the support base 33 and one side of the H-shaped key 40. The connecting rope 34 is fixedly installed between the central base rod 35 and the other side of the H-shaped key 40. The connecting vertical rod 41 is fixedly installed between the H-shaped key 40 and the movable guide rod 30. The reinforcing bracket 10 is slidably inserted into the inside of the limiting sleeve 31, so that the support base 11 can be supported to move back and forth in a straight line.

[0043] The reinforcing bracket 10 is slidably inserted into the top of the limiting sleeve 31. The end of the movable guide rod 30 near the limiting sleeve 31 is connected to the support base 11. The first rack 7 and the second rack 20 are respectively meshed with the first gear 21. The end of the receiving cavity 23 near the hexagonal rod 22 is connected to the side bracket 19. The side end of the support base 11 near the second displacement plate 18 is connected to the side end of the first mold 1. The interior of the L-shaped air cylinder 15 is hollow, and a sealed cavity is formed between the first piston rod 8, the L-shaped air cylinder 15 and the second piston rod 14. The bottom end of the receiving cavity 23 away from the hexagonal rod 22 has a discharge hole. The interior of the receiving cavity 23 has a receiving groove, and the discharge hole and the receiving groove are interconnected. The push rod 12 is vertically aligned with the discharge hole. The top front end of the support base 33 has a movable groove. The tooth distribution angle on the third gear 37 is 180°. The side surface of the limiting plate 28 away from the central base plate 27 is inclined at 45°.

[0044] A construction method for a cast-in-place reinforced concrete formwork laying device includes the following steps:

[0045] Step 1: Measurement and layout: Using instruments such as total station, theodolite, and level, accurately lay out the positioning axis, edge line, and elevation control line of the column on the completed foundation or floor slab, and mark them with ink lines;

[0046] Step 2, Rebar Binding: Bind the stirrups from top to bottom or bottom to top according to the design spacing. The overlapping points of the stirrup hooks should be staggered along the vertical of the column. All intersections of the rebars must be firmly bound. Tie high-strength cement blocks or plastic clips between the rebar cage and the formwork to ensure that the rebars have sufficient protective layer thickness after the concrete is poured.

[0047] Step 3, Template Erection: Move this device to align with the tied steel reinforcement cage. When the drive motor 38 runs, it can drive the first mold 1 and the second mold 3 to fit together. The first mold 1 and the second mold 3 can be combined and installed on the steel reinforcement cage. After the first mold 1 and the second mold 3 are combined, the first mold 1 and the second mold 3 can be tightened again to prevent the first mold 1 and the second mold 3 from loosening.

[0048] Step 4, Concrete Pouring: Before pouring, a 5-10cm thick layer of concrete mortar should be laid to prevent honeycomb and pitting at the column base. When concrete is poured from a height, the free fall height should not exceed 2m. If it does, measures such as chutes or pipes should be used to prevent concrete segregation. Layered pouring should be adopted, with each layer not exceeding 50cm in thickness. The upper layer of concrete should be poured before the lower layer of concrete has initially set, and then vibrated until the air is expelled.

[0049] Step 5: Formwork Removal and Curing: Formwork removal should follow the order of "removing the last formwork first and the last to be removed first". The formwork should be removed in a way that ensures that the concrete surface and edges are not damaged. The specific removal time depends on the temperature and the concrete strength growth. Usually, the formwork can be removed after 1-2 days. The bottom formwork should be removed when the concrete strength reaches more than 95% of the design strength. Test blocks cured under the same conditions should be left as a reference. When removing the formwork, pry it gently and place it carefully. Do not use a sledgehammer to hit it hard to prevent damage to the formwork and concrete surface. After the concrete is poured, it should be covered and moisturized within 12 hours.

[0050] The working principle is as follows: When in use, first move the first mold 1 and the second mold 3 horizontally to be close to the support base 11 until the bottom end of the mating crossbeam 42 is in contact with the inner bottom end of the L-shaped support base 16. After the positioning rod 9 is vertically aligned with the round hole inside the mating crossbeam 42, move the positioning rod 9 downward so that the positioning rod 9 can be inserted into the round hole inside the mating crossbeam 42, which can restrict the first mold 1. The above steps can be repeated to install the second mold 3.

[0051] Subsequently, wheels 32 are installed on the support base 33, allowing the support base 33 to move flexibly until the first mold 1 and the second mold 3 are aligned with the steel frame 4. Then, the drive motor 38 is turned on, driving the third gear 37 to rotate. The third gear 37 meshes with the second gear 36, allowing the second gear 36 to drive the central base rod 35 to rotate. When the central base rod 35 rotates, it pulls the connecting rope 34, causing the H-shaped locking key 40 to move towards one end of the drive motor 38. At this time, the connecting vertical rod 41 is fixedly installed on the top of the H-shaped locking key 40, and the movable guide rod 30 is connected to the support base 11, allowing the connecting vertical rod 41 to move the first mold 1. The H-shaped locking key 40 moves in the movable groove inside the support base 33, allowing the connecting vertical rod 41 to move in a straight line. Two connecting ropes 34 are installed on the outer ring of the central base rod 35, so that when the two connecting ropes 34 are wound up, they can drive the two supports... The support frame 11 moves synchronously, so that the first mold 1 and the second mold 3 can move closer to each other until the third gear 37 rotates 180°, which can drive the first mold 1 and the second mold 3 to move to fit against the outer surface of the steel frame 4. When the first mold 1 and the second mold 3 fit against each other, the second piston rod 14 can move to the limit position along the limiting plate 28. The side end surface of the limiting plate 28 is inclined at 45°, and the end of the second piston rod 14 away from the L-shaped air cylinder 15 is set in an arc state, which can improve the smoothness of contact between the second piston rod 14 and the limiting plate 28.

[0052] Subsequently, limited by the limiting plate 28, the second piston rod 14 can enter the interior of the L-shaped air cylinder 15, thereby allowing the first piston rod 8 to move upward, driving the positioning rod 9 to move out of the round hole inside the mating crossbeam 42, releasing the first mold 1. Furthermore, when the positioning rod 9 moves upward, it can also drive the first rack 7 to move upward along the surface of the first gear 21, thereby driving the first gear 21 to rotate. When the first gear 21 rotates, it can drive the second rack 20 to move downward, thus allowing the second displacement plate 18 and the first displacement plate 13 to simultaneously drive the push rod 12 downward. The push rod 12 is vertically aligned with the discharge hole inside the receiving cavity 23, and the first spring 24 can always drive the extrusion frame 25 to press the positioning pin 26 until it is in contact with the end of the receiving cavity 23 away from the hexagonal rod 22. This allows the positioning pin 26 to be pushed out of the receiving cavity 23 when the push rod 12 moves downward. Simultaneously, through the first mold 1 and the second mold 3... When the two molds are fitted together, the alignment crossbeam 43 can penetrate the inside of the side end of the first mold 1, so that the hole inside the top of the alignment crossbeam 43 is vertically aligned with the discharge hole inside the receiving cavity 23. Thus, the positioning pin 26 can be inserted into the inside of the alignment crossbeam 43, which can combine and restrict the first mold 1 and the second mold 3, preventing the first mold 1 and the second mold 3 from separating. Furthermore, since plastic gaskets are installed at the opposite ends of the first mold 1 and the second mold 3, the plastic gaskets can be squeezed and tightened together when the first mold 1 and the second mold 3 are combined, preventing leakage inside the first mold 1 and the second mold 3. After the above actions are completed, the third gear 37 can rotate through the central base rod 35. At this time, the central base rod 35 will lose the meshing force of the third gear 37. The elasticity of the second spring 39 will drive the H-shaped locking key 40 to move and reset, so that the support base 11 can move to disengage from the first mold 1, completing the laying and assembly of the first mold 1 and the second mold 3.

[0053] As an optional embodiment, such as Figure 8 As shown, the support base 33 also includes a plastic plate 44 and a hydraulic cylinder 45. The hydraulic cylinder 45 is fixedly installed at both ends of the support base 33, and the plastic plate 44 is fixedly installed at one end of the hydraulic cylinder 45.

[0054] In implementing this embodiment, when the support base 33 moves to the designated working area, the hydraulic cylinder 45 can be activated to move the plastic plate 44 to fit against the wheel 32, thereby restricting and fixing the wheel 32 and preventing the support base 33 from sliding again during the docking and assembly of the first mold 1 and the second mold 3, thus completing the work.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cast-in-place reinforced concrete formwork laying device, characterized in that, include: Support device (2), the top of which is slidably connected to a first mold (1) and a second mold (3); Positioning device (5), the positioning device (5) is fixedly installed on the side end of the first mold (1), and the two ends of the positioning device (5) are symmetrically fixedly installed with transmission devices (6). The conducting device (6) includes: a hexagonal rod (22), a storage cavity (23), a first spring (24), a pressing frame (25), and a positioning pin (26). The hexagonal rod (22) is fixedly installed at the top end of the storage cavity (23). The first spring (24) is symmetrically fixedly installed at the inner end of the storage cavity (23) near the hexagonal rod (22). The pressing frame (25) is fixedly installed at the end of the first spring (24) away from the hexagonal rod (22). The positioning pin (26) is placed equidistantly inside the storage cavity (23).

2. The cast-in-place reinforced concrete formwork laying device according to claim 1, characterized in that: The positioning device (5) includes a reinforcing bracket (10), a support base (11), a push rod (12), a first displacement plate (13), a second piston rod (14), an L-shaped air cylinder (15), an L-shaped support base (16), a synchronizing rod (17), a second displacement plate (18), a side end bracket (19), a second rack (20), and a first gear (21). The support base (11) is fixedly installed on the top of the reinforcing bracket (10), and the L-shaped support bases (16) are symmetrically fixedly installed on the support base (11). The top and side brackets (19) are symmetrically fixed on the side of the L-shaped support base (16) near the reinforcing bracket (10). The L-shaped air cylinder (15) is fixed between the two L-shaped support bases (16). The first piston rod (8) is slidably inserted into the top of the L-shaped air cylinder (15). The second piston rod (14) is slidably inserted into the bottom of the L-shaped air cylinder (15). The positioning rod (9) is fixedly installed on the side of the first piston rod (8). The first rack (7) is fixedly installed on the top of the positioning rod (9).

3. The cast-in-place reinforced concrete formwork laying device according to claim 2, characterized in that: The first gear (21) is rotatably mounted between two L-shaped support bases (16), and the first gear (21) is located above the positioning rod (9). The second displacement plate (18) is symmetrically fixedly mounted on the top of the second rack (20). The synchronizing rod (17) is symmetrically fixedly mounted on the side of the second displacement plate (18). The first displacement plate (13) is fixedly mounted on the bottom of the synchronizing rod (17). The push rod (12) is fixedly mounted on the bottom of the second displacement plate (18) and the first displacement plate (13) away from the support base (11).

4. The cast-in-place reinforced concrete formwork laying device according to claim 3, characterized in that: The support device (2) includes a central base plate (27), a limiting plate (28), a guide bracket (29), a movable guide rod (30), a limiting sleeve (31), a wheel (32), a support base (33), a connecting rope (34), a central base rod (35), a second gear (36), a third gear (37), a drive motor (38), a second spring (39), an H-shaped locking key (40), and a connecting vertical rod (41). The central base plate (27) is fixedly installed at the top center of the support base (33), and the guide bracket... (29) is fixedly installed on both sides of the central base plate (27), the movable guide rod (30) is slidably sleeved on the outer ring of the guide bracket (29), the limiting plate (28) is fixedly installed on both sides of the central base plate (27), and the limiting plate (28) is located above the guide bracket (29), the drive motor (38) is fixedly installed at the bottom front end of the central base plate (27), the third gear (37) is fixedly installed at the bottom center of the drive motor (38), and the second gear (36) is rotatably installed at the bottom front end of the support base (33).

5. The cast-in-place reinforced concrete formwork laying device according to claim 4, characterized in that: The central base rod (35) is fixedly installed at the top center of the second gear (36), the limiting sleeve (31) is fixedly installed at both ends of the top of the support base (33), the wheel (32) is equidistantly rotated at both ends of the support base (33), the H-shaped key (40) is symmetrically slidably inserted into the top front end of the support base (33), the second spring (39) is fixedly installed between the support base (33) and one side of the H-shaped key (40), the connecting rope (34) is fixedly installed between the central base rod (35) and the other side of the H-shaped key (40), and the connecting vertical rod (41) is fixedly installed between the H-shaped key (40) and the movable guide rod (30).

6. The cast-in-place reinforced concrete formwork laying device according to claim 5, characterized in that: The reinforcing bracket (10) is slidably inserted into the top of the limiting sleeve (31). The end of the movable guide rod (30) near the limiting sleeve (31) is connected to the support base frame (11). The first rack (7) and the second rack (20) are respectively meshed with the first gear (21). The end of the storage cavity (23) near the hexagonal rod (22) is connected to the side bracket (19). The side end of the support base frame (11) near the second displacement plate (18) is connected to the side end of the first mold (1). The interior of the L-shaped air cylinder (15) is hollow. A sealed cavity is formed between the first piston rod (8), the L-shaped air cylinder (15), and the second piston rod (14). The bottom end of the storage cavity (23) away from the hexagonal rod (22) is provided with a discharge hole.

7. A cast-in-place reinforced concrete formwork laying device according to claim 6, characterized in that: The storage cavity (23) has a storage slot inside, and the discharge hole is connected to the storage slot. The push rod (12) is vertically aligned with the discharge hole.

8. A cast-in-place reinforced concrete formwork laying device according to claim 7, characterized in that: The support base (33) has an active groove at the top front end, the teeth on the third gear (37) are distributed at an angle of 180°, and the side surface of the limiting plate (28) facing away from the central base plate (27) is inclined at 45°.

9. A cast-in-place reinforced concrete formwork laying device according to claim 8, characterized in that: The support base (33) also includes a plastic plate (44) and a hydraulic cylinder (45). The hydraulic cylinder (45) is fixedly installed at both ends of the support base (33), and the plastic plate (44) is fixedly installed at one end of the hydraulic cylinder (45).

10. A construction method for a cast-in-place reinforced concrete formwork laying device, applied to the cast-in-place reinforced concrete formwork laying device as described in claim 9, characterized in that, Includes the following steps: Step 1: Measurement and layout: Using instruments such as total station, theodolite, and level, accurately lay out the positioning axis, edge line, and elevation control line of the column on the completed foundation or floor slab, and mark them with ink lines; Step 2, Rebar Binding: Bind the stirrups from top to bottom or bottom to top according to the design spacing. The overlapping points of the stirrup hooks should be staggered along the vertical of the column. All intersections of the rebars must be firmly bound. Tie high-strength cement blocks or plastic clips between the rebar cage and the formwork to ensure that the rebars have sufficient protective layer thickness after the concrete is poured. Step 3, Template erection: Move the device to align with the tied steel reinforcement cage. When the drive motor (38) is running, it can drive the first mold (1) and the second mold (3) to fit together. The first mold (1) and the second mold (3) can be installed together on the steel reinforcement cage. After the first mold (1) and the second mold (3) are combined, the first mold (1) and the second mold (3) can be tightened again to prevent the first mold (1) and the second mold (3) from loosening. Step 4, Concrete Pouring: Before pouring, a 5-10cm thick layer of concrete mortar should be laid to prevent honeycomb and pitting at the column base. When concrete is poured from a height, the free fall height should not exceed 2m. If it does, measures such as chutes or pipes should be used to prevent concrete segregation. Layered pouring should be adopted, with each layer not exceeding 50cm in thickness. The upper layer of concrete should be poured before the lower layer of concrete has initially set, and then vibrated until the air is expelled. Step 5: Formwork Removal and Curing: Formwork removal should follow the order of "removing the last formwork first and the last to be removed first". The formwork should be removed in a way that ensures that the concrete surface and edges are not damaged. The specific removal time depends on the temperature and the concrete strength growth. Usually, the formwork can be removed after 1-2 days. The bottom formwork should be removed when the concrete strength reaches more than 95% of the design strength. Test blocks cured under the same conditions should be left as a reference. When removing the formwork, pry it gently and place it carefully. Do not use a sledgehammer to hit it hard to prevent damage to the formwork and concrete surface. After the concrete is poured, it should be covered and moisturized within 12 hours.

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