Steel bar truss floor plate formwork fixing device

Abstract

The invention discloses a steel bar truss floor plate formwork fixing device, and belongs to the technical field of steel bar building component production, the steel bar truss floor plate formwork fixing device comprises a fixing box body, the whole fixing box body is of an L-shaped structure, and a rapid forming assembly is slidably connected between a first sliding rod and a second sliding rod; the rapid forming assembly is arranged in the mold plate and used for improving the compactness of concrete, reducing gaps and improving the surface flatness, and the ejection assembly is arranged in the rapid forming assembly and used for demolding of the mold plate to avoid damage and deformation caused by uneven stress. By adopting the rapid forming assembly and the ejection assembly, a vibration or vibration effect can be formed after concrete is poured, uniform distribution of the concrete in the formwork is facilitated, generation of bubbles and cavities is reduced, meanwhile, the concrete is more tightly attached to the surface of the formwork, the adhesive force is reduced, and the construction efficiency is improved. Therefore, the formwork and the concrete are separated more smoothly, and the demolding effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of steel reinforcement building component production technology, specifically relating to a steel truss floor slab formwork fixing device. Background Technology

[0002] Reinforced truss floor slab formwork is a widely used formwork system in building construction, especially in high-rise and large-span buildings. It combines the advantages of steel trusses and floor slab formwork, offering high structural stability, construction efficiency, and cost control. The structure is relatively simple, allowing for rapid assembly and disassembly, reducing the complexity of traditional formwork. Compared to traditional wooden or steel formwork, truss structures have better load-bearing capacity, supporting more loads simultaneously and reducing the amount of supporting scaffolding, thus significantly increasing construction speed. Furthermore, the steel used in reinforced truss floor slab formwork is lighter than traditional formwork materials, resulting in lower transportation and storage costs. The formwork is reusable, reducing waste and significantly reducing timber usage compared to traditional concrete pouring methods, thus improving resource utilization.

[0003] Existing steel truss floor slab formwork often needs to be precast and poured in the factory. When forming the formwork, the adhesion between the mold and the concrete may be relatively large, especially after the formwork has been poured and hardened. The adhesion between the formwork and the concrete increases the difficulty of manual demolding, making it difficult to separate the formwork. In addition, it can also cause uneven distribution of concrete within the formwork, resulting in an uneven floor slab surface and even some quality defects such as air bubbles and cracks. This not only affects the construction quality, but also prolongs the amount of repair work and costs later. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a steel truss floor slab formwork fixing device.

[0005] The technical solution adopted to solve the above-mentioned technical problems is: a steel truss floor slab formwork fixing device, including a fixing box, the fixing box being L-shaped in structure, and several No. 2 sliding rods fixedly connected to the top of one side of the fixing box, while two No. 1 sliding rods are fixedly connected to both sides of the fixing box at the bottom of the No. 2 sliding rods. A rapid forming component is slidably connected between the No. 1 and No. 2 sliding rods to improve the compactness of concrete, reduce voids, and improve surface flatness. The rapid forming component is equipped with an ejection component to prevent damage and deformation caused by uneven stress during formwork demolding.

[0006] Through the above technical solution, the lateral reciprocating motion of the molding box can make the concrete vibrate and flow fully in the formwork, so that the air bubbles inside the concrete can be effectively discharged, enhancing the density and strength of the concrete. The reverse movement of the formwork and the baffle helps to push the concrete to better fill every corner of the formwork, avoiding irregular gaps, thereby improving the pouring quality.

[0007] Furthermore, the rapid prototyping component includes a molding box, with two No. 1 pulleys rotatably connected to both sides of the molding box. At the same time, No. 2 guide plates, which are inclined, are welded to the other two sides of the molding box. A baffle is slidably connected to the top surface of the molding box, and several rectangularly symmetrically arranged spring rods are installed on the top surface of the baffle. The spring rods are fixedly connected to a movable frame.

[0008] The above technical solutions can effectively reduce the unevenness or surface defects that may occur on the contact surface between the formwork and the concrete. Through this vibration process, the surface of the concrete can be made smoother, reducing the difficulty of subsequent processing and ensuring the overall appearance quality of the steel truss floor slab.

[0009] Furthermore, the spring inside the spring rod is located at the top of the movable frame, and the spring rod is arranged in an L-shape. At the same time, a second pulley, which is arranged in a rectangular symmetrical configuration, is rotatably connected to one side of the spring rod. The second pulley is slidably connected to the second sliding rod, and the second sliding rod limits the movement of the second pulley. The first pulley is slidably connected to the first sliding rod, and the first sliding rod limits the movement of the first pulley. A support rod is rotatably connected to the side of the movable frame away from the second pulley, and the movable frame and the support rod are arranged in a triangular configuration.

[0010] The above technical solutions can improve the fluidity of concrete, making it flow more smoothly in the molding box and achieve better filling effect. This movement can accelerate the contact and bonding between concrete and steel truss, avoid large shrinkage or deformation of concrete due to air bubbles and voids during the solidification process, and improve the final strength and stability of the component.

[0011] Furthermore, a No. 1 connecting plate is rotatably connected to one side of the top surface of the movable frame, and a No. 2 connecting plate is rotatably connected to the other end of the No. 1 connecting plate. At the same time, a No. 3 connecting plate, which is arranged in an L-shape, is rotatably connected to the other end of the No. 3 connecting plate away from the No. 2 connecting plate. A No. 4 connecting plate is rotatably connected to the other side of the connection end of the No. 3 connecting plate and the No. 2 connecting plate, and the other end of the No. 4 connecting plate is rotatably connected to the fixed box. At the same time, the connecting shaft of the No. 4 connecting plate is rotatably connected through the No. 3 connecting plate, and the through end of the connecting shaft of the No. 4 connecting plate is fixedly connected to the No. 2 connecting plate.

[0012] Through the above technical solution, when the template and baffle move laterally, the template surface will be subjected to a dynamic force, which helps to reduce the concentration of static pressure in one direction, avoid uneven stress on the template during concrete pouring, and reduce the risk of template deformation or damage.

[0013] Furthermore, a synchronous belt assembly is provided on the side of the fixed housing away from the fourth connecting plate, and the synchronous pulley connecting shaft in the synchronous belt assembly is rotatably connected to the fixed housing. At the same time, one of the synchronous pulley connecting shafts in the synchronous belt assembly is rotatably connected through the fixed housing. The through end of one of the synchronous pulley connecting shafts in the synchronous belt assembly is fixedly connected to the fourth connecting plate. A first motor is installed in the fixed housing located at the bottom of the synchronous belt assembly, and the first motor is fixedly connected to another synchronous pulley in the synchronous belt assembly.

[0014] By employing the above technical solutions, and by making the molding box and the baffle move synchronously and in opposite directions, the vibration transmission during the concrete pouring process can be optimized, making the filling and curing process of concrete more efficient. Vibration can accelerate the flow and compaction of concrete, reduce manual vibration and adjustment, improve construction efficiency, and shorten the construction cycle.

[0015] Furthermore, the ejection assembly includes a second motor that is fixedly mounted to the molding box, and the output end of the second motor is rotatably connected to the molding box. At the same time, a rotating rod is fixedly connected to the end of the second motor. The end of the rotating rod away from the second motor is rotatably connected to the molding box, and the rotating rod is rotatably connected to two mounting seats. The mounting seats are fixedly mounted to the molding box. The rotating rod is fixedly connected to two push rods, and the push rods are T-shaped structures with a semi-arc surface.

[0016] Through the above technical solution, the template can be smoothly detached from the concrete surface without damage. Through the synchronous action of the lateral reciprocating motion and the ejection component, the friction between the template and the concrete surface can be reduced, making the concrete surface smoother and flatter, and reducing possible defects and surface unevenness.

[0017] Furthermore, the bottom surface of the molding box has four rectangular symmetrical through holes, and the center of the bottom surface of the molding box has two through slots. The top rod is located directly below the through slots. The overall length of the through slots is greater than that of the top rod. A top plate is slidably connected inside the molding box, and four limiting rods are fixedly connected to the bottom surface of the top plate. The limiting rods are located inside the through holes and are slidably connected to the molding box.

[0018] The above technical solution can automatically complete the demolding process of the template, reducing manual intervention. Combined with the synergistic effect of the lateral reciprocating motion of the template and the reverse motion of the baffle, the construction process is smoother and more efficient. It not only improves work efficiency but also reduces the labor intensity of construction workers, making it particularly suitable for large-scale construction.

[0019] Furthermore, two No. 1 guide plates are fixedly connected to both sides of the inner wall of the fixed box located in the molding box, and the two No. 1 guide plates are arranged in a mirror symmetrical manner. At the same time, the No. 1 guide plates are inclined as a whole. A collection box is provided in the middle of the two No. 1 guide plates, and the collection box is placed at the bottom of the fixed box. Meanwhile, a door panel with a double opening direction is hinged to the front of the fixed box.

[0020] The above technical solution allows the molding box to be easily ejected from the concrete and cleaned after each use, avoiding damage caused by excessive adhesion and maintaining its integrity and usability. This enables the molding box to be used multiple times, reducing construction costs.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention uses a rapid prototyping assembly. The No. 1 motor drives the synchronous belt assembly to transmit power, so that the No. 4 connecting plate rotates with the connection point with the fixed box as the origin. When the No. 4 connecting plate rotates, it can directly drive the No. 2 connecting plate to rotate synchronously, so that the other end of the No. 3 connecting plate rotates relative to the molding box, synchronously driving the molding box to move back and forth horizontally on the top of the fixed box. When the No. 2 connecting plate rotates, the No. 1 connecting plate moves with the No. 2 connecting plate, and the two ends of the No. 1 connecting plate respectively generate relative to the moving frame and the No. 2 connecting plate. The movement of the frame causes the second pulley on one side of the frame to move back and forth on the second sliding rod. This causes the baffle and the forming box to move back and forth on the top of the fixed box in an alternating cycle. This allows the baffle to smooth out excess concrete in the forming box, promoting the molding process. Vibration can improve the compactness of the concrete, reduce voids, improve surface smoothness, and optimize the demolding effect and construction efficiency of the formwork. In addition, this design can effectively reduce the risk of formwork deformation and damage, thereby improving the overall construction quality. (2) By using an ejector assembly, the No. 2 motor drives the rotating rod to rotate, which in turn causes the ejector rod to rotate. The semi-arc end of the ejector rod gradually rotates into the through slot of the forming box and then contacts the top plate, thereby moving the top plate and causing it to move upward in the forming box. At the same time, the limiting rod moves in the through hole, thereby lifting the steel truss floor slab template fixed in the forming box upward, which can ensure that the template is smoothly ejected from the forming box. The separation force between the template and the forming box is evenly applied by the ejector assembly, which can prevent the template from getting stuck due to adhesion or deformation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection between the first sliding rod and the first pulley of the present invention; Figure 3 This is a schematic diagram of the connection between the second slide rod and the second pulley of the present invention; Figure 4 This is a schematic diagram of the rapid prototyping component structure of the present invention; Figure 5 yes Figure 3 A magnified structural diagram at point A; Figure 6 This is a schematic diagram of the bottom structure of the molding box of the present invention; Figure 7 This is an exploded view of the ejector assembly of the present invention; Figure 8 yes Figure 6 A magnified structural diagram at point B.

[0023] Attached reference numerals: 11. Fixed box; 12. Door panel; 13. No. 1 slide rod; 14. No. 2 slide rod; 15. No. 1 guide plate; 16. Collection box; 2. Rapid prototyping assembly; 21. Molding box; 22. No. 1 pulley; 23. Baffle; 24. Moving frame; 25. Support rod; 26. Spring rod; 27. No. 2 pulley; 28. No. 1 connecting plate; 29. ​​No. 2 connecting plate; 210. No. 3 connecting plate; 211. No. 4 connecting plate; 212. Synchronous belt assembly; 213. No. 1 motor; 214. No. 2 guide plate; 3. Ejection assembly; 31. No. 2 motor; 32. Mounting base; 33. Ejector rod; 34. Through groove; 35. Top plate; 36. Limiting rod; 37. Through hole; 38. Rotating rod. Detailed Implementation

[0024] 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.

[0025] like Figures 1-6As shown in this embodiment, a steel truss floor slab formwork fixing device includes a fixing box 11. The fixing box 11 is generally L-shaped, and several No. 2 sliding rods 14 are fixedly connected to the top of one side of the fixing box 11. At the same time, two No. 1 sliding rods 13 are fixedly connected to both sides of the fixing box 11 at the bottom of the No. 2 sliding rods 14. Two No. 1 guide plates 15 are fixedly connected to both sides of the inner wall of the fixing box 11 located in the forming box 21. The two No. 1 guide plates 15 are arranged in a mirror symmetrical manner, and the No. 1 guide plates 15 are generally inclined. A material collection box 16 is located in the middle of the first guide plate 15. The material collection box 16 adopts a box body with an open top, commonly used in existing technology. The lateral reciprocating motion of the forming box 21 allows the concrete to vibrate and flow fully within the formwork, effectively expelling air bubbles and enhancing the density and strength of the concrete. The counter-movement of the formwork and baffle 23 helps to push the concrete to better fill every corner of the formwork, avoiding irregular gaps and thus improving the pouring quality. Furthermore, the material collection box 16 is placed at the bottom of the fixed box 11. The fixed housing 11 has a hinged door panel 12 that opens in a bi-directional manner. When the aggregate bin 16 is full of concrete, the worker can open the door panel 12 to replace the aggregate bin 16 inside the fixed housing 11. A rapid prototyping component 2 is slidably connected between the first slide rod 13 and the second slide rod 14 to improve the compactness of the concrete, reduce voids, and improve surface smoothness. The rapid prototyping component 2 includes a molding box 21, and two first pulleys 22 are rotatably connected to both sides of the molding box 21. At the same time, inclined... The second guide plate 214 is placed, and the top surface of the forming box 21 is slidably connected to the baffle 23, which can effectively reduce the unevenness or surface defects that may occur on the contact surface between the template and the concrete. Through this vibration process, the surface of the concrete can be made smoother, reducing the difficulty of subsequent processing and ensuring the overall appearance quality of the steel truss floor slab. Several rectangular symmetrical spring rods 26 are installed on the top surface of the baffle 23. The springs in the spring rods 26 are located at the top of the moving frame 24. A connecting plate 28 is rotatably connected to one side of the top surface of the moving frame 24.

[0026] like Figures 1-7As shown, the other end of the first connecting plate 28 is rotatably connected to the second connecting plate 29, and the other end of the second connecting plate 29 is rotatably connected to the third connecting plate 210, which is arranged in an L-shape. The end of the third connecting plate 210 away from the second connecting plate 29 is rotatably connected to the side wall of the molding box 21. The other side of the connection between the third connecting plate 210 and the second connecting plate 29 is rotatably connected to the fourth connecting plate 211. A synchronous belt assembly 212 is provided on the side of the fixed box 11 away from the fourth connecting plate 211, and the synchronous pulley connecting shaft in the synchronous belt assembly 212 is rotatably connected to the fixed box 11. At the same time, one of the synchronous pulley connecting shafts in the synchronous belt assembly 212 is connected to the fixed box 11. The box 11 is rotatably connected through, and one of the synchronous pulley connecting shafts in the synchronous belt assembly 212 is fixedly connected to the fourth connecting plate 211 through. At the same time, the connecting shaft of the fourth connecting plate 211 is rotatably connected to the third connecting plate 210 through. The connecting shaft of the fourth connecting plate 211 is fixedly connected to the second connecting plate 29 through. This can improve the fluidity of concrete, making it flow more smoothly in the molding box 21 and filling it better. This movement can accelerate the contact and bonding between concrete and steel truss, avoid large shrinkage or deformation of concrete due to air bubbles and voids during the solidification process, and improve the final strength and stability of the component.

[0027] like Figures 2-7 As shown, a first motor 213 is installed in the fixed housing 11 at the bottom of the synchronous belt assembly 212, and the first motor 213 is connected and fixed to another synchronous pulley inside the synchronous belt assembly 212. The other end of the fourth connecting plate 211 is rotatably connected to the fixed housing 11. The spring rod 26 is L-shaped, and a second pulley 27, which is symmetrically arranged in a rectangle, is rotatably connected to one side of the spring rod 26. The second pulley 27 is slidably connected to the second sliding rod 14, and the second sliding rod 14 limits the second pulley 27. The first pulley 22 is slidably connected to the first sliding rod 13, and the first sliding rod 13 limits the first pulley 22. A support rod is rotatably connected to the side of the moving frame 24 away from the second pulley 27. 25. When the template and baffle 23 reciprocate laterally, the template surface is subjected to a dynamic force, which helps to reduce the concentration of static pressure in one direction, avoid uneven stress on the template during concrete pouring, and reduce the risk of template deformation or damage. The moving frame 24 and the support rod 25 are arranged in a triangular structure, and the spring rod 26 is fixedly connected to the moving frame 24 through it. Through the synchronous movement of the molding box 21 and the baffle 23 in opposite directions, the vibration transmission during concrete pouring can be optimized, making the filling and curing process of concrete more efficient. Vibration can accelerate the flow and compaction of concrete, reduce manual vibration and adjustment, improve construction efficiency, and shorten the construction cycle.

[0028] like Figures 1-8As shown, the rapid prototyping component 2 is equipped with an ejector component 3 for demolding the template to avoid damage and deformation caused by uneven force. The ejector component 3 includes a second motor 31 that is fixedly installed with the molding box 21. The output end of the second motor 31 is rotatably connected to the molding box 21 through it. This allows the molding box 21 to be smoothly ejected from the concrete and cleaned after each use, avoiding damage caused by excessive adhesion. This maintains the integrity and usability of the molding box 21, allowing it to be used multiple times and reducing construction costs. At the same time, a rotating rod 38 is fixedly connected to the end of the second motor 31 through it. The end of the rotating rod 38 away from the second motor 31 is rotatably connected to the molding box 21. Four rectangular symmetrical through holes 37 are opened through the bottom surface of the molding box 21, and two through slots 34 are opened through the middle of the bottom surface of the molding box 21.

[0029] like Figures 2-8 As shown, the top rod 33 is located directly below the through groove 34, and the overall length of the through groove 34 is greater than that of the top rod 33. The template can smoothly detach from the concrete surface without damage. Through the synchronous action of the lateral reciprocating motion and the ejection component 3, the friction between the template and the concrete surface can be reduced, making the concrete surface smoother and flatter, reducing possible defects and surface unevenness. In addition, the top plate 35 is slidably connected inside the molding box 21, and four limiting rods 36 are fixedly connected to the bottom surface of the top plate 35. The limiting rods 36 are located in the through hole 37, and the limiting rods 36 are connected to the molding box 21. The sliding connection, with the rotating rod 38 passing through two mounting seats 32, and the mounting seats 32 being fixedly installed with the molding box 21, and the rotating rod 38 passing through two top rods 33, which are T-shaped structures with a semi-arc-shaped surface, can automatically complete the demolding process of the template, reducing manual intervention. Combined with the synergistic effect of the lateral reciprocating motion of the template and the reverse motion of the baffle 23, the construction process is smoother and more efficient, which not only improves work efficiency but also reduces the labor intensity of construction workers, making it particularly suitable for large-scale construction.

[0030] The working principle of this embodiment is as follows: before the template is fixed, the molding box 21 and the baffle 23 are separated, the top of the molding box 21 is open, and then the steel truss is put into the molding box 21 and concrete is poured into the molding box 21 for cooling and fixing.

[0031] During the concrete cooling process, motor 213 drives synchronous belt assembly 212 to rotate, causing connecting plate 211 to rotate around the connection point with fixed box 11. The rotation of connecting plate 211 directly drives connecting plate 29 to rotate synchronously. At the same time, connecting plate 210 rotates relative to connecting plate 29 and connecting plate 211 respectively. Connecting plate 210 moves along the rotation trajectory of connecting plate 211, causing the other end of connecting plate 210 to rotate relative to molding box 21. Synchronously, molding box 21 moves laterally back and forth on the top of fixed box 11 under the main action of pulley 22 and sliding rod 13.

[0032] When the second connecting plate 29 rotates, the first connecting plate 28 moves with it. The two ends of the first connecting plate 28 move relative to the moving frame 24 and the second connecting plate 29, respectively. This causes the second pulley 27 on one side of the moving frame 24 to move back and forth on the second sliding rod 14. Since the second connecting plate 29 and the fourth connecting plate 211 are arranged in a U-shape, when the baffle 23 and the forming box 21 move back and forth on the top of the fixed box 11, the baffle 23 and the forming box 21 move in an alternating cycle. This allows the baffle 23 to smooth out the excess concrete in the forming box 21, promote molding, and push it onto the second guide plate 214. Then, under the action of gravity, it gradually slides down onto the first guide plate 15 and then falls onto the collection box 16 for collection and sorting.

[0033] After the steel truss and concrete in the molding box 21 cool and solidify, a steel truss floor slab template is formed. Then, the first motor 213 stops running, causing the molding box 21 to separate from the baffle 23. The second motor 31 runs, driving the rotating rod 38 to rotate, which in turn causes the top rod 33 to rotate. The semi-circular end of the top rod 33 gradually rotates into the through groove 34 of the molding box 21 and contacts the top plate 35, thereby moving the top plate 35 upward within the molding box 21. At the same time, the limiting rod 36 moves within the through hole 37, thereby lifting the steel truss floor slab template fixed in the molding box 21 upward for easy removal.

[0034] By repeating the above steps, the continuous processing and forming of the steel truss floor slab formwork can be achieved.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A fixing device for steel truss floor slab formwork, comprising a fixing box (11), wherein the fixing box (11) is generally arranged in an L-shape, and a plurality of second sliding rods (14) are fixedly connected to the top of one side of the fixing box (11), and two first sliding rods (13) are fixedly connected to both sides of the fixing box (11) at the bottom of the second sliding rods (14), characterized in that: A rapid prototyping component (2) is slidably connected between the first slide rod (13) and the second slide rod (14) to improve the compactness of concrete, reduce voids, and improve surface flatness. The rapid prototyping component (2) is equipped with an ejection component (3) for demolding the template to avoid damage and deformation caused by uneven stress.

2. The steel truss floor slab formwork fixing device according to claim 1, characterized in that, The rapid prototyping component (2) includes a molding box (21), and two No. 1 pulleys (22) are rotatably connected to both sides of the molding box (21). At the same time, No. 2 guide plates (214) are welded to the other two sides of the molding box (21) and are inclined. A baffle (23) is slidably connected to the top surface of the molding box (21), and several rectangular symmetrical spring rods (26) are installed on the top surface of the baffle (23). At the same time, a movable frame (24) is fixedly connected through the spring rods (26).

3. The steel truss floor slab formwork fixing device according to claim 2, characterized in that, The spring inside the spring rod (26) is located at the top of the movable frame (24), and the spring rod (26) is set in an L-shaped structure. At the same time, a second pulley (27) is rotatably connected to one side of the spring rod (26) and is arranged in a rectangular symmetrical configuration. The second pulley (27) is slidably connected to the second slide rod (14), and the second slide rod (14) limits the second pulley (27). The first pulley (22) is slidably connected to the first slide rod (13), and the first slide rod (13) limits the first pulley (22). A support rod (25) is rotatably connected to the side of the movable frame (24) away from the second pulley (27), and the movable frame (24) and the support rod (25) are arranged in a triangular structure.

4. A steel truss floor slab formwork fixing device according to claim 2, characterized in that, The top surface of the movable frame (24) is rotatably connected to a first connecting plate (28), and the other end of the first connecting plate (28) is rotatably connected to a second connecting plate (29). At the same time, the other end of the second connecting plate (29) is rotatably connected to a third connecting plate (210) arranged in an L-shape. The end of the third connecting plate (210) away from the second connecting plate (29) is rotatably connected to the side wall of the molding box (21). The other side of the connection end of the third connecting plate (210) and the second connecting plate (29) is rotatably connected to a fourth connecting plate (211), and the other end of the fourth connecting plate (211) is rotatably connected to the fixed box (11). At the same time, the connecting shaft of the fourth connecting plate (211) is rotatably connected to the third connecting plate (210) through it. The through end of the connecting shaft of the fourth connecting plate (211) is connected and fixed to the second connecting plate (29).

5. A steel truss floor slab formwork fixing device according to claim 4, characterized in that, A synchronous belt assembly (212) is provided on the side of the fixed housing (11) away from the fourth connecting plate (211), and the synchronous pulley connecting shaft in the synchronous belt assembly (212) is rotatably connected to the fixed housing (11). At the same time, one of the synchronous pulley connecting shafts in the synchronous belt assembly (212) is rotatably connected through the fixed housing (11). The through end of one of the synchronous pulley connecting shafts in the synchronous belt assembly (212) is fixedly connected to the fourth connecting plate (211). A first motor (213) is installed in the fixed housing (11) at the bottom of the synchronous belt assembly (212), and the first motor (213) is fixedly connected to another synchronous pulley in the synchronous belt assembly (212).

6. A steel truss floor slab formwork fixing device according to claim 2, characterized in that, The ejector assembly (3) includes a second motor (31) that is fixedly installed on the molding box (21). The output end of the second motor (31) is rotatably connected to the molding box (21). At the same time, a rotating rod (38) is fixedly connected to the end of the second motor (31). The end of the rotating rod (38) away from the second motor (31) is rotatably connected to the molding box (21). The rotating rod (38) is rotatably connected to two mounting seats (32). At the same time, the mounting seats (32) are fixedly installed on the molding box (21). The rotating rod (38) is fixedly connected to two push rods (33). The push rods (33) are T-shaped structures. The T-shaped surface of the push rods (33) is semi-arc-shaped.

7. A steel truss floor slab formwork fixing device according to claim 6, characterized in that, The bottom surface of the molding box (21) has four through holes (37) arranged in a rectangular symmetrical pattern, and two through slots (34) are opened in the middle of the bottom surface of the molding box (21). At the same time, the top rod (33) is located directly below the through slot (34). The overall length of the through slot (34) is greater than that of the top rod (33). The top plate (35) is slidably connected inside the molding box (21). At the same time, four limiting rods (36) are fixedly connected to the bottom surface of the top plate (35). The limiting rods (36) are located inside the through holes (37) and are slidably connected to the molding box (21).

8. A steel truss floor slab formwork fixing device according to claim 7, characterized in that, Two No. 1 guide plates (15) are fixedly connected to the inner walls of the fixed box (11) located in the molding box (21), and the two No. 1 guide plates (15) are arranged in a mirror symmetrical manner. At the same time, the No. 1 guide plates (15) are inclined as a whole. A collection box (16) is provided in the middle of the two No. 1 guide plates (15), and the collection box (16) is placed at the bottom of the fixed box (11). At the same time, a door panel (12) is hinged to the front of the fixed box (11) and is arranged in a bi-opening direction.

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