Fixing device for closed stair aluminum mold

Abstract

The utility model relates to the field of aluminum formwork stair construction, and discloses a fixing device for a closed type stair aluminum formwork. The fixing device for the closed stair aluminum mold comprises an aluminum bottom plate, the side end of the aluminum bottom plate is fixedly connected with a side plate, the inner side end of the side plate is fixedly connected with a step plate, the surface of the step plate is fixedly connected with an L-shaped plate, and the interior of the L-shaped plate is in threaded connection with a screw rod; the surface of the step plate is in threaded connection with a first downward pressing steel pipe through a screw rod, a triangular plate is installed in the side plate and located at the lower end of the first downward pressing steel pipe, a screw rod is in threaded connection with the interior of the triangular plate, the side end of the triangular plate is fixedly connected with a connecting rod, and a transverse supporting pipe is arranged at the lower end of the side plate. According to the device, through mutual pressing and fixing between the triangular plate and the pressing steel pipe and the aluminum formwork, the overall stability of the device can be improved, and the situation of material leakage can be reduced during grouting.

Description

Technical Field

[0001] The present application belongs to the technical field of aluminum formwork staircase construction, and specifically relates to a fixing device for a closed aluminum formwork of a staircase. Background Art

[0002] Aluminum formwork is a material frequently used in prefabricated construction. Made primarily from aluminum alloy profiles and processed through machining and welding, it's suitable for concrete construction. Closed-type aluminum staircase formwork is a common formwork system used in cast-in-place concrete staircase construction, providing efficient and stable support and neatly formed surfaces, reducing construction burdens.

[0003] For example, patent publication number CN212388986U discloses a stair tread formwork fixing device, comprising a detachable base and an inclined rod, to which a plurality of skirting board formwork assemblies are detachably connected; the skirting board formwork assemblies comprise a positioning rod and a skirting board formwork rod rotatably connected to the positioning rod, wherein a fastener is provided at the connection between the positioning rod and the skirting board formwork rod; the skirting board formwork rod is provided with a skirting board fixing angle steel, and the skirting board fixing angle steel is provided with a skirting board. The utility model, through the rotatable connection between the skirting board formwork rod and the positioning rod, enables the skirting board formwork rod to be adjusted to always be perpendicular to the ground when the slope of the inclined rod changes; the provision of a lead line improves the accuracy of the skirting board formwork rod being perpendicular to the ground; the positioning rod detachably connected to the inclined rod allows the position and height of the skirting board formwork assembly on the inclined rod to be adjusted, thereby ensuring that the device can be used to cast stairs of different slopes; and the provision of a protrusion on the horizontal angle steel facilitates the positioning of the skirting board and prevents the skirting board from shaking.

[0004] However, the application's standardized stair tread formwork fixing device is not suitable for the installation and fixation of stair aluminum formwork. Stair aluminum formwork is usually spliced ​​together in several parts. When the fixing effect between the connected formworks is poor, leakage may occur during concrete pouring. Utility Model Content

[0005] The purpose of this application is to solve the problem that the above-mentioned standardized stair tread formwork fixing device is not suitable for the installation and fixation of stair aluminum formwork. Stair aluminum formwork is usually spliced ​​together with several parts. When the fixing effect between the connected formworks is poor, leakage may occur during concrete pouring. A fixing device for a closed stair aluminum formwork is provided.

[0006] The technical solution adopted in this application is as follows: A fixing device for a closed staircase aluminum formwork, comprising an aluminum base plate, the side ends of the aluminum base plate are fixedly connected to side panels, the inner ends of the side panels are fixedly connected to step panels, the surface of the step panel is fixedly connected to an L-shaped panel, the internal threads of the L-shaped panel are connected to screws, the surface of the step panel is threadedly connected to a first downward-pressing steel pipe through the screws, a triangular plate is installed inside the side panel and at the lower end of the first downward-pressing steel pipe, the internal threads of the triangular plate are connected to screws, the side ends of the triangular plate are fixedly connected to connecting rods, the lower ends of the side panels are provided with transverse support tubes, the side ends of the side panels are provided with multiple steel bar grooves, and the surface of the step panel is fixedly installed with a frame plate.

[0007] By adopting the above technical solution, the aluminum base plate serves as the structural base of the aluminum formwork, forming the staircase frame together with the side panels on either side. The step panels can be assembled onto the inner ends of the side panels according to the actual installation dimensions between the stairs and secured and welded using steel bar grooves. L-shaped plates mounted on the surface of the step panels provide locations for screw connections. These screws secure the first and second downward pressure steel pipes to the surface of the step panels, allowing them to lean against the surface along the slope of the stairs. The first and second downward pressure steel pipes press down on the step panels, enhancing structural stability. The triangular plates can be inserted into grooves on the side panels and secured to the lower ends of the first and second downward pressure steel pipes using screws, simultaneously limiting the position of the first and second downward pressure steel pipes on both sides. Finally, auxiliary branch rods in the connecting rod industry provide further support for the triangular plates at the outer ends of the side panels. The bottom of the aluminum base panel can be supported by multiple transverse support tubes.

[0008] In a preferred embodiment, a fastening plate is fixedly connected to the top end of the screw rod, and a nut is threadedly connected to the surface of the screw rod.

[0009] By adopting the above technical solution, the fastening plate is convenient for construction workers to use the rotating installation screw at work.

[0010] In a preferred embodiment, a second downward pressing steel pipe is fixedly installed on the surface of the step plate and located at the side end of the first downward pressing steel pipe, and a triangular plate is threadedly connected to the bottom of the second downward pressing steel pipe through a screw.

[0011] By adopting the above technical solution, the first and second downward pressing steel pipes are connected and fixed by the triangular plate connected to the side plate. This can support and fix the aluminum film plate in multiple directions, improve the stability of the device, and avoid leakage during the later grouting.

[0012] In a preferred embodiment, an auxiliary branch rod is welded to the lower end of the connecting rod.

[0013] By adopting the above technical solution, the auxiliary branch pipe rod is used to support the triangle plate, and can cooperate with the longitudinal support pipe to play the role of auxiliary support, thereby reducing the support pressure at the transverse support pipe.

[0014] In a preferred embodiment, a steel pipe ring is threadedly connected to the surface of the transverse support pipe, and the interior of the steel pipe ring is fixedly connected to the longitudinal support pipe.

[0015] By adopting the above technical solution, multiple supporting pipes at the bottom of the aluminum membrane plate are threadedly connected through steel pipe rings and bolts, which is convenient for assembly before construction.

[0016] In a preferred embodiment, a cross bar is fixedly connected to the bottom side end of the longitudinal support tube.

[0017] By adopting the above technical solution, the crossbar can connect multiple longitudinal support tubes of different heights, thereby improving the stability of the device.

[0018] In a preferred embodiment, the bottom of the side panel is connected with an oblique rod.

[0019] By adopting the above technical solution, the angle between the diagonal rod and the aluminum base plate is vertical, and the bottom of the diagonal rod is obliquely inserted into the ground, which can stabilize the angle.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In the present application, the bottom of the aluminum base plate can be supported by a plurality of transverse support tubes, and the side ends of each transverse support tube are installed with longitudinal support tubes and fixed to the ground. The multiple support tubes at the bottom of the aluminum membrane plate are threadedly connected by steel pipe rings and bolts, which is convenient for assembly before construction. The crossbar can connect multiple longitudinal support tubes of different heights to improve the stability of the device. The angle between the diagonal rod and the aluminum base plate is vertical, and the bottom of the diagonal rod is obliquely inserted into the ground, which can stabilize the angle. The first downward pressure steel pipe and the second downward pressure steel pipe are installed on the surface of the aluminum formwork, and are connected and fixed by the triangular plate connected to the side plate. The aluminum membrane plate can be supported and fixed as a whole in multiple directions, thereby improving the stability of the device and avoiding leakage during grouting in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a fixing device for a closed staircase aluminum formwork in this application;

[0023] Figure 2 This is a schematic diagram of the structure of the aluminum mold surface support device in this application;

[0024] Figure 3 This is a schematic diagram of the aluminum mold bottom bracket structure in this application.

[0025] Markings in the figure: 1. Aluminum base plate; 2. Side plate; 3. Step plate; 4. Frame plate; 5. L-shaped plate; 6. Screw; 7. Steel bar groove; 8. First downward pressure steel pipe; 9. Second downward pressure steel pipe; 10. Horizontal support pipe; 11. Longitudinal support pipe; 12. Nut; 13. Fastening plate; 14. Triangle plate; 15. Connecting rod; 16. Auxiliary branch rod; 17. Steel pipe ring; 18. Cross bar; 19. Diagonal rod. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] Example:

[0028] Reference Figure 1-3, including an aluminum base plate 1, the side end of the aluminum base plate 1 is fixedly connected to the side plate 2, the inner end of the side plate 2 is fixedly connected to the step plate 3, the surface of the step plate 3 is fixedly connected to the L-shaped plate 5, the internal thread of the L-shaped plate 5 is connected to the screw 6, the surface of the step plate 3 is threadedly connected to the first downward-pressed steel pipe 8 through the screw 6, the inside of the side plate 2 and at the lower end of the first downward-pressed steel pipe 8 is installed with a triangular plate 14, the internal thread of the triangular plate 14 is connected to the screw 6, the side end of the triangular plate 14 is fixedly connected to the connecting rod 15, the lower end of the side plate 2 is provided with a transverse support tube 10, the side end of the side plate 2 is provided with a plurality of steel bar grooves 7, and the surface of the step plate 3 is fixedly installed with a frame plate 4. The aluminum base plate 1 is the structural base plate of the aluminum formwork, and together with the side plates 2 on both sides, it forms the frame of the stairs. The step plate 3 can be assembled on the inner end of the side plate 2 according to the actual installation size between the stairs, and is fixed and welded by opening the steel bar groove 7. After the aluminum film plate stairs are assembled, they can be fastened and supported. The L-shaped plate 5 mounted on the surface of the step slab 3 provides a connection point for the screw rods 6. The screw rods 6 secure the first and second downward pressure steel pipes 8, 9 to the surface of the step slab 3, allowing them to lean against the surface of the step slab 3 along the slope of the staircase. The first and second downward pressure steel pipes 8, 9 press down on the step slab 3, enhancing the stability of the structure. The triangular plate 14 can be inserted into the grooves on the side ends of the side panels 2 and fixed to the lower ends of the first and second downward pressure steel pipes 8, 9 using the screw rods 6, simultaneously limiting the position of the first and second downward pressure steel pipes 8, 9 on both sides. Finally, the triangular plate 14 on the outer ends of the side panels 2 is further supported by the connecting rods 15 and auxiliary branch rods 16. The bottom of the aluminum base plate 1 is supported by multiple transverse support tubes 10, each of which is mounted with longitudinal support tubes 11 on the side ends to secure it to the ground. The frame plate 4 is used for filling with grout.

[0029] Reference Figure 1 and Figure 2 The top of the screw rod 6 is fixedly connected with a fastening plate 13, and the surface of the screw rod 6 is threadedly connected with a nut 12. The fastening plate 13 is convenient for construction workers to rotate and install the screw rod 6 during work.

[0030] Reference Figure 1 and Figure 2 A second downward-pressing steel pipe 9 is fixedly mounted on the surface of the step plate 3 and located at the side end of the first downward-pressing steel pipe 8. A triangular plate 14 is threadedly connected to the lower portion of the second downward-pressing steel pipe 9 via a screw 6. The first and second downward-pressing steel pipes 8, 9 are mounted on the surface of the aluminum formwork and connected and fixed via triangular plates 14 inscribed in the side panels 2. This provides multi-directional support and fixation for the entire aluminum film sheet, improving the stability of the device and preventing leakage during subsequent grouting.

[0031] Reference Figure 2The lower end of the connecting rod 15 is welded with an auxiliary branch rod 16. The auxiliary branch rod 16 is used to support the triangle plate 14 and can cooperate with the longitudinal support tube 11 to play the role of auxiliary support.

[0032] Reference Figure 1 and Figure 3 The surface of the horizontal support tube 10 is threadedly connected with a steel pipe ring 17, and the interior of the steel pipe ring 17 is fixedly connected with the longitudinal support tube 11. The multiple support tubes at the bottom of the aluminum membrane plate are threadedly connected by steel pipe rings 17 and bolts, which is convenient for assembly before construction.

[0033] Reference Figure 3 The bottom side end of the longitudinal support tube 11 is fixedly connected with a cross bar 18. The cross bar 18 can connect multiple longitudinal support tubes 11 of different heights to improve the stability of the device.

[0034] Reference Figure 3 The bottom of the side panel 2 is connected with an oblique rod 19. The oblique rod 19 is perpendicular to the aluminum bottom plate 1, and the bottom of the oblique rod 19 is obliquely inserted into the ground to provide auxiliary support and stabilize the angle.

[0035] The implementation principle of the embodiment of the fixing device of a closed staircase aluminum formwork in the present application is as follows: the bottom of the aluminum base plate 1 can be supported by a plurality of transverse support tubes 10, and the side ends of each transverse support tube 10 are installed with a longitudinal support tube 11 to be fixed to the ground. The multiple support tubes at the bottom of the aluminum film plate are threadedly connected by steel pipe rings 17 and bolts, which is convenient for assembly before construction. The crossbar 18 can connect multiple longitudinal support tubes 11 of different heights to improve the stability of the device. The angle between the diagonal rod 19 and the aluminum base plate 1 is vertical, and the bottom of the diagonal rod 19 is obliquely inserted into the ground, which can play an auxiliary support role and stabilize the angle. The step plate 3 can be assembled on the inner end of the side plate 2 according to the actual installation size between the stairs, and fixed and welded by opening a steel bar groove 7. After the aluminum film plate stairs are assembled, they can be fastened and supported. The L-shaped plate 5 mounted on the surface of the step plate 3 provides a connection location for the screw rod 6. The screw rod 6 secures the first and second downward pressure steel pipes 8, 9 to the surface of the step plate 3, allowing them to lean against the surface of the step plate 3 along the slope of the staircase. The first and second downward pressure steel pipes 8, 9 press down on the step plate 3, enhancing the stability of the structure. The triangular plate 14 can be inserted into the grooves on the side ends of the side plates 2 and fixed to the lower ends of the first and second downward pressure steel pipes 8, 9 using the screw rod 6, simultaneously limiting the position of the first and second downward pressure steel pipes 8, 9 on both sides. Finally, the triangular plate 14 on the outer ends of the side plates 2 is further supported by the connecting rod 15 and the auxiliary branch rod 16. The first and second downward pressure steel pipes 8, 9 are mounted on the surface of the aluminum formwork and connected and fixed via the triangular plate 14 connected to the side plates 2. This allows the aluminum film sheet to be supported and fixed in multiple directions, improving the stability of the device and preventing leakage during subsequent grouting. The device can improve the overall stability of the device and reduce material leakage during grouting by mutual downward pressure and fixation between the triangular plate 14 and the downward pressure steel pipe and the aluminum template.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A fixing device for a closed staircase aluminum formwork, comprising an aluminum bottom plate (1), characterized in that: The side end of the aluminum bottom plate (1) is fixedly connected to the side plate (2), the inner end of the side plate (2) is fixedly connected to the step plate (3), the surface of the step plate (3) is fixedly connected to the L-shaped plate (5), the internal thread of the L-shaped plate (5) is connected to the screw (6), the surface of the step plate (3) is threadedly connected to the first downward pressure steel pipe (8) through the screw (6), the interior of the side plate (2) and the lower end of the first downward pressure steel pipe (8) are installed with a triangular plate (14), the internal thread of the triangular plate (14) is connected to the screw (6), the side end of the triangular plate (14) is fixedly connected to a connecting rod (15), the lower end of the side plate (2) is provided with a transverse support tube (10), the side end of the side plate (2) is provided with a plurality of steel bar grooves (7), and the surface of the step plate (3) is fixedly installed with a frame plate (4).

2. A fixing device for a closed staircase aluminum formwork as claimed in claim 1, characterized in that: The top end of the screw rod (6) is fixedly connected to a fastening plate (13), and the surface of the screw rod (6) is threadedly connected to a nut (12).

3. The fixing device of a closed staircase aluminum formwork according to claim 1, characterized in that: A second downward pressing steel pipe (9) is fixedly installed on the surface of the step plate (3) and located at the side end of the first downward pressing steel pipe (8), and a triangular plate (14) is threadedly connected to the bottom of the second downward pressing steel pipe (9) through a screw rod (6).

4. The fixing device for a closed staircase aluminum formwork according to claim 1, characterized in that: An auxiliary branch pipe rod (16) is welded to the lower end of the connecting rod (15).

5. The fixing device for a closed staircase aluminum formwork according to claim 1, characterized in that: The surface of the transverse support tube (10) is threadedly connected with a steel tube ring (17), and the interior of the steel tube ring (17) is fixedly connected with a longitudinal support tube (11).

6. A fixing device for a closed staircase aluminum formwork as claimed in claim 5, characterized in that: The bottom side end of the longitudinal support tube (11) is fixedly connected with a cross bar (18).

7. The fixing device for a closed staircase aluminum formwork according to claim 1, characterized in that: The bottom of the side plate (2) is connected with an inclined rod (19).

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