Reinforced concrete door leaf platform

Abstract

The utility model discloses a reinforced concrete door leaf platform, which relates to the technical field of door leaf manufacture and comprises a platform panel, elevators are fixedly mounted at four corners of the bottom of the platform panel respectively, and a speed reducer and a three-phase asynchronous motor are fixedly connected to the center of the bottom of the platform panel. An input shaft of the speed reducer is fixedly connected with an output shaft of the three-phase asynchronous motor, the front side and the rear side of the output shaft of the speed reducer are each fixedly connected with a transmission shaft, the tail ends of the transmission shafts are connected with a commutator, and the commutator is fixedly connected to the bottom of the platform panel. A connecting rod is connected between the reverser and each of the left and right adjacent elevators; and a plurality of positioning mechanisms are mounted at the bottom of the platform panel. The prefabricated door leaf can be horizontally jacked up through the four lifters, then the purpose of horizontal demolding of the prefabricated door leaf is achieved, damage to the corners of the concrete prefabricated door leaf is avoided, the demolding work efficiency is improved, and use is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of door manufacturing technology, and in particular to a reinforced concrete door platform. Background Technology

[0002] Reinforced concrete doors are in extremely high demand in civil defense projects, dominating the number of doors in a single civil defense basement. Doors designed by the Ministry of Construction require the installation of sealing strips on the surface, with pre-cast sealing strip grooves in the concrete surface; therefore, the production of this type of door requires a specialized platform.

[0003] However, because the contact surface between the concrete and the template is not a flat surface, demolding is quite difficult. Existing processes use methods such as pry bars and cranes to forcibly lift the precast concrete components, which can easily damage the edges and corners of the components and are inefficient.

[0004] To address the aforementioned problems, this application proposes a reinforced concrete door panel platform. Utility Model Content

[0005] This utility model provides a reinforced concrete door panel platform to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a reinforced concrete door panel platform, including a platform panel. A lift is fixedly installed at each of the four corners of the bottom of the platform panel. A reducer and a three-phase asynchronous motor are fixedly connected at the center of the bottom of the platform panel. The input shaft of the reducer is fixedly connected to the output shaft of the three-phase asynchronous motor. A drive shaft is fixedly connected to the front and rear sides of the output shaft of the reducer. A commutator is connected to the end of the drive shaft. The commutator is fixedly connected to the bottom of the platform panel. A connecting rod is connected between the commutator and two adjacent lifts on the left and right sides. Multiple positioning mechanisms are installed at the bottom of the platform panel.

[0007] Preferably, the positioning mechanism includes a positioning claw and a cylinder. Both the positioning claw and the cylinder are movably connected to the bottom of the platform panel via a hinge. The positioning claw passes through the platform panel and extends to the top of the platform panel. The end of the cylinder piston rod is movably connected to the bottom of the positioning claw via a hinge.

[0008] Preferably, the top of the platform panel has multiple positioning claw protrusion holes and multiple lifting machine protrusion holes, with the positioning claws passing through the positioning claw protrusion holes and the lifting machines passing through the lifting machine protrusion holes.

[0009] Preferably, the top of the platform panel is fixedly connected with a shaped steel bar and a shaped steel plate, the shaped steel plate is located inside the shaped steel bar, and the shaped steel bar and the shaped steel plate are located between multiple positioning claws and multiple lifting machines.

[0010] Compared with related technologies, the reinforced concrete door platform provided by this utility model has the following beneficial effects:

[0011] When precasting reinforced concrete door panels on the platform panel, the precast door panels can be positioned by positioning claws in multiple positioning mechanisms. When demolding after precasting, the precast door panels can be horizontally lifted by four lifters evenly distributed at the four corners of the bottom of the precast door panels, thereby achieving the purpose of horizontal demolding of the precast door panels. This not only avoids damage to the edges and corners of the precast concrete door panels, but also improves the demolding efficiency and is very convenient to use. Attached Figure Description

[0012] Figure 1 This is a top perspective view of a reinforced concrete door panel platform proposed in this utility model;

[0013] Figure 2 This is a front perspective view of a reinforced concrete door platform proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the platform panel structure of a reinforced concrete door leaf platform proposed in this utility model;

[0015] Figure 4 This is a schematic diagram of the reinforced concrete door leaf casting and forming display structure of a reinforced concrete door leaf platform proposed in this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of a reinforced concrete door panel platform proposed in this utility model, which is lifted and demolded after the reinforced concrete door panel is cast and formed.

[0017] The following are the labels in the diagram: 1. Platform panel, 2. Positioning claw, 3. Cylinder, 4. Reversing gear, 5. Drive shaft, 6. Connecting rod, 7. Reducer, 8. Three-phase asynchronous motor, 9. Lift, 10. Molding steel bar, 11. Molding steel plate, 12. Positioning claw extension hole, 13. Lift extension hole. Detailed Implementation

[0018] Implementation examples, by Figure 1-5The present invention includes a platform panel 1, with a lift 9 fixedly installed at each of the four corners of the bottom of the platform panel 1. A reducer 7 and a three-phase asynchronous motor 8 are fixedly connected to the center of the bottom of the platform panel 1. The input shaft of the reducer 7 is fixedly connected to the output shaft of the three-phase asynchronous motor 8. A transmission shaft 5 is fixedly connected to the front and rear sides of the output shaft of the reducer 7. A commutator 4 is connected to the end of the transmission shaft 5. The commutator 4 is fixedly connected to the bottom of the platform panel 1. A connecting rod 6 is connected between the commutator 4 and each of the two adjacent lifts 9 on the left and right. Multiple positioning mechanisms are installed at the bottom of the platform panel 1. When driven by the three-phase asynchronous motor 8 and the reducer, the transmission shaft 5, the commutator 4 and the connecting rod 6 all serve as transmission components to synchronously drive the four lifts 9 at the same time, thereby achieving the purpose of horizontally lifting and demolding the prefabricated door leaf.

[0019] The positioning mechanism includes positioning claws 2 and cylinders 3. Both positioning claws 2 and cylinders 3 are movably connected to the bottom of the platform panel 1 via hinges. The positioning claws 2 penetrate the platform panel 1 and extend to the top of the platform panel 1. The piston rod end of the cylinder 3 is movably connected to the bottom of the positioning claws 2 via hinges. The positioning mechanism can play a positioning role when casting precast door panels. When demolding, multiple positioning claws 2 only need to be unfolded. There are a total of eight positioning mechanisms, with two set on each of the four sides of the platform panel 1, so that the precast door panels can be fully clamped and positioned. When the cylinder 3 pulls the bottom of the positioning claws 2, the top of the positioning claws 2 will unfold and release the clamping of the precast door panels. Conversely, when the cylinder 3 pushes the bottom of the positioning claws 2, the positioning claws 2 will close and clamp the precast door panels for positioning.

[0020] The top of the platform panel 1 has multiple positioning claw extension holes 12 and multiple elevator extension holes 13. The positioning claw 2 passes through the positioning claw extension hole 12, and the elevator 9 passes through the elevator extension hole 13. The positioning claw extension hole 12 facilitates the extension and operation of the positioning claw 2, while the elevator extension hole 13 facilitates the elevator 9 to pass through the platform panel 1 when it lifts the prefabricated door leaf, thus avoiding interference between the platform panel 1 and the elevator 9.

[0021] The top of the platform panel 1 is fixedly connected with a shaped steel strip 10 and a shaped steel plate 11. The shaped steel plate 11 is located inside the shaped steel strip 10. Both the shaped steel strip 10 and the shaped steel plate 11 are located between multiple positioning claws 2 and multiple lifting machines 9. The shaped steel strip 10 and the shaped steel plate 11 can be shaped during the prefabrication of reinforced concrete door panels.

[0022] Working principle:

[0023] When precasting reinforced concrete door panels on the top of platform panel 1, shaping steel bars 10 and shaping steel plates 11 will shape the precast door panels, and positioning claws 2 in multiple positioning mechanisms will clamp around the precast door panels to position them. After the precast pouring is completed, when it is necessary to demold the precast door panels, the three-phase asynchronous motor 8 can be started, and then the speed reduction of the reducer 7, and then the transmission of the drive shaft 5, commutator 4 and connecting rod 6 will drive four lifting machines 9. The lifting machines 9 will pass through the lifting machine extension hole 13 and press against the precast door panels on the top of platform panel 1 and lift them up smoothly, thereby achieving the purpose of horizontal demolding of the precast door panels.

Claims

1. A reinforced concrete door leaf platform comprising a platform panel (1), characterized in that: The bottom four corners of the platform panel (1) are respectively fixedly installed with an elevator (9), the bottom center of the platform panel (1) is fixedly connected with a speed reducer (7) and a three-phase asynchronous motor (8), the input shaft of the speed reducer (7) is fixedly connected with the output shaft of the three-phase asynchronous motor (8), the output shaft of the speed reducer (7) is fixedly connected with a transmission shaft (5) on the front and back sides, the transmission shaft (5) is linked with a commutator (4) at the end, the commutator (4) is fixedly connected to the bottom of the platform panel (1), the commutator (4) and the left and right adjacent two elevators (9) are respectively connected with a connecting rod (6), and the bottom of the platform panel (1) is provided with a plurality of positioning mechanisms.

2. A reinforced concrete door leaf platform according to claim 1, characterized in that The positioning mechanism comprises a positioning claw (2) and a cylinder (3), the positioning claw (2) and the cylinder (3) are movably connected to the bottom of the platform panel (1) through hinges, and the positioning claw (2) penetrates through the platform panel (1) and extends to the top of the platform panel (1), and the piston rod of the cylinder (3) is movably connected with the bottom of the positioning claw (2) through a hinge.

3. A reinforced concrete door leaf platform according to claim 1, characterized in that A plurality of positioning claw extension holes (12) and a plurality of elevator extension holes (13) are formed in the top of the platform panel (1), the positioning claw (2) penetrates through the positioning claw extension hole (12), and the elevator (9) penetrates through the elevator extension hole (13).

4. A reinforced concrete door leaf platform according to claim 1, characterized in that The top of the platform panel (1) is fixedly connected with a shaped steel bar (10) and a shaped steel plate (11), the shaped steel plate (11) is located on the inner side of the shaped steel bar (10), and the shaped steel bar (10) and the shaped steel plate (11) are located between the plurality of positioning claws (2) and the plurality of elevators (9).

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