What is a Revolving Door?

The revolving door combines the advantages of various doors, and its spacious and high-style design creates a luxurious atmosphere, which is the finishing touch of the building. Revolving door enhances wind resistance and reduces air conditioning energy consumption, making it the best choice to isolate airflow and save energy.

Revolving door

(Building entrance)

The revolving door combines the advantages of various doors, and its spacious and high-style design creates a luxurious atmosphere, which is the finishing touch of the building. Revolving door enhances wind resistance and reduces air conditioning energy consumption, making it the best choice to isolate airflow and save energy.

When designing

Three-wing revolving door structure

The three-wing revolving door is composed of three major parts, namely: a fixed frame, a central axis assembly and a revolving assembly. Each component is described in detail below.

(1) Fixed frame.

The fixed frame is composed of an upper supporting component and a column, upper and lower docks, and a fixed hanging plate. The upper support assembly is further formed by linking the head, multiple beams, multiple support plates and brackets with screws and nuts. Columns and the foundation of the fixed frame when docking up and down the dock. Curved glass is also installed between the upper and lower docks and the uprights. The ceiling board is mounted on the fixed frame.

(2) Rotate the component.

The rotating component consists of a door closer, a showcase, a rotating ceiling and a door component. The swivel assembly is used to open and close the door.

(3) Central shaft assembly.

The central axis component is a drive system for an automatic revolving door, and is a drive mechanism for starting and closing the automatic door under the control of an electronic control system. It consists of a reduction motor and a drive mechanism.

The design history of the mechanical structure of the three-wing automatic revolving door and the four-wing automatic revolving door are the same, and the main structural composition is also the same, but the number of door components is different and the shape of the exhibition box is different. Introduction, only discusses the structure of the four-wing automatic revolving door in detail.

Four-wing revolving door structure

The four-wing revolving door is composed of three major parts, namely: a fixed frame, a central axis assembly and a rotating assembly. Each component is described in detail below.

(1) Fixed frame.

The fixed frame of the four-wing revolving door is the frame of the revolving door. It is a component that supports the full load of the bearings on the revolving door. The fixed frame includes two components: one is the upper support component; the other is the pillar and the upper and lower docks and fixed ceiling components .

The main hand components are two horizontal I-beams and two longitudinal I-beams on the four columns at the entrance and exit of the door. The remaining beams are connected to these four I-beams. Smaller, using aluminum profiles. The beam frame is connected to the I-beam with screws and the bracket is connected to the cap head. In this way, the I-beam, beam frame and cap head are connected to form a very rigid truss system, which has greater strength and stiffness, and is connected to six columns, which can withstand various loads of the revolving door.

Six columns are evenly distributed on the circumference, and the angle between each two columns is 45 °. In order to connect with the upper dock, that is, the cap head, the size of the upper opening of the column must meet the accuracy requirements. There are a total of four cap heads, which are fixed with screws on both sides of the column with tensioning blocks and brackets.

The tension block and the bracket are aluminum profiles, and the grooves and the aluminum grooves of the hat head have been designed to be able to bite into each other. Therefore, the assembly is convenient. As long as the tension block and the bracket are fixed to the column with screws, the cap head is linked to the column, and the glass trough and the lower dock and the glass of the curved wall are installed in the slot of the column. There is a rubber sealing strip for sealing between the glass and the column groove. Rubber strips are used for sealing between two glasses.

The grooved aluminum profile with a fixed outer diameter is fixed, the grooved aluminum profile is fixed on the curved glass groove with screws, and the inner diameter of the fixed ceiling is supported on the hanging ring. The hanging ring is fixed on the fixed frame with bolts, and the fixed ceiling is divided into 12 parts. In order to increase the rigidity, aluminum grooves are added at the flanging, T-shaped aluminum is added in the middle, and the ceiling plate is processed by aluminum-plastic plate.

(2) Rotating components.

The rotating assembly consists of the following components: door closer, exhibition box frame and rotating ceiling, exhibition box, door assembly.

In addition to the above-mentioned components, there are a base, a bearing, and a lower support shaft. The weight load of the revolving door is added to the base and the lower support shaft, and they bear large radial and axial loads. Therefore, the bearings use tapered ball bearings. The base uses 4 expansion bolts to foresee the level. The ground must maintain a good level. After the foundation is installed, the verticality of the bearing hole must be ensured, and the concentricity of the circle formed by the bearing hole 110mm and the column must be guaranteed.

The rotating frame is composed of a cross frame and connecting columns and a rotating ceiling. There are two upper and lower cross frames, which are welded from 40mm × 60mm square tubes and welded with a 10mm thick steel plate in the center. They are used to connect the lower support shaft and the upper main shaft. The theme of the door exhibition box frame is also the main body of the revolving door rotating assembly. The ceiling board is divided into four pieces and processed from aluminum-plastic board.

The exhibition box is completed on the basis of the exhibition box frame, and the decorative pillars and aluminum grooves are added to the connecting columns. In this way, the steel pipes of the exhibition frame cannot be seen outside and inside the exhibition box. The four side walls of the exhibition box are composed of glass troughs, glass and the upper and lower docks of the exhibition windows. The glass is embedded in the glass trough and the grooves on the upper and lower docks of the exhibition window. It is sealed and fixed with rubber strips. The exhibition windows on each side are connected with unequal aluminum corners and screw ceilings. In order to load the exhibits, the side display windows of the exhibition box are interactive, fixed with door hinges and door covers, and the movable display windows can be locked with locks.

There are three layers of aluminum-plastic panels in the exhibition box, which are the ceiling and floor of the exhibition box. The aluminum-plastic panels are fixed on the exhibition box frame.

An important component of the door component type revolving door. The door leaf is composed of a door upper dock, a door lower dock, a door brush seat, and a glass window. They are all equipped with brushes, and the dock under the door leaf is also equipped with anti-hard bars, and the anti-bump bars are rubber bars to prevent injuries. The glass clamp is for easy installation of the glass, and the gap between the glass and the aluminum profile of the door leaf is sealed by a rubber ring seal.

The door leaf connector is used to link the horizontal and vertical frames of the door leaf. The door leaf connector also connects the door leaf to the hinge of the door closer. Here the connection requires re-strength and rigidity to meet the requirements, reliable work, and the upper connector is used to connect the horizontal and vertical frames of the door leaf.

(3) Central shaft assembly.

The main part of the central shaft assembly is the drive system of the electric slip ring assembly and the revolving door. The drive system is mainly composed of the following parts and components: reducer motor, chain, small sprocket, main sprocket, bearing and bearing seat, center shaft 3. Tighten the nut and main floor.