Abstract: Innovation Channel China Construction Third Engineering Bureau’s Case Study on the Integration of Tripod Turnstiles and Swing Gates
Innovation Pass China Construction Third Engineering Bureau Tripod Turnstile and Swing Gate Combination Case Study
Project Products: Flexible Angled Tripod Turnstile, Bridge-type Angled Swing Gate
Project Background:

China Construction Third Engineering Bureau
China Construction Third Engineering Bureau, officially known as China Construction Third Engineering Bureau Group Co., Ltd., was established on December 29, 2003. It is a large-scale backbone enterprise in construction and installation with multiple functions and group-based operation. Its registered capital is RMB 300 million.
Its business scope covers general contracting, construction, consulting, construction technology development and transfer, machinery and equipment leasing, road and bridge construction, and the production and wholesale of commercial concrete.
The company’s main subsidiaries include: China Construction Third Engineering Bureau First, Second, and Third Construction Engineering Co., Ltd., as well as general contracting companies, infrastructure companies, Group Company (Beijing), and Group Company (Shanghai), among other non-legal entities.
Project Analysis:
Tripod Turnstile Case Study

Due to site limitations, an intelligent pedestrian access system was required at the main gate, accommodating pedestrian and small motor vehicle access. Worker entrances and exits utilize the flexible angled tripod turnstile, while small vehicle entrances and exits employ bridge-type angled swing gates.
The flexible angled tripod turnstile features a Ø38 diameter arm, a length of 510mm, and a gate height of 1000mm, allowing single-person access via card swipe authorization. The bridge-type angled swing gate uses a single 545mm swing arm, a 1140mm spacing between passageways, and a gate height of 1200mm, also allowing single-person and small vehicle access via card swipe authorization. This design facilitates site access control and management, enabling entry and exit management and monitoring for workers and small vehicles, maintaining site security, and monitoring for accidents.
Project Product Functions:
I. Flexible Angled Tripod Turnstile
- Rotation Function: Receives legitimate signals, gently pushes to assist rotation, ensuring smooth and impact-free operation;
- Alarm Function: Automatically issues an alarm when unauthorized passage or gate breaching occurs;
- Reverse Rotation Function: If reverse rotation occurs during passage, the gate arm automatically locks and an alarm sounds. Passage resumes automatically after the reverse force disappears;
- Breach Function: When unauthorized passage or gate breaching occurs, the gate arm automatically rotates to the corresponding angle and locks, achieving a humane anti-injury measure. It automatically resets after the external force disappears;
- Unattended Operation: Automatically lowers the gate arm when power is off, and automatically raises it when power is on;
- Fast and Silent Operation: Electric assistance, zero mechanical wear. Approximately 45-60 people/minute
- Anti-Tailgating Function: With a single operator rotating the gate arm 120 degrees, if tailgating occurs, the flexible angled tripod turnstile senses and automatically alarms or locks.
II. Bridge-Type Angled Swing Gate
- Compatible with various card readers, operating upon receiving relay switch signals;
- Can be connected to external switches, buttons, or remote controls for convenient entry and exit;
- Automatically closes after the swing arm opens, with a delay time adjustable as needed;
- Mechanical anti-pinch: Based on the gate’s mechanical design, a mechanical anti-pinch function is implemented. When a person or object obstructs the swing arm’s movement, the bridge-type angled swing gate system automatically detects and stops operation, minimizing the swing arm’s swing force and preventing injury to people or objects;
- Other extended functions can be customized.