Hydraulic pressure is a kind of transmission mode. The hydraulic transmission uses liquid as the working medium and uses the pressure energy of the liquid to transmit power. A complete hydraulic system consists of five parts, namely the energy device, the actuator, the control regulator, the auxiliary device, and the liquid medium. The actuators of the hydraulic system (cylinders and hydraulic motors) are used to convert the pressure energy of the liquid into mechanical energy to achieve the desired linear reciprocating or swiveling motion. The hydraulic pressure is widely used in industrial and civil industries due to its large transmission power, easy transmission and configuration.
The hydraulic rising bollard is formed by the vane pump to form a certain pressure. The oil filter, the explosion-proof electromagnetic reversing valve, the throttle valve, the hydraulic control check valve and the balance valve enter the lower end of the hydraulic cylinder, so that the piston of the hydraulic cylinder is upward. When moving and lifting weights, the upper end of the hydraulic cylinder returns to the tank through the explosion-proof electromagnetic reversing valve, and its rated pressure passes through the relief valve. Adjust the reading of the pressure gauge with a pressure gauge.
The piston of the cylinder moves downwards (both heavy objects drop). The hydraulic oil enters the upper end of the liquid cylinder through the explosion-proof electromagnetic reversing valve, and the oil returning to the fuel tank is returned to the fuel tank through the balance valve, the hydraulic control check valve, the throttle valve and the explosion-proof electromagnetic reversing valve. In order to make the weight drop smoothly, the brake is safe and reliable, and a balancing valve is arranged on the oil returning road to balance the circuit and maintain the pressure so that the falling speed is not changed by the heavy object, and the flow rate is adjusted by the throttle valve to control the lifting speed. In order to make the brake safe and reliable, prevent accidents, increase the hydraulic control check valve, that is, the hydraulic lock, to ensure safe self-locking when the hydraulic line accidentally bursts.
The role of hydraulic rising bollard:
The market application of hydraulic rising bollard is mainly divided into three types: urban beauty, channel control and anti-terrorism interception. For different demand characteristics, the combination of products and specific terminals is more reasonable and practical.
1) Urban beauty
The basis of urban aesthetics is the layout of urban construction and the improvement of people's moral standards. The emergence and application of hydraulic rising bollard is based on the comprehensive consideration of humanization, safety and urban aesthetic layout. Hydraulic rising bollard can be used as an auxiliary accessory for urban construction. In addition to its own regional definition, channel control and interception functions, it also adds to the beauty of urban construction and becomes a beautiful landscape in the city.
2) Channel control
As an important part of urban construction, the application value of hydraulic rising bollard has been upgraded from channel division, urban aesthetics and warning function to channel control. At present, it has been integrated into all aspects of life in European countries. The application of hydraulic rising bollard plays an important role in the regulation of the city's passage. It not only can effectively control the direction and route of the vehicle, but also manages and controls the traffic of each entrance and exit, greatly reducing the cost of manpower input and guaranteeing. The stability of social public safety, the use of scientific and modular rising bollard in urban traffic makes the channel control system more standardized and effective.
3) Anti-terrorism interception
Hydraulic rising bollard can play a good role in the face of emergencies such as terrorist attacks and daily high security controls, especially for national high-security sites such as government, nuclear power plants, military, airports, prisons, oil depots, hydraulic rising bollard It can effectively manage and block the mandatory destructive power of key areas in key areas, so as to minimize property losses and personal safety.