Emergency stop switch in case of emergency for various reasons during the operation of the cage, the driver can press the emergency stop switch at any time to stop the cage.
4.
The construction elevator is usually used with the tower crane on the construction site.
Buffer spring the buffer spring is installed on the spring seat connected with the foundation frame, so as to reduce the impact of the cage when the cage falls, and ensure that the cage and counterweight fall into flexible contact when landing, so as to reduce the impact of the cage and counterweight when landing.
1.
Safety hook safety hook is a hook block set to prevent the cage from reaching the preset position, the upper limit stopper and the upper limit stopper cannot act in time due to various reasons, and the cage continues to run upward, which will cause the cage to impact the top surface of the guide rail frame to overturn and fall, And the last safety device.
The Governor shall be subject to performance test within the specified period.
After the action, the cage can only be restarted by manual reset.
The limit device is composed of limit bumps and limit switches.
This method takes time, high cost, non environmental protection and non reuse.
This platform is generally used with the protective shed of the construction elevator.
Below are some details of HanKun industrial protective shed.
In addition, floor calling device and floor leveling device can also be added.
Generally, the airborne weight of construction lifting is 1-10 tons and the operation speed is 1-60m / min.
In the product series of HanKun industry, there are four close partners of the elevator, two downstairs and two upstairs, who have been escorting the elevator for many years, Today’s appearance is the two downstairs.
It is mainly used in various types of urban high-rise and super high-rise buildings.
The limit stop is non automatic reset type.
The size can be flexibly customized according to the size of the elevator and the actual construction.
The steel platform of construction elevator has a certain height difference between the construction elevator and the ground, so it is inconvenient for construction personnel, especially construction materials, to enter the elevator, and there are certain potential safety hazards.
3.
Its unique box structure allows construction personnel to ride comfortably and safely.
Usually, there are two or three conical coil springs or four cylindrical coil springs on the underframe corresponding to each lifting cage.
Construction lift is mainly used for internal and external decoration of high-rise buildings, construction of bridges, chimneys and other buildings.
It is mainly used to prevent the strike accident caused by falling objects, and is often connected with the safety passage on the construction site.
2.
They will appear in another article.
The upper and lower limit devices are installed on the cage and guide rail frame to prevent the cage from exceeding the required stop position when it goes up and down, or accidents caused by the driver’s misoperation and electrical failure.
The two partners have a tacit understanding to ensure the safety of operators on the ground and the smooth lift off of the construction lift.
There are two kinds of buffer springs: conical coil spring and cylindrical coil spring.
6.
The steel platform of construction elevator produced by HanKun industry can greatly improve the construction efficiency, fast installation, more convenient transfer and use, beautiful and atmospheric.
Construction elevator protective shed, reinforcement processing shed and safety passage are essentially the same product.
Frequency conversion device and PLC control module can also be added according to actual needs.
(overtravel refers to the safety distance specified between the limit switch and the limit switch) 5.
There are many kinds of construction elevators, which can be divided into two types according to the operation mode: no counterweight and counterweight; According to the control mode, it is divided into manual control type and automatic control type.
The one-way speed governor can only speed limit along the downward direction of the cage, and the two-way speed governor can speed limit along the up and down directions of the cage.
The rising lift will immediately see its other two close partners.
The emergency stop and quick closing must be a non self resetting safety device, which is generally installed on the top of the cage.
It is divided into one-way and two-way.
Because of such building height, it is very difficult to complete the operation with well frame and gantry.
7.
Construction elevator is also called construction elevator for construction, and can also be called outdoor elevator, site lifting cage, etc.
They have three names because they protect three states of people, namely elevator operation, reinforcement processing operation (or other operations requiring high-altitude protection) and site walking.
The highest limit device on the top of the cage can prevent roof falling; The lowest limit device at the bottom of the hanging cage can stop the floor accurately and belongs to the automatic reset type.
The speed governor is a safety device set to prevent the cage of construction elevator from speeding or falling.
It can make the safety trench on the guide rail frame when the lifting cage rises to the top of the rail frame safety protection facilities to prevent the lifting cage from derailing and ensure that the lifting cage will not overturn and fall.
However, there has been no better solution, so the vast majority of construction sites can only adopt this method for a long time.
Upper and lower limit limiters the upper and lower limit limiters can cut off the power supply in time to stop the cage when the upper and lower limit limiters do not work and the cage runs beyond the limit switch and overtravel.
Cage door and protective fence door interlock device the cage door and protective fence door of the construction elevator are equipped with electrical interlocking switches, which can effectively prevent personnel from falling materials caused by starting operation without closing the cage or protective fence door.
Construction elevator protective shed the construction elevator protective shed on the construction site is essentially a customized reinforcement processing shed, which is customized according to the layout of steel platform and construction elevator.
Here is a group photo of the construction elevator protective shed and the steel platform.
The limit limiter is installed on the lifting cage and guide rail frame.
The overall steel structure is firmly welded, safe and stable, and the assembly design is fast, time-saving and labor-saving.
Although the construction elevator itself has designed detailed safety measures, because it involves high-altitude operation and personnel movement, protective measures other than the elevator itself are also very important.
Therefore, many construction sites use concrete masonry platforms to fill the height difference.
Safety device of construction elevator: 1.
See you next time…
The operation can be started only after the cage door and protective fence are completely closed.
2.
Later, the steel structure platform appeared, which can better solve the problem.
