[ Pacific Security Network News ]
In the year of 2015, we win the first prize of National Science and Technology Progress Award by the program of [The innovative research & development, and application of steel pipes used in 600 ℃ Ultra-super critical coal power generation unit".
Adjusting the closing force of the door closer is also adjusting the closing speed. When the power is large, the speed is fast, and when the power is small, the closing speed of the door closer is slow. The door closer adjusts the closing speed by independently controlling the closing speed of the two-stage door closer through two hydraulic valves for full-stage hydraulic control.
How to adjust the closing force of the door closer Step 1: The door closer can only be installed on the upper part of the door leaf near the hinge side. There is no end of the speed adjusting screw on the body, facing the hinge. Otherwise, the door can not be opened. If it is forcibly opened, the door closer, The door leaf and the upper door frame, that is, the groove, will be destroyed. Fix the body to the door leaf with four screws, then put the lever into the upper end of the gear shaft, and install the cap on the other end and tighten the fastening screw.
How to adjust the closing force of the door closer Step 2: Install the connecting rod and fix the connecting rod on the door frame with two screws. The hand-held link is at right angles to the upper door frame. Loosen the lock nut, adjust the connecting rod to the appropriate length, and gently move the lever so that the lever pin just inserts into the hole at the end of the connecting rod, and check that the connecting rod is at right angles to the upper door frame. Place the washer and tighten with a semi-circular head screw. Lock nut, installation is complete.
How to adjust the closing force of the door closer Step 3: Adjust the closing speed The door closing speed has been adjusted. If you need to change the speed, turn the speed adjusting screw as shown.
(2) Notes
A exterior door closer is not suitable for two-way opening.
The B speed adjustment screw controls the switching speed of the door. Rotate clockwise to slow and counterclockwise to rotate faster.
Antifreeze oil should be added after 1 year of C door closer use. When refueling, screw out the oil hole screw to refuel. After the oil is full, tighten the screw.
D The remaining screws and sealing parts are not free to be screwed to prevent oil leakage.
2. Inline door closer
(1) Construction: The in-line door top spring is composed of a hydraulic buffer spring mounted on the door leaf, a slide rail and a slider mounted on the door frame, and a link. Since the in-line door closer is installed in the slot of the door leaf and the door frame, the appearance of the door is not affected when the door is closed. It is suitable for use on the doors of high-end hotel rooms.
(2) Principle: The hydraulic buffer spring gives the link a recovery torque, which causes the link to rotate away from the hinge, thereby driving the slider to move away from the hinge at the same time in the slide to achieve the purpose of closing the door. There is a temporary locking card at the front end of the slide. When the door is opened to the right angle position, the slider moves to the side close to the hinge, and the locking card snaps into the tongue groove at the front end of the slider to temporarily lock the door in this position.
(3) Installation points
A. Before the door frame and the fan are in place, the bottom line should be cut at the top of the door leaf and the door frame.
B Then, the hydraulic buffer spring is embedded in the groove before the door and window are installed, and the slide is screwed into the slot of the starter frame.
C After the door frame and the fan are fixed and fixed, fix the link to the spring shaft with a nut.
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At Chengde, we take quality seriously. This philosophy carries through every aspect of our operation. That is why we maintain a fully documented/fully certified Quality Management System which complies with the requirements of ISO 9001. This quality system encompasses every phase of our business. Chengde has established its complete quality system as per ISO 9001 since 2006 and upgrade to ISO9001 :2008 at a later stage.
Our commitment to the highest industry standards in customer satisfaction remains our primary purpose with an emphasis on continual improvement in both production quality and support service. Chengde rises above the competition in delivering to you a quality/fully certified product on schedule.In the year of 2015, we win the first prize of National Science and Technology Progress Award by the program of [The innovative research & development, and application of steel pipes used in 600 ℃ Ultra-super critical coal power generation unit".
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