{"id":6120,"date":"2021-09-09T11:02:35","date_gmt":"2021-09-09T03:02:35","guid":{"rendered":"https:\/\/www.wtauserver.com\/?p=6120"},"modified":"2025-06-04T17:13:25","modified_gmt":"2025-06-04T09:13:25","slug":"automatic-locking-device-for-gates","status":"publish","type":"post","link":"https:\/\/www.wtauserver.com\/en\/automatic-locking-device-for-gates\/","title":{"rendered":"Automatic gate locking device: Making water conservancy projects safer and smarter"},"content":{"rendered":"<h2>First, manually locking the gate is laborious and dangerous<\/h2>\n<p>Imagine this: In the dead of winter night, the gates of the hydropower station need to be locked urgently. A worker, wrapped in a thick cotton-padded coat and braving the bone-chilling wind, was struggling to move on the slippery gate platform. He is carrying the heavy I-beam on his shoulder, attempting to precisely insert it into the gate slot. The bone-chilling wind made him unable to stand steadily, and beneath his feet was the surging Heihe River. A moment's inattention could lead to both the person and the beam falling into the abyss.<\/p>\n<p>Such scenes used to be the norm in water conservancy projects.<\/p>\n<p>The locking of traditional gates is entirely accomplished by manual labor.<br \/>\n\u2013 <strong>High labor intensity<\/strong>A single locking beam weighs over a hundred pounds and requires the collaboration of multiple people to carry<br \/>\n\u2013 <strong>High operational risk<\/strong>The workers need to be here<strong>The slippery and narrow edge of the pier<\/strong>Complete precise positioning<br \/>\n\u2013 <strong>Inefficient<\/strong>A single locking operation can take up to half an hour, which may delay the rescue opportunity during the flood season<\/p>\n<p>An experienced worker at a hydropower station in Gansu Province recalled, \"In the past, I was most afraid of emergency repairs in the middle of the night during winter. My hands would freeze and I still had to align with millimeter-level slots. It was just like dancing on the tip of a knife.\" How many potential safety hazards are hidden in such a working state!<\/p>\n<p>&nbsp;<\/p>\n<h2>Ii. Automatic Locking device, the \"intelligent safety lock\" of the gate<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6729 size-full\" src=\"https:\/\/www.wtauserver.com\/wp-content\/uploads\/2021\/09\/wechat_2025-06-04_171156_841.webp\" alt=\"Automatic gate locking device\" width=\"768\" height=\"742\" srcset=\"https:\/\/www.wtauserver.com\/wp-content\/uploads\/2021\/09\/wechat_2025-06-04_171156_841.webp 768w, https:\/\/www.wtauserver.com\/wp-content\/uploads\/2021\/09\/wechat_2025-06-04_171156_841-300x290.webp 300w, https:\/\/www.wtauserver.com\/wp-content\/uploads\/2021\/09\/wechat_2025-06-04_171156_841-12x12.webp 12w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>In the summer of 2022, Longshou Hydropower Station saw a turning point. The technical team installed two sets at the accident gate of the water diversion tunnel<strong>Automatic locking device<\/strong>In combination with the radar water level gauge and sensor network, the\"<strong>Unattended locking<\/strong>\" During the first flood season test after the renovation, an astonishing scene occurred:<\/p>\n<p>When the water level exceeds the warning line, the alarm in the control room sounds. The duty officer clicked the mouse lightly and saw:<br \/>\nThe gate was smoothly lifted to a safe height<br \/>\n2. Side locking beams<strong>Synchronous extension<\/strong>Like a steel arm firmly supporting a hundred-ton gate<br \/>\n3. The monitoring screen displays in real time:<strong>The locking beam is in place and the load-bearing is normal<\/strong>\u201d<\/p>\n<p>The whole process took less than five minutes and the operator didn't even leave the control chair.<\/p>\n<p>This set<strong>Weite Technology Company<\/strong>The developed system holds mysteries:<br \/>\n\u2013 <strong>Millimeter-level accuracy<\/strong>It adopts multi-turn absolute encoders, with positioning accuracy comparable to that of a human hair<br \/>\n\u2013 <strong>Triple insurance<\/strong>Electrical limit + mechanical limit + torque limiter. The machine will automatically stop when stuck<br \/>\n\u2013 <strong>Remote control<\/strong>It transmits signals via industrial Ethernet and has extremely strong anti-interference ability<\/p>\n<p>\"Now the gate can 'find its position' by itself, with the locking error controlled within 3 millimeters. It's even more precise than the skills of an experienced master!\" \" The person in charge of the power station gave a thumbs-up. More crucially,<strong>The risk of manually climbing the piers has been completely eliminated<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<h2>Three or four innovative designs make the steel gates \"smart\"<\/h2>\n<p>Although the automatic locking device is small, it embodies the ingenuity of engineers inside. At present, the mainstream technologies are all doing their best:<\/p>\n<p><strong>Crank-slider type - as flexible as a mechanical arm<\/strong><br \/>\nThe patented device of a certain water conservancy design institute in Zhejiang Province is like installing a \"joint arm\" on the gate:<br \/>\n\u2013 <strong>Reducer<\/strong>Drive the short connecting rod to rotate<br \/>\n\u2013 <strong>Long connecting rod<\/strong>Convert circular motion into linear motion<br \/>\n\u2013 <strong>Locking beam<\/strong>Glide smoothly on the surface of the pier<\/p>\n<p>Just like controlling the movement of the slider by turning a crank, its structure is as simple as a children's toy, yet it can withstand a heavy load of thousands of tons. It is particularly suitable for the renovation of existing hydropower stations without damaging the original structure.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>2. Smart pin type - It's like a pin with eyes<\/strong><\/p>\n<p>The innovation of a certain water conservancy institute in Shandong is even more outstanding:<br \/>\n\u2013 \u5f53\u95f8\u95e8\u5347\u5230<strong>Specified height<\/strong>The chrome-plated pin shaft automatically inserts into the locking hole<br \/>\n\u2013 \u63a5\u8fd1\u4f20\u611f\u5668\u5b9e\u65f6<strong>Monitoring location<\/strong><br \/>\n\u2013 \u4e07\u4e00\u9519\u4f4d\u8d85\u5dee\uff0c\u7cfb\u7edf\u7acb\u5373<strong>Start the deviation correction program<\/strong><\/p>\n<p>\"It's even more meticulous than an experienced electrician,\" the on-site technician compared. \"The pin shaft's forward and backward movement path is equipped with a laser scale. It stops when encountering obstacles, which is much gentler than manual operation.\"<\/p>\n<p><strong>3. Hydraulic-driven type - Using the power of water to lock the water door<\/strong><br \/>\nThe latest patent is even more intelligent:<br \/>\n\u2013 \u5229\u7528<strong>The water flow impacts the blades.<\/strong>Generate power<br \/>\n\u2013 <strong>Float adjustment<\/strong>The device always maintains a draft depth<br \/>\n\u2013 \u5373\u4fbf\u65ad\u7535\u4e5f\u80fd<strong>Work normally<\/strong><\/p>\n<p>The pilot project on the Tao River in Gansu Province has proved that this kind<strong>Zero energy consumption design<\/strong>It performs particularly well during the flood season. The more acute the flood, the more firmly it is locked in.<\/p>\n<p>&nbsp;<\/p>\n<h2>Four. Intelligent control enables the gate to \"think\"<\/h2>\n<p>Automatic locking is just the beginning. The real change is here<strong>Intelligent control system<\/strong>. The renovation of the Gezhouba Erjiang Power Station is a model:<\/p>\n<p>On the 30-meter-high door machine<strong>More than 200 sensors<\/strong>Form a neural network. When the grab beam approaches the gate:<br \/>\n\u2013 <strong>Laser positioning instrument<\/strong>Scan the position of the door slot<br \/>\n\u2013 <strong>Pressure sensor<\/strong>Sense the changes in the tension of the steel wire rope<br \/>\n\u2013 <strong>AI algorithm<\/strong>Automatically correct the falling trajectory<\/p>\n<p>\"Before, four people needed to cooperate, but now one person just needs to click the mouse in the air-conditioned room.\" \" Engineer Zhang Hailong sighed. After the transformation, the efficiency has increased by 500%, and there is no longer a need for workers to operate blindly at a height of 10 meters.<\/p>\n<p>More cutting-edge technologies are on the way. In early 2025, the \"machine vision system\" developed by Huitu Technology equipped the gates with \"sharp eyes\" :<br \/>\n\u2013 <strong>HD camera<\/strong>Capture the state of water flow<br \/>\n\u2013 <strong>Convolutional neural network<\/strong>Analyze the risk of debris accumulation<br \/>\n\u2013 <strong>Automatically start the trash barrier net<\/strong>Intercept floating objects such as tree trunks in advance<\/p>\n<p>Just like equipping water conservancy projects with a smart brain, it shifts from \"passive response\" to \"active prevention and control\".<\/p>\n<p>&nbsp;<\/p>\n<h2>V. The future is here, and a new chapter of smart water conservancy awaits<\/h2>\n<p>From the Longshou Hydropower Station to the Gezhouba Dam, the evolution of automatic locking devices reflects the intelligentization process of China's water conservancy. The Weite technology engineer disclosed the key breakthrough points during the project summary:<br \/>\n\"We install the locking beam.<strong>Tactile nerve<\/strong>When the radar water level gauge indicates that the water filling is complete, the system automatically detects the water level pressure difference and only releases the lock after confirming safety. It's as if there are two invisible hands keeping watch.<\/p>\n<p>In the next five years, with<strong>Machine vision + Internet of Things<\/strong>With the popularization of technology, gate management will undergo more profound changes:<br \/>\n\u2013 <strong>Digital Twin system<\/strong>Real-time mirroring of the status of the physical gate<br \/>\n\u2013 <strong>Beidou Positioning<\/strong>The accuracy has been enhanced to the millimeter level<br \/>\n\u2013 <strong>Self-learning algorithm<\/strong>Predicting equipment failures has transformed maintenance from \"post-event repair\" to \"pre-event prevention\".<\/p>\n<p>Standing in the control room of Longshou Hydropower Station and looking through the glass window - the group of gates that once required more than ten people to operate now only has a girl calmly tapping the touch screen. Outside the window, the huge steel gate opens and closes quietly in the morning light, as natural and smooth as breathing.<\/p>\n<p>Behind this peaceful scene, countless automatic locking devices are silently guarding. They don't need flowers or applause; they just want to firmly hold up that sense of security when the stormy waves come.<\/p>","protected":false},"excerpt":{"rendered":"<p>1. Manually locking the gates is laborious and dangerous. Imagine this: in the dead of winter night, the gates of the hydropower station need to be urgently locked. A worker, wrapped in a thick cotton-padded jacket and braving the bone-chilling wind, was in the wet [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"class_list":["post-6120","post","type-post","status-publish","format-standard","hentry","category-technical-support"],"_links":{"self":[{"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/posts\/6120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/comments?post=6120"}],"version-history":[{"count":0,"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/posts\/6120\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/media?parent=6120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/categories?post=6120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wtauserver.com\/en\/wp-json\/wp\/v2\/tags?post=6120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}