On-load telescopic mechanism and crane
The utility model relates to an on-load telescopic mechanism and a crane, and the on-load telescopic mechanism comprises a reversing valve which comprises an inlet for introducing hydraulic fluid, an outlet for discharging the hydraulic fluid, a first working port and a second working port; the bala...
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| creator | LI CHAO ZHANG YONGLIANG YU CHUANYU IM IN-MI SONG JIANJUN CHEN ZONGHE |
| description | The utility model relates to an on-load telescopic mechanism and a crane, and the on-load telescopic mechanism comprises a reversing valve which comprises an inlet for introducing hydraulic fluid, an outlet for discharging the hydraulic fluid, a first working port and a second working port; the balance valve comprises a first fluid port communicated with the first working port, a balance valve control fluid port and a second fluid port, and the balance valve control fluid port is configured to introduce hydraulic fluid to enable the balance valve to be switched to the second state; the hydraulic cylinder comprises a cylinder body, a piston rod movably arranged in the cylinder body, an extension cavity for introducing hydraulic fluid pushing and pressing the piston rod towards the outside of the cylinder body and a retraction cavity for introducing hydraulic fluid pushing and pressing the piston rod towards the inside of the cylinder body, the extension cavity is communicated with the second fluid port of the |
| format | Patent |
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the balance valve comprises a first fluid port communicated with the first working port, a balance valve control fluid port and a second fluid port, and the balance valve control fluid port is configured to introduce hydraulic fluid to enable the balance valve to be switched to the second state; the hydraulic cylinder comprises a cylinder body, a piston rod movably arranged in the cylinder body, an extension cavity for introducing hydraulic fluid pushing and pressing the piston rod towards the outside of the cylinder body and a retraction cavity for introducing hydraulic fluid pushing and pressing the piston rod towards the inside of the cylinder body, the extension cavity is communicated with the second fluid port of the</description><language>chi ; eng</language><subject>BLASTING ; CRANES ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HAULING ; HEATING ; HOISTING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; 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ZHANG YONGLIANG ; YU CHUANYU ; IM IN-MI ; SONG JIANJUN ; CHEN ZONGHE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN217894972UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>BLASTING</topic><topic>CRANES</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>HAULING</topic><topic>HEATING</topic><topic>HOISTING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LIFTING</topic><topic>LIGHTING</topic><topic>LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>LI CHAO</creatorcontrib><creatorcontrib>ZHANG YONGLIANG</creatorcontrib><creatorcontrib>YU CHUANYU</creatorcontrib><creatorcontrib>IM IN-MI</creatorcontrib><creatorcontrib>SONG JIANJUN</creatorcontrib><creatorcontrib>CHEN ZONGHE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI CHAO</au><au>ZHANG YONGLIANG</au><au>YU CHUANYU</au><au>IM IN-MI</au><au>SONG JIANJUN</au><au>CHEN ZONGHE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>On-load telescopic mechanism and crane</title><date>2022-11-25</date><risdate>2022</risdate><abstract>The utility model relates to an on-load telescopic mechanism and a crane, and the on-load telescopic mechanism comprises a reversing valve which comprises an inlet for introducing hydraulic fluid, an outlet for discharging the hydraulic fluid, a first working port and a second working port; the balance valve comprises a first fluid port communicated with the first working port, a balance valve control fluid port and a second fluid port, and the balance valve control fluid port is configured to introduce hydraulic fluid to enable the balance valve to be switched to the second state; the hydraulic cylinder comprises a cylinder body, a piston rod movably arranged in the cylinder body, an extension cavity for introducing hydraulic fluid pushing and pressing the piston rod towards the outside of the cylinder body and a retraction cavity for introducing hydraulic fluid pushing and pressing the piston rod towards the inside of the cylinder body, the extension cavity is communicated with the second fluid port of the</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | BLASTING CRANES DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HAULING HEATING HOISTING HYDRAULICS OR PNEUMATICS IN GENERAL LIFTING LIGHTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS |
| title | On-load telescopic mechanism and crane |
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