CN112412915A - 液压支架用三级卸荷大流量立柱液控单向阀 - Google Patents
液压支架用三级卸荷大流量立柱液控单向阀 Download PDFInfo
- Publication number
- CN112412915A CN112412915A CN202011563342.6A CN202011563342A CN112412915A CN 112412915 A CN112412915 A CN 112412915A CN 202011563342 A CN202011563342 A CN 202011563342A CN 112412915 A CN112412915 A CN 112412915A
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- liquid return
- interface
- step surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011563342.6A CN112412915A (zh) | 2020-12-25 | 2020-12-25 | 液压支架用三级卸荷大流量立柱液控单向阀 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011563342.6A CN112412915A (zh) | 2020-12-25 | 2020-12-25 | 液压支架用三级卸荷大流量立柱液控单向阀 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112412915A true CN112412915A (zh) | 2021-02-26 |
Family
ID=74782710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011563342.6A Pending CN112412915A (zh) | 2020-12-25 | 2020-12-25 | 液压支架用三级卸荷大流量立柱液控单向阀 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112412915A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113404522A (zh) * | 2021-07-26 | 2021-09-17 | 郑州煤机综机设备有限公司 | 一种液压支架立柱防涨阀堵 |
WO2023206747A1 (zh) * | 2022-04-26 | 2023-11-02 | 北京天玛智控科技股份有限公司 | 多级液压调速系统和液压支架 |
-
2020
- 2020-12-25 CN CN202011563342.6A patent/CN112412915A/zh active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113404522A (zh) * | 2021-07-26 | 2021-09-17 | 郑州煤机综机设备有限公司 | 一种液压支架立柱防涨阀堵 |
WO2023206747A1 (zh) * | 2022-04-26 | 2023-11-02 | 北京天玛智控科技股份有限公司 | 多级液压调速系统和液压支架 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112412915A (zh) | 液压支架用三级卸荷大流量立柱液控单向阀 | |
CN110686105B (zh) | 一种先导式减压阀 | |
CN204664492U (zh) | 水过滤器安全阀 | |
CN201439700U (zh) | 防喷工作阀筒 | |
CN214465206U (zh) | 液压支架用三级卸荷大流量立柱液控单向阀 | |
CN201513184U (zh) | 防飞阀单体液压支柱 | |
CN202746185U (zh) | 一种双导向带非金属密封锥形阀及其液缸体结构 | |
CN108425821A (zh) | 一种液压增压泵 | |
CN102191944A (zh) | 一种插装式中流量立柱液控单向阀 | |
CN202064971U (zh) | 一种插装式中流量立柱液控单向阀 | |
CN115414856A (zh) | 阳离子染料冰醋酸自动加料溶解装置 | |
CN201396177Y (zh) | 新型自动增压式初撑力保证器 | |
RU2339788C1 (ru) | Арматура фонтанная горизонтальная | |
CN109723874A (zh) | 一种轻按式延时自闭阀芯 | |
CN208364090U (zh) | 多组胶筒可洗井封隔器 | |
CN202810774U (zh) | 双向自锁式套管外封隔器 | |
CN102767512B (zh) | 一种双导向带非金属密封锥形阀及其液缸体结构 | |
CN218150884U (zh) | 一种防回流装置及防回流注水系统 | |
CN201420533Y (zh) | 防喷凡尔阀 | |
CN204140099U (zh) | 一种插装式液压阀 | |
CN211287729U (zh) | 一种立柱液控单向阀 | |
CN2763517Y (zh) | 工作压力为31.5MPa的换向阀 | |
CN205937282U (zh) | 一种邻架先导液压换向阀 | |
CN203961908U (zh) | 同心式生产传压装置 | |
CN208560245U (zh) | 一种防盗酒桶 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20220713 Address after: 450016 No.167, 9th Street, Zhengzhou area (Jingkai), Zhengzhou pilot Free Trade Zone, Henan Province Applicant after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: No.167, 9th Street, Zhengzhou Economic Development Zone, Henan Province, 450016 Applicant before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Applicant before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
TA01 | Transfer of patent application right | ||
CB02 | Change of applicant information |
Address after: 450016 No.167, 9th Street, Zhengzhou area (Jingkai), Zhengzhou pilot Free Trade Zone, Henan Province Applicant after: Zhengzhou Hengda Intelligent Control Technology Co.,Ltd. Address before: 450016 No.167, 9th Street, Zhengzhou area (Jingkai), Zhengzhou pilot Free Trade Zone, Henan Province Applicant before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
CB02 | Change of applicant information |