CN106420241B - A kind of hydraulic system for operating table - Google Patents
A kind of hydraulic system for operating table Download PDFInfo
- Publication number
- CN106420241B CN106420241B CN201610828536.1A CN201610828536A CN106420241B CN 106420241 B CN106420241 B CN 106420241B CN 201610828536 A CN201610828536 A CN 201610828536A CN 106420241 B CN106420241 B CN 106420241B
- Authority
- CN
- China
- Prior art keywords
- groove
- piston
- hydraulic pressure
- piston bar
- cylinder body
- 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.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/02—Adjustable operating tables; Controls therefor
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/02—Adjustable operating tables; Controls therefor
- A61G13/08—Adjustable operating tables; Controls therefor the table being divided into different adjustable sections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/123—Lower body, e.g. pelvis, hip, buttocks
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/87—Detection of failures
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/875—Control measures for coping with failures
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
Description
Claims (7)
- A kind of 1. hydraulic system of operating table, it is characterised in that including:First hydraulic jack and the second hydraulic jack, the first liquid Compressing cylinder and the second hydraulic jack respectively with the first podical plate(01)And second podical plate(02)Coordinate installation, first hydraulic jack Including the first cylinder body(11), First piston bar(12)And first piston(13), First piston bar(12)One end be provided with first Piston(13)And pass through the first cylinder body(11)End face stretch into the first cylinder body(11)Inside it is slidably installed, first piston(13)By first Cylinder body(11)It is divided into a cavitys(14)And b cavitys(15);Second hydraulic jack includes the second cylinder body(21), second piston bar(22) And second piston(23), second piston bar(22)One end second piston is installed(23)And pass through the second cylinder body(21)End face Stretch into the second cylinder body(21)Inside it is slidably installed, second piston(23)By the second cylinder body(21)It is divided into c cavitys(24)And d cavitys (25);C cavitys(24)With a cavitys(14)Connection, the first cylinder body(11)First piston bar is installed(12)End face be provided with first oil Liquid compensation pipe, the first fluid compensation pipe are provided with the first control valve;The first piston(13)The middle part of external cylindrical surface be provided with First sealing shroud is installed(17)The first groove, the bottom of the first groove is provided with the first hydraulic pressure groove(19), the first hydraulic pressure groove(19) The first elastic membrane is provided between the first groove(18);First piston(13)It is interior to be provided with and the first hydraulic pressure groove(19)The oil of connection Hole, along First piston bar(12)It is axially arranged with the first hydraulic pressure hole(16), the first hydraulic pressure hole(16)Penetrate First piston bar(12)'s End face and the first hydraulic pressure groove(19)On oilhole connection;The second piston(23)External cylindrical surface middle part be provided with installation the second sealing shroud(27)The second groove, the second groove Bottom be provided with the second hydraulic pressure groove(29), the second hydraulic pressure groove(29)The second elastic membrane is provided between the second groove(28);Second Piston(23)It is interior to be provided with and the second hydraulic pressure groove(29)The oilhole of connection, along second piston bar(22)It is axially arranged with the second hydraulic pressure hole (26), the second hydraulic pressure hole(26)Penetrate second piston bar(22)End face and the second hydraulic pressure groove(29)On oilhole connection;First Piston(13)And second piston(23)Both ends are respectively equipped with guide sleeve on the outer face of cylinder.
- 2. the hydraulic system of operating table according to claim 1, it is characterised in that first cylinder body(11)And second cylinder Body(21)Piston rod packing be provided with auxiliary seal(51), auxiliary seal(51)Located at the first cylinder body(11)And second cylinder body(21) Cylinder cap on the inside of.
- 3. the hydraulic system of operating table according to claim 2, it is characterised in that the auxiliary seal(51)Including fixation It is installed on the first cylinder body(11)And second cylinder body(21)Cylinder cap on ring block(52), ring block(52)Internal face be provided with sealing Groove(53), seal groove(53)It is interior to be provided with sealing device, seal groove(53)Bottom is provided with oil groove(54), oil groove(54)With seal groove (53)Between be provided with supercharging film, oil groove(54)Connected with fueller, oil groove(54)Electrically-controlled valve is provided between fueller.
- 4. the hydraulic system of operating table according to claim 3, it is characterised in that First piston bar(12)And second piston Bar(22)On be respectively equipped with a displacement transducers and b displacement transducers, the first hydraulic pressure groove(19)And the second hydraulic pressure groove(29)Or first Hydraulic pressure hole(16)And the second hydraulic pressure hole(26)Interior be provided with is respectively equipped with a pressure sensors and b pressure sensors, auxiliary seal(51) Oil groove(54)It is interior to be provided with c pressure sensors, the first hydraulic pressure hole(16)And the second hydraulic pressure hole(26)A oil pipes and b oil are connected with respectively Manage, be respectively equipped with a valves and b valves on a oil pipes and b oil pipes, a oil pipes and b oil pipes are connected with fueller;First control valve, electrically-controlled valve, a valves, b valves, a displacement transducers, b displacement transducers, a pressure sensors, b pressure sensors And c pressure sensors are connected with MCU respectively.
- 5. the hydraulic system of operating table according to claim 4, it is characterised in that a displacement transducers measure first piston Bar(12)Displacement S1, b displacement transducer measure second piston bar(22)Displacement S2, a displacement transducer and b displacement transducers The data measured are transmitted to MCU in real time, when | during S1- S2| >=m, m is First piston bar(12)With second piston bar(22)Between The displacement error value of permission, MCU controls the first control valve to open, to a cavitys(14)Repairing, when | during S1- S2|≤0.5m, MCU The first control valve is controlled to close;Work as First piston bar(12)With second piston bar(22)When mobile, MCU control a valves, b valves and It is 0.2~0.5P that electrically-controlled valve opening and MCU, which control fueller fuel feeding hydraulic pressure, and P is auxiliary Seal Oil pressure;Work as First piston bar (12)With second piston bar(22)When static, MCU control a valves, b valves and electrically-controlled valve are opened and MCU control fueller fuel feeding liquid Press as 0.8P;The pressure measured is transmitted to MCU, a pressures by a pressure sensors, b pressure sensors and c pressure sensors in real time respectively When the pressure that force snesor, b pressure sensors or c pressure sensors measure is more than rated value, then MCU controls fueller to reduce Charge oil pressure, and MCU sends alarm to hydraulic pressure warning system.
- 6. the hydraulic system of operating table according to claim 1, it is characterised in that the guide sleeve includes:Cylindrical carcass And the ptfe composite outside skeleton;The each component quality proportioning of ptfe composite material is:Polytetrafluoroethylene (PTFE):52-60 parts;Glass fibre:5-8 parts;Molybdenum disulfide powder:5-6.5 part;Carbon fiber:4-7 parts;Dioxy SiClx powder:8-13 parts;PA:9-13 parts;Barium sulfate:15-20 parts;Copper powder:10-15 parts;Carbon fiber through over-richness be 0.2~ 0.4% rare earth modified processing.
- 7. the hydraulic system of operating table according to claim 6, it is characterised in that each group of ptfe composite material Point quality proportioning is:Polytetrafluoroethylene (PTFE):56 parts;Glass fibre:6 parts;Molybdenum disulfide powder:5.8 part;Carbon fiber:6 parts;SiO 2 powder: 10 parts;PA:12 parts;Barium sulfate:17 parts;Copper powder:13 parts.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610828536.1A CN106420241B (en) | 2016-09-19 | 2016-09-19 | A kind of hydraulic system for operating table |
CN201710950889.3A CN107693284A (en) | 2016-09-19 | 2016-09-19 | Ptfe composite material for guide sleeve skeleton in operating table hydraulic system |
CN201710950853.5A CN107806452B (en) | 2016-09-19 | 2016-09-19 | A kind of control method of operating table hydraulic system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610828536.1A CN106420241B (en) | 2016-09-19 | 2016-09-19 | A kind of hydraulic system for operating table |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710950853.5A Division CN107806452B (en) | 2016-09-19 | 2016-09-19 | A kind of control method of operating table hydraulic system |
CN201710950889.3A Division CN107693284A (en) | 2016-09-19 | 2016-09-19 | Ptfe composite material for guide sleeve skeleton in operating table hydraulic system |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106420241A CN106420241A (en) | 2017-02-22 |
CN106420241B true CN106420241B (en) | 2018-01-26 |
Family
ID=58169196
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610828536.1A Expired - Fee Related CN106420241B (en) | 2016-09-19 | 2016-09-19 | A kind of hydraulic system for operating table |
CN201710950853.5A Active CN107806452B (en) | 2016-09-19 | 2016-09-19 | A kind of control method of operating table hydraulic system |
CN201710950889.3A Pending CN107693284A (en) | 2016-09-19 | 2016-09-19 | Ptfe composite material for guide sleeve skeleton in operating table hydraulic system |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710950853.5A Active CN107806452B (en) | 2016-09-19 | 2016-09-19 | A kind of control method of operating table hydraulic system |
CN201710950889.3A Pending CN107693284A (en) | 2016-09-19 | 2016-09-19 | Ptfe composite material for guide sleeve skeleton in operating table hydraulic system |
Country Status (1)
Country | Link |
---|---|
CN (3) | CN106420241B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110081044B (en) * | 2019-04-15 | 2024-02-02 | 宣化钢铁集团有限责任公司 | Hydraulic leak detection valve and online leak detection method |
CN113833710A (en) * | 2020-06-23 | 2021-12-24 | 明基三丰医疗器材(上海)有限公司 | Oil hydraulic cylinder and series connection type synchronous oil hydraulic cylinder system |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9014369D0 (en) * | 1990-06-28 | 1990-08-22 | Smiths Industries Plc | Patient support tables |
RU2149164C1 (en) * | 1994-02-25 | 2000-05-20 | Дайкин Индастриз, Лтд | Method of preparing molded polytetrafluoroethylene with lubricant, tape squeeze and dehydration apparatus, and method for dehydration of wet solid materials |
CN1552297A (en) * | 2003-05-29 | 2004-12-08 | 鼎众股份有限公司 | Synchronous range oil pressure unit of operating table |
CN2882591Y (en) * | 2006-01-24 | 2007-03-28 | 杨建军 | Body side fixed operation suture table |
CN101498327A (en) * | 2009-02-27 | 2009-08-05 | 武汉科技大学 | Oil film supporting servo hydraulic cylinder |
US20120095169A1 (en) * | 2009-06-30 | 2012-04-19 | Ryohei Ogawa | Polylactic acid-based resin, process for producing polylactic acid-based resin, polylactic acid resin composition, stereocomplex polylactic acid resin composition and process for producing stereocomplex polylactic acid resin composition |
CN201496343U (en) * | 2009-07-17 | 2010-06-02 | 李新桥 | Guide sleeve for hydraulic oil cylinder |
US9045614B2 (en) * | 2010-08-25 | 2015-06-02 | Daikin Industries, Ltd. | Fluororubber composition |
JP2013177652A (en) * | 2012-02-28 | 2013-09-09 | Aisin Seiki Co Ltd | Partial surface treatment apparatus |
CN103486104A (en) * | 2013-09-09 | 2014-01-01 | 苏州柯尔医疗器械有限公司 | Synchronous hydraulic system of surgical bed |
CN203476918U (en) * | 2013-10-06 | 2014-03-12 | 宜都市西孚机械有限公司 | Hydraulic oil cylinder with sensors |
US9169776B2 (en) * | 2014-01-09 | 2015-10-27 | Golden Lion Enterprise Co., Ltd. | Cylinder liner used for model engine |
CN204337189U (en) * | 2014-12-16 | 2015-05-20 | 王彦红 | The overall standing device of bed surface |
CN104806589B (en) * | 2015-05-04 | 2018-05-15 | 上海医疗器械股份有限公司 | A kind of automatic compensation structure of synchronous hydraulic cylinder of operating table and compensation method |
CN205533530U (en) * | 2016-04-26 | 2016-08-31 | 合肥长源液压股份有限公司 | Throttle buffering hydro -cylinder with at bottom of integral type cushioned cylinder |
-
2016
- 2016-09-19 CN CN201610828536.1A patent/CN106420241B/en not_active Expired - Fee Related
- 2016-09-19 CN CN201710950853.5A patent/CN107806452B/en active Active
- 2016-09-19 CN CN201710950889.3A patent/CN107693284A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN107693284A (en) | 2018-02-16 |
CN107806452A (en) | 2018-03-16 |
CN107806452B (en) | 2019-09-06 |
CN106420241A (en) | 2017-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN207300746U (en) | A kind of Steel Tube Special sealing device for water pressure test | |
CN106420241B (en) | A kind of hydraulic system for operating table | |
CN102865271A (en) | Detection method and device of internal leakage of hydraulic valve | |
CN101819052B (en) | Flow transmitter provided with double differential pressure sensors and pressure difference measurement method | |
CN209976973U (en) | Detection device for rapidly detecting internal leakage of hydraulic oil cylinder | |
CN205640010U (en) | V -arrangement end face seal formula whirl compensator | |
CN206443871U (en) | A kind of hydraulic system for operating table | |
CN101915647B (en) | End face seal pressure test head device of hydraulic pressure testing machine | |
CN107035744B (en) | A kind of angling cylinder having position self-locking function | |
CN207131652U (en) | A kind of single-acting series connection synchronous fuel tank | |
CN204164412U (en) | Dual-soft seal ball valve | |
CN202972300U (en) | Ultrahigh pressure detachable cone sealing pressure-measuring connector | |
CN212844249U (en) | Leakage quantity detection device leaks in pneumatic cylinder | |
CN204405246U (en) | Pressure-detecting device | |
CN209148274U (en) | Whirl compensator test platform | |
CN201935758U (en) | Device for testing dynamic friction force of pneumatic control valve | |
CN103244699B (en) | Ultra-high pressure high flow topping up or pouring valve | |
CN204985161U (en) | Superhigh pressure hydro -cylinder | |
CN104019021A (en) | Device and method for detecting water pump sealing performance | |
CN211573500U (en) | Optical fiber sliding sleeve for fracturing operation | |
CN105806549A (en) | Pressure detection device | |
CN207379852U (en) | A kind of measurement device for sealing shaft part case hardness reasonable value | |
CN205157104U (en) | Pressure transmission seat, pressure measurement and infusion assembly | |
CN106593858B (en) | A kind of reciprocating pump plunger packing sealing lubrication device | |
CN219694471U (en) | Movable steel pipe air tightness testing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Guo Linqi Inventor after: Liu Haiping Inventor after: Zhou Yu Inventor after: Li Hongbin Inventor after: Teng Xinli Inventor before: Lin Yuanchun |
|
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20171227 Address after: Xiangyang District Heilongjiang city Jiamusi province 154007 Xuefu Street No. 148 Applicant after: Jiamusi University Address before: 610041 Chengdu Province, Wuhou District City, chrysanthemum Road, No. 1-1, No. 1, building No. 1, layer Applicant before: Chengdu Addison Biotechnology Co. Ltd. |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20180919 |