CN203321943U - Plane service gate hydraulic opening and closing device - Google Patents
Plane service gate hydraulic opening and closing device Download PDFInfo
- Publication number
- CN203321943U CN203321943U CN2013202592777U CN201320259277U CN203321943U CN 203321943 U CN203321943 U CN 203321943U CN 2013202592777 U CN2013202592777 U CN 2013202592777U CN 201320259277 U CN201320259277 U CN 201320259277U CN 203321943 U CN203321943 U CN 203321943U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil cylinder
- hydraulic
- cylinder
- gate
- 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
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a plane service gate hydraulic opening and closing device. An opening and closing system of a plane service gate (1) is composed of a left hydraulic oil cylinder (7), a right hydraulic oil cylinder (7), a beam (5), hanging rods (6) and a hydraulic system (2). The left multistage hydraulic oil cylinder (7) and the right multistage hydraulic oil cylinder (7) are fixedly arranged on a left gate groove and a right gate groove of the gate respectively and connected with the plane service gate (1) through the beam (5) and the hanging rods (6). The hydraulic system (2) offers pressure oil to the multistage hydraulic oil cylinders (7). Pistons in the multistage hydraulic oil cylinders (7) move upwards and piston rods extend out to eject the beam (5). The plane service gate (1) is lifted and opened through the hanging rods (6). When the pressure oil in the multistage hydraulic oil cylinders (7) is discharged, the pressure oil in the multistage hydraulic oil cylinders (7) returns to an oil return tank (36) through an oil cylinder oil inlet and return pipe (26), an electromagnetic valve (22), an oil return pipe (21) and an oil return general pipe (30), so that the plane service gate (1) depends on dead weight to move downwards and is closed.
Description
1. technical field
A kind of plane operating gate hydraulic opening-closing device of the utility model belongs to the Hydraulic and Hydro-Power Engineering technology; A kind of hydraulic engineering plane gate method for opening and closing specifically.
2. background technique
The hydraulic engineering plane operating gate, it is a kind of hydraulic engineering common metal structural device, at present the method for opening and closing of plane operating gate generally adopts the wire rope hoist starting gate, utilizes the gate descending closed shutter of conducting oneself with dignity during closed shutter, is a kind of very ripe technology.Due to the needs of installation wire rope hoist, must build a very high keying framed bent and open and close platform, in order to protect hoist, on the keying platform, also be necessary to build a headstock gear.Therefore, its attached civil works of method of using wire rope hoist to open and close plane gate is very large, and the completion time of project is corresponding increase also; Build so many ancillary building on working platform, have influence on the overall appearance effect of engineering.
3. summary of the invention
The utility model provides a kind of simple, practical plane operating gate hydraulic opening-closing device, it uses hydraulic hoist to open and close plane operating gate, on working platform, without any need for ancillary building, makes engineering structure simple, reduce civilwork engineering quantity, save the engineering time; And due to more than working platform without any the civil engineering building, make the engineering overall image neat and artistic.
A kind of plane operating gate hydraulic opening-closing device, the opening/closing system of plane operating gate 1 is by two of left and right multistage hydraulic cylinder 7, crossbeam 5, suspension rod 6, hydraulic system 2 forms; Two multistage hydraulic cylinder 7 fixed and arranged in left and right, on the gate slot of gate left and right, are connected with plane operating gate 1 by crossbeam 5, suspension rod 6; Hydraulic system 2 gives multistage hydraulic cylinder 7 for pressure oil, the piston stroking upward in multistage hydraulic cylinder 7, and piston rod stretches out jack-up crossbeam 5, by suspension rod 6, plane operating gate 1 is promoted and opens; Shed the pressure oil in multistage hydraulic cylinder 7, the hydraulic oil in multistage hydraulic cylinder 7 is got back in oil sump tank 36 by oil cylinder oil inlet return tube 26, solenoid valve 22, return tube 21, oil return house steward 30, and plane operating gate 1 relies on descending the closing of deadweight.
The pumping plant of hydraulic system 2 can be designed as hydraulic power unit of each oil cylinder, makes its pipe-line system simple; Also can be designed as many pumping plant centralizedly supply pressure oils, pumping plant is standby each other, hydraulic work system is guaranteed normal; Pumping plant quantity is determined as required, pumping plant of minimum needs.
The hydraulic system that each hydraulic jack arranges a pumping plant is very simple, and hydraulic oil directly is fed to hydraulic jack by pumping plant, and oil return is also directly got back to hydraulic power unit and got final product, without narration.
The hydraulic system 2 of centralizedly supply pressure oil is by Main Hydraulic Pump station 3, secondary hydraulic power unit 4, and main fuel feeding house steward 29, secondary fuel feeding house steward 28, divide fuel supply line 31, oil cylinder oil inlet pipe 24, three-way pipe 25, oil cylinder oil inlet return tube 26, oil cylinder oil connection 27, return tube 21, oil return house steward 30, oil sump tank 36 forms; Be provided with valve 23 on the oil inlet and outlet of Main Hydraulic Pump station 3, secondary hydraulic power unit 4, minute fuel supply line 31, oil sump tank 36, oil cylinder oil inlet pipe 24, so that overhaul of the equipments; On oil cylinder oil inlet pipe 24, return tube 21, solenoid valve 22 is set, its effect is to control hydraulic oil supply or release oil return, thereby reach, makes plane operating gate promote the purpose of opening or closing; Oil cylinder oil inlet return tube 26 is connected and is divided into two with three-way pipe 25, and a road is connected with oil cylinder oil inlet pipe 24, and a road is connected with return tube 21.
Multistage hydraulic cylinder 7, in order to meet the keying stroke of plane operating gate 1, can be designed as multistage hydraulic cylinder, and its structure is by piston rod head 8, piston rod 9, final stage piston 11, oil cylinder cover 10, final stage oil cylinder 12, middle oil cylinder setting sleeve 13, middle oil cylinder 14, first order oil cylinder setting sleeve 15, first order oil cylinder 17, first order piston 18, cylinder inner oil tube 19, oil cylinder fixing bolt 16, oil cylinder oil connection 27 forms; Multi-stage oil cylinder is by two-way fuel supply line fuel feeding, one tunnel is fed in first order oil cylinder 17, first order piston 18 is up, the up jack-up crossbeam 5 of oil cylinder 14 in the middle of driving, by suspension rod 6, plane operating gate 1 is promoted and opens, if it is up that plane gate 1 will continue, only need be to another road fuel supply line fuel feeding, by cylinder inner oil tube 19 to middle oil cylinder 14 and final stage oil cylinder 12 fuel feeding, final stage piston 11 and final stage oil cylinder 12 continue the up jack-up crossbeam 5 of up drive piston rod 9, by suspension rod 6, plane operating gate 1 are risen to the height needed.
The structure of multistage hydraulic cylinder 7 can also be designed to cancel first order piston 18, cylinder inner oil tube 19, the road oil feed line that also cancellation is connected with cylinder inner oil tube 19, and its structure is by piston rod head 8, piston rod 9, final stage piston 11, oil cylinder cover 10, final stage oil cylinder 12, middle oil cylinder setting sleeve 13, middle oil cylinder 14, first order oil cylinder setting sleeve 15, first order oil cylinder 17, oil cylinder fixing bolt 16, oil cylinder oil connection 27 forms; Multistage hydraulic cylinder 7 is fed in oil cylinder by single road, and piston 11 is up, jack-up crossbeam 5, by suspension rod 61 liter of unlatching of plane operating gate, gate rise to the unlatching brightness needed make hydraulic system and cylinder structure simpler.
Why being designed with piston 18, is that while initially opening and closing because of gate, its hoisting capacity is maximum, and piston 18 is set, is to act on piston 18 for hydraulic oil is concentrated, and its lifting surface area is maximum, can obtain the initial hoisting capacity of maximum.
Be provided with setting sleeve at each oil cylinder top, its effect is the range that limits each oil cylinder, to guarantee the minimum safe lap length between the two-stage oil cylinder, guarantees its work safety.
A kind of plane gate hydraulic switch of the utility model method, the working principle of its gate opening/closing is:
(1) solenoid valve 22 of, controlling back on fuel supply line 21 makes it in closed condition, control the solenoid valve 22 on fuel supply line 24, make it in on-state, main pumping station 3 is fed to pressure oil in first order oil cylinder 17 by main fuel feeding house steward 29, minute fuel supply line 31, oil cylinder oil inlet pipe 24, three-way pipe 25, oil cylinder oil inlet return tube 26, first order piston 18 is up, the up jack-up crossbeam 5 of oil cylinder 14 in the middle of driving, promote plane operating gate 1 to open by suspension rod 6;
(2) if plane operating gate 1 also will continue up, need to pass through cylinder inner oil tube 19 to middle oil cylinder 14 and final stage oil cylinder 12 fuel feeding to another road fuel supply line, final stage piston 11 and final stage oil cylinder 12 continue the up jack-up crossbeam 5 of up drive piston rod 9, by suspension rod 6, plane operating gate 1 are risen to the height needed;
(3), close the solenoid valve 22 on fuel supply line 24, the solenoid valve of controlling on return tube 21 makes it in on-state, shed the pressure oil in multistage hydraulic cylinder 7, hydraulic oil in multistage hydraulic cylinder 7 is got back in oil sump tank 36 by oil cylinder oil inlet return tube 26, solenoid valve 22, return tube 21, oil return house steward 30, and plane operating gate 1 relies on descending the closing of deadweight.
A kind of plane operating gate hydraulic opening-closing device of the utility model, one of its advantage is simple in structure, do not had wire rope hoist must build a very high keying framed bent and opened and closed platform, build and open and close framed bent and open and close platform owing to being high-lift operation, open and close platform girder load large, its complex structure, the girder deadweight is larger, due to the hoisting and hanging difficulty, girder generally can not carry out prefabricated, can only field fabrication, need to expend a large amount of engineering times like this, because hydraulic engineering construction has periodically, generally can only construct in the dry season, a kind of plane operating gate hydraulic opening-closing device of the utility model, there is no the keying framed bent and opened and closed platform, not only saved a large amount of civilwork engineering quantities, also saved the needed time of a lot of civil workss, this is to being still important in the hydraulic engineering of seasonal construction, many times because only poor several days operating time, also likely because of flood, arrive to delay next construction year, and delay the construction cost that construction year will be very large to the engineering increase, if power station engineering, delay a construction and just mean that delaying 1 year generates electricity year, the power benefit of 1 year is very huge on the impact of construction project, therefore a kind of plane operating gate hydraulic opening-closing device of the utility model is to saving the engineering time particular importance that just seems.
A kind of plane operating gate hydraulic opening-closing device of the utility model, two of its advantage is because the plane gate opening/shutting mode adopts hydraulic control, can take the mode of centralized oil supply, to reduce expensive hydraulic power unit equipment, the engineering of porous gate particularly, can adopt two pumps station centralized oil supply, the two pumps station is standby each other, and the functional reliability of plane operating gate is guaranteed.
A kind of plane operating gate hydraulic opening-closing device of the utility model, three of its advantage is, more than hydraulic system all is arranged in the water surface, to be beneficial to overhaul of the equipments.
A kind of plane operating gate hydraulic opening-closing device of the utility model, four of its advantage is, on the gate suspension rod, lockplate is set, position, gate aperture is provided with locking framework simple in structure, can be locked in certain aperture to main gate as required, thereby not need hydraulic jack to extend the working life of oil cylinder in the high-pressure work state for a long time.
A kind of plane operating gate hydraulic opening-closing device of the utility model, five of its advantage is that working platform is above without any the civil engineering building, makes engineering integral body seem neat and artistic.
4. accompanying drawing explanation
Accompanying drawing 1 is a kind of plane operating gate hydraulic opening-closing device of the utility model structural representation;
The hydraulic scheme that accompanying drawing 2 is a kind of plane operating gate hydraulic opening-closing device of the utility model, be two hydraulic power unit central lubricating system figure shown in figure, and diagram is only the hydraulic switch system of a gate hole.
The structural drawing that accompanying drawing 3 is one of a kind of multistage hydraulic cylinder in the utility model embodiment;
Two the structural drawing that accompanying drawing 4 is a kind of multistage hydraulic cylinder in the utility model embodiment;
The structure side view that accompanying drawing 5 is a kind of plane operating gate hydraulic opening-closing device of the utility model;
The hanging rod structure locking device structure schematic diagram that accompanying drawing 6 is a kind of plane operating gate hydraulic opening-closing device of the utility model;
The hydraulic scheme that accompanying drawing 7 is the pumping plant of an oil cylinder in a kind of plane operating gate hydraulic opening-closing device of the utility model embodiment.
1, main gate; 2, hydraulic system; 3, Main Hydraulic Pump station; 4, secondary hydraulic power unit; 5, crossbeam; 6, suspension rod; 7, multistage hydraulic cylinder; 8, piston rod head; 9, piston rod; 10, oil cylinder cover; 11, final stage piston; 12, final stage oil cylinder; 13, middle oil cylinder setting sleeve; 14, middle oil cylinder; 15, first order oil cylinder setting sleeve; 16, oil cylinder fixing bolt; 17, first order oil cylinder; 18, first order piston; 19, cylinder inner oil tube; 20, return tube; 22, solenoid valve; 23, valve; 24, oil cylinder oil inlet pipe; 25, three-way pipe; 26, oil cylinder oil inlet return tube; 27, oil cylinder oil connection; 28, secondary fuel feeding house steward 1; 29, main fuel feeding house steward; 30, oil return house steward; 31, divide fuel supply line; 32, lockplate; 33, locking lever; 34, little hydraulic jack; 35 lock bracket; 36, oil sump tank.
5. embodiment
Referring to accompanying drawing 1: the opening/closing system of plane operating gate 1 is by two of left and right multistage hydraulic cylinder 7, crossbeam 5, and suspension rod 6, hydraulic system 2 forms; Two multistage hydraulic cylinder 7 fixed and arranged in left and right, on the gate slot of gate left and right, are connected with plane operating gate 1 by crossbeam 5, suspension rod 6; Hydraulic system 2 gives multistage hydraulic cylinder 7 for pressure oil, and multistage hydraulic cylinder 7 jack-up crossbeams 5 promote plane operating gate 1 to open by suspension rod 6; Shed the pressure oil in multistage hydraulic cylinder 7, the hydraulic oil in multistage hydraulic cylinder 7 is got back in oil sump tank 36 by oil cylinder oil inlet return tube 26, solenoid valve 22, return tube 21, oil return house steward 30, and plane operating gate 1 relies on descending the closing of deadweight.
Referring to accompanying drawing 2: the hydraulic system that hydraulic switch system 2 is two pumping plant centralized oil supplies, by Main Hydraulic Pump station 3, secondary hydraulic power unit 4, secondary fuel feeding house steward 28, main fuel supply line 29, minute fuel supply line 31, oil cylinder oil inlet pipe 24, oil cylinder oil inlet return tube 26, three-way pipe 25, oil cylinder oil connection 27, return tube 21, oil return house steward 30, oil sump tank 36 forms; Be provided with valve 23 on the oil inlet and outlet of pumping plant 3,4, minute fuel supply line 31, oil sump tank 36, oil cylinder oil inlet pipe 24, so that overhaul of the equipments; Oil cylinder oil inlet return tube 26 is connected and is divided into two with three-way pipe 25, and a road is connected with oil cylinder oil inlet pipe 24, and a road is connected with return tube 21, is provided with valve 23 on oil cylinder oil inlet pipe 24, and solenoid valve 22 arranges solenoid valve 22 on return tube 21.Main Hydraulic Pump station 3 and secondary hydraulic power unit 4, main fuel supply line 29 and secondary fuel supply line 28 be overhaul reserve each other, guarantees the gate functional reliability.
Referring to accompanying drawing 3: multistage hydraulic cylinder 7 is designed to multistage hydraulic cylinder, its structure is by piston rod head 8, piston rod 9, final stage piston 11, oil cylinder cover 10, final stage oil cylinder 12, middle oil cylinder setting sleeve 13, middle oil cylinder 14, first order oil cylinder setting sleeve 15, first order oil cylinder 17, first order piston 18, cylinder inner oil tube 19, oil cylinder fixing bolt 16, oil cylinder oil connection 27 forms; Multi-stage oil cylinder is by two-way fuel supply line fuel feeding, one tunnel is fed in master cylinder, piston 18 is up, jack-up crossbeam 5, by suspension rod 6, plane operating gate 1 is promoted and opens, if also will continue uply, need to another road fuel supply line fuel feeding, by cylinder inner oil tube 19, to middle oil cylinder 14 and final stage oil cylinder 12 fuel feeding, final stage piston 11 continues the up height needed that gate is risen to.
Referring to accompanying drawing 4: the structure of multistage hydraulic cylinder 7 can also be designed to cancel piston 18, and cylinder inner oil tube 19 is also cancelled a road oil feed line, and its structure is by piston rod head 8, piston rod 9, final stage piston 11, oil cylinder cover 10, final stage oil cylinder 12, middle oil cylinder setting sleeve 13, middle oil cylinder 14, first order oil cylinder setting sleeve 15, first order oil cylinder 17, oil cylinder fixing bolt 16, oil cylinder oil connection 27 forms; Multi-stage oil cylinder is fed in oil cylinder by single road, and piston 11 is up, and jack-up crossbeam 51 liter of unlatching of plane operating gate, rises to gate the Lift needed by suspension rod 6, makes hydraulic system and cylinder structure simpler.
Referring to accompanying drawing 5, accompanying drawing 6: many group lockplates 32 are arranged in the shaft both sides of suspension rod 6, lock bracket 35 is fixed on plane operating gate gate slot top, locking lever 33 is controlled by a little hydraulic jack 34, when plane operating gate 1 need to be in a certain aperture position during the parked long period, can lock suspension rods with locking lever 33, thereby the locking gate is in the aperture position of needs.
Referring to accompanying drawing 7, hydraulic switch system 2 is the hydraulic system of a pumping plant to a hydraulic jack fuel feeding, is characterized in that pipeline structure is simple.But every pumping plant only supplies a hydraulic jack job, need to use more pumping plant, and hydraulic power unit comparatively speaking cost be more expensive, therefore can increase cost, generally do not advise using.
Claims (6)
1. a plane operating gate hydraulic opening-closing device is characterized in that: the opening/closing system of plane operating gate (1) is by two multistage hydraulic cylinders in left and right (7), crossbeam (5), and suspension rod (6), hydraulic system (2) forms; Left and right two multistage hydraulic cylinders (7) fixed and arranged, on the gate slot of gate left and right, is connected with plane operating gate (1) by crossbeam (5), suspension rod (6); Hydraulic system (2) gives multistage hydraulic cylinder (7) for pressure oil, and multistage hydraulic cylinder (7) jack-up crossbeam (5) promotes plane operating gate (1) to open by suspension rod (6); Shed the pressure oil in multistage hydraulic cylinder (7), hydraulic oil in multistage hydraulic cylinder (7) is got back in oil sump tank (36) by oil cylinder oil inlet return tube (26), solenoid valve (22), return tube (21), oil return house steward (30), and plane operating gate (1) relies on descending the closing of deadweight.
2. a kind of plane operating gate hydraulic opening-closing device according to claim 1 is characterized in that the Design of Pump Station of hydraulic system (2) has the various structures form: the first structural type is hydraulic power unit of each oil cylinder; The second structural type is many hydraulic power unit centralizedly supply pressure oils, and hydraulic power unit quantity is determined as required, hydraulic power unit of minimum needs.
3. a kind of plane operating gate hydraulic opening-closing device according to claim 1, it is characterized in that: the hydraulic system of centralizedly supply pressure oil (2) is by Main Hydraulic Pump station (3), secondary hydraulic power unit (4), main fuel feeding house steward (29), secondary fuel feeding house steward (28), divide fuel supply line (31), oil cylinder oil inlet pipe (24), three-way pipe (25), oil cylinder oil inlet return tube (26), oil cylinder oil connection (27), return tube (21), oil return house steward (30), oil sump tank (36) forms; Be provided with valve (23) on the oil inlet and outlet of Main Hydraulic Pump station (3), secondary hydraulic power unit (4), minute fuel supply line (31), oil sump tank (36), oil cylinder oil inlet pipe (24), return tube (21); Solenoid valve (22) also is set at oil cylinder oil inlet pipe (24), on return tube (21); Oil cylinder oil inlet return tube (26) is connected and is divided into two with three-way pipe (25), and a road is connected with oil cylinder oil inlet pipe (24), and a road is connected with return tube (21).
4. a kind of plane operating gate hydraulic opening-closing device according to claim 1, it is characterized in that: multistage hydraulic cylinder (7) has the various structures form, its a kind of structural type is by piston rod head (8), piston rod (9), final stage piston (11), oil cylinder cover (10), final stage oil cylinder (12), middle oil cylinder setting sleeve (13), middle oil cylinder (14), first order oil cylinder setting sleeve (15), first order oil cylinder (17), first order piston (18), cylinder inner oil tube (19), oil cylinder fixing bolt (16), oil cylinder oil connection (27) forms; Multi-stage oil cylinder is by two-way fuel supply line fuel feeding, and a road is fed to first order oil cylinder (17), and first order piston (18) is up, and jack-up crossbeam (5) promotes plane operating gate (1) to open by suspension rod (6); If plane operating gate (1) will continue up, only need be to another road fuel supply line fuel feeding, by cylinder inner oil tube (19), to middle oil cylinder (14) and final stage oil cylinder (12) fuel feeding, final stage piston (11) and final stage oil cylinder (12) continue the up height needed that plane operating gate (1) is risen to.
5. a kind of plane operating gate hydraulic opening-closing device according to claim 1, it is characterized in that: many group lockplates (32) are arranged in the shaft both sides of suspension rod (6), lock bracket (35) is fixed on plane operating gate gate slot top, locking lever (33) is controlled by a little hydraulic jack (34), when plane operating gate (1) need to be in a certain aperture position during the parked long period, control locking lever (33) locking suspension rod (6) by hydraulic jack (34), thereby lock plane main gate (1) is in the aperture position of needs.
6. the second structural type of multistage hydraulic cylinder according to claim 4 (7), it is characterized in that: the structure of multistage hydraulic cylinder is by piston rod head (8), piston rod (9), final stage piston (11), oil cylinder cover (10), final stage oil cylinder (12), middle oil cylinder setting sleeve (13), middle oil cylinder (14), first order oil cylinder setting sleeve (15), first order oil cylinder (17), oil cylinder fixing bolt (16), oil cylinder oil connection (27) forms; Multi-stage oil cylinder (7) has a road fuel supply line fuel feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202592777U CN203321943U (en) | 2013-05-06 | 2013-05-06 | Plane service gate hydraulic opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202592777U CN203321943U (en) | 2013-05-06 | 2013-05-06 | Plane service gate hydraulic opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321943U true CN203321943U (en) | 2013-12-04 |
Family
ID=49661298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202592777U Expired - Fee Related CN203321943U (en) | 2013-05-06 | 2013-05-06 | Plane service gate hydraulic opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245601A (en) * | 2016-09-21 | 2016-12-21 | 中国电建集团昆明勘测设计研究院有限公司 | Step-by-step vertical lifting hoist |
| CN106368180A (en) * | 2016-11-11 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | Inverted push-type gate |
-
2013
- 2013-05-06 CN CN2013202592777U patent/CN203321943U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245601A (en) * | 2016-09-21 | 2016-12-21 | 中国电建集团昆明勘测设计研究院有限公司 | Step-by-step vertical lifting hoist |
| CN106245601B (en) * | 2016-09-21 | 2018-06-26 | 中国电建集团昆明勘测设计研究院有限公司 | Step-by-step vertical lifting hoist |
| CN106368180A (en) * | 2016-11-11 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | Inverted push-type gate |
| CN106368180B (en) * | 2016-11-11 | 2019-02-15 | 中国电建集团成都勘测设计研究院有限公司 | Projecting push mode gate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102241371B (en) | Hydraulic system applied to multi-spud leg lifting mechanism | |
| CN206035914U (en) | Four jar synchronous hydraulic system of automobile elevator | |
| CN201507500U (en) | Stepping type heating furnace hydraulic balance energy-saving device | |
| CN206872378U (en) | A kind of aerial work platform hydraulic energy-saving system with no-load protection | |
| CN203321943U (en) | Plane service gate hydraulic opening and closing device | |
| CN100520982C (en) | Waterpower driving mechanism for reactor safety rod | |
| CN104047932B (en) | The potential energy recovery system of jacking equipment under Vnsteady loads and using method thereof | |
| CN204369363U (en) | A kind of Twin-plunger Hydraulic Elevator system | |
| CN1657393A (en) | Push and pull cylinder variable frequency energy-saving hydraulic elevator system of balancing load by accumulator loop | |
| CN102259793A (en) | Electric six-blade hydraulic grab bucket | |
| CN204225047U (en) | Lower shaft drives steel-slag sand Integral hydraulic oil cylinder locking mechanism | |
| CN203214493U (en) | Potential energy recovery hydraulic control system of lifting equipment at stable load | |
| CN105485078A (en) | Energy recycling hydraulic system of rotary drilling rig mast derricking mechanism | |
| CN201059298Y (en) | Gate valve hydraulic driving system | |
| CN205277954U (en) | Hydraulic transmission system of hydraulic pressure lifting foot hand frame for construction | |
| CN103771286A (en) | Multi-cylinder synchronous lifting mechanism | |
| CN203373114U (en) | Tube explosion resistant oil hydraulic circuit of vertical lifting mechanism | |
| CN203230677U (en) | Automatic oil supplementing system of closed hydraulic cargo winch | |
| CN208997094U (en) | A kind of meet an urgent need removes receipts hydraulic system, construction machinery hydraulic system and its engineering machinery | |
| CN103771289A (en) | Multi-cylinder synchronous lifting mechanism | |
| CN203214495U (en) | Potential energy recycling hydraulic control system of lifting equipment | |
| CN113321159A (en) | Dual-redundancy gravity descending control system, lifting working platform and control method thereof | |
| CN107642511B (en) | Direct-drive electrohydraulic servo die forging hammer control system | |
| CN201592936U (en) | Skip floor type indoor lifting stair | |
| CN201801331U (en) | Self-suction type oil cylinder anti-overturn device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |