CN104358239A - Hydraulic flat opening vertical rotating type protection sealing flood gate - Google Patents

Hydraulic flat opening vertical rotating type protection sealing flood gate Download PDF

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Publication number
CN104358239A
CN104358239A CN201410610391.9A CN201410610391A CN104358239A CN 104358239 A CN104358239 A CN 104358239A CN 201410610391 A CN201410610391 A CN 201410610391A CN 104358239 A CN104358239 A CN 104358239A
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CN
China
Prior art keywords
valve
hydraulic
oil
flood gate
pump
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.)
Granted
Application number
CN201410610391.9A
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Chinese (zh)
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CN104358239B (en
Inventor
张瑞龙
田江泽
袁代光
徐胜
卢屹东
王淑敬
陈华明
刘颖
刘铮
程志强
王建坤
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Beijing state standard construction equipment Technology Co., Ltd.
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Co Ltd Of China Inst Of Architectural Standard Design
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Publication date
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Priority to CN201410610391.9A priority Critical patent/CN104358239B/en
Publication of CN104358239A publication Critical patent/CN104358239A/en
Application granted granted Critical
Publication of CN104358239B publication Critical patent/CN104358239B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/40Swinging or turning gates
    • E02B7/44Hinged-leaf gates

Abstract

The invention relates to the field of a flat opening vertical rotating type protection gate, in particular to a hydraulic flat opening vertical rotating type protection sealing flood gate arranged in a main line interval of a subway. The hydraulic flat opening vertical rotating type protection sealing flood gate comprises a pump station and a valve group, wherein the pump station comprises an oil tank, a manual pump, a motor, an oil pump, an oil suction oil filter and an oil return oil filter, and the valve group comprises a first group of valves, a second group of valves and a third group of valves in parallel arrangement. The hydraulic flat opening vertical rotating type protection sealing flood gate has the advantages that the fast and safe closing can be realized during subway tunnel water inlet; the requirements of driving the pump station and operating the flood gate by electric power at ordinary times can be met; the characteristic that the flood gate can still be normally opened when the first set of pump station fails is also realized; the requirement of two-mode operation of completing the starting and closing of the flood gate through operating the manual pump in an equipment room and adopting a conventional manual mode to operate the flood gate to be opened and closed in the interval during the power supply cutoff can be met.

Description

Hydraulic flat is opened rotatable protection airtight and to be held concurrently Flood gate
Technical field
The present invention relates to and flat open rotatable protective door field, a kind of hydraulic flat being arranged on subway main track interval is opened rotatable protection airtight and to be held concurrently Flood gate specifically.
Background technology
According to the relevant regulations of China's " people's air defense method ", the needs of people's air defence in wartime must be taken into account during Metro Construction, again according to " metro design code " and " railway traffic engineering people's air defence design specifications " requirement, to under wear the subway engineering in the waters such as river or lake, protection airtight should be established to hold concurrently Flood gate or take other anti-ly to flood measure in the appropriate location, two ends in turnover waters.Flood gate system, as a kind of safety control equipment, is stop river to pour in effective barrier of subway station when running tunnel burst accident.
Existing Subway Tunnel Flood gate mainly comprises flat opens rotatable, ascending/decending and flat push type three kinds of structures, wherein ascending/decending Flood gate needs above door opening, arrange the equipment machine room that is greater than door opening size, machine room headroom is relatively high, in case of emergency during Non-follow control closing gate, unlock complicated, gate falls without buffering, and easily damage track and railway roadbed, cause maintenance cost to increase, and the flat type of drive opening rotary flood and preventive door usually adopted mainly contains manual opening ways, motor drive mode or hydraulic driving mode, wherein manual unlatching is wasted time and energy, and at the large head pressure operating equipment that goes down, there is great danger, the major defect of motor drive mode is systematic waterproofing process more complicated, reliability under water logging state cannot ensure, hydraulic-driven is most scientific a kind of mode comparatively speaking, but adopt hydraulic-driven also to there is supply of electric power to cut off, pumping plant mechanical breakdown cannot start equivalent risk, thus affect the keying of Flood gate.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming existed for above-mentioned prior art, provide a kind of safe and reliable, can stop or reduce subway and to hold concurrently Flood gate because the hydraulic flat of disaster-stricken impact operation opens rotatable protection airtight.
The present invention solves the technical scheme that its technical problem takes: a kind of hydraulic flat is opened rotatable protection airtight and to be held concurrently Flood gate, comprise door leaf, steel door frame, hinge page, headstock gear, stopping means and blocking device, steel door frame is fixed in body of wall, door leaf is connected on steel door frame by hinge page, described headstock gear comprises keying frame forearm, open and close frame postbrachium and engineering oil cylinder, the front end opening and closing frame forearm is hinged on door leaf, the rear end opening and closing frame forearm is hinged with the front end opening and closing frame postbrachium, the rear end opening and closing frame postbrachium is hinged on body of wall, engineering oil cylinder can drive to open and close frame forearm and open and close frame postbrachium and stretch or shrink, thus door leaf can be promoted around hinge page rotary motion, stopping means comprises limited post, pull bar oil cylinder, latch, connection seat, chain steady pin and limited post guide pin bushing, and pull bar oil cylinder and limited post guide pin bushing are fixed on door leaf, blocking device comprises locking and drives handwheel, chain, drive sprocket, driven sprocket, the hydraulic motor of locking, and hydraulic motor and handwheel are arranged on door leaf, and hydraulic motor is rotated by drive sprocket and chain-driving driven sprocket, described engineering oil cylinder, pull bar oil cylinder and hydraulic motor are driven by hydraulic system, it is characterized in that: described hydraulic system comprises pumping plant and valve group, described pumping plant comprises fuel tank, manual pump, motor, oil pump, oil-suction oil filter and return oil filter, motor is for driving oil pump, manual pump and oil pump are arranged in parallel, manual pump is communicated with fuel tank by oil-suction oil filter with the inlet line of oil pump, manual pump is communicated with the in-line of valve group with the outlet line of oil pump, and the return line of valve group is communicated with fuel tank by return oil filter, valve group comprises the first group of valve be arranged in parallel, second group of valve and the 3rd group of valve, and first group of valve, second group of valve and the 3rd group of valve are formed by a solenoid operated directional valve and a hand-operated direction valve parallel connection overlap joint respectively, pull bar oil cylinder is connected with return line with the in-line of valve group with first group of valve by the first 2/2-way manual conical valve of setting gradually, the first stacking type hydraulic control check valve, is provided with first throttle valve between first group of valve and the in-line of valve group, engineering oil cylinder is connected with return line with the in-line of valve group with second group of valve by the second 2/2-way manual conical valve of setting gradually, the second stacked unidirectional throttle valve, the second stacking type hydraulic control check valve, hydraulic motor is connected with return line with the in-line of valve group with the 3rd group of valve by the 3rd 2/2-way manual conical valve set gradually, and the 3rd group is provided with second throttle between valve and the in-line of valve group.
Further, air filter, content gauge, liquid level relay and electric contact thermometer is also provided with in described fuel tank.
Further, the outlet line of described manual pump and oil pump is also provided with pressure meter, pressure meter switch and pressure switch.
Further, between the outlet line and the return line of valve group of described oil pump, a solenoid operated directional valve is set up.
Further, between the outlet line and the return line of valve group of described manual pump and oil pump, direct-acting overflow valve is set up.
Further, in described hydraulic system, a set of pumping plant of additional, valve group and pull bar oil cylinder, engineering oil cylinder and hydraulic motor are as standby hydraulics, and the pumping plant in described standby hydraulics is communicated with by hand-operated direction valve for subsequent use with valve group with the pumping plant in described hydraulic system with valve group.
The present invention is owing to taking technique scheme, and it has following beneficial effect:
The present invention can realize closedown fast and safely when subway tunnel is intake; Can meet at ordinary times by driven by power pumping plant, actuating doors; Also there is the feature that door still can normally be opened when a set of pumping plant lost efficacy; Supply of electric power can also be met when interrupting, both can operate at machine room the keying that manual pump completes door, the operation of the keying that can adopt again traditional manual mode of operation door in interval totally 2 kinds of patterns.
Accompanying drawing explanation
Fig. 1 is that hydraulic flat is opened rotatable protection airtight and to be held concurrently the structural representation of Flood gate.
Fig. 2 be hydraulic flat open rotatable protection airtight hold concurrently Flood gate be in unlatching or closed condition time schematic top plan view.
Fig. 3 is the enlarged diagram of C part in Fig. 1.
Fig. 4 is the enlarged diagram of D part in Fig. 2.
Fig. 5 is the schematic diagram of blocking device.
Fig. 6 is that hydraulic flat is opened rotatable protection airtight and to be held concurrently the schematic diagram of hydraulic system of Flood gate.
Fig. 7 is the schematic diagram of pumping plant.
Fig. 8 is the schematic diagram of valve group.
Fig. 9 is that hydraulic flat is opened the hold concurrently hydraulic system of Flood gate of rotatable protection airtight and comprised the schematic diagram of standby hydraulics.
Detailed description of the invention
Below in conjunction with accompanying drawing, content of the present invention is described further.
As depicted in figs. 1 and 2, hydraulic flat of the present invention is opened rotatable protection airtight and to be held concurrently Flood gate, be arranged in subway main track interval, there is airtight cutting function, can realize closedown fast and safely when subway tunnel is intake, it comprises door leaf 1, steel door frame 2, hinge page 3, headstock gear 4, stopping means 5 and blocking device 6, and steel door frame 2 is fixed in body of wall 100, door leaf 1 is connected on steel door frame 2 by hinge page 3, and door leaf 1 can around hinge page 3 rotary motion; Wherein, realize described hydraulic flat when door leaf 1 turns to and fits with steel door frame 2 and open rotatable protection airtight and to hold concurrently the closedown of Flood gate, open rotatable protection airtight when door leaf 1 rotates to hold concurrently the unlatching of Flood gate away from realizing described hydraulic flat during steel door frame 2; Described headstock gear 4 rotates around hinge page 3 for promoting door leaf 1, thus door leaf 1 and steel door frame 2 is fitted or away to realize opening or closing; Door is fixed under being mainly used in door leaf 1 opening by described stopping means 5, the swing of limiting door, and bears a part of door leaf 1 gravity by this device, prevents the long-time suspension deflection of door; Described blocking device 6 is for implementing to shut and unblank by locking head motion (insert in obturator hernia or depart from obturator hernia), drive door leaf 1 to steel door frame 2 direction translation simultaneously, sealing joint strip on pressed steel door frame 2, the opening and closing that can realize door leaf 1 requires the tight requirements with door leaf and steel door frame.
In fig. 1 and 2, described headstock gear 4 comprises keying frame forearm 41, opens and closes frame postbrachium 42 and engineering oil cylinder 43, the front end opening and closing frame forearm 41 is hinged on door leaf 1, the rear end opening and closing frame forearm 41 is hinged with the front end opening and closing frame postbrachium 42, the rear end opening and closing frame postbrachium 42 is hinged on body of wall 100, engineering oil cylinder 43 can drive to open and close frame forearm 41 and open and close frame postbrachium 42 and stretch or shrink, thus can promote door leaf 1 around hinge page 3 rotary motion; As shown in the state 101 in Fig. 2, engineering oil cylinder 43 drives to open and close frame forearm 41 and open and close frame postbrachium 42 and stretches, headstock gear 4 promotes door leaf 1 and rotates around hinge page 3 and fit with steel door frame 2, thus realizes described hydraulic flat and open rotatable protection airtight and to hold concurrently the closedown of Flood gate; As shown in the state 102 in Fig. 2, engineering oil cylinder 43 drives to open and close frame forearm 41 and open and close frame postbrachium 42 and shrinks, headstock gear 4 promote door leaf 1 around hinge page 3 rotate with steel door frame 2 away from, thus realize described hydraulic flat and open rotatable protection airtight and to hold concurrently the unlatching of Flood gate.
As shown in Figure 3 and Figure 4, stopping means 5 comprises limited post 51, pull bar oil cylinder 52, latch 53, connection seat 54, chain steady pin 55 and limited post guide pin bushing 56, and pull bar oil cylinder 52 and limited post guide pin bushing 56 are fixed on door leaf 1; Wherein, by limited post 51 being inserted in stop bearing (not shown) the swing fixed by door with limiting door, pull bar oil cylinder 52 carrys out transferring energy for utilizing the pressure energy of liquid, rely on the flexible lifting controlling limited post 51 of its piston rod, latch 53 is for linking together connection seat 54 and chain steady pin 55, and limited post guide pin bushing 56 is for guide and limit post 51.The course of work of described stopping means 5 under action of closing the door is as follows: in situation of surging, and the pull bar oil cylinder 52 be arranged on door leaf 1 sends signal after limited post 51 and chain steady pin 55 being extracted, and pull bar oil cylinder 52 quits work and locking; Under manual case, first latch 53 is extracted, more manual limited post 51 and chain steady pin 55 to be extracted, can complete and unlock stopping means 5; The door opening action of described stopping means 5 is the backwards of action of closing the door.
As shown in Figure 5, blocking device 6 of the present invention comprises locking and handwheel 61, chain 62, drive sprocket 63, driven sprocket 64, hydraulic motor 65 with driving locking, hydraulic motor 65 and handwheel 61 are arranged on door leaf 1, hydraulic motor 65 drives driven sprocket 64 to rotate by drive sprocket 63 and chain 62, thus drive handwheel 64 to rotate the locking and the unlocking that realize door leaf 1, and drive door leaf 1 to steel door frame 2 direction translation simultaneously, sealing joint strip on pressed steel door frame 2, the opening and closing that can realize door leaf 1 requires the tight requirements with door leaf and steel door frame.
Simultaneously, in order to realize described hydraulic flat open rotatable protection airtight hold concurrently Flood gate can closedown fast and safely when subway tunnel is intake, and electric control operation and manually operated demand can be met simultaneously, the present invention also provides a kind of this hydraulic flat that is applied in open the hydraulic system that rotatable protection airtight holds concurrently in Flood gate, and described engineering oil cylinder 43, pull bar oil cylinder 52 and hydraulic motor 65 are driven by described hydraulic system.Particularly, as shown in Figure 6, hydraulic system of the present invention comprises pumping plant 10 and valve group 11.
As shown in Figure 7, pumping plant 10 of the present invention comprises fuel tank 101, manual pump 102, motor 103, oil pump 104, oil-suction oil filter 105 and return oil filter 106, motor 103 is for driving oil pump 104, manual pump 102 and oil pump 104 are arranged in parallel, manual pump 102 is communicated with fuel tank 101 by oil-suction oil filter 105 with the inlet line 107 of oil pump 104, manual pump 102 is communicated with the in-line 116 of valve group with the outlet line 108 of oil pump 104, and the return line 117 of valve group is communicated with fuel tank 101 by return oil filter 106.
As shown in Figure 8, valve group 11 of the present invention comprises first group of valve, 111, second group of valve 112 and the 3rd group of valve 113, first group of valve 111, second group of valve 112 of being arranged in parallel and the 3rd group of valve 113 is formed by a solenoid operated directional valve 114 and a hand-operated direction valve 115 parallel connection overlap joint respectively.
Wherein, pull bar oil cylinder 52 is connected with return line 117 with the in-line 116 of valve group 11 with first group of valve 111 by the first 2/2-way manual conical valve 521, first stacking type hydraulic control check valve 522 set gradually, and is provided with first throttle valve 118 between first group of valve 111 and the in-line 116 of valve group 11.
Wherein, engineering oil cylinder 43 is connected with return line 117 with the in-line 116 of valve group 11 with second group of valve 112 by the second 2/2-way manual conical valve 431, second stacked unidirectional throttle valve 432, second stacking type hydraulic control check valve 433 set gradually.
Wherein, hydraulic motor 65 is connected with return line 117 with the in-line 116 of valve group 11 with the 3rd group of valve 113 by the 3rd 2/2-way manual conical valve 651 set gradually, and the 3rd group is provided with second throttle 119 between valve 113 and the in-line 116 of valve group 11.
In the figure 7, air filter 12, content gauge 13, liquid level relay 14 and electric contact thermometer 15 is also provided with in described fuel tank 101; Wherein, air filter 12 primary responsibility removes the granulometric impurity in air, fuel head (the highest pasta and minimum pasta) in fuel tank is observed in the effect of content gauge 13, liquid level relay 14 is for controlling the height of liquid level, when liquid level reach a certain height, liquid level relay 14 will action to cut off the electricity supply, electric contact thermometer 15 is for automatically controlling temperature and reporting to the police.Meanwhile, the outlet line 108 of described manual pump 102 and oil pump 104 is also provided with pressure meter 16, pressure meter switch 17 and pressure switch 18; Wherein, pressure meter 16 is for demonstrating oily overpressure; pressure meter switch 17 is mainly used in the connection of cut-out pressure table 16 and oil circuit; or regulate opening degree size to play interception; the table 16 that eases off the pressure sharply is beated, and prevents pressure meter 16 from damaging, and pressure switch 18 is for converting the pressure signal of fluid to the signal of telecommunication; when oil liquid pressure reaches the set pressure of pressure switch 18, its can auto-breaking to realize protection to system.
Further, between the outlet line 108 and the return line 117 of valve group 11 of described oil pump 104, set up solenoid operated directional valve 19, solenoid operated directional valve 19 can control the flow direction of fluid, and namely control fluid flows to executive component and still directly flows back to fuel tank 101.Between the outlet line 108 and the return line 117 of valve group 11 of described manual pump 102 and oil pump 104, set up direct-acting overflow valve 20, direct-acting overflow valve 20, for the protection of executive component overload, is protected hydraulic system.
As shown in Figure 9, in order to make hydraulic system of the present invention can realize electric-controlled hydraulic start-up operation and manual operation two kinds of patterns simultaneously, manual operation mode can when power circuit is impaired as subsequent use; Preferably, in described hydraulic system, a set of pumping plant 10 of additional, valve group 11 and pull bar oil cylinder 52, engineering oil cylinder 43 and hydraulic motor 65 are as standby hydraulics 120, and the pumping plant 10 in described standby hydraulics 120 is communicated with by hand-operated direction valve 21 for subsequent use with valve group 11 with the pumping plant 10 in described hydraulic system with valve group 11; There is the mutually redundant subsystem of two covers in hydraulic system of the present invention like this, when a set of inefficacy, can be switched to another set of continuation driving work.
Above content is opened rotatable protection airtight Flood gate of holding concurrently to hydraulic flat of the present invention and is specifically described; and in conjunction with the accompanying drawings; but the present invention is not by the limitation of detailed description of the invention content described above; the any improvement carried out according to technical essential of the present invention so all, equivalent modifications and replacement etc., all belong to the scope of protection of the invention.

Claims (6)

1. a hydraulic flat is opened rotatable protection airtight and to be held concurrently Flood gate, comprise door leaf, steel door frame, hinge page, headstock gear, stopping means and blocking device, steel door frame is fixed in body of wall, door leaf is connected on steel door frame by hinge page, described headstock gear comprises keying frame forearm, open and close frame postbrachium and engineering oil cylinder, the front end opening and closing frame forearm is hinged on door leaf, the rear end opening and closing frame forearm is hinged with the front end opening and closing frame postbrachium, the rear end opening and closing frame postbrachium is hinged on body of wall, engineering oil cylinder can drive to open and close frame forearm and open and close frame postbrachium and stretch or shrink, thus door leaf can be promoted around hinge page rotary motion, stopping means comprises limited post, pull bar oil cylinder, latch, connection seat, chain steady pin and limited post guide pin bushing, and pull bar oil cylinder and limited post guide pin bushing are fixed on door leaf, blocking device comprises locking and drives handwheel, chain, drive sprocket, driven sprocket, the hydraulic motor of locking, and hydraulic motor and handwheel are arranged on door leaf, and hydraulic motor is rotated by drive sprocket and chain-driving driven sprocket, described engineering oil cylinder, pull bar oil cylinder and hydraulic motor are driven by hydraulic system, it is characterized in that:
Described hydraulic system comprises pumping plant and valve group, described pumping plant comprises fuel tank, manual pump, motor, oil pump, oil-suction oil filter and return oil filter, motor is for driving oil pump, manual pump and oil pump are arranged in parallel, manual pump is communicated with fuel tank by oil-suction oil filter with the inlet line of oil pump, manual pump is communicated with the in-line of valve group with the outlet line of oil pump, and the return line of valve group is communicated with fuel tank by return oil filter; Valve group comprises the first group of valve be arranged in parallel, second group of valve and the 3rd group of valve, and first group of valve, second group of valve and the 3rd group of valve are formed by a solenoid operated directional valve and a hand-operated direction valve parallel connection overlap joint respectively; Pull bar oil cylinder is connected with return line with the in-line of valve group with first group of valve by the first 2/2-way manual conical valve of setting gradually, the first stacking type hydraulic control check valve, is provided with first throttle valve between first group of valve and the in-line of valve group; Engineering oil cylinder is connected with return line with the in-line of valve group with second group of valve by the second 2/2-way manual conical valve of setting gradually, the second stacked unidirectional throttle valve, the second stacking type hydraulic control check valve; Hydraulic motor is connected with return line with the in-line of valve group with the 3rd group of valve by the 3rd 2/2-way manual conical valve set gradually, and the 3rd group is provided with second throttle between valve and the in-line of valve group.
2. hydraulic flat according to claim 1 is opened rotatable protection airtight and to be held concurrently Flood gate, it is characterized in that: be also provided with air filter, content gauge, liquid level relay and electric contact thermometer in described fuel tank.
3. hydraulic flat according to claim 1 is opened rotatable protection airtight and to be held concurrently Flood gate, it is characterized in that: in the outlet line of described manual pump and oil pump, be also provided with pressure meter, pressure meter switch and pressure switch.
4. hydraulic flat according to claim 1 is opened rotatable protection airtight and to be held concurrently Flood gate, it is characterized in that: between the outlet line and the return line of valve group of described oil pump, set up a solenoid operated directional valve.
5. hydraulic flat according to claim 1 is opened rotatable protection airtight and to be held concurrently Flood gate, it is characterized in that: between the outlet line and the return line of valve group of described manual pump and oil pump, set up direct-acting overflow valve.
6. hydraulic flat according to claim 1 is opened rotatable protection airtight and to be held concurrently Flood gate, it is characterized in that: in described hydraulic system, a set of pumping plant of additional, valve group and pull bar oil cylinder, engineering oil cylinder and hydraulic motor are as standby hydraulics, and the pumping plant in described standby hydraulics is communicated with by hand-operated direction valve for subsequent use with valve group with the pumping plant in described hydraulic system with valve group.
CN201410610391.9A 2014-11-04 2014-11-04 Hydraulic flat is opened rotatable protection airtight and to be held concurrently Flood gate Active CN104358239B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104068A (en) * 2018-01-04 2018-06-01 天津大学 A kind of new reservoir gate member
CN108966895A (en) * 2018-05-25 2018-12-11 江苏中泽汽车科技有限公司 A kind of greening combined maintenance truck

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562944A1 (en) * 1984-04-13 1985-10-18 Quenderff Jean Philippe Device preventing water from penetrating into residences located in areas which may experience floods
CN201531182U (en) * 2009-09-24 2010-07-21 浙江华汇机械装备有限公司 Hydraulic driving device for vertically-rotated flood-proof protection door
CN201599060U (en) * 2009-09-24 2010-10-06 中国人民解放军总参谋部工程兵第四设计研究院 Hydraulic vertical-rotatable type anti-submerging protective closed isolation door in metro sections
CN203796058U (en) * 2014-01-29 2014-08-27 中国人民解放军总参谋部工程兵第四设计研究院 Protective air-tight flood gate opened and closed in swing mode in metro section
CN204311414U (en) * 2014-11-04 2015-05-06 中国建筑标准设计研究院有限公司 Flat open rotatable protection airtight and to hold concurrently Flood gate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562944A1 (en) * 1984-04-13 1985-10-18 Quenderff Jean Philippe Device preventing water from penetrating into residences located in areas which may experience floods
CN201531182U (en) * 2009-09-24 2010-07-21 浙江华汇机械装备有限公司 Hydraulic driving device for vertically-rotated flood-proof protection door
CN201599060U (en) * 2009-09-24 2010-10-06 中国人民解放军总参谋部工程兵第四设计研究院 Hydraulic vertical-rotatable type anti-submerging protective closed isolation door in metro sections
CN203796058U (en) * 2014-01-29 2014-08-27 中国人民解放军总参谋部工程兵第四设计研究院 Protective air-tight flood gate opened and closed in swing mode in metro section
CN204311414U (en) * 2014-11-04 2015-05-06 中国建筑标准设计研究院有限公司 Flat open rotatable protection airtight and to hold concurrently Flood gate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104068A (en) * 2018-01-04 2018-06-01 天津大学 A kind of new reservoir gate member
CN108966895A (en) * 2018-05-25 2018-12-11 江苏中泽汽车科技有限公司 A kind of greening combined maintenance truck

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