CN216951094U - Structure of intaking is prevented to hydraulic cylinder anti-overflow oil pollution under water - Google Patents
Structure of intaking is prevented to hydraulic cylinder anti-overflow oil pollution under water Download PDFInfo
- Publication number
- CN216951094U CN216951094U CN202220754074.4U CN202220754074U CN216951094U CN 216951094 U CN216951094 U CN 216951094U CN 202220754074 U CN202220754074 U CN 202220754074U CN 216951094 U CN216951094 U CN 216951094U
- Authority
- CN
- China
- Prior art keywords
- oil
- end cover
- water
- cylinder
- hydraulic
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
- Actuator (AREA)
Abstract
The utility model provides an oil spill pollution and water inflow prevention structure of an underwater hydraulic oil cylinder, which comprises the hydraulic oil cylinder, wherein the hydraulic oil cylinder is fixedly arranged on a water retaining door body, an oil spill prevention waterproof end cover for preventing oil spill and water leakage is arranged at the top end of the hydraulic oil cylinder, and the oil spill prevention waterproof end cover is connected with an oil water monitoring alarm device. The structure can prevent hydraulic oil environmental pollution and water inflow emulsification caused by damage of the V-shaped sealing element of the underwater hydraulic oil cylinder, can quickly and conveniently monitor and check hydraulic oil leakage and water inflow conditions of the underwater hydraulic oil cylinder, and can assist in judging leakage parts of the underwater hydraulic oil cylinder.
Description
Technical Field
The utility model relates to an oil spill pollution and water inflow prevention structure of an underwater hydraulic oil cylinder, and belongs to the field of underwater hydraulic oil cylinders.
Background
The hydraulic cylinder of underwater work, because the regular extension or retraction of hydraulic cylinder piston rod, can cause the V type sealing member of hydraulic cylinder end cover department to appear wearing and tearing scheduling problem, lead to hydraulic oil in the hydraulic cylinder to flow to the waters of surrounding, cause the problem such as environmental pollution, can also cause the water of waters of surrounding to get into the hydraulic cylinder simultaneously, cause the problem such as hydraulic oil emulsification in the hydraulic cylinder, seriously influence the equipment reliability of hydraulic cylinder, the hydraulic cylinder of underwater work is because operational environment is special, it is very inconvenient to the monitoring of these oil leak polluted environment of hydraulic cylinder and hydraulic oil emulsification scheduling problem of intaking, also need extensive construction such as extra waters drain-off inspection or hydraulic cylinder demolition and hang out inspection to the inspection confirmation of these problems, seriously influence the normal operating of hydraulic cylinder under water.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an anti-oil-spill-pollution and anti-water-inflow structure of an underwater hydraulic oil cylinder, which can prevent the environmental pollution and water inflow emulsification of hydraulic oil caused by the damage of a V-shaped sealing element of the underwater hydraulic oil cylinder, can quickly and conveniently monitor and check the hydraulic oil leakage and water inflow conditions of the underwater hydraulic oil cylinder, and can assist in judging the leakage part of the underwater hydraulic oil cylinder.
In order to achieve the technical characteristics, the utility model aims to realize that: the utility model provides an underwater hydraulic cylinder prevents oil spilling pollution and prevents structure of intaking, it includes hydraulic cylinder, and hydraulic cylinder fixed mounting is on the manger plate door body, and the waterproof end cover of oil spilling prevention that is used for preventing the oil spilling and leaks is installed on hydraulic cylinder's top, and the waterproof end cover of oil spilling prevention is connected with profit monitoring alarm device.
The hydraulic cylinder comprises a cylinder body, an upper end cover is installed in a lower cavity of the cylinder body, a lower end cover is installed in an upper cavity of the cylinder body, a piston is installed in the cylinder body, a piston rod is fixed on the piston, the piston is matched with an inner cavity of the cylinder body, the piston rod is matched with the lower end cover, two sides of the lower end cover are rotatably supported on a bearing support through a supporting pin shaft, and the bearing support is fixed on the inner side wall of a water retaining door body.
The water retaining door body comprises support ribbed plates which are arranged in parallel, a sealing bottom plate is fixed at the bottom ends of the support ribbed plates, and a water area and a water-free area are formed by the support ribbed plates and the sealing bottom plate together.
The oil spill prevention waterproof end cover comprises an oil cylinder forward sealing end cover, a liquid collecting tank and a plurality of through holes are formed in the oil cylinder forward sealing end cover, an oil cylinder stroke detection sensor is installed in one through hole, a hydraulic hose is installed in the other through hole, a reverse sealing gland is installed at the upper end of the oil cylinder forward sealing end cover, a reverse sealing end cover is installed at the upper end of the reverse sealing gland, a pressing plate is installed at the upper end of the reverse sealing end cover, and the oil spill prevention waterproof end cover is fixedly installed on a hydraulic oil cylinder through bolts.
The oil-water monitoring alarm device comprises an oil-water collecting pipeline, an oil-water collecting box is placed below the oil-water collecting pipeline, a liquid level monitoring pipe is installed on the side of the oil-water collecting box, a liquid level detection device is installed at the upper end of the liquid level monitoring pipe, and the liquid level detection device transmits an internal liquid level detection switch signal to the control station through a cable.
The utility model has the following beneficial effects:
1. through the arranged oil spill-proof and water-proof end cover, the forward sealing end cover and the reverse sealing end cover of the oil cylinder form a bidirectional sealing combined structure, and the purposes of preventing hydraulic oil of the hydraulic oil cylinder from flowing into surrounding water areas and preventing hydraulic oil of the hydraulic oil cylinder from flowing into the surrounding water areas are achieved.
2. Set up hydro-cylinder forward end cover through, and collect the tube coupling through hydraulic hose and profit, make hydro-cylinder forward end cover inner chamber remain zero pressure all the time, guarantee that hydro-cylinder forward end cover inner chamber is less than hydraulic cylinder epicoele and surrounding environment water pressure all the time, guarantee that hydraulic cylinder is under any operating condition under water, hydraulic cylinder's the sealed reverse V type of forward V type and reverse end cover can both be in normal operating condition and have better compression volume, simultaneously when hydraulic cylinder's the sealed reverse V type of forward V type or reverse end cover is sealed when damaged, can guarantee that the hydraulic oil of seepage or the water that flows in can only flow into in the profit collecting box through profit collection pipeline.
3. The external stroke encoder for detecting the displacement of the piston rod of the hydraulic oil cylinder can be installed on the lower end cover of the hydraulic oil cylinder through the arranged oil cylinder forward sealing end cover, the external stroke encoder for detecting the displacement of the piston rod of the hydraulic oil cylinder can be installed, the external stroke encoder can also be used without plugging, the functions of oil cylinder sealing and stroke detection can be realized, the structure is exquisite, the size is small, the installation is convenient, and the external stroke encoder is suitable for most hydraulic oil cylinders and stroke detection modes of different types.
4. Through the profit monitoring alarm device who sets up, the convenient anhydrous position of inspection is installed in the tour to the profit monitoring alarm device, be connected through hose and underwater hydraulic cylinder's hydro-cylinder forward end cover, need waters to drain or hydraulic cylinder to demolish the work of hanging out and carrying out seepage or the inspection of problem reason of intaking in the past, can directly perceivedly now, conveniently, carry out daily supervision at any time, through this kind of daily supervision can also convenient judgement and decision-making underwater hydraulic cylinder's performance state trend, reduce underwater hydraulic cylinder equipment inspection work load and consuming time greatly.
5. Through the waterproof end cover of oil spilling prevention and the profit monitoring alarm device who sets up, the hydraulic oil seepage condition that hydraulic cylinder lower end cover V type is sealed under water is kept watch on through the profit monitoring alarm device who installs at anhydrous position, has distinguished hydraulic cylinder lower end cover static seal and V type sliding seal structure, and the seepage position of epicoele when the hydraulic cylinder piston rod retracts can't be distinguished through the monitoring mode of surface of water floating oil in the past, judgement seepage position that now can be convenient through this kind of structure.
6. The device has set up profit monitoring alarm device, can realize the monitoring alarm of hydraulic cylinder seepage and the state of intaking under water, can feed back hydraulic cylinder seepage automatically and the condition of intaking, and through adjusting the liquid level detection switch position in the liquid level detection device, can effectually be according to all kinds of hydraulic cylinder equipment discrepancy adjustment alarm values under water, all kinds of hydraulic cylinder states under water are mastered meticulously, sensitively.
7. The device overall structure is exquisite, simple to operate, and the function of realization is abundant, the practicality is strong, is fit for the hydraulic cylinder use under water at all kinds of stroke detection methods, has improved hydraulic cylinder's environmental protection performance under water and has safeguarded the convenience.
Drawings
The utility model is further illustrated by the following figures and examples.
FIG. 1 is a schematic view of the whole structure of the underwater hydraulic oil cylinder for preventing oil spill and water.
FIG. 2 is a schematic structural diagram of a hydraulic oil cylinder in the present invention.
Fig. 3 is a schematic structural view of the oil-spill-proof and water-proof end cap of the present invention.
Fig. 4 is a structural sectional view of the oil spill prevention and water prevention end cap of the present invention.
FIG. 5 is a schematic structural diagram of the oil-water monitoring alarm device and the water-retaining door body in the utility model.
In the figure: the device comprises a hydraulic oil cylinder 1, an oil spill prevention and water prevention end cover 2, an oil water monitoring alarm device 3 and a water retaining door body 4;
the device comprises an oil cylinder forward sealing end cover 201, an oil cylinder stroke detection sensor 202, a hydraulic hose 203, a reverse sealing gland 204, a reverse sealing end cover 205 and a pressure plate 206;
an oil-water collecting pipeline 301, an oil-water collecting box 302, a liquid level monitoring pipe 303 and a liquid level detecting device 304.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, an underwater hydraulic cylinder oil spill pollution prevention and water inflow prevention structure comprises a hydraulic cylinder 1, wherein the hydraulic cylinder 1 is fixedly arranged on a water retaining door body 4, an oil spill prevention and water leakage prevention waterproof end cover 2 for preventing oil spill and water leakage is arranged at the top end of the hydraulic cylinder 1, and the oil spill prevention and water leakage prevention waterproof end cover 2 is connected with an oil-water monitoring alarm device 3. Through the arranged oil spill prevention and water prevention end cover 2, a bidirectional sealing combined structure is formed through the oil cylinder forward sealing end cover 201 and the oil cylinder reverse sealing end cover 205, and the purposes of preventing hydraulic oil of the hydraulic oil cylinder from flowing into surrounding water areas and preventing hydraulic oil of the hydraulic oil cylinder from flowing into the hydraulic oil cylinder in the surrounding water areas are achieved.
Further, the hydraulic cylinder 1 includes a cylinder body 101, an upper end cover 102 is installed in a lower cavity of the cylinder body 101, a lower end cover 103 is installed in an upper cavity of the cylinder body 101, a piston is installed inside the cylinder body 101, a piston rod 104 is fixed on the piston, the piston is matched with the inner cavity of the cylinder body 101, the piston rod 104 is matched with the lower end cover 103, two sides of the lower end cover 103 are rotatably supported on a bearing support 105 through a support pin shaft, and the bearing support 105 is fixed on the inner side wall of the water-retaining door body 4. Through adopting foretell hydraulic cylinder 1 can be applicable to the environment under water, has guaranteed that it can play fine waterproof leak protection oily effect.
Further, the water-retaining door body 4 comprises support ribs 401 arranged in parallel, a sealing bottom plate 402 is fixed at the bottom end of each support rib 401, and the support ribs 401 and the sealing bottom plate 402 form a water-containing area and a water-free area together.
Further, the oil spill prevention waterproof end cover 2 comprises an oil cylinder forward sealing end cover 201, a liquid collecting tank and a plurality of through holes are formed in the oil cylinder forward sealing end cover 201, an oil cylinder stroke detection sensor 202 is installed in one through hole, a hydraulic hose 203 is installed in the other through hole, a reverse sealing gland 204 is installed at the upper end of the oil cylinder forward sealing end cover 201, a reverse sealing end cover 205 is installed at the upper end of the reverse sealing gland 204, a pressing plate 206 is installed at the upper end of the reverse sealing end cover 205, and the oil spill prevention waterproof end cover 2 is fixedly installed on the hydraulic oil cylinder 1 through bolts. By adopting the oil cylinder forward sealing end cover 201, and be connected with the oil water collecting pipeline 301 through the hydraulic hose 203, make the oil cylinder forward sealing end cover 201 inner chamber remain zero pressure all the time, guarantee that the oil cylinder forward sealing end cover 201 inner chamber is less than hydraulic cylinder upper chamber and surrounding environment water pressure all the time, guarantee that hydraulic cylinder is under any operating condition under water, hydraulic cylinder's forward V type is sealed can both be in normal operating condition and have better compression capacity with reverse V type of reverse sealing end cover 205, when hydraulic cylinder's forward V type is sealed or reverse V type of reverse sealing end cover 205 is sealed when damaged appearing, can guarantee that the hydraulic oil of seepage or the water that flows in can only flow into in the oil water collecting box 302 through the oil water collecting pipeline 301.
In addition, through adopting in this application hydro-cylinder forward seal end cover 201 to install at hydraulic cylinder's lower extreme cover, can install the external stroke encoder who detects hydraulic cylinder piston rod displacement, also can the shutoff not use, can realize the function that hydro-cylinder seals and stroke detected, the structure is exquisite, the volume is less, simple to operate, and is applicable to the stroke detection mode of most hydraulic cylinder and different grade type.
Further, the oil and water monitoring and alarming device 3 comprises an oil and water collecting pipeline 301, an oil and water collecting box 302 is placed below the oil and water collecting pipeline 301, a liquid level monitoring pipe 303 is installed on the side of the oil and water collecting box 302, a liquid level detection device 304 is installed at the upper end of the liquid level monitoring pipe 303, and the liquid level detection device 304 transmits the internal liquid level detection switch signal to the control station through a cable. The oil-water monitoring alarm device 3 monitors the hydraulic oil leakage condition of the V-shaped seal of the lower end cover of the underwater hydraulic oil cylinder through the oil-water monitoring alarm device arranged at the waterless part, the static seal and the V-shaped sliding seal structure of the lower end cover of the hydraulic oil cylinder are distinguished, the leakage part of the upper cavity when the piston rod of the hydraulic oil cylinder retracts cannot be distinguished through the monitoring mode of floating oil on the water surface in the prior art, and the leakage part can be conveniently judged through the structure.
Preferably, the oil-water monitoring alarm device is arranged at a waterless part convenient for tour inspection, and is connected with the cylinder forward sealing end cover of the underwater hydraulic cylinder through the hose, so that compared with the work of draining water in a water area or removing and hanging the hydraulic cylinder out for checking the leakage or water inlet problem reason, the daily monitoring can be visually, conveniently and randomly carried out, the performance state trend of the underwater hydraulic cylinder can be conveniently judged and decided through the daily monitoring, and the inspection workload and the time consumption of underwater hydraulic cylinder equipment are greatly reduced.
Moreover, by arranging the oil-water monitoring alarm device, the monitoring alarm of the leakage and water inlet states of the underwater hydraulic oil cylinder can be realized, the leakage and water inlet conditions of the hydraulic oil cylinder can be automatically fed back, and the alarm value can be effectively adjusted according to the difference of various underwater hydraulic oil cylinder devices by adjusting the position of a liquid level detection switch in the liquid level detection device, so that the states of various underwater hydraulic oil cylinders can be mastered finely and sensitively.
The working process and principle of the utility model are as follows:
the method for preventing the oil spill and the water of the hydraulic oil cylinder by using the underwater hydraulic oil cylinder oil spill and water preventing structure comprises the following steps:
the method comprises the following steps: when the underwater hydraulic oil cylinder 1 is in a normal state, when the piston and the piston rod 104 perform retraction, the oil cylinder stroke detection sensor 202 transmits an action position signal of the hydraulic oil cylinder 1 to a control station through a cable, the pressure of the upper cavity of the hydraulic oil cylinder 1 is in a high-pressure state, the pressure of the inner cavity of the forward sealing end cover 201 of the oil cylinder is always zero, and a V-shaped sealing element in the lower end cover 103 tightly pressed by the forward sealing end cover 201 of the oil cylinder is in a normal working state, so that oil in the hydraulic oil cylinder 1 is prevented from leaking; the pressure in the inner cavity of the forward sealing end cover 201 of the hydraulic cylinder is always zero and is smaller than the water pressure in the environment around the hydraulic cylinder 1, and the V-shaped sealing element in the reverse sealing end cover 205 is also in a normal working state, so that the water body in the environment around the hydraulic cylinder 1 is prevented from entering the oil spill prevention waterproof end cover 2;
step two: when the underwater hydraulic oil cylinder 1 is in a normal state, when the piston and the piston rod 104 perform extending actions, the oil cylinder stroke detection sensor 202 transmits action position signals of the hydraulic oil cylinder 1 to a control station through a cable, the pressure of an upper cavity of the hydraulic oil cylinder 1 is in a low-pressure state, the pressure of an inner cavity of the forward sealing end cover 201 of the oil cylinder is always zero, a V-shaped sealing element in a lower end cover 103 tightly pressed by the forward sealing end cover 201 of the oil cylinder is in a normal working state, and oil in the hydraulic oil cylinder 1 is prevented from leaking; the pressure in the inner cavity of the forward sealing end cover 201 of the hydraulic cylinder is always zero and is smaller than the water pressure in the environment around the hydraulic cylinder 1, and the V-shaped sealing element in the reverse sealing end cover 205 is also in a normal working state, so that the water body in the environment around the hydraulic cylinder 1 is prevented from entering the oil spill prevention waterproof end cover 2;
step three: when the underwater hydraulic oil cylinder 1 is in an abnormal state, the V-shaped sealing element in the lower end cover 103 is damaged, and hydraulic oil in the hydraulic oil cylinder 1 flows out to a liquid collecting tank of the oil cylinder positive sealing end cover 201 through the lower end cover 103; the pressure of the inner cavity of the oil cylinder forward sealing end cover 201 is always zero and is smaller than the water pressure in the surrounding environment of the hydraulic oil cylinder 1, at the moment, a V-shaped sealing element in the reverse sealing end cover 205 is in a normal working state, the hydraulic oil flowing into a liquid collecting tank in the oil cylinder forward sealing end cover 201 flows out to a surrounding water area and is blocked, the hydraulic oil flows into an oil-water collecting tank 302 through a hydraulic hose 203 with zero pressure and an oil-water collecting pipeline 301, the oil leakage condition of the hydraulic oil cylinder 1 caused by the damage of the V-shaped sealing element in the lower end cover 103 can be observed under any condition through a liquid level monitoring pipe 303, and meanwhile, a liquid level detection device 304 carries out detection alarm prompt on the oil leakage condition of the hydraulic oil cylinder 1;
step four: when the underwater hydraulic oil cylinder 1 is in a normal state, the V-shaped sealing element in the reverse sealing end cover 205 is damaged, and the water body in the environmental water area sequentially flows into a liquid collecting tank in the reverse sealing end cover 205 through the pressing plate 206, the reverse sealing end cover 205 and the reverse sealing gland 204; the pressure of the inner cavity of the oil cylinder forward sealing end cover 201 is always zero and is smaller than the pressure of the upper cavity of the hydraulic oil cylinder 1, a V-shaped sealing element in the lower end cover 103 compressed by the oil cylinder forward sealing end cover 201 is in a normal working state, a water body flowing into a liquid collecting tank in the oil cylinder forward sealing end cover 201 flows into the hydraulic oil cylinder 1 to be blocked, the water body flows into an oil-water collecting box 302 through a hydraulic hose 203 and an oil-water collecting pipeline 301, the water inlet condition caused by the damage of the V-shaped sealing element in the reverse sealing end cover 205 can be observed under any condition through a liquid level monitoring pipe 303, and meanwhile, the liquid level detection device 304 detects and gives an alarm to the water inlet condition.
Claims (5)
1. The utility model provides an underwater hydraulic cylinder prevents oil spilling pollution and prevents structure of intaking, its characterized in that, it includes hydraulic cylinder (1), and hydraulic cylinder (1) fixed mounting is on the manger plate door body (4), and the top of hydraulic cylinder (1) is installed and is used for preventing oil spilling and the waterproof end cover of preventing oil spilling (2) of leaking, and the waterproof end cover of preventing oil spilling (2) are connected with profit monitoring alarm device (3).
2. The underwater hydraulic ram oil spill pollution and water inflow prevention structure as claimed in claim 1, wherein: the hydraulic cylinder (1) comprises a cylinder body (101), an upper end cover (102) is installed on a lower cavity of the cylinder body (101), a lower end cover (103) is installed on an upper cavity of the cylinder body (101), a piston is installed inside the cylinder body (101), a piston rod (104) is fixed on the piston, the piston is matched with an inner cavity of the cylinder body (101), the piston rod (104) is matched with the lower end cover (103), two sides of the lower end cover (103) are rotatably supported on a bearing support (105) through a supporting pin shaft, and the bearing support (105) is fixed on the inner side wall of a water retaining door body (4).
3. The underwater hydraulic ram oil spill pollution and water inflow prevention structure as claimed in claim 1 or 2, wherein: the water retaining door body (4) comprises support rib plates (401) which are arranged in parallel, a sealing bottom plate (402) is fixed at the bottom ends of the support rib plates (401), and a water area and a water-free area are formed by the support rib plates (401) and the sealing bottom plate (402) together.
4. The underwater hydraulic ram oil spill pollution and water inflow prevention structure as claimed in claim 1, wherein: the oil spill prevention waterproof end cover (2) comprises an oil cylinder forward sealing end cover (201), a liquid collecting tank and a plurality of through holes are formed in the oil cylinder forward sealing end cover (201), an oil cylinder stroke detection sensor (202) is installed in one through hole, a hydraulic hose (203) is installed in the other through hole, a reverse sealing gland (204) is installed at the upper end of the oil cylinder forward sealing end cover (201), a reverse sealing end cover (205) is installed at the upper end of the reverse sealing gland (204), a pressing plate (206) is installed at the upper end of the reverse sealing end cover (205), and the oil spill prevention waterproof end cover (2) is fixedly installed on the hydraulic oil cylinder (1) through bolts.
5. The underwater hydraulic ram oil spill pollution and water inflow prevention structure as claimed in claim 1, wherein: the oil-water monitoring alarm device (3) comprises an oil-water collecting pipeline (301), an oil-water collecting box (302) is placed below the oil-water collecting pipeline (301), a liquid level monitoring pipe (303) is installed on the side of the oil-water collecting box (302), a liquid level detection device (304) is installed at the upper end of the liquid level monitoring pipe (303), and the liquid level detection switch signal inside the liquid level detection device (304) is transmitted to a control station through a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220754074.4U CN216951094U (en) | 2022-04-02 | 2022-04-02 | Structure of intaking is prevented to hydraulic cylinder anti-overflow oil pollution under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220754074.4U CN216951094U (en) | 2022-04-02 | 2022-04-02 | Structure of intaking is prevented to hydraulic cylinder anti-overflow oil pollution under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951094U true CN216951094U (en) | 2022-07-12 |
Family
ID=82301285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220754074.4U Active CN216951094U (en) | 2022-04-02 | 2022-04-02 | Structure of intaking is prevented to hydraulic cylinder anti-overflow oil pollution under water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951094U (en) |
-
2022
- 2022-04-02 CN CN202220754074.4U patent/CN216951094U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213929955U (en) | Hydraulic pipeline for hydraulic engineering | |
| CN216951094U (en) | Structure of intaking is prevented to hydraulic cylinder anti-overflow oil pollution under water | |
| CN114635892A (en) | Oil spill prevention and water prevention structure and method for underwater hydraulic oil cylinder | |
| CN212674896U (en) | Water quality pollutant monitoring device | |
| CN207799481U (en) | A kind of anti-bath system of rail traffic underground station goat | |
| CN208937244U (en) | A kind of piston type slurries fluctuation pressure monitoring device | |
| CN216816622U (en) | Device for detecting pipeline repairing quality | |
| CN116052380A (en) | Mountain torrent early warning device | |
| CN205580561U (en) | Input type level sensor protection device suitable for monitoring of sewage water level | |
| CN212803827U (en) | Anti-leakage hydraulic oil cylinder | |
| CN212721659U (en) | Ground stake formula water level monitoring device | |
| CN114060054A (en) | Tunnel water inrush and mud inrush plugging device and method | |
| CN211623346U (en) | Anti-leakage device at pipeline joint for drilling engineering | |
| CN210398072U (en) | Water pressure measuring device for port and navigation drainage | |
| CN209703564U (en) | One kind can well before self-draining communication building office | |
| CN208757611U (en) | A kind of hyperbaric chamber for the test of umbilical cables fittings | |
| CN219694439U (en) | Leakage monitoring device for bottom of bucket groove | |
| CN214412526U (en) | Oil leakage collecting device of main pump motor and main pump motor | |
| CN221173705U (en) | Hydraulic management network sensor | |
| CN217462139U (en) | Hydrology drilling observation dual-purpose orifice device | |
| CN220304774U (en) | Waterproof coiled material waterproof tester | |
| CN219314606U (en) | Rural sewage treatment equipment | |
| CN219140523U (en) | Water supply network leakage detection device | |
| CN221547441U (en) | Split dredger oil cylinder with buffer structure | |
| CN210978975U (en) | Can detect five metals sleeve pipe of leakage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |