CN212332164U - Novel trace ink storage ware under water - Google Patents
Novel trace ink storage ware under water Download PDFInfo
- Publication number
- CN212332164U CN212332164U CN202021137411.2U CN202021137411U CN212332164U CN 212332164 U CN212332164 U CN 212332164U CN 202021137411 U CN202021137411 U CN 202021137411U CN 212332164 U CN212332164 U CN 212332164U
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- Prior art keywords
- cover
- baffle
- ink
- air box
- ink storage
- 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.)
- Withdrawn - After Issue
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 24
- 238000010790 dilution Methods 0.000 claims abstract description 23
- 239000012895 dilution Substances 0.000 claims abstract description 23
- 239000000700 radioactive tracer Substances 0.000 claims description 33
- 239000007921 spray Substances 0.000 claims description 20
- 239000004814 polyurethane Substances 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000007865 diluting Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000976 ink Substances 0.000 abstract 9
- 238000007789 sealing Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Abstract
The utility model discloses a novel trace ink reservoir under water. The utility model discloses an ink storage device, the dilution nozzle, ink storage device, the dilution nozzle links to each other through the PU pipe, ink storage device is inside to contain the spike agent and relies on the effect of memory alloy pulling force to derive the spike agent, the play china ink hole of ink storage device upper end has a check valve to prevent that water from flowing backwards into ink storage device, the play china ink hole of ink storage device passes through the input that the PU pipe inserted the dilution nozzle, the dilution nozzle is equipped with the small-size screw machine that is used for diluting the high concentration spike agent, and the spike agent after will diluting is used for dam crack detection from the output discharge. The utility model discloses compact structure, control is simple, through whole device, can realize easily that the crack of dam body under water detects.
Description
Technical Field
The utility model belongs to the field of the inkjet under water, concretely relates to novel spike ink reservoir under water.
Background
After the reservoir dam is used for a period of time, due to the influence of water flow scouring and self weight, the part of the dam body immersed under water is likely to crack to cause leakage, and the safety of the dam is seriously influenced by serious leakage. Periodic detection and treatment of cracks is an indispensable measure.
The traditional leak detection mode is that a diver carries a pipeline connected with a pressurizing device to submerge into water, once a dangerous point is found, a valve can be opened, the pressurizing device on the shore is started to drive a tracer into a target point through high pressure, and a water area near the target point can be dyed. If the crack exists, the pressure difference between the inside and the outside of the crack can force the dyed water body to flow into the crack, so that the position of the crack can be observed.
The defects of the traditional leak detection method are as follows:
1) divers need to be hired, their hiring is expensive and their diving depth is limited, only to 30-50m water depth.
2) The diver needs to carry the pipeline downwards, and if the distance is long, the pipeline is also long, and the pipeline is troublesome to carry and heavy in weight.
3) Needs to cooperate with the personnel on the shore, and has troublesome communication.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem in the background art, the utility model provides a novel trace ink storage ware under water, can be convenient carry out the tracer under water and detect.
The utility model discloses the technical scheme who adopts as follows:
the ink reservoir comprises an end cover, a baffle and an air box which are coaxially connected from top to bottom in sequence, a boss is arranged in the center of the end cover, the boss is of a hollow structure which is vertically communicated with the center of the end cover, a circle of flange radially extends from the middle of the inner side surface of the boss, and a hole is formed in the center of the flange;
a cavity enclosed by the flange and the baffle is internally provided with a one-way valve consisting of a spring and a piston, the lower end of the piston props against a through hole formed in the center of the baffle, and a compressed spring is connected between the upper end of the piston and the lower end of the flange;
the bellows is of a telescopic structure with an opening at the upper end and a closed lower end and is used for storing a tracer, an annular mounting plate which is vertically butted with the edge of the baffle plate is arranged at the opening of the bellows, and the peripheral side surface of the bellows is composed of air pipes which are arranged in a corrugated shape; a plurality of memory alloy wires are uniformly distributed in a cavity between the baffle and the air box along the circumferential direction, and the upper end and the lower end of each memory alloy wire are respectively connected with the lower end of the baffle and the bottom of the air box through annular bolts.
The ink storage device is connected with a dilution nozzle through a PU pipe, the dilution nozzle comprises a spray head, an upper cover, a middle cover, a propeller and a lower cover, the upper cover, the middle cover and the lower cover are all of hollow sleeve structures, the spray head is connected to the upper end surface of the upper cover through a bolt, and the upper cover is coaxially and fixedly connected with the lower cover through the middle cover; the spray head is of a horn mouth structure, a small opening at the upper end of the spray head is used as a spray nozzle, an annular boss is arranged at the position, close to the edge, of the lower end face of the spray head, and the outer side face of the annular boss is in fit and sealed connection with the inner side face of the upper cover; both sides of the upper cover are provided with side holes, and the bottom of the lower cover is provided with a round hole for water flow to enter; the propeller machine body is positioned in a cavity defined by the upper cover and the middle cover, the propeller machine body is arranged on the inner side surface of the middle cover through three fixing screws which are radially arranged and penetrate through the side wall of the middle cover, a propeller shaft of the propeller machine faces downwards, blades arranged on the propeller shaft are positioned in the cavity of the lower cover, and a propeller machine wire connected with the propeller machine penetrates through a side hole formed in one side of the upper cover to be connected with an electric control device; PU pipe one end links to each other with the boss upper end at end cover center, and the PU pipe other end stretches into some side openings to dilution nozzle upper cover opposite side.
The round hole size of lower cover bottom is close with the through-hole size of nozzle, prevents that screw propeller machine fast rotation from causing on a large scale vortex influence to outside rivers, avoids producing the interference to the holistic control of device. Rubber sealing rings are arranged between the outer side surface of the annular boss of the spray head and the inner side surface of the upper cover, and rubber sealing rings are arranged on the contact surface of the upper cover and the middle cover and the contact surface of the upper cover and the middle cover. The spray head is designed into a round table form, so that the high-concentration tracer can be fully mixed and diluted conveniently, and the outlet discharge flow rate is increased.
The positive and negative poles of the power supply are respectively contacted with the upper and lower ends of the memory alloy wire after being led into the air box through the waterproof joint, and the on-off of the current is controlled through the electric control equipment. The memory alloy wire can be elongated at low temperature and can be shortened after being electrified so as to play a role in compressing the air box.
The lower end face of the annular mounting plate at the opening of the air box is circumferentially and uniformly provided with a plurality of copper columns for limiting the air box to move left and right, and the copper columns are positioned on the periphery of the air box.
The tuber pipe adopts can tensile PU polyurethane material.
The diameter of the piston is larger than the aperture of the through hole in the center of the baffle.
And the lower surface of the baffle and the annular mounting plate of the air box are sealed through an O-shaped sealing ring.
The edges of the annular mounting plate, the baffle plate and the end cover at the opening of the air box are all provided with a plurality of coaxial threaded holes, and the air box, the baffle plate and the end cover are coaxially connected through bolts inserted in the threaded holes.
The through hole in the center of the baffle and the hole in the center of the end cover flange are coaxial holes.
The use method of the novel underwater tracing ink storage device comprises the following steps:
step 1) taking down an end cover of an ink storage device, and injecting a tracer into a stretched air box cavity until the tracer is flush with the upper end face of the air box, and stopping injection;
step 2) carrying an ink jet tracer device consisting of an ink storage device and a dilution nozzle on a submersible vehicle to submerge underwater, communicating the positive and negative electrodes at the upper end and the lower end of a memory alloy wire when a dam danger point is detected by the submersible vehicle, driving an air box to contract while the memory alloy wire contracts after being electrified, ejecting a piston out of a baffle through hole under the pressure action of a tracer in the air box cavity, and enabling the tracer to flow into the dilution nozzle through the baffle through hole, a boss cavity and a PU pipe in sequence;
and 3) turning on the propeller to rotate, fully stirring the tracer flowing into the dilution nozzle and water under the action of the blades, and discharging a large amount of diluted tracer from the nozzle of the dilution nozzle.
The tracer is edible pigment red and bright red, the tracer in the air box is a high-concentration tracer, and the tracer flowing into the dilution nozzle is diluted into a low-concentration tracer.
The piston and the spring are made of rigid materials or soft materials, such as a compression soft bag and the like.
When memory alloy wires with different sizes and different currents are used, the tensile force generated by the memory alloy wires to the bottom of the bellows is different.
The memory alloy wire is elongated at low temperature, and is shortened when electrified, and the shortening of the metal wire can be controlled by controlling the electrifying time, so that the amount of the discharged tracer agent is controlled.
Because storage tank and shower nozzle are located same height under water, so the water pressure that storage tank and shower nozzle received is approximate equal to during the check valve makes water can not flow backwards the storage tank, connect the interior spike agent of PU pipe of storage tank and shower nozzle and only receive the effect of memory alloy silk pulling force under the condition that the water pressure that both ends received offsets, consequently the utility model discloses when concrete implementation with the depth of water and water pressure irrelevant.
The utility model has the advantages that:
1) the utility model discloses the volume is less, and weight is lighter, and convenient operation and efficient only need carry highly concentrated tracer offal, and its used water that dilutes is external water, so a small amount of tracers after concentrating still can produce the dyeing water after diluting in a large number after diluting through mixing with external water.
2) The utility model discloses possess the deep water operation ability, can resist 2.5 MPa's outside water pressure, and do not receive the depth of water when using and be outside water pressure's influence.
3) The utility model discloses do not have the outside frame restriction, can set up the volume of spike agent according to the space that underwater equipment left, the flexibility is high to when the spike agent reduces, the volume of storing up the ink ware also can reduce.
4) The utility model discloses the installation and the easy operation of pouring into concentrated spike liquid into can one-man operation, improve the device's use convenience.
5) The utility model discloses need not the solenoid valve and control the blowout of spike liquid, the quality reduces greatly.
6) The utility model discloses an independent equipment can carry underwater robot work such as scuba, only needs the switching on and switching off and the commentaries on classics of screw machine and stop through the automatically controlled control memory alloy silk, can realize the spike means that dam body crack detected.
Drawings
Fig. 1 is an overall connection diagram of the present invention.
Fig. 2 is a schematic structural diagram of the ink tank of the present invention.
Fig. 3 is a schematic structural diagram of the dilution nozzle of the present invention.
Fig. 4 is a schematic structural view of the folding bellows of the present invention.
In the figure: 1. an ink reservoir; 2. a dilution nozzle; 3. a spring; 4. a piston; 5. an O-shaped sealing ring; 6. an air box; 7. memorizing alloy wires; 8. an end cap; 9. a baffle plate; 10. a tracer; 11. a spray head; 12. an upper cover; 13. a propeller wire; 14. a middle cover; 15. a lower cover; 16. a rubber seal ring; 17. a PU pipe; 18. a set screw; 19. a propeller machine; 20. and a copper pillar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model discloses an ink storage device 1 and dilution nozzle 2, ink storage device 1 and dilution nozzle 2 loop through PU pipe 17 and link to each other, and the boss that PU pipe 17 one end and end cover 8 center were equipped with links to each other, and the PU pipe 17 other end stretches into the side opening that is equipped with to dilution nozzle 2 upper cover 12 another side.
As shown in fig. 2, the ink reservoir 1 includes an end cap 8, a piston 4, a spring 3, a baffle 9, a seal ring 5, a bellows 6 and a memory alloy wire 7, a through hole penetrating up and down is opened at the center of the end cap 8, an inner flange is arranged in the through hole, the lower step of the inner flange is used as a shoulder for supporting the spring 3, the piston 4 is installed at the end of the spring 3, the diameter of the piston is larger than the aperture of the through hole at the center of the baffle 9, the spring 3 is always in a compressed state, a through hole is opened in the middle of the baffle 9, the baffle 9 is coaxial with the bellows 6, the lower surface of the baffle 9 and the upper surface of the bellows 6 are hermetically connected by the O-ring seal 5, one end of the memory alloy wire 7 is fixed on the lower surface of the bellows 6 by a ring screw, the other end is fixed on the lower, the memory alloy wire 7 is connected to an electric control device. A cavity enclosed by the lower surface of the baffle 9, the piston 4 and the bellows 6 is filled with a tracer 10, and finally, a plurality of copper columns 20 for limiting the left and right movement of the bellows 6 are uniformly distributed in the circumferential direction of the circumferential side of the bellows 6.
As shown in fig. 3, the dilution nozzle 2 includes a nozzle 11, an upper cover 12, a middle cover 14, a propeller 19 and a lower cover 15, the upper cover 12, the middle cover 14 and the lower cover 15 are all hollow sleeve structures, the nozzle 11 is connected to the upper end surface of the upper cover 12 through a bolt, and the upper cover 12 is coaxially and fixedly connected with the lower cover 15 through the middle cover 14; the spray head 11 is of a horn mouth structure, a small opening at the upper end of the spray head 11 is used as a spray nozzle, an annular boss is arranged at the position, close to the edge, of the lower end face of the spray head 11, and the outer side face of the annular boss is in fit and sealed connection with the inner side face of the upper cover 12; both sides of the upper cover 12 are provided with side holes, and the bottom of the lower cover 15 is provided with a round hole for water flow to enter; the propeller 19 body is positioned in a cavity formed by the upper cover 12 and the middle cover 14, the propeller 19 body is arranged on the inner side surface of the middle cover 14 through three fixing screws 18 which penetrate through the side wall of the middle cover 14 and are arranged in the radial direction, the propeller shaft of the propeller 19 faces downwards, blades arranged on the propeller shaft are positioned in the cavity of the lower cover 15, and a propeller 19 wire 13 connected with the propeller 19 penetrates through a side hole formed in one side of the upper cover 12 to be connected with an electric control device. The size of the round hole at the bottom of the lower cover 15 is close to that of the through hole of the nozzle 2, so that the propeller 19 is prevented from rapidly rotating to cause large-scale vortex influence on external water flow, and interference on overall control of the robot is avoided. Rubber sealing rings 16 are arranged between the outer side surface of the annular boss of the spray head 11 and the inner side surface of the upper cover 12, and the rubber sealing rings 16 are arranged on the contact surfaces of the upper cover 12 and the middle cover 14 and the contact surfaces of the upper cover 12 and the middle cover 14.
As shown in figure 4, the bellows 6 is a pipeline structure with one closed end and one open end, the corrugated structure on the peripheral side surface is an air pipe made of PU polyurethane, the bellows can freely stretch and retract within a certain length range and is used as a container for storing tracers, the design can greatly reduce the volume of the ink reservoir, and when the memory alloy wire 7 contracts, the length of the bellows 6 can be shortened accordingly.
The specific embodiment is as follows:
the steps of installing the ink tank 1 and storing the tracer 10 onshore are as follows: connecting one end of a memory alloy wire 7 to an annular screw on the inner surface of the bottom of the air box 6, flattening the air box 6, connecting the other end of the memory alloy wire with the annular screw on the lower surface of the baffle 9, leading the positive and negative electrodes of a power supply to two ends of the memory alloy wire, aligning the air box 6 with the mounting holes of the baffle 9, mounting an O-shaped sealing ring 5 between the air box 6 and the baffle 9, stretching the air box 6 to a certain length, injecting a tracer 10 into the cavity, and stopping injection when the tracer 10 is flush with the upper surface of the air box 6. The spring 3 and the piston 4 are mounted in a cavity enclosed by a flange of the end cover 8 and the baffle plate 9, a central hole of the flange is aligned with a through hole of the baffle plate 9, and the bellows 6, the baffle plate 9 and the end cover 8 are fastened by bolts and nuts. The anode and the cathode are communicated, so that the memory alloy wire 7 is contracted until the tracer liquid overflows from the upper end port of the ink reservoir 1, and the electrification is stopped. One end of a PU pipe 17 is arranged on the port of the ink reservoir 1, and the other end is arranged on a side hole which is arranged on the side edge of an upper cover 12 of the access dilution nozzle 2. If the tracer liquid is used up, only the end cover needs to be taken down and injected again by the injector, and the whole mechanism does not need to be completely disassembled.
When a bank worker finds a dam danger point through the submersible, the memory alloy wire 7 is electrified through the electric control device, a small amount of high-concentration tracer 10 flows into the dilution nozzle 2, the propeller 19 is turned on to rotate, the propeller rotates to drive water flow in the cavity to stir, so that the tracer with higher concentration flowing into the cavity is mixed and diluted into the tracer with lower concentration, a large amount of diluted tracer 10 is discharged from the nozzle of the spray head 11, and then the propeller 19 is turned off.
Claims (8)
1. A novel trace ink storage ware under water which characterized in that: the ink storage device (1) comprises an end cover (8), a baffle plate (9) and an air box (6) which are coaxially connected from top to bottom in sequence, wherein a boss is arranged at the center of the end cover (8), the boss is of a hollow structure which is vertically communicated with the center of the end cover (8), a circle of flange radially extends from the middle of the inner side surface of the boss, and a hole is formed in the center of the flange;
a cavity enclosed by the flange and the baffle (9) is internally provided with a spring (3) and a piston (4), the lower end of the piston (4) is propped against a through hole formed in the center of the baffle (9), and a compressed spring (3) is connected between the upper end of the piston (4) and the lower end of the flange;
the air box (6) is of a telescopic structure with an opening at the upper end and a closed lower end and is used for storing a tracer (10), an annular mounting plate which is vertically butted with the edge of the baffle (9) is arranged at the opening of the air box (6), and the peripheral side surface of the air box (6) consists of air pipes which are arranged in a corrugated shape; a plurality of memory alloy wires (7) are uniformly distributed in a cavity between the baffle (9) and the air box (6) along the circumferential direction, and the upper end and the lower end of each memory alloy wire (7) are respectively connected with the lower end of the baffle (9) and the bottom of the air box (6) through annular bolts.
2. The novel underwater tracing ink-storing device as claimed in claim 1, wherein the ink-storing device (1) is connected with the dilution nozzle (2) through a PU pipe (17), the dilution nozzle (2) comprises a spray head (11), an upper cover (12), a middle cover (14), a propeller (19) and a lower cover (15), the upper cover (12), the middle cover (14) and the lower cover (15) are all hollow sleeve structures, the spray head (11) is connected to the upper end face of the upper cover (12) through a bolt, and the upper cover (12) is coaxially and fixedly connected with the lower cover (15) through the middle cover (14); the spray head (11) is of a horn mouth structure, a small opening at the upper end of the spray head (11) is used as a nozzle, an annular boss is arranged at the position, close to the edge, of the lower end face of the spray head (11), and the outer side face of the annular boss is attached to and hermetically connected with the inner side face of the upper cover (12); two sides of the upper cover (12) are respectively provided with a side hole, and the bottom of the lower cover (15) is provided with a round hole for water flow to enter; the propeller machine (19) body is positioned in a cavity formed by the upper cover (12) and the middle cover (14), the propeller machine (19) body is arranged on the inner side surface of the middle cover (14) through three fixing screws (18) which penetrate through the side wall of the middle cover (14) in a radial mode, a propeller shaft of the propeller machine (19) faces downwards, blades arranged on the propeller shaft are positioned in the cavity of the lower cover (15), and a propeller machine (19) wire (13) connected with the propeller machine (19) penetrates through a side hole formed in one side of the upper cover (12) and is connected with an electric control device; PU pipe (17) one end links to each other with the boss upper end at end cover (8) center, and PU pipe (17) other end stretches into the side opening that is opened to dilution nozzle (2) upper cover another side.
3. The novel underwater tracing ink reservoir as claimed in claim 1, wherein the anode and cathode of the power supply are respectively contacted with the upper and lower ends of the memory alloy wire (7) after being led into the air box (6) through the waterproof connector, and the on-off of the current is controlled through the electric control device.
4. The novel underwater tracing ink reservoir as claimed in claim 1, wherein a plurality of copper columns (20) for limiting the bellows (6) from moving left and right are uniformly distributed on the lower end surface of the annular mounting plate at the opening of the bellows (6) in the circumferential direction, and the copper columns (20) are located on the circumferential side of the bellows (6).
5. The novel underwater tracer ink tank as claimed in claim 1, wherein the air duct is made of stretchable PU polyurethane.
6. A new underwater tracer ink reservoir according to claim 1 characterised in that the diameter of the piston (4) is greater than the diameter of the through hole in the centre of the baffle (9).
7. A new underwater tracer ink reservoir according to claim 1 characterised in that the seal between the lower face of the baffle (9) and the annular mounting plate of the bellows (6) is achieved by means of an O-ring seal (5).
8. The novel underwater tracing ink reservoir as claimed in claim 1, wherein the edges of the annular mounting plate, the baffle plate (9) and the end cap (8) at the opening of the bellows (6) are all provided with a plurality of coaxial threaded holes, and the bellows (6), the baffle plate (9) and the end cap (8) are coaxially connected through bolts inserted in the threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137411.2U CN212332164U (en) | 2020-06-18 | 2020-06-18 | Novel trace ink storage ware under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137411.2U CN212332164U (en) | 2020-06-18 | 2020-06-18 | Novel trace ink storage ware under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212332164U true CN212332164U (en) | 2021-01-12 |
Family
ID=74077960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021137411.2U Withdrawn - After Issue CN212332164U (en) | 2020-06-18 | 2020-06-18 | Novel trace ink storage ware under water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212332164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730980A (en) * | 2020-06-18 | 2020-10-02 | 浙江大学 | Underwater trace ink storage device |
-
2020
- 2020-06-18 CN CN202021137411.2U patent/CN212332164U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730980A (en) * | 2020-06-18 | 2020-10-02 | 浙江大学 | Underwater trace ink storage device |
| CN111730980B (en) * | 2020-06-18 | 2023-11-07 | 浙江大学 | Novel underwater tracing ink reservoir |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210112 Effective date of abandoning: 20231107 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210112 Effective date of abandoning: 20231107 |