CN111661245A - Anchor device for realizing anchor jaw opening through water operation - Google Patents
Anchor device for realizing anchor jaw opening through water operation Download PDFInfo
- Publication number
- CN111661245A CN111661245A CN202010482025.5A CN202010482025A CN111661245A CN 111661245 A CN111661245 A CN 111661245A CN 202010482025 A CN202010482025 A CN 202010482025A CN 111661245 A CN111661245 A CN 111661245A
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- anchor
- fluke
- helical gear
- worm
- rope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/22—Handling or lashing of anchors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/30—Anchors rigid when in use
- B63B21/34—Anchors rigid when in use with two or more flukes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
An anchorage device for realizing anchor jaw opening by water operation comprises an anchor rod, an anchor jaw seat, a movable anchor jaw and a locking component, wherein an action rope (chain) is additionally arranged besides a conventional anchor rope (chain), and the anchor jaw is connected to the anchor jaw seat through a rotating shaft. The locking component can act by pulling the action rope (chain), the locking state of the locking component and the anchor fluke is released, the anchor fluke is opened, the ground gripping force is lost, and then the anchor rope (chain) is recovered from the ship and the anchorage device is recovered. The invention makes the anchor-lifting mode easier, and if the anchor weight does not exceed the manpower, the manual anchor-lifting can be realized. When being applied to fields such as fishery production, sightseeing on water, outdoor fishing, the choice room to the anchor ground is wider, can more conveniently transition, realizes the multiple spot operation, and the use scene expands greatly makes things convenient for activities such as people's production and life and amusement fishing, also can provide more facilities for outdoor climbing activity.
Description
Technical Field
The invention relates to an anchorage device, in particular to an anchorage device with a movable fluke and an action rope.
Technical Field
When a ship needs to be fixed on a water surface, an anchorage device is generally used, and the existing anchorage device generally consists of an anchor rope (chain) and an anchor. Except for the shore anchor, the anchor is pulled by a large force through machinery during anchor lifting, and the included angle between the anchor rod and the anchor fluke is not changed generally at the moment. The disadvantage of this kind of conventional anchorage is that the ship is usually required to travel above the anchorage during the anchorage, and a powerful traction of a power mechanism is usually required for the anchorage.
Disclosure of Invention
The invention aims to change the angle between a movable anchor fluke and an anchor rod by drawing an action rope on the water surface, so that the anchor fluke can be expanded outwards, the anchor rod and the anchor fluke form a large obtuse angle, the anchor fluke loses the gripping capability so as to easily lift the anchor device, and the anchor device is convenient for the ship to pull up. Especially for small and medium-sized ships without mechanical power for anchor lifting, the anchor device is thrown out in a locking state to hang on the water bottom, the action rope is pulled manually during anchor lifting, the anchor fluke can be expanded, and the ship can be lifted by manpower alone. Also can be used for outdoor climbing activities.
The technical scheme of the invention is as follows: the utility model provides an open ground tackle of fluke is realized through operation on water, includes stock, fluke seat and fluke, except conventional hawser, has an action rope in addition on the ground tackle, and the fluke is connected on the fluke seat with the pivot, pulls the locking mechanism that action rope can drive the ground tackle, leads to the fluke locking state to relieve, and the fluke opens, loses the grip ground power, retrieves the hawser, withdraws the ground tackle.
Preferably, the locking mechanism comprises a sleeve connected with the fluke base and a support rod connected with the sleeve, the support rod is provided with a wire guide hole, the lower section of the anchor rod is connected with the fluke base and the sleeve through threads, the anchor rod is driven to rotate by pulling the action rope, and the anchor rod moves up and down relative to the fluke base.
Preferably, the action rope is connected with the anchor rod, is wound on the anchor rod for a plurality of circles and then is led out from the wire guide hole in the supporting rod, and is pulled to directly drive the anchor rod to rotate and move up and down relative to the fluke base.
Preferably, the action rope drives the anchor rod to rotate through a worm-like mechanism similar to a wheel, the worm-like wheel is an elongated helical gear arranged on the anchor rod, the worm is arranged on the support rod, the elongated helical gear is meshed with the worm, and when the action rope is pulled to drive the worm shaft to rotate, the helical gear is driven to rotate, and meanwhile, the helical gear is driven to move up and down.
Preferably, a large-diameter reel is fitted to the anchor rod, and the operating rope is connected to the large-diameter reel, wound several turns, and then drawn out.
Preferably, the inner end of the fluke has a boss and a binding groove.
Preferably, the inner end of the anchor claw is a fluted disc, and the fluted disc is meshed with the external thread at the lower end of the anchor rod.
Preferably, the lower end of the anchor rod is provided with a choke iron, and a gap between the boss and the anchor rod is matched with the bearing; preferably, the sear is a bearing.
Preferably, the locking mechanism comprises a worm support which is arranged on the anchor rod and extends downwards, and the anchor claw seat is fixedly connected with the lower end of the anchor rod; the anchor rod is provided with external threads, and the periphery of the anchor rod is sleeved with a lengthened helical gear; the helical gear is provided with an axial threaded hole and is in threaded connection with the anchor rod; a worm meshed with the helical gear is installed on the worm support, the action rope drives the worm shaft to rotate, the helical gear is driven to rotate when the worm rotates, and the helical gear is driven to move up and down; and the lower end of the helical gear is provided with an anchor claw locking device.
Preferably, the fluke locking device comprises fluke positioning teeth extending upwards from the inner end of the fluke, the lower end of the helical gear is fixedly connected with a bearing inner ring, and bearing balls are arranged between the bearing inner ring and a bearing outer ring; the lower end of the bearing outer ring is provided with a groove plate, and the groove plate is provided with a positioning groove; the fluke positioning teeth are matched with the positioning grooves.
Has the advantages that:
the invention makes the anchor-lifting mode easier, and the anchor can be lifted by manpower as long as the anchor weight does not exceed the manpower. When being applied to fields such as fishery production, sightseeing on water, outdoor fishing, if use small-size ground tackle, can throw far away distance by hand, if can further throw three ground tackle to three direction, can make ship, raft realize basic fixed, and the position can not change easily, confronts stormy waves and rivers. The device is particularly suitable for the condition that the operation point position needs to be fixed. And because the small anchorage device can release the ground holding force of the anchor fluke by manpower and can lift the anchor by manpower, the choice of the anchorage device is wider, and the use scene is greatly expanded. At present, many small ships in China can only be anchored at the bank because of no mechanical anchoring power device, but the anchor can be more conveniently transferred on a wide water surface to realize fixed-point directional operation at different positions. And more convenience can be provided for outdoor climbing activities.
Drawings
FIG. 1 is a schematic cross-sectional view of a novel anchor with a bearing as a sear-lock fluke;
FIG. 2 is a schematic cross-sectional view of the novel anchorage assembly with the bearing moved downward to release the locking;
FIG. 3 is a cross-sectional view of a locking state of a novel anchor with a diagonal gear on a paraxial circular arc segment of a fluke;
FIG. 4 is a cross-sectional view of an unlocked state of a novel anchor with a diagonal gear on a paraxial circular arc segment of a fluke;
FIG. 5 is a schematic cross-sectional view of a novel anchor with a large-diameter wire wheel sleeved on an anchor rod
FIG. 6 is an enlarged view of a portion of FIG. 1;
FIG. 7 is a schematic view of the locking state of the labor saving solution using the combination of the lengthened helical gear and the worm;
FIG. 8 is a schematic view of the unlocked state using the labor saving solution of the combination of the lengthened helical gear and the worm;
FIG. 9 is a schematic view of an anchor unlocked state using an elongated helical gear with internal threads;
FIG. 10 is a schematic illustration of the locking state of the anchor using an elongated helical gear with internal threads;
FIG. 11 is a schematic view of the storage of the anchor using an elongated helical gear with internal threads;
fig. 12 is a partially enlarged view of fig. 10.
In the figure: 1, anchoring a rope; 2, an action rope; 3 connecting rings; 4, an anchor rod top ring; 5, a wire guide hole; 6, anchoring the bolt; 7 supporting rods; 8, external threads of the anchor rod; 9 anchor fluke base internal threads; 10 anchor jaw seats; 11 a fluke pivot; 12 a fluke; 13 contact surface of anchor fluke and bearing; 14 bearing outer races; 15 bearing; 16, iron blocking; 17 helical teeth; 18 fluted disc; 19 binding grooves; 20 a reel; 21 action rope guide hole; 22 a safety line; 23 a safety line guide hole; 24 a helical gear; 25 of worm; 26 an outwardly extending section; 27 supporting the rod top hole; 28, external threads of the upper section of the anchor rod; 29 a boss; 30 helical gear internal threads; 31 bearing inner race ring; 32 bearing balls; 33 positioning grooves; 34 fluke positioning teeth; 35 a worm support; 36 rope blocking plates; 37 bearing outer race ring; 38 trough plate.
Detailed description of the preferred embodiments
Example 1
As shown in fig. 1 and 6, an anchor for effecting expansion of a fluke by marine operations comprises an anchor rod 6, a fluke seat 10, a movable fluke 12, an anchor line 1 and an action line 2. The lower part of the anchor rod 6 has an external thread 8. The fluke socket 10 has a sleeve with an internal thread 10 therein. The anchor claw seat 10 is sleeved on the anchor rod 6 through threads. Fluke 12 is connected to fluke mount 10 via fluke shaft 11. The inner end of fluke 12 has a boss 29 and a binding groove 19. When the fluke 12 is opened and locked, the gap between the boss 29 and the anchor rod 6 is matched with the bearing 15. The lower end of the anchor rod 6 is fitted with a bearing 15. The upper end of the sleeve of the anchor claw seat 10 is connected with two symmetrical support rods 7, the upper end of the two support rods is provided with a support rod top hole 27, and the anchor rod 6 passes through the hole with extremely small clearance. The support bar 7 has wire guides 5. The action rope 2 is connected with the anchor rod 6, and is led out from the wire guide hole 5 after being wound on the anchor rod 6 for a plurality of circles. The top end of the anchor rod 6 is provided with an anchor rod top ring 4 and a connecting ring 3. The anchor line 1 is connected with a connecting ring 3.
Before anchoring, the anchor rod 6 is firstly screwed upwards, at the moment, the action rope 2 can be wound on the upper section of the anchor rod 6 for a plurality of circles until the bearing 15 approaches the anchor jaw seat 10, the peripheral wall of the outer ring 14 of the bearing is tightly propped against the anchor jaw 12, the anchor jaw 12 cannot be opened outwards, and a rubber band, a binding rope or a non-closed elastic steel wire ring is hooped in the binding groove 19 to prevent the anchor jaw from being folded. Just can drop the anchor to the distant place this moment, treat that the anchor is retrieved hawser 1 after the anchor bottoming, can realize the anchor, when will playing the anchor, pull action rope 2, stock external screw thread 8 and the internal thread 10 interact of fluke seat this moment, stock 6 moves down for fluke seat 10, at this moment, because bearing 15 outer lane 14 is not rotatory, bearing 15 is whole only need very little power way just can move down, until can not contact fluke and bearing contact surface 13, fluke 12 is outer to be opened this moment, it just is shown in figure 2 with stock 6 to approach to the straight line, fluke 12 loses the grip, withdraw hawser 1, can play the anchor.
Example 2
As shown in fig. 3, an anchor for effecting expansion of a fluke by marine operations comprises an anchor rod 6, a fluke seat 10, a movable fluke 12, anchor lines 1 and an action line 2. The lower part of the anchor rod 6 has an external thread 8. The fluke socket 10 has a sleeve with an internal thread 10 therein. The anchor claw seat 10 is sleeved on the anchor rod 6 through threads. Fluke 12 is connected to fluke mount 10 via fluke shaft 11. The lower end of the anchor rod 6 is provided with a sear 16. The upper end of the sleeve of the anchor claw seat 10 is connected with two symmetrical support rods 7, the upper end of the two support rods is provided with a support rod top hole 27, and the anchor rod 6 passes through the hole with extremely small clearance. The support bar 7 has wire guides 5. The action rope 2 is connected with the anchor rod 6, and is led out from the wire guide hole 5 after being wound on the anchor rod 6 for a plurality of circles. The top end of the anchor rod 6 is provided with an anchor rod top ring 4 and a connecting ring 3. The anchor line 1 is connected with a connecting ring 3. The inner end of the fluke 12 is a toothed disc 18, the toothed disc 18 having a helical toothing 17. The helical teeth 17 are engaged with the external thread 8 of the lower end of the anchor rod 6.
Before the anchor is thrown, the anchor rod 6 is firstly rotated, the external thread 8 of the anchor rod can drive the inclined thread teeth 17 on the fluted disc 18 of the anchor claw 12 until the anchor claw 12 rotates to a proper ground grabbing angle, and then the anchor can be thrown. When the anchor is pulled, the action rope 2 is pulled, at the moment, because the fluke 12 and the fluke base 10 can not rotate, the anchor rod 6 interacts with the inclined thread 17 on the fluted disc 18, so that the anchor rod 6 and the fluke 12 tend to form an obtuse angle, as shown in figure 4, the fluke 12 loses the grip, and the anchor rope 1 is recovered, so that the anchor can be easily pulled. This solution sear 16 does not provide a jack function for the locked state.
Example 3
As shown in fig. 5, this is the labor saving type of embodiment 1. The anchor rod 6 is sleeved with a large-diameter reel 20, and the action rope 2 is connected with the reel 20, wound for a plurality of circles and led out through the wire guide hole 5 and the action rope guide hole 21. Otherwise, the same procedure as in example 1 was repeated.
Example 4
As shown in fig. 7 (locked state), an anchor for effecting expansion of fluke by marine operations comprises anchor rod 6, fluke seat 10, movable fluke 12, anchor line 1, action line 2 and safety line 22. The lower part of the anchor rod 6 has an external thread 8. The fluke socket 10 has a sleeve with an internal thread 10 therein. The anchor claw seat 10 is sleeved on the anchor rod 6 through threads. Fluke 12 is connected to fluke mount 10 via fluke shaft 11. The inner end of fluke 12 has a binding groove 19. The lower end of the anchor rod 6 is fitted with a bearing 15. The upper end of the sleeve of the anchor claw seat 10 is connected with two symmetrical support rods 7, the upper end of the two support rods is provided with a support rod top hole 27, and the anchor rod 6 passes through the hole with extremely small clearance. The top end of the anchor rod 6 is provided with an anchor rod top ring 4 and a connecting ring 3. The anchor line 1 is connected with a connecting ring 3. In order to drive the anchor rod 6 to rotate and unlock the lock more easily, a specially-made lengthened helical gear 24 is installed outside the anchor rod 6, and the helical gear 24 is fixedly connected with the anchor rod 6 and rotates synchronously. A worm 25 is arranged on the two support rods 7 connected with the fluke-holder sleeve, and the worm 25 is meshed with the helical gear 24. The worm 25 has an extended portion 26 extended outward long as a spool for winding the action cord 2 and the safety cord 22, and has an annular cord stopper 36 at its end. The action rope 2 and the safety rope 22 may be two ropes or two ends of one rope. The rope is wound on the outward extending section 26 of the worm for a plurality of turns and then is respectively led out upwards through the action rope guide hole 21 and the safety rope guide hole 23. Sufficient fastening friction can be obtained by winding several turns.
When unlocking, the action rope 2 is pulled, the worm 25 drives the helical gear 24 to rotate, and the anchor rod 6 is synchronously driven to rotate (clockwise rotation when viewed from top to bottom). At this time, since the external thread 8 of the lower section of the anchor rod 6 is engaged with the internal thread 9 of the fluke base 10, the fluke 12 is in a state of being caught in the river bed, the fluke base 10 cannot be rotated, and the anchor rod 6 inevitably moves downward. Because the helical gear 24 is specially lengthened, the anchor rod 6 cannot be disengaged from the worm 25 in the downward movement process, and can be continuously driven to rotate by the worm 25, and the bearing 15 serving as a locking iron block continuously descends until the bearing 15 loses the function of propping up the movable anchor claw 12. At this point the movable fluke 12 is opened without the jack of the bearing 15 at the back, so that the unlocked condition of figure 7 and figure 8 is achieved and the anchor can be lifted. In order to increase the safety of the anchorage, the actuation rope 2 and the safety rope 22 are preferably the two ends of one rope, i.e. the other end of the actuation rope 2 is used as the safety rope 22. After anchoring the substrate, the safety line 22 can be tensioned again in synchronism with tensioning of the anchor line 1, in case of unlocking by pulling the actuation line 2 by mistake. Of course, before the water is anchored, the anchor rod 6 can be driven to rotate anticlockwise by pulling the safety rope 22, so that the anchor enters the locking state from the unlocking state. Otherwise, the same procedure as in example 1 was repeated.
Example 5
As shown in fig. 9-12, the lower end of anchor rod 6 is fixedly connected to fluke mount 10, and fluke 12 is connected to fluke mount 10 via fluke shaft 11. The upper section of the anchor rod 6 is provided with an external thread 28, the periphery of the anchor rod is sleeved with a lengthened helical gear 24, the helical gear 24 is provided with an axial internal thread 30, and the helical gear 24 is in threaded connection with the anchor rod 6. The upper section of the anchor has a downwardly projecting worm support 35 for mounting the worm 25 to drive the bevel gear 24. The worm 25 has an extended portion 26 extended outward long as a spool for winding the action cord 2 and the safety cord 22, and has an annular cord stopper 36 at its end. A bearing inner ring 31 is fixedly connected to the lower section of the helical gear 24, and bearing balls 32 are provided between the bearing inner ring 31 and the bearing outer ring 37. The lower end of the bearing outer race ring 37 has a groove plate 38, and the groove plate 38 has a positioning groove 33. The moveable fluke 12 has projecting set teeth 34. The rest is the same as example 4.
Before anchoring, the safety rope 22 is pulled to rotate the worm 25 to drive the bevel gear 24 to rotate, because the bevel gear internal thread 30 is meshed with the anchor rod external thread 28, the bevel gear horizontally rotates and moves downwards, the combined motion drives the inner ring 31, the outer ring 37, the groove plate 38 and the positioning groove 33 to synchronously descend until the positioning groove 33 is sleeved on the positioning teeth 34 of the anchor fluke 12, the orientation of the movable anchor fluke 12 is fixed, and then the anchor can be anchored. When the anchor needs to be pulled, the action rope 2 is pulled, the worm 25 rotates to drive the bevel gear 24, the bevel gear horizontally rotates and moves upwards at the same time, the positioning groove 33 below the bevel gear is driven to move upwards, and the constraint on the positioning teeth 34 of the movable fluke 12 is lost. At the moment, the fluke 12 can be expanded by slightly pulling the anchor rope 1 to reach the unlocking state shown in figure 9, the ground holding force is lost, and the anchor is lifted. In this embodiment, the main function of the bearing balls 32 is to transmit pulling force, and to prevent the outer ring of the bearing from rotating horizontally when the positioning groove 33 rises during unlocking, thereby saving labor. The greatest difference between this embodiment and the other embodiments is that the anchor bar 6 does not rotate when unlocked. When the anchor device is stored after the anchor is lifted, the movable anchor fluke 12 can be folded upwards to reach the state shown in figure 11, the occupied space is reduced, and the portable anchor device is convenient to carry.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention, the technical solutions and the inventive concepts equivalent to or changed from the technical solutions and the inventive concepts within the scope of the present invention.
Claims (10)
1. The utility model provides an open ground tackle of fluke is realized through operation on water, includes stock, fluke seat and fluke, characterized by, except conventional hawser, has an action rope in addition on the ground tackle, and the fluke is connected on the fluke seat with the pivot, pulls the locking mechanism that action rope can drive the ground tackle, leads to the fluke locking state to relieve, and the fluke opens, loses the grip ground power, retrieves the hawser, withdraws the ground tackle.
2. An anchorage assembly according to claim 1 for effecting expansion of the fluke by marine operations, wherein the locking means comprises a sleeve connected to the fluke base and a support bar connected to the sleeve and having wire guides, the lower section of the shank being threadedly engaged with the fluke base and the sleeve, the anchor being adapted to be rotated by pulling the actuation cable and to be moved up and down relative to the fluke base.
3. An anchorage assembly according to claim 2 for enabling the spread of the fluke by marine operations wherein the actuation cable is connected to the shank and is led out of the wire guide in the support bar after being wound around the shank in a plurality of turns, pulling the actuation cable directly driving the shank to rotate and move up and down relative to the fluke base.
4. The anchor assembly of claim 2, wherein the actuation rope drives the anchor rod to rotate via a worm-like mechanism, the worm-like mechanism is an elongated helical gear disposed on the anchor rod, the support rod is provided with a worm, the elongated helical gear is engaged with the worm, and pulling the actuation rope drives the worm shaft to rotate, thereby driving the helical gear to rotate and simultaneously moving the helical gear up and down.
5. An anchorage assembly according to claim 2, wherein a large diameter reel is fitted to the shank, and the actuation cable is connected to the reel and is wound around the reel for a number of turns before being led out.
6. An anchorage assembly according to claim 3, 4 or 5, wherein the inner end of the fluke has a projection and a binding groove.
7. An anchorage assembly according to claim 2 or 3, wherein the inner end of the fluke is provided with a toothed disc which engages with external threads on the lower end of the shank.
8. The anchor assembly of claim 6 wherein the anchor shank has a stop iron at its lower end, the gap between the boss and the anchor shank being adapted to the bearing; preferably, the sear is a bearing.
9. An anchorage assembly according to claim 1 for enabling the spread of the fluke by marine operations, wherein the locking means comprises a downwardly extending worm support provided on the shank, the fluke seat being fixedly connected to the lower end of the shank; the anchor rod is provided with external threads, and the periphery of the anchor rod is sleeved with a lengthened helical gear; the helical gear is provided with an axial threaded hole and is in threaded connection with the anchor rod; a worm meshed with the helical gear is installed on the worm support, the action rope drives the worm shaft to rotate, the helical gear is driven to rotate when the worm rotates, and the helical gear is driven to move up and down; and the lower end of the helical gear is provided with an anchor claw locking device.
10. The anchor assembly of claim 9 wherein said fluke locking means comprises fluke positioning teeth extending upwardly from an inner end of the fluke, an inner race ring is fixedly attached to a lower end of the helical gear, and bearing balls are disposed between the inner race ring and the outer race ring; the lower end of the bearing outer ring is provided with a groove plate, and the groove plate is provided with a positioning groove; the fluke positioning teeth are matched with the positioning grooves.
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CN202010482025.5A CN111661245A (en) | 2020-06-01 | 2020-06-01 | Anchor device for realizing anchor jaw opening through water operation |
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CN202010482025.5A CN111661245A (en) | 2020-06-01 | 2020-06-01 | Anchor device for realizing anchor jaw opening through water operation |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112924306A (en) * | 2021-01-29 | 2021-06-08 | 西安石油大学 | Hinged buffering self-anchoring type static explosion experimental device for buried oil and gas pipeline |
CN114228906A (en) * | 2021-12-24 | 2022-03-25 | 江苏行萃机电有限公司 | Recovery device for preventing ship anchor from being stuck |
CN115479986A (en) * | 2022-09-16 | 2022-12-16 | 山东科技大学 | Microcrack detection device based on umbelliform probe structure |
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2020
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112924306A (en) * | 2021-01-29 | 2021-06-08 | 西安石油大学 | Hinged buffering self-anchoring type static explosion experimental device for buried oil and gas pipeline |
CN112924306B (en) * | 2021-01-29 | 2024-03-01 | 西安石油大学 | Hinge buffering self-anchored buried oil-gas pipeline static explosion experimental device |
CN114228906A (en) * | 2021-12-24 | 2022-03-25 | 江苏行萃机电有限公司 | Recovery device for preventing ship anchor from being stuck |
CN115479986A (en) * | 2022-09-16 | 2022-12-16 | 山东科技大学 | Microcrack detection device based on umbelliform probe structure |
CN115479986B (en) * | 2022-09-16 | 2024-06-11 | 山东科技大学 | Microcrack detection device based on umbrella-shaped probe structure |
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