CN116812073A - Overload self-unloading anchor - Google Patents
Overload self-unloading anchor Download PDFInfo
- Publication number
- CN116812073A CN116812073A CN202310325421.0A CN202310325421A CN116812073A CN 116812073 A CN116812073 A CN 116812073A CN 202310325421 A CN202310325421 A CN 202310325421A CN 116812073 A CN116812073 A CN 116812073A
- Authority
- CN
- China
- Prior art keywords
- anchor
- rod
- pull rod
- fluke
- overload
- 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.)
- Pending
Links
- 241000935974 Paralichthys dentatus Species 0.000 claims abstract description 61
- 238000004873 anchoring Methods 0.000 claims abstract description 15
- 241000242541 Trematoda Species 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 244000023431 Proboscidea parviflora Species 0.000 description 1
- 235000019096 Proboscidea parviflora Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B63B21/46—Anchors with variable, e.g. sliding, connection to the chain, especially for facilitating the retrieval of the anchor
-
- 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
- B63B21/38—Anchors pivoting when in use
- B63B21/44—Anchors pivoting when in use with two or more flukes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides an overload self-unloading anchorage device, which comprises: the anchor rod is provided with a support; the first end and the second end of the pull rod are exposed out of the anchor rod; the resistance spring is sleeved on the pull rod and used for connecting the first end of the pull rod with the anchor rod; the flukes are hinged to the second end of the pull rod and are hinged to the support through various deflection connecting rods; the pull rod moves along the first end of the pull rod relative to the anchor rod, so that the anchor fluke is linked to rotate around the hinging point in a direction gradually away from the anchor rod, an anchoring state and an anchor lifting state are sequentially formed, an included angle beta 1, beta 1 is less than or equal to pi/2 is formed between the anchor rod and the anchor fluke in the anchoring state, and an included angle beta 2, beta 2 is more than pi/2 is formed between the anchor rod and the anchor fluke in the anchor lifting state. The utility model solves the technical problem that the anchor is difficult to be lifted due to the anchor lifting resistance load generated by the extrusion of the traditional anchor.
Description
Technical Field
The utility model relates to the technical field of anchors, in particular to an overload self-discharging anchor.
Background
The anchor is mainly used for anchoring and positioning of a ship or a water floating body, and is required to be thrown on a river bed, and the friction resistance generated by the self weight of the anchor and the holding power generated by cutting into the river bed body resist the pulling force caused by the drifting trend of the ship or the floating body. When the vessel is to change or cancel the moored state, it is often necessary to pull up the anchor. For an anchor in deep-sinking silt (sand) (such as the patent of the utility model with a double claw and rod anchor with the name of CN209904991U for preventing damage to a stranded ship), the angle of the anchor claw cannot be changed along with the increase of stress; the resistance is increased along with the increase of the anchor pulling force caused by the extrusion of the sediment by the fluke, so that the anchor is lost after the overload breaks the anchor cable (chain).
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides an overload self-unloading anchor for solving the technical problem that the anchor is difficult to take up due to the anchor taking-up resistance load generated by extrusion of the traditional anchor in the related art.
The utility model provides an overload self-unloading anchorage device, which comprises:
the anchor rod is provided with a support;
the pull rod is provided with a first end and a second end which are oppositely arranged, and a moving part connected with the first end and the second end, and the moving part movably penetrates through the anchor rod so that the first end and the second end of the pull rod are exposed out of the anchor rod;
the resistance spring is sleeved on the pull rod and used for connecting the first end of the pull rod with the anchor rod;
the flukes are hinged to the second end of the pull rod and are hinged to the support through various deflection connecting rods;
the pull rod moves along the first end of the pull rod relative to the anchor rod, so that the anchor fluke is linked to rotate around the hinging point in a direction gradually away from the anchor rod, an anchoring state and an anchor lifting state are sequentially formed, an included angle beta 1, beta 1 is less than or equal to pi/2 is formed between the anchor rod and the anchor fluke in the anchoring state, and an included angle beta 2, beta 2 is more than pi/2 is formed between the anchor rod and the anchor fluke in the anchor lifting state.
Further, a hanging hole is formed in the first end of the pull rod, and one end of the resistance spring is hung in the hanging hole.
Further, the anchor rod is provided with a mounting opening and a gland covered on the mounting opening, a containing position is defined between the gland and the mounting opening, and the containing position is used for fixing the other end of the resistance spring.
Further, the resistance spring has a large diameter end and a small diameter end that are disposed opposite to each other, the large diameter end of the resistance spring being disposed toward the anchor rod, and the small diameter end thereof being disposed toward the first end of the pull rod.
Further, two ends of the deflection connecting rod are respectively hinged to the support and the corresponding flukes.
Further, the support is provided with a containing groove, an opening of the containing groove faces to the second end of the pull rod, and in the anchor-taking state, part of the fluke stretches into the containing groove.
Further, the anchor further comprises a movable connecting disc, the movable connecting disc is arranged at the second end of the pull rod, and each anchor claw is hinged to the movable connecting disc.
Further, the second end of the pull rod is provided with a thread structure, so that the locking nut is abutted against the movable connecting disc after being screwed in.
Further, the fluke is provided with an inclined contact surface.
Further, a pull ring is arranged at the first end of the pull rod. The technical principle of the utility model is as follows: .
Compared with the prior art, the utility model has the following beneficial effects: before use, a preset included angle beta can be formed between the fluke and the anchor rod, the pull rod is pulled to enable the whole body of the pull rod to move towards the direction of the first end of the pull rod so as to drive the fluke to rotate towards the direction deviating from the pulling force, and at the moment, the included angle is beta 1, beta 1 is less than or equal to pi/2 and is used for enabling the fluke to cut into a river bed, so that the effect of normal anchoring is achieved; when the stress of the anchor exceeds the allowable tension, the fluke can continue to rotate, so that the included angle between the anchor rod and the fluke is increased to beta 2, and then the holding power of the fluke is reduced after the angle of the fluke is changed, thereby achieving the purpose of automatically unloading the load, preventing the anchor cable from being broken and being beneficial to safe anchor lifting.
Drawings
FIG. 1 is a schematic diagram of an overload dump anchor in accordance with one embodiment of the present utility model;
FIG. 2 is a schematic view of an embodiment of the present utility model with flukes in an anchored condition;
FIG. 3 is a schematic view of a fluke in a anchored state according to an embodiment of the present utility model;
FIG. 4 is a schematic view showing a process of switching a fluke from a anchored state to an anchored state according to an embodiment of the present utility model;
FIG. 5 is a diagram of the present utility model;
reference numerals illustrate:
1. a bolt; 101. a mounting port; 2. a support; 201. a receiving groove; 3. a pull rod; 301. a hanging hole; 302. a pull ring; 4. a resistance spring; 5. flukes; 501. a contact surface; 6. a gland; 7. a movable connecting disc; 8. a lock nut;
wherein the arrow indicates the direction of force.
Detailed Description
It should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
The utility model will be further described with reference to fig. 1-5.
An overload self-unloading anchorage device comprises an anchor rod 1, a pull rod 3, a resistance spring 4 and a plurality of flukes 5; the anchor rod 1 is provided with a support 2; the pull rod 3 is provided with a first end and a second end which are oppositely arranged, and a moving part connected with the first end and the second end, wherein the moving part movably penetrates through the anchor rod 1 so that the first end and the second end of the pull rod 3 are exposed out of the anchor rod 1; the resistance spring 4 is sleeved on the pull rod 3 and used for connecting the first end of the pull rod 3 with the anchor rod 1; the flukes 5 are hinged to the second end of the pull rod 3 and are hinged to the support 2 through various deflection connecting rods; the pull rod 3 moves along the first end of the anchor rod 1 relatively to link the fluke 5 to rotate around a hinge point in a direction gradually away from the anchor rod 1, and forms an anchoring state and an anchor-taking state in sequence, wherein an included angle beta 1, beta 1 is less than or equal to pi/2 is formed between the anchor rod 1 and the fluke 5 in the anchoring state, and an included angle beta 2, beta 2 is more than pi/2 is formed between the anchor rod 1 and the fluke 5 in the anchor-taking state.
In this embodiment, as shown in fig. 1, in order to prevent the situation that the anchor cable (chain) is broken due to overload caused by the increase of the anchor pulling force caused by the extrusion of the river bed sediment and the like, the pull rod 3 is movably arranged in the anchor rod 1 in a penetrating way, the first end and the second end of the pull rod 3 are respectively exposed at the two ends of the anchor rod 1, the first end of the pull rod 3 is connected with the end part of the anchor rod 1 by a resistance spring 4, the second end of the pull rod is hinged with the end part of the fluke 5, and the middle part of the fluke 5 is hinged with the support 2 arranged on the anchor rod 1 by a deflection connecting rod; before use, a preset included angle beta can be formed between the fluke 5 and the anchor rod 1, the fluke 5 is used for cutting into a riverbed, the friction resistance generated by the fluke 5 and the holding power generated by cutting into the riverbed are used for resisting the pulling force caused by the drifting trend of a ship or a floating body, when the pull rod 3 is pulled along the direction of the first end of the pull rod 3, the second end of the pull rod 3 can gradually approach to the direction of the anchor rod 1, in the process, the fluke 5 rotates around each hinging point in the direction deviating from the pulling force, so that the preset angle beta is gradually increased, the value range of the angle beta is less than or equal to pi/2, and therefore, the angle is in a normal anchoring state (of course, a plurality of flukes 5 are arranged at the second end of the pull rod 3 in a circumferential array, for example, four flukes 5 are arranged, and are not excessively limited); as shown in fig. 2, due to the provision of the resistance spring 4, when the pull rod 3 is pulled continuously (i.e., when the anchor force exceeds the design working tension), the fluke 5 will continue to rotate, at this time, the included angle beta between the anchor rod 1 and the fluke 5 will gradually increase again, when beta > pi/2, so that the holding power of the fluke 5 will gradually decrease, and the purpose of automatically unloading load can be achieved in the process of gradually increasing beta, thereby preventing the cable from being broken and facilitating the safe anchor lifting.
As shown in FIG. 5, when β+.pi/2, the tension is balanced with the resistance, i.e.: fpull=fresistance, which is also equal to the elongation elasticity of the corresponding resistance spring 4, i.e., fbullet=kΔl, where k is the stiffness coefficient of the resistance spring 4 and Δl is the elongation; the resistance born by the anchor in the sludge is F resistance=nF resistance 'sin beta=nqSsin beta, wherein F resistance' is the resistance born by a single fluke 5, namely: f resistance' =qs, N is the number of flukes 5 to be penetrated into the soil, q is the unit soil pressure (N/. Square meter), S is the stress area (square meter) of a single fluke 5; before use, the preset cutting angle beta of the fluke 5 can be adjusted by adjusting the axial displacement of the movable connecting disc 7 through a nut; according to the resistance formula, when the anchor is stressed in use, the cutting angle beta of the fluke 5 can be increased along with the increase of the pulling force F, the resistance F is correspondingly increased, and when beta=pi/2, the resistance F has the maximum value and is also the design working pulling force; when delta is larger than pi/2, the resistance force Fresistance is smaller, and as the pulling force Fpull is increased, the resistance spring 4 continues to stretch, and Fpull=Fbullet is larger than Fresistance, so that the safe anchor is conveniently pulled.
As shown in fig. 3 and 4, since the resistance spring 4 is sleeved outside the pull rod 3, and both ends thereof are respectively fixed at the first end of the pull rod 3 and one end of the anchor rod 1, the resistance spring can enable the fluke 5 to be in an anchoring state within a certain tension range, and the fluke 5 can still be rotated after breaking through the tension range, but the holding power of the fluke 5 can be gradually reduced due to the change of the angle so as to be converted from the anchoring state to the anchor-lifting state, and the process depends on the magnitude of the tension acting on the first end of the pull rod 3, so that the situation that an anchor chain and/or an anchor device are broken due to overload is prevented.
The first end of the pull rod 3 is provided with a hanging hole 301, and one end of the resistance spring 4 is hung on the hanging hole 301.
In this embodiment, as shown in fig. 1 and 2, in order to fix one end of the resistance spring 4 to the first end of the pull rod 3, a hanging hole 301 is provided at the first end of the pull rod 3 to hang the end of the resistance spring 4 therein, so as to stretch the resistance spring 4 while pulling the pull rod 3; further, the anchor rod 1 is provided with a mounting opening 101 and a gland 6 covered on the mounting opening 101, a containing position is defined between the gland 6 and the mounting opening 101, and the other end of the resistance spring 4 is fixed; when the pull rod 3 is not pulled, the pull rod 3 can be quickly reset under the action of the resistance spring 4, so that the fluke 5 is converted from the anchor-taking state to the initial preset state for the next use. Of course, in order to adapt to the shape of the resistance spring 4, the cross section of the mounting opening 101 is semicircular, and the gland 6 is adapted to the shape of the mounting opening 101, so as to cover and compress the resistance spring 4. Preferably, for easy installation, the resistance spring 4 has a large diameter end and a small diameter end which are disposed opposite to each other, the large diameter end of the resistance spring 4 being disposed toward the anchor rod 1, and the small diameter end thereof being disposed toward the first end of the tie rod 3 for the tie rod 3 to be inserted therein; of course, in order to hang the small diameter end of the resistance spring 4 at the hanging hole 301 of the tie rod 3, a hook adapted to the hanging hole 301 is provided at the small diameter end.
Both ends of the deflection connecting rod are respectively hinged with the support 2 and the corresponding fluke 5.
In this embodiment, as shown in fig. 1 and 2, in order to enable smooth transition between the anchoring state and the anchor state of the fluke 5, the support 2 and each fluke 5 are connected by a displacement link, namely: both ends of the deflection connecting rod are respectively hinged with the support 2 and the fluke 5 so as to enable the fluke 5 and the deflection connecting rod to rotate around a hinge point.
The support 2 is provided with a containing groove 201, an opening of the containing groove 201 faces to the second end of the pull rod 3, and in the anchor-up state, part of the fluke 5 stretches into the containing groove 201.
In this embodiment, as shown in fig. 1 and 2, in order to increase the rotation range of the fluke 5, a receiving groove 201 is provided on the support 2, and an opening of the receiving groove 201 faces the second end of the pull rod 3, so as to prevent the fluke 5 from impacting the support 2 during rotation, so that one end of the fluke 5 can extend into the receiving groove 201 in the anchor-lifting state.
The anchorage device further comprises a movable connecting disc 7, the movable connecting disc 7 is arranged at the second end of the pull rod 3, and each fluke 5 is hinged to the movable connecting disc 7.
In this embodiment, as shown in fig. 1 and 2, in order to achieve the purpose of pulling the pull rod 3 to drive the fluke 5 to rotate, a movable connection disc 7 is sleeved at the second end of the pull rod 3, the movable connection disc 7 is used for being hinged with one end of each fluke 5, and in the process of converting the anchoring state into the anchor-lifting state, the fluke 5 can rotate around a hinge point with the movable connection disc 7, so that the coordination action of each fluke 5 is facilitated. Further, in order to facilitate fixing the movable connection disc 7 to the second end of the pull rod 3, the second end of the pull rod 3 is provided with a threaded structure for the locking nut 8 to abut against the movable connection disc 7 after being screwed in; of course, lock nuts 8 are arranged at the two ends of the movable connecting disc 7 so as to lock the movable connecting disc at the second end of the pull rod 3, and the movable connecting disc and the pull rod are prevented from moving relatively.
The fluke 5 is provided with an inclined contact surface 501.
In this embodiment, as shown in fig. 1, in order to be able to be embedded in a river bed so that the fluke 5 is in a moored state, the end of the fluke 5 facing away from the movable connection disc 7 is provided with an inclined contact surface 501.
The first end of the pull rod 3 is provided with a pull ring 302.
In this embodiment, as shown in fig. 1 and 2, the pull ring 302 on the pull rod 3 is used for the anchor cable to pass through and fix, so as to pull the pull rod 3 to move along the first end direction thereof.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (10)
1. An overload dump anchor, comprising:
the anchor rod is provided with a support;
the pull rod is provided with a first end and a second end which are oppositely arranged, and a moving part connected with the first end and the second end, and the moving part movably penetrates through the anchor rod so that the first end and the second end of the pull rod are exposed out of the anchor rod;
the resistance spring is sleeved on the pull rod and used for connecting the first end of the pull rod with the anchor rod;
the flukes are hinged to the second end of the pull rod and are hinged to the support through various deflection connecting rods;
the pull rod moves along the first end of the pull rod relative to the anchor rod, so that the anchor fluke is linked to rotate around the hinging point in a direction gradually away from the anchor rod, an anchoring state and an anchor lifting state are sequentially formed, an included angle beta 1, beta 1 is less than or equal to pi/2 is formed between the anchor rod and the anchor fluke in the anchoring state, and an included angle beta 2, beta 2 is more than pi/2 is formed between the anchor rod and the anchor fluke in the anchor lifting state.
2. The overload self-dumping anchor of claim 1, wherein the first end of the pull rod is provided with a hanging hole, and one end of the resistance spring is hung in the hanging hole.
3. An overload dump anchor as set forth in claim 2 wherein said anchor has a mounting opening and a gland covering said mounting opening, said gland and said mounting opening defining a receptacle therebetween for securing the other end of said resistance spring.
4. An overload dump anchor as claimed in any one of claims 1 to 3 wherein the resistance spring has oppositely disposed large diameter ends and small diameter ends, the large diameter ends of the resistance spring being disposed towards the anchor rod and the small diameter ends thereof being disposed towards the first end of the tie rod.
5. An overload dump anchor as claimed in claim 1 wherein the two ends of the deflection link are hinged to the support and the corresponding fluke respectively.
6. An overload self-dumping anchor as claimed in claim 1 or claim 5, wherein the support is provided with a receiving recess, the opening of the receiving recess being towards the second end of the tie rod, and in the anchored condition a portion of the fluke extends into the receiving recess.
7. The overload dump anchor of claim 1, further comprising a movable connection pad, wherein the movable connection pad is disposed at the second end of the pull rod, and wherein each of the flukes is hinged to the movable connection pad.
8. The overload self-dumping anchor of claim 7, wherein the second end of the tie rod has a threaded configuration for abutment with the movable connection pad after the lock nut is threaded in.
9. An overload dump anchor as claimed in claim 1 wherein the fluke is provided with inclined contact surfaces.
10. An overload dump anchor as claimed in claim 1 wherein the first end of the pull rod is provided with a pull ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310325421.0A CN116812073A (en) | 2023-03-29 | 2023-03-29 | Overload self-unloading anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310325421.0A CN116812073A (en) | 2023-03-29 | 2023-03-29 | Overload self-unloading anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116812073A true CN116812073A (en) | 2023-09-29 |
Family
ID=88119196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310325421.0A Pending CN116812073A (en) | 2023-03-29 | 2023-03-29 | Overload self-unloading anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116812073A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117702795A (en) * | 2023-12-14 | 2024-03-15 | 江苏科技大学 | Pile foundation capable of preventing anchor chain from being stretched and seabed groove from being formed and implementation method thereof |
-
2023
- 2023-03-29 CN CN202310325421.0A patent/CN116812073A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117702795A (en) * | 2023-12-14 | 2024-03-15 | 江苏科技大学 | Pile foundation capable of preventing anchor chain from being stretched and seabed groove from being formed and implementation method thereof |
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