CN210217648U - Secondary locking mechanism for automatic locking and unlocking of underwater connector - Google Patents
Secondary locking mechanism for automatic locking and unlocking of underwater connector Download PDFInfo
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- CN210217648U CN210217648U CN201921107282.XU CN201921107282U CN210217648U CN 210217648 U CN210217648 U CN 210217648U CN 201921107282 U CN201921107282 U CN 201921107282U CN 210217648 U CN210217648 U CN 210217648U
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- stopping pawl
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 15
- 210000000078 claw Anatomy 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
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Abstract
The utility model discloses a secondary locking mechanism that is used for automatic locking and unblock of connector under water, including connector under water, ratchet structure, locking pawl and limit structure, the connector includes connector, lower connector, jack catch, drive ring and pneumatic cylinder under water. Compared with the prior art, the utility model discloses a secondary locking mechanism only needs the pneumatic cylinder drive, needn't use external instrument to operate, has high rapidity to realize can in time accomplishing breaking away from of connector when the typhoon arrives, accomplish the recovery of mechanism under water, reduce the loss.
Description
Technical Field
The utility model relates to a coupler technical field especially relates to a secondary locking mechanism that is used for automatic locking and unblock of connector under water.
Background
In view of the gradual depletion of onshore oil resources, the oil drilling operation in our country gradually shifts to the ocean, and with the development of the ocean drilling technology, the oil drilling gradually steps from the conventional water depth to deep water and ultra-deep sea areas. The main battlefield of China's ocean drilling is in the south China sea area, the depth range of drilling operation water is large, the environmental conditions are severe, and frequently-occurring typhoons/hurricanes seriously affect the drilling operation.
In typhoon/hurricane conditions, conventional risers require that each riser string be retrieved onto the rig, and the rig is then removed from the shelter, which is time consuming and unsafe to operate. Often, the marine riser cannot be timely recovered due to the fact that the measures for preventing and avoiding the platform are not in place, so that the marine riser is damaged under the typhoon condition, marine riser accidents occur, and drilling shutdown is caused. Under the background, the anti-typhoon drilling riser system concept is provided, so that the problem that the riser cannot be timely recovered under the severe weather condition can be easily solved, the anti-typhoon performance of the riser system is enhanced, and the safety and the reliability of the drilling system are improved. Before a typhoon comes, the anti-typhoon drilling marine riser can be quickly separated from the offshore surface, only a small part of the marine riser is recovered, and the rest most of the marine riser keeps free standing in seawater and is supported by buoyancy provided by the buoyancy tank. And after the typhoon, the drilling platform drives back to the original drilling position, the recovered upper marine riser is connected with the lower marine riser again, and the drilling operation is recovered. The system can greatly shorten the time for recovering the marine riser before the typhoon comes and reconnecting the marine riser after the typhoon passes, greatly reduce the risk of recovering and releasing the marine riser, and effectively improve the safety and reliability of the whole drilling system.
The underwater connector is a core component of the bench drilling prevention water insulation pipe system, and the underwater connector mainly has the functions of connecting an upper water insulation pipe and a lower water insulation pipe. Before severe weather such as typhoon/hurricane comes, the platform control room sends out a disengaging instruction to control a hydraulic driving system on the connector to complete disengaging operation; after the typhoon/hurricane passes, the platform is opened to the position above the wellhead to lower the upper marine riser, and the upper marine riser and the lower marine riser are connected by means of the assistance of the ROV and the action of the hydraulic system. In the process, the locking of the connector is a key technology for realizing the connection and the unlocking of the connector, and particularly, a secondary locking technology which is inconvenient to operate is a technical challenge for firmly connecting the connector.
At present, a secondary locking device of an underwater connector mostly adopts ROV (remote operated vehicle) auxiliary operation to drive a secondary locking bolt to perform locking and unlocking operations. However, the ROV operation is easily affected by the external environment, so that it is difficult to efficiently and stably complete the precise secondary locking operation, and the ROV operation is expensive and time-consuming, and cannot achieve automatic locking and unlocking, so that the connector cannot be quickly separated from the escape platform.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a secondary locking mechanism that is used for automatic locking and unblock of connector under water carries out secondary locking when realizing that the riser connector locks under the effect of hydraulic pressure jack catch to ensure that the connector still can normally be connected when hydraulic system breaks down, and realize breaking away from automatically when needs break away from.
In order to achieve the above object, the utility model provides a following scheme:
the utility model discloses a secondary locking mechanism that is used for automatic locking and unblock of connector under water, include:
an upper connector;
the lower connecting body is positioned on the lower side of the upper connecting body, an upper end opening of the lower connecting body can be abutted against a lower end opening of the upper connecting body, and the lower end of the lower connecting body is provided with a flange end face;
the middle part of each clamping jaw is rotatably connected to the outer edge of the lower end of the upper connecting body, the clamping jaws are uniformly distributed along the circumferential direction of the upper connecting body, and the upper end and the lower end of each clamping jaw are respectively provided with an outer convex part and an inner convex part;
the driving ring is sleeved on the outer side of the circumference where the clamping jaws are located;
one end of the hydraulic cylinder is fixedly connected with the upper connecting body, the other end of the hydraulic cylinder is fixedly connected with the driving ring, the driving ring can be contacted with the outer convex part when moving upwards to push the upper end of the clamping jaw to swing inwards to separate the lower connecting body from the upper connecting body, and the driving ring can be contacted with the outer edge of the lower end of the clamping jaw when moving downwards to push the lower end of the clamping jaw to swing inwards to enable the lower connecting body to be abutted against the upper connecting body;
the ratchet structure comprises a base and a ratchet bar, the lower end of the ratchet bar is fixed on the base, the inward end of the base is rotatably connected with the lower connecting body, the upper end of the ratchet bar can penetrate through the through holes in the driving ring and the upper connecting body, and the ratchet bar can swing in the through holes;
the stopping pawl is positioned on the outer side of the ratchet bar structure, the lower end of the stopping pawl is rotationally connected with the driving ring, and the upper end of the stopping pawl is used for being matched with the ratchet teeth on the ratchet bar;
the limiting structure comprises a guide pillar, a stop nut and a spring, the lower end of the guide pillar is fixed on the flange end face of the lower end of the lower connecting body, the upper end of the guide pillar upwards penetrates through the base and is in threaded connection with the stop nut, the stop nut is located on the upper side of the base, and the spring is sleeved on the outer side of the guide pillar between the base and the flange end face of the lower end of the lower connecting body.
Preferably, the upper connecting body includes a connecting cover and an upper hub, the upper end of the upper hub is fixed to the connecting cover, the through hole of the upper connecting body is located on the connecting cover, and the lower connecting body is a lower hub.
Preferably, the driving ring further comprises guide posts, the upper ends of the guide posts are fixed on the connecting cover, guide holes are formed in the driving ring, the lower ends of the guide posts downwards penetrate through the guide holes and are in sliding contact with the guide holes, and the guide posts are used for guiding the movement of the driving ring.
Preferably, a limit block is fixed on the guide column, the limit block is positioned on the upper side of the drive ring, and the limit block is used for limiting the upper limit position of the drive ring.
Preferably, the upper surface of the driving ring is provided with a pillar, the stopping pawl is rotatably connected with the pillar, the upper end of the stopping pawl can abut against the upper side edge of the pillar when rotating upwards to limit the upward swing angle of the stopping pawl, the lower end of the stopping pawl is fixed with an elastic piece, and the elastic piece can abut against the lower side edge of the pillar when rotating downwards to limit the downward swing angle of the stopping pawl.
Preferably, the pillar includes montant and horizontal pole, the lower extreme of montant is fixed in on the drive ring, the outside one end of horizontal pole is fixed in the upper end of montant, the inside one end of horizontal pole with the locking pawl rotates and is connected, the upper edge of the inside one end of horizontal pole has inside extension, the extension is used for restricting the ascending pivot angle of locking pawl.
Preferably, the locking device further comprises a locking pawl rotating shaft, the locking pawl rotating shaft penetrates through the locking pawl and the cross rod simultaneously, and a limiting block is arranged at the end part of the locking pawl rotating shaft.
Preferably, the connecting structure further comprises a base rotating shaft, a rotating seat is arranged on the flange end face of the lower end of the lower connecting body, the base rotating shaft penetrates through the base and the rotating seat simultaneously, and a limiting block is arranged at the end part of the base rotating shaft.
The utility model discloses for prior art gain following technological effect:
the utility model discloses a secondary locking mechanism only needs the pneumatic cylinder drive, needn't use external instrument to operate, has high rapidity to realize can in time accomplishing breaking away from of connector when the typhoon arrives, accomplish the recovery of mechanism under water, reduce the loss.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an unlocked state of a secondary locking mechanism for automatically locking and unlocking an underwater connector according to the embodiment;
FIG. 2 is a schematic structural diagram of a locking state of a secondary locking mechanism for automatically locking and unlocking the underwater connector according to the embodiment;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a partial enlarged view of another portion of FIG. 4;
FIG. 7 is a front view of FIG. 1;
description of reference numerals: 1, a ratchet bar; 2, a base; 3, rotating the base; 4 stopping the pawl; 5, guide pillars; 6, stopping the nut; 7, a spring; 8, a base rotating shaft; 9 stopping the pawl rotating shaft; 10 driving a ring; 11 a lower hub seat; 12 an upper hub; 13, clamping jaws; 14 hydraulic cylinders; 15 connecting the cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a secondary locking mechanism that is used for automatic locking and unblock of connector under water carries out secondary locking when realizing that the riser connector locks under the effect of hydraulic pressure jack catch to ensure that the connector still can normally be connected when hydraulic system breaks down, and realize breaking away from automatically when needs break away from.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 7, the present embodiment provides a secondary locking mechanism for automatically locking and unlocking a subsea connector, which includes a connecting body, a lower connecting body, a jaw 13, a driving ring 10, a hydraulic cylinder 14, a ratchet structure, a stopping pawl 4, and a limiting structure.
The lower connector is positioned on the lower side of the upper connector, an upper end opening of the lower connector can be abutted against a lower end opening of the upper connector, the upper connector can be connected with the upper marine riser after being abutted against the upper connector, the lower connector can be connected with the lower marine riser to form underwater connection of the upper marine riser and the lower marine riser, and the lower end of the lower connector is provided with a flange end face; the middle part of the claw 13 is rotatably connected to the outer edge of the lower end of the upper connector, the plurality of claws 13 are uniformly distributed along the circumferential direction of the upper connector, the upper end and the lower end of the claw 13 are respectively provided with an outer convex part and an inner convex part, and the angle of the claw 13 can be adjusted by rotating the claw around the rotating center, so that the lower connector is pressed or separated from the lower connector; the driving ring 10 is sleeved on the outer side of the circumference where the clamping jaws 13 are located, and when the driving ring 10 moves up and down, the driving ring can contact and push the upper ends or the lower ends of the clamping jaws 13 to rotate inwards, so that the angles of the clamping jaws 13 are controlled; one end of a hydraulic cylinder 14 is fixedly connected with the upper connecting body, the other end of the hydraulic cylinder 14 is fixedly connected with the driving ring 10, namely, the hydraulic cylinder 14 is a driving structure of the driving ring 10, the driving ring 10 can be contacted with the outer convex part when moving upwards, the upper end of the clamping jaw 13 is pushed to swing inwards, so that the lower connecting body is separated from the upper connecting body, the driving ring 10 can be contacted with the outer edge of the lower end of the clamping jaw 13 when moving downwards, the lower end of the clamping jaw 13 is pushed to swing inwards, and the lower connecting body is abutted against the upper connecting body; the structure of the ratchet bar 1 comprises a base 2 and a ratchet bar 1, the lower end of the ratchet bar 1 is fixed on the base 2, the inward end of the base 2 is rotatably connected with a lower connector, the upper end of the ratchet bar 1 can penetrate through the through holes on the driving ring 10 and the upper connector, and the ratchet bar 1 can swing in the through hole; the stopping pawl 4 is positioned at the outer side of the structure of the ratchet bar 1, the lower end of the stopping pawl 4 is rotationally connected with the driving ring 10, the upper end of the stopping pawl 4 is matched with the ratchet on the ratchet bar 1, when the stopping pawl 4 moves downwards relative to the ratchet bar 1, the stopping pawl 4 and the ratchet bar 1 are not locked with each other, and when the stopping pawl 4 moves upwards relative to the ratchet bar 1, the stopping pawl 4 and the ratchet bar 1 are locked with each other; the limiting structure comprises a guide pillar 5, a stop nut 6 and a spring 7, the lower end of the guide pillar 5 is fixed on the flange end face of the lower end of the lower connector, the upper end of the guide pillar 5 upwards penetrates through the base 2 and is in threaded connection with the stop nut 6, the stop nut 6 is located on the upper side of the base 2, the spring 7 is sleeved on the outer side of the guide pillar 5 between the flange end faces of the lower end of the lower connector and the base 2, and the limiting structure is used for enabling the ratchet bar 1 to swing and limiting the swing angle.
When the structure is used, the upper connecting body is pushed downwards by an external driving structure (an external hydraulic cylinder and the like, which is not shown in the figure), so that the lower end opening of the upper connecting body is aligned and abutted against the upper end opening of the lower connecting body, then the hydraulic cylinder 14 is extended, the driving ring 10 moves downwards and presses the outer side of the lower end of the clamping jaw 13, so that the lower end of the clamping jaw 13 is retracted, the inner convex part of the lower end of the clamping jaw 13 is contacted with the lower surface of the flange plate at the upper end of the lower connecting body, and the lower connecting; the driving ring 10 moves downwards and simultaneously drives the stopping pawl 4 to move downwards, and due to the characteristics of the ratchet mechanism, when the stopping pawl 4 slides downwards along the ratchet bar 1, no great resistance exists, and the driving ring 10 can drive the stopping pawl 4 to move downwards so as to slide along the ratchet bar 1 to complete the connection of the upper connecting body and the lower connecting body. In the process, because the clockwise rotation (the view angle in fig. 1-7 is the front view direction) of the stopping pawl 4 is limited, the stopping pawl can press the ratchet bar 1 to slightly deflect anticlockwise when sliding, the spring 7 can be slightly stretched, and the spring 7 rebounds after the connection is finished, so that the engagement of the stopping pawl 4 and the ratchet bar 1 can be ensured. At this time, the stopping pawl 4 is fixed and realizes self-locking with the ratchet bar 1 (due to the large elastic coefficient of the spring 7 and the locking function of the claw 13, the spring 7 cannot be extended to destroy the self-locking only by the dead weight of the lower connecting body and the lower structure connected with the lower connecting body and the ocean current). At this time, the connectors cannot be separated, and fixation is achieved.
When the connector needs to be disconnected, the hydraulic cylinder 14 is shortened to drive the driving ring 10 to move upwards, at the moment, the stopping pawl 4 gives a large pushing force to the ratchet bar 1 under the action of the pulling force of the hydraulic cylinder 14, the horizontal component of the pushing force causes the ratchet bar 1 to rotate anticlockwise by a large angle, the spring 7 is extended, the stopping pawl 4 also rotates anticlockwise until the ratchet bar 1 is separated from the stopping pawl 4, and the self-locking state is released. The hydraulic cylinder 14 drives the driving ring 10 to move upwards, so that the upper connecting body and the lower connecting body of the connector are separated, and the ratchet bar 1 can be reset under the action of the spring 7.
In this embodiment, the upper connector includes a connection cap 15 and an upper hub 12, an upper end of the upper hub 12 is fixed to the connection cap 15, and an outer diameter of the connection cap 15 is larger than an outer diameter of an upper end of the upper hub 12. The upper connecting body, through holes in it, is located on a connecting cover 15, the upper end of the hydraulic cylinder 14 is fixed to the connecting cover 15, and the lower connecting body is the lower hub 11. The outer diameter of the upper end of upper hub 12 may be enlarged by fixedly attaching cover 15 to upper hub 12 to facilitate installation of hydraulic cylinder 14 and other structures. In this embodiment, the connecting cover 15, the upper hub 12, the lower hub 11, the drive ring 10 and the lower hub 11 are coaxial.
In order to accurately control the moving direction of the driving ring 10, the axis of the driving ring is concentric with the array center of the claws 13, so that the movement of each claw 13 is kept consistent, the embodiment further comprises a guide column. The upper ends of the guide posts are fixed on the connecting cover 15, the driving ring 10 is provided with guide holes, the lower ends of the guide posts downwards penetrate through the guide holes and are in sliding contact with the guide holes, and the guide posts are used for guiding the movement of the driving ring 10.
Furthermore, in the embodiment, a limiting block is fixed on the guiding column, the limiting block is located on the upper side of the driving ring 10, and the limiting block is used for limiting the upper limit position of the driving ring 10.
The stopping pawls 4 are rotatably coupled to the drive ring 10 in various ways, and in this embodiment, the drive ring 10 has a support post on the upper surface thereof, to which the stopping pawls 4 are rotatably coupled. The upper end of the stopping pawl 4 can be abutted against the upper side edge of the support column when rotating upwards (namely, the stopping pawl 4 rotates clockwise), so that the upward swing angle of the stopping pawl 4 is limited. An elastic piece is fixed at the lower end of the stopping pawl 4, and when the upper end of the stopping pawl 4 rotates downwards, the elastic piece can be abutted against the lower side edge of the support column to limit the downward swing angle of the stopping pawl 4. When the connector needs to be separated, the ratchet bar 1 rotates anticlockwise at a larger angle under the action of the hydraulic cylinder 14, the spring 7 extends, the stopping pawl 4 also rotates anticlockwise, the elastic piece abuts against the support column and elastically deforms, and the elastic piece can reset the stopping pawl 4 after the stopping pawl 4 is separated from the ratchet bar 1.
Further, in this embodiment, the pillar includes a vertical rod and a horizontal rod, a lower end of the vertical rod is fixed on the driving ring 10, an outward end of the horizontal rod is fixed on an upper end of the vertical rod, an inward end of the horizontal rod is rotatably connected with the stopping pawl 4, an upper edge of the inward end of the horizontal rod has an inward extending portion, and the extending portion is used for limiting an upward swing angle of the stopping pawl 4.
The rotation connection mode of the stopping pawl 4 and the cross rod is that a stopping pawl rotating shaft 9 simultaneously penetrates through the stopping pawl 4 and the cross rod, and a limiting block is arranged at the end part of the stopping pawl rotating shaft 9. The base 2 and the lower hub 11 are rotatably connected in a manner that a rotary base 3 is fixedly arranged on the end face of a flange at the lower end of the lower hub 11, so that a base rotating shaft 8 simultaneously penetrates through the base 2 and the rotary base 3, and a limit block is arranged at the end part of the base rotating shaft 8. Other rotational connections may be selected by those skilled in the art so long as the rotational connection is achieved.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A secondary locking mechanism for automatic locking and unlocking of an underwater connector, comprising:
an upper connector;
the lower connecting body is positioned on the lower side of the upper connecting body, an upper end opening of the lower connecting body can be abutted against a lower end opening of the upper connecting body, and the lower end of the lower connecting body is provided with a flange end face;
the middle part of each clamping jaw is rotatably connected to the outer edge of the lower end of the upper connecting body, the clamping jaws are uniformly distributed along the circumferential direction of the upper connecting body, and the upper end and the lower end of each clamping jaw are respectively provided with an outer convex part and an inner convex part;
the driving ring is sleeved on the outer side of the circumference where the clamping jaws are located;
one end of the hydraulic cylinder is fixedly connected with the upper connecting body, the other end of the hydraulic cylinder is fixedly connected with the driving ring, the driving ring can be contacted with the outer convex part when moving upwards to push the upper end of the clamping jaw to swing inwards to separate the lower connecting body from the upper connecting body, and the driving ring can be contacted with the outer edge of the lower end of the clamping jaw when moving downwards to push the lower end of the clamping jaw to swing inwards to enable the lower connecting body to be abutted against the upper connecting body;
the ratchet structure comprises a base and a ratchet bar, the lower end of the ratchet bar is fixed on the base, the inward end of the base is rotatably connected with the lower connecting body, the upper end of the ratchet bar can penetrate through the through holes in the driving ring and the upper connecting body, and the ratchet bar can swing in the through holes;
the stopping pawl is positioned on the outer side of the ratchet bar structure, the lower end of the stopping pawl is rotationally connected with the driving ring, and the upper end of the stopping pawl is used for being matched with the ratchet teeth on the ratchet bar;
the limiting structure comprises a guide pillar, a stop nut and a spring, the lower end of the guide pillar is fixed on the flange end face of the lower end of the lower connecting body, the upper end of the guide pillar upwards penetrates through the base and is in threaded connection with the stop nut, the stop nut is located on the upper side of the base, and the spring is sleeved on the outer side of the guide pillar between the base and the flange end face of the lower end of the lower connecting body.
2. The secondary locking mechanism for automatically locking and unlocking a subsea connector as claimed in claim 1, wherein said upper connector comprises a connector cap and an upper hub, an upper end of said upper hub being fixed to said connector cap, said through hole in said upper connector being located in said connector cap, and said lower connector being a lower hub.
3. The secondary locking mechanism for automatically locking and unlocking an underwater connector as claimed in claim 2, further comprising a guide post, wherein the upper end of the guide post is fixed to the connecting cover, the driving ring is provided with a guide hole, the lower end of the guide post passes downward through the guide hole and is in sliding contact with the guide hole, and the guide post is used for guiding the movement of the driving ring.
4. The secondary locking mechanism for automatically locking and unlocking an underwater connector as claimed in claim 3, wherein a stopper block is fixed to the guide post, the stopper block is located on the upper side of the driving ring, and the stopper block is used for limiting the upper limit position of the driving ring.
5. The secondary locking mechanism for automatically locking and unlocking an underwater connector as claimed in claim 1, wherein the upper surface of the driving ring is provided with a pillar, the stopping pawl is rotatably connected with the pillar, the upper end of the stopping pawl can abut against the upper side edge of the pillar when rotating upwards to limit the upward swing angle of the stopping pawl, the lower end of the stopping pawl is fixed with an elastic piece, and the elastic piece can abut against the lower side edge of the pillar when rotating downwards to limit the downward swing angle of the stopping pawl.
6. The secondary locking mechanism for automatically locking and unlocking an underwater connector as claimed in claim 5, wherein the pillar comprises a vertical rod and a horizontal rod, the lower end of the vertical rod is fixed on the driving ring, the outward end of the horizontal rod is fixed on the upper end of the vertical rod, the inward end of the horizontal rod is rotatably connected with the stopping pawl, the upper edge of the inward end of the horizontal rod is provided with an inward extending part, and the extending part is used for limiting the upward swing angle of the stopping pawl.
7. The secondary locking mechanism for automatically locking and unlocking an underwater connector as claimed in claim 6, further comprising a stopping pawl rotating shaft, wherein the stopping pawl rotating shaft penetrates through the stopping pawl and the cross bar at the same time, and a limiting block is arranged at the end of the stopping pawl rotating shaft.
8. The secondary locking mechanism for automatically locking and unlocking an underwater connector as claimed in claim 1, further comprising a base rotating shaft, wherein a rotating seat is arranged on the flange end face of the lower end of the lower connecting body, the base rotating shaft penetrates through the base and the rotating seat simultaneously, and a limiting block is arranged at the end of the base rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921107282.XU CN210217648U (en) | 2019-07-16 | 2019-07-16 | Secondary locking mechanism for automatic locking and unlocking of underwater connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921107282.XU CN210217648U (en) | 2019-07-16 | 2019-07-16 | Secondary locking mechanism for automatic locking and unlocking of underwater connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217648U true CN210217648U (en) | 2020-03-31 |
Family
ID=69916952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921107282.XU Withdrawn - After Issue CN210217648U (en) | 2019-07-16 | 2019-07-16 | Secondary locking mechanism for automatic locking and unlocking of underwater connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206497A (en) * | 2019-07-16 | 2019-09-06 | 中国地质科学院 | It is a kind of for the automatically lock of underwater connector and the secondary locking mechanism of unlock |
-
2019
- 2019-07-16 CN CN201921107282.XU patent/CN210217648U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206497A (en) * | 2019-07-16 | 2019-09-06 | 中国地质科学院 | It is a kind of for the automatically lock of underwater connector and the secondary locking mechanism of unlock |
| CN110206497B (en) * | 2019-07-16 | 2024-03-12 | 中国地质科学院 | Automatic locking and unlocking secondary locking mechanism for underwater connector |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |