Electric retractable stabilizing fin for unmanned ship
By designing transmission gears and a cleaning scraper structure to clean impurities from the storage tank of the electrically deployed and retractable stabilizing fins of the unmanned vessel, the problem of entanglement caused by impurity adhesion was solved, achieving high stability and cleanliness of the stabilizing fins.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING CHENLAN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-04-17
AI Technical Summary
Existing unmanned surface vessels (USVs) with electrically operated stabilizing fins are prone to entanglement due to impurities in rivers, affecting their long-term operational stability.
A structure including a transmission gear, a rack, and a cleaning scraper is designed. The scraper is driven by the meshing of the gears to clean the impurities on the inner wall of the collection groove, and the impurities on the surface of the connecting curved plate are reduced by the air jet pipe. The cleaning effect is enhanced by the combination of a magnetic plate and a spring column.
It effectively cleans impurities from the inner wall of the storage tank, reduces the probability of entanglement, and improves the long-term working stability and cleanliness of the stabilizing fins.
Smart Images

Figure CN224131267U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of unmanned vessel stabilization fin technology, specifically an electrically retractable and extendable stabilization fin for unmanned vessels. Background Technology
[0002] When the unmanned surface vessel (USV) is sailing, the use of stabilizing fins can effectively improve the stability of the hull. When the USV is being deployed or retracted, the deployment and retraction components can store the stabilizing fins, thereby reducing the possibility of collisions between the stabilizing fins and external objects.
[0003] In the existing technology, Chinese Patent Publication No. CN214524276U discloses an electrically retractable stabilizing fin for an unmanned surface vessel (USV) and the USV itself. The electrically retractable stabilizing fin includes a stabilizing fin, a drive motor, and a storage slot. The drive motor is connected to the stabilizing fin and controls its rotation. The stabilizing fin can be movably placed in the storage slot, which includes a connecting part for fixing to the hull and a slot for storing the stabilizing fin. The USV also includes a hull. The overall structure of the electrically retractable stabilizing fin and the USV of this invention is simple and reasonable, and easy to use. By driving the stabilizing fin down with the drive motor, the USV's resistance to water surface wave interference can be effectively improved. The stabilizing fin can be retracted into the storage slot to reduce driving resistance.
[0004] The aforementioned electrically retractable and deployable stabilizing fins for unmanned vessels are prone to accumulating on the inner wall of the collection tank due to the abundance of impurities and objects in the river during long-term operation. This increases the probability of impurities and objects becoming entangled in the stabilizing fins. Therefore, an electrically retractable and deployable stabilizing fin for unmanned vessels is proposed to address this problem. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes an electrically retractable and extendable stabilizing fin for unmanned vessels.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An electrically retractable stabilizing fin for an unmanned surface vessel, comprising a hull; a storage groove is provided at the bottom of the hull; a drive assembly is provided at the bottom inner side of the hull; a stabilizing fin body is rotatably connected to the inner side of the storage groove; the stabilizing fin body is interconnected with the drive assembly; an expansion groove is provided at the top of the storage groove; a connecting curved plate is provided at the top of the stabilizing fin body; the connecting curved plate is located inside the expansion groove; a transmission gear is rotatably connected to the inner side of the expansion groove; the connecting curved plate and the transmission gear mesh with each other; multiple sets of tooth grooves are provided on both sides of the transmission gear; a pair of racks are slidably connected to the inner side of the expansion groove; the racks mesh with the tooth grooves; a first cleaning scraper is fixedly connected to the bottom end of the rack away from the tooth groove; the outer side wall of the first cleaning scraper is in contact with the inner side wall of the storage groove.
[0007] Preferably, a protective box is provided at the bottom of the hull; the protective box is fitted over the outside of the connecting curved plate; an airbag is provided inside the protective box; a compression plate is slidably connected to the inside of the protective box; a connecting flexible plate is fixedly connected to the side wall of the compression plate; the connecting flexible plate is connected to the top of the connecting curved plate; a connecting pipe is provided at the bottom of the airbag; air jet pipes are provided on both sides of the bottom of the connecting pipe; the bottom end of the expansion slot is located inside the storage slot; multiple sets of sealing valves are fixedly connected to the inner wall of the bottom end of the airbag; a connecting top pipe is slidably connected to the top of the protective box; the connecting top pipe is connected to the top of the airbag.
[0008] Preferably, the first cleaning scraper has grooves on both sides of its inner walls; a spring post is fixedly connected to the inner side wall of each pair of grooves that are close to each other; multiple sets of spring posts are provided on the inner side wall of the grooves; a second cleaning scraper is slidably connected to the inner side of the grooves; and the spring post and the second cleaning scraper are connected to each other.
[0009] Preferably, a closed sleeve is fixedly connected to the top of the protective box; the closed sleeve is fitted onto the top of the connecting top pipe; a filter plate is fixedly connected to the top of the inner side of the closed sleeve.
[0010] Preferably, a support column is fixedly connected to the inner side wall of the expansion groove away from the rack; a connecting ring is sleeved on the outer side of the support column; the connecting ring is connected to the rack.
[0011] Preferably, a first magnetic plate is fixedly connected to the side wall of the second cleaning scraper; a second magnetic plate is fixedly connected to the inner side wall of the chute; both the first magnetic plate and the second magnetic plate are disposed inside a pair of spring columns.
[0012] Preferably, a pair of limiting rods are slidably connected to the top of the protective box; the limiting rods are connected to the top of the extrusion plate.
[0013] The beneficial effects of this utility model are:
[0014] 1. This utility model provides an electrically operated stabilizing fin for an unmanned surface vessel. A connecting curved plate drives a transmission gear to rotate. The rotating transmission gear drives a pair of racks to move towards the tooth grooves. Since the racks are connected to a first cleaning scraper, the first cleaning scraper rotates as well. During the movement of the first cleaning scraper, impurities and items adhering to the inner wall of the storage tank are scraped away, thereby improving the cleanliness of the inner wall of the storage tank. This also reduces the probability of impurities adhering to the inner wall of the storage tank, thus reducing the likelihood of impurities and items becoming entangled in the stabilizing fin. The overall device improves the stability of the stabilizing fin during long-term operation.
[0015] 2. This utility model provides an electrically retractable stabilizing fin for an unmanned surface vessel. By using a connecting pipe and a jet pipe to spray air onto the outer wall of a connecting curved plate, the amount of impurities adhering to the surface of the connecting curved plate is reduced. The overall device improves the cleanliness of the surface of the connecting curved plate and enhances the stability of the connecting curved plate drive transmission gear during long-term operation. Furthermore, the sealing valve can seal the jet pipe, blocking the water flow inside the jet pipe when the airbag is not compressed downwards. The connecting top pipe can also connect the airbag to the outside air. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a perspective view of the hull of this utility model;
[0018] Figure 2 This is a perspective view of the storage slot in this utility model;
[0019] Figure 3 This is a perspective view of the drive component in this utility model;
[0020] Figure 4 yes Figure 3 Enlarged view of point A;
[0021] Figure 5 This is a perspective view of the rack in this utility model;
[0022] Figure 6 This is a three-dimensional view of the airbag in this utility model;
[0023] Figure 7 This is a perspective view of the first cleaning scraper in this utility model.
[0024] Legend: Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Specific implementation examples are given below.
[0027] Please see Figures 1-7 This utility model provides an electrically retractable stabilizing fin for an unmanned surface vessel, comprising a hull 1; a storage groove 11 is provided at the bottom of the hull 1; a drive assembly 12 is provided at the bottom inner side of the hull 1; a stabilizing fin body 13 is rotatably connected to the inner side of the storage groove 11; the stabilizing fin body 13 is interconnected with the drive assembly 12; an expansion groove 15 is provided at the top of the storage groove 11; a connecting curved plate 14 is provided at the top of the stabilizing fin body 13; the connecting curved plate 14 is located inside the expansion groove 15; a transmission gear 16 is rotatably connected to the inner side of the expansion groove 15; the connecting curved plate 14 and the transmission gear 16 mesh with each other; multiple sets of toothed grooves 17 are provided on both sides of the transmission gear 16; a pair of racks 18 are slidably connected to the inner side of the expansion groove 15; the racks 18 mesh with the toothed grooves 17; a first cleaning scraper 19 is fixedly connected to the bottom end of the rack 18 away from the toothed grooves 17; the first... The outer wall of the cleaning scraper 19 is in contact with the inner wall of the storage groove 11. During operation, the drive assembly 12 is activated to retract and extend the stabilizing fin body 13. As the stabilizing fin body 13 rotates upward, the transmission gear 16 is driven to rotate along with it via the connecting curved plate 14. The rotating transmission gear 16 drives a pair of racks 18 to move towards the racks 17 via the tooth groove 17. Since the racks 18 are connected to the first cleaning scraper 19, the first cleaning scraper 19 rotates along with it. During the movement of the first cleaning scraper 19, impurities and items attached to the inner wall of the storage groove 11 can be scraped off, thereby improving the cleanliness of the inner wall of the storage groove 11. This also reduces the probability of impurities adhering to the inner wall of the storage groove 11 and ultimately increasing the likelihood of impurities and items entangled in the stabilizing fin body 13. The overall device improves the stability of the stabilizing fin body 13 during long-term operation.
[0028] Furthermore, such as Figure 5 and Figure 6As shown, a protective box 2 is provided on the bottom inner side of the hull 1; the protective box 2 is sleeved on the outside of the connecting curved plate 14; an airbag 21 is provided on the inner side of the protective box 2; a compression plate 22 is slidably connected to the inner side of the protective box 2; a connecting flexible plate 23 is fixedly connected to the side wall of the compression plate 22; the connecting flexible plate 23 is connected to the top of the connecting curved plate 14; a connecting pipe 24 is connected to the bottom of the airbag 21; jet pipes 25 are connected to both sides of the bottom of the connecting pipe 24; the bottom end of the expansion slot 15 is located inside the storage slot 11; multiple sets of sealing valves 26 are fixedly connected to the inner side wall of the bottom end of the airbag 21; a connecting top pipe 27 is slidably connected to the top of the protective box 2; the connecting top pipe 27 is connected to the top of the airbag 21. During operation, as the stabilizing fin body 13 moves, the connecting curved plate 14 drives the connecting flexible plate 23 to push the airbag 21 downward. During the pushing of the airbag 21, air is sprayed onto the outer wall of the connecting curved plate 14 through the connecting pipe 24 and the jet pipe 25, thereby reducing the amount of impurities adhering to the surface of the connecting curved plate 14. The overall device improves the cleanliness of the surface of the connecting curved plate 14 and enhances the stability of the connecting curved plate 14 driving the transmission gear 16 during long-term operation. The sealing valve 26 can seal the jet pipe 25, blocking the water flow inside the jet pipe 25 when the airbag 21 is not pushed downward. The connecting top pipe 27 can connect the airbag 21 with the outside air.
[0029] Furthermore, such as Figure 7 As shown, the first cleaning scraper 19 has grooves 3 on both sides of its inner walls; a pair of grooves 3 have spring posts 31 fixedly connected to each other on their inner side walls; multiple sets of spring posts 31 are arranged on the inner side walls of the grooves 3; a second cleaning scraper 32 is slidably connected to the inner side of the grooves 3; the spring posts 31 and the second cleaning scraper 32 are connected to each other; during operation, the second cleaning scraper 32 is made of elastic material; the spring posts 31 and the second cleaning scraper 32 cooperate with each other to push the second cleaning scraper 32 to move inside the grooves 3, and finally the end of the second cleaning scraper 32 is in contact with the inner side wall of the storage tank 11, and during the movement of the first cleaning scraper 19, the second cleaning scraper 32 can also squeeze and clean the impurities attached to the inner side wall of the storage tank 11; the overall device improves the cleanliness of the inside of the storage tank 11.
[0030] Furthermore, such as Figure 5As shown, a sealing sleeve 4 is fixedly connected to the top of the protective box 2; the sealing sleeve 4 is sleeved on the top of the connecting top pipe 27; a filter plate 41 is fixedly connected to the top of the inner side of the sealing sleeve 4; during operation, the sealing sleeve 4 can protect external objects, thereby reducing the occurrence of external objects directly contacting the connecting top pipe 27; improving the stability of the overall device during operation; and the filter plate 41 can filter the air adsorbed by the connecting top pipe 27, thereby reducing the occurrence of external impurities entering the inside of the airbag 21 through the connecting top pipe 27.
[0031] Furthermore, such as Figure 4 As shown, a support column 51 is fixedly connected to the inner side wall of the expansion groove 15 away from the rack 18; a connecting ring 5 is sleeved on the outer side of the support column 51; the connecting ring 5 is connected to the tooth groove 17; during operation, and during the movement of the rack 18, the tooth groove 17, the connecting ring 5 and the support column 51 cooperate with each other, which can improve the stability of the rack 18 during long-term operation.
[0032] Furthermore, such as Figure 7 As shown, a first magnetic plate 6 is fixedly connected to the side wall of the second cleaning scraper 32; a second magnetic plate 61 is fixedly connected to the inner side wall of the slide groove 3; both the first magnetic plate 6 and the second magnetic plate 61 are disposed inside a pair of spring columns 31; during operation, the first magnetic plate 6 and the second magnetic plate 61 repel each other due to magnetic force, thereby making the end of the second cleaning scraper 32 fit more closely to the inner side wall of the collection groove 11; the overall device improves the cleaning effect of the second cleaning scraper 32 on the impurities attached to the inner side wall of the collection groove 11.
[0033] Furthermore, such as Figure 5 As shown, a pair of limiting rods 7 are slidably connected to the top of the protective box 2; the limiting rods 7 are connected to the top of the extrusion plate 22; during operation, as the connecting curved plate 14 drives the airbag 21 to move downward through the connecting flexible plate 23 and the extrusion plate 22, the limiting rods 7 can limit the deformed airbag 21, thereby improving the stability of the airbag 21 during long-term operation.
[0034] Working principle: During operation, the drive assembly 12 is activated, which allows the stabilizing fin body 13 to extend and retract. As the stabilizing fin body 13 rotates upwards, the connecting curved plate 14 drives the transmission gear 16 to rotate as well. The rotating transmission gear 16 drives a pair of racks 18 to move towards the tooth groove 17. Because the racks 18 are connected to the first cleaning scraper 19, the first cleaning scraper 19 rotates as well. During the movement of the first cleaning scraper 19, impurities and items adhering to the inner wall of the storage tank 11 are scraped away, thereby improving the cleanliness of the inner wall of the storage tank 11 and reducing the amount of impurities adhering to the inner wall of the storage tank 11. Ultimately, this process removes impurities and items from the inner wall of the storage tank 11. The probability of objects becoming entangled in the stabilizing fin body 13 increases; the overall device improves the stability of the stabilizing fin body 13 during long-term operation; during operation, as the stabilizing fin body 13 moves, the connecting curved plate 14 drives the connecting flexible plate 23 to push the airbag 21 downwards, and during the compression of the airbag 21, air is sprayed onto the outer wall of the connecting curved plate 14 through the connecting pipe 24 and the jet pipe 25, thereby reducing the amount of impurities adhering to the surface of the connecting curved plate 14; the overall device improves the cleanliness of the surface of the connecting curved plate 14 and improves the stability of the connecting curved plate 14 driving the transmission gear 16 during long-term operation; and the sealing valve 26 can seal the jet pipe 25, ensuring the stability of the airbag 21. When not being pressed downwards, the water flow inside the jet pipe 25 can be blocked, and the connecting top pipe 27 can connect the airbag 21 with the outside air. During operation, the second cleaning scraper 32 is made of elastic material. The spring column 31 cooperates with the second cleaning scraper 32 to push the second cleaning scraper 32 to move inside the slide 3. Finally, the end of the second cleaning scraper 32 is in contact with the inner wall of the collection tank 11. During the movement of the first cleaning scraper 19, the second cleaning scraper 32 can also squeeze and clean the impurities attached to the inner wall of the collection tank 11. The overall device improves the cleanliness of the inside of the collection tank 11. During operation, the sealing sleeve column 4 can protect external objects, thereby reducing the direct impact of external objects. The contact between the connecting top pipe 27 and the air purifier is improved, thus enhancing the overall stability of the device during operation. Furthermore, the filter plate 41 filters the air adsorbed by the connecting top pipe 27, reducing the likelihood of external impurities entering the airbag 21 through the connecting top pipe 27. During operation, as the rack 18 moves, the toothed groove 17, connecting ring 5, and support column 51 cooperate to improve the stability of the rack 18 during prolonged operation. During operation, the first magnetic plate 6 and the second magnetic plate 61 repel each other due to magnetic force, causing the end of the second cleaning scraper 32 to fit more closely to the inner wall of the collection groove 11. The overall device improves the cleaning effect of the second cleaning scraper 32 on the impurities adhering to the inner wall of the collection groove 11.During operation, as the connecting curved plate 14 moves the airbag 21 downwards via the connecting flexible plate 23 and the extrusion plate 22, the limiting rod 7 can limit the deformation of the airbag 21, thereby improving the stability of the airbag 21 during long-term operation.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An electrically deployable stabilizing fin for an unmanned ship, comprising a hull (1); characterized in that: The bottom of the hull (1) is provided with a storage slot (11); a drive assembly (12) is provided on the inner bottom of the hull (1); a stabilizing fin body (13) is rotatably connected to the inner side of the storage slot (11); the stabilizing fin body (13) and the drive assembly (12) are interconnected; an expansion slot (15) is provided at the top of the storage slot (11); a connecting curved plate (14) is provided at the top of the stabilizing fin body (13); the connecting curved plate (14) is located inside the expansion slot (15); the expansion slot (15) is located inside the expansion slot (15). A transmission gear (16) is rotatably connected to the side; the connecting curved plate (14) meshes with the transmission gear (16); multiple sets of tooth grooves (17) are opened on both sides of the transmission gear (16); a pair of racks (18) are slidably connected to the inside of the expansion groove (15); the racks (18) mesh with the tooth grooves (17); a first cleaning scraper (19) is fixedly connected to the bottom of the rack (18) away from the tooth grooves (17); the outer side wall of the first cleaning scraper (19) is in contact with the inner side wall of the storage groove (11).
2. An electrically deployable stabilizing fin for an unmanned ship as claimed in claim 1, characterized in that: A protective box (2) is provided on the bottom inner side of the hull (1); the protective box (2) is fitted on the outside of the connecting curved plate (14); an airbag (21) is provided on the inner side of the protective box (2); a compression plate (22) is slidably connected to the inner side of the protective box (2); a connecting soft plate (23) is fixedly connected to the side wall of the compression plate (22); the connecting soft plate (23) is connected to the top of the connecting curved plate (14); a connecting pipe (24) is connected to the bottom of the airbag (21); a jet pipe (25) is connected to both sides of the bottom of the connecting pipe (24); the bottom end of the expansion slot (15) is located inside the storage slot (11); multiple sets of sealing valves (26) are fixedly connected to the inner side wall of the bottom end of the airbag (21); a connecting top pipe (27) is slidably connected to the top of the protective box (2); the connecting top pipe (27) is connected to the top of the airbag (21).
3. An electrically deployable stabilizing fin for an unmanned ship as claimed in claim 1, characterized in that: The first cleaning scraper (19) has grooves (3) on both sides; a pair of grooves (3) are fixedly connected to each other on one side wall; multiple sets of spring columns (31) are provided on the inner side wall of the groove (3); a second cleaning scraper (32) is slidably connected to the inner side of the groove (3); the spring column (31) and the second cleaning scraper (32) are connected to each other.
4. An electrically deployable stabilizing fin for an unmanned ship as claimed in claim 2, characterized in that: The protective box (2) is fixedly connected to the top of the closed sleeve column (4); the closed sleeve column (4) is sleeved on the top of the connecting top pipe (27); a filter plate (41) is fixedly connected to the top of the inner side of the closed sleeve column (4).
5. An electrically deployable stabilizing fin for an unmanned ship as claimed in claim 1, characterized in that: A support column (51) is fixedly connected to the inner side wall of the expansion groove (15) away from the rack (18); a connecting ring (5) is sleeved on the outer side of the support column (51); the connecting ring (5) is connected to the tooth groove (17).
6. An electrically deployable stabilizing fin for an unmanned ship as claimed in claim 3, characterized in that: The second cleaning scraper (32) has a first magnetic plate (6) fixedly connected to its side wall; the chute (3) has a second magnetic plate (61) fixedly connected to its inner side wall; the first magnetic plate (6) and the second magnetic plate (61) are both located inside a pair of spring columns (31).
7. An electrically deployable stabilizing fin for an unmanned ship as claimed in claim 2, characterized in that: The protective box (2) top sliding connection a pair of limiting rod (7); The limiting rod (7) and extrusion disc (22) top interconnect.
Citation Information
Patent Citations
Electric retractable stabilizing fin for unmanned ship and unmanned ship
CN214524276U