A propeller bracket at the stern of a fishing boat

Abstract

This utility model discloses a propeller bracket for the stern of a fishing boat, comprising a stern mounting base plate, a support frame, a damping folding mechanism, a mechanical blocking mechanism, and a gravity locking mechanism. The damping folding mechanism enables smooth lifting and resetting of the propeller, the mechanical blocking mechanism automatically locks the lifting position, and the gravity locking mechanism uses a counterweight for automatic locking. This utility model employs a purely mechanical structure, avoiding reliance on electricity, improving reliability in humid environments, and simplifying the operation process, making it simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for fishing boats, specifically to a propeller bracket for the stern of a fishing boat that enables smooth lifting, locking, and resetting of the propeller. Background Technology

[0002] As a common piece of equipment for water fishing, the ease of installation and operation of the propeller on a fishing boat directly affects the fishing experience. Existing fishing boat propeller brackets often suffer from the following problems:

[0003] Complex operation: The lifting of the thruster (such as when avoiding shallows or obstacles) and the resetting (when entering the water) require manual unlocking and locking of multiple parts, making the operation steps cumbersome and difficult for a single person to operate;

[0004] Insufficient reliability: Some supports rely on electric drive or hydraulic devices, which are prone to failure due to short circuits or hydraulic leaks in humid and watery fishing environments.

[0005] Poor locking stability: The position locking mechanism after the thruster is raised or the operation locking mechanism after entering the water are prone to loosening, posing a safety hazard.

[0006] Therefore, there is an urgent need for a simple, purely mechanically driven, easy-to-operate, and highly reliable stern propeller bracket for fishing boats. Summary of the Invention

[0007] To address the problems of cumbersome operation, low reliability in humid environments, and poor locking stability of existing propeller brackets, this utility model provides a propeller bracket for the stern of a fishing boat, which enables smooth lifting, automatic locking, and rapid reset of the propeller under pure mechanical drive, thereby improving operational convenience and environmental adaptability.

[0008] To solve the above problems, the technical solution adopted by this utility model is: a propeller bracket for the stern of a fishing boat, including a stern mounting base plate, a support frame, a damping folding mechanism, a mechanical blocking mechanism, and a gravity locking mechanism;

[0009] Among them: the stern mounting base plate is provided with bolt fixing holes and a vertical plate. The bolt fixing holes are used to fix and connect with the stern of the hull, and the vertical plate is used to cooperate with the gravity locking mechanism to achieve locking.

[0010] The support frame is symmetrically fixed on the stern mounting base plate and is provided with support frame pivot mounting holes;

[0011] The damping folding mechanism includes: a foldable arm, which is rotatably connected to the support frame via a rotating arm, the rotating arm being provided with a pivot mounting hole and being concentrically connected to the pivot mounting hole of the support frame via a pivot;

[0012] The propeller mounting base is fixed to the tail of the foldable arm and is equipped with a quick-installation guide rail, a safety positioning pin hole, and a gravity locking mechanism mounting hole.

[0013] The folding arm support leg is rotatably connected to the underside of the folding arm via a mounting base;

[0014] A mechanical blocking mechanism, fixed to the stern mounting base plate, is used to limit the sliding position of the folding arm support legs;

[0015] The gravity locking mechanism, rotatably mounted on the side of the propeller mounting base, includes a gravity latch, a counterweight, and a traction rope, and is used to lock the relative position of the folding arm and the stern mounting base.

[0016] Furthermore, the folding arm is provided with a damping spring positioning pin and a limiting boss. The damping spring positioning pin is connected to one end pin of the damping spring, and a shock-absorbing positioning pad is installed at the bottom of the limiting boss.

[0017] The other end pin of the damping spring is fixed to the damping spring positioning hole of the stern mounting base plate, and its center is concentric with the rotating shaft. The smooth rotation of the folding arm is achieved by the spring force of the damping spring.

[0018] Furthermore, the thruster mounting base also includes a thruster fixing block and a blocking pin;

[0019] The pusher fixing block is equipped with a pusher fixing block pin that slides with the quick-installation guide rail and a pusher fixing block safety pin hole that is concentric with the safety positioning pin hole, and is fixed by the safety positioning pin passing through it;

[0020] The blocking pin is fixed in the blocking pin hole to limit the rotation range of the gravity hook and loop fastener.

[0021] Furthermore, the mechanical blocking mechanism includes a sliding platform, a blocking block, a limiting slide plate, a return spring, and a return pull rope;

[0022] The sliding platform is equipped with a blocking groove and a positioning hole, and the blocking block is rotatably connected in the blocking groove through a positioning pin;

[0023] The limiting slide plate is slidably installed in the slide groove, and is provided with a sinking groove that matches the blocking groove. The limiting state of the blocking block is controlled by the sinking groove.

[0024] The reset pull rope is inserted into the mounting hole of the limiting slide plate, and the two ends of the reset spring are fixed to the sliding platform and the limiting slide plate respectively. The reset pull rope and the reset spring are used to drive the limiting slide plate to be pulled out and reset respectively.

[0025] Furthermore, the head of the blocking block protrudes from the plane of the sliding platform. When the sink groove of the limiting slide plate is not aligned with the blocking groove, the blocking block is locked by the limiting slide plate.

[0026] When aligned, the blocking block can be inserted into the blocking groove to release the restriction on the folding arm support leg.

[0027] Furthermore, in the gravity locking mechanism, the gravity buckle is provided with a counterweight mounting hole, a gravity buckle rotation hole, and a traction rope mounting hole;

[0028] The counterweight is fixed in the counterweight mounting hole so that the gravity buckle's blocking hook automatically engages with the upright plate;

[0029] The traction rope is threaded through the traction rope mounting hole to unlock the gravity buckle.

[0030] Furthermore, the folding arm support leg swings freely when the folding arm is raised, and falls into the sliding platform of the mechanical blocking mechanism when the angle between the folding arm and the stern mounting base plate is greater than 60°, thereby locking the raised position.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] Easy to operate: The propeller can be lifted, locked, and reset into the water with one hand through two sets of cables: a traction rope and a reset rope. This simplifies the process and solves the problem of cumbersome operation of traditional support systems.

[0033] Strong environmental adaptability: It adopts a pure mechanical structure design and realizes its functions through mechanical components such as damping springs and gravity buckles. It does not rely on electric or hydraulic devices, effectively avoiding the risk of circuit failure or leakage in humid environments, and significantly improving reliability.

[0034] Stable locking: The mechanical blocking mechanism achieves lifting and locking through the limiting cooperation between the blocking block and the support leg, while the gravity locking mechanism achieves water entry locking through the gravity drive of the counterweight block to automatically engage the blocking hook with the upright plate. The two locking structures ensure stability during use.

[0035] Flexible installation: The propeller mounting base is equipped with quick-installation guide rails and safety positioning pin holes, which can realize the quick installation, removal and positioning of the propeller, and is compatible with different models of propellers. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0037] Figure 2 This is a top view of the present invention.

[0038] Figure 3 This is a partial structural diagram of the damping folding mechanism of this utility model.

[0039] Figure 4 This is a schematic diagram of the mechanical blocking mechanism of this utility model.

[0040] Figure 5This is a schematic diagram of the internal structure of the mechanical blocking mechanism of this utility model.

[0041] Figure 6 This is an internal sectional view of the mechanical blocking mechanism of this utility model.

[0042] Figure 7 This is a cross-sectional view of the internal state of the mechanical blocking mechanism of this utility model when the reset rope is pulled.

[0043] Figure 8 This is a schematic diagram of the gravity locking mechanism of this utility model in the locked state.

[0044] Figure 9 This is a schematic diagram of the unlocked state of the gravity locking mechanism of this utility model.

[0045] Figure 10 This is a schematic diagram of the raised state of the damping folding mechanism of this utility model.

[0046] Figure 11 This is a schematic diagram of the folding arm support leg of this utility model locked in the mechanical blocking mechanism.

[0047] Figure 12 This is a schematic diagram showing the state of the mechanical blocking mechanism of this utility model when the reset pull rope is pulled open.

[0048] Figure 13 This is a schematic diagram of the propeller fixing block structure of this utility model.

[0049] The attached figures are labeled as follows: 1. Stern mounting base plate; 11. Bolt fixing hole; 12. Vertical plate; 13. Support frame; 14. Support frame pivot mounting hole; 15. Pivot; 16. Damping spring positioning hole; 2. Damping folding mechanism; 21. Foldable arm; 211. Rotary support arm; 212. Rotary support arm pivot mounting hole; 213. Damping spring; 214. Damping spring positioning pin; 22. Thruster mounting base; 23. Quick-installation guide rail; 24. Safety positioning pin hole; 241. Safety positioning pin; 25. Blocking pin hole; 26. Gravity locking mechanism mounting hole; 27. Thruster fixing block; 28. Thruster fixing block pin; 281. Thruster fixing block safety pin hole; 29. ​​Limiting boss; 291. Vibration damping positioning. 3. Pad; 31. Mechanical blocking mechanism; 32. Sliding platform; 33. Blocking block; 34. Limiting slide plate; 35. Return spring; 36. Return spring mounting hole; 37. Return spring mounting position; 38. Return pull rope; 39. Blocking groove; 30. Positioning hole; 31. Blocking block positioning hole; 32. Sinking groove; 33. Slide groove; 44. Gravity locking mechanism; 45. Gravity latch; 46. Counterweight mounting hole; 47. Counterweight; 48. Gravity latch rotation hole; 49. Traction rope mounting hole; 40. Traction rope; 41. Blocking pin; 42. Blocking hook; 5. Folding arm support leg; 51. Folding arm support leg mounting seat; 6. Propeller upright; 7. Propeller body; 8. Stern of the hull. Detailed Implementation

[0050] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely examples. The propeller bracket for the stern of a fishing boat involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0051] As shown in Figures 1-6, the stern mounting base plate 1 is fixed to the stern of the hull 8 through bolt fixing holes 11, and the edge of the base plate 12 is vertically mounted. The symmetrically fixed support frame 13 has support frame pivot mounting holes 14.

[0052] The foldable arm 21 of the damping folding mechanism 2 is connected to the support frame 13 via a rotating support arm 211. The rotating shaft mounting hole 212 of the rotating support arm 211 is concentric with the rotating shaft mounting hole 14 of the support frame and is rotatably connected via a rotating shaft 15, so that the foldable arm 21 can rotate around the rotating shaft 15.

[0053] The folding arm support leg 5 is rotatably connected to the folding arm support leg mounting base 51 below the folding arm 21, and the tail is fixed to the pusher mounting base 22; the pusher fixing block 27 is slidably engaged in the quick installation guide rail 23 of the pusher mounting base 22, the pusher fixing block 27 is positioned by the pin 28, and the safety positioning pin 241 passes through the safety positioning pin hole 24 and is fixed with the safety pin hole 281 of the pusher fixing block. The pusher body 7 is installed on the pusher fixing block 27 through the pusher upright 6.

[0054] The sliding platform 31 of the mechanical blocking mechanism 3 is fixed to the stern mounting base plate 1. The blocking block 32 is rotatably connected to the blocking groove 36 of the sliding platform 31 through the positioning pin. The limiting slide plate 33 is slidably installed in the slide groove 391. The two ends of the return spring 34 are respectively connected to the sliding platform 31 and the limiting slide plate 33. The return pull rope 35 passes through the mounting hole of the limiting slide plate 33.

[0055] The gravity latch 41 of the gravity locking mechanism 4 is rotatably connected to the gravity locking mechanism mounting hole 26 of the pusher mounting base 22 via a positioning pin. The counterweight 43 is fixed in the counterweight mounting hole 42. The traction rope 46 passes through the traction rope mounting hole 45. The blocking hook 48 at the front end of the gravity latch 41 can engage with the upright plate 12.

[0056] One end of the damping spring 213 is connected to the damping spring positioning hole 16 of the stern mounting base plate 1, and the other end is connected to the damping spring positioning pin 214 of the foldable arm 21. Its center is concentric with the rotating shaft 15.

[0057] Work process

[0058] Unlock and raise

[0059] When the thruster enters the water, the arresting hook 48 of the gravity latch 41 engages and locks with the upright plate 12 (Figure 8). Pulling the traction rope 46 causes the gravity latch 41 to rotate around the gravity locking mechanism mounting hole 26, disengaging the arresting hook 48 from the upright plate 12 (Figure 9).

[0060] When the traction rope 46 is pulled continuously, the gravity buckle 41 contacts the limiting boss 29, which drives the foldable arm 21 to rotate clockwise around the pivot 15. The propeller body 7 is lifted off the water surface, and the foldable arm support leg 5 swings with it (Figure 10). The damping spring 213 provides damping to ensure smooth lifting.

[0061] Lift Lock

[0062] When the angle between the folding arm 21 and the stern mounting base plate 1 is greater than 60°, the traction rope 46 is released, and the folding arm 21 falls slightly under the action of gravity. The folding arm support leg 5 slides to the sliding platform 31 and is limited by the protruding blocking block 32. Figure 11 This allows for locking of the lifting position.

[0063] Reset into water

[0064] Pulling the reset rope 35 causes the limiting slide plate 33 to slide so that the sinkhole 39 aligns with the blocking groove 36, and the blocking block 32 loses its limit and sinks into the blocking groove 36 (Figures 7 and 12). The folding arm support leg 5 loses its obstruction and drives the folding arm 21 to rotate counterclockwise.

[0065] When the folding arm 21 is parallel to the stern mounting base plate 1, the shock-absorbing positioning pad 291 of the limiting boss 29 contacts the sliding platform 31 and is limited. The gravity buckle 41 rotates under the gravity of the counterweight block 43, and the blocking hook 48 re-engages and locks with the upright plate 12 (Figure 8). When the reset pull rope 35 is released, the limiting slide plate 33 resets under the action of the reset spring 34, the blocking block 32 protrudes out of the sliding platform 31 again, and the mechanical blocking mechanism 3 returns to its initial state.

Claims

1. A propeller bracket for the stern of a fishing boat, characterized in that, include: The stern mounting base plate (1) is provided with bolt fixing holes (11) and a vertical plate (12). The support frame (13) is symmetrically fixed on the stern mounting base plate (1) and is provided with support frame pivot mounting holes (14). The damping folding mechanism (2) includes: a foldable arm (21) which is rotatably connected to the support frame (13) via a rotating arm (211), the rotating arm having a pivot mounting hole (212) and being concentrically connected to the pivot mounting hole (14) of the support frame via a pivot (15); a thruster mounting base (22) which is fixed to the tail of the foldable arm (21) and has a quick-installation guide rail (23), a safety positioning pin hole (24) and a gravity locking mechanism mounting hole (26); and a folding arm support leg (5) which is rotatably connected to the underside of the foldable arm (21) via a mounting base (51). Mechanical blocking mechanism (3), fixed on the stern mounting base plate (1), is used to limit the sliding position of the folding arm support leg (5); gravity locking mechanism (4), rotatably mounted on the side of the propeller mounting base (22), includes gravity buckle (41), counterweight (43) and traction rope (46), used to lock the relative position of the folding arm (21) and the stern mounting base plate (1).

2. The thruster bracket according to claim 1, characterized in that: The foldable arm (21) is provided with: a damping spring positioning pin (214) for connecting one end pin of the damping spring (213); a limiting boss (29) for installing a shock-absorbing positioning pad (291) at the bottom; and the other end pin of the damping spring (213) is fixed to the damping spring positioning hole (16) of the stern mounting base plate (1), and its center is concentric with the rotating shaft (15).

3. The thruster bracket according to claim 1, characterized in that: The propeller mounting base (22) further includes: a propeller fixing block (27), which is provided with a propeller fixing block pin (28) that slides with the quick installation guide rail (23) and a propeller fixing block safety pin hole (281) that is concentric with the safety positioning pin hole (24); and a blocking pin (47), which is fixed in the blocking pin hole (25) to limit the rotation range of the gravity buckle (41).

4. The thruster bracket according to claim 1, characterized in that: The mechanical blocking mechanism (3) includes: a sliding platform (31) with a blocking groove (36) and a positioning hole (37); a blocking block (32) rotatably connected to the blocking groove (36) by a positioning pin; a limiting slide plate (33) slidably installed in the sliding groove (391) and controlling the limiting state of the blocking block (32) by the sinking groove (39); a reset pull rope (35) and a reset spring (34) for driving the limiting slide plate (33) to be pulled out and reset.

5. The thruster bracket according to claim 4, characterized in that: The head of the blocking block (32) protrudes from the plane of the sliding platform (31). When the sink groove (39) of the limiting slide plate (33) is not aligned with the blocking groove (36), the blocking block (32) is locked by the limiting slide plate (33); when aligned, the blocking block (32) can be submerged in the blocking groove (36).

6. The thruster bracket according to claim 1, characterized in that: In the gravity locking mechanism (4): the gravity hook (41) is provided with a counterweight mounting hole (42), a gravity hook rotating hole (44) and a traction rope mounting hole (45); the counterweight (43) is fixed in the counterweight mounting hole (42) so that the blocking hook (48) of the gravity hook (41) automatically engages with the upright plate (12); the traction rope (46) is passed through the traction rope mounting hole (45) to unlock the gravity hook (41).

7. The thruster bracket according to claim 1, characterized in that: The folding arm support leg (5) swings freely when the folding arm (21) is raised, and falls onto the sliding platform (31) of the mechanical blocking mechanism (3) when the angle between the folding arm (21) and the stern mounting base plate (1) is greater than 60°.

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