A high-efficiency combustion two-stroke engine for outboard motor

Abstract

This utility model discloses a high-efficiency combustion two-stroke engine for outboard motors, including a main body with a two-stroke engine inside. An adjustable main rod is located at the bottom of the main body, and a connecting rod is installed at the bottom of the main rod. A fixed shaft is connected to the bottom of the connecting rod, and a propeller is rotatably mounted on one side of the fixed shaft. Compared with existing technologies, the advantages of this utility model are its protective and self-cleaning capabilities. Its protective plate, along with a reciprocating pressure plate with a sandblasting and adsorption shaft, works in synergy to actively crush and grind entangled aquatic plants and fishing nets, greatly improving operational reliability. Simultaneously, the vortex baffle and arc-shaped guide plate optimize fluid dynamics, reducing water resistance and eddies, thereby improving propulsion efficiency, fuel economy, and handling sensitivity. This enhances the engine's adaptability and durability in complex waters. The propeller is broken into uniform fragments and discharged, effectively preventing foreign objects from entangled in the propeller and causing secondary blockages.

Description

Technical Field

[0001] This utility model relates to the field of outboard motor technology, and in particular to a high-efficiency combustion two-stroke engine for outboard motors. Background Technology

[0002] An outboard motor is a detachable power unit that is suspended on the stern of a boat or vessel and can propel the boat or vessel. It is also called an outboard motor, boat handling motor, or outboard engine. It mainly consists of an engine, transmission, control, suspension system, and propulsion system. Outboard motors using two-stroke engines have advantages such as simple structure, light weight, and fast acceleration. They are suitable for small boats and water sports equipment. The simple structure results in low maintenance costs, suitability for long-term low-load operation, and fuel economy. However, two-stroke outboard motors may vibrate during use, mainly because the relatively simple structure makes the center of gravity unstable, which can easily cause vibration. Incomplete combustion during operation can lead to unstable power output, resulting in vibration. In actual use, vibration can also cause the propeller assembly at the bottom to become entangled with foreign objects in the water flow. Chinese patent CN220786102U discloses an anti-entanglement component for outboard motors. By setting a positioning ring and a spiral blade, it can cut off a small amount of weeds and other debris entangled on the propeller and drive rod, thus preventing damage to the outboard motor. However, in actual use, the remaining small weeds and fibers after cutting are of varying lengths, and the longer parts may still get stuck in the gap between the spiral blade and the drive rod. If not cleaned in time, it will cause the drive rod to rotate unbalancedly, causing vibration. Utility Model Content

[0003] This invention addresses the problem of foreign matter entanglement in the propeller during operation. The technical problem this invention aims to solve is to provide a high-efficiency combustion two-stroke engine for outboard motors.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a high-efficiency combustion two-stroke engine for outboard motors, including a main body of the equipment. The main body of the equipment is equipped with a two-stage engine. An adjustable main rod is located at the bottom of the main body. A connecting rod is installed at the bottom of the main rod. A fixed shaft is connected to the bottom end of the connecting rod. A propeller is rotatably mounted on one side of the fixed shaft. A partition assembly composed of several protective plates is provided at one end of the fixed shaft. A snap-fit ​​plate is connected to the outside of the fixed shaft. All protective plates are located outside the snap-fit ​​plate. A transmission ring frame is provided outside the fixed shaft, and a push ring is movably provided on one side of the transmission ring frame. A set of reset pressure plates is provided outside each of the protective plates. The reset pressure plates abut against one side of the push ring, providing protection and self-cleaning capabilities. The protective plates work together with the reset pressure plates with abrasive adsorption shaft and reciprocating motion to actively crush and grind entangled aquatic plants and fishing nets, greatly improving operational reliability. At the same time, the vortex baffle and arc-shaped guide plate optimize fluid dynamics, reduce water resistance and eddies, thereby improving propulsion efficiency, fuel economy and handling sensitivity, and enhancing the engine's adaptability and durability in complex waters. The components are broken into uniform fragments and discharged, effectively preventing foreign objects from entangled in the propeller and causing secondary blockage.

[0005] A further preferred embodiment of this utility model is as follows: a propeller is rotatably mounted on the output end of the fixed shaft, the propeller is rotatably mounted inside the protective assembly composed of protective plates, a bent vortex baffle is installed at the bottom of the connecting rod, and the vortex baffle is mounted on the top of the protective assembly; The fixed shaft is connected to a stern rod at its bottom, and the heading is controlled by rotating the stern rod.

[0006] A further preferred embodiment of this utility model is as follows: the protective plates are arranged in a uniform array outside the card plate, the protective plates are provided with a set of through slots corresponding to the reset pressure plate, and the through slots are provided with several docking holes for connecting the adsorption shaft. The adsorption shaft is provided with an arc-shaped barb on the outside, the adsorption shaft is made of frosted material, the reset pressure plate is provided with a gap between it and the adsorption shaft, the reset pressure plate can be pushed back and forth on the upper end of the adsorption shaft with the push ring, the protective plates adopt a modular design, which not only facilitates the individual replacement of damaged parts and daily maintenance, but also allows users to adjust the cleaning mechanism according to the actual water conditions, such as the type and density of debris. The protective plate has an arc-shaped guide plate inside, which is located at the arc-shaped end of the through groove to prevent debris and other objects from being rolled up to the propeller, thus playing a blocking and protective role.

[0007] A further preferred embodiment of this utility model is as follows: a straight groove is provided on the reset pressure plate, and several compression rings are provided inside the straight groove. Limiting shafts are provided at both ends of the compression rings, and the angle of the compression rings can be adjusted. In conjunction with the compression rings and the cutting blade, controllable size division of foreign objects is achieved, which greatly reduces the risk of failure caused by secondary entanglement of debris of different lengths, and ensures the continuous and stable operation of the engine.

[0008] A further preferred embodiment of this utility model is as follows: The transmission ring frame has several reset rods on one side; an extension ring is provided outside the fixed shaft; the reset rods are engaged with one side of the extension ring; several tension rods are provided on the side of the transmission ring frame near the protective plate, with one end of each tension rod connected to a push ring; the transmission ring frame, the arc-shaped dividing plate, and the push ring form a linkage mechanism. When the engine speed changes or the steering direction causes a change in water flow resistance, it can automatically drive the push ring and the reset pressure plate to reciprocate.

[0009] A further preferred embodiment of this utility model is as follows: a set of fixing grooves is located on the outside of the transmission ring frame, and a limiting plate is installed inside the fixing grooves. An arc-shaped dividing plate is connected to one side of the limiting plate, and cutting edges are provided on both sides of the arc-shaped dividing plate. The arc-shaped dividing plate can drive the transmission ring frame to move under the impact of water flow changes. The rotating blade at the front of the arc-shaped dividing plate further enhances the front-end cutting capability, enabling the protection system to adapt to different working conditions and maintain efficient protection in complex waters.

[0010] A further preferred embodiment of this utility model is: the arc-shaped dividing plate is provided with a plurality of rotating blades inside, the direction of which can be adjusted to assist in the dividing process.

[0011] A further preferred embodiment of this utility model is that a bracket is connected to the outer wall of the main rod.

[0012] A further preferred embodiment of this utility model is: a throttle lever is provided on the outside of the main body of the equipment, and an engine kill switch is provided on the throttle lever.

[0013] Compared with the prior art, the advantages of this utility model are: 1. This utility model, through the coordinated operation of a protective component consisting of a protective plate, an adsorption shaft with an arc-shaped barb, and a reciprocating reset pressure plate, can not only effectively prevent foreign objects such as aquatic plants and fishing nets from directly wrapping around the propeller, but also actively squeeze and grind the wrapped foreign objects into uniform small segments during operation.

[0014] 2. This utility model achieves controllable size division of foreign objects entangled on the surface of the adsorption shaft through compression ring and cutting blade, which greatly reduces the risk of failure caused by secondary entanglement of debris of different lengths and ensures the continuous and stable operation of the engine.

[0015] 3. This utility model forms a linkage mechanism with the transmission ring frame, the arc-shaped dividing plate, and the push ring. When the engine speed changes or the steering causes changes in water flow resistance, it can automatically drive the push ring and the reset pressure plate to reciprocate, realizing the automatic triggering and adjustment of the cleaning function. The rotating blade at the front of the arc-shaped dividing plate further enhances the front-end cutting capability, enabling the protection system to adapt to different working conditions and maintain efficient protection in complex waters. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the connecting rod of this utility model; Figure 3 This is a schematic diagram of the structure on one side of the fixed shaft of this utility model; Figure 4 This is a schematic diagram of the transmission ring frame structure of this utility model; Figure 5 This utility model Figure 4 A magnified view of the structure at point A in the middle; Figure 6 This is a partial structural diagram of the transmission ring frame of this utility model; Figure 7 This is a schematic diagram of the exploded disassembly structure of the protective plate and the card plate of this utility model; Figure 8 This is a partial structural diagram of the reset pressure plate of this utility model.

[0018] In the diagram: 1. Main body of the equipment; 2. Connecting rod; 3. Protective plate; 4. Transmission ring frame; 11. Throttle lever; 12. Main rod; 13. Bracket; 21. Stern rod; 22. Vortex baffle; 23. Fixed shaft; 24. Propeller; 31. Reset pressure plate; 32. Arc-shaped guide plate; 33. Adsorption shaft; 34. Clamping plate; 35. Compression ring; 41. Pushing ring; 42. Limiting plate; 43. Arc-shaped dividing plate; 44. Rotating blade; 45. Reset rod. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0021] This embodiment mainly describes the title of a high-efficiency combustion two-stroke engine for outboard motors. Please refer to [link / reference]. Figures 1-8 Specifically, it is as follows: A high-efficiency combustion two-stroke engine for outboard motors, comprising a main body 1 The main body 1 is equipped with a two-stage engine. The bottom of the main body 1 is equipped with an adjustable main rod 12. A connecting rod 2 is installed at the bottom of the main rod 12. A fixed shaft 23 is connected to the bottom of the connecting rod 2. A propeller 24 is rotatably mounted on one side of the fixed shaft 23. A partition assembly composed of several protective plates 3 is provided at one end of the fixed shaft 23. A snap-fit ​​plate 34 is connected to the outside of the fixed shaft 23. All protective plates 3 are located outside the snap-fit ​​plate 34. A transmission ring frame 4 is provided on the outside of the fixed shaft 23. A push ring 41 is movably provided on one side of the transmission ring frame 4. A set of reset pressure plates 31 is provided on the outside of a single protective plate 3. The reset pressure plates 31 abut against one side of the push ring 41, providing protection and self-cleaning capabilities. The protective plate 3 works in conjunction with the abrasive adsorption shaft 33 and the reciprocating reset pressure plates 31 to actively crush and grind entangled aquatic plants and fishing nets, greatly improving operational reliability. At the same time, the vortex baffle 22 and the arc-shaped guide plate 32 optimize fluid dynamics, reduce water resistance and eddies, thereby improving propulsion efficiency, fuel economy and handling sensitivity, and enhancing the engine's adaptability and durability in complex waters. The components are broken into uniform fragments and discharged, effectively preventing foreign objects from entangled in the propeller 24 and causing secondary blockage.

[0022] A further preferred embodiment of this utility model is: Figure 2 and Figure 3 As shown, a propeller 24 is rotatably mounted on the output end of the fixed shaft 23. The propeller 24 can drive the flow. The propeller 24 is rotatably mounted inside the protective assembly composed of the protective plate 3. The protective assembly can block and guide the flow, reducing the chance of water plants, fishing nets, etc. mixed in the water flow getting tangled on the propeller 24. A bent vortex baffle 22 is installed at the bottom of the connecting rod 2 to reduce the vortex phenomenon in the fluid flow and optimize the fluid dynamics performance. The vortex baffle 22 is located at the top of the protective assembly. The bottom of the fixed shaft 23 is connected to the stern rod 21, and the direction of movement is controlled by rotating the angle of the stern rod 21.

[0023] A further preferred embodiment of this utility model is: Figure 3 and Figure 7As shown, the protective plates 3 are arranged in a uniform array outside the clamping plate 34. A set of through slots corresponding to the reset pressure plate 31 are formed on the protective plates 3, and several connecting holes for the adsorption shaft 33 are provided inside the through slots. The adsorption shaft 33 has arc-shaped barbs on its exterior. Foreign objects mixed in the water flow can be clamped onto the exterior of the adsorption shaft 33 by the arc-shaped barbs, thus blocking them and reducing the amount of debris passing through the through slots and winding around the propeller 24. The exterior of the adsorption shaft 33 is made of frosted material. A gap is provided between the reset pressure plate 31 and the adsorption shaft 33, allowing the reset pressure plate 31 to... The push ring 41 reciprocates and moves on the upper end of the adsorption shaft 33. During the operation of the equipment, as the reset plate 31 moves with the push ring 41, the reset plate 31 reciprocates and squeezes the aquatic plants, fishing nets, etc. wrapped around the outside of the adsorption shaft 33. In conjunction with the frosted surface of the adsorption shaft 33, it can grind the wrapped foreign objects into small pieces. Compared with traditional cutting, it can control the size of the wrapped objects after separation and reduce the situation where the internal mixed fragments of different lengths are wrapped around the propeller 24 and its transmission rod again along the vortex, affecting the normal operation of the equipment. The protective plate 3 is equipped with an arc-shaped guide plate 32 inside. The arc-shaped guide plate 32 is located at the arc-shaped end of the through groove to prevent debris and other objects from getting tangled up to the propeller 24. The arc-shaped guide plate 32 itself is arc-shaped, which allows the water to flow along the arc and to guide some aquatic plants and other objects backward with the water flow, reducing the situation of them getting tangled up near the propeller 24.

[0024] A further preferred embodiment of this utility model is: Figure 8 As shown, the reset pressure plate 31 has a straight groove, and several compression rings 35 are provided inside the straight groove. The compression rings 35 have limit shafts at both ends, and the angle of the compression rings 35 can be adjusted. During use, the angle of the compression rings 35 can be adjusted. When the reset pressure plate 31 moves back and forth on the adsorption shaft 33, it can squeeze the foreign objects stuck in the gap, and evenly divide the tangled fishing nets and aquatic plants into small pieces, so that they can be discharged with the water flow. The compression rings 35 can also have several hollow grooves, and cutting blades are provided inside the hollow grooves.

[0025] A further preferred embodiment of this utility model is: Figure 4 and Figure 6 As shown, the transmission ring frame 4 has several reset rods 45 on one side, and an extension ring is provided outside the fixed shaft 23. The reset rods 45 are locked on one side of the extension ring. Several tension rods are provided on the side of the transmission ring frame 4 near the protective plate 3, and one end of the tension rod is connected to the push ring 41. During the operation of the outboard motor, the steering or speed change operation can change the resistance brought by the water flow, so that the transmission ring frame 4 can move on the fixed shaft 23 in conjunction with the arc-shaped dividing plates 43 on both sides. With the help of the push ring 41, the reset pressure plate 31 on one side can be pushed to reciprocate.

[0026] A further preferred embodiment of this utility model is: Figure 6 As shown, the transmission ring frame 4 has a set of fixed grooves on its outside, and a limiting plate 42 is installed inside the fixed grooves. An arc-shaped dividing plate 43 is connected to one side of the limiting plate 42. The arc-shaped dividing plate 43 has cutting edges on both sides. The arc-shaped dividing plate 43 can drive the transmission ring frame 4 to move under the action of water flow impact and change. The arc-shaped dividing plate 43 can impact and cut off water plants and other mixed in the water flow, reducing the impact of collision on the rear protective components.

[0027] A further preferred embodiment of this utility model is: Figure 6 As shown, the arc-shaped dividing plate 43 is equipped with several rotating blades 44 inside. The direction of the rotating blades 44 can be adjusted. When foreign objects such as fishing nets are wrapped around the arc-shaped dividing plate 43, they can be cut by the rotating blades 44 inside, reducing the impact on the operation of the equipment.

[0028] A further preferred embodiment of this utility model is: Figure 1 As shown, a bracket 13 is connected to the outer wall of the main rod 12, and the bracket 13 is used for connection and limiting.

[0029] A further preferred embodiment of this utility model is: Figure 1 As shown, a throttle lever 11 is provided on the outside of the main body 1 of the equipment, and an engine kill switch is provided on the throttle lever 11.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The above provides a detailed description of a high-efficiency combustion two-stroke engine for outboard motors provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The above description of the embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-efficiency combustion two-stroke engine for outboard motors, characterized in that, Including the main body of the equipment The main body of the equipment is equipped with a two-stage engine. An adjustable main rod is located at the bottom of the main body. A connecting rod is installed at the bottom of the main rod. A fixed shaft is connected to the bottom end of the connecting rod. A propeller is rotatably mounted on one side of the fixed shaft. A partition assembly composed of several protective plates is provided at one end of the fixed shaft. A snap-fit ​​plate is connected to the outside of the fixed shaft. All protective plates are located outside the snap-fit ​​plate. A transmission ring frame is provided outside the fixed shaft, and a push ring is movably provided on one side of the transmission ring frame. A set of reset pressure plates is provided outside each of the protective plates, and the reset pressure plates abut against one side of the push ring.

2. The high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, A propeller is rotatably mounted on the output end of the fixed shaft. The propeller is rotatably mounted inside the protective assembly composed of protective plates. A bent vortex baffle is installed at the bottom of the connecting rod. The vortex baffle is located at the top of the protective assembly. The bottom of the fixed shaft is connected to a stern rod.

3. The high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, The protective plates are arranged in a uniform array outside the card plate. The protective plates have a set of through slots corresponding to the reset pressure plate, and the through slots have several docking holes for connecting the adsorption shaft. The adsorption shaft has an arc-shaped barb on the outside and the outside of the adsorption shaft is made of frosted material. There is a gap between the reset pressure plate and the adsorption shaft. The reset pressure plate can be pushed back and forth on the upper end of the adsorption shaft with the push ring. The protective plate has an arc-shaped guide plate inside, which is located at the arc-shaped end of the through groove to prevent debris from being rolled around to the propeller.

4. A high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, The reset plate has a straight groove, and several compression rings are arranged inside the straight groove. Limiting shafts are provided at both ends of the compression rings, and the angle of the compression rings can be adjusted.

5. A high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, The transmission ring frame has several reset rods on one side, an extension ring on the outside of the fixed shaft, and the reset rods are engaged on one side of the extension ring. The transmission ring frame has several tension rods on the side near the protective plate, and one end of the tension rods is connected to the push ring.

6. A high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, The transmission ring frame has a set of fixed grooves on its outside, and a limiting plate is installed inside the fixed grooves. An arc-shaped dividing plate is connected to one side of the limiting plate. The arc-shaped dividing plate has cutting edges on both sides. The arc-shaped dividing plate can drive the transmission ring frame to move under the action of water flow impact and change.

7. A high-efficiency combustion two-stroke engine for outboard motors according to claim 6, characterized in that, The arc-shaped dividing plate is equipped with several rotating blades inside, and the direction of the rotating blades can be adjusted.

8. A high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, A bracket is connected to the outer wall of the main rod.

9. A high-efficiency combustion two-stroke engine for outboard motors according to claim 1, characterized in that, The main body of the equipment is equipped with a throttle lever, and the throttle lever is equipped with an engine kill switch.

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