Marine anti-winding propeller

Abstract

The utility model relates to the related field of marine propellers, in particular to a marine anti-winding propeller which comprises a whole device, the whole device internally comprises an inner shaft body, a connecting assembly, a spiral blade and a cutting assembly, spline strips are arranged on the outer wall of the inner shaft body, an inner connecting hole and an outer connecting hole are formed in the front end and the rear end of the inner shaft body respectively, and the outer connecting hole is communicated with the spline strips. The connecting assembly is fixed to the outer side of the inner shaft body, the four sets of spiral blades are fixed to the outer side of the connecting assembly, four sets of inserting holes are formed in the spiral blades, the four sets of cutting assemblies are installed on the four sets of spiral blades correspondingly, and the connecting assembly comprises an outer sleeve; and the cutting assembly comprises a longitudinal blade and a transverse blade, so that the disassembly and assembly operation of the spiral blade can be realized, the inner shaft body and the spiral blade can be conveniently combined or separated, the damaged spiral blade can be conveniently replaced, and strip-shaped sundries wound on the outer side of the spiral blade can be cut, so that the strip-shaped sundries are broken and fall off.

Description

Technical Field

[0001] The utility model relates to the field of marine propellers, in particular to an anti-entanglement marine propeller. Background Art

[0002] A marine propeller is a device that converts the engine's rotational power into propulsion by rotating blades in water. It usually consists of two or more blades and a hub. The rearward side of the blade is a helical surface or a near-helical surface. The working principle of the propeller is that when the blades rotate, they interact with the water flow to generate propulsion, making the ship move forward.

[0003] The utility model patent with publication number CN 217396791 U in the prior art proposes an anti-entanglement marine propeller structure. The baffle at the front of the propeller prevents water grass and other materials from being entangled on the blades. The curved plate can cut the water grass so that the water grass falls off and does not remain on the blades. The first curved sleeve and the second curved sleeve are provided to drive the entangled material to slide and prevent it from remaining on the main shaft. The sliding structure is provided to provide a small sliding function for the blades, so that the entangled materials such as water grass are removed by the process of rotation and sliding.

[0004] However, the curved plate is designed on the side of the blade, which is greatly affected by the thickness and shape of the blade. It is inconvenient to install and disassemble, and has poor adaptability, which is not conducive to widespread use. At the same time, it does not have the ability to separate the blade and the inner shaft. If the blade or the curved plate is damaged, it is not convenient to replace and disassemble it independently. Therefore, we need to upgrade and transform it based on the existing technology to overcome the existing problems and shortcomings. Utility Model Content

[0005] The purpose of the present utility model is to provide an anti-entanglement propeller for a ship to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A marine anti-entanglement propeller is designed, comprising an overall device, which includes an inner shaft body, a connecting assembly, spiral blades and a cutting assembly. The outer wall of the inner shaft body is provided with a spline strip, and the front and rear ends of the inner shaft body are respectively provided with an inner connecting hole and an outer connecting hole. The connecting assembly is fixed to the outside of the inner shaft body. The spiral blades are provided in four groups and are fixed to the outside of the connecting assembly. Four groups of plug holes are opened on the spiral blades. The cutting assembly is provided in four groups and is respectively installed on the four groups of spiral blades.

[0008] Furthermore, the connecting assembly includes an outer sleeve, the inner wall of the outer sleeve is provided with a spline groove, the front end of the inner part of the outer sleeve is provided with a front connecting plate, the rear end of the outer side of the outer sleeve is provided with a rear connecting plate, and the front connecting plate and the rear connecting plate are respectively provided with mounting holes.

[0009] Furthermore, the cutting assembly includes a longitudinal blade and a transverse blade, a center piece is fixed between the longitudinal blade and the transverse blade, a fixing hole is opened on the center piece, and a plurality of guide grooves are provided at the outer ends of the longitudinal blade and the transverse blade.

[0010] Furthermore, the outer sleeve is sleeved on the outside of the inner shaft body, the spline groove is correspondingly plugged into the spline bar, and the front and rear mounting holes are respectively correspondingly fitted on the front ends of the inner connecting hole and the outer connecting hole.

[0011] Furthermore, a front fixing bolt is connected to the inner connecting hole and the front mounting hole, and a rear fixing bolt is connected to the outer connecting hole and the rear mounting hole.

[0012] Furthermore, the center piece is attached to the outer wall of the spiral blade, the fixing hole corresponds to the plug-in hole, bolts are passed through the fixing hole and the plug-in hole, and nuts are screwed on the outer ends of the bolts.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with an inner shaft body, a spline strip, an inner connecting hole, an outer connecting hole, an outer sleeve, a spline groove, a mounting hole, a front fixing bolt and a rear fixing bolt in the device. The inner shaft body and the outer sleeve are connected by the spline strip and the spline groove, and are fixed by the fixing bolt and the mounting hole. The spiral blade can be disassembled and assembled, and the inner shaft body and the spiral blade can be easily combined or separated, and the damaged spiral blade can be easily replaced without disassembling and replacing the inner shaft body. The operation is simple and the maintenance cost is saved.

[0015] 2. The utility model is equipped with a cutting assembly, a longitudinal blade, a transverse blade, a center piece, a fixing hole, a bolt, a nut and a guide groove in the device. The blades are installed on both sides by the combination of the bolts, nuts and the center piece. The strip-shaped debris wrapped around the outside of the spiral blade can be cut to break it and detach it from the spiral blade, thereby avoiding the spiral blade from being stuck and damaged due to the entangled objects.

[0016] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope thereby. The embodiments of the present invention include numerous variations, modifications, and equivalents within the spirit and scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 Schematic diagram of the overall structure of an anti-entanglement propeller for a ship according to the utility model;

[0019] Figure 2 This is an exploded view of the inner shaft structure of an anti-entanglement propeller for a ship according to the present utility model;

[0020] Figure 3 This is an exploded view of the connection assembly of an anti-entanglement propeller for a ship according to the utility model;

[0021] Figure 4 The present invention is an exploded view of a cutting assembly of an anti-entanglement propeller for a ship.

[0022] In the figure: 1. The device as a whole; 2. The inner shaft; 21. The spline bar; 22. The inner connecting hole; 23. The outer connecting hole; 3. The connecting assembly; 31. The outer sleeve; 32. The spline groove; 33. The front connecting plate; 34. The rear connecting plate; 35. The mounting hole; 36. The front fixing bolt; 37. The rear fixing bolt; 4. The spiral blade; 41. The plug-in hole; 5. The cutting assembly; 51. The longitudinal blade; 52. The transverse blade; 53. The center piece; 54. The fixing hole; 55. The bolt; 56. The nut; 57. The guide groove. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 As shown in Figure 4, the present embodiment provides an anti-entanglement propeller for a ship, comprising an overall device 1, which includes an inner shaft body 2, a connecting assembly 3, spiral blades 4 and a cutting assembly 5. The outer wall of the inner shaft body 2 is provided with a spline strip 21, and the front and rear ends of the inner shaft body 2 are respectively provided with an inner connecting hole 22 and an outer connecting hole 23. The connecting assembly 3 is fixed to the outside of the inner shaft body 2. The spiral blades 4 are provided in four groups and are fixed to the outside of the connecting assembly 3. Four groups of plug holes 41 are opened on the spiral blades 4. The cutting assembly 5 is provided in four groups and is respectively installed on the four groups of spiral blades 4.

[0025] Preferably, the connecting assembly 3 includes an outer sleeve 31, the inner wall of the outer sleeve 31 is provided with a spline groove 32, the front end of the inner sleeve 31 is provided with a front connecting plate 33, the rear end of the outer sleeve 31 is provided with a rear connecting plate 34, the front connecting plate 33 and the rear connecting plate 34 are respectively provided with mounting holes 35. The outer sleeve 31 is sleeved on the outer side of the inner shaft body 2, the spline groove 32 is correspondingly plugged into the spline bar 21, and the front and rear mounting holes 35 are respectively correspondingly fitted with the front ends of the inner connecting hole 22 and the outer connecting hole 23. The inner connecting hole 22 and the front mounting hole 35 are connected to the front fixing bolt 36, and the outer connecting hole 23 and the rear mounting hole 35 are connected to the rear fixing bolt 37.

[0026] The outer sleeve 31 is inserted and sleeved on the outside of the inner shaft body 2 through the cooperation of the spline strip 21 and the spline groove 32, and is fixedly connected by the front fixing bolt 36 and the rear fixing bolt 37, so that the outer sleeve 31 and the spiral blade 4 can be disassembled and assembled, which makes it easy to combine or separate the inner shaft body 2 and the spiral blade 4, and the damaged spiral blade 4 can be replaced without disassembling and replacing the inner shaft body 2. The operation is simple and convenient and saves maintenance costs.

[0027] Preferably, the cutting assembly 5 includes a longitudinal blade 51 and a transverse blade 52, a center piece 53 is fixed between the longitudinal blade 51 and the transverse blade 52, a fixing hole 54 is opened on the center piece 53, the outer ends of the longitudinal blade 51 and the transverse blade 52 are provided with a plurality of guide grooves 57, the center piece 53 is attached to the outer wall of the spiral blade 4, the fixing hole 54 corresponds to the plug hole 41, a bolt 55 passes through the fixing hole 54 and the plug hole 41, and a nut 56 is screwed to the outer end of the bolt 55;

[0028] The center piece 53 and the blade are connected to one side of the spiral blade 4 by the combination of the center piece 53 and the bolt 55, and a group of blades are connected and fixed on the other side by the nut 56. The blades can cut the strip-like debris wrapped around the outside of the spiral blade 4, causing it to break and detach from the spiral blade 4, thereby preventing the spiral blade 4 from being stuck and damaged due to the entangled objects.

[0029] The principle and process of use of the present invention are as follows: when in use, the outer sleeve 31 can be inserted and sleeved on the outside of the inner shaft body 2 through the spline strip 21 and the spline groove 32, and the front fixing bolt 36 and the rear fixing bolt 37 are respectively installed in the inner connecting hole 22 and the outer connecting hole 23, so that the outer sleeve 31 is fixedly connected to the inner shaft body 2. When disassembly is required, the reverse operation can be performed. In this way, the outer sleeve 31 and the spiral blade 4 can be disassembled and assembled, which is convenient for combining or separating the inner shaft body 2 and the spiral blade 4, and damaged spiral blades 4 can be repaired. The blades 53 and 55 are connected to one side of the spiral blade 4, and a set of blades are connected to the other side through the nut 56 so that both sets of blades are fixed on the outer wall of the spiral blade 4. During the operation of the propeller, the blades can cut the strip-like debris wrapped around the outside of the spiral blade 4, break it and detach it from the spiral blade 4, and avoid the spiral blade 4 from being stuck and damaged due to the entanglement.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

Claims

1. A marine anti-entanglement propeller, characterized by: The invention comprises an overall device (1), wherein the overall device (1) comprises an inner shaft (2), a connecting assembly (3), a spiral blade (4) and a cutting assembly (5); the outer wall of the inner shaft (2) is provided with a spline strip (21); the front and rear ends of the inner shaft (2) are respectively provided with an inner connecting hole (22) and an outer connecting hole (23); the connecting assembly (3) is fixed to the outer side of the inner shaft (2); the spiral blade (4) is provided with four groups and is fixed to the outer side of the connecting assembly (3); the spiral blade (4) is provided with four groups of plug holes (41); and the cutting assembly (5) is provided with four groups and is respectively installed on the four groups of spiral blades (4).

2. The anti-entanglement propeller for a ship according to claim 1, characterized in that: The connecting assembly (3) comprises an outer sleeve (31), the inner wall of the outer sleeve (31) is provided with a spline groove (32), the front end of the inner portion of the outer sleeve (31) is provided with a front connecting plate (33), the rear end of the outer portion of the outer sleeve (31) is provided with a rear connecting plate (34), and mounting holes (35) are respectively provided on the front connecting plate (33) and the rear connecting plate (34).

3. The anti-entanglement propeller for a ship according to claim 1, characterized in that: The cutting assembly (5) comprises a longitudinal blade (51) and a transverse blade (52), wherein a center piece (53) is fixed between the longitudinal blade (51) and the transverse blade (52), and a fixing hole (54) is provided on the center piece (53), and a plurality of guide grooves (57) are provided at the outer ends of the longitudinal blade (51) and the transverse blade (52).

4. The anti-entanglement propeller for a ship according to claim 2, characterized in that: The outer sleeve (31) is sleeved on the outside of the inner shaft (2), the spline groove (32) is correspondingly plugged into the spline bar (21), and the front and rear mounting holes (35) are respectively correspondingly fitted on the front ends of the inner connecting hole (22) and the outer connecting hole (23).

5. The anti-entanglement propeller for a ship according to claim 4, characterized in that: The inner connecting hole (22) and the front mounting hole (35) are connected with a front fixing bolt (36), and the outer connecting hole (23) and the rear mounting hole (35) are connected with a rear fixing bolt (37).

6. The anti-entanglement propeller for a ship according to claim 3, characterized in that: The center piece (53) is attached to the outer wall of the spiral blade (4), the fixing hole (54) corresponds to the plug hole (41), a bolt (55) passes through the fixing hole (54) and the plug hole (41), and a nut (56) is screwed on the outer end of the bolt (55).

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