Quick dismounting mechanism for outboard engine

Abstract

The utility model relates to a quick release mechanism of an outboard engine, which is provided with a steering shaft support, a pull rod and a pull rod sleeve, a shaft sleeve is arranged between a support sleeve of the steering shaft support and the pull rod sleeve, the pull rod is arranged in the pull rod sleeve, and the upper end and the lower end of the pull rod are respectively provided with a locking nut and an expansion body. The lower end of the pull rod sleeve is an expansion port, the expansion body can be pulled into the expansion port, and the outer side of the expansion body abuts against the inner wall of the shaft sleeve. In a normal assembly state, the pull rod is fixed by the locking nut, the expansion body at the lower part of the pull rod is pulled upwards, the expansion opening at the lower part of the pull rod sleeve is expanded by the expansion body, the friction plate can abut against the inner wall surface of the shaft sleeve, and the pull rod sleeve and the bracket sleeve at the outer side of the shaft sleeve can form an adjustable friction force; the friction force not only can prevent the machine from moving up and down due to the jolting of a ship body during operation, but also can provide proper steering damping for the machine during steering.

Description

Technical Field

[0001] The utility model relates to the technical field of outboard motors, in particular to a quick-release mechanism for outboard motors. Background Art

[0002] An outboard motor is a propulsion engine installed on the outside of a ship's hull (side), usually hung on the outside of the transom, also known as an outboard motor. Small outboard motors have many applications in daily life.

[0003] For example, in some European cities with developed water systems, short-distance travel still relies on boats. Traditional internal combustion engine-driven propellers are difficult to maintain, noisy, and cause serious pollution, which has many adverse effects on people living along the river. In the past two years, some cities have begun to gradually ban the use of internal combustion engines on rivers. Many people have begun to replace them with electric outboard motors, but if high-power electric outboard motors are used, the batteries are expensive and most people cannot afford them. In addition, high-power outboard motors usually have batteries and machines separated. It is also troublesome to find a place to install the batteries on a very small boat, and charging is also inconvenient. In addition, the batteries are expensive and anti-theft is also a big problem.

[0004] Field investigations have found that in most places the rivers are narrow, the speed of navigation is very slow, and the boats are very small. If it is just for daily commuting, there is no need for such a large propulsion power. A small-power, low-speed, high-thrust electric outboard motor can fully meet the requirements. A low-power machine can integrate the battery and the machine into one, which is light and can be quickly disassembled and assembled, fully meeting most daily needs.

[0005] In the prior art, outboard motors generally adopt an integrated structure, and the joystick part and the propeller part are folded to reduce the volume so as to achieve mobility and storage. However, this folding method still retains the original weight on the one hand, and on the other hand, the volume is still large after folding, which is still very inconvenient during transportation and storage. Utility Model Content

[0006] In view of the above problems, the purpose of the utility model is to provide an outboard motor quick release mechanism. In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an outboard motor quick release mechanism, comprising a steering shaft bracket, a tie rod and a tie rod sleeve, a sleeve is provided between the bracket sleeve and the tie rod sleeve of the steering shaft bracket, the tie rod is installed in the tie rod sleeve, and a locking nut and an expansion body are respectively provided at the upper and lower ends of the tie rod, the locking nut can be clamped on the upper part of the tie rod sleeve, the lower end of the tie rod sleeve is an expansion port, the expansion body can be pulled into the expansion port, and its outer side is against the inner wall of the sleeve.

[0007] In the above technical solution, a friction sleeve is sleeved on the outer side of the expansion port, and the friction surface on the outer side of the friction sleeve abuts against the inner wall surface of the shaft sleeve.

[0008] In the above technical solution, the lower end of the shaft sleeve is an expanded hole, and the friction sleeve is arranged between the expansion port and the shaft sleeve.

[0009] In the above technical solution, the expansion opening is a plurality of discontinuous baffles arranged along the lower end opening of the pull rod sleeve.

[0010] In the above technical solution, the upper portion of the pull rod sleeve is fixedly connected to the outboard motor body.

[0011] In the above technical solution, the expansion body is in the shape of a frustum, and the upper end is a small-diameter end, and the upper part of the expansion body can be pulled into the expansion opening.

[0012] In the above technical solution, a limiting step is provided at the lower portion of the locking nut, and the limiting step can be clamped on the tube mouth of the upper portion of the pull rod sleeve.

[0013] To sum up, the technical solution of the utility model has the following beneficial effects compared with traditional technical means: the utility model is installed on the outboard motor, and in the normal assembly state, the locking nut fixes the pull rod, the expansion body at the lower part of the pull rod is pulled up, and the expansion opening at the lower part of the pull rod sleeve is opened by the expansion body, so that the friction plate can resist the inner wall surface of the sleeve, and the pull rod sleeve can form an adjustable friction force with the bracket sleeve on the outside of the sleeve, which can prevent the machine from moving up and down due to the bumps of the hull during operation, and can also provide a suitable steering damping for the machine when turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the outboard motor in the utility model;

[0016] Figure 2 It is a side view structural diagram of the outboard motor in the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged schematic diagram of

[0018] Figure 4 This is a schematic diagram of the first disassembly state of the utility model;

[0019] Figure 5 This is a schematic diagram of the second disassembly state of the utility model;

[0020] Figure 6 for Figure 5 A partial enlarged schematic diagram of

[0021] The numbers are as follows: 100, steering shaft bracket; 110, bracket sleeve; 200, tie rod; 210, locking nut; 211, limit step; 220, expansion body; 300, tie rod sleeve; 310, expansion port; 311, baffle; 400, shaft sleeve; 410, expansion hole; 500, friction sleeve; 600, outboard motor body. DETAILED DESCRIPTION

[0022] The following is an ideal embodiment of the utility model. Through the following description, relevant staff can make various changes and modifications without departing from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

[0023] The utility model is further described with reference to the following drawings:

[0024] like Figures 1 to 6 As shown, an outboard motor quick-release mechanism comprises a steering shaft bracket 100, a tie rod 200 and a tie rod sleeve 300, a sleeve 400 is provided between the bracket sleeve 110 of the steering shaft bracket 100 and the tie rod sleeve 300, the tie rod 200 is installed in the tie rod sleeve 300, and the upper and lower ends of the tie rod 200 are respectively provided with a locking nut 210 and an expansion body 220, the locking nut 210 can be clamped on the upper part of the tie rod sleeve 300, the lower end of the tie rod sleeve 300 is an expansion opening 310, the expansion body 220 can be pulled into the expansion opening 310, and its outer side is against the inner wall of the sleeve 400.

[0025] like Figure 3 , 6 As shown, a friction sleeve 500 is sleeved on the outer side of the expansion port 310 , and the friction surface on the outer side of the friction sleeve 500 abuts against the inner wall surface of the shaft sleeve 400 .

[0026] like Figure 3 As shown, the lower end of the shaft sleeve 400 is a reamer hole 410 , and the friction sleeve 500 is arranged between the expansion port 310 and the shaft sleeve 400 .

[0027] like Figure 6 As shown, the expansion opening 310 is a plurality of discontinuous baffles 311 arranged along the lower end opening of the pull rod sleeve 300 .

[0028] The upper portion of the pull rod sleeve 300 is fixedly connected to the outboard motor body 600 .

[0029] like Figure 3 As shown, the expansion body 220 is in a frustum shape, and the upper end is a small diameter end, and the upper part of the expansion body 220 can be pulled into the expansion opening 310.

[0030] A limiting step 211 is provided at the lower portion of the locking nut 210 , and the limiting step 211 can be clamped on the tube opening at the upper portion of the pull rod sleeve 300 .

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An outboard motor quick release mechanism, characterized in that: It has a steering shaft bracket, a pull rod and a pull rod sleeve, a shaft sleeve is provided between the bracket sleeve and the pull rod sleeve of the steering shaft bracket, the pull rod is installed in the pull rod sleeve, and the upper and lower ends of the pull rod are respectively provided with a locking nut and an expansion body, the locking nut can be clamped on the upper part of the pull rod sleeve, the lower end of the pull rod sleeve is an expansion opening, the expansion body can be pulled into the expansion opening, and its outer side is against the inner wall of the shaft sleeve.

2. The outboard motor quick release mechanism according to claim 1, characterized in that: A friction sleeve is sleeved on the outer side of the expansion port, and the friction surface on the outer side of the friction sleeve abuts against the inner wall surface of the shaft sleeve.

3. The outboard motor quick release mechanism according to claim 2, characterized in that: The lower end of the shaft sleeve is an expanded hole, and the friction sleeve is arranged between the expansion port and the shaft sleeve.

4. The outboard motor quick release mechanism according to claim 1, characterized in that: The expansion opening is a plurality of discontinuous baffles arranged along the lower end opening of the pull rod sleeve.

5. The outboard motor quick release mechanism according to claim 1, characterized in that: The upper part of the pull rod sleeve is fixedly connected to the outboard motor body.

6. The outboard motor quick release mechanism according to claim 1, characterized in that: The expansion body is in a frustum shape, and the upper end is a small-diameter end, and the upper part of the expansion body can be pulled into the expansion opening.

7. The outboard motor quick release mechanism according to claim 1, characterized in that: A limiting step is provided at the lower part of the locking nut, and the limiting step can be clamped on the tube mouth at the upper part of the pull rod sleeve.

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