The point of force and resistance of the corkscrew. Where is the fulcrum?

The force point of the bottle opener is the outermost, that is, the outer resistance point of the longest force arm, which is the force fulcrum of the machine to tighten the cap, and the position where the lower end of the screen opener is stuck on the ruler. The fulcrum is the point that touches the middle of the cap because it rotates around it. The point of resistance is the point of contact with the lower edge of the cap, and assuming there is no contact at this point, the corkscrew will move freely.

The corkscrew is a tool for opening bottles, which is divided into various forms and styles such as cutting, spiraling, and prying.

At present, the first problem to be solved in order to enjoy it is to open it, but it is the cork that closes it, unlike the cap of a beer bottle, which can be opened with teeth and the corner of the table.

Red wine is delicious, but it is not easy to uncork it. It takes skill to make wine, so some people say that making wine is an art.

Corkscrews, there are ordinary plastic corkscrews, wine knives (knife corkscrews), European corkscrews, T-shaped corkscrews, alloy corkscrews (butterfly corkscrews), vacuum corkscrews, electric corkscrews, desktop corkscrews, wall-mounted corkscrews, mini corkscrews, etc.

The corkscrew is a labor-saving lever, and its force analysis diagram is as follows.

Corkscrew lever analysis chart.

As can be seen from the figure, the force point of the corkscrew is at f1; The resistance point is at f2; The fulcrum is O. L1 is the power arm; L2 is the resistance arm.

Take beer as an example, the force point of the bottle opener is the outermost, that is, the outer resistance point of the longest force arm, that is, the force fulcrum of the machine to tighten the bottle cap, and the position where the lower end of the screen opener is stuck on the ruler.

The pressure point, resistance point and pointing point of the corkscrew are respectively.

Place the pressure of the corkscrew on where the corkscrew hand holds.

The point of resistance is where the corkscrew is obstructed at the front end of the corkscrew.

The fulcrum is where the corkscrew is supported at the mouth of the bottle.

The fulcrum is at the point of contact between the corkscrew and the upper part of the cap, and the point of resistance is at the point where the corkscrew is in contact with the bottom of the cap.

Corkscrews, there are ordinary plastic corkscrews, wine knives (knife corkscrews), European corkscrews, T-shaped corkscrews, alloy corkscrews (butterfly corkscrews), vacuum corkscrews, electric corkscrews, desktop corkscrews, wall-mounted corkscrews, mini corkscrews, etc.

The fulcrum is the position of the corkscrew and the piston, and the fulcrum is where the bottle is stuck.

The force point, resistance point, and fulcrum of the corkscrew are in **, of course, it is necessary to analyze its resistance point according to the action of the rod, and the force point and fulcrum, so that you can draw a correct conclusion, and the appearance of the corkscrew is not the same.

The corkscrew is hard point, resistance point, and fulcrum is in **? The fulcrum is at the top of his screw, and the point is just that.

The fulcrum of the corkscrew is on the rim of the bottle, and the specific operation steps for using the corkscrew to open the cork of the bottle correctly are as follows:

1. Use a sharp tool to open the wrapping paper at the mouth of the bottle.

2. Inject the spiral tip of the corkscrew into the center of the cork.

3. Rotate the corkscrew until only one section of the screw remains.

4. Firmly stick the fulcrum of the bottle opener on the mouth of the bottle.

5. Lift the wrench on the other side and you can easily open the cork of the bottle.

A little further back in the place where the bottle was opened.

The fulcrum of the corkscrew is on the mouth edge of the bottle, and the specific operation steps for using the corkscrew to open the cork of the wild bottle are as follows:

1. Use a sharp tool to open the wrapping paper at the mouth of the bottle.

2. Inject the spiral tip of the corkscrew into the center of the cork.

3. Rotate the corkscrew until only one section of the screw remains.

4. Firmly stuck the fulcrum of the bottle opener on the mouth of the bottle attacker.

5. Lift the wrench on the other side to pat the ridge and bury it, and you can easily open the cork of the bottle.

From the inscription, it can be seen that in order to open the cap, the handle of the corkscrew should be lifted upward, that is, the direction of power is towards the skin; The cap hinders the upward lifting of the corkscrew, so the direction of resistance is downward; The top of the corkscrew is in pure contact with the cap, which is used as a fulcrum, so that the combustible eggplant knows that Figure B is correct;

Therefore, choose B

The mechanism by which the corkscrew into the stopper is the axle, which is also a deformation lever.

The fulcrum is the axis in the middle.

The rotation of the hand grip is equivalent to the resistance of the power acting on the wheel and the rotation of the spiral below. The spiral is equivalent to an inclined plane to produce an upward force.

When pulling the cork, it is a labor-saving lever, the fulcrum handle rotates the shaft, and the resistance is the downward force of the corkscrew gear. Bottle opener.

<> pliers are held by hand, so the two handles are considered relatively fixed and the whole pliers are treated as a whole.

The contact point between the upper part of the tongs and the upper part of the cap is the fulcrum.

The lower part of the mouth and the point of contact with the fold of the cap are the points of resistance.

The pliers handle is a force point.

The fulcrum is at the contact between the corkscrew and the cap, and the resistance point is at the contact between the corkscrew and the cap Qingqing. Corkscrews include ordinary plastic corkscrews, wine knives (knife corkscrews), European corkscrews, T-shaped corkscrews, alloy corkscrews (butterfly corkscrews), vacuum corkscrews, electric corkscrews, desktop corkscrews, wall-mounted corkscrews, mini corkscrews, etc.

With the emergence and development of modern industry, the corkscrew has developed from the first generation to the third generation, from the initial plastic corkscrew to the emergence of various high-tech corkscrews, which has experienced decades of development. Some people say that the traditional corkscrew is a tool used by the "savage gentleman", then, with the advent of air pressure corkscrews and electric corkscrews, the "savage gentleman" has become more elegant and has become a true gentleman.