Universal key. How to make a universal wrench from an old bike chain Universal key from a chain and pipe

Hello everyone expensive friends! Today we will make a very simple and effective adaptation, which is probably useful to people who are engaged in car repair, plumbing, carpentry work, etc. Such a thing may well come in handy in the usual homemade house.

This simple thing is a universal key that can unscrew anything. The key perfectly copes with any diameters of nuts and bolts, as well as it has an excellent coupling with any smooth surfaces, such as a tap pipe.
Compared to a universal gas key, this design has certain advantages. The gas key has only two planes of engagement, which in turn can deform the rejected part at a strong pressure. Our instrument has a "soft" girth due to contacting throughout the plane of the revealed part.
Test on a wooden log. On the left of our universal key, and right gas.

Also, this key due to the specificity of its design is endowed with the ability to work as a universal key with a "ratchet" mechanism: not letting scroll parts in the desired direction and easily move back to the opposite position.

To make such a versatile key you need only two details:

- Square metal profile 25x25 300 mm long.
- Motorcycle chain with a length of 500 mm.

Build a universal key

The assembly is incredibly simple and will take you along with the preparation of no more than 5 minutes.
All you need to do is trigger one end chain to a metal profile. Welding is better to produce on both sides of the chain.
This assembly is over. The universal key is ready to use.

Using a universal key

The second end of the chain will skip into the center of the profile and you have such a ring, which is just needed to wear on the item you want to turn away.

In this tool, the chain is taken on the break and the more the arm of the lever, the stronger will be the power of the chain girth.
The key gently gears both round items and faceted. For him, there is no special difference, whether it is a nut or tube.

Test

Key test on a round tube:

Key trial on hex nut:

The result in all cases is simply excellent. Height engagement. Nothing turns.
Also, this miracle turns greatly turns away with plastic and polypropylene tubes, without significant deformations, which is so important when working with soft plastic.

This useful key will not take a lot of space in the car in the garage or at home. But it may be necessary for you to come in handy at the most right moment.
So friends, boldly make yourself your universal key. It is reasonable to look at the video manufacturing and testing of a universal key.

Despite the sufficiently large variety, in the construction market, tools for screwing or screwing various pipe connections, specialists pay special attention to a chain key. The chain key is a bright representative of the manual plumbing tool intended for installation of pipes or fittings in hard-to-reach places. Such equipment allows you to work in conditions where the use of a standard divorce or spongy key is impossible.

Design features

The simplicity of the design of the chain key makes it very comfortable and pretty easy to use. Any model consists of a clamping mechanism and handle. The clamping mechanism includes a chain and "cheeks" attached to the bolt handle. The main element in the design of the chain key, of course, is a metallic monolithic handle. At one of the ends of its foundation, the threshold is located, serving a kind of pipe support. On the threshold there are special notches that protect against the occurrence of the scrolling of the pipes held. The next important element is the chain. During work, it worst workpiece over the entire diameter. On the base of the key, the circuit is fastened with a retainer, allowing to hold the voltage generated.

Special sponges and adjustable flexible chain provide the necessary fixation of pipes.

Due to the absence of the key in the design of any fixed elements, it is possible to carry out work in conditions of limited space.

To use the chain key will be enough if there is a distance equal to the thickness of the chain between the design items and the pipe. In operation, the chain is moving around the perimeter the desired product, and the thresholds in this case acts as a special obstacle when sliding. In turn, the lock fixing the chain in a given position does not give to weaken the initial girth of the pipe. Due to the uniform distribution on the area of \u200b\u200bproducts of the accompanying efforts, the risk of various deformations or damage is eliminated.

The principle of operation of the chain key is as follows: the chain fixed on the handle is attached to the pipe and tightens tightly, resting sponges directly into the material. Then, when applying efforts (push to the end of the handle), the key turns on the necessary direction. At the same time, the toothed ends "shy" rolling around the product, provide its maximum clamp with subsequent self-absorption. The chain in this case acts as a fixing element. It usually goes with a margin and if necessary, it can easily replace.

Working with a chain key is simply, but several simple rules should be remembered:

carefully clean the teeth from the garbage in front of and after the end of work;
it is strictly forbidden to use between the pipe and chain of any laying materials;
do not increase the keys lever with additional cuts. It can break his handle.

With caution, it is necessary to apply this tool when working with details with high processing purity parameters or with thin-walled pipes. Significant compression can lead to abrasion of surfaces or crumpled products.

The main materials in the manufacture of chain keys are aluminum and steel. The keys made on the basis of high strength steel will serve for a long time. To facilitate the structure of the key, aluminum is introduced in addition, but this is not reflected in the strength characteristics. Aluminum reduces the total weight of the key on average by 40%. Often aluminum is used in the production of handles.

Chain key specifications

The following main parameters are allocated in the work of the chain key:

the possibility of using the tool in places with difficult access;
to carry out small loads, the key is equipped with a solid wrought-made handle from alloy steel and a special sponge;
the key works with any metal pipes of various diameters;
for large loads, some chain key models have variables (double) sponges from the same alloyed steel. Such a key is considered indispensable in the event of a need for a sufficiently rigid clutch of the key with a pipe. In order to increase the volume of the accompanying effort, the extension lever can be additionally applied. Depending on the nature of the works, the chain key may be modified by placing in the design of removable sponges.

As with working with any other plumbing tool, a very important factor is the quality of the chain key itself. Many mistakenly believe that the main criterion for selecting a chain key is the permissible size of the oz. However, it is not. Choosing a tool to be based on the quality of the key, especially on its handle and "cheeks", since, as a rule, most of all loads are resting on them. Very good if the key is made of increased strength steel. In the future, this will determine its wear resistance in the work. Also, when choosing this type of equipment, it is worth paying attention to trademarks of world-famous manufacturers who have long earned confidence in many consumers.

To date, both classical and lightweight keys are made. Often, standard models are characterized by a greater mass, rather than lightweight keys.

The most famous trademarks that are in demand from buyers can be attributed to the chain keys Ridgid, Reed, Sparta and Stayer.

The most reliable keys, famous professionals around the world, are currently ridgid. This company produces more than twenty types of various keys. The world leader's products are highly durable, reliable capture for pipes of different diameters, as well as an ergonomic handle and its length.

The choice of such a tool is quite wide, so it is necessary to weigh all the minutes and advantages before you stop on any particular manufacturer.

Posted in the header "Universal Wrench" and Cool doubted. What this is the key when it comes to the most real almighty reservoir-twist, which can be made in a couple of minutes from the old and none of an unnecessary cycling chain. Having such a homemade device, you can no longer google and do not yandex something like "buy universal wrench". You have a truly almighty tool at your hands if you take a rusty chain in your hands and decide to make quite a bit effort.

So, let's go. First we will tell how this adaptation is done, and then on several examples show how it can turn the mountains.

Making a universal wrench: a minimum of words and a maximum photo

For the manufacture of this fantastically simple tool, you will need:

unnecessary bicycle chain;
wooden bar of such a thickness that allows you to freely grab his hand;
a rather long screw with a nut;
drill with a diameter corresponding to the sizes of the screw.

From the wooden bar, I refue a piece of length, slightly superior to the width of the palm.

Gently cut off the die out.

In 2-3 cm from the edge, we plan space for fastening the chain.

We select the drill with a diameter corresponding to the size of the screw.

Serve the through hole in which the screw freely enters and insert it there. Then we take the chain from which our wrench wrench will be manufactured, and we find a collapsible link in it, allowing you to break it down.

Sille remove the stopping lining, disassemble the collapsible link, and then reveal the chain.

One of the extreme links of the opened circuit is put on the screw tail.

The link is fixed using the nut, which is then purely clamp.

And here is our universal wrench to buy which we just intended, ready. Now let's see how our miracle tool works and how to use it.

How to use a universal wrench and that it can

The magnitude of the gripping of the homemade key can be chosen by throwing the chain link on the tail of the screw, which provides the desired size of the grip loop.

So the loop turned out quite large.

If for the tail of the screw to hook another link, then the loop can be smaller.

As for the possibilities, they are practically endless for our tool. For example, they can easily open a resting plug of plastic bottle.

Our key can be absolutely free to ride a completely round old man-haired old man.

The versatile wrench made in this way will allow you to twist the rusty bolt of any size.

To reveal our tool, it would seem that the bunched head of the old crane.

So, we see that an easily manufactured universal wrench is practically implicated. Like such thing? Want to raise us praise for the fact that we reminded you about the existence of a long enough famous self-catering or this tool seems unnecessary to you and you have a desire to scold us? Write about your impressions, and your opinion will be perpetuated on the Internet.

Dear visitors of the site " Labuda blog»From the presented material you will learn how to independently make a universal key from the cycling chain, bolt and three nuts with your own hands. Posted by step-by-step photos of the key assembly and so drove ..

Many of you probably faced such a problem .. When the faces on the winding nut or bolt are a bit shot down and the usual wrench simply scrolls without performing its function. It is possible to solve it with the help of a homemade chain key of a compression, which is the stronger on the handle, the stronger the chain will be clamped and thereby unscrew any even the most eaten nut or bolt.

For the manufacture of a universal key you will need a piece of cycling chain, two nuts and a bolt. Nuts come to the bolt and weld to them a segment of the chain in such a way that it turned out to be captured and welded to the other side of the nuts. Next, we throw the chain to the nut or bolt that needs to be turned away and tighten the bolt, thereby tensioning the chain, everything can be turned off)

Materials