Before Baydee talks about what windows open and tilt inwards, let me talk about an interesting little phenomenon: there is a geographical bias in our domestic understanding of windows that open and tilt inwards—there are generally more consumers in the north than in the south.

This is mainly due to the domestic climate and the short development time limit of residential and architectural doors and windows. Inward opening and internal inversion originated in Europe. As early as the 1930s, the founder of Noto in Germany invented the world's first set of inward opening and inversion hardware. This set of hardware changed the original window opening method, and miraculously realized two opening methods.

Because it meets the needs of urban building doors and windows (safer, ventilation, lower building energy consumption, etc.), after nearly a hundred years of development and improvement, it has gradually occupied half of the European door and window industry.

back home. The climate in northern my country is relatively close to that of Europe, and it is colder, so the demand for doors and windows is relatively high. The high demand has led to the rise of the north and gathered a large number of door and window enterprises. After learning from European modern doors and windows, they introduced inward opening and inward windows:

There are generally 3 seals for inward-opening and inward-facing windows, which may have one more seal than outward-opening windows, and the sealing performance is high; and the walls of northern buildings are thick, and there are often radiators on the inside of the window, so a wide window sill is made, so the inner-opening and inner-facing It has the advantage of conveniently operating the handle to open the window. Inner-opening and inner-folding in the north are gradually being promoted...

Now, with the rise of the door and window industry across the country (representative: Cantonese-style doors and windows), consumers in the south are beginning to pay attention to the pursuit of door and window performance (representative: the current system window).

Correspondingly, for example, if it is rainy in the south, consumers will consider whether there is a window type that can realize the scenario of not closing the window in rainy days (Baydee believes that the function of opening inwards and inwards in the south is the most suitable for local conditions).

01 Inward opening is a kind of window type, which realizes two opening methods with the help of hardware

Next, Baydee will take you to understand what are inward-opening and inward-winding doors and windows, as well as its advantages and disadvantages and precautions when purchasing. Let's first define opening inside and falling inside:

Like the familiar sliding windows and outward-opening windows in daily life, inward-opening and inward-facing windows are one of the window types of doors and windows.

It's not so mysterious, it's just that its two opening methods may improve the living experience of some people. It's not that complicated. The production process is almost the same as the outward-opening window except that the precision of the assembly hardware is higher. It is also not expensive. In terms of cost, the inner opening is only more expensive than the same outward opening window.

The only magical thing is the hardware system that helps it complete the operation of opening and falling: through a complete set of hardware system for opening and falling between the window sashes (angle drive, diagonal stay rod, coupling connection block, flip support block, anti-misoperation device) , lock point lock seat, etc.) to realize two opening methods of opening the sash inward and tilting inward.

With the invention of this hardware system, the functions of doors and windows have been superimposed: in the case of inversion, it is conducive to ventilation and is not afraid of general rain; The risk of falling windows (for example, there are relevant regulations in my country that stipulate that high-rise buildings are not allowed to use external windows).

02 Advantages and disadvantages of opening inside and falling inside

Before summarizing some purchasing skills for the installation of inward-opening and inward-tilting windows, let’s first understand the advantages and disadvantages of inward-opening and inward-reversing windows.

The advantages, compared with sliding windows or outward opening windows, are mainly the three points mentioned above:

Ventilation: Inward-facing is good for ventilation, not afraid of normal rain, and inward-opening can enhance ventilation; Cleaning: Inward-opening, easy to scrub; Security: Inward-facing is more anti-theft than outward-opening windows, and No risk of falling from outward opening windows;

Disadvantages, compared with sliding windows, there are still three points:

Before installation: It is necessary to consider the height of the ceiling in advance, or the layout of curtain boxes, wall lamps, cabinets, etc. that will affect the inside of the window. After installation: the curtain box next to the inward-opening and inverting window should be widened to prevent the curtain from being too close to the window and cannot be inward-inverted; during use: when the window is inward-opening, it may occupy the indoor space, and children may bump into the corner of the window; Users who are not familiar with inward opening and inversion are likely to misuse it, causing the window sash to fall off halfway (there is no risk of the window falling off, and it can be repaired by yourself)

03 Inside-out deception and shopping skills

Finally, Baydee summed up 3 "merchant digging points" about inward-opening and inverting doors and windows, which are very common and practical:

1. Merchants use "window type" to fool you. Merchants sometimes fool Xiaobai of doors and windows, and they may be quite direct and rude (there are many articles like this on the Internet, and there are also many rhetoric in offline shopping guide meetings): "Look at this kind of window, it is a window that opens inwards! Germany All of these windows have better sealing performance than other windows!"

Here, merchants simply want to equate "window type" with "door and window performance" and take the opportunity to sell at high prices. In fact, anyone who has read Baydee's article knows that the performance of doors and windows is determined by many factors. There may be one more seal for the inner opening than the ordinary outward opening window, but if the hardware is not adjusted properly during the assembly process, resulting in the sealing strip not being tightly deformed and airtight when the window is closed, what is the difference between it and the outward opening window of several hundred yuan?

Remember the inward-opening and inward-winding doors and windows summarized at the beginning of Baydee's article. It is a "special" window type with two opening methods.

2. Merchants fool you with "hardware brands". This kind of deceit often appears in some door and window merchants who compete for low prices. We all know from the above that whether the inward-opening and inward-reversing windows are good to use and whether they last long depends largely on the quality of the hardware system.

Some merchants tell you that the hardware brands used for our inward-opening and inward-facing windows are all first-tier international brands (Noto, HOPPE, Gewu, Sigiriya, etc.). On the surface, it is true that the handle is of this brand, but it is likely that only this handle has the brand, and the others have been replaced with cheap hardware.

This kind of trickery is not uncommon. Therefore, consumers should ask the merchants whether the complete set of hardware is from a certain brand. Then you might as well take a look at the obvious hardware parts of the entire inward-opening and inverting window-because basically big brands will also have obvious brand logos here.

Going a step further, merchants may also use counterfeit hardware. At this time, you can ask the merchant to provide the purchase and sales voucher according to your negotiation ability.

3. Unreliable manufacturers make inward opening and inversion sealing performance may be poor. Because of the particularity of the opening method of inward-turning doors and windows, the upper hinges of doors and windows are movable (whether they are exposed hinges or hidden hinges), so the poor-quality inward-turning windows are sealed in the area of ​​the upper hinges. The performance will not be done well, resulting in the phenomenon that the inward-opening and inward-facing windows that cost more money are not as good as the sealing performance of the outward-opening windows.

This phenomenon is common, and Baydee is here to teach you a simple identification method: after opening and inverting the window inwards and inwards several times, turn the handle to lock the window. Then press hard on the four corners of the window, especially the left and right corners on the top of the window. If shaking is found, or the four corners shake differently, it means that the inward opening and inward sealing performance is not good. This method is simple and easy to use, and I recommend everyone to learn it.

In conclusion, inward-opening and inward-facing windows are a model of dual-purpose windows. As long as they are used properly, both the south and the north can spend a small amount of money (change the standard outward-opening windows to inward-opening and inward-facing windows) to improve the living experience.