What is a folding door?

(Image source: google.cn)

dop design (ID: dopdesign) original

Author丨dop design

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Doors, as an entity used to divide limited spaces, can connect and block two or more spaces. Today, the editor would like to talk with my friends about an Internet-famous item that can enhance the sense of design and enhance the style of the space – folding door!

(Image source: google.cn)

For folding doors, you may only see them occasionally stage, then, today we will talk about folding doors from the following aspects!

1. What is a folding door

2. Categories of folding doors

3. Construction technology of folding doors

What is a folding door?

(Image source: google.cn)

1. Definition of folding door

Folding door refers to a door system in which multiple door leaves are connected through guide rails and hinges (hinges) and can be folded and opened in one or two directions. The door leaf can be opened or closed by two sliding methods: the bottom rail is loaded or the top rail is suspended.

(Image source: google.cn)

2. Composition of folding door

Folding doors are mainly composed of door frames, door leaves, glass, guide rails, pulleys, hinges, handles, locks and other components.

(Picture source: YUPINMINGMENCHUANG)

3. The working principle of folding doors

Take the most common manual four-leaf double-open folding door as an example. The door leaf of each door can be composed of a side door leaf and a middle door leaf.

How it works:

The frame on one side of the side door leaf is connected to the middle door leaf by a hinge. The upper and lower ends of the door stiles on the other side of the side door leaf are respectively equipped with upper and lower rotating shafts. The rotating shafts are connected to the upper and lower rotating shaft seats of the door frames on both sides of the door opening. The side door stiles will revolve around the side stile. Rotate, and at the same time drive the middle door leaf to rotate to 90°, thereby opening and closing the door leaf.

(Image source: google.cn)

△Animation

4. Characteristics of folding doors

(Image source: google.cn)

a. Various styles, both beautiful and practical

b. Large opening range, unlimited width

c, Flexible, Save space

d, Achievable space Unobstructed open communication

e, With thermal insulation partition Superior properties such as hot and cold, wind and water resistance, fire and moisture resistance, sound insulation and noise reduction

f、If you want to achieve the same sealing and thermal insulation performance as a swing door, more cost will be required.

5. Common parameters

(Image source: google.cn)

The common dimensions of folding doors in daily applications are:

Width 1100mm~3000mm, usually the width of the door opening is more than 1 meter. A few doors in the range of 700mm~1000mm can also be applied. There is no upper limit on the width for the time being.

The height is 2000mm~6000mm, the common height is generally within 2.6 meters, usually customized according to the actual measured hole size, up to 6 meters (height limits of different manufacturers are different, please refer to the manufacturer\’s products).

(The above materials are commonly used in most products on the marketParameters, for reference only)

Folding door categories

There are various types of folding doors, which can usually be classified according to the different loading methods of the door body, the different opening directions of the door leaf, the different door material, and the different application positions.

1.Different classifications based on door load-bearing methods

According to the different load-bearing methods of the door body, it can be divided into two types: ground rail load-bearing and hanging rail load-bearing.

a. Ground rail load-bearing

The load of the door leaf mainly acts on the bottom rail, and the hanging rail is mainly used for fixing and guiding, and is basically free of stress.

(Image source: google.cn)

△Load-bearing track indication

When the door body is heavy or has performance requirements such as thermal insulation, waterproof and moisture-proof, windproof and fireproof (such as outdoor doors), and when it is necessary to rely on ground rails to divide the space or use ground rails to serve as transfer points for different floor materials , this type will be used.

(Image source: google.cn)

△Practical Application

b、Handling rail load-bearing

The door leaf load mainly acts on the top rail and is stressed through suspension, so the bottom rail can be eliminated.

(Image source: google.cn)

△Load-bearing track indication

Usually used in spaces with high spatial integrity requirements, uniform floor materials or no transition, and overall aesthetics.

(Image source: google.cn)

△Practical application

2.Classification according to the direction in which the door leaves open

According to the different opening directions of the door leaf, it can be divided into two categories: one-way opening and two-way opening.

a. One-way opening

means that the opening fan is folded in one direction

(Image source: google. cn)

△Open direction indication

(Image source: google.cn)

△Practical application

b、Two-way opening

Refers to the opening fan folding in two directions.

(Image source: google.cn)

△Open direction indication

(Image source: google.cn)

△Practical Application

3. Classification according to different door materials

According to the different materials of the door body, it can be mainly divided into four categories: wooden folding doors, metal folding doors, PVC folding doors, and \”glass + frame\” folding doors.

a、Wooden folding door

The wooden folding doors mentioned here not only include solid wood, but also include other types of wood composite panels and wood veneer panels that can be used as door panel materials. wait.

(Image source: google.cn)

△Material indication

(Image source: google.cn)

△Practical application

b、 Metal folding doors

Metal folding doors are usually made of aluminum alloy and are mostly used for narrow door openings, with smaller folding fans.

(Image source: google.cn)

△Material indication

(Image source: google.cn)

△Practical application

c、pvc folding door

PVC folding doors are usually made of PVC material and are mostly used for narrow door openings with smaller folding fans.

(Image source: google.cn)

△Material indication

(Image source: google.cn)

△Practical application

d、\”Glass + Frame\” folding door

\”Glass + frame material\” folding doors usually use the above three materials as frame materials. Glass canChoose various types of glass materials that are suitable as door panels and have corresponding functions according to needs.

So\” Glass + frame material\” folding doors can be divided into three categories: \”glass + wood frame\” folding doors, \”glass + aluminum alloy\” folding doors, and \”glass + PVC\” folding doors.

(Image source: google.cn)

△\”Glass + wooden frame \”Example of folding door

(Picture source: google.cn)

△\”Glass + aluminum alloy\” folding door example

(Image source: google.cn)

△\”glass + pvc\” folding door example

4.Different classifications based on application location

According to different application locations, it can be divided into two categories: indoor applications and outdoor applications.

a、Indoor applications

Indoor applications are relatively wide, mainly used in residential, hotel and other spaces.

(Image source: google.cn)

△Apply to bedroom

(Image source: google.cn)

△Apply to living room

(Picture source: google.cn)

△Apply to restaurants

(Image source: google.cn)

△Applied to the kitchen

(Image source: google.cn)

△Apply to bathroom

(Image source: google.cn)

△ Applied to other indoor spaces

b、Outdoor applications

Outdoor applications have more limitations than other types of doors. They are usually used in residences, hotels, office buildings, exhibition halls and other spaces, mainly to connect balconies, terraces, courtyards, etc. with indoors. Location.

(Image source: google.cn)

△Apply Balcony

(Image source: google.cn)

△Apply to terrace

(Picture source: google.cn)

△Apply to courtyard

(Image source: google.cn)

△ should be used in the entrance garden

Construction technology of folding doors

Take the most common floor-rail load-bearing aluminum alloy glass folding door as an example. The construction process is relatively simple: preliminary preparation → installation of door body frame → installation of door leaf profile frame → installation of accessories and auxiliary materials →Install door glass→Debug and self-inspection→Cleaning and finishing

1. Preparation

a. before construction You should first go to the construction site to understand whether the site conditions meet the construction requirements, such as: whether the strength of the wall at the door opening meets the requirements, whether the construction materials are in place, whether there is a construction work surface, etc.

b、Prepare and inspect required materials and equipment according to design drawings and construction plans.

(Image source: google.cn)

c. Remove debris and accumulated water on the construction surface to ensure that the working surface meets construction requirements.

2. Install the door frame

a. Measure and position. Before installing the door frame, determine the installation location. , and at the same time, it is necessary to measure whether there is a large error between the civil dimensions of the door opening and the size of the customized door frame.

(Image source: google.cn)

b. Verify that the frame is installed and embedded in the groundThe flatness of the position of the wooden bricks. If it is not flat, use pads to level it.

(Image source: ALwindoor)

c. Make the door frame, determine the front and back sides and position of each frame material according to the labels on the frame material, place it on the ground, embed the corner code in the frame material cavity, and fix it with screws. Then glue the flat bottom rail to fix it.

(Image source: ALwindoor)

(Picture source: vbmchina)

d. Stand the door frame at the corresponding door opening, level it and inspect it before fixing it.

(Image source: ALwindoor)

3.Install the door leaf profile frame

a. Insert the pulleys into the upper and lower tracks respectively into the slideway and push it to the middle of the slideway. When installing the door leaf profile frame, it needs to be fixed from the track pulley.

(Image source: ALwindoor)

b. When installing the door leaf profile frame, first fix the edgemost door leaf on one side to the edge of the door body frame, and then gradually tilt the door leaf with the hinge wheel into the door body frame.

(Image source: vbmchina)

c、After placing all the door leaf profile frames into the door body frame, fix the connecting hinges between the door leaves. And install the anti-tilt device after all door leaves are debugged.

(Image source: ALwindoor)

(Image source: ALwindoor)

4.Installation accessories and accessories

Push the folding door to the middle again. After the adjustment is completed, determine the position and start installing door locks, door handles, floor bolts, door anti-collision buckles and other accessories.

(Picture source: ALwindoor)

(Image source: ALwindoor)

(Image source: ALwindoor)

5. Install door glass

a. On the door glass During installation, spacers need to be placed between the door leaf profile frame and the glass to prevent the door leaf from deforming after it is opened and suspended.

(Image source: ALwindoor)

b. Use a glass suction handle to insert the flat glass, pad the front and back firmly to make the gap consistent, then insert the sealing strip to seal and drive in sealant, or use aluminum pressure strips to tighten cross round head screws to fix it .

(Image source: ALwindoor)

6. Debug self-test

Debug the smoothness, stability and other properties of the folding door. After confirming that the acceptance conditions and usage requirements are met, tighten the debugged components securely. And perform self-inspection of the folding door. After passing the inspection, the gap between the door frame and the wall will be processed according to the design requirements, and the wall decoration on the surface of the opening will be completed.

(Image source ：ALwindoor）

(Image source: ALwindoor)

7. Cleaning

After the entire folding door is installed, wipe the surface with a clean rag and clean it before delivery.

8. Notes

a. After the door frame is temporarily fixed, its horizontality, verticality, and diagonal length must be checked. All indicators must meet the requirements of the specification.

(Image source: ALwindoor)

b、 If it is found during the installation process that the actual product is inconsistent with the design drawings or on-site conditions and is within the error range, on-site adjustments should be made based on the actual product size to ensure the accuracy of the overall installation.

c.Before fixing the pulley, confirm the direction of the handle, left and right Pull separately, select the corresponding direction according to your habits, and then start the pulley installation.

(Image source: ALwindoor)

d, should ensure that all components The function is normal and intact before installation, and it is safe and reliable after installation.

9. Design points

a. folding doors are not allowed As a safety evacuation door

b, Usually hanging rails It is more convenient to bear weight than the floor rail, and it is easier to clean. Remember to leave 5~10mm at the bottom to avoid scratching the floor.

c. During the design process,It is often necessary to determine the fixed direction, opening direction, folding direction and door handle position of the folding door in advance.

(Picture source: vbmchina)

Folding doors have become a popular type of product in modern decoration. Designers can apply folding doors according to the entire design style and space function, so as to bring a different use experience to people through unique design matching, personalized aesthetic interest and exquisite finished product construction!

Finally, let’s use a map to summarize today’s content: