Automatic double-folding vertical hinged door meeting strength requirement

By designing an automatic double-fold swing door, the active and passive door panels rotate in tandem, solving the problem of traditional swing doors taking up too much space. This makes it suitable for space-constrained building environments and improves safety.

CN223482527UActive Publication Date: 2025-10-28PLATFORM (SHANGHAI) INTELLIGENT SYST CO LTD
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Patent Information

Application Number
CN202422965030.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-10-28
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Traditional swing doors occupy a large space when opened, hindering the smooth use of indoor space and potentially posing a safety hazard, especially in building environments with limited space.

Method used

Design an automatic double-fold swing door by dividing the opening width area into four parts, with an active door panel and a passive door panel on each side. The active and passive door panels rotate in conjunction to form a certain angle, reducing the space occupied when the door is opened.

Benefits of technology

It effectively reduces the space occupied when the door is opened to one-quarter of the width of a traditional hinged door, making it suitable for building environments with limited space. It solves the problem of traditional hinged doors taking up too much space and improves security.

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Abstract

The utility model provides an automatic double-folding vertical hinged door meeting the strength requirement, and relates to the technical field of vertical hinged doors, the automatic double-folding vertical hinged door comprises a door frame structure and a door plate structure rotationally arranged in the door frame structure, the door plate structure comprises two connecting sleeves rotationally arranged in the door frame structure, and the sides, close to each other, of the two connecting sleeves are fixedly connected with driving door plates; the sides, close to each other, of the two driving door plates are hinged to driven door plates. The door opening width area is finely divided into four parts, the driving door plate and the driven door plate are arranged on the left side and the right side respectively, the space utilization efficiency is greatly optimized through the layout, the driven door plate and the driving door plate rotate in a linkage mode, and a certain included angle can be formed between the driven door plate and the driving door plate; the space occupied by the driven door plate and the driving door plate is only about one fourth of the width of a traditional door, so that the system is particularly suitable for the building environment with limited space.
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Description

Technical Field

[0001] This utility model relates to the field of swing door technology, and more specifically, to an automatic double-fold swing door that meets strength requirements. Background Art

[0002] In traditional door structures, swing doors are a common and practical type of door, widely used in various building sites due to their simple structure and convenient operation. However, in the design and application of swing doors, an issue that cannot be ignored is that when they are in the open state, they require a relatively wide passenger space (anteroom).

[0003] Specifically, in some space-constrained building environments, such as apartments, small residences, or certain commercial spaces, traditional swing doors occupy a significant amount of space when open. This can not only hinder the smooth use of interior space but also pose safety hazards. For example, in an emergency, insufficient door opening space may impede the rapid evacuation of people. Therefore, we have made improvements and proposed an automatic double-fold swing door that meets strength requirements. Summary of the Invention

[0004] The purpose of this utility model is to address the problem that traditional swing doors occupy a large space when opened, which may not only hinder the smooth use of indoor space but also pose safety hazards.

[0005] In order to achieve the above-mentioned objectives, this invention provides an automatic double-folding swing door that meets the strength requirements, thereby improving the aforementioned problems.

[0006] The application is as follows:

[0007] An automatic double-folding swing door that meets strength requirements includes a door frame structure and a door panel structure rotatably disposed within the door frame structure. The door panel structure includes two connecting sleeves rotatably disposed within the door frame structure. An active door panel is fixedly connected to one side of the two connecting sleeves that are close to each other, and a driven door panel is hinged to one side of the two active door panels that are close to each other.

[0008] As a preferred technical solution of this application, a plurality of first sleeves are fixedly connected to the side of the active door panel near the driven door panel, and a plurality of third connecting shafts are connected between the plurality of first sleeves. A second sleeve is sleeved on the outer surface of the third connecting shaft, and one side of the second sleeve is connected to the driven door panel.

[0009] As a preferred technical solution of this application, the door frame structure includes a door head, with door frame bodies installed on both sides of the door head, a sill installed between the bottoms of the two door frame bodies, and a second connecting shaft installed on the top of the sill, the outer surface of the second connecting shaft being connected to a connecting sleeve.

[0010] As a preferred technical solution of this application, the sill and the side of the door that are close to each other are provided with a sliding groove, and two guide rods are slidably connected in each sliding groove, and the two guide rods are respectively connected to two driven door panels.

[0011] As a preferred technical solution of this application, a limiting plate is fixed at the bottom of the active door panel, and a limiting groove is provided on the sill for the limiting plate to be inserted. The limiting groove and the limiting plate cooperate to stop the bottom of the active door panel.

[0012] As a preferred technical solution of this application, a baffle is provided at the bottom of the door head, and the baffle is used to stop the top of the active door panel and the driven door panel.

[0013] As a preferred technical solution of this application, an anti-collision pad is fixedly installed inside the baffle, and the position of the anti-collision pad corresponds to the position of the uppermost first sleeve.

[0014] As a preferred technical solution of this application, two motors are installed inside the door head, and the output shafts of the two motors are connected to a first connecting shaft. The bottom ends of the two first connecting shafts pass through the door head and are respectively connected to two connecting sleeves.

[0015] As a preferred technical solution of this application, an electromagnetic lock is installed inside the door, the electromagnetic lock is connected to a locking tongue, and the bottom end of the locking tongue passes into a sliding groove.

[0016] As a preferred technical solution of this application, two sensors are also provided at the bottom of the door head, and magnets are provided at the top of the two driven door panels, with the positions of the two magnets corresponding to the positions of the two sensors.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] This application divides the door opening width into four parts, with an active door panel and a passive door panel on each side. This layout greatly optimizes space utilization efficiency. The passive door panel and the active door panel rotate in tandem, forming a certain angle between them. This design ensures that when the door is fully open, the space occupied by the passive door panel and the active door panel is only about one-quarter of the traditional door opening width. This makes the system particularly suitable for space-constrained building environments, such as small apartments, small houses, or compact commercial spaces, effectively solving the problem of traditional doors occupying a large amount of space when opened. Attached Figure Description

[0020] Figure 1 A structural schematic diagram of an automatic double-folding swing door that meets the strength requirements provided in this application;

[0021] Figure 2 A structural schematic diagram of the main body of the automatic double-folding swing door that meets the strength requirements provided in this application;

[0022] Figure 3 A partial structural schematic diagram of the active and passive door panels of an automatic double-folding swing door that meets the strength requirements provided in this application;

[0023] Figure 4 A schematic diagram of the third connecting shaft of the automatic double-folding swing door that meets the strength requirements provided in this application;

[0024] Figure 5 Provided for this application Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 Provided for this application Figure 2 Enlarged structural diagram at point B;

[0026] Figure 7 A schematic diagram of the facade structure from below, provided for this application;

[0027] Figure 8 A schematic diagram of the internal structure of the storefront provided in this application;

[0028] Figure 9 A schematic diagram of the structure of the automatic double-fold swing door that meets the strength requirements provided in this application after it is opened;

[0029] Figure 10 This is a comparison diagram of the space occupied by the present application and existing hinged doors when they are open. The left side of the diagram shows the present application, and the right side shows an existing hinged door.

[0030] The image shows:

[0031] 1. Door frame structure; 101. Door head; 102. Door frame body; 103. Sill; 104. Limiting groove; 105. Slide groove; 106. Motor; 107. First connecting shaft; 108. Electromagnetic lock; 109. Lock tongue; 110. Sensor; 111. Anti-collision pad; 112. Second connecting shaft; 113. Baffle;

[0032] 2. Door panel structure; 201. Connecting sleeve; 202. Active door panel; 203. Driven door panel; 204. First sleeve; 205. Third connecting shaft; 206. Second sleeve; 207. Guide rod; 208. Limiting plate; 209. Magnet. DETAILED DESCRIPTION

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] As described in the background section, traditional swing doors occupy a large space when opened, which may not only hinder the smooth use of the interior space, but also pose safety hazards.

[0035] To solve this technical problem, this utility model provides an automatic double-folding swing door that meets strength requirements.

[0036] For details, please refer to Figures 1-9 Automatic double-folding swing doors that meet strength requirements specifically include:

[0037] The door frame structure 1 and the door panel structure 2 are rotatably disposed within the door frame structure 1. The door panel structure 2 includes two connecting sleeves 201 rotatably disposed within the door frame structure 1. An active door panel 202 is fixedly connected to one side of the two connecting sleeves 201 that are close to each other. A driven door panel 203 is hinged to one side of the two active door panels 202 that are close to each other.

[0038] This utility model provides an automatic double-fold swing door that meets strength requirements. By finely dividing the opening width area into four parts, and arranging an active door panel 202 and a passive door panel 203 on each side, this layout greatly optimizes space utilization efficiency. The passive door panel 203 and the active door panel 202 rotate in linkage, and the two can form a certain angle. This design makes the anteroom space occupied by the passive door panel 203 and the active door panel 202 when the door is fully open only about one-quarter of the traditional door opening width. This makes the system particularly suitable for space-constrained building environments, such as small apartments, apartments, or compact commercial spaces, effectively solving the problem of large space occupation when traditional doors are opened.

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0040] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] Example 1, please refer to Figures 1-9 An automatic double-folding swing door that meets strength requirements includes a door frame structure 1 and a door panel structure 2 rotatably disposed within the door frame structure 1. The door panel structure 2 includes two connecting sleeves 201 rotatably disposed within the door frame structure 1. An active door panel 202 is fixedly connected to one side of each connecting sleeve 201 that is close to each other, and a driven door panel 203 is hinged to one side of each active door panel 202 that is close to each other. This application optimizes space utilization efficiency by finely dividing the door opening width area into four parts, with one active door panel 202 and one driven door panel 203 configured on each of the left and right sides. The driven door panel 203 and the active door panel 202 rotate in linkage, forming a certain angle between them. This design ensures that when the door is fully open, the space occupied by the driven door panel 203 and the active door panel 202 in the vestibule is only about one-quarter of the traditional door opening width (e.g., ...). Figure 10 As shown in the figure (OP is the door opening width), this system is particularly suitable for space-constrained building environments, such as small houses, apartments, or compact commercial spaces, effectively solving the problem of traditional doors taking up a lot of space when opened.

[0043] Furthermore, such as Figures 1-4 As shown, a plurality of first sleeves 204 are fixedly connected to the side of the active door panel 202 near the driven door panel 203. A plurality of third connecting shafts 205 are connected between the plurality of first sleeves 204. A second sleeve 206 is sleeved on the outer surface of the third connecting shaft 205. One side of the second sleeve 206 is connected to the driven door panel 203. The mutual cooperation of the first sleeves 204, the third connecting shafts 205 and the second sleeves 206 realizes the hinge between the active door panel 202 and the driven door panel 203.

[0044] Example 2 further optimizes the automatic double-folding swing door that meets the strength requirements provided in Example 1. Specifically, as follows: Figure 1 , Figure 2 and Figure 5 As shown, the door frame structure 1 includes a door head 101, with door frame bodies 102 installed on both sides of the door head 101. A sill 103 is installed between the bottoms of the two door frame bodies 102, and a second connecting shaft 112 is installed on the top of the sill 103. The outer surface of the second connecting shaft 112 is connected to the connecting sleeve 201. The door frame bodies 102 and the sill 103 cooperate to support the door head 101, and the sill 103 and the second connecting shaft 112 cooperate to support the connecting sleeve 201.

[0045] Furthermore, such as Figures 4-7 As shown, the sill 103 and the door 101 are provided with sliding grooves 105 on their adjacent sides. Each sliding groove 105 has two guide rods 207 slidably connected in it. The two guide rods 207 are respectively connected to two driven door panels 203. The cooperation between the guide rods 207 and the sliding grooves 105 can limit the driven door panels 203, so that when the connecting sleeve 201 drives the active door panel 202 to rotate, the driven door panels 203 can rotate with the active door panel 202. There are a total of four guide rods 207, which are respectively installed on the top and bottom of the two driven door panels 203.

[0046] Furthermore, such as Figure 1 , Figure 5 and Figure 6 As shown, a limit plate 208 is fixed at the bottom of the active door panel 202, and a limit groove 104 is provided on the sill 103 for the limit plate 208 to be inserted. The limit groove 104 and the limit plate 208 cooperate to stop the bottom of the active door panel 202, so as to improve the impact resistance of the active door panel 202 and the driven door panel 203 after closing.

[0047] Furthermore, such as Figure 7 As shown, a baffle 113 is provided at the bottom of the door head 101. The baffle 113 is used to stop the top of the active door panel 202 and the driven door panel 203 to improve the impact resistance of the active door panel 202 and the driven door panel 203 after closing, so as to meet the 300N strength requirement and the soft and hard pendulum test requirements.

[0048] Furthermore, such as Figure 7 As shown, a crash pad 111 is fixedly installed inside the baffle 113. The position of the crash pad 111 corresponds to the position of the uppermost first sleeve 204. The crash pad 111 is used to buffer the first sleeve 204 when the door is closed.

[0049] Furthermore, such as Figure 8 As shown, two motors 106 are installed inside the door head 101. The output shafts of the two motors 106 are connected to a first connecting shaft 107. The bottom ends of the two first connecting shafts 107 pass through the door head 101 and are respectively connected to two connecting sleeves 201. The motors 106 can drive the connecting sleeves 201 to rotate through the first connecting shafts 107 to realize automatic door opening and closing.

[0050] Example 3 further optimizes the automatic double-folding swing door that meets the strength requirements provided in Example 1 or 2. Specifically, as follows: Figure 8As shown, an electromagnetic lock 108 is installed inside the door 101. The electromagnetic lock 108 is connected to a latch 109. The bottom end of the latch 109 passes through the slide groove 105. The electromagnetic lock 108 can drive the latch 109 to move up and down. After the door is closed, the latch 109 descends, and the guide rod 207 at the top is limited by the latch 109 to lock the door. When the door needs to be opened, the electromagnetic lock 108 drives the latch 109 to rise to release the limitation on the guide rod 207.

[0051] Furthermore, such as Figure 3 , Figure 7 and Figure 8 As shown, two sensors 110 are also provided at the bottom of the door 101, and magnets 209 are provided at the top of the two driven door panels 203. The positions of the two magnets 209 correspond to the positions of the two sensors 110. By sensing the magnets 209 through the sensors 110, it can be confirmed whether the door is closed in place.

[0052] The automatic double-folding swing door that meets the strength requirements provided by this utility model is used as follows:

[0053] When the door is opened, the electromagnetic lock 108 drives the bolt 109 to rise, and the motor 106 drives the connecting sleeve 201 to rotate via the first connecting shaft 107. The connecting sleeve 201 drives the active door panel 202 to rotate. At this time, the guide rod 207 moves towards the connecting sleeve 201, and the driven door panel 203 rotates with the active door panel 202, causing the driven door panel 203 and the active door panel 202 to open, i.e. Figure 9 As shown, when the door is closed, the motor 106 drives the connecting sleeve 201 to rotate through the first connecting shaft 107. The connecting sleeve 201 drives the active door panel 202 to rotate. At this time, the guide rod 207 moves towards the latch 109, and the driven door panel 203 rotates with the active door panel 202, thus closing the active door panel 202 and the driven door panel 203. The sensor 110 senses the magnet 209 to confirm whether the door is closed in place. After the door is closed in place, the electromagnetic lock 108 drives the latch 109 to descend to limit the two guide rods 207 at the top. At this time, the limiting plate 208 is inserted into the limiting groove 104.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An automatic double-folding swing door that meets strength requirements, characterized in that, It includes a door frame structure (1) and a door panel structure (2) rotatably disposed within the door frame structure (1). The door panel structure (2) includes two connecting sleeves (201) rotatably disposed within the door frame structure (1). An active door panel (202) is fixedly connected to one side of the two connecting sleeves (201) that are close to each other. A driven door panel (203) is hinged to one side of the two active door panels (202) that are close to each other.

2. An automatic double-folding swing door that meets strength requirements according to claim 1, characterized in that, The active door panel (202) is fixedly connected to a plurality of first sleeves (204) on the side near the driven door panel (203). A plurality of third connecting shafts (205) are connected between the plurality of first sleeves (204). A second sleeve (206) is sleeved on the outer surface of the third connecting shaft (205). One side of the second sleeve (206) is connected to the driven door panel (203).

3. An automatic double-folding swing door that meets strength requirements according to claim 2, characterized in that, The door frame structure (1) includes a door head (101), and door frame bodies (102) are installed on both sides of the door head (101). A sill (103) is installed between the bottoms of the two door frame bodies (102). A second connecting shaft (112) is installed on the top of the sill (103). The outer surface of the second connecting shaft (112) is connected to the connecting sleeve (201).

4. An automatic double-folding swing door that meets strength requirements according to claim 3, characterized in that, The sill (103) and the door (101) are provided with sliding grooves (105) on their adjacent sides. Each sliding groove (105) is slidably connected with two guide rods (207), and the two guide rods (207) are respectively connected to two driven door panels (203).

5. An automatic double-folding swing door that meets strength requirements according to claim 4, characterized in that, The bottom of the active door panel (202) is fixed with a limiting plate (208), and the sill (103) is provided with a limiting groove (104) for the limiting plate (208) to be inserted. The limiting groove (104) and the limiting plate (208) cooperate to stop the bottom of the active door panel (202).

6. An automatic double-folding swing door that meets strength requirements according to claim 5, characterized in that, The bottom of the door head (101) is provided with a baffle (113), which is used to stop the top of the active door panel (202) and the driven door panel (203).

7. An automatic double-folding swing door that meets strength requirements according to claim 6, characterized in that, An anti-collision pad (111) is fixedly installed inside the baffle (113), and the position of the anti-collision pad (111) corresponds to the position of the uppermost first sleeve (204).

8. An automatic double-folding swing door that meets strength requirements according to claim 7, characterized in that, Two motors (106) are installed inside the door head (101). The output shafts of the two motors (106) are connected to a first connecting shaft (107). The bottom ends of the two first connecting shafts (107) pass through the door head (101) and are respectively connected to two connecting sleeves (201).

9. An automatic double-folding swing door that meets strength requirements according to claim 8, characterized in that, An electromagnetic lock (108) is installed inside the door (101), and the electromagnetic lock (108) is connected to a latch (109). The bottom end of the latch (109) is inserted into a slide groove (105).

10. An automatic double-folding swing door that meets strength requirements according to claim 9, characterized in that, Two sensors (110) are also provided at the bottom of the door head (101), and magnets (209) are provided at the top of the two driven door panels (203). The positions of the two magnets (209) correspond to the positions of the two sensors (110).