Vertical hinged door structure

By introducing a retractable telescopic rod and drive mechanism into the swing door structure, and using the rotation of the door handle to control the closing of the door leaf, the problem of accidentally trapping a hand when the swing door closes is solved, and safe door operation is achieved.

CN224064250UActive Publication Date: 2026-03-31SHAOXING MEILE DECORATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing swing doors are prone to closing accidentally when exposed to wind or by mistake, which poses a high risk of hands being caught.

Method used

A swing door structure was designed, which uses a telescopic rod and a drive mechanism on the door leaf. The rotation of the door handle drives the telescopic rod to extend and retract, thus limiting the closing of the door leaf and preventing hands from being pinched.

Benefits of technology

It effectively prevents hands from being pinched when the door closes accidentally, improving safety and ensuring that users must manually operate the door handle to close the door properly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vertical hinged door structure which comprises a door frame and a door leaf installed on the door frame, the door leaf is provided with a first door handle and a second door handle which can rotate synchronously, the door leaf is provided with a supporting piece, a telescopic rod is arranged in the supporting piece, and the first door handle or the second door handle rotates to drive the telescopic rod to stretch out and draw back. The telescopic rod extends out of the supporting piece to the door frame to limit closing of the door leaf. The main door frame and the door leaf can be clamped through the telescopic rod so as to limit closing of the door leaf, meanwhile, the abutting piece on the door handle drives the telescopic rod to stretch out and draw back, the telescopic rod can be retracted only when a user holds the door handle and rotates the door handle, the door leaf can be normally closed, and therefore the hands are prevented from being pinched.
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Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and more specifically, to a swing door structure. Background Technology

[0002] Hinged doors are a common door structure, typically consisting of a door frame, door panels, and hinges connecting the frame and panels. In case of wind or accidental contact, the door may close unexpectedly, posing a danger if someone tries to pull it shut. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hinged door structure that can prevent hands from being pinched when closing the door.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a swing door structure, including a door frame and a door leaf installed on the door frame, the door leaf being provided with a first door handle and a second door handle that can rotate synchronously, the door leaf being provided with a support member, and a telescopic rod being provided inside the support member, the first door handle or the second door handle rotating to drive the telescopic rod to extend and retract, the telescopic rod extending out of the support member to the door frame to restrict the door leaf from closing.

[0005] Furthermore, the door leaf is provided with a first cover extending from the support member, the first cover is connected to a second cover extending to a first door handle or a second door handle, the telescopic rod is connected to a drive block extending to the second cover, the second cover is provided with a drive member that drives the drive block to move, the first door handle or the second door handle is equipped with an abutment block, the abutment block rotates with the first door handle or the second door handle to push the drive member to move.

[0006] Furthermore, the support member, the first cover, and the second cover are interconnected. The driving member includes a first limiting part located at one end of the second cover that communicates with the first cover and a second limiting part located at one end of the second cover that faces the first door handle or the second door handle. The first limiting part and the second limiting part are connected by a connecting rod. The first limiting part pushes the driving block to move, and the abutting block pushes the second limiting part to move.

[0007] Furthermore, the driving block is provided with a first inclined surface, the first limiting part is provided with a limiting groove, the limiting groove is provided with a second inclined surface, and when the driving block is embedded in the limiting groove, the first inclined surface and the second inclined surface are in contact.

[0008] Furthermore, the second limiting part is provided with a second arc surface facing the end of the first door handle or the second door handle, and the abutting block is provided with a first arc surface. When the abutting block contacts the second limiting part, the first arc surface contacts the second arc surface.

[0009] Furthermore, the side of the abutting block is provided with a first guide surface, and the side of the second limiting part is provided with a second guide surface. The rotation of the abutting block causes the second guide surface to move along the first guide surface to push the second limiting part to move.

[0010] In summary, this utility model has the following beneficial effects:

[0011] The telescopic rod can lock the door frame and door leaf, thus restricting the closing of the door leaf. At the same time, the extension and retraction of the telescopic rod is driven by the abutment on the door handle. Only when the user holds and turns the door handle can the telescopic rod retract and the door leaf close normally, thus preventing the hand from being pinched. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the side where the top leader is located;

[0013] Figure 2 This is a structural diagram of the side where the second handle is located;

[0014] Figure 3 This is a structural diagram showing the mating relationship between the telescopic rod, the driving component, and the abutment block.

[0015] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0016] Figure 5 A structural diagram illustrating the fit between the door frame and the door leaf;

[0017] Reference numerals: door frame 100, door leaf 200, first door handle 300, second door handle 310, support ring 311, abutment block 312, first arc surface 313, first guide surface 314, support member 400, first mounting cavity 401, opening 402, telescopic rod 410, baffle 411, first spring 420, connecting rod 430, drive block 440, first inclined surface 441, first cover 500, second mounting cavity 510, second cover 600, third mounting cavity 610, drive member 620, first limiting part 621, connecting rod 622, second limiting part 623, limiting groove 630, second inclined surface 631, second spring 640, second arc surface 650, second guide surface 651. Detailed Implementation

[0018] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This embodiment discloses a swing door structure, including a door frame 100, a door leaf 200 mounted on the door frame 100 via hinges, a first door handle 300 and a second door handle 310 mounted on the door leaf 200, the first door handle 300 and the second door handle 310 being located on opposite sides of the door leaf 200 respectively, the first door handle 300 and the second door handle 310 being connected to each other, and the second door handle 310 being able to rotate synchronously when the first door handle 300 rotates.

[0020] A support member 400 is installed on the side of the door leaf 200 where the second door handle 310 is located. The support member 400 has a first mounting cavity 401 inside. An opening 402 is provided at the end of the first mounting cavity 401 facing the door frame 100. A telescopic rod 410 is installed inside the first mounting cavity 401. The telescopic rod 410 is equipped with a baffle 411. A first spring 420 is sleeved on the telescopic rod 410 and positioned between the baffle 411 and the opening 402. The first spring 420 can push the telescopic rod 410 to move in the opposite direction to the opening 402. When the telescopic rod 410 extends through the opening 402 to the door frame, it can lock into the door frame 100, thereby restricting the closing of the door leaf 200. Simultaneously, a gap is left between the door leaf 200 and the door frame 100 to prevent hand pinching.

[0021] A first cover 500 extending horizontally from the support member 400 is provided on one side of the door leaf 200 where the support member 400 is located. The first cover 500 extends above the second door handle 310 and is connected to a second cover 600 extending above the second door handle 310. The first cover 500 has a second mounting cavity 510, and the second cover has a third mounting cavity 610. The first mounting cavity 401, the second mounting cavity 510, and the third mounting cavity 610 are interconnected. The telescopic rod 410 is connected to a drive block 440 extending to the second cover 600 via a connecting rod 430. The second cover 600 is provided with a drive member 620 for moving the drive block 440. The drive member 620 includes a first limiting part 621 located at the end of the second cover 600 that communicates with the first cover 500, and a second limiting part 623 located at the end of the second cover 600 facing the second door handle 310. The first limiting part 621 and the second limiting part 623 are connected by a connecting rod 622. The first limiting part 621 pushes the drive block 440 to move, and the abutment block 312 pushes the second limiting part 623 to move. The drive block 440 is provided with a first inclined surface 441, the first limiting part 621 is provided with a limiting groove 630, the limiting groove 630 is provided with a second inclined surface 631, and when the drive block 440 is embedded in the limiting groove 630, the first inclined surface 441 and the second inclined surface 631 are in contact.

[0022] A second spring 640 is installed on the top of the second cover 600. The second door handle 310 includes a columnar portion, on which a support ring 311 is fitted. The support ring 311 is connected to an abutment block 312, which rotates with the rotation of the first door handle 300 or the second door handle 310. Under normal conditions, the second spring 640 pushes the drive member 620 to move toward the second door handle 310, causing the drive member 620 to extend out of the third mounting cavity 610, thereby causing the second limiting part 623 to abut against the second door handle 310. At this time, the limiting groove 630 is misaligned with the drive block 440, and the first limiting part 621 pushes the telescopic rod 410 to remain in the extended position. At the same time, the second door handle 310 is also in a horizontal position, the door lock pin is in the extended state, and the telescopic rod 410 can lock the door frame 100. When it is necessary to close the door, turn the first door handle 300 or the second door handle 310, so that the abutment block 312 rotates to the lower part of the second limiting part 623 and pushes the second limiting part 623 to move upward, so that the driving block 440 corresponds to the position of the limiting groove 630. Under the action of the first spring 420, the driving block 440 is embedded in the limiting groove 630, so that the telescopic rod 410 retracts into the first mounting cavity 401, allowing the door leaf 200 to close smoothly.

[0023] The second limiting part 623 has a second arc surface 650 at its end facing the second door handle 310, and the abutment block 312 has a first arc surface 313. When the abutment block 312 contacts the second limiting part 623, the first arc surface 313 contacts the second arc surface 650. The side of the abutment block 312 has a first guide surface 314, and the side of the second limiting part 623 has a second guide surface 651. The abutment block 312 rotates, causing the second guide surface 651 to move along the first guide surface 314 to push the second limiting part 623 to move, thereby pushing the driving member 620 to move.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A casement door construction, characterised in that, The door frame (100) and the door leaf (200) installed on the door frame (100), the door leaf (200) is provided with a first door handle (300) and a second door handle (310) capable of synchronous rotation, the door leaf (200) is provided with a support (400), the support (400) is provided with a telescopic rod (410) capable of telescoping, the first door handle (300) or the second door handle (310) drives the telescopic rod (410) to telescope, and the telescopic rod (410) extends out of the support (400) to the door frame (100) to limit the closing of the door leaf (200).

2. A structure for a vertical hinged door according to claim 1, characterized in that The door leaf (200) is provided with a first cover (500) extending from the support (400), the first cover (500) is connected with a second cover (600) extending to the first door handle (300) or the second door handle (310), the telescopic rod (410) is connected with a driving block (440) extending to the second cover (600), the second cover (600) is provided with a driving piece (620) driving the driving block (440) to move, and the first door handle (300) or the second door handle (310) is installed with an abutting block (312) rotating with the first door handle (300) or the second door handle (310) to push the driving piece (620) to move.

3. A structure for a vertical hinged door according to claim 2, wherein The support (400), the first cover (500) and the second cover (600) are communicated with each other, the driving piece (620) comprises a first limiting portion (621) arranged at one end of the second cover (600) communicated with the first cover (500) and a second limiting portion (623) arranged at one end of the second cover (600) facing the first door handle (300) or the second door handle (310), the first limiting portion (621) and the second limiting portion (623) are connected through a connecting rod (622), the first limiting portion (621) pushes the driving block (440) to move, and the abutting block (312) pushes the second limiting portion (623) to move.

4. A structure for a vertical hinged door according to claim 3, wherein The driving block (440) is provided with a first inclined surface (441), the first limiting portion (621) is provided with a limiting groove (630), the limiting groove (630) is provided with a second inclined surface (631), and the first inclined surface (441) and the second inclined surface (631) are fitted when the driving block (440) is embedded in the limiting groove (630).

5. A structure for a vertical hinged door according to claim 3, wherein The second limiting portion (623) is provided with a second arc surface (650) at the end facing the first door handle (300) or the second door handle (310), and the abutting block (312) is provided with a first arc surface (313), the first arc surface (313) and the second arc surface (650) are in contact when the abutting block (312) is in contact with the second limiting portion (623).

6. A structure for a side-hung door according to claim 5, wherein The side surface of the abutting block (312) is provided with a first guide surface (314), and the side surface of the second limiting part (623) is provided with a second guide surface (651), and the rotation of the abutting block (312) makes the second guide surface (651) move along the first guide surface (314) to push the second limiting part (623) to move.