Multi-leaf extremely-narrow sliding door

By designing screws and limiting discs, and combining magnetic strips, nickel strips, and dovetail-shaped slide structures, the problem of space occupation when opening multiple ultra-narrow sliding doors is solved, achieving the effect of fully utilizing the door frame space and enhancing stability and visibility.

CN224064205UActive Publication Date: 2026-03-31LANZHOU MINGDI ALUMINUM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Many existing ultra-narrow sliding doors still occupy door frame space when fully opened, limiting their use scenarios.

Method used

Design a multi-panel ultra-narrow sliding door that allows the frame to rotate more than 90 degrees when fully open through the cooperation of screws and limiting discs. Utilize the internal space of the door frame and improve stability with magnetic strips and nickel strips. The slide rails and sliders have a dovetail structure to prevent detachment, and tempered glass enhances strength.

Benefits of technology

It enables full utilization of the door frame space when needed, avoids usage restrictions, improves stability and visibility, and facilitates cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sliding doors, in particular to a multi-leaf extremely-narrow sliding door which comprises a door frame, a first extremely-narrow frame is arranged in the door frame, a second extremely-narrow frame is arranged on the rear side of the first extremely-narrow frame, and a third extremely-narrow frame is arranged on the rear side of the second extremely-narrow frame. Two hinges distributed up and down are installed between the front end of the first extremely narrow frame and the front end of the door frame, a threaded hole is formed in the front end of the door frame, a threaded rod is in threaded connection with the interior of the threaded hole, and a limiting disc is fixedly connected to the front end of the threaded rod. The limiting disc is rotated, the screw is separated from the interior of the threaded hole, then limitation on the first ultra-narrow frame is relieved, then the third ultra-narrow frame, the second ultra-narrow frame and the first ultra-narrow frame are pulled to rotate forwards till the third ultra-narrow frame, the second ultra-narrow frame and the first ultra-narrow frame are rotated to the position larger than 90 degrees, and at the moment, the space in the door frame is in a vacant state. The purpose that the space of the door frame can be completely utilized when needed, and therefore use is prevented from being limited is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a sliding door technical field, concretely is a kind of multi-slat extremely narrow type sliding door. BACKGROUND

[0002] Sliding door, as a kind of door design widely used in modern home and commercial space, with its unique opening mode and elegant space utilization, wins the favour of numerous users, and multi-slat extremely narrow type sliding door is a popular door selection, its feature lies in that frame design is extremely narrow, can save space and provide open view, generally multi-slat extremely narrow type sliding door is installed in indoor.

[0003] In prior art, although multi-slat extremely narrow type sliding door can save space when opening, still occupies the space of one side of door frame when completely opening, cannot completely open sliding door, and use is limited in some situations, such as the situation that large piece of goods (such as furniture, sports equipment etc.) needs to be carried in and out of indoor, or needs to create an open, transparent environment etc., thus it is necessary to propose a kind of multi-slat extremely narrow type sliding door to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of multi-slat extremely narrow type sliding door, with the characteristics that the space of door frame can be completely utilized when needed, thereby avoiding use limitation.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multi-slat extremely narrow type sliding door, including door frame, the inside of the door frame is provided with first extremely narrow frame, the rear side of the first extremely narrow frame is provided with second extremely narrow frame, the rear side of the second extremely narrow frame is provided with third extremely narrow frame, two upper and lower distribution hinges are installed between the front end of the first extremely narrow frame and the front end of door frame, the front end of the door frame is provided with screw hole, the inside screw thread of the screw hole is connected with screw rod, the front end of the screw rod is fixedly connected with limit disc, the limit disc is jointly abutted on the front end of the first extremely narrow frame and door frame;

[0006] The upper and lower sides of the rear end of the first extremely narrow frame and the second extremely narrow frame are provided with sliding slot, the inside of four sliding slots is slidably connected with sliding block, two sliding blocks on the right side are fixedly connected with the second extremely narrow frame, two sliding blocks on the left side are fixedly connected with the third extremely narrow frame, the inside of the first extremely narrow frame, the second extremely narrow frame and the third extremely narrow frame is installed with toughened glass.

[0007] In order to facilitate the protection of the left end of the third extremely narrow frame, as a kind of multi-slat extremely narrow type sliding door of the utility model is preferred, the left end of the third extremely narrow frame is installed with protective pad.

[0008] In order to improve the third extremely narrow frame in the closing state of the stability when not being pushed and pulled, as a kind of multi-fan extremely narrow type sliding door of the utility model, the inner wall and the outer wall of the door frame are provided with a cavity, a plurality of magnetic strips are arranged in the cavity, a plurality of nickel strips are embedded and installed at the left end of the third extremely narrow frame, and the positions of the plurality of magnetic strips and the plurality of nickel strips correspond to each other.

[0009] In order to improve the anti-skid effect when the rotation limiting disc is rotated, as a kind of multi-fan extremely narrow type sliding door of the utility model, the outer wall of the limiting disc is provided with anti-skid lines.

[0010] In order to prevent the sliding block from being separated from the inside of the sliding groove, as a kind of multi-fan extremely narrow type sliding door of the utility model, the sliding groove and the sliding block are matched with each other in a dovetail type structure.

[0011] In order to improve the convenience of ground cleaning, as a kind of multi-fan extremely narrow type sliding door of the utility model, the lower side of the door frame is of an open structure.

[0012] In order to facilitate the pushing and pulling of the third extremely narrow frame, as a kind of multi-fan extremely narrow type sliding door of the utility model, a handle is installed at the front end of the third extremely narrow frame.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] When it is necessary to completely utilize the space inside the door frame, the limiting disc is rotated, the screw rod is separated from the inside of the threaded hole, and then the restriction on the first extremely narrow frame is released, the third extremely narrow frame, the second extremely narrow frame and the first extremely narrow frame are pulled forward and rotated, until they are rotated to a position greater than ninety degrees, at this time, the space inside the door frame is in an idle state, the space of the door frame can be completely utilized when necessary, and the purpose of avoiding use restriction is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall front view structure of the utility model;

[0016] Fig. 2 It is the overall front view of the utility model;

[0017] Fig. 3 It is the local connection structure diagram of the utility model;

[0018] Fig. 4 It is the external structure diagram of the screw rod and the limiting disc of the utility model.

[0019] In the figure: 1, door frame; 2, first extremely narrow frame; 3, second extremely narrow frame; 4, third extremely narrow frame; 5, hinge; 6, threaded hole; 7, screw rod; 8, limiting disc; 9, sliding groove; 10, sliding block; 11, tempered glass; 12, protective pad; 13, cavity; 14, magnetic stripe; 15, nickel strip. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0021] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0022] Please refer to Figs. 1 to 4 A multi-pole narrow type sliding door, comprising a door frame 1, a first extremely narrow frame 2 is arranged in the door frame 1, a second extremely narrow frame 3 is arranged at the rear side of the first extremely narrow frame 2, a third extremely narrow frame 4 is arranged at the rear side of the second extremely narrow frame 3, two upper and lower hinges 5 are installed between the front end of the first extremely narrow frame 2 and the front end of the door frame 1, a threaded hole 6 is formed in the front end of the door frame 1, a screw rod 7 is threadedly connected in the threaded hole 6, a limiting disc 8 is fixedly connected to the front end of the screw rod 7, and the limiting disc 8 abuts against the front end of the first extremely narrow frame 2 and the door frame 1.

[0023] Sliding grooves 9 are formed on the upper and lower sides of the rear ends of the first extremely narrow frame 2 and the second extremely narrow frame 3, sliding blocks 10 are slidably connected in the four sliding grooves 9, the two sliding blocks 10 on the right side are fixedly connected with the second extremely narrow frame 3, the two sliding blocks 10 on the left side are fixedly connected with the third extremely narrow frame 4, and tempered glasses 11 are installed in the first extremely narrow frame 2, the second extremely narrow frame 3 and the third extremely narrow frame 4.

[0024] In the embodiment, the fourth sliding groove 9 and the sliding block 10 are arranged, so that the third narrow frame 4 can be moved rightward or leftward, the second narrow frame 3 can be moved rightward or leftward, the first narrow frame 2 and the second narrow frame 3 can be opened or closed, the field of view can be ensured to be clear, the mechanical strength, the impact resistance and the bending strength of the tempered glass 11 are good, and the tempered glass is more reliable in use.

[0025] When it is required to completely utilize the space inside the door frame 1, the limiting disc 8 is rotated to drive the screw rod 7 to rotate until the screw rod 7 is separated from the inside of the threaded hole 6, the limitation on the first narrow frame 2 is released, and the third narrow frame 4 is pulled to rotate forward, so as to drive the second narrow frame 3 and the first narrow frame 2 to rotate forward along the two hinges 5 until the first narrow frame 2, the second narrow frame 3 and the third narrow frame 4 are rotated to a position greater than ninety degrees, at this time, the space inside the door frame 1 is in an idle state, and the space of the door frame 1 can be completely utilized when required, so that the use is not limited.

[0026] When the use is completed, the first narrow frame 2, the second narrow frame 3 and the third narrow frame 4 are reversely rotated to the initial position, at this time, the right end of the first narrow frame 2 abuts against the right end of the inner wall of the door frame 1, the screw rod 7 is screwed into the inside of the threaded hole 6 through the limiting disc 8 until the limiting disc 8 abuts against the front end of the first narrow frame 2 and the door frame 1 tightly, so as to limit the positions of the first narrow frame 2, the second narrow frame 3 and the third narrow frame 4.

[0027] As a technical optimization scheme of the utility model, the left end of the third narrow frame 4 is provided with a protective pad 12.

[0028] In the embodiment, the protective pad 12 is arranged to protect the left end of the third narrow frame 4.

[0029] As a technical optimization scheme of the utility model, a cavity 13 is arranged between the inner wall and the outer wall of the door frame 1, a plurality of magnetic strips 14 are arranged in the cavity 13, a plurality of nickel strips 15 are embedded and arranged at the left end of the third narrow frame 4, and the positions of the plurality of magnetic strips 14 and the plurality of nickel strips 15 correspond to each other.

[0030] In the embodiment, when the protective pad 12 contacts the left side of the inner wall of the door frame 1, the plurality of magnetic strips 14 can provide appropriate adsorption force to the plurality of nickel strips 15, so as to improve the stability of the third narrow frame 4 in the closed state when the third narrow frame 4 is not pushed or pulled.

[0031] As a technical optimization scheme of the utility model, the outer wall of the limiting disc 8 is provided with anti-skid lines.

[0032] In the embodiment: through setting anti-skid lines, further improve the anti-skid effect when rotating the limiting disc 8.

[0033] As a technical optimization scheme of the utility model, the sliding groove 9 and the sliding block 10 are dovetail type structures matched with each other.

[0034] In the embodiment: the sliding groove 9 and the sliding block 10 are set as dovetail type structures matched with each other, thereby preventing the sliding block 10 from separating from the inside of the sliding groove 9.

[0035] As a technical optimization scheme of the utility model, the lower side of the door frame 1 is an open structure.

[0036] In the embodiment: the lower side of the door frame 1 is an open structure, thereby improving the convenience of ground cleaning when the first extremely narrow frame 2, the second extremely narrow frame 3 and the third extremely narrow frame 4 are completely opened.

[0037] As a technical optimization scheme of the utility model, the front end of the third extremely narrow frame 4 is provided with a handle.

[0038] In the embodiment: the handle is set to facilitate the pushing and pulling of the third extremely narrow frame 4.

[0039] Working principle: in normal use, the fourth sliding groove 9 and the sliding block 10 are set, the third extremely narrow frame 4 can be pulled right or left by the handle, the second extremely narrow frame 3 can be moved right or left, the first extremely narrow frame 2 and the second extremely narrow frame 3 can be opened or closed, the setting of the tempered glass 11 can not only ensure the clarity of the field of view, but also has good mechanical strength, impact resistance and bending strength after tempering, and is more reliable in use, when the protective pad 12 contacts the left side of the inner wall of the door frame 1, the plurality of magnetic strips 14 can provide suitable adsorption force for the plurality of nickel strips 15, thereby improving the stability of the third extremely narrow frame 4 in the closed state without being pushed and pulled;

[0040] When the space inside the door frame 1 needs to be completely utilized, the limiting disc 8 is rotated, thereby driving the screw rod 7 to rotate until the screw rod 7 separates from the inside of the threaded hole 6, and the restriction on the first extremely narrow frame 2 is removed, when the third extremely narrow frame 4 is pulled to rotate to the front side, the second extremely narrow frame 3 and the first extremely narrow frame 2 are driven to rotate forward with the two hinges 5, until the first extremely narrow frame 2, the second extremely narrow frame 3 and the third extremely narrow frame 4 are rotated to a position greater than ninety degrees, at this time, the space inside the door frame 1 is in an idle state, achieving the purpose of avoiding the restriction of use when the space of the door frame 1 needs to be completely utilized;

[0041] When the use is completed, the first, second and third narrow frames 2, 3 and 4 are reversely rotated to the initial position, at this time, the right end of the first narrow frame 2 abuts against the right end of the inner wall of the door frame 1, and then the screw rod 7 is screwed into the inside of the threaded hole 6 through the limiting disc 8 until the limiting disc 8 abuts against the front end of the first narrow frame 2 and the door frame 1 closely, thereby limiting the positions of the first, second and third narrow frames 2, 3 and 4.

[0042] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-bladed narrow sliding door comprising a door frame (1), characterized in that: The inside of the door frame (1) is provided with a first extremely narrow frame (2), the rear side of the first extremely narrow frame (2) is provided with a second extremely narrow frame (3), the rear side of the second extremely narrow frame (3) is provided with a third extremely narrow frame (4), two upper and lower distributed hinges (5) are mounted between the front end of the first extremely narrow frame (2) and the front end of the door frame (1), the front end of the door frame (1) is provided with a threaded hole (6), the threaded hole (6) is internally threadedly connected with a screw rod (7), the front end of the screw rod (7) is fixedly connected with a limiting disc (8), and the limiting disc (8) abuts against the front end of the first extremely narrow frame (2) and the door frame (1); The upper and lower sides of the rear end of the first extremely narrow frame (2) and the second extremely narrow frame (3) are provided with sliding grooves (9), four sliding grooves (9) are internally and slidably connected with sliding blocks (10), the right two sliding blocks (10) are fixedly connected with the second extremely narrow frame (3), the left two sliding blocks (10) are fixedly connected with the third extremely narrow frame (4), and the first extremely narrow frame (2), the second extremely narrow frame (3) and the third extremely narrow frame (4) are internally provided with tempered glass (11).

2. A multi-bladed narrow sliding door according to claim 1, characterized in that: The left end of the third extremely narrow frame (4) is provided with a protective pad (12).

3. A multi-faceted, narrow sliding door according to claim 1, characterized in that: The inner wall and the outer wall of the door frame (1) are provided with a cavity (13), a plurality of magnetic strips (14) are arranged in the cavity (13), a plurality of nickel strips (15) are embeddedly arranged at the left end of the third extremely narrow frame (4), and the positions of the plurality of magnetic strips (14) and the plurality of nickel strips (15) correspond to each other.

4. A multi-faceted, slim sliding door according to claim 1, characterized in that: The outer wall of the limiting disc (8) is provided with anti-skid lines.

5. A multi-faceted, narrow sliding door according to claim 1, characterized in that: The sliding groove (9) and the sliding block (10) are matched with each other in a dovetail type structure.

6. A multi-faceted, slim sliding door according to claim 1, characterized in that: The lower side of the door frame (1) is of an open structure.

7. A multi-faceted, narrow sliding door according to claim 1, characterized in that: The front end of the third extremely narrow frame (4) is provided with a handle.