Narrow-edge sliding door structure

By setting up a roller set and copper sheet on the lower door frame of the sliding door, the short service life problems caused by debris accumulation and roller wear of the existing sliding door are solved, and the smoothness of door leaf movement and the service life are extended.

CN222526121UActive Publication Date: 2025-02-25FOSHAN XIAOLUBAN DOORS & WINDOWS CO LTD
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Patent Information

Application Number
CN202421248108.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-02-25
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

During use, existing sliding doors are prone to blockage of the chute and severe wear of the roller due to debris accumulation, resulting in doors being stuck, and there is the limitation of short service life.

Method used

A narrow-side sliding door structure is designed, by setting a first sliding slot and a second sliding slot on the lower door frame, and a roller set is set in the slot, and a copper piece is arranged at the bottom of the lower fan frame to make the first door leaf and the first door leaf. The two door leaves are slidably connected to the lower door frame to reduce friction resistance and reduce friction loss of the rollers.

Benefits of technology

It realizes the smoothness of door leaf movement and flexibility, extends the service life of sliding doors, and avoids the problems of roller wear and door jamming.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222526121U_ABST
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Abstract

The utility model discloses a narrow side sliding door structure which comprises a door frame, a first door leaf and a second door leaf, the first door leaf and the second door leaf are movably arranged in the door frame, the door frame comprises an upper door frame and a lower door frame, and each of the first door leaf and the second door leaf comprises an upper leaf frame, glass and a lower leaf frame. The lower door frame comprises a drainage frame profile, a first lower door frame profile, a second lower door frame profile, a third lower door frame profile and a lower door frame heat insulation strip; a first sliding groove position is formed in the upper portion of the first lower door frame profile and the upper portion of the second lower door frame profile, a second sliding groove position is formed in the upper portion of the second lower door frame profile and the upper portion of the third lower door frame profile, roller sets are rotationally arranged in the first sliding groove position and the second sliding groove position respectively, and copper sheets used for abutting against the roller sets are arranged at the bottom of the lower leaf frame. The narrow-edge sliding door structure has the advantages of being small in friction resistance and high in door leaf moving smoothness, the friction loss of the rolling wheels can be reduced, and the service life is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of hardware doors and windows, and in particular to a narrow-edge sliding door structure. Background Art

[0002] Sliding doors are doors that can be pushed and pulled. They do not occupy indoor space when opened or closed. Therefore, they are widely used in buildings such as houses. They can separate or connect indoor space with outdoor space by pushing and pulling. In order to ensure movement, existing sliding doors generally have rollers installed at the bottom of the door leaf and a slide groove at the bottom of the door frame. However, debris easily accumulates inside the slide groove, causing the slide groove to be blocked and affecting movement. In addition, due to the heavy weight of the door leaf, after a period of use, the rollers are severely worn and the sliding door is stuck. There are certain limitations. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a narrow-edge sliding door structure with small friction resistance, high door leaf movement smoothness, reduced roller friction loss and extended service life.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A narrow-side sliding door structure, comprising a door frame and a first door leaf and a second door leaf movably arranged in the door frame, the door frame comprising an upper door frame and a lower door frame, the first door leaf and the second door leaf each comprising an upper leaf frame, glass and a lower leaf frame, the lower door frame comprising a drainage frame profile, the drainage frame profile being connected with a first lower door frame profile, a second lower door frame profile and a third lower door frame profile, and lower door frame heat insulation strips are respectively arranged between the first lower door frame profile and the second lower door frame profile, and between the second lower door frame profile and the third lower door frame profile;

[0006] A first sliding groove is formed on the upper part of the first lower door frame profile and the second lower door frame profile, and a second sliding groove is formed on the upper part of the second lower door frame profile and the third lower door frame profile. Roller groups are rotatably arranged in the first sliding groove and the second sliding groove respectively, and a copper sheet for abutting against the roller group is arranged at the bottom of the lower leaf frame, so that the first door leaf and the second door leaf are slidably connected to the lower door frame.

[0007] As a further improvement of the above technical solution:

[0008] In the first sliding slot, the inner wall of the first lower door frame profile and the inner wall of the second lower door frame profile are respectively provided with a first brush strip for abutting against the lower sash frame; in the second sliding slot, the inner wall of the second lower door frame profile and the inner wall of the third lower door frame profile are respectively provided with a second brush strip for abutting against the lower sash frame;

[0009] The first sliding slot and the second sliding slot are respectively provided with dust shields covering the roller group, and the dust shields are provided with slots for the upper part of the roller group to pass through, so that the upper part of the roller group abuts against the copper sheet.

[0010] The upper door frame comprises a first upper door frame profile, a second upper door frame profile and a third upper door frame profile, and upper door frame heat insulation strips are respectively arranged between the first upper door frame profile and the second upper door frame profile, and between the second upper door frame profile and the third upper door frame profile;

[0011] A third sliding groove is formed at the lower part of the first upper door frame profile and the second upper door frame profile, a fourth sliding groove is formed at the lower part of the second upper door frame profile and the third upper door frame profile, and wind shields are arranged inside the third sliding groove, inside the fourth sliding groove and between the two groups of upper sash frames.

[0012] In the third sliding groove, the inner wall of the first upper door frame profile and the inner wall of the second upper door frame profile are respectively provided with a third brush strip for abutting against the upper sash frame; in the fourth sliding groove, the inner wall of the second upper door frame profile and the inner wall of the third upper door frame profile are respectively provided with a fourth brush strip for abutting against the upper sash frame.

[0013] The door frame further comprises a first vertical door frame and a second vertical door frame, the first door leaf and the second door leaf further comprise a first vertical leaf frame and a second vertical leaf frame, the first vertical door frame and the second vertical door frame have the same structure, both comprising a first vertical door frame profile, a second vertical door frame profile and a third vertical door frame profile, and vertical door frame heat insulation strips are respectively arranged between the first vertical door frame profile and the second vertical door frame profile, and between the second vertical door frame profile and the third vertical door frame profile;

[0014] A first side groove is formed between the first vertical door frame profile and the second vertical door frame profile, a second side groove is formed between the second vertical door frame profile and the third vertical door frame profile, and a flat connector is arranged in the second side groove.

[0015] In the first side groove, the inner wall of the first vertical door frame profile and the inner wall of the second vertical door frame profile are respectively provided with a fifth brush strip.

[0016] The first vertical fan frame includes a first vertical fan frame profile and a second vertical fan frame profile, a vertical fan frame heat insulation strip is arranged between the first vertical fan frame profile and the second vertical fan frame profile, the second vertical fan frame includes a third vertical fan frame profile, the third vertical fan frame profile is provided with an extended protrusion, the extended protrusion is provided with an abutting rubber strip, and the abutting rubber strip is provided with a sixth brush strip.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The lower door frame of the narrow-edge sliding door structure of the utility model is formed with a first sliding groove and a second sliding groove. By arranging roller groups in the first sliding groove and the second sliding groove and arranging a copper sheet at the bottom of the lower leaf frame, the structural form in the prior art in which rollers are installed at the bottom of the door leaf is replaced. When the first door leaf and the second door leaf are pushed and pulled, the copper sheet is driven to move on multiple roller groups, which can not only reduce friction resistance and improve the smoothness of the movement of the door leaf, and has high flexibility in use, but also multiple roller groups will take turns to bear stress during the movement process, thereby reducing the friction loss of the rollers and effectively extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a narrow-edge sliding door.

[0020] Figure 2 for Figure 1 Schematic diagram of the cross section along the AA direction.

[0021] Figure 3 for Figure 1 Schematic diagram of the cross section along the BB direction.

[0022] Figure 4 It is a structural schematic diagram of the second vertical fan frame.

[0023] Legend:

[0024] 100, door frame; 200, first door leaf; 300, second door leaf;

[0025] 1. Upper door frame; 101. First upper door frame profile; 102. Second upper door frame profile; 103. Third upper door frame profile; 104. Upper door frame insulation strip; 2. Lower door frame; 201. Drainage frame profile; 202. First lower door frame profile; 203. Second lower door frame profile; 204. Third lower door frame profile; 205. Lower door frame insulation strip; 3. Upper sash frame; 4. Glass; 5. Lower sash frame; 6. First sliding slot; 7. Second sliding slot; 8. Roller group; 801. Dust shield; 9. Copper sheet; 10. First brush strip; 11. Second brush strip; 12. Third sliding slot; 13. Fourth sliding slot; 14. Wind shield; 15. Three brush strips; 16, fourth brush strips; 17, first vertical door frame; 1701, first vertical door frame profile; 1702, second vertical door frame profile; 1703, third vertical door frame profile; 1704, vertical door frame insulation strip; 18, second vertical door frame; 19, first side slot; 20, second side slot; 21, flat connector; 22, first vertical sash frame; 2201, first vertical sash frame profile; 2202, second vertical sash frame profile; 2203, vertical sash frame insulation strip; 23, second vertical sash frame; 2301, third vertical sash frame profile; 2302, extended convex portion; 2303, abutting rubber strip; 2304, sixth brush strip; 24, fifth brush strip. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 and Figure 2As shown, the narrow-side sliding door structure of this embodiment includes a door frame 100 and a first door leaf 200 and a second door leaf 300 movably arranged in the door frame 100. The door frame 100 includes an upper door frame 1 and a lower door frame 2. The first door leaf 200 and the second door leaf 300 both include an upper leaf frame 3, a glass 4 and a lower leaf frame 5. The lower door frame 2 includes a drainage frame profile 201. The drainage frame profile 201 is connected to a first lower door frame profile 202, a second lower door frame profile 203 and a third lower door frame profile 204. Between the first lower door frame profile 202 and the second lower door frame profile 203, A lower door frame heat insulation strip 205 is respectively arranged between the second lower door frame profile 203 and the third lower door frame profile 204; a first sliding groove 6 is formed on the upper part of the first lower door frame profile 202 and the second lower door frame profile 203, and a second sliding groove 7 is formed on the upper part of the second lower door frame profile 203 and the third lower door frame profile 204, and roller groups 8 are rotatably arranged in the first sliding groove 6 and the second sliding groove 7 respectively, and a copper sheet 9 for abutting against the roller group 8 is arranged at the bottom of the lower leaf frame 5, so that the first door leaf 200 and the second door leaf 300 are slidably connected to the lower door frame 2. The lower door frame 2 of the narrow-edge sliding door structure is formed with a first sliding groove 6 and a second sliding groove 7. By arranging a roller group 8 in the first sliding groove 6 and the second sliding groove 7 and arranging a copper sheet 9 at the bottom of the lower leaf frame 5, the structure in the prior art in which rollers are installed at the bottom of the door leaf is replaced. When the first door leaf 200 and the second door leaf 300 are pushed and pulled, the copper sheet 9 is driven to move on multiple roller groups 8, which can not only reduce friction resistance and improve the smoothness of the movement of the door leaf, but also has high flexibility in use. In addition, multiple roller groups 8 will take turns to bear stress during the movement, thereby reducing the friction loss of the rollers and effectively extending the service life.

[0028] Specifically, two rows of roller groups 8 are respectively arranged in the first sliding groove 6 and the second sliding groove 7, and two copper sheets 9 are respectively arranged at the bottom of the lower leaf frames 5 of the first door leaf 200 and the second door leaf 300, so that the first door leaf 200 and the second door leaf 300 can move more smoothly when being pushed and pulled.

[0029] Preferably, in the first sliding groove 6, the inner wall of the first lower door frame profile 202 and the inner wall of the second lower door frame profile 203 are respectively provided with a first brush strip 10 for abutting against the lower sash frame 5; in the second sliding groove 7, the inner wall of the second lower door frame profile 203 and the inner wall of the third lower door frame profile 204 are respectively provided with a second brush strip 11 for abutting against the lower sash frame 5; the first sliding groove 6 and the second sliding groove 7 are respectively provided with a dust guard plate 801 covering the roller group 8, and a slot is opened on the dust guard plate 801 for the upper part of the roller group 8 to pass through, so that the upper part of the roller group 8 abuts against the copper sheet 9. In this embodiment, by providing the first brush strip 10 and the second brush strip 11, dust, debris and other debris can be prevented from falling into the groove from the gap between the lower door frame 2 and the lower sash frame 5. At the same time, by providing the dust guard plate 801, debris can be effectively prevented from falling into the groove from above, thereby preventing the accumulation of debris inside the groove and causing the roller assembly 8 to get stuck.

[0030] In this embodiment, the upper door frame 1 includes a first upper door frame profile 101, a second upper door frame profile 102 and a third upper door frame profile 103, and upper door frame insulation strips 104 are respectively arranged between the first upper door frame profile 101 and the second upper door frame profile 102, and between the second upper door frame profile 102 and the third upper door frame profile 103; a third sliding groove 12 is formed at the lower part of the first upper door frame profile 101 and the second upper door frame profile 102, and a fourth sliding groove 13 is formed at the lower part of the second upper door frame profile 102 and the third upper door frame profile 103, and wind shields 14 are arranged inside the third sliding groove 12, inside the fourth sliding groove 13 and between the two groups of upper sash frames 3, which can prevent outdoor airflow from entering the room.

[0031] In this embodiment, in the third sliding groove 12, the inner wall of the first upper door frame profile 101 and the inner wall of the second upper door frame profile 102 are respectively provided with a third brush strip 15 for abutting against the upper sash frame 3; in the fourth sliding groove 13, the inner wall of the second upper door frame profile 102 and the inner wall of the third upper door frame profile 103 are respectively provided with a fourth brush strip 16 for abutting against the upper sash frame 3, which can prevent dust, debris and other debris from accumulating in the gap between the upper door frame 1 and the upper sash frame 3.

[0032] like Figure 3As shown, in this embodiment, the door frame 100 also includes a first vertical door frame 17 and a second vertical door frame 18, the first door leaf 200 and the second door leaf 300 also include a first vertical leaf frame 22 and a second vertical leaf frame 23, the first vertical door frame 17 and the second vertical door frame 18 have the same structure, both including a first vertical door frame profile 1701, a second vertical door frame profile 1702 and a third vertical door frame profile 1703, vertical door frame insulation strips 1704 are respectively arranged between the first vertical door frame profile 1701 and the second vertical door frame profile 1702, and between the second vertical door frame profile 1702 and the third vertical door frame profile 1703; a first side groove 19 is formed between the first vertical door frame profile 1701 and the second vertical door frame profile 1702, a second side groove 20 is formed between the second vertical door frame profile 1702 and the third vertical door frame profile 1703, and a flat-end connector 21 is arranged in the second side groove 20. Specifically, in this embodiment, the first vertical door frame 17 and the second vertical door frame 18 are centrally symmetrically arranged, the first door leaf 200 and the second door leaf 300 are also centrally symmetrically arranged, and a plurality of sets of door frame insulation strips 1704 are arranged in the first vertical door frame 17 and the second vertical door frame 18, and the door frame has good thermal insulation performance.

[0033] In this embodiment, in the first side slot 19 , the inner wall of the first vertical door frame profile 1701 and the inner wall of the second vertical door frame profile 1702 are respectively provided with a fifth brush strip 24 .

[0034] like Figure 4 As shown, in this embodiment, the first vertical fan frame 22 includes a first vertical fan frame profile 2201 and a second vertical fan frame profile 2202, a vertical fan frame heat insulation strip 2203 is arranged between the first vertical fan frame profile 2201 and the second vertical fan frame profile 2202, the second vertical fan frame 23 includes a third vertical fan frame profile 2301, the third vertical fan frame profile 2301 is provided with an extended protrusion 2302, the extended protrusion 2302 is provided with an abutting rubber strip 2303, and the abutting rubber strip 2303 is provided with a sixth brush strip 2304.

[0035] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A narrow-edge sliding door structure, comprising a door frame (100) and a first door leaf (200) and a second door leaf (300) movably arranged in the door frame (100), characterized in that: The door frame (100) comprises an upper door frame (1) and a lower door frame (2); the first door leaf (200) and the second door leaf (300) both comprise an upper leaf frame (3), glass (4) and a lower leaf frame (5); the lower door frame (2) comprises a drainage frame profile (201); a first lower door frame profile (202), a second lower door frame profile (203) and a third lower door frame profile (204) are connected to the drainage frame profile (201); lower door frame heat insulation strips (205) are respectively provided between the first lower door frame profile (202) and the second lower door frame profile (203) and between the second lower door frame profile (203) and the third lower door frame profile (204); A first sliding groove (6) is formed on the upper parts of the first lower door frame profile (202) and the second lower door frame profile (203), a second sliding groove (7) is formed on the upper parts of the second lower door frame profile (203) and the third lower door frame profile (204), a roller group (8) is rotatably arranged in the first sliding groove (6) and the second sliding groove (7), and a copper sheet (9) for abutting against the roller group (8) is arranged at the bottom of the lower sash frame (5).

2. The narrow side sliding door structure according to claim 1, characterized in that: In the first sliding slot (6), the inner wall of the first lower door frame profile (202) and the inner wall of the second lower door frame profile (203) are respectively provided with a first brush strip (10) for abutting against the lower sash frame (5); in the second sliding slot (7), the inner wall of the second lower door frame profile (203) and the inner wall of the third lower door frame profile (204) are respectively provided with a second brush strip (11) for abutting against the lower sash frame (5); The first sliding slot (6) and the second sliding slot (7) are respectively provided with dust shielding plates (801) covering the roller group (8), and the dust shielding plates (801) are provided with slots for the upper part of the roller group (8) to pass through, so that the upper part of the roller group (8) abuts against the copper sheet (9).

3. The narrow side sliding door structure according to claim 2, characterized in that: The upper door frame (1) comprises a first upper door frame profile (101), a second upper door frame profile (102) and a third upper door frame profile (103); an upper door frame heat insulation strip (104) is provided between the first upper door frame profile (101) and the second upper door frame profile (102), and between the second upper door frame profile (102) and the third upper door frame profile (103); A third sliding slot (12) is formed at the lower part of the first upper door frame profile (101) and the second upper door frame profile (102), a fourth sliding slot (13) is formed at the lower part of the second upper door frame profile (102) and the third upper door frame profile (103), and a wind shield (14) is provided inside the third sliding slot (12), inside the fourth sliding slot (13) and between the two sets of upper sash frames (3).

4. The narrow side sliding door structure according to claim 3, characterized in that: In the third sliding slot (12), the inner wall of the first upper door frame profile (101) and the inner wall of the second upper door frame profile (102) are respectively provided with a third brush strip (15) for abutting against the upper sash frame (3); in the fourth sliding slot (13), the inner wall of the second upper door frame profile (102) and the inner wall of the third upper door frame profile (103) are respectively provided with a fourth brush strip (16) for abutting against the upper sash frame (3).

5. The narrow side sliding door structure according to claim 4, characterized in that: The door frame (100) further comprises a first vertical door frame (17) and a second vertical door frame (18); the first door leaf (200) and the second door leaf (300) further comprise a first vertical leaf frame (22) and a second vertical leaf frame (23); the first vertical door frame (17) and the second vertical door frame (18) have the same structure, both comprising a first vertical door frame profile (1701), a second vertical door frame profile (1702) and a third vertical door frame profile (1703); vertical door frame heat insulation strips (1704) are respectively arranged between the first vertical door frame profile (1701) and the second vertical door frame profile (1702) and between the second vertical door frame profile (1702) and the third vertical door frame profile (1703); A first side groove (19) is formed between the first vertical door frame profile (1701) and the second vertical door frame profile (1702), a second side groove (20) is formed between the second vertical door frame profile (1702) and the third vertical door frame profile (1703), and a flat-end connecting piece (21) is arranged in the second side groove (20).

6. The narrow side sliding door structure according to claim 5, characterized in that: In the first side groove (19), the inner wall of the first vertical door frame profile (1701) and the inner wall of the second vertical door frame profile (1702) are respectively provided with a fifth brush strip (24).

7. The narrow side sliding door structure according to claim 6, characterized in that: The first vertical fan frame (22) comprises a first vertical fan frame profile (2201) and a second vertical fan frame profile (2202); a vertical fan frame heat insulation strip (2203) is arranged between the first vertical fan frame profile (2201) and the second vertical fan frame profile (2202); the second vertical fan frame (23) comprises a third vertical fan frame profile (2301); an extended protrusion (2302) is arranged on the third vertical fan frame profile (2301); an abutting rubber strip (2303) is arranged on the extended protrusion (2302); and a sixth brush strip (2304) is arranged on the abutting rubber strip (2303).