Narrow-frame sliding door

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By adding structural reinforcements to the vertical profile components of the narrow-frame sliding door, the problem of insufficient structural strength of the narrow-frame sliding door is solved, and the structural strength and aesthetics of the door frame are enhanced.

CN223374281UActive Publication Date: 2025-09-23ZHEJIANG ZHONGCAI PROFILE CO LTD

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Patent Information

Application Number: CN202422506509.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-10-16
Publication Date: 2025-09-23
Estimated Expiration: 2034-10-16

AI Technical Summary

Technical Problem

The existing narrow-frame sliding doors have low structural strength and are easily deformed and damaged. The door frame is not strong enough, resulting in a loss of structural strength.

Method used

Structural reinforcements, including restraint buckles, elastic bending parts and L-shaped connectors, are added to the vertical profile components of the door frame. The restraint buckles are used to tighten the side panels on both sides to the inner wall of the profile cavity to enhance the structural strength.

Benefits of technology

It enhances the structural strength of narrow-frame sliding doors, prevents deformation and damage, and improves the service life and aesthetics of the door frame.

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Abstract

The utility model provides a narrow frame sliding door which comprises a door frame composed of a transverse profile assembly, a first vertical profile assembly and a second vertical profile assembly, glass is arranged in the door frame, the first vertical profile assembly comprises a first profile body, and a first profile cavity is formed in the first profile body; the second vertical profile assembly comprises a second profile body, a second profile cavity is formed in the second profile body, and structural reinforcers are arranged in the first profile cavity and the second profile cavity; the structural reinforcer comprises a restraining buckle and an arc-shaped elastic bending part, side plates are arranged at the two ends of the elastic bending part respectively, and the inner sides of the two side plates are each provided with an L-shaped connecting piece. According to the utility model, the structural reinforcers are additionally arranged in the first section bar cavity and the second section bar cavity, and the structural reinforcers are used for carrying out structural reinforcement on the first vertical section bar assembly and the second vertical section bar assembly so as to make up the structural strength loss caused by narrowing of the widths of the first vertical section bar assembly and the second vertical section bar assembly.

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Description

Technical Field

[0001] The utility model relates to the technical field of sliding doors, in particular to a sliding door with a narrow frame. Background Art

[0002] Sliding doors are a common type of door that open and close by moving horizontally, rather than rotating like traditional hinged doors. This structural design makes sliding doors very suitable for places with limited space because they do not require additional space during the opening and closing process. They are often used in scenarios such as interior partitions and balcony doors.

[0003] Existing sliding doors typically consist of a doorframe constructed from plastic-steel profiles, with glass installed within. The upper and lower ends of the doorframe are connected to tracks to enable movement. The doorframe is composed of two vertical profile components connected to two horizontal profile components. To increase the light transmission area of the glass and improve aesthetics, some existing doorframes adopt a narrow frame structure. This reduces the width of the vertical profile components to reduce the actual doorframe area, thereby increasing the light transmission area of the glass and enhancing the aesthetics of the sliding door.

[0004] However, in a door frame with a narrow frame structure, the structural strength of the door frame decreases due to the narrowing of the width of the door frame profile components, and the door frame is prone to deformation and damage. Summary of the Invention

[0005] The purpose of the utility model is to solve the deficiencies in the prior art and provide a sliding door with a narrow frame.

[0006] The purpose of the utility model is achieved through the following technical solution: a narrow-frame sliding door, comprising a door frame composed of a horizontal profile assembly, a first vertical profile assembly, and a second vertical profile assembly, wherein glass is provided in the door frame, the first vertical profile assembly comprises a first profile body, wherein a first profile cavity is provided in the first profile body; the second vertical profile assembly comprises a second profile body, wherein a second profile cavity is provided in the second profile body, and structural reinforcements are provided in both the first profile cavity and the second profile cavity;

[0007] The structural reinforcement comprises a restraining buckle and an arc-shaped elastic bending portion, with side plates provided at both ends of the elastic bending portion, and an L-shaped connecting piece provided on the inner side of each of the two side plates;

[0008] Before the structural reinforcement is installed in the first profile cavity or the second profile cavity, the structural reinforcement is in a restrained state, and the two L-shaped connecting pieces on the structural reinforcement are simultaneously connected to the restraining buckles;

[0009] After the structural reinforcement is installed in the first profile cavity or the second profile cavity, the structural reinforcement is in an open state, and the side plates on both sides of the structural reinforcement are tightly pressed against the inner wall of the first profile cavity or the second profile cavity.

[0010] Preferably, the elastic bending portion is made of spring steel.

[0011] Preferably, the cross section of the restraint buckle is U-shaped.

[0012] Preferably, a first sealing strip slot is provided on the first profile body, a first pressure strip is connected to the first profile body, a third sealing strip slot is provided on the first pressure strip, sealing strips are connected to the first sealing strip slot and the third sealing strip slot, and the glass is sandwiched between the sealing strips on the first sealing strip slot and the third sealing strip slot; a protrusion is provided on one side of the first profile body.

[0013] Preferably, a first bead connecting groove is provided on the first profile body, and a first connecting portion is provided at one end of the first bead, and the first connecting portion is connected to the first bead connecting groove.

[0014] Preferably, a second sealing strip slot is provided on the second profile body, a second molding is connected to the second profile body, a fourth sealing strip slot is provided on the second molding, and sealing strips are connected to the second sealing strip slot and the fourth sealing strip slot, and the glass is sandwiched between the sealing strips on the second sealing strip slot and the fourth sealing strip slot.

[0015] Preferably, a second bead connecting groove is provided on the second profile body, and a second connecting portion is provided at one end of the second bead, and the second connecting portion is connected to the second bead connecting groove.

[0016] The beneficial effect of the present invention is that: in the present invention, structural reinforcements are installed in the first profile cavity and the second profile cavity, and the structural reinforcements are used to structurally reinforce the first vertical profile assembly and the second vertical profile assembly to compensate for the structural strength loss of the first vertical profile assembly and the second vertical profile assembly caused by the narrowing of the width. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a narrow-frame sliding door.

[0018] Figure 2 2 is a cross-sectional view of the first vertical profile assembly.

[0019] Figure 3 2 is a cross-sectional view of the second vertical profile assembly.

[0020] Figure 4 This is the screenshot when the structural reinforcement is in the constrained state.

[0021] Figure 5 This is a cross-sectional view of the structural reinforcement in the expanded state.

[0022] Figure 6Schematic diagram of the connection between the second vertical profile assembly and the horizontal profile assembly.

[0023] In the figure: 1. first vertical profile assembly, 1-1. first profile body, 1-2. protruding portion, 1-3. first bead connecting groove, 1-4. first profile cavity, 1-5. first sealing strip slot, 1-6. first wool strip slot, 2. second vertical profile assembly, 2-1. second profile body, 2-3. second bead connecting groove, 2-4. second profile cavity, 2-5. second sealing strip slot, 2-6. second wool strip slot, 3. horizontal profile assembly, 4. glass, 5. first bead, 5-1. first connecting portion, 5-2. third sealing strip slot, 6. sealing strip, 7. structural reinforcement, 7-1. elastic bending portion, 7-2. side panel, 7-3. L-shaped connector, 7-4. restraint buckle, 8. second bead, 8-1. second connecting portion, 8-2. fourth sealing strip slot, 10. first seam, 11. second seam. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0025] like Figures 1 to 6 As shown, a narrow-frame sliding door includes a door frame consisting of a horizontal profile assembly 3, a first vertical profile assembly 1, and a second vertical profile assembly 2. The door frame is provided with glass 4. The first vertical profile assembly 1 includes a first profile body 1-1, and a first profile cavity 1-4 is provided in the first profile body 1-1; the second vertical profile assembly 2 includes a second profile body 2-1, and a second profile cavity 2-4 is provided in the second profile body 2-1. Structural reinforcement members 7 are provided in both the first profile cavity 1-4 and the second profile cavity 2-4.

[0026] The structural reinforcement 7 includes a restraining buckle 7-4, an arc-shaped elastic bending portion 7-1, and side plates 7-2 are respectively provided at both ends of the elastic bending portion 7-1. An L-shaped connecting piece 7-3 is respectively provided on the inner side of the two side plates 7-2.

[0027] Before the structural reinforcement 7 is inserted into the first profile cavity 1-4 or the second profile cavity 2-4, the structural reinforcement 7 is in a restrained state, and the two L-shaped connectors 7-3 on the structural reinforcement 7 are simultaneously connected to the restraining buckles 7-4;

[0028] After the structural reinforcement 7 is installed in the first profile cavity 1-4 or the second profile cavity 2-4, the structural reinforcement 7 is in an open state, and the side panels 7-2 on both sides of the structural reinforcement 7 are tightly pressed against the inner wall of the first profile cavity or the second profile cavity 2-4.

[0029] In the present invention, the door frame is connected by a first vertical profile component 1, a second vertical profile component 2 and two horizontal profile components 3, wherein a structural reinforcement 7 is installed in the first profile cavity 1-4 and the second profile cavity, and the structural reinforcement 7 is used to structurally reinforce the first vertical profile component 1 and the second vertical profile component 2 to compensate for the loss of structural strength of the first vertical profile component 1 and the second vertical profile component 2 due to the narrowing of the width. The structural reinforcement 7 is made of steel as a whole, wherein the elastic bending portion 7-1 on the structural reinforcement 7 is made of steel with relatively high elasticity, so that the elastic bending portion 7-1 has good bending performance. Before the structural reinforcement 7 is installed in the first profile cavity 1-4 or the second profile cavity, the structural reinforcement 7 is in a constrained state (such as Figure 4 As shown), at this time, the L-shaped connecting members 7-3 on both sides of the structural reinforcement 7 are buckled together by the restraining buckle 7-4. Under the restraint of the restraining buckle 7-4, the side panels 7-2 on both sides of the structural reinforcement 7 are in a retracted state. At this time, the distance between the side panels 7-2 on both sides is relatively small, and the overall width of the structural reinforcement 7 is smaller than the width of the first profile cavity 1-4 or the second profile cavity, so that the structural reinforcement 7 can be easily installed in the first profile cavity 1-4 or the second profile cavity; after the structural reinforcement 7 is installed in the first profile cavity 1-4 or the second profile cavity, the restraining buckle 7-4 connected to the structural reinforcement 7 is removed. At this time, under the action of the elastic bending part 7-1, the side panels 7-2 are opened to both sides, and the structural reinforcement 7 is changed from the restrained state to the opened state (as shown in FIG. Figure 5 As shown), the opened side panel 7-2 is pressed tightly against the inner wall of the first profile cavity 1-4 or the second profile cavity, so that the structural reinforcement 7 is stably fixed in the first profile cavity 1-4 or the second profile cavity, avoiding the structural reinforcement 7 from shaking in the profile cavity.

[0030] The length of the structural reinforcement 7 is the same as the length of the first vertical profile assembly 1 or the second vertical profile assembly 2 .

[0031] The elastic bending portion 7-1 is made of spring steel. The cross section of the restraining buckle 7-4 is U-shaped. The length of the restraining buckle 7-4 is slightly smaller than the length of the structural reinforcement 7.

[0032] The first profile body 1-1 is provided with a first sealing strip slot 1-5, to which a first pressure strip 5 is connected. The first pressure strip 5 is provided with a third sealing strip slot 5-2. Sealing strips 6 are connected to both the first and third sealing strip slots 1-5 and 5-2, respectively. The glass 4 is sandwiched between the sealing strips 6 in the first and third sealing strip slots 1-5 and 5-2. A protrusion 1-2 is provided on one side of the first profile body 1-1. The protrusion 1-2 can serve as a door handle, allowing users to push and pull the door frame.

[0033] Among them, a first bead connecting groove 1-3 is provided on the first profile body 1-1, and a first connecting portion 5-1 is provided at one end of the first bead 5, and the first connecting portion 5-1 is connected to the first bead connecting groove 1-3.

[0034] The first profile body 1 - 1 is further provided with a first wool strip slot 1 - 6 for inserting the wool strip.

[0035] A second sealing strip slot 2-5 is provided on the second profile body 2-1, a second molding 8 is connected to the second profile body 2-1, a fourth sealing strip slot 8-2 is provided on the second molding 8, and sealing strips 6 are connected to both the second sealing strip slot 2-5 and the fourth sealing strip slot 8-2. The glass 4 is sandwiched between the sealing strips 6 on the second sealing strip slot 2-5 and the fourth sealing strip slot 8-2.

[0036] Among them, a second bead connecting groove 2-3 is provided on the second profile body 2-1, and a second connecting portion 8-1 is provided at one end of the second bead 8, and the second connecting portion 8-1 is connected to the second bead connecting groove 2-3.

[0037] The second profile body 2-1 is further provided with a second wool strip slot 2-6 for inserting the wool strip.

[0038] The connection between the second vertical profile component 2 and the horizontal profile component 3 is as follows Figure 6 As shown, the connection between the second vertical profile component 2 and the horizontal profile component 3 forms a first seam 10 and a second seam 11. The angle α between the first seam 10 and the horizontal line is 45 degrees, and the angle β between the second seam 11 and the vertical line is 10°-15°.

[0039] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. A narrow frame sliding door, characterized in that: A door frame comprising a horizontal profile assembly, a first vertical profile assembly, and a second vertical profile assembly, wherein glass is provided in the door frame, the first vertical profile assembly comprising a first profile body, wherein a first profile cavity is provided in the first profile body; the second vertical profile assembly comprising a second profile body, wherein a second profile cavity is provided in the second profile body, and structural reinforcements are provided in both the first profile cavity and the second profile cavity; The structural reinforcement comprises a restraining buckle and an arc-shaped elastic bending portion, with side plates provided at both ends of the elastic bending portion, and an L-shaped connecting piece provided on the inner side of each of the two side plates; Before the structural reinforcement is installed in the first profile cavity or the second profile cavity, the structural reinforcement is in a restrained state, and the two L-shaped connecting pieces on the structural reinforcement are simultaneously connected to the restraining buckles; After the structural reinforcement is installed in the first profile cavity or the second profile cavity, the structural reinforcement is in an open state, and the side plates on both sides of the structural reinforcement are tightly pressed against the inner wall of the first profile cavity or the second profile cavity.

2. A narrow-frame sliding door according to claim 1, characterized in that: The elastic bending portion is made of spring steel.

3. The narrow-frame sliding door according to claim 1, characterized in that: The cross section of the restraint buckle is U-shaped.

4. The narrow-frame sliding door according to claim 1, characterized in that: The first profile body is provided with a first sealing strip slot, the first profile body is connected to a first pressure strip, the first pressure strip is provided with a third sealing strip slot, the first sealing strip slot and the third sealing strip slot are both connected to sealing strips, and the glass is sandwiched between the sealing strips on the first sealing strip slot and the third sealing strip slot; a protrusion is provided on one side of the first profile body.

5. The narrow-frame sliding door according to claim 4, characterized in that: A first pressure strip connecting groove is provided on the first profile body, and a first connecting portion is provided at one end of the first pressure strip, and the first connecting portion is connected to the first pressure strip connecting groove.

6. The narrow-frame sliding door according to claim 1, characterized in that: A second sealing strip slot is provided on the second profile body, a second pressure strip is connected to the second profile body, a fourth sealing strip slot is provided on the second pressure strip, and sealing strips are connected to the second sealing strip slot and the fourth sealing strip slot, and the glass is sandwiched between the sealing strips on the second sealing strip slot and the fourth sealing strip slot.

7. The narrow-frame sliding door according to claim 6, characterized in that: A second pressure strip connecting groove is provided on the second profile body, and a second connecting portion is provided at one end of the second pressure strip, and the second connecting portion is connected to the second pressure strip connecting groove.