CN221703527U - A three-sealed barrier-free threshold structure - Google Patents

Abstract

The utility model discloses a three-sealed barrier-free threshold structure, which relates to the field of building technology and comprises an outer thermally broken aluminum threshold. A door leaf body is arranged on the top of the outer thermally broken aluminum threshold. The three-sealed barrier-free threshold structure realizes three-sealing by adding a first lap joint structure, a second lap joint structure and a third lap joint structure to the lower end of the door leaf body, and a door leaf rubber strip groove frame and a door leaf outer decorative rubber strip groove are specially designed to improve air tightness, thereby ensuring the effect of the door leaf body in isolating the indoor space. When facing thresholds of different widths, three-sealing of thresholds of different series of widths can be realized by replacing insulation strips of different widths, thereby avoiding the problem of insufficient air tightness caused by the existing swing door threshold, the junction of the three profiles of the door leaf and the inner and outer threshold base insulation strips, which generally only adopts single-sealing or two-sealing without other treatment.

Description

A three-sealed barrier-free threshold structure

Technical Field

The utility model relates to the technical field of construction, in particular to a three-sealed barrier-free threshold structure.

Background Art

With the advancement of science and technology and the development of society, people's living standards have been improved, and people's demand for living environment has also increased. Doors are an important part of the home living environment. In the current industry, in the field of production, many forms of swing doors are encountered. Often in the design of the swing door threshold structure, the air tightness generally does not meet the design requirements, generally below level 4. According to the (GB/T 7106-2019) issued by the National Standardization Administration of the State Administration for Market Regulation: Airtightness, Watertightness, and Wind Pressure Resistance Performance Test Methods for External Doors and Windows of Buildings. The largest leakage point is at the intersection of the three profiles of the door leaf and the inner and outer threshold base insulation strips. Generally, only single-pass sealing or two-pass sealing is used without other treatment. It will lead to insufficient airtightness and poor sealing effect.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides a three-sealed barrier-free threshold structure, which solves the problems raised in the above-mentioned background technology.

To achieve the above objectives, the utility model is implemented through the following technical solutions: a three-sealed barrier-free threshold structure, including an outer thermally-broken aluminum threshold, a door leaf body is arranged on the top of the outer thermally-broken aluminum threshold, a door leaf outer decorative rubber strip groove is arranged at one end below the door leaf body, a third lap joint structure is installed below the door leaf outer decorative rubber strip groove, a first lap joint structure is arranged on the inner side of the other end below the door leaf body, a threshold cover plate is arranged on one side of the outer thermally-broken aluminum threshold, the first lap joint structure is fitted with the threshold cover plate, a thermal insulation strip is installed on the outer thermally-broken aluminum threshold, a door leaf rubber strip groove frame is installed below the door leaf body and between the first lap joint structure and the door leaf outer decorative rubber strip groove, a second lap joint structure is installed below the door leaf rubber strip groove frame, and the second lap joint structure is fitted with the thermal insulation strip.

Optionally, the third overlapping structure, the second overlapping structure and the first overlapping structure are all sealing strips, and the notches of the third overlapping structure, the second overlapping structure and the first overlapping structure are all C-shaped.

Optionally, the width of the decorative rubber strip groove on the door leaf is 19.2 mm and the height is 22.2 mm.

Optionally, the door leaf rubber strip groove frame is made of glass fiber polyurethane material, and the door leaf rubber strip groove frame is fixed to the door leaf body by screws.

Optionally, the door leaf rubber strip groove frame may be made of plastic material, and the width of the door leaf rubber strip groove frame is 21.3 mm and the height is 12.6 mm.

Optionally, the door leaf rubber strip groove frame and the door leaf outer decorative rubber strip groove are both L-shaped.

The utility model provides a three-sealed barrier-free threshold structure, which has the following beneficial effects:

The three-sealed barrier-free threshold structure realizes three-sealing by adding a first overlapping structure, a second overlapping structure and a third overlapping structure to the lower end of the door leaf body, as well as a door leaf rubber strip groove frame and a door leaf outer decorative rubber strip groove, thereby improving air tightness and ensuring the effect of the door leaf body in isolating the indoor space. When facing thresholds of different widths, three-sealing of thresholds of different series of widths can be achieved by replacing insulation strips of different widths, avoiding the existing casement door threshold, the intersection of the three profiles of the door leaf and the inner and outer threshold base insulation strips, which generally only use single-sealing or two-sealing without other treatment, resulting in insufficient air tightness.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a structural diagram of a three-sealed barrier-free threshold of the utility model.

In the figure: 1. External thermally-insulated aluminum door sill; 2. Door leaf rubber strip groove frame; 3. Door leaf external decorative rubber strip groove; 4. Door leaf body; 5. Thermal insulation strip; 6. First lap joint structure; 7. Second lap joint structure; 8. Third lap joint structure.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figure 1. The utility model provides a technical solution: a three-sealed barrier-free threshold structure, including an outer thermally-broken aluminum threshold 1, a door leaf body 4 is arranged on the top of the outer thermally-broken aluminum threshold 1, a door leaf body 4 is arranged at one end below the door leaf body 4, a door leaf outer decorative rubber strip groove 3 is arranged, a third lap joint structure 8 is installed below the door leaf outer decorative rubber strip groove 3, a first lap joint structure 6 is arranged on the inner side of the other end below the door leaf body 4, a threshold cover plate is arranged on one side of the outer thermally-broken aluminum threshold 1, the first lap joint structure 6 is fitted with the threshold cover plate, a thermal insulation strip 5 is installed on the outer thermally-broken aluminum threshold 1, a door leaf rubber strip groove frame 2 is installed below the door leaf body 4 and between the first lap joint structure 6 and the door leaf outer decorative rubber strip groove 3, a second lap joint structure 7 is installed below the door leaf rubber strip groove frame 2, and the second lap joint structure 7 is fitted with the thermal insulation strip 5.

The third overlap structure 8, the second overlap structure 7 and the first overlap structure 6 are all sealing strips, and the notches of the third overlap structure 8, the second overlap structure 7 and the first overlap structure 6 are all C-shaped. The width of the door leaf outer decorative strip groove 3 is 19.2 mm, and the height is 22.2 mm. The door leaf strip groove frame 2 is made of glass fiber polyurethane material, and the door leaf strip groove frame 2 is fixed to the door leaf body 4 by screws. The door leaf strip groove frame 2 can also be made of plastic material. The width of the door leaf strip groove frame 2 is 21.3 mm, and the height is 12.6 mm. The plastic material is preferably PVC, PP, nylon and other materials, and can be processed by pressing and extrusion. The shape of the door leaf strip groove frame 2 and the door leaf outer decorative strip groove 3 are both L-shaped.

In summary, when the three-sealed barrier-free threshold structure is in use, three seals are achieved by adding the first lap joint structure 6, the second lap joint structure 7 and the third lap joint structure 8 to the lower end of the door leaf body 4, as well as the door leaf rubber strip groove frame 2 and the door leaf outer decorative rubber strip groove 3, thereby improving the airtightness and ensuring the effect of the door leaf body 4 in isolating the indoor space. When facing thresholds of different widths, three-sealing of thresholds of different series widths can be achieved by replacing the insulation strips 5 of different widths.

In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

Claims (6)

1. A three-sealed barrier-free threshold structure, comprising an outer thermally-broken aluminum threshold (1), characterized in that: a door leaf body (4) is arranged on the top of the outer thermally-broken aluminum threshold (1), a door leaf outer decorative rubber strip groove (3) is arranged at one end below the door leaf body (4), a third lap joint structure (8) is installed below the door leaf outer decorative rubber strip groove (3), a first lap joint structure (6) is arranged on the inner side of the other end below the door leaf body (4), a threshold cover plate is arranged on one side of the outer thermally-broken aluminum threshold (1), the first lap joint structure (6) is fitted with the threshold cover plate, a heat insulation strip (5) is installed on the outer thermally-broken aluminum threshold (1), a door leaf rubber strip groove frame (2) is installed below the door leaf body (4) and between the first lap joint structure (6) and the door leaf outer decorative rubber strip groove (3), a second lap joint structure (7) is installed below the door leaf rubber strip groove frame (2), and the second lap joint structure (7) is fitted with the heat insulation strip (5). 2. A three-sealed barrier-free threshold structure according to claim 1, characterized in that: the third overlapping structure (8), the second overlapping structure (7) and the first overlapping structure (6) are all sealing strips, and the notches of the third overlapping structure (8), the second overlapping structure (7) and the first overlapping structure (6) are all C-shaped. 3. A three-sealed barrier-free threshold structure according to claim 1, characterized in that the width of the decorative rubber strip groove (3) outside the door leaf is 19.2 mm and the height is 22.2 mm. 4. A three-sealed barrier-free threshold structure according to claim 1, characterized in that: the door leaf rubber strip groove frame (2) is made of glass fiber polyurethane material, and the door leaf rubber strip groove frame (2) is fixed to the door leaf body (4) by screws. 5. A three-sealed barrier-free threshold structure according to claim 1, characterized in that: the door leaf rubber strip groove frame (2) can be made of plastic material, and the width of the door leaf rubber strip groove frame (2) is 21.3 mm and the height is 12.6 mm. 6. A three-sealed barrier-free threshold structure according to claim 1, characterized in that the shape of the door leaf rubber strip groove frame (2) and the door leaf outer decorative rubber strip groove (3) are both L-shaped.