Cloth-wrapped lower beam and cloth-wrapped lower beam assembly

Abstract

The utility model provides a cloth-wrapped lower beam and a cloth-wrapped lower beam assembly, which belong to the technical field of curtain lower beams, and comprise a lower beam section bar, a first clamping groove is arranged on the inner side of the top of the front end, a second clamping groove is arranged on the outer side of the top of the rear end, and a cavity is formed on the inner side of the bottom; one end of the cloth cover is connected with the first clamping groove in a clamped mode through a hard piece, and the other end of the cloth cover is connected with the second clamping groove in a clamped mode through an elastic piece so that the cloth cover can wrap the outer end face of the lower beam profile tightly. The other end of the cloth cover is fixed by adopting the elastic sheet, so that the defects of high fabric compatibility, easiness in long-time viscous force failure and the like existing in double-faced adhesive tape fixation can be overcome; the connection between the elastic sheet and the cloth cover can accommodate the cutting tolerance of the fabric, the elastic sheet can provide elastic force for keeping the cloth cover tight, and the fabric can be installed in place through manual bending, and is quick to install, good in economic benefit and high in yield.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain lower beams, in particular to a cloth-covered lower beam and the general assembly of the cloth-covered lower beam. Background Art

[0002] In the current curtain design, the lower beam is mainly made of aluminum alloy or plastic materials and is often decorated by processes such as spraying or baking paint. However, this decoration method often only provides limited color options, and its appearance effect largely depends on the quality of the spraying or baking paint process. There is an obvious gloss difference between the lower beam made of metal or plastic and the curtain fabric, which not only affects the overall visual effect of the curtain, but also when the curtain moves or is blown by the wind, the collision between the lower beam and the aluminum alloy window frame will produce harsh noises, affecting the living experience.

[0003] To solve these problems, the concept of the cloth-covered lower beam came into being. The cloth-covered lower beam aims to improve the overall appearance consistency and reduce noise by wrapping a layer of fabric that matches the curtain fabric. However, there are some defects in the existing cloth-covered lower beam technology. For example, the Chinese patent with the publication number CN219795126U discloses a cloth-covered curtain lower beam system, including a U-shaped lower beam, a U-shaped lower beam end cap, and a round lower beam. In this solution, a cloth clamping groove is arranged on the outer side of the top of the U-shaped lower beam, and a strip-shaped double-sided adhesive is adhered to the inner outer surface. When covering the cloth, one end of the cloth surface with an adhesive pressing strip is placed in the cloth clamping groove, and the other end of the cloth surface bypasses the outer surface of the U-shaped lower beam and is adhered to the strip-shaped double-sided adhesive. This solution has the problem that the cloth surface may fall off due to the failure of the double-sided adhesive after long-term use, and the adhesion of the double-sided adhesive to different fabrics is different, and the fabric compatibility is not strong; at the same time, when fixing the cloth surface with the double-sided adhesive, it is necessary to manually straighten and press it firmly at the same time, increasing the operation difficulty of covering the cloth. In addition, the top opening of the U-shaped lower beam is relatively large. When the curtain cloth surface is a zebra curtain cloth, it is easy to cause too large a distance between the front and rear layers of the cloth surface, affecting the light-shielding effect. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a cloth-covered lower beam and the general assembly of the cloth-covered lower beam.

[0005] To achieve the above and other purposes, the utility model is realized by including the following technical solutions: As a first aspect, the utility model provides a cloth-covered lower beam, including a lower beam profile, a first clamping groove is arranged on the inner side of the top at the front end, a second clamping groove is arranged on the outer side of the top at the rear end, and a cavity is formed on the inner side of the bottom; a cloth surface, one end is clamped with the first clamping groove through a hard piece, and the other end is clamped with the second clamping groove through an elastic piece, so that the cloth surface is wrapped tightly on the outer end surface of the lower beam profile.

[0006] In one embodiment, the bottom surface length of the second card slot is greater than half of the length of the outer end surface of the rear end of the lower beam profile.

[0007] In one embodiment, a constriction structure is formed in the second card slot in the direction of the first card slot, and the distance between the bottom of the first card slot and the constriction structure is not greater than the size of the top opening of the lower beam profile.

[0008] In one embodiment, one end of the cloth surface is fixedly connected to the hard piece by welding, stapling or bonding.

[0009] In one embodiment, the hard piece is a pressure strip with glue.

[0010] In one embodiment, the other end of the cloth surface is fixedly connected to the elastic piece by welding or stapling.

[0011] In one embodiment, the elastic piece is a thin sheet with elasticity, and the thickness is 0.2 mm to 0.5 mm.

[0012] In one embodiment, the lower beam profile is approximately teardrop-shaped.

[0013] As a first aspect, the present utility model proposes a wrapped lower beam assembly, including the wrapped lower beam as described in the first aspect; a round rod disposed in the cavity of the wrapped lower beam for winding a curtain cloth; and two side covers respectively used for fixedly installing both ends of the wrapped lower beam and the round rod.

[0014] In one embodiment, the curtain cloth is a zebra curtain cloth.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model uses an elastic piece to fix the other end of the cloth surface, which can avoid the disadvantages of strong fabric compatibility and easy failure of adhesion over a long time existing in the double-sided tape fixation; and the connection between the elastic piece and the cloth surface can accommodate the tolerance of fabric cutting. The elastic piece can provide the elastic force to keep the cloth surface taut, and can be installed in place by manual bending, with fast installation, good economic benefits and high qualified product rate;

[0017] 2. The bottom surface length of the second card slot of the present utility model is greater than half of the length of the outer end surface of the rear end of the lower beam profile, which can ensure that the elastic piece has sufficient installation space to ensure that after it is elastically deformed enough and snapped into the second card slot, the cloth surface is taut on the outer end surface of the lower beam profile;

[0018] 3. The design of the constriction structure of the present utility model can ensure that when the curtain cloth installed on the round rod leaves from the top of the lower beam profile, the two layers of cloth at the front end and the rear end are closer, so as to increase the light shielding effect of curtain cloths such as zebra curtain cloths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It shows a schematic structural view of a lower beam with wrapping cloth of the present utility model.

[0020] Figure 2 It shows a schematic structural view of the lower beam profile in the lower beam with wrapping cloth of the present utility model.

[0021] Figure 3 It shows a three-dimensional structural view of the general assembly of a lower beam with wrapping cloth of the present utility model (the cloth surface and the curtain cloth are not shown).

[0022] Figure 4 It shows a schematic internal structural view of the general assembly of a lower beam with wrapping cloth of the present utility model.

[0023] In the figure: 10, lower beam with wrapping cloth; 11, lower beam profile, 111, first card slot, 112, second card slot, 1121, closing structure, 113, cavity; 12, cloth surface, 13, hard sheet, 14, elastic sheet; 20, round rod, 21, curtain cloth; 30, side cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Please refer to Figures 1-4 . The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0025] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have any technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0026] Unless otherwise defined, the technical terms or scientific terms used here should be understood in the general sense by those with ordinary skills in the field to which the present utility model belongs. The words such as "one", "a" or "the" used in the present utility model do not indicate a quantity limit either, but only mean that there is at least one. Words such as "including" or "comprising" etc. mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The serial numbers assigned to the components in this specification itself, such as "first", "second", etc., are only used to distinguish the objects described, and do not have any sequential or technical meaning. And the "connection" mentioned in the present invention, unless otherwise specified, includes both direct and indirect connections.

[0027] In the present utility model, the "front end" refers to the end facing the user after the installation of the lower beam of the wrapping cloth, and the "rear end" refers to the end facing the window after the installation of the lower beam of the wrapping cloth.

[0028] In order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0029] Embodiment 1

[0030] As Figure 1 and Figure 2 shown, this embodiment provides a lower beam 10 of a wrapping cloth, including a lower beam profile 11, a cloth surface 12, a hard sheet 13 and an elastic sheet 14. The lower beam profile 11 is approximately water-drop-shaped. A first card slot 111 is provided inside the top of the front end, a second card slot 112 is provided outside the top of the rear end, and a cavity 113 is formed inside the bottom. One end of the cloth surface 12 is fixedly connected to the hard sheet 13 by welding, stapling or bonding, etc. Specifically, the hard sheet 13 can be a pressure strip with glue, or other hard sheets that can be fixedly connected to various fabrics. The other end of the cloth surface 12 is fixedly connected to the elastic sheet 14 by welding, stapling, etc. Specifically, the elastic sheet 14 is a thin sheet with elasticity, which can be rectangular and has a thickness between 0.2 mm and 0.5 mm. The hard sheet 13 is snap-fitted with the first card slot 111, and the elastic sheet 14 is snap-fitted with the second card slot 112, so that the cloth surface 12 is wrapped tightly on the outer end surface of the lower beam profile 11.

[0031] When wrapping the cloth for the lower beam 10 of the wrapping cloth, first, the hard sheet 13 is inserted into the first card slot 111 from the side; then, the cloth surface 12 is passed out from the top of the first card slot 111 and wrapped along the outer end surface contour of the lower beam profile 11; finally, the elastic deformation amount of the elastic sheet 14 is used to press the elastic sheet 14 into the second card slot 112 from the top of the second card slot 112.

[0032] The design of this embodiment uses the elastic sheet 14 to fix the other end of the cloth surface 12, which can avoid the disadvantages of strong fabric compatibility and easy failure of adhesion over a long time existing in the double-sided tape fixation; and the connection between the elastic sheet 14 and the cloth surface 12 can accommodate the tolerance of fabric cutting, and the elastic sheet 14 can provide the elastic force to keep the cloth surface 12 taut. It can be installed in place by manual bending, with fast installation, good economic benefits and high qualified product rate.

[0033] Furthermore, the bottom length of the second card slot 112 is greater than half of the length of the outer end face of the rear end of the lower beam profile 11. This design can ensure that the elastic sheet 14 has sufficient installation space to ensure that it can undergo sufficient elastic deformation so that after it is snapped into the second card slot 112, the cloth surface 12 is tightened on the outer end face of the lower beam profile 11.

[0034] Furthermore, the second card slot 112 is formed with a necking structure 1121 in the direction of the first card slot 111, so that the distance between the bottom of the first card slot 111 and the necking structure 1121 is not greater than the size of the top opening of the lower beam profile 11. Please refer to Figure 4 , this design can ensure that when the curtain cloth 21 mounted on the round rod 20 leaves from the top of the lower beam profile 11, the two layers of cloth at the front end and the rear end are closer, so as to increase the light-shielding effect of the curtain cloth 21 such as the zebra curtain cloth.

[0035] Embodiment 2

[0036] As Figure 3 and Figure 4 shown, this embodiment provides a wrapped cloth lower beam assembly, including a wrapped cloth lower beam 10, a round rod 20 and side covers 30. The wrapped cloth lower beam 10 is as described in Embodiment 1; the round rod 20 is arranged in the cavity 113 of the wrapped cloth lower beam 10 for winding the curtain cloth 21; there are two side covers 30, which are respectively used to fixedly install both ends of the wrapped cloth lower beam 10 and the round rod 20.

[0037] The fabric and color of the cloth surface 12 of the wrapped cloth lower beam 10 and the curtain cloth 21 can be the same or different, and can be customized according to user needs.

[0038] Therefore, the present utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A wrapped lower beam, characterized in that, including a lower beam profile, with a first card slot provided on the inner side of the top at the front end, a second card slot provided on the outer side of the top at the rear end, and a cavity formed on the inner side of the bottom; a cloth surface, one end of which is clamped to the first card slot through a rigid sheet, and the other end of which is clamped to the second card slot through an elastic sheet, so that the cloth surface is wrapped tightly around the outer end face of the lower beam profile.

2. The wrapping lower beam according to claim 1, characterized in that, The bottom surface length of the second card slot is greater than half of the outer end face length of the rear end of the lower beam profile.

3. The wrapping lower beam according to claim 1, characterized in that, A closing structure is formed in the direction of the first card slot in the second card slot, and the distance between the bottom of the first card slot and the closing structure is not greater than the size of the top opening of the lower beam profile.

4. The under beam with wrapping cloth according to claim 1, characterized in that, One end of the cloth surface is fixedly connected to the rigid sheet by welding, stapling or bonding.

5. The wrapping lower beam according to claim 4, characterized in that The rigid sheet is a strip with glue.

6. The wrapped lower beam according to claim 1, wherein The other end of the cloth surface is fixedly connected to the elastic sheet by welding or stapling.

7. The under beam of the wrapping cloth according to claim 6, characterized in that, The elastic sheet is a thin sheet with elasticity, and the thickness is 0.2 mm to 0.5 mm.

8. The wrapping lower beam according to claim 1, wherein The lower beam profile is approximately in the shape of a water droplet.

9. An assembly of the lower beam with wrapping cloth, characterized in that, including a cloth-covered lower beam as described in any one of claims 1 to 8; a round rod, arranged in the cavity of the cloth-covered lower beam for winding a curtain cloth; two side covers, respectively used for fixedly installing both ends of the cloth-covered lower beam and the round rod.

10. The overall assembly of the lower beam with wrapper according to claim 9, characterized in that, The curtain cloth is a zebra curtain cloth.

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