A bottom rail unit and a combined roller blind bottom rail

Abstract

The utility model discloses a bottom beam unit and combined roller shutter bottom beam, bottom beam unit includes bottom beam mechanism, is provided with a plurality of reinforcing cavities and a plurality of positioning holes respectively on it, the seal plate of detachable clamping connection is on the one side of bottom beam mechanism, the lock cloth buckle plate of detachable clamping connection in bottom beam mechanism, and the lock cloth buckle plate cooperates with bottom beam mechanism and carries out spacing operation to the lock rod on roller shutter cloth. The utility model discloses a split type bottom beam unit, and then a plurality of standardized bottom beam units are assembled into roller shutter bottom beam, which facilitates the assembly operation of the roller shutter bottom beam. By setting a plurality of reinforcing rods in a plurality of bottom beam units, the bending resistance and torsion energy absorption of the roller shutter bottom beam are enhanced. Meanwhile, a plurality of positioning holes are arranged on the side edge of the bottom beam mechanism, and the two ends of the connecting pin are arranged in the corresponding positioning holes, so that the two adjacent bottom beam mechanisms are horizontally aligned and spliced with zero gap.

Description

Technical Field

[0001] This utility model relates to the field of roller blind accessories technology, and in particular to a bottom beam unit and a combined roller blind bottom beam. Background Technology

[0002] Existing balcony roller blinds are typically 4-6 meters wide. Traditional integrated roller blind bottom beams cannot be transported via ordinary residential elevators, requiring hoisting or manual handling, resulting in extremely high transportation costs for high-rise buildings. While there are assembled roller blind bottom beams in existing technology, their splicing relies solely on a central square tube, easily creating height differences at the joints of the two aluminum sections, affecting aesthetics. Furthermore, to secure the internal square tube, screws are often required on the bottom rod surface, exposing the screw heads and damaging the appearance. Additionally, existing roller blind bottom beams require the roller blind fabric to be inserted from the side, necessitating double the installation length, making them unsuitable for narrow balconies. Therefore, a bottom beam unit and a combined roller blind bottom beam are provided to solve the aforementioned problems. Summary of the Invention

[0003] One of the purposes of this utility model is to provide a bottom beam unit and a combined roller shutter bottom beam, so as to solve the problems of inconvenient transportation and unsightly installation of existing roller shutter bottom beams.

[0004] This utility model relates to a bottom beam unit and a combined roller shutter bottom beam, which can be achieved through the following technical solutions: This utility model provides a bottom beam unit comprising: The bottom beam mechanism is provided with multiple reinforcing cavities and multiple positioning holes; A sealing plate, which is detachably snapped onto one side of the bottom beam mechanism; The fabric locking plate is detachably and snap-fitted into the bottom beam mechanism. The fabric locking plate cooperates with the bottom beam mechanism to limit the locking rod on the roller blind fabric.

[0005] In one embodiment, the bottom beam mechanism includes a bottom beam body and a bottom plate; the bottom beam body is a hollow cavity, and a plurality of reinforcing cavities and a plurality of positioning holes are respectively disposed on the bottom beam body; the bottom plate is detachably snapped onto the inner wall of the bottom beam body, and the sealing plate is detachably snapped onto the bottom plate.

[0006] In one embodiment, a reinforcing cavity and two side reinforcing cavities are respectively disposed through the bottom beam body.

[0007] In one embodiment, the bottom beam body has a first slot on its opposite inner wall; the bottom plate has a second slot on its opposite ends, and the two second slots are detachably engaged with the corresponding first slots.

[0008] In one embodiment, a locking bar groove is provided in the main body of the bottom beam, and the locking cloth buckle plate is detachably connected to one side of the locking bar groove.

[0009] In one embodiment, the base plate has two snap-fit ​​grooves on one end opposite to the sealing plate, and the sealing plate is detachably mounted on the base plate through the two snap-fit ​​grooves.

[0010] In one embodiment, the snap-fit ​​groove is a dovetail snap-fit ​​groove.

[0011] In one embodiment, the sealing plate is provided with a locking strip at each of its opposite ends, and the two locking strips are detachably engaged in the corresponding locking grooves.

[0012] In one embodiment, a fabric guide is provided on the side of the fabric locking plate.

[0013] This utility model provides a combined roller shutter bottom beam comprising multiple bottom beam units arranged sequentially as described in any of the above-mentioned claims.

[0014] Compared with the prior art, the beneficial effects of the bottom beam unit and combined roller shutter bottom beam of this utility model are as follows: This utility model discloses a bottom beam unit and a combined roller shutter bottom beam. It employs a split bottom beam unit, which is then assembled from multiple standardized units to form the roller shutter bottom beam, facilitating assembly. Multiple reinforcing rods are placed within the bottom beam units to enhance the roller shutter bottom beam's bending and torsional energy absorption. Multiple positioning holes are provided on the side of the bottom beam mechanism, with the ends of connecting pins positioned in corresponding holes, ensuring horizontal alignment and seamless splicing between adjacent bottom beam mechanisms. Simultaneously, a detachable and snap-fit ​​sealing plate is attached to the bottom beam mechanism, covering the fixing screws and achieving complete concealment of the screws. This effectively solves the problems of inconvenient transportation and unsightly installation associated with existing roller shutter bottom beams. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a bottom beam unit according to the present invention; Figure 2 This is a side view of a bottom beam unit according to the present invention. Figure 3This is an exploded structural diagram of a bottom beam unit according to the present invention, including a bottom beam mechanism; Figure 4 yes Figure 3 The diagram shows an exploded view of the bottom beam mechanism.

[0017] The diagram indicates the following: 10, bottom beam unit; 11, bottom beam mechanism; 111, bottom beam body; 1111, main reinforcing cavity; 1112, side reinforcing cavity; 1113, positioning hole; 1114, first slot; 1115, locking rod slot; 112, bottom plate; 1121, second slot; 1122, snap-fit ​​slot; 12, sealing plate; 121, locking strip; 13, fabric locking buckle plate; 131, fabric guide. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only one part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-4 As shown, the present invention provides a bottom beam unit 10 comprising a bottom beam mechanism 11, a sealing plate 12, and a fabric locking plate 13. The bottom beam mechanism 11 is a streamlined cavity with multiple reinforcing cavities inside. Reinforcing rods pass sequentially through the corresponding reinforcing cavities on the multiple bottom beam mechanisms 11, thereby assembling the multiple bottom beam mechanisms 11 in series. The sealing plate 12 is detachably snapped onto the lower side of the bottom beam mechanism 11. The fabric locking plate 13 is detachably snapped onto the bottom beam mechanism 11, and cooperates with the bottom beam mechanism 11 to limit the locking rod on one end of the roller blind, thereby connecting the roller blind to the bottom beam unit 10.

[0021] Please see Figures 1-4 As shown, in this embodiment, the bottom beam mechanism 11 includes a bottom beam body 111 and a bottom plate 112; the bottom beam body 111 is a hollow cavity; the bottom plate 112 is detachably snapped onto the opposite inner wall of the bottom beam body 111, and the sealing plate 12 is detachably snapped onto the bottom plate 112.

[0022] Please see Figure 4As shown, specifically, a main reinforcing cavity 1111 and two side reinforcing cavities 1112 are respectively provided through the main reinforcing cavity 1111 of the bottom beam body 111; the large reinforcing square rod passes through the main reinforcing cavity 1111 of the multiple bottom beam mechanisms 11 in sequence, thereby assembling the multiple bottom beam mechanisms 11 in series, and enhancing the bending resistance of the bottom beam mechanism 11 through the large reinforcing square rod; the small reinforcing square rod passes through the corresponding side reinforcing cavity 1112 of the multiple bottom beam mechanisms 11 in sequence, thereby enhancing the torsional resistance of the bottom beam mechanism 11 through the small reinforcing square rod. Through the cooperation of the large reinforcing square rod and the two small reinforcing square rods, the compression resistance of the combined roller shutter bottom beam is enhanced while the multiple bottom beam units 10 are assembled in series. Specifically, multiple positioning holes 1113 are provided on the opposite sides of the bottom beam body 111, and the two ends of the connecting pins are respectively positioned on the two adjacent bottom beam bodies 111, so that the two adjacent bottom beam bodies 111 are horizontally aligned and spliced ​​with zero gaps; the opposite inner walls of the bottom beam body 111 are respectively provided with first slots 1114, and the opposite ends of the bottom plate 112 are respectively engaged and connected in the corresponding first slots 1114, so as to realize the fixed connection between the bottom plate 112 and the bottom beam body 111; the bottom beam body 111 is also provided with a locking rod groove 1115, and the locking cloth buckle plate 13 is detachably connected to one side of the locking rod groove 1115. The locking rod on one end of the roller blind is limited by the cooperation of the locking cloth buckle plate 13 and the locking rod groove 1115, so as to connect the roller blind to the bottom beam unit 10.

[0023] Please see Figure 4 As shown, specifically, the bottom plate 112 is provided with second slots 1121 at its opposite ends, and the two second slots 1121 are detachably engaged with the corresponding first slots 1114, thereby realizing the fixed connection between the bottom plate 112 and the bottom beam body 111; the bottom plate 112 is provided with two snap-fit ​​grooves 1212 at the end opposite to the sealing plate 12, and the sealing plate 12 is detachably mounted on the bottom plate 112 through the two snap-fit ​​grooves 1212. Preferably, the snap-fit ​​grooves 1212 are dovetail grooves.

[0024] Please see Figure 3 As shown, specifically, the sealing plate 12 is a hollow groove, and the sealing strip can be detachably placed in the sealing plate 12. Each of the opposite ends of the sealing plate 12 is provided with a retaining strip 121, which can be detachably engaged in the corresponding retaining groove 1212, thereby achieving a fixed connection between the sealing plate 12 and the base plate 112. Specifically, the side of the fabric locking plate 13 is provided with a guide curtain 131, which allows the roller blind fabric to be drawn vertically along the guide surface, effectively eliminating wrinkles in the roller blind fabric.

[0025] This utility model discloses a combined roller shutter bottom beam comprising multiple bottom beam units 10 arranged sequentially. Large reinforcing square rods pass sequentially through the main reinforcing cavities 1111 on the multiple bottom beam units 10, thereby assembling the multiple bottom beam units 10 in series. Two small reinforcing square rods pass sequentially through the corresponding side reinforcing cavities 1112 on the multiple bottom beam units 10. Through the cooperation of the large reinforcing square rods and the two small reinforcing square rods, the combined roller shutter bottom beam enhances its compressive strength while assembling the multiple bottom beam units 10 in series. At the same time, the two ends of the connecting pins are respectively positioned on two adjacent bottom beam mechanisms 11, so that the multiple bottom beam units 10 are horizontally aligned and seamlessly spliced.

[0026] It should be noted that the assembly process of the combined roller shutter bottom beam of this utility model is as follows: First, the bottom plate 112 is installed on the bottom beam body 111 to assemble the bottom beam mechanism 11. Then, multiple connecting pins are installed into the corresponding positioning holes 1113. The two adjacent bottom beam mechanisms 11 are horizontally aligned using the connecting pins. Then, the large reinforcing square rod and the two small reinforcing square rods are respectively connected through the multiple bottom beam mechanisms 11 arranged in sequence. Through the cooperation of the large reinforcing square rod and the two small reinforcing square rods, the multiple bottom beam mechanisms 11 are assembled in series, which enhances the compressive strength of the combined roller shutter bottom beam. Then, holes are drilled at certain intervals on the bottom plate 112 and self-tapping screws are driven in. The self-tapping screws penetrate the bottom plate 112 and are fixedly connected to the large reinforcing square rod and the small reinforcing square rod in sequence, thereby fixing the large reinforcing square rod and the small reinforcing square rod in the bottom beam mechanism 11, thus eliminating the large reinforcing square rod, The assembly gaps between the small reinforcing square rods and the bottom beam mechanism 11 completely prevent metal impact noise caused by wind vibration and prevent axial detachment at the splice due to tension. Then, the sealing plate 12 is fixedly connected to the dovetail-shaped second slot 1121 on the bottom plate 112. The inverted dovetail slot structure prevents the sealing plate 12 from falling off vertically. At this time, all the self-tapping screws previously driven in are completely covered by the sealing plate 12, thus achieving complete invisibility of the self-tapping screws. The roller blind fabric with the locking rod (such as an aluminum rod) sewn on it is directly placed into the locking rod slot 1115 on the bottom beam body 111. Then, the locking cloth buckle plate 13 is fastened. The hook on the locking cloth buckle plate 13 is engaged with the bottom beam body 111. Through the cooperation of the locking cloth buckle plate 13 and the side wall of the locking rod slot 1115, the locking rod on the roller blind fabric is limited and set in the locking rod slot 1115, thus realizing the connection between the roller blind fabric and the combined roller blind bottom beam.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bottom beam unit, characterized in that, include: The bottom beam mechanism is provided with multiple reinforcing cavities and multiple positioning holes; A sealing plate, which is detachably snapped onto one side of the bottom beam mechanism; The fabric locking plate is detachably and snap-fitted into the bottom beam mechanism. The fabric locking plate cooperates with the bottom beam mechanism to limit the locking rod on the roller blind fabric.

2. The bottom beam unit according to claim 1, characterized in that, The bottom beam mechanism includes a bottom beam body and a bottom plate; the bottom beam body is a hollow cavity, and multiple reinforcing cavities and multiple positioning holes are respectively disposed on the bottom beam body; the bottom plate is detachably snapped onto the inner wall of the bottom beam body, and the sealing plate is detachably snapped onto the bottom plate.

3. A bottom beam unit according to claim 2, characterized in that, One reinforcing cavity and two side reinforcing cavities are respectively installed through the main body of the bottom beam.

4. A bottom beam unit according to claim 2, characterized in that, The bottom beam body has a first slot on its inner wall and a second slot on its two ends. The two second slots are detachably engaged with the corresponding first slots.

5. A bottom beam unit according to claim 2, characterized in that, The bottom beam body is provided with a locking rod groove, and the locking cloth buckle plate is detachably connected to one side of the locking rod groove.

6. A bottom beam unit according to claim 2, characterized in that, Two snap-fit ​​grooves are provided on one end of the base plate opposite to the sealing plate, and the sealing plate is detachably mounted on the base plate through the two snap-fit ​​grooves.

7. A bottom beam unit according to claim 6, characterized in that, The snap-fit ​​groove is a dovetail snap-fit ​​groove.

8. A bottom beam unit according to claim 6, characterized in that, The sealing plate has locking strips at its opposite ends, and the two locking strips are detachably engaged in the corresponding locking slots.

9. A bottom beam unit according to claim 1, characterized in that, The side of the fabric fastener has a fabric guide.

10. A combined roller shutter bottom beam, characterized in that, Includes the bottom beam unit as described in any one of claims 1-9.

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