Sunshade roller shutter lower beam structure and sunshade roller shutter thereof

Abstract

The utility model provides a sunshade roller shutter lower beam structure and sunshade roller shutter, relate to roller shutter technical field, including lower beam body, the upper end of lower beam body is set up with first opening groove along the length direction, be equipped with first cavity and second cavity in lower beam body, first cavity and second cavity along the length direction of lower beam body through lower beam body, second cavity is in proper order with first cavity and first opening groove intercommunication, the intercommunication department of second cavity with first cavity is equipped with the limiting portion for fixing the lower end of roller shutter fabric in second cavity, one side wall of lower beam body lower part is equipped with recess along the length direction through, be installed with the anti -collision strip in recess, the both ends of lower beam body can detachably install the closing piece for covering all through -going mouth.

Description

Technical Field

[0001] This utility model relates to the field of roller blind technology, specifically to a lower beam structure for a sunshade roller blind and the sunshade roller blind itself. Background Technology

[0002] Roller blinds are a type of window covering suitable for various locations, such as commercial office buildings, hotels, restaurants, and residences, and are especially suitable for large glass curtain walls. The upper end of a roller blind typically has a roller tube through which the blind fabric is rolled into a cylinder. The fabric can be manually or automatically raised and lowered using a pull cord or a transmission mechanism. The lower end of the roller blind has a lower beam, whose main function is to tension and guide the fabric. Currently, common lower beams are made of aluminum or plastic, with a flat or rectangular cross-section, resulting in a lighter overall weight.

[0003] As a sunshade product, roller blinds are typically installed near windows. When the window is open, changes in external airflow can cause the blind fabric to sway. If the lower beam is made of lightweight material and lacks sufficient weight, it may struggle to stabilize quickly, resulting in swaying with the wind. This swaying can easily cause the lower beam to come into contact with or collide with adjacent window glass. Given that most current lower beams are made of rigid, one-piece molding, their contact points lack specialized energy-absorbing or cushioning structures, allowing impact energy to be directly transferred to the glass, potentially leading to breakage.

[0004] Therefore, this utility model proposes a lower beam structure for a sunshade roller blind and the sunshade roller blind itself. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a lower beam structure for a sunshade roller blind and the sunshade roller blind itself, which can improve wind resistance stability and safety of use, and avoid damage to components.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A sunshade roller blind lower beam structure includes a lower beam body. The upper end of the lower beam body has a first opening groove along its length. The lower beam body has a first cavity and a second cavity. The first cavity and the second cavity extend through the lower beam body along its length. The second cavity is sequentially connected to the first cavity and the first opening groove. A limiting part is provided at the connection between the second cavity and the first cavity for fixing the lower end of the roller blind fabric in the second cavity.

[0008] A groove is provided along the length of one side wall of the lower part of the lower beam body, and an anti-collision strip is installed in the groove;

[0009] Both ends of the lower beam body are detachably fitted with sealing components to cover all through openings.

[0010] Preferably, the anti-collision strip includes an integrally formed anti-collision part and a mounting part. The anti-collision part is annular and extends along the length direction of the lower beam body, and is inserted into the groove through the mounting part.

[0011] Preferably, the mounting portion is T-shaped and extends along the length of the groove.

[0012] Preferably, the groove has an inverted T-shaped cross-section and is inserted into the mounting portion.

[0013] Preferably, the anti-collision strip is made of a flexible material with elasticity.

[0014] Preferably, the limiting part is a pair of symmetrically arranged arc segments, both arc segments bend and extend from the second cavity to the first cavity, and a connecting channel for connecting the first cavity and the second cavity is formed between the two arc segments, and a fixed end is formed on one side of the two arc segments located in the second cavity to be fixedly connected to the lower end of the roller blind fabric.

[0015] Preferably, the connecting channel is positioned directly opposite the first opening slot.

[0016] Preferably, the lower part and the lower end of the lower beam body are respectively provided with a third cavity and a second opening groove along the length direction, and the sealing member is provided with at least three insertion parts, which are respectively inserted into the first cavity, the third cavity and the second opening groove.

[0017] Preferably, the insertion part inserted into the second opening groove is provided with a screw hole and is fixed in the second opening groove by bolt connection.

[0018] A sunshade roller blind includes a sunshade roller blind lower beam structure, a roller blind drive device, and a roller blind fabric. The roller blind drive device is connected to the upper end of the roller blind fabric, and the sunshade roller blind lower beam structure is disposed at the lower end of the roller blind fabric.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The lower beam structure of the sunshade roller blind features a specially designed through groove on the side wall of the lower beam body with an anti-collision strip installed. This not only effectively increases the overall weight of the lower beam, allowing it to maintain a stable posture and suppress swaying during airflow changes, but also, when swaying occurs, the anti-collision strip protruding from the side wall acts as the first contact barrier, buffering the impact force through its own deformation. This changes the previous situation where the rigid material of the lower beam directly impacted the glass, thus significantly reducing the risk of glass breakage. At the same time, the first and second cavities coaxially connected inside the lower beam body, together with the limiting part located at their connection point, provide a stable and easy-to-install fixed channel for the lower end of the roller blind fabric, ensuring the reliability of the fabric connection. Combined with the detachable sealing parts, this makes cleaning and maintenance of the internal cavities and replacement of the anti-collision strips more convenient. The overall structure improves wind resistance and installation reliability while also ensuring durability and convenience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal structure of the lower beam structure of a sunshade roller blind according to this utility model;

[0023] Figure 2 This is a structural diagram of the sealing component;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of a sunshade roller blind;

[0025] Reference numerals in the attached drawings: 1-Lower beam body; 101-First opening groove; 102-Groove; 103-First cavity; 104-Second cavity; 105-Limiting part; 106-Third cavity; 107-Second opening groove; 2-Anti-collision strip; 201-Anti-collision part; 202-Mounting part; 3-Sealing part; 301-Plug-in part; 302-Screw hole; 4-Roller blind drive device; 5-Roller blind fabric. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] This embodiment proposes a lower beam structure for a sunshade roller blind, such as... Figure 1 and Figure 2 As shown, the device includes a lower beam body 1. The upper end of the lower beam body 1 has a first opening groove 101 along its length. Inside the lower beam body 1 are a first cavity 103 and a second cavity 104 that coaxially connect to each other. The second cavity 104 communicates sequentially with the first cavity 103 and the first opening groove 101, forming a channel for the roller blind fabric to descend. At the connection point between the second cavity 104 and the first cavity 103, a unique limiting part 105 is provided. This structure is used to grip and fix the lower end of the roller blind fabric 5, ensuring its stable tension.

[0030] To address the issues of existing lightweight lower beams being prone to swaying and impacting glass, this design incorporates a groove 102 extending along the length of the side wall at the lower part of the lower beam body 1, with an anti-collision strip 2 embedded within this groove 102. This design, by embedding the high-density anti-collision strip 2, specifically increases the weight of the lower part of the lower beam, thereby improving overall wind resistance stability.

[0031] Regarding the specific structure of the anti-collision strip 2, it is integrally formed by the anti-collision part 201 and the mounting part 202. The mounting part 202 is T-shaped and extends along the length direction of the groove 102; correspondingly, the cross-section of the groove 102 is inverted T-shaped. The two are connected by a plug-in fit to achieve a tight socket connection, ensuring that the anti-collision strip 2 is firmly installed and will not loosen during daily use. The anti-collision part 201 is designed as a ring and extends along the length direction of the lower beam body 1, forming a protruding buffer contact surface. The anti-collision strip 2 is made of a flexible material with elasticity (such as rubber or thermoplastic elastomer), which allows it to effectively absorb energy through deformation when impacted, thus protecting the glass.

[0032] In this embodiment, the limiting part 105 is specifically a pair of symmetrically arranged arc segments. Both arc segments extend from the second cavity 104 toward the first cavity 103, forming a connecting channel between them. This channel is positioned directly opposite the first opening slot 101 to facilitate the introduction of fabric. The side of the two arc segments extending into the second cavity 104 constitutes an expanded fixing end, providing ample and reliable space for the insertion and fixing of the lower end of the roller blind fabric 5.

[0033] To facilitate internal cleaning and component maintenance, both ends of the lower beam body 1 are sealed with detachable sealing members 3. Specifically, the lower part and lower end of the lower beam body 1 are respectively connected by a third cavity 106 and a second opening groove 107. The sealing member 3 is provided with at least three insertion parts 301, which can be simultaneously inserted into the first cavity 103, the third cavity 106, and the second opening groove 107 for precise positioning. To strengthen the connection, the insertion part 301 inserted into the second opening groove 107 is provided with a screw hole and is locked and fixed with bolts, effectively preventing the sealing member 3 from falling off due to long-term vibration.

[0034] This embodiment also proposes a sunshade roller blind, such as Figure 3 As shown. This sunshade roller blind includes any of the aforementioned sunshade roller blind lower beam structures, a roller blind drive device 4, and roller blind fabric 5. The roller blind drive device 4 is connected to the upper end of the roller blind fabric 5 to control its opening and closing; the sunshade roller blind lower beam structure is reliably set at the lower end of the roller blind fabric 5, providing it with stable tension, wind-resistant counterweight, and impact cushioning. In addition, the lower end of the roller blind fabric 5 is usually provided with a silicone rod, and the roller blind fabric 5 is covered in the silicone rod, which abuts against the arc segment. That is to say, the silicone rod will be used to engage the roller blind fabric 5 in an expanded fixed end formed by the arc segment. The roller blind fabric 5 passes through the connecting channel and the first opening slot and connects to the roller blind drive device. The silicone rod can enter and exit with both ends of the lower beam body for easy replacement and maintenance.

[0035] Working principle: During installation, the lower end of the roller blind fabric 5 passes sequentially through the first opening slot 101 and the connecting channel formed by the limiting part 105, and is finally fixed in the second cavity 104. During operation, the roller blind drive device 4 retracts and extends the fabric, and the lower beam body 1 moves up and down accordingly. When encountering strong winds, the additional counterweight provided by the built-in anti-collision strip 2 effectively suppresses the swing of the lower beam; if the lower beam still hits the window glass due to strong winds, the flexible anti-collision part 201 will make contact with the glass first and absorb most of the impact energy through its own deformation, thereby greatly reducing the risk of glass breakage.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lower beam structure for a sunshade roller blind, characterized in that: The device includes a lower beam body (1), the upper end of which is provided with a first opening groove (101) along the length direction. The lower beam body (1) is provided with a first cavity (103) and a second cavity (104). The first cavity (103) and the second cavity (104) penetrate the lower beam body (1) along the length direction. The second cavity (104) is connected to the first cavity (103) and the first opening groove (101) in sequence. A limiting part (105) for fixing the lower end of the roller blind fabric (5) in the second cavity (104) is provided at the connection between the second cavity (104) and the first cavity (103). The lower beam body (1) has a groove (102) extending through one side wall along its length, and a collision protection strip (2) is installed in the groove (102); The lower beam body (1) is detachably equipped with sealing parts (3) at both ends to cover all through openings.

2. The lower beam structure of a sunshade roller blind according to claim 1, characterized in that: The anti-collision strip (2) includes an integrally formed anti-collision part (201) and a mounting part (202). The anti-collision part (201) extends in a circular shape along the length direction of the lower beam body (1) and is connected to the groove (102) by the mounting part (202).

3. The lower beam structure of a sunshade roller blind according to claim 2, characterized in that: The mounting portion (202) is T-shaped and extends along the length of the groove (102).

4. The lower beam structure of a sunshade roller blind according to claim 3, characterized in that: The groove (102) has an inverted T-shaped cross section and is inserted into the mounting part (202).

5. The lower beam structure of a sunshade roller blind according to claim 2, characterized in that: The anti-collision strip (2) is made of a flexible material with elasticity.

6. The lower beam structure of a sunshade roller blind according to claim 1, characterized in that: The limiting part (105) is a pair of symmetrically arranged arc segments. Both arc segments extend from the second cavity (104) to the first cavity (103) and a connecting channel is formed between the two arc segments to connect the first cavity (103) and the second cavity (104). The side of the two arc segments located in the second cavity (104) forms a fixed end that is fixedly connected to the lower end of the roller blind fabric (5).

7. The lower beam structure of a sunshade roller blind according to claim 6, characterized in that: The connecting channel is positioned directly opposite the first opening slot (101).

8. The lower beam structure of a sunshade roller blind according to claim 1, characterized in that: The lower part and the lower end of the lower beam body (1) are respectively provided with a third cavity (106) and a second opening groove (107) along the length direction. The sealing member (3) is provided with at least three insertion parts (301), which are respectively inserted into the first cavity (103), the third cavity (106) and the second opening groove (107).

9. The lower beam structure of a sunshade roller blind according to claim 8, characterized in that: The insertion part (301) inserted into the second opening groove (107) is provided with a screw hole (302) and is fixed in the second opening groove (107) by bolt connection.

10. A sunshade roller blind, characterized in that: The sunshade roller blind lower beam structure includes any one of claims 1 to 9, and further includes a roller blind drive device (4) and a roller blind fabric (5), wherein the roller blind drive device (4) is connected to the upper end of the roller blind fabric (5), and the sunshade roller blind lower beam structure is disposed at the lower end of the roller blind fabric (5).

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