A curtain bottom rail and screen curtain

Abstract

The utility model discloses a curtain bottom beam and screen curtain, and its technical scheme main points are including casing and the end cap of detachable connection in the both ends of casing, and the casing includes main casing and auxiliary casing, and the bottom end between auxiliary casing and main casing is swingedly connected, realizes rotation through the auxiliary casing and main casing between, when not installing end cap, can enlarge the clearance through the rotation auxiliary casing, thereby the putting of nylon stick and curtain cloth is convenient, and after the installation of end cap, can limit the positional relationship between auxiliary casing and main casing, makes the clearance certain, prevents the nylon stick and part curtain cloth from the clearance place and separates.

Description

Technical Field

[0001] This utility model relates to the field of curtain technology, and more specifically to a curtain bottom beam and a screen curtain. Background Technology

[0002] In an electric screen curtain, there are multiple parallel curtain slats. Typically, a motor drives one curtain slat at the beginning to move, which in turn drives the adjacent curtain slat to move. There is at least partial overlap between the two adjacent curtain slats, thereby achieving the light-blocking effect. A bottom beam is installed at the bottom of the curtain to ensure the verticality of the curtain slats and prevent the curtain slats from fluttering. A conventional bottom beam includes a cavity with an upward opening. A nylon rod is installed in the cavity. One end of the curtain is fixed in the cavity and wraps around the bottom beam once before passing around the nylon rod and extending upward from the opening. In the aforementioned bottom beam structure, the nylon rods need to be pressed into the cavity from top to bottom simultaneously through the opening using external force, making installation rather complicated. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a curtain bottom beam and screen curtain that facilitates the installation of nylon rods.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a curtain bottom beam, comprising a housing and end caps detachably connected to both ends of the housing, the housing comprising a main housing and a secondary housing, the bottom end of the secondary housing being movably connected to the main housing, a gap being formed between the top end of the secondary housing and the main housing, and a first receiving cavity communicating with the gap being formed between the main housing and the secondary housing.

[0005] As a further improvement of this utility model, a circular hole with a notch is formed on the side of the main shell facing the sub-shell, and a cylinder is formed at the bottom end of the sub-shell, the cylinder being inserted into the circular hole.

[0006] As a further improvement of this utility model, a first slot is formed on one of the outer or inner sides of the main shell.

[0007] As a further improvement of this utility model, a second receiving cavity is formed inside the main shell, and an opening is formed at the second receiving cavity.

[0008] As a further improvement of this utility model, the opening is formed between the main shell and the secondary shell.

[0009] As a further improvement of this utility model, a second slot is formed in the second receiving cavity.

[0010] As a further improvement of this utility model, two opposing positioning members are formed on the side wall of the second receiving cavity, and the second slot is formed between the two positioning members.

[0011] As a further improvement of this utility model, a limiting cavity is formed at the bottom of the second receiving cavity, and a counterweight is installed in the limiting cavity.

[0012] As a further improvement of this utility model, magnets are adsorbed at both ends of the counterweight.

[0013] A screen curtain, including the aforementioned curtain bottom beam.

[0014] The beneficial effects of this utility model are as follows: By enabling rotation between the sub-shell and the main shell, the gap can be widened by rotating the sub-shell when the end cap is not installed, which facilitates the insertion of nylon rods and curtain fabric. After the end cap is installed, the positional relationship between the sub-shell and the main shell can be restricted, so that the gap is constant and prevents the nylon rods and part of the curtain fabric from detaching from the gap. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation of the bottom beam and the curtain fabric of this utility model; Figure 2 This is a utility model Figure 1 A sectional view; Figure 3 This is a schematic diagram of the shell structure in this utility model; Figure 4 This is a schematic diagram of the main shell structure in this utility model; Figure 5 This is a schematic diagram of the secondary shell in this utility model; Figure 6 This is a schematic diagram of the structure of the end cap of this utility model.

[0016] Reference numerals: 1. Shell; 11. Main shell; 111. Circular hole; 12. Secondary shell; 121. Cylindrical; 13. Gap; 2. End cap; 3. First receiving cavity; 4. Second receiving cavity; 41. Opening; 42. Second slot; 43. Positioning element; 44. Limiting cavity; 5. Counterweight. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Example 1, refer to Figures 1 to 6 As shown, a curtain bottom beam in this embodiment includes a housing 1 and end caps 2 detachably connected to both ends of the housing 1. The end caps 2 are connected to the housing 1 by a plug-in connection, which facilitates the assembly and disassembly of the end caps 2 and the housing 1. The housing 1 includes a main housing 11 and a secondary housing 12. The bottom end of the secondary housing 12 is movably connected to the main housing 11, and a gap 13 is formed between the top end of the secondary housing 12 and the main housing 11. When the end cap 2 is not installed, the secondary housing 12 can be rotated to increase the gap 13, which facilitates the insertion of nylon rods and curtain fabric. After the end cap 2 is installed, the end cap 2 can restrict the rotation of the sub-shell 12, thereby preventing the nylon rod and part of the curtain from detaching from the gap 13; A first receiving cavity 3 is formed between the main shell 11 and the secondary shell 12, which communicates with the gap 13. The first receiving cavity 3 is used to accommodate the nylon rod and part of the curtain fabric. By rotating the sub-shell 12 and the main shell 11, the gap 13 can be widened when the end cap 2 is not installed, thus facilitating the insertion of nylon rods and curtain fabric. After the end cap 2 is installed, the positional relationship between the sub-shell 12 and the main shell 11 can be restricted, so that the gap 13 is constant, preventing the nylon rods and part of the curtain fabric from detaching from the gap 13.

[0019] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a circular hole 111 with a notch is formed on the side of the main shell 11 facing the sub-shell 12. A horizontal plate is integrally formed on the side of the main shell 11 facing the sub-shell 12. An arc-shaped part is integrally formed on the end of the horizontal plate near the sub-shell 12. The circular hole 111 is formed on the arc-shaped part. The portion of the curved part, excluding the notch, is at least larger than a semicircle, thereby preventing the cylinder 121 from dislodging from the circular hole 111; A cylinder 121 is formed at the bottom of the sub-shell 12. The cylinder 121 is inserted into the circular hole 111. The cylinder 121 is inserted into the circular hole 111 along the length direction of the main shell 11, which can realize the rotation between the sub-shell 12 and the main shell 11.

[0020] One of the outer or inner sides of the main shell 11 forms a first slot. A positioning plate is fixedly connected to the bottom of the curtain. The positioning plate is inserted into the first slot to fix the bottom of the curtain.

[0021] Example 2, refer to Figures 1 to 6 As shown, a second receiving cavity 4 is formed inside the main shell 11, and an opening 41 is formed at the second receiving cavity 4; The difference from Embodiment 1 is that this embodiment has a second receiving cavity 4. Preferably, the second receiving cavity 4 is located below the first receiving cavity 3, thereby reducing the width of the shell 1 in the lateral direction. The opening 41 allows the bottom end of the curtain to extend along the main shell 11, extend into the second receiving cavity 4 through the opening 41, and be fixed in the second receiving cavity 4, thereby reducing the exposed surface of the main shell 11.

[0022] Reference Figure 2 , Figure 3 As shown, the opening 41 is formed between the main shell 11 and the secondary shell 12, allowing the bottom end of the curtain to go around the main shell 11 and enter the opening 41, thus wrapping the entire exposed surface of the main shell 11.

[0023] A second slot 42 is formed in the second receiving cavity 4. The bottom end of the curtain is inserted into the second slot 42 through the positioning plate, and the second slot 42 is located in the second receiving cavity 4 to prevent the positioning plate from being exposed. Preferably, the second slot 42 is located on the inner wall of the main shell 11 near the opening 41.

[0024] Reference Figure 2 , Figure 3 and Figure 4 As shown, two opposing positioning members 43 are formed on the side wall of the second receiving cavity 4, and a second slot 42 is formed between the two positioning members 43. The upper positioning member 43 is bent downward and the lower positioning member 43 is bent upward. The minimum distance between the ends of the two positioning members 43 is greater than the length of the positioning plate, thereby preventing the positioning plate from detaching from the second slot 42.

[0025] Reference Figure 2 , Figure 3 and Figure 4 As shown, a limiting cavity 44 is formed at the bottom of the second receiving cavity 4. Preferably, an arc-shaped segment is formed on the side wall of the second receiving cavity 4, and the limiting cavity 44 is formed between the arc-shaped segment and the positioning member 43 located below, thereby reducing the design of the arc-shaped segment. Alternatively, an arc-shaped segment can be formed between the two opposite side walls of the second receiving cavity 4, and the limiting cavity 44 is formed between the two arc-shaped segments; A counterweight 5 is installed inside the limiting cavity 44 to increase the weight of the bottom beam, thereby improving the verticality of the curtain.

[0026] The counterweight 5 has magnets adsorbed at both ends. When two adjacent shells 1 are close to each other, they will be attracted to each other by the magnets, thus improving the tightness between multiple curtains.

[0027] Reference Figure 6As shown, a first limiting member is formed on the inner side of the end cap 2. There are four first limiting members, which correspond to the four corners of the first cavity, thereby forming a locking position. A second limiting member is also formed on the inner side of the end cap 2. The second limiting member corresponds to the bottom of the limiting cavity 44 and forms a limit.

[0028] A screen curtain, including the aforementioned curtain bottom beam.

[0029] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A curtain bottom beam, characterized in that: The device includes a housing (1) and end caps (2) detachably connected to both ends of the housing (1). The housing (1) includes a main shell (11) and a secondary shell (12). The bottom end of the secondary shell (12) is movably connected to the main shell (11). A gap (13) is formed between the top end of the secondary shell (12) and the main shell (11). A first receiving cavity (3) communicating with the gap (13) is formed between the main shell (11) and the secondary shell (12).

2. A curtain bottom beam according to claim 1, characterized in that: The main shell (11) has a notched circular hole (111) on the side facing the sub-shell (12), and a cylinder (121) is formed at the bottom of the sub-shell (12), which is inserted into the circular hole (111).

3. A curtain bottom beam according to claim 1, characterized in that: A first slot is formed on one of the outer or inner sides of the main shell (11).

4. A curtain bottom beam according to claim 1, characterized in that: A second receiving cavity (4) is formed inside the main shell (11), and an opening (41) is formed at the second receiving cavity (4).

5. A curtain bottom beam according to claim 4, characterized in that: The opening (41) is formed between the main shell (11) and the secondary shell (12).

6. A curtain bottom beam according to claim 4, characterized in that: A second slot (42) is formed inside the second receiving cavity (4).

7. A curtain bottom beam according to claim 6, characterized in that: Two opposing positioning members (43) are formed on the side wall of the second receiving cavity (4), and the second slot (42) is formed between the two positioning members (43).

8. A curtain bottom beam according to claim 4, characterized in that: The bottom of the second receiving cavity (4) forms a limiting cavity (44), and a counterweight (5) is installed in the limiting cavity (44).

9. A curtain bottom beam according to claim 8, characterized in that: The counterweight (5) has magnets adsorbed at both ends.

10. A screen curtain, characterized in that: Includes a curtain bottom beam as described in any one of claims 1 to 9.

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