Curtain uniform-distance unfolding structure for automatic curtain

Abstract

The utility model discloses a curtain uniform-distance unfolding structure for an automatic curtain, and belongs to the technical field of automatic curtains. Comprising a protective cover and two groups of shear fork frames, each group of shear fork frame is formed by sequentially hinging a plurality of shear fork rods, the two groups of shear fork frames are collinear and symmetrically mounted in the protective cover, and a driving mechanism capable of driving the shear fork frames to contract and stretch is arranged in the protective cover; a plurality of hinge joint shafts which are arranged in the middle of the shear fork frame and are linearly distributed are rotationally connected to a hook seat, and hooks are arranged on the hook seat and used for hanging curtain cloth; according to the curtain uniform-distance unfolding structure for the automatic curtain, the distance between the hooks can be increased and decreased synchronously, and the situation that curtain cloth is wrinkled and blocked due to uneven stress when the curtain cloth is unfolded and folded is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of automatic curtain technology, and in particular relates to a curtain uniformly spaced unfolding structure for automatic curtains. Background Technology

[0002] Traditional automatic curtains often simply move the curtain rod via a motor to unfold the curtain fabric when they are opened. However, the hooks used to hang the curtains are usually set at fixed intervals. When the curtains are opened or closed, the distance between the hooks cannot be adjusted synchronously, which can easily cause uneven stress on the curtain fabric, resulting in wrinkles, jamming, or even damage to the curtain track. This affects the lifespan and appearance of the curtains and fails to meet people's demand for high-quality automatic curtains. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an automatic curtain opening structure with uniform spacing, which can synchronously increase or decrease the distance between hooks and avoid wrinkles and jamming of the curtain fabric due to uneven force when it is extended and retracted.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic curtain uniformly unfolding structure, including a protective cover and two sets of scissor frames, each consisting of several scissor rods connected in sequence. The two sets of scissor frames are collinear and symmetrically installed inside the protective cover. The protective cover is provided with a drive mechanism that can drive the scissor frames to retract and extend.

[0005] Among them, several hinge shafts arranged linearly in the middle of the scissor lift are rotatably connected to the hook seat, and the hook seat is provided with hooks for hanging curtain fabric.

[0006] Optionally, the drive mechanism includes a bidirectional transmission screw arranged along the retraction and extension direction of the scissor lift and a first servo motor capable of driving the bidirectional transmission screw to rotate forward and backward. The bidirectional transmission screw is threaded with two transmission nut seats that can move synchronously in opposite directions or in opposite directions.

[0007] The two transmission nut seats are rotatably connected to the hinge shafts on the two scissor lifts, and the hinge shaft on any one scissor lift that is farthest from the other scissor lift is hinged to the protective cover.

[0008] Optionally, the drive mechanism includes several motor mounts slidably connected to the protective cover along the retraction and extension direction of the scissor lift. A second servo motor is provided on the motor mount, and the output end of the second servo motor is engaged with a rack provided in the protective cover.

[0009] Among them, several of the motor mounts are respectively connected to the hinge shafts located at the beginning and end of the scissor lift.

[0010] Optionally, several of the hook seats are slidably connected to the protective cover via linear guide rails.

[0011] Optionally, the motor mount is slidably connected to the protective cover via several sets of linear guide rails.

[0012] Optionally, the scissor lifts are hinged to each other via silent bearings, and the hinge shaft is connected to the silent bearing.

[0013] Optionally, the hinge shaft is connected to a bearing seat on the hook seat.

[0014] Optionally, the hook is built into the protective cover, and the bottom of the protective cover is provided with a through groove corresponding to the hook, through which the curtain fabric can pass and be hung on the hook.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: by setting several hook seats on the hinge shaft in the middle of the scissor lift, based on the special mechanical structure of the scissor lift, several hinge shafts located in the middle of the scissor lift can move along the direction of a certain fixed straight line. That is, when the drive mechanism controls the scissor lift to retract and extend, the distance between several hook seats can also increase or decrease synchronously, thereby realizing the synchronous adjustment of the distance between hooks. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the evenly spaced curtain unfolding structure for automatic curtains in a preferred embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the automatic curtain evenly spaced unfolding structure in a preferred embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the scissor lift mechanism in a preferred embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the drive mechanism in a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the drive mechanism in the preferred embodiment of the present invention;

[0022] Among them, 1. Protective cover; 101. Through groove; 2. Scissor lift frame; 201. Scissor lift rod; 202. Hinge shaft; 3. Hook seat; 301. Hook; 4. Bidirectional transmission screw; 5. First servo motor; 6. Transmission nut seat; 7. Motor seat; 8. Second servo motor; 9. Rack; 10. Bearing seat. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Example 1

[0025] like Figures 1-4 As shown, an automatic curtain with uniformly spaced curtain opening structure includes a protective cover 1 and two sets of scissor frames 2, each consisting of several scissor rods 201 hinged sequentially. The two sets of scissor frames 2 are collinear and symmetrically installed inside the protective cover 1. The protective cover 1 is provided with a drive mechanism that can drive the scissor frames 2 to retract and extend. Several hinge shafts 202 arranged linearly in the middle of the scissor frames 2 are rotatably connected to hook seats 3. Hooks 301 are provided on the hook seats 3 for hanging curtain fabric.

[0026] Specifically, by setting several hook seats 3 on the hinge shaft 202 in the middle of the scissor lift 2, based on the special mechanical structure of the scissor lift 2, the hinge shaft 202 in the middle of the scissor lift 2 can move along a fixed straight line. That is, when the drive mechanism controls the scissor lift 2 to retract and extend, the distance between the hook seats 3 can also increase or decrease synchronously, thereby realizing the synchronous adjustment of the distance between the hooks 301. In other words, when the curtain is hung on the hooks 301, the curtain uniform opening structure in this technical solution can ensure, through the mechanical structural characteristics of the scissor lift 2, that when the hooks 301 drive the curtain to open or close, the forces on various parts of the curtain are coordinated and consistent, which can effectively avoid wrinkles and twists in the curtain and make the opening and closing of the curtain smooth and natural.

[0027] Furthermore, such as Figures 2-4 As shown, the drive mechanism includes a bidirectional transmission screw 4 arranged along the retraction and extension direction of the scissor lift 2, and a first servo motor 5 capable of driving the bidirectional transmission screw 4 to rotate forward and backward. Two transmission nut seats 6, capable of synchronously moving in opposite directions, are threaded onto the bidirectional transmission screw 4. The two transmission nut seats 6 are rotatably connected to hinge shafts 202 on the two scissor lifts 2, and the hinge shaft 202 furthest from the other scissor lift 2 on any one scissor lift 2 is hinged to the protective cover 1. Specifically, the central axis of the hinge shaft 202 is perpendicular to the centerline axis of the bidirectional transmission screw 4. The bidirectional transmission screw 4, transmission nut seats 6, and first servo motor 5 are all existing technologies. The bidirectional transmission screw 4 has a first threaded portion and a second threaded portion with opposite thread directions symmetrically arranged along its middle section, and the two transmission nut seats 6 are threaded onto the first threaded portion and the second threaded portion of the bidirectional transmission screw 4, respectively. This ensures that when the first servo motor 5 drives the bidirectional transmission screw 4 to rotate, the two transmission nut seats 6 can drive the two scissor lifts 2 to retract or extend synchronously.

[0028] In this technical solution, the screw drive method used in the above-mentioned drive mechanism can effectively increase the synchronization of the retraction and extension of the two scissor arms 2, and the structure is relatively simple and can be accommodated in a small protective cover 1. It can effectively reduce the volume of the curtain's uniform opening structure and is more suitable for environments such as homes and classrooms.

[0029] The above, such as Figure 2 As shown, several hook seats 3 are slidably connected to the protective cover 1 through linear guide rails. Specifically, the linear guide rail consists of a guide rail and a slider. The guide rail can be installed inside the protective cover 1, the slider is slidably connected to the guide rail, and the hook seat 3 can be installed on the slider, thereby ensuring the linear movement of the protective cover 1 and ensuring the stability of the movement of the hook seat 3, preventing jamming when the curtain is unfolded or closed.

[0030] As described above, the scissor lift 201 is hinged to the scissor lift 201 via a silent bearing, and the hinge shaft 202 is connected to the silent bearing. The silent bearing is existing technology, and using a silent bearing to hinge the scissor lift 201 to the scissor lift 201 increases the smoothness of the scissor lift 2 during retraction and extension, while also reducing noise generation.

[0031] Furthermore, the hinge shaft 202 is connected to the bearing seat 10 on the hook seat 3. The bearing seat 10 can cooperate with the silent bearing to reduce noise and increase the service life of the silent bearing.

[0032] In this embodiment, the hook 301 is built into the protective cover 1, and the bottom of the protective cover 1 is provided with a through groove 101 corresponding to the hook 301. The curtain fabric can pass through the through groove 101 and be hung on the hook 301. Since the hook 301 is built into the protective cover 1, it is completely invisible from the outside, making the part of the curtain fabric that is exposed appear more concise and neat. At the same time, compared with curtains with traditional exposed hooks 301, this design can prevent the hook 301 from appearing abruptly in the field of vision, thereby improving the aesthetics of the entire window area and even the room, making the home decoration more refined. Example 2

[0033] like Figure 2 , Figure 3 , Figure 5 As shown, the difference between this embodiment and Embodiment 1 lies in the change of the drive mechanism. Specifically, the drive mechanism includes several motor mounts 7 slidably connected within the protective cover 1 along the contraction and extension directions of the scissor lift 2. A second servo motor 8 is mounted on each motor mount 7, and the output end of the second servo motor 8 engages with a rack 9 located within the protective cover 1. Specifically, in this embodiment, the second servo motor 8 can drive the motor mounts 7 to move along the contraction and extension directions of the scissor lift 2 by engaging with the rack 9. Furthermore, the several motor mounts 7 are respectively connected to hinge shafts 202 located at both ends of the scissor lift 2, meaning the scissor lift 2 can contract or extend under the drive of the second servo motor 8, and the entire scissor lift 2 can also move as a whole under the drive of the second servo motor 8, thereby meeting different usage requirements.

[0034] Furthermore, such as Figure 5 As shown, the motor base 7 is slidably connected to the protective cover 1 through several sets of linear guide rails to increase the linear motion accuracy and stability of the motor base 7.

[0035] Working principle: The curtain fabric is hung on hooks 301, and several hook seats 3 are set on the hinge shaft 202 in the middle of the scissor frame 2, based on the special mechanical structure of the scissor frame 2. When the first servo motor 5 drives the bidirectional transmission screw 4 to rotate, the two transmission nut seats 6 can drive the two scissor frames 2 to retract or extend synchronously, and the distance between two adjacent hooks 301 can also increase or decrease synchronously, so that the force on various parts of the curtain fabric is coordinated and consistent, which can effectively prevent wrinkles and twists in the curtain fabric, and make the opening and closing of the curtain smooth and natural.

[0036] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A curtain evenly spaced unfolding structure for automatic curtains, characterized in that: It includes a protective cover (1) and two sets of scissor frames (2) that are each made up of a number of scissor bars (201) connected in sequence. The two sets of scissor frames (2) are collinear and symmetrically installed inside the protective cover (1). The protective cover (1) is provided with a drive mechanism that can drive the scissor frames (2) to retract and extend. Among them, several hinge shafts (202) arranged linearly in the middle of the scissor bracket (2) are rotatably connected to the hook seat (3), and the hook seat (3) is provided with a hook (301), which is used to hang the curtain fabric.

2. The automatic curtain evenly spaced unfolding structure according to claim 1, characterized in that: The drive mechanism includes a bidirectional transmission screw (4) arranged along the retraction and extension direction of the scissor lift (2) and a first servo motor (5) capable of driving the bidirectional transmission screw (4) to rotate forward and backward. The bidirectional transmission screw (4) is threaded with two transmission nut seats (6) that can move synchronously in opposite directions or in opposite directions. Among them, the two transmission nut seats (6) are rotatably connected to the hinge shafts (202) on the two scissor lifts (2), and the hinge shaft (202) on any one scissor lift (2) that is farthest from the other scissor lift (2) is hinged to the protective cover (1).

3. The automatic curtain evenly spaced unfolding structure according to claim 1, characterized in that: The drive mechanism includes several motor mounts (7) that are slidably connected to the protective cover (1) along the contraction and extension direction of the scissor lift (2). A second servo motor (8) is provided on the motor mount (7), and the output end of the second servo motor (8) is engaged with a rack (9) provided in the protective cover (1). Among them, several of the motor mounts (7) are respectively connected to the hinge shafts (202) located at the beginning and end of the scissor lift (2).

4. The automatic curtain evenly spaced unfolding structure according to claim 1, characterized in that: Several of the hook seats (3) are slidably connected to the protective cover (1) via linear guide rails.

5. The automatic curtain evenly spaced unfolding structure according to claim 3, characterized in that: The motor mount (7) is slidably connected to the protective cover (1) via several sets of linear guide rails.

6. The automatic curtain evenly spaced unfolding structure according to claim 1, characterized in that: The scissor bar (201) is hinged to the scissor bar (201) via a silent bearing, and the hinge shaft (202) is connected to the silent bearing.

7. The automatic curtain evenly spaced unfolding structure according to claim 1, characterized in that: The hinge shaft (202) is connected to the bearing seat (10) on the hook seat (3).

8. The automatic curtain evenly spaced unfolding structure according to claim 1, characterized in that: The hook (301) is built into the protective cover (1), and the bottom of the protective cover (1) is provided with a through groove (101) corresponding to the hook (301). The curtain fabric can pass through the through groove (101) and be hung on the hook (301).

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