Transmission structure of curtain machine

Abstract

The utility model relates to the technical field of curtain machines, and provides a transmission structure of a curtain machine, which can realize the independence of blade turning action and opening and closing action. Moreover, during opening and closing, only the opening and closing transmission belt needs to be driven to work, and the blade turning transmission belt does not need to work, so that the energy consumption and the resistance of the curtain machine during opening and closing of the curtain sheets are less.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain machines, in particular to a transmission structure of a curtain machine. Background Art

[0002] A curtain machine is a machine that can electrically control the movement of curtains. A vertical curtain machine (hereinafter referred to as a curtain machine) has multiple slats. The curtains are opened and closed by adjusting the position of the slats, and the light transmission angle of the curtains is adjusted by flipping the slats to different angles. In order to achieve a curved track, a dual-belt drive method is currently used.

[0003] For example, a bending track vertical curtain control device with integrated flipping and opening and closing dual functions, disclosed in publication number CN112554765A, can perform curtain flapping or curtain flapping and curtain opening and closing actions simultaneously; however, it cannot separate the curtain opening and closing actions and the curtain flapping actions, making it inconvenient to use.

[0004] For example, the interlocking pulley and curtain machine disclosed in Publication No. CN116201461A has a first transmission member and a second transmission member on the pulley, and a differential clutch structure is formed between the first transmission member and the second transmission member. The first transmission member is in transmission connection with a first transmission belt in a guide rail, and the second transmission member is in transmission connection with a second transmission belt in the guide rail. When the second transmission belt is not working and the first transmission belt is working, the first transmission member can be driven to connect to a dimming pendant on the pulley to achieve the flipping of the curtain blades. When the first transmission belt and the second transmission belt are working simultaneously, the transmission connection between the first transmission member and the dimming pendant can be disconnected to achieve the opening and closing of the curtain blades without flipping the curtain blades. This allows the flipping action and the opening and closing action of the curtain blades to be separated.

[0005] However, in the prior art CN116201461A, the following problems may be encountered during application:

[0006] The motor on the curtain machine needs to drive the first transmission belt and the second transmission belt at the same time to open and close the curtain blades. The first transmission belt used to drive the flaps needs to work simultaneously with the second transmission belt, resulting in greater energy consumption and transmission resistance. Especially for some longer curtain machines, the guide rail length can even reach 12m. The first transmission belt needs to work for 12m with the second transmission belt, and the defects in energy consumption and transmission resistance are more prominent. Utility Model Content

[0007] In view of this, the present invention proposes a transmission structure for a curtain machine, aiming to solve the problem that the current curtain machine needs to drive two transmission belts simultaneously when opening and closing curtain panels.

[0008] The technical solution of the present utility model is achieved as follows:

[0009] A transmission structure of a curtain machine includes a guide rail, in which an auxiliary transmission belt, a leaf-turning transmission belt and an opening and closing transmission belt are arranged. The auxiliary transmission belt is fixedly arranged in the guide rail, the leaf-turning transmission belt is in transmission connection with a first driver, and the opening and closing transmission belt is in transmission connection with a second driver.

[0010] As a further optional solution, in the guide rail, the auxiliary transmission belt, the leaf-turning transmission belt and the opening and closing transmission belt are arranged in sequence from top to bottom along the height direction.

[0011] As a further optional solution, the auxiliary transmission belt, the flap transmission belt and the opening and closing transmission belt are all synchronous belts.

[0012] As a further optional solution, the first driver and the second driver are motors.

[0013] As a further optional solution, a sliding channel for the pulley to slide is formed inside the guide rail, and a transmission space is formed on both sides of the sliding channel. The transmission space is formed with a first transmission track, a second transmission track and a third transmission track from top to bottom. The auxiliary transmission belt is arranged in the first transmission track, the leaf-flipping transmission belt is arranged in the second transmission track, and the opening and closing transmission belt is arranged in the third transmission track.

[0014] Compared with the prior art, the transmission structure of the curtain machine of the present application has at least the following beneficial effects:

[0015] The transmission structure of the curtain machine can realize the independence of the leaf-flipping action and the opening and closing action; and, when performing the opening and closing action, only the opening and closing transmission belt needs to be driven to work, while the leaf-flipping transmission belt does not need to work. The curtain machine consumes less energy and has less resistance when opening and closing the curtain pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a transmission structure of a curtain machine according to an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the cross section of the guide rail in the embodiment of the present invention.

[0019] In the figure: 100, guide rail; 110, sliding channel; 120, first transmission track; 130, second transmission track; 140, third transmission track; 200, leaf-turning transmission belt; 300, opening and closing transmission belt; 400, auxiliary transmission belt;

[0020] 1. Frame; 2. First transmission member; 3. Second transmission member; 4. Dimming pendant. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] refer to Figure 1 An embodiment of the present invention shows a transmission structure of a curtain machine, including a guide rail 100, in which an auxiliary transmission belt 400, a flap transmission belt 200 and an opening and closing transmission belt 300 are arranged. The auxiliary transmission belt 400 is fixedly arranged in the guide rail 100, the flap transmission belt 200 is transmission-connected to a first driver, and the opening and closing transmission belt 300 is transmission-connected to a second driver.

[0025] The transmission structure of the curtain machine can be used to cooperate with the pulley of the prior art CN116201461A;

[0026] Regarding the pulley of the prior art CN116201461A, to put it simply, it includes a frame 1, on which is provided a dimming hanger 4 for connecting curtain pieces, and the frame 1 is provided with a first transmission member 2 and a second transmission member 3, and a differential clutch structure is provided between the first transmission member 2 and the second transmission member 3; the first transmission member 2 is provided with a third circumferential transmission part, and the second transmission member 3 is provided with a fourth circumferential transmission part. When the rotational speeds of the first transmission member 2 and the second transmission member 3 are different, the first transmission member 2 and the second transmission member 3 move axially and away from each other, so that the first transmission member 2 can be connected to the dimming hanger 4 by transmission; and when the rotational speeds of the first transmission member 2 and the second transmission member 3 are the same, under the drive of the reset mechanism, the first transmission member 2 and the second transmission member 3 approach each other, so that the first transmission member 2 and the dimming hanger 4 are separated by transmission; wherein, the more specific working principle of the pulley of the prior art CN116201461A will not be elaborated here.

[0027] When the transmission structure of the present application is combined with the pulley in the prior art CN116201461A, the auxiliary transmission belt 400 is connected to the fourth circumferential transmission part on the second transmission member 3, and the flap transmission belt 200 is connected to the third circumferential transmission part on the first transmission member 2, and the opening and closing transmission belt 300 is fixedly connected to the frame 1 of one of the pulleys.

[0028] When leaf turning is required:

[0029] The leaf-turning transmission belt 200 is working, while the opening and closing transmission belt 300 is stationary. The leaf-turning transmission belt 200 drives the first transmission member 2 to rotate. Since the auxiliary transmission belt 400 is fixed, the second transmission member 3 connected to the auxiliary transmission belt 400 does not rotate, so that a speed difference is generated between the first transmission member 2 and the second transmission member 3. The first transmission member 2 and the second transmission member 3 are away from each other. The lower end of the first transmission member 2 is transmission-connected to the dimming hanger 4, and the upper end of the second transmission member 3 is locked with the structure on the frame 1 (see CN116201461A). At this time, the leaf-turning transmission belt 200 can rotate the dimming hanger 4 through the first transmission member 2, thereby realizing the flipping of the curtain blades.

[0030] When opening and closing actions are required:

[0031] The opening and closing transmission belt 300 is working, while the leaf-flipping transmission belt 200 is stationary; since the leaf-flipping transmission belt 200 and the auxiliary transmission belt 400 are not moving, the first transmission member 2 and the second transmission member 3 are not rotating, which is equivalent to the first transmission member 2 and the second transmission member 3 having the same rotation speed. Driven by the reset mechanism, the first transmission member 2 and the second transmission member 3 approach each other, and the transmission between the first transmission member 2 and the dimming hanger 4 is separated; therefore, when the opening and closing transmission belt 300 drives the frame 1 to move in the guide rail 100, the leaf-flipping transmission belt 200 is stationary, and the first transmission member 2 will rotate while moving along the guide rail 100, but since the first transmission member 2 and the dimming hanger 4 have been separated, the dimming hanger 4 does not rotate. In this way, only the opening and closing action is realized, and the leaf-flipping action is not performed.

[0032] In this way, the transmission structure of this embodiment can realize the independence of the leaf-flipping action and the opening and closing action compared to the prior art CN112554765A; and, when performing the opening and closing action, only the opening and closing transmission belt 300 needs to be driven to work, and the leaf-flipping transmission belt 200 does not need to work. Compared with the prior art of dual-belt drive structure such as CN112554765A or CN215634784U, the curtain machine consumes less energy and has less resistance when opening and closing the curtain panels.

[0033] Specifically, the above solution is combined with the structure of the pulley of the prior art CN116201461A, such as Figure 1 As shown, in the guide rail 100 , the auxiliary transmission belt 400 , the flap transmission belt 200 and the opening and closing transmission belt 300 are arranged in sequence from top to bottom along the height direction.

[0034] Specifically, the auxiliary transmission belt 400 , the flap transmission belt 200 , and the opening and closing transmission belt 300 are all synchronous belts; and the first driver and the second driver are motors.

[0035] Conventionally, a transmission box is provided at both ends of the guide rail 100, and a synchronous wheel is provided in the transmission box. The leaf-flipping synchronous belt and the opening and closing transmission belt 300 are wound around different synchronous wheels in the transmission box. Please refer to the prior art CN112554765A; the first drive and the second drive in this embodiment can be respectively provided on the transmission boxes at both ends of the guide rail 100.

[0036] It should be noted that, regarding the opening and closing process of the curtain slats, the multiple curtain slats on the curtain machine can be moved in one direction, that is, the curtain slats are gathered on one side of the curtain machine guide rail 100; or the multiple curtain slats can be moved in two directions, that is, the curtain slats are gathered on the left and right sides of the curtain machine guide rail 100; referring to the prior art CN217300418U or CN218044703U, the pulleys of the multiple curtain slats moving in the same direction are connected by a distance piece to form a pulley group, and the opening and closing transmission belt 300 is fixedly connected to the pulley at the end of the pulley group. Therefore, when the opening and closing transmission belt 300 moves, it directly drives one pulley to move in the guide rail 100. In the process of retracting the curtain slats, one pulley pushes the other pulleys to move to one side of the guide rail 100; in the process of opening the curtain slats, one pulley is used to pull the other pulleys to move through the distance piece, and the distance piece makes the distance between the multiple pulleys the same, that is, the distance between the curtain slats after opening is the same;

[0037] In some embodiments, in order to facilitate the installation of the auxiliary transmission belt 400, the leaf-turning transmission belt 200 and the opening and closing transmission belt 300 in the guide rail 100, as shown in FIG. Figure 2 As shown, the guide rail 100 is internally formed with a sliding channel 110 for the sliding of the pulley. The sliding channel 110 is arranged along the length of the guide rail 100. Transmission spaces are formed on both sides of the sliding channel 110. The transmission spaces are sequentially formed with a first transmission track 120, a second transmission track 130, and a third transmission track 140 from top to bottom. The auxiliary transmission belt 400 is arranged in the first transmission track 120, the leaf-turning transmission belt 200 is arranged in the second transmission track 130, and the opening and closing transmission belt 300 is arranged in the third transmission track 140. The side of the first transmission track 120 is connected to the sliding channel 110, the side of the second transmission track 130 is connected to the sliding channel 110, and the side of the third transmission track 140 is connected to the sliding channel 110. In this embodiment, the internal structure of the guide rail 100 is rationally arranged, making the structure of the pulley, the auxiliary transmission belt 400, the leaf-turning transmission belt 200, and the opening and closing transmission belt 300 more compact.

[0038] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transmission structure of a curtain machine, characterized in that: It includes a guide rail, in which an auxiliary transmission belt, a leaf-turning transmission belt and an opening and closing transmission belt are arranged. The auxiliary transmission belt is fixedly arranged in the guide rail, the leaf-turning transmission belt is connected to the first driver, and the opening and closing transmission belt is connected to the second driver.

2. The transmission structure of the curtain machine according to claim 1, characterized in that: In the guide rail, the auxiliary transmission belt, the leaf-turning transmission belt and the opening and closing transmission belt are arranged in sequence from top to bottom along the height direction.

3. The transmission structure of the curtain machine according to claim 1, characterized in that: The auxiliary transmission belt, the flap transmission belt and the opening and closing transmission belt are all synchronous belts.

4. The transmission structure of the curtain machine according to claim 1, characterized in that: The first driver and the second driver are motors.

5. The transmission structure of the curtain machine according to claim 1, characterized in that: A sliding channel for the pulley to slide is formed inside the guide rail, and transmission space is formed on both sides of the sliding channel. The transmission space is formed with a first transmission track, a second transmission track and a third transmission track from top to bottom. The auxiliary transmission belt is arranged in the first transmission track, the leaf-flipping transmission belt is arranged in the second transmission track, and the opening and closing transmission belt is arranged in the third transmission track.

Images