Dual set transmission sub-transmission case and motorized window treatment

Abstract

The utility model relates to electric curtain technical field discloses a kind of double group transmission's sub-transmission box and electric curtain, and its technical scheme main point is including box, two side-by-side cavities are formed in box, cavity includes the upper cavity and lower cavity of separate arrangement, transmission gear is rotatably connected in the upper cavity and lower cavity, the coaxial arrangement of two transmission gears in same cavity, two upper cavities and two lower cavities are arranged in box, and transmission gear is rotatably connected respectively, so that four transmission belts can be connected, the left and right ends control of left curtain and the left and right ends control of right curtain are realized, so that the function of left curtain both ends arbitrary sliding and right curtain both ends arbitrary sliding can be realized, left curtain and right curtain are coiled in the arbitrary position of curtain track.

Description

Technical Field

[0001] This utility model relates to the field of electric curtain technology, and more specifically to a dual-drive auxiliary transmission box and an electric curtain. Background Technology

[0002] Electric curtains include a main drive box and a secondary drive box. The main drive box is used to connect the curtain motor, and the secondary drive box is connected to the main drive box to connect the curtain track. A drive belt is connected between the main drive box and the secondary drive box. The drive belt is driven to rotate by the curtain motor to open and close the curtain.

[0003] In the prior art, the curtain includes a left curtain and a right curtain, wherein one end of the left curtain and the right curtain are respectively connected to a trolley, and the other end of the left curtain and the right curtain are connected to a tail hook. The electric curtain is usually equipped with one belt or two belts. One belt can realize the synchronous opening and closing of the left curtain and the right curtain; two belts can realize the individual and / or synchronous opening and closing of the left curtain and the right curtain.

[0004] In the above method, the left and right curtains are drawn to the left and right sides of the motorized curtains respectively, making it difficult for them to be drawn to the left or right sides of the motorized curtains at the same time. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-drive auxiliary transmission box and electric curtain, which can realize the left and right curtains being drawn together to any position on the curtain track.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-drive auxiliary transmission box, comprising a box body, wherein two parallel cavities are formed within the box body, each cavity comprising an upper cavity and a lower cavity separated from each other, wherein a transmission gear is rotatably connected to both the upper cavity and the lower cavity, and the two transmission gears within the same cavity are coaxially arranged.

[0007] As a further improvement of this utility model, a baffle is integrally formed inside the box, and the baffle separates the two lower cavities.

[0008] As a further improvement of this utility model, a bracket is detachably connected to the baffle, and the bracket separates the upper cavity and the lower cavity within the cavity.

[0009] As a further improvement of this utility model, the bracket is integrally formed with a partition, which separates the two upper cavities.

[0010] As a further improvement of this utility model, a support column is integrally formed inside the cavity, and the transmission gear is movably sleeved on the corresponding support column.

[0011] As a further improvement of this utility model, the box body includes an outer shell and a cover plate, and the outer shell and the cover plate are detachably connected by the support column.

[0012] As a further improvement of this utility model, the box body includes a connection port for connecting to the track, and the connection port is provided with two slots for engaging with the track, and the two slots are arranged opposite to each other.

[0013] An electric curtain includes the aforementioned dual-drive auxiliary transmission box.

[0014] The beneficial effects of this utility model are as follows: The box body of this utility model is provided with two upper cavities and two lower cavities, and each is rotatably connected to a transmission gear, so that four transmission belts can be connected to realize the control of the left and right ends of the left curtain and the right curtain. Thus, the left and right ends of the curtain can slide arbitrarily, and the left and right curtains can be closed together at any position on the curtain track. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the baffle in this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the bracket in this utility model;

[0020] Figure 6 This is a schematic diagram of the cover plate in this utility model.

[0021] Reference numerals: 1. Box body; 11. Baffle; 12. Support column; 13. Outer shell; 14. Cover plate; 15. Connection port; 16. Slot; 2. Cavity; 21. Upper cavity; 22. Lower cavity; 3. Transmission gear; 4. Bracket; 41. Partition. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1 to 6 As shown, a dual-drive auxiliary transmission box of this embodiment includes a housing 1, and two parallel cavities 2 are formed inside the housing 1. Each cavity 2 includes an upper cavity 21 and a lower cavity 22 that are separated from each other. Two upper cavities 21 and two lower cavities 22 are formed inside the housing 1. Transmission gears 3 are rotatably connected to both the upper cavity 21 and the lower cavity 22. The two transmission gears 3 in the same cavity 2 are coaxially arranged. The two coaxial transmission gears 3 in a single cavity 2 constitute a transmission group, and two transmission groups are provided.

[0024] All three transmission gears are connected to transmission belts, and each transmission belt is connected to a pulley, meaning there are a total of four pulleys. The curtain includes a left curtain and a right curtain. Two pulleys are connected to the two ends of the left curtain, and the other two pulleys are connected to the two ends of the right curtain. Each transmission belt has its own power input, which allows the left curtain and the right curtain to slide arbitrarily at both ends, enabling the left and right curtains to be drawn together at any position on the curtain track.

[0025] The upper cavity 21 and the lower cavity 22 are separated to prevent interference between the drive belt located in the upper cavity 21 and the drive belt located in the lower cavity 22.

[0026] Each upper cavity 21 and lower cavity 22 has two openings, which are connected to the corresponding upper cavity 21 or lower cavity 22. The two openings are arranged on the left and right sides to allow the transmission belt to pass through, so that the transmission belt can enter the track.

[0027] The housing 1 is provided with two upper chambers 21 and two lower chambers 22, and each is rotatably connected to a transmission gear 3, which can be connected to four transmission belts to realize the control of the left and right ends of the left curtain and the control of the right and right ends of the right curtain.

[0028] Alternatively, one set of drives can connect to a single piece of curtain fabric, and another set of drives can connect to a single piece of gauze.

[0029] Reference Figure 4 As shown, a baffle 11 is integrally formed inside the housing 1. The baffle 11 separates two lower cavities 22. The baffle 11 is Y-shaped, which facilitates the transmission between the transmission belt and the transmission gear 3 and prevents the transmission belts in the two lower cavities 22 from interfering with each other.

[0030] Reference Figure 3 and Figure 5 As shown, a bracket 4 is detachably connected to the baffle 11. The bracket 4 separates the upper cavity 21 and the lower cavity 22 in the cavity 2. The bracket 4 provides support for the transmission gear 3 located in the upper cavity 21 and also prevents the transmission belt in the upper cavity 21 and the lower cavity 22 from interfering with each other.

[0031] A first protruding ring is formed at the bottom of the cavity 2. The first protruding ring is used to support the transmission gear 3 located in the lower cavity 22 and also to prevent the transmission gear 3 from directly contacting the bottom wall of the cavity 2, thereby reducing the contact area between the transmission gear 3 located in the lower cavity 22.

[0032] A second convex ring is formed on at least the upper surface of the bracket 4. The second convex ring is used to support the transmission gear 3 located in the upper cavity 21 and reduce the contact area with the transmission gear 3 located in the upper cavity 21.

[0033] A through hole is provided on the bracket 4, and the support column 12 passes through the through hole.

[0034] Reference Figure 5 As shown, a partition 41 is integrally formed on the bracket 4, which separates the two upper cavities 21. The partition 41 is also Y-shaped to prevent the transmission belts in the two upper cavities 21 from interfering with each other.

[0035] Reference Figure 2 , Figure 4 As shown, a support column 12 is integrally formed inside the cavity 2, and the transmission gear 3 is movably sleeved on the corresponding support column 12 to ensure that the two transmission gears 3 in the upper cavity 21 and the lower cavity 22 are coaxial.

[0036] The housing 1 includes an outer shell 13 and a cover plate 14. The outer shell 13 and the cover plate 14 are detachably connected by a support column 12. In one embodiment, a first threaded hole can be opened on the support column 12, and a countersunk hole can be opened on the cover plate 14. The countersunk hole corresponds to the first threaded hole and is connected by bolts.

[0037] Reference Figure 2 and Figure 6 As shown, in another embodiment, the cover plate 14 extends a ring towards the side of the support column 12, and a positioning hole is opened on the support column 12. The ring is inserted into the positioning hole, thereby forming the positioning of the cover plate 14 and the outer shell 13.

[0038] A column is formed inside the positioning hole, and a second threaded hole is opened on the column. The countersunk hole corresponds to the second threaded hole, and a reinforcing rib is connected between the column and the support column 12.

[0039] Reference Figure 1 and Figure 3 As shown, the housing 1 includes a connection port 15 that connects to the track. The connection port 15 has two slots 16 that engage with the track, and the two slots 16 are arranged opposite to each other. Two arc-shaped pieces facing away from each other are formed on the top of the track. The ends of the arc-shaped pieces are inserted into the slots 16, thereby positioning the track and the housing 1.

[0040] Insert the end of the track into the connector 15.

[0041] An electric curtain includes the aforementioned dual-drive auxiliary transmission box.

[0042] 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 secondary transmission box with dual-set transmission, characterized in that: Includes a housing (1), which has two parallel cavities (2) inside. Each cavity (2) includes an upper cavity (21) and a lower cavity (22) separated from each other. Both the upper cavity (21) and the lower cavity (22) are rotatably connected to a transmission gear (3). The two transmission gears (3) in the same cavity (2) are coaxially arranged.

2. The auxiliary transmission box with dual-set transmission according to claim 1, characterized in that: The box (1) has an integrally formed baffle (11) inside, which separates the two lower cavities (22).

3. The auxiliary transmission box with dual-set transmission according to claim 2, characterized in that: A bracket (4) is detachably connected to the baffle (11), and the bracket (4) separates the upper cavity (21) and the lower cavity (22) within the cavity (2).

4. The auxiliary transmission box with dual-set transmission according to claim 3, characterized in that: The bracket (4) has an integrally formed partition (41) that separates the two upper cavities (21).

5. The auxiliary transmission box with dual-set transmission according to claim 1, characterized in that: The cavity (2) has an integrally formed support column (12), and the transmission gear (3) is movably sleeved on the corresponding support column (12).

6. The auxiliary transmission box with dual-set transmission according to claim 5, characterized in that: The housing (1) includes an outer shell (13) and a cover plate (14), and the outer shell (13) and the cover plate (14) are detachably connected by the support column (12).

7. The auxiliary transmission box with dual-set transmission according to claim 1, characterized in that: The housing (1) includes a connection port (15) for connecting to the track. Two slots (16) are provided at the connection port (15) for engaging with the track, and the two slots (16) are arranged opposite to each other.

8. An electric curtain, characterized in that: Includes a secondary transmission box with dual-set transmission as described in any one of claims 1 to 7.

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