A locking toggle structure, transmission box and motorized curtain
By using a connecting piece in the locking mechanism to transmit the lever force, the problem of uneven force distribution in the locking part of electric curtains is solved, improving stability and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIJIA (ZHEJIANG) INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-07
AI Technical Summary
When the curtain motor of existing electric curtains is connected to the main drive box, the locking parts of the two input ends are subjected to uneven forces, resulting in insufficient stability.
It adopts a locking toggle structure, with two locking parts connected by a connector. The lever is connected to the connector, and the toggle force is transmitted through the connector, making the rotation force of the two locking parts more balanced and stable.
This design achieves a more balanced and stable rotational force between the two locking parts, improving the stability of the electric curtains and simplifying the manufacturing process.
Smart Images

Figure CN224469622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric curtain technology, and more specifically to a locking mechanism, a transmission box, and an electric curtain. Background Technology
[0002] Electric curtains are used to electrically control the opening and closing of the curtain. One type of electric curtain has two input terminals on the main drive box and two output terminals on the curtain motor. Each of the two output terminals is controlled by a motor, so it is possible to achieve power input from either input terminal individually or from both input terminals simultaneously.
[0003] When installing the curtain motor, a locking connection is required between it and the main drive box to ensure that the output end of the curtain motor is connected to the input end of the main drive box and to prevent the curtain motor from falling off.
[0004] For the main drive box with two input terminals, both input terminals need to be locked to the curtain motor to ensure its stability. In the prior art, the input terminal includes a locking part, one of which is detachably connected to a lever, and a transmission component is connected between the two locking parts. When the lever is turned, the force of the lever acts directly on the locking part connected to it, causing the forces that make the two locking parts rotate to be unbalanced. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a locking toggle structure, a transmission box and an electric curtain, so that the force on the two locking parts that makes them rotate is more balanced.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a locking toggle structure, comprising a housing and two locking members rotating on the housing, each locking member comprising an integrally formed locking part and a connecting part, the locking part extending out of the housing, a connecting member detachably connected between the two connecting parts, a lever movably connected to the connecting member, the lever being rotatably connected to the housing, and at least a portion of the lever extending out of the housing.
[0007] As a further improvement of this utility model, a column is formed on the connecting part, and a threaded hole is provided on the column. Both ends of the connecting member are provided with through holes, and the through holes correspond to the threaded holes.
[0008] As a further improvement of this utility model, a first support is integrally formed on the lever, and a positioning hole is formed inside the outer shell, wherein the first support rotates within the positioning hole.
[0009] As a further improvement of this utility model, a second support is formed on the lever, and a first waist-shaped hole is provided on the connector, through which the second support passes.
[0010] As a further improvement of this utility model, the lever is provided with a second waist-shaped hole, and the connector is provided with a third support column, which passes through the second waist-shaped hole.
[0011] As a further improvement of this utility model, the outer shell includes a main shell, a secondary shell, and a bottom cover. The main shell and the secondary shell are detachably connected, and the bottom cover and the secondary shell are detachably connected.
[0012] As a further improvement of this utility model, a notch is formed between the bottom cover and the sub-shell, and the lever passes through the notch.
[0013] As a further improvement of this utility model, a circuit board is provided inside the outer casing, and a pin header is electrically connected to the circuit board, with the pin header protruding from the outer casing.
[0014] A transmission box includes the aforementioned locking mechanism.
[0015] An electric curtain includes the aforementioned locking mechanism.
[0016] The beneficial effects of this utility model are as follows: In this utility model, the two locking parts are connected by a connector, and the lever is connected to the connector, so that the lever can be set between the two locking parts. The lever does not need to be connected to one of the locking parts. The force of moving the lever does not act directly on the locking part, but is transmitted through the connector, so that the force that drives the two locking parts to rotate is closer and more stable, and the structure of the two locking parts is consistent, which is convenient for production and processing. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the internal structure of the secondary shell in this utility model;
[0019] Figure 3 This is a schematic diagram of the secondary shell in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the bottom cover of this utility model;
[0021] Figure 5 This is a schematic diagram of the lever structure in this utility model;
[0022] Figure 6 This is a schematic diagram of the locking component in this utility model;
[0023] Figure 7 This is a structural schematic diagram of the connector in this utility model.
[0024] Reference numerals: 1. Outer shell; 11. Positioning hole; 12. Main shell; 13. Sub-shell; 14. Bottom cover; 15. Notch; 16. Circuit board; 17. Pin header; 2. Locking element; 21. Locking part; 22. Connecting part; 221. Column; 3. Connecting element; 31. Through hole; 32. First oblong hole; 4. Lever; 41. First support column; 42. Second support column. Detailed Implementation
[0025] 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.
[0026] Reference Figures 1 to 7 As shown, a locking mechanism in this embodiment includes a housing 1 and two locking members 2 that rotate on the housing 1. Correspondingly, two output ends are provided at the curtain motor, and each output end is provided with a locking hole. The locking member 2 corresponds to the locking hole, and locking and unlocking with the locking hole are achieved by rotating the locking member 2.
[0027] The locking component 2 includes an integrally formed locking part 21 and a connecting part 22. The locking part 21 extends out of the outer shell 1. Preferably, the locking part 21 is elliptical and the locking hole is also elliptical. After the locking part 21 is inserted into the locking hole, the locking part 21 is rotated so that the locking part 21 and the locking hole intersect, thereby achieving locking between the two.
[0028] A connector 3 is detachably connected between the two connecting parts 22. A lever 4 is movably connected to the connector 3. The lever 4 is rotatably connected to the outer shell 1, and at least part of the lever 4 extends out of the outer shell 1. By rotating the lever 4, the connector 3 is moved, thereby causing the two locking parts 2 to rotate synchronously. The two locking parts 21 are connected by the connector 3, and the lever 4 is connected to the connector 3, so that the lever 4 can be positioned between the two locking parts 21. The lever 4 does not need to be connected to one of the locking parts 2. The force of moving the lever 4 does not act directly on the locking part 2, but is transmitted through the connector 3, so that the forces that drive the two locking parts 2 to rotate are closer and more stable, and the structures of the two locking parts 2 are consistent, making production and processing convenient.
[0029] Reference Figure 4 , Figure 6 and Figure 7As shown, a column 221 is formed on the connecting part 22, and a threaded hole is provided on the column 221. Both ends of the connector 3 are provided with through holes 31, which correspond to the threaded holes. The column 221 and the connector 3 are connected by bolts. After the bolt passes through the through hole 31, it is threadedly connected to the threaded hole. A washer is also installed between the end of the bolt and the connector 3.
[0030] Reference Figure 4 and Figure 5 As shown, in one embodiment, a first support column 41 is integrally formed on the lever 4, and a positioning hole 11 is formed inside the outer shell 1. The first support column 41 rotates in the positioning hole 11. When the lever 4 rotates, it rotates with the axis of the first support column 41 as the rotation center line.
[0031] Reference Figure 3 As shown, the positioning hole 11 is formed on the sub-shell 13.
[0032] In another embodiment, the first support 41 can be disposed on the housing 1, and a positioning hole 11 can be formed on the lever 4.
[0033] Reference Figure 4 , Figure 5 and Figure 7 As shown, preferably, a second support column 42 is formed on the lever 4, and a first waist-shaped hole 32 is provided on the connector 3. The second support column 42 passes through the first waist-shaped hole 32. When the lever 4 rotates, the second support column 42 will be displaced. The first waist-shaped hole 32 provides space for the second support column 42 to move and can drive the connector 3 to move.
[0034] A step is formed on the second pillar 42, and some of the connectors 3 are placed on the step to provide certain support for the connectors 3 and facilitate the installation of the connectors 3.
[0035] In another embodiment, the lever 4 has a second oblong hole, and the connector 3 has a third support column. The third support column passes through the second oblong hole. The positions of the second support column 42 and the first oblong hole 32 are interchanged, which can also achieve the same effect. For ease of processing, it is preferable to set the first oblong hole 32 on the connector 3 and the second support column 42 on the lever 4.
[0036] Reference Figure 1 As shown, the outer shell 1 includes a main shell 12, a secondary shell 13, and a bottom cover 14. The main shell 12 and the secondary shell 13 are detachably connected, and the bottom cover 14 is detachably connected to the secondary shell 13. The secondary shell 13 is located below the main shell 12, and the secondary shell 13 and the main shell 12 are connected by bolts. A top cover can also be detachably connected to the main shell 12, and the top cover is also connected to the main shell 12 by bolts.
[0037] The bottom cover 14 and the sub-shell 13 are also connected by bolts. Two clearance holes are provided on the bottom cover 14, and two locking parts 21 extend out of the bottom cover 14 through the corresponding clearance holes.
[0038] Reference Figure 1 and Figure 4 As shown, a notch 15 is formed between the bottom cover 14 and the sub-shell 13. The lever 4 passes through the notch 15. Preferably, the notch 15 is opened on the bottom cover 14. The notch 15 provides the lever 4 with a space to rotate and also serves as a rotation limit.
[0039] Alternatively, notch 15 can be made on the secondary shell 13.
[0040] Reference Figure 1 and Figure 2 As shown, a circuit board 16 is provided inside the outer casing 1. A pin header 17 is electrically connected to the circuit board 16. The pin header 17 protrudes from the outer casing 1. A transmission gear is provided inside the outer casing 1. A magnetic ring is installed on the transmission gear. A Hall sensor corresponding to the magnetic ring is provided on the circuit board 16. A nut corresponding to the pin header 17 is provided on the curtain motor. Power can be supplied to the circuit board 16 through the docking of the pin header 17 and the nut, thereby sensing the rotation of the magnetic ring through the Hall sensor.
[0041] A transmission box includes the aforementioned locking mechanism.
[0042] An electric curtain includes the aforementioned locking mechanism.
[0043] 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 locking toggle structure, characterized by: The device includes a housing (1) and two locking members (2) rotating on the housing (1). Each locking member (2) includes an integrally formed locking part (21) and a connecting part (22). The locking part (21) extends out of the housing (1). A connecting member (3) is detachably connected between the two connecting parts (22). A lever (4) is movably connected to the connecting member (3). The lever (4) is rotatably connected to the housing (1), and at least a portion of the lever (4) extends out of the housing (1).
2. The locking toggle of claim 1, wherein: A column (221) is formed on the connecting part (22), and a threaded hole is provided on the column (221). Both ends of the connecting member (3) are provided with through holes (31), and the through holes (31) correspond to the threaded holes.
3. The locking toggle of claim 1, wherein: The lever (4) has a first support column (41) integrally formed on it, and the housing (1) has a positioning hole (11) formed inside it. The first support column (41) rotates in the positioning hole (11).
4. A locking toggle structure according to any one of claims 1 to 3, characterized in that: A second support column (42) is formed on the lever (4), and a first waist-shaped hole (32) is provided on the connector (3), through which the second support column (42) passes.
5. A locking toggle structure according to any one of claims 1 to 3, characterized in that: The lever (4) has a second waist-shaped hole, and the connector (3) has a third support column, which passes through the second waist-shaped hole.
6. The locking toggle structure according to claim 1, characterized in that: The outer shell (1) includes a main shell (12), a secondary shell (13) and a bottom cover (14). The main shell (12) and the secondary shell (13) are detachably connected, and the bottom cover (14) and the secondary shell (13) are detachably connected.
7. A locking toggle structure according to claim 6, characterized in that: A notch (15) is formed between the bottom cover (14) and the sub-shell (13), and the lever (4) passes through the notch (15).
8. The locking toggle structure according to claim 1, characterized in that: A circuit board (16) is provided inside the outer casing (1), and a pin header (17) is electrically connected to the circuit board (16), with the pin header (17) protruding from the outer casing (1).
9. A transmission box, characterized in that: Includes a locking toggle structure as described in any one of claims 1 to 8.
10. An electric curtain, characterized in that: Includes a locking toggle structure as described in any one of claims 1 to 8.