Locking mechanism and vertical curtain

Abstract

The utility model relates to a locking mechanism and a vertical curtain. The locking mechanism comprises a locking assembly, a locking hole and a locking groove, the locking assembly is rotationally connected to one of the motor shell and the transmission box, the locking hole is formed in the other one of the motor shell and the transmission box, the locking hole corresponds to the locking assembly, and the locking groove is communicated with the locking hole. The locking assembly comprises a locking frame, and the locking frame passes through the locking hole, enters the locking groove after being rotated and intersects with the locking hole. The motor shell and the transmission case are rotationally locked and connected through the locking frame, so that rapid connection of the motor shell and the transmission case is achieved, and the disassembly and assembly efficiency is high. The locking frame rotates after being inserted into the locking hole, is connected to the locking groove through a rotary buckle and is in cross connection with the locking hole, so that locking is achieved, the locking connection structure is simplified, and the function stability is high. The locking assembly is rotatably connected to the motor shell or the transmission case, and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of blinds, in particular to a vertical blind, and more particularly to a locking mechanism and the vertical blind. Background Art

[0002] The electric vertical curtain is provided with a power mechanism, a vertical curtain track and a transmission assembly, and the power mechanism drives the vertical curtain track to move through the transmission assembly to perform dimming and opening and closing movements. For example, China's public document CN220275364U discloses a driving device for an electric curtain, and when installing the motor box, the driving device needs to align the clamping block on the motor box with the clamping slot, and then the motor box pushes the clamping block to contract the spring, and then the motor box is gently rotated to clamp the clamping block with the clamping slot, and then the clamping block is rotated to the top of the corresponding clamping slot, and the elastic force of the spring causes the clamping block to clamp with the clamping slot.

[0003] The above-mentioned drive device connection locking method requires a large operation and installation space, and the locking structure is complicated to assemble and operate, and has the technical problem of poor operational stability, so it needs to be improved. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the embodiments of the present utility model provide a locking mechanism and a vertical curtain to solve the technical problems that the locking structure of the driving device is complicated and the assembly is difficult.

[0005] According to a first aspect of an embodiment of the utility model, a locking mechanism is provided, comprising a locking assembly, a locking hole and a locking slot, wherein the locking assembly is rotatably connected to one of a motor housing and a transmission box, the locking hole is arranged at the other of the motor housing and the transmission box, the locking hole is arranged corresponding to the locking assembly, and the locking slot is communicated with the locking hole;

[0006] The locking assembly comprises a locking frame, which passes through the locking hole and enters the locking groove after being rotated to form an intersection with the locking hole.

[0007] In one embodiment, the locking frame is rotatably connected to the transmission box, the locking hole is provided in the motor housing, and part of the locking frame is inserted into the locking hole and rotated to lock to the locking groove when the motor housing and the transmission box are brought close to each other.

[0008] In one embodiment, the locking frame partially protrudes beyond the outer peripheral wall of the transmission box portion to form a locking protrusion, the locking hole includes at least one long end and at least one short end, the locking groove is recessed relative to the hole wall of the locking hole and the locking groove extends from the long end toward the short end, and the locking protrusion is cross-locked with the locking hole.

[0009] In one embodiment, the locking frame includes a rotating portion and a connecting portion protruding from the rotating portion, the rotating portion is rotatably connected to the transmission box, the connecting portion extends out of the transmission box, and the locking convex plate protrudes radially from the connecting portion.

[0010] In one embodiment, the outer peripheral wall of the locking frame is provided with a positioning portion, and the transmission box is provided with a stop portion, the stop portion is located in the rotation direction of the positioning portion, and the stop portion is used to limit the positioning portion to be in an unlocked position or a locked position.

[0011] In one embodiment, the positioning portion includes a positioning groove located on the rotating surface, the stopping portion is a stopping rib provided on the transmission box, and the locking frame is rotated to the positioning groove to limit the engagement with the stopping rib.

[0012] In one embodiment, the locking assembly further includes a toggle handle, the transmission box is provided with an avoidance gap, and the toggle handle extends from the locking frame along the avoidance gap to the outside of the transmission box.

[0013] In one embodiment, the toggle handle and the locking frame are detachably connected.

[0014] In one embodiment, the transmission box is provided with a transmission shaft, and the transmission shaft is rotatably inserted into the locking frame and is coaxially arranged.

[0015] The second aspect of the utility model discloses a vertical curtain, including a track assembly, a power assembly, a transmission assembly and the locking mechanism as described above, wherein the power assembly and the track assembly are arranged in parallel, the transmission assembly is connected to the end of the track assembly through the transmission box, the locking assembly is rotatably engaged with the power assembly, and the track assembly includes a positioning member connected to the other end of the power assembly.

[0016] The technical solution provided by the embodiment of the utility model may include the following beneficial effects: the motor housing and the transmission box are connected by rotating and locking through the locking frame, so as to realize the quick connection between the motor housing and the transmission box, and the disassembly and assembly efficiency is high. The locking frame is inserted into the locking hole and rotated, and the lock is connected to the locking groove with a turn buckle and forms a cross connection with the locking hole, so as to realize locking, and the locking connection structure is simplified and the functional stability is high. The locking assembly can be rotatably connected to the motor housing or the transmission box, and the assembly is convenient.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] Figure 1 is a schematic structural diagram showing a vertical blind according to an exemplary embodiment.

[0020] Figure 2 It is a structural schematic diagram showing the assembly of a transmission assembly, a track assembly and a power assembly according to an exemplary embodiment.

[0021] Figure 3 is a schematic structural diagram showing a transmission assembly according to an exemplary embodiment.

[0022] Figure 4 is a schematic diagram showing rotational locking of a locking assembly and a transmission box according to an exemplary embodiment.

[0023] Figure 5 It is a schematic diagram showing the cooperation between the locking mechanism and the transmission shaft according to an exemplary embodiment.

[0024] Figure 6 It is a schematic structural diagram showing a transmission box limiting the rotation range of a locking mechanism according to an exemplary embodiment.

[0025] Figure 7 is a schematic diagram showing an exploded structure of a vertical blind according to an exemplary embodiment.

[0026] Figure 8 FIG. 1 is a schematic structural diagram showing a positioning member according to an exemplary embodiment.

[0027] In the figure, the track assembly 10; the power assembly 20; the locking hole 21; the long end 211; the short end 212; the locking groove 22; the power output end 23; the motor housing 24; the transmission assembly 30; the transmission box 31; the avoidance gap 311; the stopper 312; the transmission shaft 32; the locking assembly 40; the locking frame 41; the locking convex plate 411; the transmission hole 412; the connecting part 413; the rotating part 414; the positioning part 415; the positioning convex point 416; the toggle handle 42; the positioning member 50; the mounting part 51; the limiting part 52; the plug-in column 53. DETAILED DESCRIPTION

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 5 As shown, the utility model provides a locking mechanism, which includes a locking assembly 40, a locking hole 21 and a locking slot 22. The locking assembly 40 is rotatably connected to one of the motor housing 24 and the transmission box 31, and the locking hole 21 is provided at the other of the motor housing 24 and the transmission box. Specifically, the locking assembly 40 is rotatably connected to the motor housing 24, and the locking hole 21 is provided at the transmission box. Alternatively, the locking hole 21 is rotatably connected to the motor housing 24, and the locking assembly 40 is provided at the transmission box. The locking assembly 40 can be rotatably connected to the motor housing 24 or the transmission box 31, and is easy to assemble.

[0032] The locking mechanism can be applied to electric curtains, especially vertical curtains. The vertical curtain includes a track assembly 10, a power assembly 20 connected to the track assembly 10, and a transmission assembly 30 fixed to one end of the track assembly 10. The power assembly 20 is provided with a power output end 23. The power assembly 20 is provided with a motor housing 24, and the transmission assembly 30 is provided with a transmission box 31. The locking mechanism is used to quickly and conveniently connect the transmission assembly 30 and the power assembly 20 for power transmission.

[0033] The locking hole 21 is arranged corresponding to the locking assembly 40, and the locking groove 22 is connected to the locking hole 21. The locking assembly 40 includes a locking frame 41, which passes through the locking hole 21 and enters the locking groove 22 after rotation, forming a cross with the locking hole 21. The motor housing 24 and the transmission box 31 are connected by rotation and locking through the locking frame 41, so as to achieve a quick connection between the motor housing 24 and the transmission box 41, and the disassembly and assembly efficiency is high. The locking frame 41 is inserted into the locking hole 21 and rotated, and is connected to the locking groove 22 with a turn buckle and forms a cross connection with the locking hole 21, so as to achieve locking, and the locking connection structure is simplified and the functional stability is high.

[0034] In one embodiment, the locking frame 41 is rotatably connected to the transmission box 31, and the locking hole 21 is provided in the motor housing 24. The locking frame 41 is provided in the transmission box 31, the rotating part of the locking frame 41 is connected to the wall of the transmission box 31, and the locking part of the locking frame 41 matches with the locking hole 21 so as to be plugged and matched with the locking frame 41. When the motor housing 24 and the transmission box 31 are assembled close to each other, the locking part of the locking frame 41 is inserted into the locking hole 21 and rotated to lock to the locking groove 22.

[0035] The locking frame 41 is disposed on the transmission box 31, and the space of the transmission box 31 can be utilized for layout and assembly. The motor housing 24 is provided with the locking hole 21, which can reduce the structural complexity of the motor housing 24 and the power assembly 20.

[0036] In a preferred embodiment, the locking frame 41 partially protrudes from the outer peripheral wall of the transmission box 31 to form a locking protrusion 411, the locking hole 21 includes at least one long end 211 and at least one short end 212, the locking groove 22 is recessed relative to the hole wall of the locking hole 21 and the locking groove 22 extends from the long end 211 to the short end 212, and the locking protrusion 411 is cross-locked with the locking hole 21.

[0037] The locking groove 22 is recessed relative to the hole wall of the locking hole 21 and the locking groove 22 extends from the long end 211 to the short end 212. The locking groove 22 is recessed from the hole wall of the locking hole 21 to form a curved space in which the hole and the groove communicate with each other. Preferably, the locking groove 22 intersects with the locking hole 21 to form a channel structure in the intersecting direction. The locking convex plate 411 cross-locks with the locking hole 21 to achieve a rotational locking connection. Preferably, the center lines of the locking groove 22 and the locking hole 21 intersect vertically. In an optional embodiment, the locking groove 22 is a groove structure recessed from the hole wall of the locking hole 21. In another optional embodiment, the locking groove 22 is recessed from the hole wall of the locking hole 21 and communicates with the internal space of the front shell.

[0038] Preferably, the locking hole 21 is a non-circular hole, and at least part of the locking hole 21 is set as a non-circular structure. The diameter of the locking hole 21 decreases from the long end 211 to the adjacent short end 212. The maximum edge contour distance of the long end 211 from the center of the locking hole 21 is greater than the maximum edge contour distance of the short end 212 from the center of the locking hole 21, so as to form a non-circular structure of part of the hole wall of the locking hole 21. Among them, the locking frame 41 is inserted into the locking hole 21 and rotates along the long end 211 to the short end 212 and is buckled in the locking groove 22. The locking frame 41 is rotatably connected to the transmission box 31, and the locking frame 41 and the locking hole 21 are plug-connected.

[0039] In one embodiment, the locking convex plate 411 is bent relative to the locking frame 41, and the locking convex plate 411 extends out of the transmission box 31. The locking frame 41 rotates after the locking convex plate 411 passes through the locking hole 21, so that the locking convex plate 411 is buckled in the locking groove 22. The locking convex plate 411 is tilted relative to the rotation center of the locking frame 41 to form an inverted buckle structure. Among them, the locking convex plate 411 is inserted from the long end 211 of the locking hole 21 and then rotates into the locking groove 22 corresponding to the short end 212, thereby realizing an inverted buckle locking connection, and the connection effect is good.

[0040] The locking frame 41 is rotatably limitedly connected to the transmission box 31, so that the relative installation position of the locking frame 41 and the transmission box 31 is stable and can rotate relative to each other. Preferably, the locking frame 41 is provided with a rotation groove, the transmission box 31 is a thin-walled structural member, and the transmission box 31 is provided with a rotation hole. The locking frame 41 is pressed and inserted into the rotation hole, and the wall of the transmission box 31 is at least partially sunk into the rotation groove to form a rotatable limited connection.

[0041] In an optional embodiment, the locking frame 41 includes a rotating portion 414 and a connecting portion 413 protruding from the rotating portion 414, and the rotating portion 414 is rotatably limited and connected to the transmission box 31. The connecting portion 413 extends out of the transmission assembly 30, and the locking convex plate 411 protrudes radially from the connecting portion 413. The protruding length of the connecting portion 413 is adjusted based on the end face spacing between the locking groove 22 and the transmission box 31, and the locking force can be conveniently adjusted. The locking convex plate 411 is configured as a plurality of lateral protrusion structures that are evenly protruded and distributed relative to the center of the connecting portion 413. The rotating groove is provided in the rotating portion 414, thereby constituting a rotatable limited connection. Preferably, the rotating portion 414 and the connecting portion 413 constitute a stepped column structure, and the rotating portion 414 is configured as a circular structure.

[0042] like Figures 4 to 6As shown, the rotation range and rotation angle of the positioning locking frame 41 are shown, wherein the transmission box 31 and the locking frame 41 are provided with a positioning structure to position and limit the rotation angle to avoid the locking angle of the locking frame 41 from changing. In one embodiment, the outer peripheral wall of the locking frame 41 is provided with a positioning portion 415, and the transmission box 31 is provided with a stopper 312, the stopper 312 is located in the rotation direction of the positioning portion 415, and the stopper 312 is used to limit the positioning portion 415 to be in an unlocked position or a locked position. The positioning portion 415 rotates with the locking frame 41 relative to the transmission box 31 to be in different rotational positions. Among them, the positioning portion 415 and the stopper 312 limit each other, so as to realize the locking of the locking frame 41 in the locked position and the unlocked position.

[0043] Optionally, the positioning portion 415 and the stop portion 312 are a convex block and groove structure defined by elastic extrusion and change; or, the positioning portion 415 and the stop portion 312 are a convex rib and convex rib structure defined by elastic extrusion and change; or, the positioning portion 415 and the stop portion 312 are a convex rib and slot structure defined by elastic extrusion and change. That is, when the positioning portion 415 rotates to the position of the stop portion 312, at least one of the positioning portion 415 or the stop portion 312 is elastically deformed, so that the positioning portion 415 passes over or snaps into the stop portion 312, thereby achieving snap-fit ​​positioning, thereby positioning the relative positions of the locking frame 41 and the transmission box 31.

[0044] In an optional embodiment, the positioning portion 415 includes a positioning groove located on the rotating surface, the stopper portion 312 is a stopper rib provided on the transmission box 31, and the locking frame 41 rotates to the positioning groove to limit the matching stopper rib. Optionally, the stopper portion 312 is a rib provided at the extension portion of the rotating hole of the transmission box 31, and the stopper rib extends in a direction parallel to the axis of the rotating hole. The positioning groove is provided on the rotating surface of the positioning portion 415, and the rotating surface is the outer peripheral surface of the positioning portion 415 and the transmission box 31 to limit the position of the rotating connection portion 413. Further, the rotating surface is the outer peripheral wall of the rotating portion 414 on one side of the rotating groove, and the positioning groove is a directional arc length groove formed by the depression of the rotating surface, and the stopper rib is matched and limited to the positioning groove to realize the area limitation of the reciprocating rotation of the locking frame 41. Further preferably, the positioning groove is provided with positioning convex points 416 distributed at intervals to further limit the rotation position of the locking frame 41.

[0045] The locking frame 41 can be rotated by direct drive, for example, a part of the rotating surface of the locking frame 41 exceeds the transmission box 31 to directly drive the rotation. Alternatively, the locking frame 41 is driven to rotate by a gear mechanism.

[0046] like Figures 2 to 5As shown, the transmission assembly 30 includes a transmission shaft 32 disposed in a transmission box 31, a gear transmission mechanism is installed in the transmission box 31, and the transmission shaft 32 is used to transmit the power output by the power assembly 20 to the track assembly 10 through the gear transmission mechanism. Optionally, the transmission shaft 32 and the transmission groove constitute a plug-in transmission structure that is complementary or has a transmission fitting surface to achieve power transmission. In one embodiment, the transmission shaft 32 is rotatably inserted into the locking frame 41 and is coaxially arranged.

[0047] The locking frame 41 is provided with a transmission hole 412 which penetrates therethrough, and the transmission shaft 32 is inserted and connected to the transmission hole 412, so that the locking frame 41 is sleeved outside the transmission shaft 32, and the transmission shaft 32 can rotate relative to the locking frame 41. Preferably, the transmission shaft 32 is provided as a stepped shaft, and the transmission hole 412 is provided as a stepped hole, so as to limit the transmission shaft 32 to be pulled out on one side on one side.

[0048] The power assembly 20 is provided with a driving motor, and the power output end 23 of the driving motor is provided with a transmission groove. The transmission groove is provided with a transmission surface, for example, the transmission groove is provided as a spline groove, a concave gear groove, a triangular groove, a rectangular groove, a hexagonal groove and other groove structures with a plane. The power output end 23 is provided corresponding to the locking hole 21, and the transmission shaft 32 passes through the locking hole 21 and is plugged into the power output end 23. The locking hole 21 is a non-circular hole, which can be buckled into the locking groove 22 on the side of the locking hole 21 after the locking assembly 40 rotates, thereby realizing a barb locking structure, and realizing the rapid disassembly and assembly of the power assembly 20 and the transmission assembly 30. The transmission shaft 32 and the power output end 23 are plug-connected and form a power output structure. The transmission shaft 32 is coaxially connected with the locking assembly 40, and has high rotation flexibility and assembly consistency.

[0049] In a preferred embodiment, the locking hole 21 is a non-circular hole evenly distributed around the center. That is, the special-shaped curved surface of the locking hole 21 is evenly distributed along the center of the hole, and the locking assembly 40 is inserted into the locking hole 21 and rotated, and can be evenly inverted and connected with the locking groove 22 distributed on the peripheral wall of the locking hole 21. Preferably, the locking hole 21 can also be one of an elliptical hole, a triangular hole, a polygonal hole, a Chinese-shaped hole, etc. For example, the elliptical hole is a hole cross-section of the locking hole 21 that is elliptical, wherein the long end 211 is the long axis of the ellipse, and the short end 212 is the short axis. Optionally, the locking hole 21 is set as a triangular hole, wherein the long end 211 is the top corner fillet of the triangular hole, and the short end 212 is the triangular side.

[0050] The locking hole 21 is a non-circular hole with a balanced center, which can be adapted to a locking component 40 with a balanced distribution to achieve balanced force on the undercut connection part 413 and improve the connection tightness between the power component 20 and the transmission component 30.

[0051] In one embodiment, the transmission box 31 is provided with an avoidance notch 311, and the locking assembly 40 further includes a toggle handle 42, which extends from the locking frame 41 along the avoidance notch 311 to the outside of the transmission box 31. The toggle handle 42 is connected to the locking frame 41, so as to toggle the locking frame 41 to rotate to switch between the locked position and the unlocked position. The avoidance notch 311 penetrates the transmission box 31 and is in a long hole structure for the toggle handle 42 to rotate and toggle. Optionally, the toggle handle 42 and the locking frame 41 are fixedly connected by fasteners.

[0052] In a preferred embodiment, the toggle handle 42 and the locking frame 41 are detachably connected so that the toggle handle 42 and the locking frame 41 can be quickly disassembled and assembled. For example, the toggle handle 42 and the locking frame 41 are plug-fitted and connected. The outer peripheral wall of the locking frame 41 is provided with a plug-in hole, and the toggle handle 42 is plug-connected to the plug-in hole to form a quick plug-in positioning. Preferably, the plug-in hole is configured as a rectangular hole or a special-shaped hole, so that the plug-in part of the toggle handle 42 is adapted to the shape of the plug-in hole, and the two are connected by a tight-fitting plug-in connection.

[0053] like Figure 7 and Figure 8 As shown, the locking mechanism disclosed in the above embodiment is applied to a vertical curtain, wherein the vertical curtain includes a track assembly 10, a power assembly 20, a transmission assembly 30 and a locking mechanism, wherein the power assembly 20 and the track assembly 10 are arranged in parallel, and the power assembly 20 is installed on one side of the track assembly 10 to facilitate assembly and connection. The transmission assembly 30 is locked and connected to one end of the track assembly 10 by a fastener, specifically, the transmission assembly 30 is locked and connected to the end of the track assembly 10 by a transmission box 31 and a fastener. The power assembly 20 moves along the track assembly 10 and abuts against the transmission assembly 30, and the locking assembly 40 is plugged into the locking hole 21. Afterwards, the locking assembly 40 is rotated and engaged with the power assembly 20 to connect and fix the output end of the power assembly 20 to the locking assembly 40.

[0054] Further, the track assembly 10 includes a positioning member 50 connected to the other end of the power assembly 20. The positioning member 50 is assembled on the track assembly 10 and supports and fixes the other end of the power assembly 20 to improve the connection stability of the power assembly 20. Preferably, the positioning member 50 is plugged and connected to the other end of the power assembly 20, and defines the position of the power assembly 20 in the length direction of the track assembly 10. Optionally, the positioning member 50 includes a mounting portion 51 connected to the track assembly 10, a limiting portion 52 protruding from the mounting portion 51, and a plug-in column 53 protruding from the limiting portion 52, and a positioning hole is provided at the end of the power assembly 20. The mounting portion 51 is fixed along the length direction of the track assembly 10 so that the limiting portion 52 abuts against the outer peripheral wall of the power assembly 20, and the plug-in column 53 is plugged into the positioning hole to realize the positioning of the other end of the power assembly 20.

[0055] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0056] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A locking mechanism, characterized in that: The invention comprises a locking assembly (40), a locking hole (21) and a locking groove (22), wherein the locking assembly (40) is rotatably connected to one of a motor housing (24) and a transmission box (31), the locking hole (21) is arranged on the other of the motor housing (24) and the transmission box (31), the locking hole (21) is arranged corresponding to the locking assembly (40), and the locking groove (22) is communicated with the locking hole (21); The locking assembly (40) comprises a locking frame (41), wherein the locking frame (41) passes through the locking hole (21) and enters the locking groove (22) after rotation, forming an intersection with the locking hole (21).

2. The locking mechanism according to claim 1, characterized in that: The locking frame (41) is rotatably connected to the transmission box (31); the locking hole (21) is provided in the motor housing (24); and part of the locking frame (41) is inserted into the locking hole (21) and rotatably locked to the locking groove (22) when the motor housing (24) and the transmission box (31) are brought close to each other.

3. The locking mechanism according to claim 2, characterized in that: The locking frame (41) partially protrudes beyond the outer peripheral wall of the transmission box (31) to form a locking convex plate (411); the locking hole (21) comprises at least one long end (211) and at least one short end (212); the locking groove (22) is recessed relative to the hole wall of the locking hole (21) and the locking groove (22) extends from the long end (211) toward the short end (212); and the locking convex plate (411) is cross-locked with the locking hole (21).

4. The locking mechanism according to claim 3, characterized in that: The locking frame (41) comprises a rotating portion (414) and a connecting portion (413) protruding from the rotating portion (414); the rotating portion (414) is rotatably connected to the transmission box (31); the connecting portion (413) protrudes from the transmission box (31); and the locking convex plate (411) protrudes radially from the connecting portion (413).

5. The locking mechanism according to claim 3, characterized in that: The outer peripheral wall of the locking frame (41) is provided with a positioning portion (415), and the transmission box (31) is provided with a stop portion (312), the stop portion (312) is located in the rotation direction of the positioning portion (415), and the stop portion (312) is used to limit the positioning portion (415) to be in an unlocking position or a locking position.

6. The locking mechanism according to claim 5, characterized in that: The positioning portion (415) comprises a positioning groove located on the rotating surface, the stopping portion (312) is a stopping rib provided on the transmission box (31), and the locking frame (41) rotates to the positioning groove to limit the engagement with the stopping rib.

7. The locking mechanism according to claim 2, characterized in that: The locking assembly (40) further comprises a toggle handle (42), the transmission box (31) is provided with an escape notch (311), and the toggle handle (42) extends from the locking frame (41) along the escape notch (311) to the outside of the transmission box (31).

8. The locking mechanism according to claim 7, characterized in that: The toggle handle (42) and the locking frame (41) are detachably connected.

9. The locking mechanism according to claim 2, wherein: The transmission box (31) is provided with a transmission shaft (32), and the transmission shaft (32) is rotatably inserted into the locking frame (41) and is coaxially arranged.

10. A vertical blind, characterized in that: The invention comprises a track assembly (10), a power assembly, a transmission assembly (30) and a locking mechanism according to any one of claims 1 to 9, wherein the power assembly and the track assembly (10) are arranged in parallel, the transmission assembly (30) is connected to the end of the track assembly (10) through the transmission box (31), the locking assembly (40) is rotatably engaged with the power assembly, and the track assembly (10) comprises a positioning member (50) connected to the other end of the power assembly.

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