Auxiliary transmission case and vertical curtain

Abstract

The utility model relates to an auxiliary transmission case and a vertical curtain. The auxiliary transmission case is applied to a curtain track device of a curtain, the curtain track device comprises a track assembly and a transmission belt assembly connected to the track assembly, the transmission belt assembly comprises an auxiliary gear mechanism, the auxiliary gear mechanism is detachably connected to the track assembly, and the auxiliary transmission case is detachably connected to the track assembly. The auxiliary gear mechanism serves as a part of the transmission belt assembly and is detachably connected with the track assembly so as to facilitate independent disassembly, assembly and maintenance. The auxiliary transmission box is detachably connected to the track assembly and used in cooperation with the auxiliary gear mechanism, and maintenance and replacement of the transmission belt assembly and other structures can be facilitated.

Description

Technical Field

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

[0002] The vertical curtain is provided with a curtain track device, and the curtain track device is installed with a belt assembly, and the belt assembly is used to drive the hook assembly to open and close to realize the opening and closing action of the curtain. At the same time, the hook assembly is connected to a transmission rod, and the transmission rod is used to drive the hook assembly to rotate and dim, so as to realize different dimming angles.

[0003] The existing vertical curtain has a secondary transmission box installed at the end of the track assembly, and the pulley of the belt assembly and the connecting end of the hook assembly are installed in the secondary transmission box. When one of the hanging parts of the hook assembly fails and needs to be replaced, it is necessary to first remove the secondary transmission box, and then remove the hook assembly and the belt assembly to replace the damaged hanging part. Not only is it difficult to replace the hanging part, but also the transmission belt gear part is integrated with the secondary transmission box, which is difficult to assemble and debug. Therefore, improvements are needed. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the embodiments of the present utility model provide a curtain track device and a vertical curtain to solve the technical problems of difficulty in replacing hanging parts and difficulty in assembly and debugging.

[0005] According to a first aspect of an embodiment of the utility model, there is provided a sub-transmission box, which is applied to a curtain track device of a curtain, wherein the curtain track device comprises a track assembly and a transmission belt assembly connected to the track assembly, wherein the transmission belt assembly comprises a sub-gear mechanism, wherein the sub-gear mechanism is detachably connected to the track assembly, and the sub-transmission box is detachably connected to the track assembly.

[0006] In one embodiment, at least a portion of the auxiliary gear mechanism is located outside the auxiliary transmission case.

[0007] In one embodiment, the auxiliary transmission box is provided with a receiving chamber, and at least a part of the auxiliary gear mechanism is located in the receiving chamber.

[0008] In one embodiment, the sub-gear mechanism includes a gear frame and a pulley rotatably mounted on the gear frame, and the gear frame is detachably connected to the track assembly.

[0009] In one embodiment, the gear rack is engaged and clamped in the lateral guide groove of the track assembly.

[0010] In one embodiment, the gear rack includes an assembly part and a connecting part, the connecting part is provided with an installation cavity, the pulley is rotatably connected to the connecting part, at least part of the pulley is located in the installation cavity, the assembly part is assembled to the track assembly, and the assembly part has a belt hole connected to the installation cavity.

[0011] In one embodiment, the auxiliary transmission case is pressed onto the gear rack.

[0012] In one embodiment, the auxiliary transmission box is provided with at least one positioning column, and the positioning column is plug-connected to the track assembly.

[0013] The second aspect of the utility model discloses a vertical curtain, comprising a dual-drive output device, a dual-input transmission device, a curtain track device and the auxiliary transmission box as described above, wherein the curtain track device comprises a hook assembly sliding on the track assembly, the dual-drive output device is drivingly connected to the dual-input transmission device, the dual-input transmission device and the auxiliary transmission box are respectively located at two ends of the curtain track device, and the dual-input transmission device is drivingly connected to the drive belt assembly and the hook assembly respectively to drive the hook assembly to open and close and / or dim.

[0014] In one embodiment, the auxiliary transmission box is provided with an opening, and the opening is used for allowing part of the hook assembly to pass and move to the auxiliary transmission box.

[0015] The technical solution provided by the embodiment of the utility model can include the following beneficial effects: the auxiliary gear mechanism is a part of the transmission belt assembly, and the auxiliary gear mechanism is detachably connected to the track assembly to facilitate independent disassembly and maintenance. The auxiliary transmission box is detachably connected to the track assembly and used in conjunction with the auxiliary gear mechanism, which can facilitate the maintenance and replacement of the transmission belt assembly and other structures.

[0016] 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

[0017] 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.

[0018] Figure 1 is a schematic structural diagram showing a vertical blind according to an exemplary embodiment.

[0019] Figure 2 It is a schematic diagram showing a structure in which a secondary transmission box in a vertical blind is hidden according to an exemplary embodiment.

[0020] Figure 3The diagram is a partial enlarged cross-sectional schematic diagram showing a curtain track device according to an exemplary embodiment.

[0021] Figure 4 The diagram shows an exploded structure of an auxiliary transmission box according to an exemplary embodiment.

[0022] Figure 5 The figure is a schematic structural diagram showing an auxiliary transmission box according to an exemplary embodiment.

[0023] In the figure, the curtain track device 10; the track assembly 11; the lateral guide groove 111; the guide groove 112; the auxiliary gear mechanism 12; the gear frame 121; the connecting portion 1211; the assembly portion 1212; the plug-in support leg 1213; the belt hole 1214; the installation cavity 1215; the pulley 122; the hook assembly 13; the dimming unit 131; the buckle 132; the transmission belt assembly 14; the dual drive output device 20; the dual input transmission device 30; the auxiliary transmission box 40; the receiving cavity 41; the arc-shaped recessed portion 411; the positioning column 42; the extension groove 43; and the opening 44. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] like Figures 1 to 3 As shown, the utility model provides an auxiliary transmission box, and the auxiliary transmission box 40 is applied to a curtain track device 10 of a curtain, and the curtain track device 10 includes a track component 11 and a transmission belt component 14 connected to the track component 11. The track component 11 is provided with a track profile, and the track profile is a long strip profile. The curtain track device 10 is equipped with a hook component 13, and the hook component 13 and the transmission belt component 14 are independently installed on the track component 11 in parallel, and the transmission belt component 14 and the auxiliary transmission box 40 are installed on the track profile and assembled and connected along the length direction of the track profile.

[0028] The auxiliary transmission box 40 is installed at the end of the track assembly 11, and the transmission belt assembly 14 includes a auxiliary gear mechanism 12, which is detachably connected to the track assembly 11, and the auxiliary transmission box 40 is detachably connected to the track assembly 11. As a part of the transmission belt assembly 14, the auxiliary gear mechanism 12 is detachably connected to the track assembly 11 to facilitate independent disassembly and maintenance. The auxiliary transmission box 40 is detachably connected to the track assembly 11 and used in conjunction with the auxiliary gear mechanism 12 to facilitate the maintenance and replacement of the transmission belt assembly 14 and the hook assembly 13.

[0029] In one embodiment, at least part of the sub-gear mechanism 12 is located outside the sub-transmission box 40. The sub-gear mechanism 12 and the sub-transmission box 40 are independently installed on the track assembly 11, wherein the sub-gear mechanism 12 is connected to a transmission belt, and the transmission belt moves under power drive to drive the hook assembly 13 to open and close. The sub-gear mechanism 12 is located above the sub-transmission box 40, and the sub-transmission box 40 closes the end of the track assembly 11. Preferably, the sub-transmission box 40 is covered by the hook assembly 13.

[0030] like Figures 2 to 5 As shown, in another embodiment, the auxiliary transmission box 40 is provided with a receiving cavity 41, and at least part of the auxiliary gear mechanism 12 is located in the receiving cavity 41. The auxiliary transmission box 40 is a thin-walled shell structure, and the opening of the receiving cavity 41 is located at the connection portion 1211 of the auxiliary transmission box 40 and the track assembly 11. The auxiliary transmission box 40 is connected to the track assembly 11, and covers part of the auxiliary gear mechanism 12 or all of the auxiliary gear mechanism 12 to protect the auxiliary gear mechanism 12 and improve the aesthetics.

[0031] In the above embodiment, the secondary gear mechanism 12 includes a gear frame 121 and a pulley 122 rotatably mounted on the gear frame 121, and the gear frame 121 is detachably connected to the track assembly 11. The gear frame 121 is a rigid structural member, which is connected to the track assembly 11 to achieve independent installation, and the assembly and disassembly of the secondary transmission box 40 has no direct impact on the secondary gear mechanism 12. The pulley 122 is mounted on the gear frame 121 and connected to the transmission belt, and the transmission belt can rotate relative to the gear frame 121.

[0032] The gear rack 121 is positioned and connected with the track assembly 11 to improve the controllability of the matching position between the pulley 122, the gear rack 121 and the track assembly 11. The track assembly 11 is a formed profile, and lateral guide grooves 111 are provided on both sides of the track assembly 11. The lateral guide grooves 111 can be set as dovetail grooves, T-shaped grooves or other groove structures with the same limiting effect. The gear rack 121 is engaged and clamped in the lateral guide grooves 111 of the track assembly 11 to achieve the installation and positioning of the gear rack 121.

[0033] Optionally, the gear rack 121 includes an assembly portion 1212 and a connecting portion 1211, and the assembly portion 1212 is assembled to the track assembly 11. Preferably, the assembly portion 1212 is provided with a plug-in leg 1213 adapted to the lateral guide groove 111 of the track assembly 11, and the plug-in leg 1213 is plugged into the lateral guide groove 111 to achieve plug-in positioning. The assembly portion 1212 abuts against the end of the track assembly 11 to maintain the consistency of the assembly position.

[0034] The connection part 1211 is provided with a mounting cavity 1215, and the pulley 122 is rotatably connected to the connection part 1211. The pulley 122 is rotatably connected to the connection part 1211 through a rotating shaft. At least part of the pulley 122 is located in the mounting cavity 1215, and the mounting cavity 1215 provides protection for the pulley 122 and reduces the overall size. The assembly part 1212 is provided with a belt hole 1214 connected to the mounting cavity 1215, and the transmission belt passes through the belt hole 1214 and is tensioned on the pulley 122. The cavity wall of the mounting cavity 1215 cooperates with the pulley 122 to limit the transmission belt, so as to maintain the stability of the transmission of the transmission belt.

[0035] Preferably, the accommodating cavity 41 is provided with an arc-shaped recessed portion 411, and the arc-shaped recessed portion 411 matches the shape of the connecting portion 1211. The auxiliary transmission box 40 supports and positions the gear rack 121, further improving the tightness of the matching between the auxiliary transmission box 40 and the gear rack 121.

[0036] like Figures 2 to 5As shown, in a preferred embodiment, the auxiliary transmission box 40 is pressed on the gear rack 121, and the auxiliary transmission box 40 is detachably connected to the track assembly 11. The gear rack 121 is plugged into the track assembly 11 to perform matching positioning. The auxiliary transmission box 40 is locked and fixed to the track assembly 11 by fasteners, and the auxiliary transmission box 40 is pressed and assembled on the gear rack 121, which can not only reduce the assembly difficulty of the gear rack 121, but also improve the connection tightness between the auxiliary transmission box 40 and the gear rack 121. Preferably, the connecting portion 1211 is partially protruded from one side of the assembly portion 1212, and a step structure is formed between the connecting portion 1211 and the assembly portion 1212. The auxiliary transmission box 40 is covered on the connecting portion 1211 and abuts against the step surface of the assembly portion 1212. The fasteners lock the auxiliary transmission box 40 and keep it away from the gear rack 121, and the assembly effect is good.

[0037] Furthermore, the auxiliary transmission box 40 is provided with at least one positioning column 42, and the positioning column 42 is plugged and connected to the track assembly 11. The positioning column 42 protrudes from the end surface of the auxiliary transmission box 40 in a columnar shape, and the position of the positioning column 42 matches the molding groove of the track assembly 11. The auxiliary transmission box 40 abuts against the track assembly 11, and the positioning column 42 is plugged and positioned with the track assembly 11 to improve the assembly accuracy of the auxiliary transmission box 40. Preferably, the positioning column 42 is away from the gear rack 121, and the gear rack 121 and the track assembly 11 are plugged and positioned at the same time, and the auxiliary transmission box 40 and the gear rack 121 are both positioned with the track assembly 11, and the assembly consistency is high.

[0038] In a preferred embodiment, the cross-sectional profile size of the auxiliary transmission box 40 is less than or equal to the cross-sectional profile size of the track assembly 11. In this embodiment, the auxiliary transmission box 40 closes the end surface of the track assembly 11, and the cross-sections of the two are basically the same to improve the aesthetics. Preferably, the auxiliary transmission box 40 is configured as a rectangular thin-walled structural member, and the outer peripheral wall of the auxiliary transmission box 40 is flush with the outer peripheral wall of the track assembly 11.

[0039] like Figures 1 to 4 As shown, the auxiliary transmission box 40 disclosed in the above embodiment is applied to a vertical curtain, wherein the vertical curtain includes a dual drive output device 20, a dual input transmission device 30, a curtain track device 10 and an auxiliary transmission box 40, and the curtain track device 10 includes a hook assembly 13 sliding on the track assembly 11. The dual drive output device 20 is drivingly connected to the dual input transmission device 30, and the dual input transmission device 30 and the auxiliary transmission box 40 are respectively located at both ends of the track assembly 11. The dual input transmission device 30 drives and connects the hook assembly 13 and the transmission belt assembly 14 respectively to drive the hook assembly 13 to open and close and / or dim. The dual input transmission device 30 can control the hook assembly 13 and the transmission belt assembly 14 to move independently, and the hook assembly 13 and the transmission belt assembly 14 can be independently assembled and replaced, and maintenance and installation are convenient.

[0040] The auxiliary transmission box 40 is a thin-walled shell structure, and the auxiliary transmission box 40 is installed at the end of the track assembly 11 to close the end of the track assembly 11. The hook assembly 13 and the transmission belt assembly 14 are installed independently. If the components in the hook assembly 13 are damaged, there is no need to remove the transmission belt assembly 14, which improves the maintenance efficiency. The transmission belt assembly 14 and the hook assembly 13 can be maintained independently and installed independently, and the assembly efficiency is high.

[0041] Among them, the mounting end of the hook assembly 13 and the mounting end of the transmission belt assembly 14 protrude from the end of the track profile, and the auxiliary transmission box 40 is locked to the track profile by screws, and the auxiliary transmission box 40 covers the mounting end of the hook assembly 13 and the mounting end of the transmission belt assembly 14. The auxiliary transmission box 40 covers and protects the mounting end of the hook assembly 13 and the mounting end of the transmission belt assembly 14, thereby achieving a protective effect with good protective effect.

[0042] The hook assembly 13 includes at least one buckle 132 connected to the transmission belt assembly 14, and the buckle 132 is used to connect and position a dimming unit 131. The transmission belt assembly 14 drives the transmission belt to rotate, and the buckle 132 drives the connected dimming unit 131 to move closer to or away from other dimming units 131 to achieve opening and closing adjustment. Preferably, the buckle 132 is connected to the first dimming unit 131, and the auxiliary transmission box 40 is provided with an extension groove 43 that coincides with the guide groove 112 in the track assembly 11. The first dimming unit 131 slides along the guide groove 112 and can enter the extension groove 43, so that the first dimming unit 131 is at least partially located in the auxiliary transmission box 40, which is convenient for replacement and adjustment.

[0043] In one embodiment, the auxiliary transmission box 40 is provided with an opening, and the opening is used for part of the hook assembly 13 to pass through and move to the auxiliary transmission box 40. The lower part of the auxiliary transmission box 40 is provided with an opening 44, and the opening 44 is located in the extension direction of the slot on the track assembly 11. The first dimming unit 131 moves along the track assembly 11 into the opening 44 of the auxiliary transmission box 40. The auxiliary transmission box 40 can accommodate part of the hook assembly 13. After the auxiliary transmission box 40 is removed, it is convenient to disassemble, assemble and replace the dimming unit 131.

[0044] 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.

[0045] 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. An auxiliary transmission box, applied to a curtain track device (10) of a curtain, the curtain track device (10) comprising a track assembly (11) and a transmission belt assembly (14) connected to the track assembly (11), characterized in that: The transmission belt assembly (14) comprises a secondary gear mechanism (12), the secondary gear mechanism (12) being detachably connected to the track assembly (11), and the secondary transmission box (40) being detachably connected to the track assembly (11).

2. The auxiliary transmission box according to claim 1, characterized in that: At least a portion of the auxiliary gear mechanism (12) is located outside the auxiliary transmission box (40).

3. The auxiliary transmission box according to claim 1, characterized in that: The auxiliary transmission box (40) is provided with a receiving chamber (41), and at least a portion of the auxiliary gear mechanism (12) is located in the receiving chamber (41).

4. The auxiliary transmission box according to claim 3, characterized in that: The secondary gear mechanism (12) comprises a gear frame (121) and a pulley (122) rotatably mounted on the gear frame (121); the gear frame (121) is detachably connected to the track assembly (11).

5. The auxiliary transmission box according to claim 4, characterized in that: The gear rack (121) is engaged and clamped in the lateral guide groove (111) of the track assembly (11).

6. The auxiliary transmission box according to claim 4, characterized in that: The gear rack (121) comprises an assembly portion (1212) and a connecting portion (1211); the connecting portion (1211) is provided with a mounting cavity (1215); the pulley (122) is rotatably connected to the connecting portion (1211); at least a portion of the pulley (122) is located in the mounting cavity (1215); the assembly portion (1212) is assembled to the track assembly (11); and the assembly portion (1212) is provided with a belt hole (1214) that is in communication with the mounting cavity (1215).

7. The auxiliary transmission box according to claim 4, characterized in that: The auxiliary transmission box (40) is pressed onto the gear rack (121).

8. The auxiliary transmission box according to claim 4, characterized in that: The auxiliary transmission box (40) is provided with at least one positioning column (42), and the positioning column (42) is plug-connected to the track assembly (11).

9. A vertical blind, characterized in that: The curtain track device (10) comprises a dual drive output device (20), a dual input transmission device (30), a curtain track device (10), and an auxiliary transmission box (40) as claimed in any one of claims 1 to 8, wherein the curtain track device (10) comprises a hook assembly (13) sliding on the track assembly (11), the dual drive output device (20) is drivingly connected to the dual input transmission device (30), the dual input transmission device (30) and the auxiliary transmission box (40) are respectively located at two ends of the curtain track device (10), and the dual input transmission device (30) is drivingly connected to the drive belt assembly (14) and the hook assembly (13) respectively, so as to drive the hook assembly (13) to open and close and / or dim.

10. The vertical blind according to claim 9, characterized in that: The auxiliary transmission box (40) is provided with an opening (44), and the opening (44) is used to allow part of the hook assembly (13) to pass and move to the auxiliary transmission box (40).

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