Shutter blind lifting driving device and hollow glass built-in shutter blind applying same

Abstract

The utility model provides a shutter blind lifting driving device and a hollow glass built-in shutter blind applying the same, and the shutter blind lifting driving device comprises a driving assembly which comprises a first shell, and a driving unit, a first output shaft and a first transmission mechanism are installed in the first shell; the transmission assembly comprises a second shell, an input shaft, a second output shaft and a second transmission mechanism are installed in the second shell, and the input shaft and the first output shaft are coaxially arranged and are in transmission connection; the second transmission mechanism comprises a worm coaxially installed on the input shaft and a worm gear arranged on one side of the worm. The worm gear is movably installed in the second shell, one end of the worm gear comprises oblique teeth meshed with the worm gear, and straight teeth are arranged at the other end of the worm gear at intervals. The driving assembly and the transmission assembly are modularly designed, a worm and gear structure is arranged in the transmission assembly, the transmission structure is simplified, the function of improving the self-locking force of the transmission assembly is achieved at the same time, space can be saved when the device is installed on a shutter blind arranged in hollow glass, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of venetian blinds, in particular to a venetian blind lifting drive device and a hollow glass built-in venetian blind using the same. Background Art

[0002] As a common form of curtains, venetian blinds are widely used in homes, offices and public places. The built-in venetian blinds in hollow glass combine the characteristics of hollow glass and venetian blinds. By embedding the venetian blinds between two layers of glass, it not only retains the good thermal insulation performance of hollow glass, but also gives the window sunshade, light control and other functions, achieving a perfect combination of beauty and practicality. Early venetian blind lifting devices were mostly manual. Although the operation was simple, the efficiency was low, and it was more laborious to operate for taller or heavier venetian blinds. With the development of electric technology, electric venetian blind lifting devices have gradually become popular. Users can easily control the lifting and angle adjustment of venetian blinds through a remote control or control panel, which greatly improves the efficiency of use.

[0003] Chinese patent CN218971081U discloses a blade transmission assembly and a blade drive device used therein, including an installation box, a fixed box is arranged inside the installation box, a transmission shaft is rotatably connected inside the fixed box, one end of the transmission shaft is connected to an external drive assembly, and the other end is used to drive the blades of the blinds to retract and unwind, and a friction block is also arranged inside the fixed box, the friction block is connected to the fixed box, and the friction block abuts against the outer peripheral wall of the transmission shaft. The friction block abuts against the outer peripheral wall of the transmission shaft to increase the friction force that needs to be overcome to drive the transmission shaft to rotate. This application has the effect of stably locking the blades.

[0004] However, this technical solution has the following problems: first, the blades are stably locked by the friction block and the transmission shaft, which causes great consumption of the friction block and affects its service life; second, the transmission assembly is equipped with a reducer, which has a complex structure and is not easy to install and maintain. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the prior art and provide a venetian blind lifting drive device. By arranging a worm gear structure in a transmission assembly, the transmission structure is simplified while the self-locking force of the transmission assembly is improved, so that it has higher reliability and service life, and solves the problems of low life of the locking mechanism, inconvenient installation and maintenance, etc.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A venetian blind lifting drive device, comprising:

[0008] A drive assembly, comprising a first housing, in which a drive unit, a first output shaft, and a first transmission mechanism for transmission connection between the drive unit and the first output shaft are installed;

[0009] A transmission assembly, comprising a second housing, in which an input shaft, a second output shaft and a second transmission mechanism for transmission connection between the input shaft and the second output shaft are installed, wherein the input shaft is coaxially arranged with the first output shaft and is transmission connected;

[0010] The second transmission mechanism includes a worm coaxially mounted on the input shaft and a worm wheel arranged on one side of the worm; the worm wheel is movably mounted in the second housing, one end of which includes helical teeth meshing with the worm, and the other end is provided with straight teeth spaced apart from the helical teeth.

[0011] As a preference, the second output shaft is rotatably mounted in the second housing, an inner end of the second output shaft is provided with driven teeth meshing with the spur teeth, and an outer end of the second output shaft is provided with a connecting groove.

[0012] Preferably, the first output shaft and the input shaft are in contactless transmission connection, the first output shaft is coaxially mounted with a first magnetic component, the input shaft is coaxially mounted with a second magnetic component, and the first magnetic component and the second magnetic component have corresponding end surfaces and are attracted to each other.

[0013] As a preference, the second shell is provided with a second rotation groove for accommodating the second magnetic member, and a protrusion structure is circumferentially provided at the edge of the second rotation groove.

[0014] As a preference, the input shaft and the worm are integrally arranged, and radial bearings rotatably connected to the second housing are mounted at both ends thereof.

[0015] Preferably, a thrust bearing is installed at one end of the outer side of the worm gear facing the second magnetic member, a mounting position is provided on the inner side of the end surface of the second rotating groove, and the other end of the thrust bearing abuts against the mounting position.

[0016] As a preferred embodiment, the first transmission mechanism comprises:

[0017] A reducer, the input shaft of which is drivingly connected to the output end of the drive unit;

[0018] A first bevel gear, mounted on the output end of the reducer and rotating synchronously therewith;

[0019] The second bevel gear is installed at the middle of the first output shaft and rotates synchronously with the first output shaft, and the second bevel gear is meshed with the first bevel gear.

[0020] Preferably, the first shell is provided with a first rotating groove, a fixing plate is installed on the outside of the first rotating groove, and the fixing plate is provided with an opening corresponding to the first rotating groove; the first magnetic part and the second bevel gear are abutted in the first rotating groove and the first magnetic part is located on the outside.

[0021] As a preference, the input shaft and the worm are integrally arranged, and are arranged perpendicular to the axial direction of the worm wheel; the second output shaft is arranged parallel to the axial direction of the worm wheel.

[0022] Preferably, a limit assembly is installed at the other end of the driving unit relative to the output end thereof, and the limit assembly includes a signal wheel that rotates synchronously with the output end of the driving unit and a Hall element that detects a signal from the signal wheel.

[0023] Another object of the utility model is to provide a built-in blind for hollow glass in view of the deficiencies in the prior art, by installing a modularly designed drive assembly and transmission assembly in the hollow glass, thereby saving space, making the blind more compact and easier to install and maintain.

[0024] A venetian blind built into a hollow glass comprises a hollow glass and a venetian blind arranged in the hollow glass, a window frame is installed on the top of the venetian blind, a control mechanism is arranged in the window frame, and the venetian blind also comprises the above-mentioned drive assembly and transmission assembly; the drive assembly is installed on the top of the hollow glass and is located on the outer side of the hollow glass facing the room, and the transmission assembly is installed in the window frame and is in transmission connection with the control mechanism.

[0025] The beneficial effects of the utility model are:

[0026] (1) The utility model adopts a modular design of the drive assembly and the transmission assembly, and arranges a worm gear structure in the transmission assembly, thereby simplifying the transmission structure and improving the self-locking force of the transmission assembly, thereby achieving smooth transmission of the venetian blind and ensuring stability and reliability during the lifting and lowering process of the venetian blind.

[0027] (2) The utility model improves the structural strength and shortens the axial length of the worm by arranging the input shaft and the worm in an integrated manner. A radial bearing is rotatably connected to the second housing and a thrust bearing is arranged to bear the axial load when the worm is running to protect the radial bearing, thereby improving the stability of the transmission and extending the service life of the transmission assembly.

[0028] (3) The utility model provides a protruding structure on the circumferential edge of the second rotating groove and installs a fixing plate on the outer side of the first rotating groove, thereby protecting the first magnetic part and the second magnetic part from damage during transportation and installation, thereby preventing the two from affecting their transmission effect through air.

[0029] (4) The utility model realizes precise control of the rotation angle of the drive unit through the cooperation of the signal wheel and the Hall element, thereby ensuring the precise positioning of the raising and lowering of the blinds.

[0030] In summary, the utility model has the advantages of stability, reliability, safety, etc., is compactly installed in the insulating glass, saves space, is easy to install and maintain, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0032] Figure 2 This is a schematic diagram of the internal structure of the drive assembly of the utility model;

[0033] Figure 3 This is a schematic cross-sectional view of the drive assembly of the utility model;

[0034] Figure 4 This is a schematic diagram of the bottom structure of the drive assembly of the utility model;

[0035] Figure 5 This is a schematic diagram of the transmission assembly structure of the utility model;

[0036] Figure 6 This is a schematic diagram of the internal structure of the transmission assembly of the utility model;

[0037] Figure 7 This is a cross-sectional structural diagram of the transmission assembly of the utility model;

[0038] Figure 8 This is a schematic diagram of the bottom structure of the transmission assembly of the utility model;

[0039] Fig. 9 It is a schematic diagram of the overall structure of the venetian blind of the utility model. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] Embodiment 1

[0043] like Figure 1-8 As shown, this embodiment provides a venetian blind lifting drive device, comprising: a drive assembly (1), which includes a first housing 11, in which a drive unit 12, a first output shaft 13 and a first transmission mechanism 14 for transmission connection between the drive unit 12 and the first output shaft 13 are installed; a transmission assembly 2, which includes a second housing 21, in which an input shaft 22, a second output shaft 23 and a second transmission mechanism 24 for transmission connection between the input shaft 22 and the second output shaft 23 are installed, and the input shaft 22 is coaxially arranged with the first output shaft 13 and is transmission connected.

[0044] The modular design of the drive assembly 1 and the transmission assembly 2 makes the entire device compact and more convenient to install and maintain.

[0045] The second transmission mechanism 24 includes a worm 241 coaxially mounted on the input shaft 22 and a worm wheel 242 arranged on one side of the worm 241; the worm 241 has continuous helical teeth, and the worm wheel 242 is movably mounted in the second housing 21, one end of which includes helical teeth 243 meshing with the worm 241, and the other end is provided with straight teeth 244 spaced apart from the helical teeth 243.

[0046] By arranging the worm wheel 242 and the worm 241 structure in the transmission assembly 2, the self-locking force of the transmission assembly 2 is improved while simplifying the transmission structure, thereby achieving smooth transmission of the blinds and ensuring stability and reliability during the raising and lowering process of the blinds.

[0047] like Figure 5-7As shown, the second output shaft 23 is rotatably mounted in the second housing 21 , and its inner end is provided with a driven tooth 231 meshing with the spur tooth 244 , and its outer end is provided with a connecting groove 232 .

[0048] like Figure 3-8 As shown, the first output shaft 13 and the input shaft 22 are non-contact transmission connected, and the bottom surfaces of the driving assembly 1 and the transmission assembly 2 are arranged correspondingly; the first output shaft 13 is coaxially mounted with a first magnetic component 3, and the input shaft 22 is coaxially mounted with a second magnetic component 4, and the end surfaces of the first magnetic component 3 and the second magnetic component 4 correspond to each other and are attracted to each other, so that when the first magnetic component 3 of the driving assembly 1 rotates, it can drive the second magnetic component 4 to rotate through the air.

[0049] like Figure 7 As shown, the second shell 21 is provided with a second rotation groove 211 for accommodating the second magnetic member 4 , and a protrusion structure 212 is circumferentially provided at the edge of the second rotation groove 211 , and the outer end surface of the second magnetic member 4 is lower than the protrusion structure 212 .

[0050] like Figure 2 , 3 As shown, the first transmission mechanism 14 includes: a reducer 141, the input shaft of the reducer 141 is transmission-connected to the output end of the drive unit 12; a first bevel gear 142, installed at the output end of the reducer 141 and rotates synchronously therewith; a second bevel gear 143, installed at the middle of the first output shaft 13 and rotates synchronously therewith, and the second bevel gear 143 is meshed with the first bevel gear 142; the drive unit 12, the reducer 141 and the first bevel gear 142 are coaxially arranged.

[0051] like Figure 3 , 4 As shown, the first shell 11 is provided with a first rotating groove 111, and a fixing plate 112 is installed on the outside of the first rotating groove 111. The fixing plate 112 is connected to the first shell 11 by a snap, and the fixing plate 112 is provided with an opening corresponding to the first rotating groove 111; the first magnetic component 3 and the second bevel gear 143 are abutted in the first rotating groove 111 and the first magnetic component 3 is located on the outside, and the outer end surface of the first magnetic component 3 is lower than the fixing plate 112.

[0052] By arranging a protruding structure 212 on the circumferential edge of the second rotating groove 211 and installing a fixing plate 112 on the outer side of the first rotating groove 111, the first magnetic component 3 and the second magnetic component 4 are protected to prevent damage to the two components during transportation and installation and use, thereby preventing the transmission effect through air from being affected.

[0053] like Figure 3As shown, the driving unit 12 is installed with a limit assembly 15 at the other end relative to its output end, and the limit assembly 15 includes a signal wheel 151 that rotates synchronously with the output end of the driving unit 12 and a Hall element 152 that detects the signal of the signal wheel 151. The signal wheel 151 is a strong magnetic signal wheel, and the Hall element 152 transmits the displacement signal of the driving unit 12 to an external control assembly to realize the control of the travel of the blinds.

[0054] Through the cooperation of the signal wheel 151 and the Hall element 152, the rotation angle of the drive unit 12 is accurately controlled, ensuring the precise positioning of the raising and lowering of the blinds.

[0055] Embodiment 2

[0056] like Figure 6 , 7 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is that the input shaft 22 and the worm 241 are integrally arranged, and radial bearings 25 rotatably connected to the second housing 21 are installed at both ends. A thrust bearing 26 is installed at one end of the outer side of the worm 241 facing the second magnetic member 4, and a mounting position 213 is provided on the inner side of the end face of the second rotating groove 211, and the other end of the thrust bearing 26 abuts against the mounting position 213. The worm 241 is arranged axially perpendicular to the worm wheel 242; the second output shaft 23 is arranged axially parallel to the worm wheel 242.

[0057] By integrally arranging the input shaft 22 and the worm 241, the structural strength is improved while the axial length of the worm 241 is shortened. The radial bearing 25 is rotatably connected to the second housing 21 and the thrust bearing 26 is provided to bear the axial load when the worm 241 is running to protect the radial bearing 25, thereby improving the stability of the transmission and extending the service life of the transmission assembly 2.

[0058] Embodiment 3

[0059] like Fig. 9 As shown, this embodiment provides a built-in venetian blind in an insulating glass, comprising an insulating glass 5 and a venetian blind 6 arranged in the insulating glass 5, a window frame 61 is installed on the top of the venetian blind 6, a control mechanism 62 is arranged in the window frame 61, and the driving assembly 1 and the transmission assembly 2 described in the first and second embodiments are also included; the driving assembly 1 and the transmission assembly 2 are installed on the top of the insulating glass 5, and the connecting groove 232 of the second output shaft 23 is connected to the input end of the control mechanism 62 so that the transmission assembly 2 is connected to the control mechanism 62 in a transmission manner. The driving assembly 1 is installed on the outer side of the insulating glass 5 facing the room, and the transmission assembly 2 is installed in the window frame 61.

[0060] It should be noted that, because the transmission assembly 2 is entirely installed inside the hollow glass 5, after the venetian blinds are installed, if there is a problem with the transmission assembly 2, the entire blinds must be removed to repair or replace the transmission assembly 2, so its reliability is particularly important. The utility model uses a worm gear 242 and a worm 241 to achieve transmission inside the hollow glass 5, and has high reliability.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A venetian blind lifting drive device, characterized in that: include: A drive assembly, comprising a first housing, in which a drive unit, a first output shaft, and a first transmission mechanism for transmission connection between the drive unit and the first output shaft are installed; A transmission assembly, comprising a second housing, in which an input shaft, a second output shaft and a second transmission mechanism for transmission connection between the input shaft and the second output shaft are installed, wherein the input shaft is coaxially arranged with the first output shaft and is transmission connected; The second transmission mechanism includes a worm coaxially mounted on the input shaft and a worm wheel arranged on one side of the worm; the worm wheel is movably mounted in the second housing, one end of which includes helical teeth meshing with the worm, and the other end is provided with straight teeth spaced apart from the helical teeth.

2. The venetian blind lifting drive device according to claim 1, characterized in that: The second output shaft is rotatably mounted in the second housing, and has an inner end provided with driven teeth meshing with the spur teeth, and an outer end provided with a connecting groove.

3. The venetian blind lifting drive device according to claim 1, characterized in that: The first output shaft and the input shaft are in contactless transmission connection. The first output shaft is coaxially mounted with a first magnetic component, and the input shaft is coaxially mounted with a second magnetic component. The end surfaces of the first magnetic component and the second magnetic component correspond to each other and are attracted to each other.

4. The venetian blind lifting drive device according to claim 3, characterized in that: The second shell is provided with a second rotation groove for accommodating the second magnetic member, and a protrusion structure is circumferentially provided at an outer edge of the second rotation groove.

5. The venetian blind lifting drive device according to claim 4, characterized in that: The input shaft and the worm are integrally arranged, and radial bearings rotatably connected to the second housing are installed at both ends of the input shaft.

6. The venetian blind lifting drive device according to claim 5, characterized in that: A thrust bearing is installed at one end of the outer side of the worm gear facing the second magnetic member, and a mounting position is arranged at the inner side of the end surface of the second rotating groove, and the other end of the thrust bearing abuts against the mounting position.

7. The venetian blind lifting drive device according to claim 3, characterized in that: The first transmission mechanism comprises: A reducer, the input shaft of which is drivingly connected to the output end of the drive unit; A first bevel gear, mounted on the output end of the reducer and rotating synchronously therewith; The second bevel gear is installed at the middle of the first output shaft and rotates synchronously with the first output shaft, and the second bevel gear is meshed with the first bevel gear.

8. The venetian blind lifting drive device according to claim 7, characterized in that: The first shell is provided with a first rotating groove, a fixing plate is installed on the outside of the first rotating groove, and the fixing plate is provided with an opening corresponding to the first rotating groove; the first magnetic component and the second bevel gear are abutted in the first rotating groove and the first magnetic component is located on the outside.

9. The venetian blind lifting drive device according to claim 1, characterized in that: The other end of the driving unit relative to the output end is equipped with a limit assembly, and the limit assembly includes a signal wheel that rotates synchronously with the output end of the driving unit and a Hall element that detects the signal of the signal wheel.

10. A venetian blind built into an insulating glass, comprising an insulating glass and a venetian blind arranged in the insulating glass, a window frame being installed on the top of the venetian blind, a control mechanism being arranged in the window frame, characterized in that: It also includes the drive assembly and transmission assembly described in any one of claims 1-9; the drive assembly is installed on the top of the insulating glass and is located on the outer side of the insulating glass facing the interior, and the transmission assembly is installed in the window frame and is transmission-connected to the control mechanism.

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