Curtain transmission case capable of manually dimming and vertical curtain thereof

Abstract

The utility model relates to the technical field of curtains, and discloses a curtain transmission case capable of manually dimming and a vertical curtain thereof, the key points of the technical scheme are that the curtain transmission case comprises a shell, a manual wheel and an input part arranged on the shell, a transmission assembly is in transmission connection between the input part and a dimming rod, and the transmission assembly comprises transmission teeth; a first clutch mechanism is arranged between the transmission gear and the manual wheel, and due to the arrangement of the first clutch mechanism, when the transmission gear in the transmission assembly rotates, the manual wheel does not rotate; when the motor does not work and the manual wheel is rotated through external force, the transmission gear rotates through the action of the first clutch mechanism, so that manual dimming is achieved, the functions of manual dimming and electric dimming can be integrated, dimming of the blades at any angle can be conducted during manual dimming, and dimming is not limited by the electric dimming angle.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, and more particularly to a curtain transmission box capable of manual dimming and a vertical curtain thereof. Background Art

[0002] The electric vertical blinds adopt a swing-leaf structure. The blades can rotate 180 degrees. The dimming and opening and closing of the curtains are achieved through the mechanical transmission of the motor. On the one hand, it can adjust the brightness of the indoor light and allow ventilation. On the other hand, it can achieve the purpose of sunshade. Electric vertical blinds are widely used in families.

[0003] In the existing electric vertical curtains, the motor and the dimming rod are connected by a transmission assembly, wherein the transmission assembly is mostly composed of gears, and the hook assembly is connected to the dimming rod. The rotation of the dimming rod drives the rotation of the hook in the hook assembly, thereby realizing the rotation dimming of the blades. However, the electric dimming method generally sets several commonly used dimming angles, such as 30 degrees, 60 degrees and 90 degrees, etc., and the dimming angle has certain limitations. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a curtain transmission box and vertical curtain capable of manual dimming, so as to realize manual and electric dimming in one, so that the dimming angle is not limited.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manually dimming curtain transmission box, comprising a shell, a manual wheel and an input part arranged on the shell, a transmission assembly is connected between the input part and the dimming rod, the transmission assembly includes transmission teeth, and a first clutch mechanism is arranged between the transmission teeth and the manual wheel.

[0006] As a further improvement of the present invention, the first clutch mechanism is an electromagnetic clutch.

[0007] As a further improvement of the present invention, one end of the input part is connected to the motor, and a transmission tooth surface is formed on the other end of the input part, and the transmission tooth surface is transmission-connected to the transmission assembly.

[0008] As a further improvement of the present invention, the transmission assembly further includes an output tooth, the output tooth is meshed with the transmission tooth, and the output tooth is connected to the dimming rod.

[0009] As a further improvement of the present invention, the input portion is meshed with the output teeth or the transmission teeth.

[0010] As a further improvement of the utility model, the manual wheel is a sprocket, the sprocket is connected with chain beads, and the shell is provided with through holes for the chain beads to pass through.

[0011] As a further improvement of the present utility model, the first clutch mechanism includes a clutch part, a magnetic bead and a metal ring, the clutch part includes a clutch end and a connecting end, the connecting end is connected to the manual wheel, the metal ring is sleeved on the connecting end and connected to the shell, the two magnetic beads are respectively located on both sides of the clutch end and adsorbed on the metal ring, a clutch cavity is provided on the transmission tooth, at least the clutch end is located in the clutch cavity, and the inner wall of the clutch cavity is provided with two grooves.

[0012] As a further improvement of the utility model, at least one first engaging surface is formed on the metal ring, a engaging cavity is provided in the shell, at least one second engaging surface is formed in the engaging cavity, and the first engaging surface cooperates with the second engaging surface.

[0013] As a further improvement of the present utility model, a bearing is connected between the transmission tooth and the housing.

[0014] A vertical curtain comprises the above-mentioned manually dimming curtain transmission box and a motor, wherein the motor comprises a motor and an output part, the output part is connected to the input part, and a second clutch mechanism is arranged between the motor and the output part.

[0015] The beneficial effects of the utility model are as follows: the setting of the first clutch mechanism in the utility model ensures that when the transmission teeth in the transmission assembly are rotating, the manual wheel does not rotate; when the motor is not working, when the manual wheel is rotated by external force, the transmission teeth rotate through the action of the first clutch mechanism, thereby realizing manual dimming, and the functions of manual dimming and electric dimming can be integrated. During manual dimming, the blades can be dimmed at any angle, and the dimming is not limited by the electric dimming angle. The input part is meshed with the transmission teeth, and the transmission teeth are meshed with the output teeth. The power of the input part is transmitted to the output teeth after being transmitted by the transmission teeth, so that the transmission teeth are located between the input part and the output teeth. On the one hand, it is convenient to set the manual wheel, and on the other hand, the space in the transmission box can be arranged more reasonably. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the vertical blind structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the transmission box part of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure inside the transmission box of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the through hole in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the manual wheel in the utility model;

[0021] Figure 6 It is a structural schematic diagram of the transmission gear in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the first clutch mechanism in the utility model;

[0023] Figure 8 It is a structural schematic diagram of the clutch member in the utility model;

[0024] Fig. 9 It is a structural schematic diagram of the inner shell in the utility model.

[0025] Figure numerals: 1, shell; 11, through hole; 12, engaging cavity; 121, second engaging surface; 13, bearing; 14, first outer shell; 15, second outer shell; 16, inner shell; 2, manual wheel; 3, input part; 31, transmission tooth surface; 4, dimming rod; 5, transmission assembly; 51, transmission tooth; 511, clutch cavity; 512, groove; 52, output tooth; 61, clutch member; 611, clutch end; 612, connecting end; 62, magnetic bead; 63, metal ring; 631, first engaging surface. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] Reference Figures 1 to 5 As shown, a manually dimming curtain transmission box of this embodiment includes a shell 1, a manual wheel 2 and an input part 3 arranged on the shell 1, the input part 3 is connected to the motor, and power is input to the input part 3 through the motor, so that the input part 3 rotates; wherein, the shell 1 includes a first shell 14 and a second shell 15, and the first shell 14 and the second shell 15 are detachably connected by bolts, so as to facilitate the disassembly and assembly of the mechanism in the shell 1.

[0028] A transmission assembly 5 is connected between the input part 3 and the dimming rod 4. The rotational movement of the input part 3 is transmitted to the dimming rod 4 through the transmission assembly 5, so that the dimming rod 4 rotates. The dimming rod 4 is connected to the hook assembly, so that the hook on the hook assembly rotates to achieve dimming of the vertical curtain. The transmission assembly 5 includes a transmission tooth 51. A first clutch mechanism is provided between the transmission tooth 51 and the manual wheel 2. The first clutch mechanism is provided so that when the transmission tooth 51 in the transmission assembly 5 rotates, the manual wheel 2 does not rotate.

[0029] When the motor is not working, when the manual wheel 2 is rotated by external force, the transmission tooth 51 rotates through the action of the first clutch mechanism, thereby realizing manual dimming.

[0030] Of course, there is a clutch function in the structure of the motor, so that when the motor in the motor outputs, the power can be output through the clutch function; when the manual wheel 2 rotates, the input part 3 will rotate through the transmission component 5, and the motor will not be affected by the existence of the clutch function;

[0031] Therefore, the functions of manual dimming and electric dimming can be integrated. When manually dimming, the blades can be dimmed at any angle, and the dimming is not limited by the electric dimming angle.

[0032] The first clutch mechanism may be an electromagnetic clutch, which is a prior art and can realize a clutch function.

[0033] Reference Figure 1 , Figure 2 As shown, one end of the input part 3 is connected to the motor, and the input part 3 can be a spline groove or a spline shaft. Of course, when the input part 3 is a spline groove, the output part of the motor is a spline shaft; when the input part 3 is a spline shaft, the output part of the motor is a spline groove. The two can be replaced with each other without limitation, as long as transmission can be achieved.

[0034] The input part 3 is rotationally connected to the housing 1 via a shaft.

[0035] A transmission tooth surface 31 is formed on the other end of the input part 3, and the transmission tooth surface 31 is transmission-connected to the transmission assembly 5. In the present embodiment, the transmission tooth surface 31 meshes with the transmission tooth 51. Of course, there may be a pair of gears between the transmission tooth surface 31 and the transmission tooth 51 for meshing. Preferably, the transmission tooth surface 31 directly meshes with the transmission tooth 51.

[0036] Reference Figure 4 and Figure 5As shown, the transmission assembly 5 further includes an output tooth 52, the output tooth 52 is meshed with the transmission tooth 51, the output tooth 52 is connected to the dimming rod 4, and a plurality of gears can be arranged between the output tooth 52 and the transmission tooth 51 for transmission. Preferably, the output tooth 52 is directly meshed with the transmission tooth 51;

[0037] The output tooth 52 includes a plug-in end and an output tooth surface, wherein a plug-in groove is formed on the plug-in end, and the cross-section of the plug-in groove is polygonal. The cross-section of the dimming rod 4 is the same shape as the cross-section of the plug-in groove, so that the end of the dimming rod 4 can be inserted into the plug-in groove, and when the output tooth 52 rotates, the dimming rod 4 can be driven to rotate, thereby realizing dimming.

[0038] Reference Figure 4 , Figure 5 As shown, the input part 3 is meshed with the output teeth 52 or the transmission teeth 51. In one embodiment, the input part 3 is meshed with the output teeth 52, and the transmission between the input part 3 and the output teeth 52 does not pass through the transmission teeth 51. The input part 3 directly transmits power to the output teeth 52, and then drives the dimming rod 4 to rotate through the output teeth 52;

[0039] In a preferred embodiment, the input part 3 is meshed with the transmission teeth 51, and the transmission teeth 51 are meshed with the output teeth 52. The power of the input part 3 is transmitted to the output teeth 52 after being transmitted by the transmission teeth 51. This scheme makes the transmission teeth 51 located between the input part 3 and the output teeth 52. On the one hand, it is convenient for the setting of the manual wheel 2. On the other hand, the space in the transmission box is arranged more reasonably.

[0040] The manual wheel 2 is a sprocket, and a chain bead is connected to the sprocket. A through hole 11 for the chain bead to pass through is opened on the shell 1. The shape of the through hole 11 is not limited. The through hole 11 can be a large hole connecting the two sides of the chain bead, or it can be two small holes, and the two sides of the chain bead pass through the corresponding small holes respectively.

[0041] Reference Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the first clutch mechanism includes a clutch member 61, a magnetic bead 62 and a metal ring 63. Preferably, the material of the metal ring 63 is iron, and it cooperates with the magnetic bead 62 to adsorb the magnetic bead 62.

[0042] The clutch 61 includes a clutch end 611 and a connecting end 612, the connecting end 612 is connected to the manual wheel 2, the metal ring 63 is sleeved on the connecting end 612 and connected to the housing 1, the two magnetic beads 62 are respectively located on both sides of the clutch end 611 and adsorbed on the metal ring 63, a clutch cavity 511 is provided on the transmission tooth 51, at least the clutch end 611 is located in the clutch cavity 511, the inner wall of the clutch cavity 511 is provided with two grooves 512, the metal ring 63 includes a ring body and a positioning body integrally formed with the ring body, the positioning body is sleeved on the connecting end 612, there is a certain gap between the ring body and the inner wall of the clutch cavity 511, when the clutch 61 does not rotate, the magnetic beads 62 are adsorbed on the ring body, so that the magnetic beads 62 can be completely separated from the grooves 512, when the motor rotates, it will drive the transmission tooth 51 to transmit, but will not affect the manual wheel 2;

[0043] When the manual wheel 2 rotates, the manual wheel 2 will drive the clutch 61 to rotate, and the magnetic bead 62 will be stuck in the corresponding groove 512 under the action of a certain centrifugal force, so that the clutch 61 can drive the transmission tooth 51 to rotate through the magnetic bead 62, and transmit the power to the output tooth 52, thereby realizing dimming and realizing the functions of manual and electric integration.

[0044] At least one first engaging surface 631 is formed on the metal ring 63, wherein the first engaging surface 631 is formed on the positioning body. Preferably, two first engaging surfaces 631 are provided, and the two first engaging surfaces 631 are arranged opposite to each other. A engaging cavity 12 is provided in the housing 1, and at least one second engaging surface 121 is formed in the engaging cavity 12. The first engaging surface 631 cooperates with the second engaging surface 121, and the number of the second engaging surfaces 121 and the first engaging surface 631 is the same, so as to increase the degree of engagement between the positioning body on the metal ring 63 and the housing 1.

[0045] The engaging cavity 12 is formed on the inner shell 16 .

[0046] Reference Figure 7 As shown, a bearing 13 is connected between the transmission tooth 51 and the housing 1 , wherein a pillar is formed in the first housing 14 , and the bearing 13 is fixedly connected to the pillar. The pillar forms a support for the bearing 13 , and the bearing 13 increases the rotation stability of the transmission tooth 51 .

[0047] A vertical curtain comprises the above-mentioned manually dimming curtain transmission box and a motor, wherein the motor comprises a motor and an output part, the output part is connected to the input part 3, and a second clutch mechanism is arranged between the motor and the output part.

[0048] The output part includes a first output end and a second output end, and the motor is provided with two, corresponding to the first output end and the second output end respectively, the first output end is connected to the input part 3, and the second output end is connected to the opening and closing structure of the vertical curtain;

[0049] That is, the first output end controls the dimming of the vertical curtain, and the second output end controls the opening and closing of the vertical curtain;

[0050] A second clutch mechanism is provided between each motor and the corresponding first output end or second output end, wherein the second clutch mechanism may be an electromagnetic clutch, or a clutch structure similar to the structure of the first clutch mechanism in the present application, and similar clutch structures are widely used in existing curtain motors and can also play a clutch function;

[0051] The second clutch mechanism can ensure that the motor is not affected during manual dimming.

[0052] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A manually dimming curtain transmission box, characterized in that: The invention comprises a housing (1), a manual wheel (2), and an input portion (3) arranged on the housing (1); a transmission assembly (5) is connected in transmission between the input portion (3) and a dimming rod (4); the transmission assembly (5) comprises a transmission tooth (51); and a first clutch mechanism is arranged between the transmission tooth (51) and the manual wheel (2).

2. A manually dimming curtain transmission box according to claim 1, characterized in that: The first clutch mechanism is an electromagnetic clutch.

3. The manually dimming curtain transmission box according to claim 1, characterized in that: One end of the input part (3) is connected to the motor, and a transmission tooth surface (31) is formed on the other end of the input part (3), and the transmission tooth surface (31) is transmission-connected to the transmission assembly (5).

4. The manually dimming curtain transmission box according to claim 1, characterized in that: The transmission assembly (5) further comprises an output tooth (52), wherein the output tooth (52) meshes with the transmission tooth (51), and the output tooth (52) is connected to the dimming rod (4).

5. A manually dimming curtain transmission box according to claim 4, characterized in that: The input portion (3) meshes with the output teeth (52) or the transmission teeth (51).

6. The manually dimming curtain transmission box according to claim 1, characterized in that: The manual wheel (2) is a sprocket wheel, a chain bead is connected to the sprocket wheel, and a through hole (11) for the chain bead to pass through is provided on the housing (1).

7. The manually dimming curtain transmission box according to claim 1, characterized in that: The first clutch mechanism comprises a clutch member (61), a magnetic bead (62) and a metal ring (63); the clutch member (61) comprises a clutch end (611) and a connecting end (612); the connecting end (612) is connected to the manual wheel (2); the metal ring (63) is sleeved on the connecting end (612) and connected to the housing (1); the two magnetic beads (62) are respectively located on both sides of the clutch end (611) and adsorbed on the metal ring (63); a clutch cavity (511) is provided on the transmission tooth (51); at least the clutch end (611) is located in the clutch cavity (511); and the inner wall of the clutch cavity (511) is provided with two grooves (512).

8. The manually dimming curtain transmission box according to claim 7, characterized in that: At least one first engaging surface (631) is formed on the metal ring (63), a engaging cavity (12) is provided in the housing (1), at least one second engaging surface (121) is formed in the engaging cavity (12), and the first engaging surface (631) cooperates with the second engaging surface (121).

9. The manually dimming curtain transmission box according to claim 1, characterized in that: A bearing (13) is connected between the transmission tooth (51) and the housing (1).

10. A vertical blind, characterized in that: It comprises a manually dimming curtain transmission box and a motor as described in any one of claims 1 to 9, wherein the motor comprises a motor and an output part, the output part is connected to the input part (3), and a second clutch mechanism is arranged between the motor and the output part.

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